CN103143539B - A kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning - Google Patents
A kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning Download PDFInfo
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- CN103143539B CN103143539B CN201310050765.1A CN201310050765A CN103143539B CN 103143539 B CN103143539 B CN 103143539B CN 201310050765 A CN201310050765 A CN 201310050765A CN 103143539 B CN103143539 B CN 103143539B
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Abstract
The invention provides a kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning, described system comprises the first pipeline, the second pipeline, reclaims filling device and controller; Described first pipeline one end fills to hold with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the first magnetic valve, described second pipeline one end fills to hold with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the second magnetic valve, and described first pipeline, recovery filling device and the second pipeline form cold-producing medium first path; Described controller and first, second magnetic valve and reclaim filling device and be connected, for controlling first, second magnetic valve and reclaiming the operation of filling device.Good effect of the present invention is, both reduces operation easier, saves man-hour, reduces again the purchase cost of machine, make Maintenance Man just can carry out the work of simple air-conditioning maintenance clean in daily air-conditioning refrigerant maintaining process.
Description
Technical field
The present invention relates to air conditioning for automobiles service equipment technical field, particularly relate to a kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning.
Background technology
In existing technology, refrigerant recovery charging machine and cleaning machine for air conditioner are independently two kinds of equipment.Cleaning machine for air conditioner needs to use special cleaning fluid independently to clean automotive air-conditioning system, and the function that refrigerant recovery charging machine has been merely able to refrigerant-recovery and has filled.
The shortcoming of said apparatus is: be first inconvenient, carry out air conditioning for automobiles cleaning must carry out separately, need to carry out special training on operation, the general operation easier of existing professional cleaning machine is larger on the market, secondly, the inconvenience of this operation and the character that must operate separately cause maintenance man-hours to rise, the namely increase of cost.In addition, current cleaning machine price is more expensive, and the price of cleaning agent is also partially expensive, and is substantially all import.Because the costliness of cost, maintenance company is seldom ready to buy a cleaning machine for air conditioner separately, if need cleaning just to need to spend the more time to be pulled down by all air supply rates and clean one by one, majority of case Maintenance Man in order to follow the line of least resistance not to cleaning air conditioner.
And in fact many times daily air-conditioning maintenance can use other working medium simply to clean impurity, the cold-producing medium of such as non-freon.But current refrigerant recovery charging machine cannot complete cleaning function, because it cannot accomplish to be formed with automotive air-conditioning system a large refrigerant circulation.Its internal duct the refrigerant mixed that can cause filling into and releasing is set, do not reach the effect of cleaning.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning, it can reduce operation easier, saves man-hour, reduces the purchase cost of machine.
In order to solve the problem, a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning, comprises the first pipeline, the second pipeline, reclaims filling device and controller; Described first pipeline one end fills to hold with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the first magnetic valve, described second pipeline one end fills to hold with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the second magnetic valve, and described first pipeline, recovery filling device and the second pipeline form cold-producing medium first path; Described controller and first, second magnetic valve and reclaim filling device and be connected, for controlling first, second magnetic valve and reclaiming the operation of filling device.
Further, described recovery filling device comprises clarifier, compressor and work tank, and described clarifier is connected with described compressor, and described compressor is connected with described work tank, described first pipeline is connected with described clarifier, and described second pipeline is connected with described work tank.
Further, described recovery filling device comprises vacuum extractor further, oiling device, discharge equipment and fluorescer filling device, the low pressure of described vacuum extractor and automotive air-conditioning system fills hold and filled end of high pressure is communicated with, for carrying out vacuum pumping to automotive air-conditioning system, described oiling device fills to hold with the high pressure of automotive air-conditioning system and is communicated with, for injecting lubricating oil in automotive air-conditioning system, described discharge equipment is communicated with clarifier, for isolated for clarifier lubricating oil is discharged, described fluorescer filling device fills to hold with the high pressure of automotive air-conditioning system and is communicated with, for fluorescer is injected automotive air-conditioning system inside.
Further, also comprise the 3rd pipeline and the 4th pipeline, described 3rd pipeline one end fills to hold with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the 3rd magnetic valve, described 4th pipeline one end fills to hold with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the 4th magnetic valve, described 3rd pipeline, recovery filling device and the 4th pipeline form cold-producing medium circulation alternate path, described controller and the 3rd, the 4th magnetic valve are connected, for control the 3rd, the 4th magnetic valve and operation.
Further, described recovery filling device comprises clarifier, compressor and work tank, and described clarifier is connected with described compressor, and described compressor is connected with described work tank, described 4th pipeline is connected with described clarifier, and described 3rd pipeline is connected with described work tank.
Further, manufacture described first pipeline, the material of the second pipeline is copper.
Further, also comprise the first nipple and the second nipple, when using described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning to carry out automotive air-conditioning system cleaning, described first nipple two ends are connected respectively to the compