CN112539582B - Vehicle air conditioning refrigeration system visual cleaning tool and use method thereof - Google Patents
Vehicle air conditioning refrigeration system visual cleaning tool and use method thereof Download PDFInfo
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- CN112539582B CN112539582B CN202011516500.2A CN202011516500A CN112539582B CN 112539582 B CN112539582 B CN 112539582B CN 202011516500 A CN202011516500 A CN 202011516500A CN 112539582 B CN112539582 B CN 112539582B
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- 230000000007 visual effect Effects 0.000 title claims abstract description 187
- 238000004140 cleaning Methods 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004378 air conditioning Methods 0.000 title claims description 158
- 238000005057 refrigeration Methods 0.000 title claims description 65
- 239000003507 refrigerant Substances 0.000 claims abstract description 397
- 230000001105 regulatory effect Effects 0.000 claims abstract description 140
- 239000007788 liquid Substances 0.000 claims abstract description 84
- 230000000694 effects Effects 0.000 claims abstract description 33
- 230000003749 cleanliness Effects 0.000 claims abstract description 27
- 230000004927 fusion Effects 0.000 claims abstract description 11
- 239000010453 quartz Substances 0.000 claims description 65
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 65
- 230000001681 protective effect Effects 0.000 claims description 33
- 238000011049 filling Methods 0.000 claims description 25
- 239000011521 glass Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 37
- 238000001914 filtration Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 8
- 238000000746 purification Methods 0.000 description 8
- 238000012800 visualization Methods 0.000 description 7
- 238000002309 gasification Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000010726 refrigerant oil Substances 0.000 description 5
- 239000012459 cleaning agent Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000012747 synergistic agent Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00585—Means for monitoring, testing or servicing the air-conditioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a visual cleaning tool for a vehicle air conditioner refrigerating system and a use method thereof, wherein a high-pressure regulating valve and a low-pressure regulating valve on a valve body are used for regulating the pressure of a refrigerant, when the pressure difference between a high-pressure end and a low-pressure end of the valve body is large, a liquid refrigerant is instantaneously changed into a gaseous refrigerant, so that the technical effect of purifying the refrigerant is achieved, the refrigerant is cleaned, and the cleanliness of the refrigerant is improved; the vehicle air conditioner refrigerating system can be cleaned through the visual cleaning tool of the vehicle air conditioner refrigerating system, the refrigerant is vaporized and purified, the refrigerant is cleaned, the cleanliness of the refrigerant is improved, and the cleanliness of the refrigerant and the fusion state of the refrigerant and the refrigerating oil can be visually observed, so that the situation in the vehicle air conditioner refrigerating system can be known in time, the purpose of detecting the vehicle air conditioner refrigerating system is achieved, the cleanliness of the interior of the vehicle air conditioner refrigerating system and the purity of the refrigerant are improved, and the purposes of improving the heat exchange efficiency, improving the refrigerating effect of the air conditioner, saving energy and reducing emission are achieved.
Description
Technical Field
The invention relates to the technical field of vehicle air conditioner refrigerating system cleaning, in particular to a visual cleaning tool for a vehicle air conditioner refrigerating system and a using method thereof.
Background
Currently, in the related art, measuring the high and low pressure of an air conditioning system and filling refrigerant in the maintenance process of a vehicle air conditioner is an indispensable link. The tool with the highest use frequency and coverage rate in the current market is a refrigerant table group, which mainly comprises: the high-pressure meter, the low-pressure meter, the valve body, the high-pressure regulating valve, the low-pressure regulating valve, the sight glass, the high-pressure service hose, the low-pressure service hose and the filling hose are formed, as shown in a patent CN 201520791171.0. The refrigerant meter set only has the functions of measuring the high and low pressure of the vehicle air conditioning system, filling the refrigerant and connecting the vacuum pump to vacuumize the air conditioning system in the using process, and has no functions of observing the dirt condition of the refrigerant in the air conditioning system and the mixing condition of the refrigerant and the frozen oil, and also has no functions of filtering and cleaning the vehicle air conditioning system and purifying the refrigerant.
In the maintenance process of the vehicle air conditioner, if the pollution condition of the refrigerant and the dissolution condition of the refrigerant and the refrigerating oil in the vehicle air conditioning system can be observed through the visualization tool, the method can provide important basis for fault diagnosis of the air conditioning system and whether the used refrigerant and the refrigerating oil meet the standards. Therefore, the visual cleaning tool for the vehicle air conditioner refrigerating system is designed, and the filtering device is used for circularly filtering, cleaning or gasifying and purifying the refrigerant in the air conditioner system before new refrigerant is replaced or added, so that the cleanliness and the purity of the refrigerant in the vehicle air conditioner system are improved and improved, and the purposes of improving the heat exchange efficiency, improving the refrigerating effect of the air conditioner, saving energy and reducing emission are achieved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, a first aspect of the invention proposes a visual cleaning tool for a vehicle air conditioning refrigeration system.
A second aspect of the present invention provides a method for using a visual cleaning tool for a vehicle air conditioning and refrigeration system.
In view of this, a first aspect of the present invention provides a vehicle air conditioning refrigeration system visual cleaning tool, the vehicle air conditioning refrigeration system visual cleaning tool including a high pressure end and a low pressure end, the high pressure end of the vehicle air conditioning refrigeration system visual cleaning tool being connected to a high pressure port of the vehicle air conditioning refrigeration system, the low pressure end of the vehicle air conditioning refrigeration system visual cleaning tool being connected to a low pressure port of the vehicle air conditioning refrigeration system, the vehicle air conditioning refrigeration system visual cleaning tool comprising: the high-pressure quick connector, the high-pressure service hose, the high-pressure ball valve, the high-pressure visual refrigerant bottle, the filter, the first observation window, the valve body, the low-pressure visual refrigerant bottle, the second observation window, the low-pressure ball valve, the low-pressure service hose and the low-pressure quick connector; the high-pressure quick connector is communicated with a high-pressure port of the vehicle air-conditioning refrigerating system; one end of the high-pressure service hose is communicated with the high-pressure quick connector; one end of the high-pressure ball valve is communicated with the other end of the high-pressure service hose; one end of the high-pressure visual refrigerant bottle is connected with the other end of the high-pressure ball valve; the filter is embedded into the high-pressure visual refrigerant bottle, the filter is connected with the high-pressure visual refrigerant bottle, and one end of the filter is communicated with the other end of the high-pressure ball valve; the first observation window is arranged on the side wall of the high-pressure visual refrigerant bottle; the valve body comprises a high-pressure regulating valve, a low-pressure regulating valve and a sight glass, the low-pressure regulating valve is communicated with the high-pressure regulating valve, the sight glass is positioned between the high-pressure regulating valve and the low-pressure regulating valve, and the high-pressure regulating valve is communicated with the other end of the high-pressure visual refrigerant bottle; one end of the low-pressure visual refrigerant bottle is communicated with the low-pressure regulating valve; the second observation window is arranged on the side wall of the low-pressure visual refrigerant bottle; one end of the low-pressure ball valve is communicated with the other end of the low-pressure visual refrigerant bottle; one end of the low-pressure service hose is communicated with the other end of the low-pressure ball valve; one end of the low-pressure quick connector is communicated with the other end of the low-pressure service hose, and the other end of the low-pressure quick connector is communicated with a low-pressure port of the vehicle air-conditioning refrigerating system.
In the technical scheme, firstly, the high-pressure quick connector is communicated with a high-pressure port of a vehicle air-conditioning refrigerating system, so that the high-pressure quick connector is quickly connected with the high-pressure port of the vehicle air-conditioning refrigerating system; secondly, one end of a high-pressure service hose is communicated with a high-pressure quick connector, so that a refrigerant in a vehicle air conditioner refrigerating system is injected into the high-pressure service hose from a high-pressure port; thirdly, one end of the high-pressure ball valve is communicated with the other end of the high-pressure service hose, and one end of the high-pressure visual refrigerant bottle is connected with the other end of the high-pressure ball valve so as to conduct flow guiding through the high-pressure service hose, so that liquid refrigerant enters the high-pressure visual refrigerant bottle; Thirdly, the filter is embedded into the high-pressure visual refrigerant bottle, the filter is connected with the high-pressure visual refrigerant bottle, one end of the filter is communicated with the other end of the high-pressure ball valve, whether the high-pressure visual refrigerant bottle is communicated with a high-pressure port of a vehicle air conditioner refrigerating system or not is controlled by the high-pressure ball valve, and liquid refrigerant flowing into the high-pressure visual refrigerant bottle is filtered by the filter, so that the cleanliness of the liquid refrigerant is improved; thirdly, the first observation window is arranged on the side wall of the high-pressure visual refrigerant bottle so as to observe the height of the liquid refrigerant in the high-pressure visual refrigerant bottle, the high-pressure ball valve switch is adjusted according to the volume of the liquid refrigerant, and the cleanliness of the liquid refrigerant can be observed so as to confirm whether the liquid refrigerant needs to be continuously cleaned or not; Again, the valve body includes a high pressure regulating valve, a low pressure regulating valve, and a sight glass, by communicating the low pressure regulating valve with the high pressure regulating valve, the sight glass is positioned between the high-pressure regulating valve and the low-pressure regulating valve, and the high-pressure regulating valve is communicated with the other end of the high-pressure visual refrigerant bottle so that the filtered clean refrigerant enters the valve body; thirdly, one end of the low-pressure visual refrigerant bottle is communicated with a low-pressure regulating valve, and the pressure is reduced by regulating the low-pressure regulating valve and the high-pressure regulating valve, so that the purpose of regulating the flow rate of the refrigerant is achieved, and the liquid refrigerant is changed into a gaseous refrigerant to be discharged; thirdly, a second observation window is arranged on the side wall of the low-pressure visual refrigerant bottle so as to observe whether the refrigerant in the low-pressure visual refrigerant bottle exists in a gaseous refrigerant form or not and observe the flow velocity of the gaseous refrigerant at the same time; Thirdly, one end of the low-pressure ball valve is communicated with the other end of the low-pressure visual refrigerant bottle so as to control the flow rate of the gaseous refrigerant discharged; and thirdly, one end of the low-pressure service hose is communicated with the other end of the low-pressure ball valve, one end of the low-pressure quick connector is communicated with the other end of the low-pressure service hose, and the other end of the low-pressure quick connector is communicated with a low-pressure port of the vehicle air-conditioning refrigerating system, so that gasified and purified refrigerant flows back into the vehicle air-conditioning refrigerating system, and the aim of cleaning the refrigerant is fulfilled. By adopting the connection mode, the structure is simple, the liquid refrigerant flows out from the high-pressure port of the vehicle air conditioner refrigerating system, flows through the high-pressure service hose and adjusts the flow of the liquid refrigerant through the high-pressure ball valve, so that the liquid refrigerant slowly flows into the filter in the high-pressure visual refrigerant bottle to be filtered, massive solid impurities in the liquid refrigerant are filtered firstly, and the filtering condition, the cleanliness of the liquid refrigerant and the fusion state of the refrigerant and the refrigerating oil are observed through the first observation window, so that whether the refrigerant needs to be continuously cleaned or not is judged, and repeated cleaning is avoided. The pressure of the refrigerant is regulated through the high-pressure regulating valve and the low-pressure regulating valve on the valve body, when the pressure difference between the high-pressure end and the low-pressure end of the valve body is large, the liquid refrigerant is instantaneously changed into a gaseous refrigerant, the technical effect of purifying the refrigerant is achieved, the refrigerant is further cleaned, and the cleaning degree of the refrigerant is improved; the vaporized gaseous refrigerant is observed through a second observation window on the low-pressure visual refrigerant bottle, so that the refrigerant is ensured to exist in a gaseous form, and meanwhile, the flow velocity of the gaseous refrigerant can be observed; the flow velocity of the gaseous refrigerant is controlled through the low-pressure ball valve, so that the problem of damage to the vehicle caused by overlarge pressure when the gaseous refrigerant enters the vehicle air-conditioning refrigerating system is avoided; the vehicle air conditioner refrigerating system can be cleaned through the visual cleaning tool of the vehicle air conditioner refrigerating system, the refrigerant is gasified and purified, the refrigerant is cleaned, the cleanliness of the refrigerant is improved, the cleaning degree of the refrigerant and the fusion state of the refrigerant and the refrigerating oil can be visually observed, so that the situation in the vehicle air conditioner refrigerating system can be timely known, the purpose of detecting the vehicle air conditioner refrigerating system is achieved, the cleanliness of the interior of the vehicle air conditioner refrigerating system and the purity of the refrigerant are improved and promoted, and the purposes of improving the heat exchange efficiency, improving the refrigerating effect of the air conditioner, saving energy and reducing emission are achieved.
In addition, the visual cleaning tool for the vehicle air conditioner refrigerating system provided by the technical scheme of the invention can also have the following additional technical characteristics:
In the foregoing technical solution, preferably, the visual cleaning tool for a vehicle air conditioning refrigeration system further includes: a high pressure gauge and a low pressure gauge; the high-pressure gauge is communicated with the high-pressure regulating valve, and is connected with the valve body; the low pressure gauge is connected with the low pressure regulating valve, and the low pressure gauge is connected with the valve body.
In the technical proposal, the high-pressure gauge is communicated with the high-pressure regulating valve, the high-pressure gauge is connected with the valve body, the low-pressure gauge is communicated with the low-pressure regulating valve, the low-pressure gauge is connected with the valve body, the pressure at two ends of the valve body is visually presented in a numerical form, so that the high-pressure regulating valve and the low-pressure regulating valve can be quickly and accurately regulated, the regulating speed is improved, invalid liquid circulation is avoided, and the cleaning efficiency is ensured.
In the foregoing technical solution, preferably, the visual cleaning tool for a vehicle air conditioning refrigeration system further includes: an exhaust valve, a filling hose and a ball valve; one end of the exhaust valve is communicated with the valve body; one end of the filling hose is communicated with the other end of the exhaust valve; the ball valve is communicated with the other end of the filling hose.
In this technical scheme, after wasing, accessible filling hose connection workshop air supply, closed low pressure ball valve and low pressure control valve, open high pressure control valve and high pressure ball valve, remove high pressure quick-operation joint, utilize compressed air to pass through high-pressure service hose with impurity and the greasy dirt that the filter was filtered out and discharge, realize the abluent technological effect of visual cleaning tool to vehicle air conditioner refrigerating system to use next time.
In the foregoing technical solution, preferably, the visual cleaning tool for a vehicle air conditioning refrigeration system further includes: a hanging rod and a hook; one end of the hanging rod is connected with the valve body; the hook is connected with the other end of the hanging rod.
In the technical scheme, one end of the hanging rod is connected with the valve body, so that the hanging rod is firmly connected with the valve body; the hanging hook is connected with the other end of the hanging rod, so that the hanging hook is firmly connected with the hanging rod, visual cleaning tools of the vehicle air conditioner refrigerating system are hung through the hanging hook, and the technical effect of storing and collecting the visual cleaning tools of the vehicle air conditioner refrigerating system is achieved.
In the above technical solution, preferably, the high-pressure visual refrigerant bottle further includes: the device comprises a first quartz tube, a first protective cover, a first lower cover and a first upper cover; the first quartz tube is wound on the outer side of the filter; a first observation window is arranged on the side wall of the first protective cover, and the first protective cover is sleeved on the outer side of the first quartz tube; the first lower cover is arranged on the outer side of one end of the first protective cover, is connected with one end of the first quartz tube, and is connected with the other end of the high-pressure ball valve; the first upper cover is covered and is established the outside at the first protection casing other end, and first upper cover is connected with the other end of first quartz capsule, and first upper cover is connected with the valve body, and first upper cover is linked together with high pressure control valve.
In the technical scheme, the first quartz tube is wound on the outer side of the filter to achieve the purpose of containing liquid refrigerant, and the condition in the filter is visually presented so as to observe the cleanliness of the liquid refrigerant; the first observation window is arranged on the side wall of the first protective cover, and the first protective cover is sleeved on the outer side of the first quartz tube, so that the protection effect on the first quartz tube is realized, the first quartz tube is prevented from being damaged, an observation position is reserved, and the situation in the first quartz tube is convenient to observe; the first lower cover is arranged on the outer side of one end of the first protective cover and connected with one end of the first quartz tube, and the first lower cover is connected with the other end of the high-pressure ball valve so as to seal one end of the first quartz tube, and the flow rate of liquid refrigerant is controlled through the high-pressure ball valve, so that the filtering rate of the filter is controlled, and the filtering effect is improved; the first upper cover is arranged on the outer side of the other end of the first protective cover and connected with the other end of the first quartz tube, the first upper cover is connected with the valve body and communicated with the high-pressure regulating valve to seal the other end of the first quartz tube, and the pressure of liquid refrigerant flowing into the valve body is regulated through the high-pressure regulating valve, so that the liquid refrigerant is conveniently vaporized into gaseous refrigerant through a large pressure difference, and the technical effect of gasification purification is realized.
In the above technical solution, preferably, the low-pressure visual refrigerant bottle further includes: the second quartz tube, the second protective cover, the second upper cover and the second lower cover; one end of the second quartz tube is communicated with the low-pressure regulating valve, and the other end of the second quartz tube is communicated with one end of the low-pressure ball valve; a second observation window is arranged on the side wall of the second protective cover, and the second protective cover is sleeved on the outer side of the second quartz tube; the second upper cover is arranged on the outer side of the other end of the second protective cover, is connected with one end of the second quartz tube, is connected with the valve body and is communicated with the low-pressure regulating valve; the second lower cover is covered and is established the outside in second protection casing one end, and the second lower cover is connected with the other end of second quartz capsule, and the second lower cover is connected with the one end of low pressure ball valve.
In the technical scheme, one end of the second quartz tube is communicated with the low-pressure regulating valve, and the other end of the second quartz tube is communicated with one end of the low-pressure ball valve, so that the accommodation effect of the gaseous refrigerant is realized, and whether the refrigerant flows out in a gaseous refrigerant form or not can be conveniently observed; the side wall of the second protective cover is provided with a second observation window, and the second protective cover is sleeved on the outer side of the second quartz tube, so that the protection effect on the second quartz tube is realized, an observation position is reserved, and the flow speed and the form of the gaseous refrigerant are observed; the second upper cover is arranged on the outer side of the other end of the second protective cover and connected with one end of the second quartz tube, the second upper cover is connected with the valve body and communicated with the low-pressure regulating valve so as to seal one end of the second quartz tube, and the vaporization pressure of the liquid refrigerant is regulated by the low-pressure regulating valve, so that the liquid refrigerant is changed into a gaseous refrigerant, the technical effect of vaporization purification is realized, and the aim of cleaning and purifying the refrigerant is fulfilled; the second lower cover is arranged on the outer side of one end of the second protective cover and connected with the other end of the second quartz tube, and the second lower cover is connected with one end of the low-pressure ball valve so as to adjust the speed of discharging the gaseous refrigerant into the vehicle air-conditioning refrigerating system, thereby avoiding the pressure of the vehicle air-conditioning refrigerating system from being increased instantaneously and causing damage to the vehicle.
A second aspect of the present invention provides a method for using a visual cleaning tool for a vehicle air conditioning refrigeration system, applied to the visual cleaning tool for a vehicle air conditioning refrigeration system according to any one of claims 1 to 6, the method for using a visual cleaning tool for a vehicle air conditioning refrigeration system comprising: s1, connecting a high-pressure quick connector with a high-pressure port of a vehicle air-conditioning refrigerating system, and connecting a low-pressure quick connector with a low-pressure port of the vehicle air-conditioning refrigerating system; s2, starting a vehicle air-conditioning refrigerating system, regulating the temperature of the vehicle air-conditioning refrigerating system to be the lowest, and regulating the air quantity of the vehicle air-conditioning refrigerating system to be the maximum; s3, opening the high-pressure ball valve, and enabling the liquid refrigerant in the high-pressure port of the vehicle air conditioner refrigerating system to flow into the high-pressure visual refrigerant bottle after flowing through the filter in a liquid state; s4, adjusting a high-pressure regulating valve and a low-pressure regulating valve, and observing a sight glass in the middle of the front surface of the valve body until the liquid refrigerant flows into a low-pressure visual refrigerant bottle and then becomes a gaseous refrigerant; s5, opening a low-pressure ball valve to enable the refrigerant to be sucked into a low-pressure port of a vehicle air-conditioning refrigeration system in a gaseous state; s6, continuously injecting a gaseous refrigerant into a low-pressure port of the vehicle air-conditioning refrigeration system for not less than ten minutes; s7, closing the high-pressure ball valve until all liquid refrigerant in the high-pressure visual refrigerant bottle enters the low-pressure visual refrigerant bottle; s8, closing the high-pressure regulating valve until all gaseous refrigerants in the low-pressure visual refrigerant bottle enter a low-pressure port of the vehicle air-conditioning refrigerating system; s9, closing the low-pressure regulating valve and closing the low-pressure ball valve.
In the technical scheme, S1, a high-pressure quick connector is connected with a high-pressure port of a vehicle air-conditioning refrigerating system, and a low-pressure quick connector is connected with a low-pressure port of the vehicle air-conditioning refrigerating system, so that a visual cleaning tool of the vehicle air-conditioning refrigerating system is communicated with the vehicle air-conditioning refrigerating system, and refrigerant leakage is avoided; s2, starting the vehicle air-conditioning refrigerating system, adjusting the temperature of the vehicle air-conditioning refrigerating system to be the lowest, and adjusting the air quantity of the vehicle air-conditioning refrigerating system to be the maximum, so that the refrigerating capacity of the vehicle air-conditioning refrigerating system is the strongest, and more refrigerants are discharged; s3, opening the high-pressure ball valve, and enabling the refrigerant in the high-pressure port of the vehicle air conditioner refrigerating system to flow through the filter in a liquid state, wherein the liquid refrigerant flows into the high-pressure visual refrigerant bottle so as to filter the liquid refrigerant, so that solid impurities in the liquid refrigerant are removed; s4, adjusting the high-pressure regulating valve and the low-pressure regulating valve, observing the sight glass in the middle of the front surface of the valve body until the liquid refrigerant flows into the low-pressure visual refrigerant bottle and then is changed into a gaseous refrigerant, so that the liquid refrigerant is changed into the gaseous refrigerant, the technical effect of refrigerant gasification purification is realized, the cleaning of the refrigerant is realized, and the cleanliness of the refrigerant is improved; s5, by opening the low-pressure ball valve, the refrigerant is sucked into a low-pressure port of the vehicle air-conditioning refrigerating system in a gaseous state, namely, the clean gaseous refrigerant flows back into the vehicle air-conditioning refrigerating system again; s6, the gaseous refrigerant is ensured to be continuously injected into a low-pressure port of the vehicle air-conditioning refrigerating system for not less than ten minutes, so that the duration of filtration and gasification purification is ensured, and the refrigerant in the vehicle air-conditioning refrigerating system is ensured to be completely filtered and cleaned, and the cleanliness of the refrigerant is ensured; s7, closing the high-pressure ball valve until all liquid refrigerant in the high-pressure visual refrigerant bottle enters the low-pressure visual refrigerant bottle, so as to ensure that the liquid refrigerant in the vehicle air-conditioning refrigerating system does not continuously enter the high-pressure visual refrigerant bottle any more; s8, closing the high-pressure regulating valve until all the gaseous refrigerant in the low-pressure visual refrigerant bottle enters the low-pressure port of the vehicle air-conditioning refrigerating system, so that all the purified gaseous refrigerant flows back into the vehicle air-conditioning refrigerating system again, and waste and pollution are avoided; and S9, closing the low-pressure regulating valve, closing the low-pressure ball valve, and completing the cleaning work of the vehicle air-conditioning refrigerating system.
In addition, the use method of the visual cleaning tool for the vehicle air conditioner refrigerating system provided by the invention can also have the following additional technical characteristics:
In the above technical solution, preferably, the method for using the visual cleaning tool of the vehicle air conditioner refrigeration system further includes: s10, slowly opening a high-pressure ball valve to enable liquid refrigerant to flow into a high-pressure visual refrigerant bottle; s11, closing the high-pressure ball valve until the liquid level of the refrigerant reaches 2/3 of the height of the first observation window; s12, observing the cleanliness of the refrigerant in the high-pressure visual refrigerant bottle and the fusion state of the refrigerant and the refrigerating oil; s13, carrying out corresponding treatment on the refrigerant according to the state of the refrigerant in the high-pressure visual refrigerant bottle; s14, closing the high-pressure ball valve, the high-pressure regulating valve, the low-pressure regulating valve and the low-pressure ball valve, disconnecting the high-pressure quick connector from a high-pressure port of the vehicle air conditioner refrigerating system, and disconnecting the low-pressure quick connector from a low-pressure port of the vehicle air conditioner refrigerating system.
In the technical scheme, S10, a liquid refrigerant flows into a high-pressure visual refrigerant bottle by slowly opening a high-pressure ball valve so as to avoid the problems of influence on observation and detection results caused by excessive bubbles generated by the mixed liquid of the refrigerant and the refrigerating oil; s11, closing the high-pressure ball valve until the liquid level of the refrigerant reaches 2/3 of the height of the first observation window, so that the mixture of the refrigerant and the frozen oil has a certain height, the observation is convenient, a certain standing time is ensured, and the detection result is accurate; s12, judging the dirt condition of a vehicle air-conditioning refrigerating system and the matching condition of the refrigerant and the type of the refrigerating oil by observing the cleanliness of the refrigerant in the high-pressure visual refrigerant bottle and the fusion state of the refrigerant and the refrigerating oil; s13, carrying out corresponding treatment on the refrigerant according to the state of the refrigerant in the high-pressure visual refrigerant bottle, and carrying out treatment according to the detection result so as to avoid the waste of replacing the clean cold refrigerant; s14, closing the high-pressure ball valve, the high-pressure regulating valve, the low-pressure regulating valve and the low-pressure ball valve to ensure that the vehicle air-conditioning refrigerating system is not communicated with the visual cleaning tool of the vehicle air-conditioning refrigerating system, disconnecting the high-pressure quick connector from the high-pressure port of the vehicle air-conditioning refrigerating system, disconnecting the low-pressure quick connector from the low-pressure port of the vehicle air-conditioning refrigerating system, and dismantling the visual cleaning tool of the vehicle air-conditioning refrigerating system to finish cleaning and detection of the refrigerant in the vehicle air-conditioning refrigerating system.
In the above technical scheme, preferably, if the cleaning degree of the refrigerant in the high-pressure visual refrigerant bottle is high, the mixing state of the refrigerant and the refrigerating oil is good, and the refrigerating effect of the air conditioner is within a reasonable temperature range, the ball valve is opened, and the refrigerant and the refrigerating oil or the air conditioner synergist are supplemented from the filling hose; when the layering and the non-mixing phenomenon of the refrigerant and the refrigerating oil exist in the high-pressure visual refrigerant bottle, the refrigerant and the refrigerating oil are replaced again.
In the technical scheme, the refrigerant and the refrigerating oil or the air conditioner synergist are supplemented from the filling hose by opening the ball valve when the refrigerant and the refrigerating oil are in a reasonable temperature range through high-pressure visual refrigerant bottle, such as high refrigerant cleanliness and good refrigerant and refrigerating oil fusion state, so that the refrigerant and the refrigerating oil are ensured to be sufficient; when the layering and the non-miscibility phenomenon of the refrigerant and the refrigerating oil exist in the high-pressure visual refrigerant bottle, the refrigerant and the refrigerating oil are replaced again, and the refrigerating effect is ensured.
Specifically, if the cleaning degree of the refrigerant is high, the mixing state of the refrigerant and the refrigerating oil is good, the refrigerating effect of the air conditioner is in a reasonable temperature range, and after the circulating cleaning, the reasonable refrigerant and the refrigerating oil or the air conditioner synergist are supplemented from the filling hose by referring to the values of the ambient temperature and the high and low pressure of the air conditioner. (if the reference value is that the ambient temperature is 30 ℃, the low pressure of the air conditioning system is 0.15-0.25MP, and the high pressure of the air conditioning system is 1.3-1.6 MP).
Specifically, during the cleaning process, refrigerant, refrigeration oil and air conditioner synergistic agent can be supplemented into the vehicle air conditioner refrigerating system through the filling hose according to the previous detection and diagnosis result; the cleaning agent can be filled into the vehicle air-conditioning refrigerating system through the filling hose according to the dirt degree of the vehicle air-conditioning refrigerating system, so that the cleaning agent can be removed from the air-conditioning refrigerating system packaged by the pressure aerosol can, and a better cleaning effect can be achieved.
Specifically, after cleaning or detection, the filling hose can be connected with a workshop air source, the low-pressure ball valve and the low-pressure regulating valve are closed, the high-pressure regulating valve and the high-pressure ball valve are opened, the high-pressure quick connector on the high-pressure service hose is removed, and the impurities and greasy dirt of the filter are discharged through the high-pressure service hose by utilizing compressed air.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 illustrates a schematic diagram of a visual cleaning tool for a vehicle air conditioning and refrigeration system in accordance with one embodiment of the present invention;
FIG. 2 illustrates a schematic diagram of a visual cleaning tool for a vehicle air conditioning and refrigeration system according to another embodiment of the present invention;
FIG. 3 illustrates a schematic diagram of a visual cleaning tool for a vehicle air conditioning and refrigeration system in accordance with yet another embodiment of the present invention;
FIG. 4 illustrates a flow chart of a method of using a vehicle air conditioning refrigeration system visualization cleaning tool in accordance with one embodiment of the present invention;
FIG. 5 illustrates a flow chart of a method of using a vehicle air conditioning and refrigeration system visualization cleaning tool in accordance with another embodiment of the present invention;
wherein, the correspondence between the reference numerals and the component names in fig. 1 to 5 is:
10. A high pressure quick connector; 12. a high pressure service hose; 14. a high pressure ball valve; 16. high-pressure visual refrigerant bottle; 161. a first quartz tube; 162. a first shield; 163. a first lower cover; 164. a first upper cover; 18. a filter; 20. a first viewing window; 22. a valve body; 221. a high pressure regulating valve; 222. a low pressure regulating valve; 223. a viewing mirror; 24. a low-pressure visual refrigerant bottle; 241. a second quartz tube; 242. a second shield; 243. a second upper cover; 244. a second lower cover; 26. a second viewing window; 28. a low pressure ball valve; 30. a low pressure service hose; 32. a low pressure quick connector; 34. a high pressure gauge; 36. a low pressure gauge; 38. an exhaust valve; 40. filling a hose; 42. a ball valve; 44. a hanging rod; 46. a hook.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A visual cleaning tool for a vehicle air conditioning and refrigerating system and a method of using the visual cleaning tool for a vehicle air conditioning and refrigerating system according to some embodiments of the present invention are described below with reference to fig. 1 to 5.
In an embodiment of the present invention, as shown in fig. 1 to 3, a visual cleaning tool for a vehicle air-conditioning refrigeration system is provided in a first aspect of the present invention, the visual cleaning tool for a vehicle air-conditioning refrigeration system includes a high-pressure end and a low-pressure end, the high-pressure end of the visual cleaning tool for a vehicle air-conditioning refrigeration system is connected to a high-pressure port of the vehicle air-conditioning refrigeration system, the low-pressure end of the visual cleaning tool for a vehicle air-conditioning refrigeration system is connected to a low-pressure port of the vehicle air-conditioning refrigeration system, and the visual cleaning tool for a vehicle air-conditioning refrigeration system includes: a high pressure quick connector 10, a high pressure service hose 12, a high pressure ball valve 14, a high pressure visual refrigerant bottle 16, a filter 18, a first viewing window 20, a valve body 22, a low pressure visual refrigerant bottle 24, a second viewing window 26, a low pressure ball valve 28, a low pressure service hose 30 and a low pressure quick connector 32; the high-pressure quick connector 10 is communicated with a high-pressure port of a vehicle air-conditioning refrigeration system; one end of the high-pressure service hose 12 is communicated with the high-pressure quick connector 10; one end of the high-pressure ball valve 14 is communicated with the other end of the high-pressure service hose 12; one end of the high-pressure visual refrigerant bottle 16 is connected with the other end of the high-pressure ball valve 14; the filter 18 is embedded in the high-pressure visual refrigerant bottle 16, the filter 18 is connected with the high-pressure visual refrigerant bottle 16, and one end of the filter 18 is communicated with the other end of the high-pressure ball valve 14; the first observation window 20 is arranged on the side wall of the high-pressure visual refrigerant bottle 16; the valve body 22 includes a high-pressure regulating valve 221, a low-pressure regulating valve 222, and a sight glass 223, the low-pressure regulating valve 222 communicates with the high-pressure regulating valve 221, the sight glass 223 is positioned between the high pressure regulating valve 221 and the low pressure regulating valve 222, and the high pressure regulating valve 221 is communicated with the other end of the high pressure visual refrigerant bottle 16; one end of the low-pressure visual refrigerant bottle 24 is communicated with a low-pressure regulating valve 222; the second observation window 26 is arranged on the side wall of the low-pressure visual refrigerant bottle 24; one end of the low-pressure ball valve 28 is communicated with the other end of the low-pressure visual refrigerant bottle 24; one end of the low pressure service hose 30 communicates with the other end of the low pressure ball valve 28; one end of the low pressure quick connector 32 communicates with the other end of the low pressure service hose 30, and the other end of the low pressure quick connector 32 communicates with a low pressure port of the vehicle air conditioning and refrigeration system.
In this embodiment, first, the high-pressure quick connector 10 is quickly connected to the high-pressure port of the vehicle air-conditioning refrigeration system by communicating the high-pressure quick connector 10 to the high-pressure port of the vehicle air-conditioning refrigeration system; secondly, one end of a high-pressure service hose 12 is communicated with the high-pressure quick connector 10, so that a refrigerant in the vehicle air-conditioning refrigerating system is injected into the high-pressure service hose from a high-pressure port; thirdly, one end of the high-pressure ball valve 14 is communicated with the other end of the high-pressure service hose 12, and one end of the high-pressure visual refrigerant bottle 16 is connected with the other end of the high-pressure ball valve 14 so as to conduct flow guiding through the high-pressure service hose 12, so that liquid refrigerant enters the high-pressure visual refrigerant bottle 16; Thirdly, the filter 18 is embedded into the high-pressure visual refrigerant bottle 16, the filter 18 is connected with the high-pressure visual refrigerant bottle 16, one end of the filter 18 is communicated with the other end of the high-pressure ball valve 14, whether the high-pressure visual refrigerant bottle 16 is communicated with a high-pressure port of a vehicle air conditioner refrigerating system or not is controlled by the high-pressure ball valve 14, and liquid refrigerant flowing into the high-pressure visual refrigerant bottle 16 is filtered by the filter 18, so that the cleanliness of the liquid refrigerant is improved; thirdly, the first observation window 20 is arranged on the side wall of the high-pressure visual refrigerant bottle 16 so as to observe the height of the liquid refrigerant in the high-pressure visual refrigerant bottle 16, the high-pressure ball valve 14 is adjusted to be opened and closed according to the volume of the liquid refrigerant, and the cleanliness of the liquid refrigerant can be observed so as to confirm whether the cleaning is needed to be continued or not; Again, the valve body 22 includes a high pressure regulating valve 221, a low pressure regulating valve 222, and a sight glass 223, by communicating the low pressure regulating valve 222 with the high pressure regulating valve 221, the sight glass 223 is located between the high pressure regulating valve 221 and the low pressure regulating valve 222, and the high pressure regulating valve 221 is communicated with the other end of the high pressure visual refrigerant bottle 16, so that the filtered clean refrigerant enters into the valve body 22; thirdly, one end of the low-pressure visual refrigerant bottle 24 is communicated with the low-pressure regulating valve 222, and the pressure is reduced by regulating the low-pressure regulating valve 222 and the high-pressure regulating valve 221, so that the purpose of regulating the flow rate of the refrigerant is achieved, and the liquid refrigerant is changed into a gaseous refrigerant to be discharged; Thirdly, by arranging the second observation window 26 on the side wall of the low-pressure visual refrigerant bottle 24, whether the refrigerant in the low-pressure visual refrigerant bottle 24 exists in the form of a gaseous refrigerant or not is observed, and meanwhile, the flow rate of the gaseous refrigerant is observed; again, by communicating one end of the low pressure ball valve 28 with the other end of the low pressure visual refrigerant bottle 24, the flow rate of gaseous refrigerant discharge is controlled; and one end of the low-pressure service hose 30 is communicated with the other end of the low-pressure ball valve 28, one end of the low-pressure quick connector 32 is communicated with the other end of the low-pressure service hose 30, and the other end of the low-pressure quick connector 32 is communicated with a low-pressure port of the vehicle air-conditioning refrigerating system, so that gasified and purified refrigerant flows back into the vehicle air-conditioning refrigerating system, and the aim of cleaning the refrigerant is fulfilled. By adopting the connection mode, the structure is simple, the liquid refrigerant flows out from the high-pressure port of the vehicle air-conditioning refrigerating system, flows through the high-pressure service hose 12, and adjusts the flow of the liquid refrigerant through the high-pressure ball valve 14, so that the liquid refrigerant slowly flows into the filter 18 in the high-pressure visual refrigerant bottle 16 for filtering, massive solid impurities in the liquid refrigerant are filtered, the filtering condition, the cleanliness of the liquid refrigerant and the fusion state of the refrigerant and the refrigerating oil are observed through the first observation window 20, and whether the refrigerant is required to be continuously cleaned or not is judged, and repeated cleaning is avoided. The pressure of the refrigerant is regulated through the high-pressure regulating valve 221 and the low-pressure regulating valve 222 on the valve body 22, when the pressure difference between the high-pressure end and the low-pressure end of the valve body 22 is large, the liquid refrigerant is instantaneously changed into a gaseous refrigerant, the technical effect of purifying the refrigerant is achieved, the refrigerant is further cleaned, and the cleaning degree of the refrigerant is improved; The vaporized gaseous refrigerant is observed through a second observation window 26 on the low-pressure visual refrigerant bottle 24, so that the refrigerant is ensured to exist in a gaseous form, and meanwhile, the flow velocity of the gaseous refrigerant can be observed; the flow rate of the gaseous refrigerant is controlled through the low-pressure ball valve 28, so that the problem of damage to the vehicle caused by overlarge pressure when entering the vehicle air-conditioning refrigeration system is avoided; the vehicle air conditioner refrigerating system can be cleaned through the visual cleaning tool of the vehicle air conditioner refrigerating system, the refrigerant is gasified and purified, the refrigerant is cleaned, the cleanliness of the refrigerant is improved, the cleaning degree of the refrigerant and the fusion state of the refrigerant and the refrigerating oil can be visually observed, so that the situation in the vehicle air conditioner refrigerating system can be timely known, the purpose of detecting the vehicle air conditioner refrigerating system is achieved, the cleanliness of the interior of the vehicle air conditioner refrigerating system and the purity of the refrigerant are improved and promoted, and the purposes of improving the heat exchange efficiency, improving the refrigerating effect of the air conditioner, saving energy and reducing emission are achieved.
In one embodiment of the present invention, preferably, as shown in fig. 1, the vehicle air conditioning and cooling system visualization cleaning tool further includes: a high pressure gauge 34 and a low pressure gauge 36; the high-pressure gauge 34 is communicated with the high-pressure regulating valve 221, and the high-pressure gauge 34 is connected with the valve body 22; the low pressure gauge 36 is connected to the low pressure regulator valve 222, and the low pressure gauge 36 is connected to the valve body 22.
In this embodiment, by communicating the high pressure gauge 34 with the high pressure regulating valve 221, and connecting the high pressure gauge 34 with the valve body 22, and communicating the low pressure gauge 36 with the low pressure regulating valve 222, and connecting the low pressure gauge 36 with the valve body 22, the pressures at both ends of the valve body 22 are visually presented in the form of numerical values, so that the high pressure regulating valve 221 and the low pressure regulating valve 222 can be regulated quickly and accurately, the regulating speed can be improved, invalid liquid circulation can be avoided, and the cleaning efficiency can be ensured.
In one embodiment of the present invention, preferably, as shown in fig. 1, the vehicle air conditioning and cooling system visualization cleaning tool further includes: an exhaust valve 38, a fill hose 40, and a ball valve 42; one end of the exhaust valve 38 communicates with the valve body 22; one end of the filling hose 40 communicates with the other end of the vent valve 38; the ball valve 42 communicates with the other end of the filler hose 40.
In this embodiment, after cleaning, the filling hose 40 may be used to connect with a workshop air source, the low-pressure ball valve 28 and the low-pressure regulating valve 222 may be closed, the high-pressure regulating valve 221 and the high-pressure ball valve 14 may be opened, the high-pressure quick connector 10 may be removed, and the compressed air may be used to discharge the impurities and greasy dirt filtered by the filter 18 through the high-pressure service hose 12, so as to achieve the technical effect of cleaning the visual cleaning tool of the vehicle air-conditioning refrigeration system, so as to facilitate the next use.
In one embodiment of the present invention, preferably, as shown in fig. 1, the vehicle air conditioning and cooling system visualization cleaning tool further includes: a hanger bar 44 and a hanger 46; one end of the hanging rod 44 is connected with the valve body 22; the hook 46 is connected to the other end of the hanger bar 44.
In this embodiment, the hanging rod 44 is firmly connected with the valve body 22 by connecting one end of the hanging rod 44 with the valve body 22; the hanging hook 46 is connected with the other end of the hanging rod 44, so that the hanging hook 46 is firmly connected with the hanging rod 44, visual cleaning tools of the vehicle air-conditioning refrigerating system are hung through the hanging hook 46, and the technical effect of storing and collecting the visual cleaning tools of the vehicle air-conditioning refrigerating system is achieved.
In one embodiment of the present invention, preferably, as shown in fig. 1 and 2, the high-pressure visual refrigerant bottle 16 further includes: the first quartz tube 161, the first shield 162, the first lower cover 163, and the first upper cover 164; the first quartz tube 161 is wound on the outside of the filter 18; the side wall of the first protective cover 162 is provided with a first observation window 20, and the first protective cover 162 is sleeved on the outer side of the first quartz tube 161; the first lower cover 163 is arranged outside one end of the first protective cover 162, the first lower cover 163 is connected with one end of the first quartz tube 161, and the first lower cover 163 is connected with the other end of the high-pressure ball valve 14; the first upper cover 164 is disposed on the outside of the other end of the first shield 162, the first upper cover 164 is connected to the other end of the first quartz tube 161, the first upper cover 164 is connected to the valve body 22, and the first upper cover 164 is communicated with the high pressure regulating valve 221.
In this embodiment, the first quartz tube 161 is wound on the outer side of the filter 18, so as to achieve the purpose of containing the liquid refrigerant, and the condition in the filter 18 is visually presented, so that the cleanliness of the liquid refrigerant is observed; the first observation window 20 is arranged on the side wall of the first protective cover 162, and the first protective cover 162 is sleeved on the outer side of the first quartz tube 161, so that the first quartz tube 161 is protected, the first quartz tube 161 is prevented from being damaged, an observation position is reserved, and the condition in the first quartz tube 161 is convenient to observe; the first lower cover 163 is arranged outside one end of the first protective cover 162 in a covering manner, the first lower cover 163 is connected with one end of the first quartz tube 161, and the first lower cover 163 is connected with the other end of the high-pressure ball valve 14 so as to seal one end of the first quartz tube 161, and the flow rate of liquid refrigerant is controlled through the high-pressure ball valve 14, so that the filtering rate of the filter 18 is controlled, and the filtering effect is improved; through setting the first upper cover 164 to cover the outside of the other end of the first protection cover 162, the first upper cover 164 is connected with the other end of the first quartz tube 161, the first upper cover 164 is connected with the valve body 22, and the first upper cover 164 is communicated with the high-pressure regulating valve 221 so as to seal the other end of the first quartz tube 161, and the pressure of the liquid refrigerant flowing into the valve body 22 is regulated through the high-pressure regulating valve 221, so that the liquid refrigerant is conveniently vaporized into the gaseous refrigerant through a larger pressure difference, and the technical effect of gasification purification is realized.
In one embodiment of the present invention, preferably, as shown in fig. 1 and 3, the low pressure visualization refrigerant bottle 24 further includes: a second quartz tube 241, a second shield 242, a second upper cover 243, and a second lower cover 244; one end of the second quartz tube 241 is communicated with the low pressure regulating valve 222, and the other end of the second quartz tube 241 is communicated with one end of the low pressure ball valve 28; the side wall of the second protective cover 242 is provided with a second observation window 26, and the second protective cover 242 is sleeved on the outer side of the second quartz tube 241; the second upper cover 243 covers the outside of the other end of the second shield 242, the second upper cover 243 is connected with one end of the second quartz tube 241, the second upper cover 243 is connected with the valve body 22, and the second upper cover 243 is communicated with the low pressure regulating valve 222; the second lower cover 244 is disposed outside one end of the second shield 242, the second lower cover 244 is connected to the other end of the second quartz tube 241, and the second lower cover 244 is connected to one end of the low pressure ball valve 28.
In this embodiment, by communicating one end of the second quartz tube 241 with the low pressure regulating valve 222 and the other end of the second quartz tube 241 with one end of the low pressure ball valve 28, the accommodating effect on the gaseous refrigerant is achieved, and it is convenient to observe whether the refrigerant flows out in the form of the gaseous refrigerant; the second observation window 26 is arranged on the side wall of the second protection cover 242, and the second protection cover 242 is sleeved on the outer side of the second quartz tube 241, so that the protection effect on the second quartz tube 241 is realized, an observation position is reserved, and the flow speed and the form of the gaseous refrigerant are observed; the second upper cover 243 is covered on the outer side of the other end of the second protective cover 242, the second upper cover 243 is connected with one end of the second quartz tube 241, the second upper cover 243 is connected with the valve body 22, and the second upper cover 243 is communicated with the low-pressure regulating valve 222 so as to seal one end of the second quartz tube 241, and the vaporization pressure of the liquid refrigerant is regulated by the low-pressure regulating valve 222, so that the liquid refrigerant is changed into a gaseous refrigerant, the technical effect of vaporization purification is realized, and the aim of cleaning and purifying the refrigerant is fulfilled; through setting up the second lower cover 244 lid in the outside of second protection casing 242 one end, second lower cover 244 is connected with the other end of second quartz capsule 241, and second lower cover 244 is connected with the one end of low pressure ball valve 28 to adjust the speed that gaseous refrigerant discharged into vehicle air conditioner refrigerating system, avoid vehicle air conditioner refrigerating system pressure to increase in the twinkling of an eye, cause the injury for the vehicle.
In an embodiment of the present invention, as shown in fig. 4 and 5, a second aspect of the present invention provides a method for using a visual cleaning tool for a vehicle air conditioner refrigeration system, which is applied to a visual cleaning tool for a vehicle air conditioner refrigeration system as set forth in any one of claims 1 to 6, and the method for using a visual cleaning tool for a vehicle air conditioner refrigeration system includes: s1, connecting a high-pressure quick connector 10 with a high-pressure port of a vehicle air-conditioning refrigeration system, and connecting a low-pressure quick connector 32 with a low-pressure port of the vehicle air-conditioning refrigeration system; s2, starting a vehicle air-conditioning refrigerating system, regulating the temperature of the vehicle air-conditioning refrigerating system to be the lowest, and regulating the air quantity of the vehicle air-conditioning refrigerating system to be the maximum; s3, opening the high-pressure ball valve 14, and enabling the refrigerant in the high-pressure port of the vehicle air conditioning and refrigerating system to flow through the filter 18 in a liquid state, wherein the liquid refrigerant flows into the high-pressure visual refrigerant bottle 16; s4, adjusting the high-pressure regulating valve 221 and the low-pressure regulating valve 222, and observing the sight glass 223 in the middle of the front surface of the valve body 22 until the liquid refrigerant flows into the low-pressure visual refrigerant bottle 24 and becomes a gaseous refrigerant; s5, opening the low-pressure ball valve 28 to enable the refrigerant to be sucked into a low-pressure port of a vehicle air-conditioning refrigeration system in a gaseous state; s6, continuously injecting a gaseous refrigerant into a low-pressure port of the vehicle air-conditioning refrigeration system for not less than ten minutes; s7, closing the high-pressure ball valve 14 until all liquid refrigerant in the high-pressure visual refrigerant bottle 16 enters the low-pressure visual refrigerant bottle 24; s8, closing the high-pressure regulating valve 221 until all the gaseous refrigerant in the low-pressure visual refrigerant bottle 24 enters the low-pressure port of the vehicle air-conditioning refrigerating system; s9, closing the low-pressure regulating valve 222 and closing the low-pressure ball valve 28.
In this embodiment, S1, by connecting the high-pressure quick connector 10 with the high-pressure port of the vehicle air-conditioning refrigeration system and connecting the low-pressure quick connector 32 with the low-pressure port of the vehicle air-conditioning refrigeration system, the visual cleaning tool of the vehicle air-conditioning refrigeration system is communicated with the vehicle air-conditioning refrigeration system, so as to avoid leakage of the refrigerant; s2, starting the vehicle air-conditioning refrigerating system, adjusting the temperature of the vehicle air-conditioning refrigerating system to be the lowest, and adjusting the air quantity of the vehicle air-conditioning refrigerating system to be the maximum, so that the refrigerating capacity of the vehicle air-conditioning refrigerating system is the strongest, and more refrigerants are discharged; s3, opening the high-pressure ball valve 14, and enabling the refrigerant in the high-pressure port of the vehicle air-conditioning refrigeration system to flow through the filter 18 in a liquid state, wherein the liquid refrigerant flows into the high-pressure visual refrigerant bottle 16 so as to filter the liquid refrigerant, so that solid impurities in the liquid refrigerant are removed; s4, through adjusting the high-pressure adjusting valve 221 and the low-pressure adjusting valve 222 and observing the sight glass 223 in the middle of the front surface of the valve body 22 until the liquid refrigerant flows into the low-pressure visual refrigerant bottle 24 and then turns into a gaseous refrigerant, so that the liquid refrigerant turns into the gaseous refrigerant, the technical effect of refrigerant gasification purification is realized, the cleaning of the refrigerant is realized, and the cleanliness of the refrigerant is improved; s5, opening the low-pressure ball valve 28 to enable the refrigerant to be sucked into a low-pressure port of the vehicle air-conditioning refrigerating system in a gaseous state, namely, enabling the clean gaseous refrigerant to flow back into the vehicle air-conditioning refrigerating system again; s6, the gaseous refrigerant is ensured to be continuously injected into a low-pressure port of the vehicle air-conditioning refrigerating system for not less than ten minutes, so that the duration of filtration and gasification purification is ensured, and the refrigerant in the vehicle air-conditioning refrigerating system is ensured to be completely filtered and cleaned, and the cleanliness of the refrigerant is ensured; s7, closing the high-pressure ball valve 14 until all liquid refrigerant in the high-pressure visual refrigerant bottle 16 enters the low-pressure visual refrigerant bottle 24, so as to ensure that the liquid refrigerant in the vehicle air-conditioning refrigerating system does not continuously enter the high-pressure visual refrigerant bottle 16 any more; s8, by closing the high-pressure regulating valve 221 until all the gaseous refrigerant in the low-pressure visual refrigerant bottle 24 enters the low-pressure port of the vehicle air-conditioning refrigerating system, so that all the purified gaseous refrigerant flows back into the vehicle air-conditioning refrigerating system again, and waste and pollution are avoided; and S9, closing the low-pressure regulating valve 222, closing the low-pressure ball valve 28 and completing the cleaning work of the vehicle air-conditioning refrigeration system.
In one embodiment of the present invention, preferably, as shown in fig. 5, the method for using the visual cleaning tool of the vehicle air conditioning refrigeration system further includes: s10, slowly opening the high-pressure ball valve 14 to enable the liquid refrigerant to flow into the high-pressure visual refrigerant bottle 16; s11, closing the high-pressure ball valve 14 until the refrigerant liquid level reaches 2/3 of the height of the first observation window 20; s12, observing the cleanliness of the refrigerant in the high-pressure visual refrigerant bottle 16 and the fusion state of the refrigerant and the refrigerating oil; s13, carrying out corresponding treatment on the refrigerant according to the state of the refrigerant in the high-pressure visual refrigerant bottle 16; s14, closing the high-pressure ball valve 14, the high-pressure regulating valve 221, the low-pressure regulating valve 222 and closing the low-pressure ball valve 28, disconnecting the high-pressure quick connector 10 from the high-pressure port of the vehicle air-conditioning refrigerating system, and disconnecting the low-pressure quick connector 32 from the low-pressure port of the vehicle air-conditioning refrigerating system.
In this embodiment, S10, by slowly opening the high-pressure ball valve 14, the liquid refrigerant flows into the high-pressure visual refrigerant bottle 16, so as to avoid the problems that the mixed liquid of the refrigerant and the refrigerating oil generates too many bubbles, which affects the observation and detection results; s11, closing the high-pressure ball valve 14 until the liquid level of the refrigerant reaches 2/3 of the height of the first observation window 20, so that the mixture of the refrigerant and the frozen oil has a certain height, the observation is convenient, a certain standing time is ensured, and the detection result is accurate; s12, judging the dirt condition of a vehicle air-conditioning refrigeration system and the matching condition of the refrigerant and the type of the refrigerating oil by observing the cleanliness of the refrigerant in the high-pressure visual refrigerant bottle 16 and the fusion state of the refrigerant and the refrigerating oil; s13, performing corresponding treatment on the refrigerant according to the state of the refrigerant in the high-pressure visual refrigerant bottle 16, and performing treatment according to the detection result to avoid the waste of replacing the clean cold refrigerant; s14, closing the high-pressure ball valve 14, the high-pressure regulating valve 221, the low-pressure regulating valve 222 and closing the low-pressure ball valve 28 to ensure that the vehicle air-conditioning refrigerating system is not communicated with the visual cleaning tool of the vehicle air-conditioning refrigerating system, disconnecting the high-pressure quick connector 10 from a high-pressure port of the vehicle air-conditioning refrigerating system, disconnecting the low-pressure quick connector 32 from a low-pressure port of the vehicle air-conditioning refrigerating system, dismantling the visual cleaning tool of the vehicle air-conditioning refrigerating system, and completing cleaning and detection of refrigerants in the vehicle air-conditioning refrigerating system.
In one embodiment of the present invention, preferably, if the cleaning degree of the refrigerant in the high-pressure visual refrigerant bottle 16 is high, the mixing state of the refrigerant and the refrigerant oil is good, and the air-conditioning refrigerating effect is within a reasonable temperature range, the ball valve 42 is opened, and the refrigerant oil or the air-conditioning synergist are supplemented from the filling hose 40; when the refrigerant and the refrigerating oil in the high-pressure visual refrigerant bottle 16 have layering and non-mixing phenomena, the refrigerant and the refrigerating oil are replaced again.
In this embodiment, by opening the ball valve 42 to supplement the refrigerant and the refrigerant oil or the air conditioner synergist from the filling hose 40, a sufficient amount of the refrigerant and the refrigerant oil is ensured, for example, by visualizing the high-pressure in the refrigerant bottle 16 that the refrigerant is clean and the refrigerant oil are in a good dissolved state and the air conditioner refrigerating effect is within a reasonable temperature range; when the layering and the non-miscibility phenomenon of the refrigerant and the refrigerating oil exist in the high-pressure visual refrigerant bottle 16, the refrigerant and the refrigerating oil are replaced again, and the refrigerating effect is ensured.
Specifically, if the cleaning degree of the refrigerant is high, the mixing state of the refrigerant and the refrigerating oil is good, and the refrigerating effect of the air conditioner is in a reasonable temperature range, after the circulating cleaning, the reasonable refrigerant and the refrigerating oil or the air conditioner synergist are supplemented from the filling hose 40 by referring to the values of the ambient temperature and the high and low pressure of the air conditioner. (if the reference value is that the ambient temperature is 30 ℃, the low pressure of the air conditioning system is 0.15-0.25MP, and the high pressure of the air conditioning system is 1.3-1.6 MP).
Specifically, during the cleaning process, the refrigerant, the refrigeration oil and the air conditioner synergist can be supplemented into the vehicle air conditioner refrigerating system through the filling hose 40 according to the previous detection and diagnosis result; the cleaning agent is filled into the vehicle air-conditioning refrigerating system through the filling hose 40 according to the dirt degree of the vehicle air-conditioning refrigerating system, so that the cleaning agent can be better cleaned.
Specifically, after cleaning or detecting, the filling hose 40 can be used to connect with a workshop air source, the low-pressure ball valve 28 and the low-pressure regulating valve 222 are closed, the high-pressure regulating valve 221 and the high-pressure ball valve 14 are opened, the high-pressure quick connector 10 on the high-pressure service hose 12 is removed, and the compressed air is used to discharge impurities and greasy dirt of the filter 18 through the high-pressure service hose 12.
In the description of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present invention, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Visual cleaning tool of vehicle air conditioner refrigerating system, visual cleaning tool of vehicle air conditioner refrigerating system includes high pressure end and low pressure end, the high pressure end of visual cleaning tool of vehicle air conditioner refrigerating system is connected with vehicle air conditioner refrigerating system's high pressure port, vehicle air conditioner refrigerating system visual cleaning tool's low pressure end is connected with vehicle air conditioner refrigerating system's low pressure port, its characterized in that, vehicle air conditioner refrigerating system visual cleaning tool includes:
The high-pressure quick connector is communicated with a high-pressure port of the vehicle air-conditioning refrigeration system;
A high-pressure service hose, wherein one end of the Gao Yafu service hose is communicated with the high-pressure quick connector;
one end of the high-pressure ball valve is communicated with the other end of the Gao Yafu service hose;
The high-pressure visual refrigerant bottle is connected with one end of the high-pressure visual refrigerant bottle and the other end of the high-pressure ball valve;
The filter is embedded into the high-pressure visual refrigerant bottle, the filter is connected with the high-pressure visual refrigerant bottle, and one end of the filter is communicated with the other end of the high-pressure ball valve;
the first observation window is arranged on the side wall of the high-pressure visual refrigerant bottle;
The valve body comprises a high-pressure regulating valve, a low-pressure regulating valve and a sight glass, wherein the low-pressure regulating valve is communicated with the high-pressure regulating valve, the sight glass is positioned between the high-pressure regulating valve and the low-pressure regulating valve, and the high-pressure regulating valve is communicated with the other end of the high-pressure visual refrigerant bottle;
the low-pressure visual refrigerant bottle is characterized in that one end of the low-pressure visual refrigerant bottle is communicated with the low-pressure regulating valve;
The second observation window is arranged on the side wall of the low-pressure visual refrigerant bottle;
One end of the low-pressure ball valve is communicated with the other end of the low-pressure visual refrigerant bottle;
A low pressure service hose, one end of which is communicated with the other end of the low pressure ball valve;
and one end of the low-pressure quick connector is communicated with the other end of the low-pressure service hose, and the other end of the low-pressure quick connector is communicated with a low-pressure port of the vehicle air-conditioning refrigerating system.
2. The visual cleaning tool for a vehicle air conditioning and refrigeration system according to claim 1, the visual cleaning tool of vehicle air conditioner refrigerating system still includes its characterized in that:
The high-pressure gauge is communicated with the high-pressure regulating valve and is connected with the valve body;
The low pressure gauge is communicated with the low pressure regulating valve, and the low pressure gauge is connected with the valve body.
3. The visual cleaning tool for a vehicle air conditioning and refrigeration system according to claim 2, the visual cleaning tool of vehicle air conditioner refrigerating system still includes its characterized in that:
one end of the exhaust valve is communicated with the valve body;
A filling hose, one end of which is communicated with the other end of the exhaust valve;
and the ball valve is communicated with the other end of the filling hose.
4. The visual cleaning tool for a vehicle air conditioning and refrigeration system according to claim 1, the visual cleaning tool of vehicle air conditioner refrigerating system still includes its characterized in that:
one end of the hanging rod is connected with the valve body;
the hook is connected with the other end of the hanging rod.
5. The visual cleaning tool for a vehicle air conditioning and refrigeration system of claim 1, wherein the high pressure visual refrigerant bottle further comprises:
the first quartz tube is wound on the outer side of the filter;
the side wall of the first protective cover is provided with the first observation window, and the first protective cover is sleeved on the outer side of the first quartz tube;
The first lower cover is arranged on the outer side of one end of the first protective cover and connected with one end of the first quartz tube, and the first lower cover is connected with the other end of the high-pressure ball valve;
The first upper cover is arranged on the outer side of the other end of the first protective cover, the first upper cover is connected with the other end of the first quartz tube, the first upper cover is connected with the valve body, and the first upper cover is communicated with the high-pressure regulating valve.
6. The visual cleaning tool for a vehicle air conditioning and refrigeration system of claim 5, wherein said low pressure visual refrigerant bottle further comprises:
one end of the second quartz tube is communicated with the low-pressure regulating valve, and the other end of the second quartz tube is communicated with one end of the low-pressure ball valve;
The side wall of the second protective cover is provided with the second observation window, and the second protective cover is sleeved on the outer side of the second quartz tube;
The second upper cover is arranged on the outer side of the other end of the second protective cover and connected with one end of the second quartz tube, the second upper cover is connected with the valve body, and the second upper cover is communicated with the low-pressure regulating valve;
The second lower cover is arranged on the outer side of one end of the second protective cover, the second lower cover is connected with the other end of the second quartz tube, and the second lower cover is connected with one end of the low-pressure ball valve.
7. A method for using the visual cleaning tool of the vehicle air conditioner refrigerating system, which is characterized by being applied to the visual cleaning tool of the vehicle air conditioner refrigerating system according to any one of claims 1 to 6, and comprising the following steps:
S1, connecting a high-pressure quick connector with a high-pressure port of a vehicle air-conditioning refrigeration system, and connecting a low-pressure quick connector with a low-pressure port of the vehicle air-conditioning refrigeration system;
s2, starting a vehicle air-conditioning refrigerating system, regulating the temperature of the vehicle air-conditioning refrigerating system to be the lowest, and regulating the air quantity of the vehicle air-conditioning refrigerating system to be the maximum;
S3, opening the high-pressure ball valve, and enabling the liquid refrigerant in the high-pressure port of the vehicle air conditioner refrigerating system to flow into the high-pressure visual refrigerant bottle after flowing through the filter in a liquid state;
s4, adjusting a high-pressure regulating valve and a low-pressure regulating valve, and observing a sight glass in the middle of the front surface of the valve body until the liquid refrigerant flows into a low-pressure visual refrigerant bottle and then becomes a gaseous refrigerant;
S5, opening a low-pressure ball valve to enable the refrigerant to be sucked into a low-pressure port of a vehicle air-conditioning refrigeration system in a gaseous state;
s6, continuously injecting a gaseous refrigerant into a low-pressure port of the vehicle air-conditioning refrigeration system for not less than ten minutes;
S7, closing the high-pressure ball valve until all liquid refrigerant in the high-pressure visual refrigerant bottle enters the low-pressure visual refrigerant bottle;
S8, closing the high-pressure regulating valve until all gaseous refrigerants in the low-pressure visual refrigerant bottle enter a low-pressure port of the vehicle air-conditioning refrigerating system;
s9, closing the low-pressure regulating valve and closing the low-pressure ball valve.
8. The method for using a visual cleaning tool for a vehicle air conditioning and refrigerating system according to claim 7, the visual cleaning tool for the vehicle air conditioner refrigerating system is characterized in that the using method of the visual cleaning tool for the vehicle air conditioner refrigerating system further comprises the following steps:
s10, slowly opening a high-pressure ball valve to enable liquid refrigerant to flow into a high-pressure visual refrigerant bottle;
S11, closing the high-pressure ball valve until the liquid level of the refrigerant reaches 2/3 of the height of the first observation window;
S12, observing the cleanliness of the refrigerant in the high-pressure visual refrigerant bottle and the fusion state of the refrigerant and the refrigerating oil;
s13, carrying out corresponding treatment on the refrigerant according to the state of the refrigerant in the high-pressure visual refrigerant bottle;
s14, closing the high-pressure ball valve, the high-pressure regulating valve, the low-pressure regulating valve and the low-pressure ball valve, disconnecting the high-pressure quick connector from the high-pressure port of the vehicle air-conditioning refrigerating system, and disconnecting the low-pressure quick connector from the low-pressure port of the vehicle air-conditioning refrigerating system.
9. The method of using a visual cleaning tool for a vehicle air conditioning and refrigeration system of claim 8, wherein:
If the cleaning degree of the refrigerant in the high-pressure visual refrigerant bottle is high, the mixing state of the refrigerant and the refrigerating oil is good, the refrigerating effect of the air conditioner is in a reasonable temperature range, the ball valve is opened, and the refrigerant and the refrigerating oil or the air conditioner synergist are supplemented from the filling hose;
When the layering and the non-mixing phenomenon of the refrigerant and the refrigerating oil exist in the high-pressure visual refrigerant bottle, the refrigerant and the refrigerating oil are replaced again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011516500.2A CN112539582B (en) | 2020-12-21 | 2020-12-21 | Vehicle air conditioning refrigeration system visual cleaning tool and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011516500.2A CN112539582B (en) | 2020-12-21 | 2020-12-21 | Vehicle air conditioning refrigeration system visual cleaning tool and use method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214095051U (en) * | 2020-12-21 | 2021-08-31 | 沈阳中大环新制冷技术有限公司 | Visual cleaning tool for vehicle air conditioner refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3785163A (en) * | 1971-09-13 | 1974-01-15 | Watsco Inc | Refrigerant charging means and method |
| US4110998A (en) * | 1977-05-27 | 1978-09-05 | Charles Owen | Apparatus for detecting and removing contaminants from a refrigeration system |
| CN1079937C (en) * | 1993-11-08 | 2002-02-27 | 郑荣源 | Refrigerant recovery and purification system and method thereof |
| US20040083750A1 (en) * | 2002-04-15 | 2004-05-06 | Fajardo Jose Carlos | Multiple charger for refrigerant gas |
| WO2007128127A1 (en) * | 2006-05-04 | 2007-11-15 | Brasscorp Limited | Inspection port |
| CN102032729A (en) * | 2009-09-27 | 2011-04-27 | 乐金电子(天津)电器有限公司 | Level glass structure of air conditioning refrigerant filter |
| DE202011002986U1 (en) * | 2011-02-21 | 2014-06-06 | Dometic Sweden Ab | Service device for vehicle air conditioning systems |
| KR101999391B1 (en) * | 2018-10-29 | 2019-07-11 | (주)범석엔지니어링 | refrigerant pipe cleaning equipment and cleaning method using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214095051U (en) * | 2020-12-21 | 2021-08-31 | 沈阳中大环新制冷技术有限公司 | Visual cleaning tool for vehicle air conditioner refrigeration system |
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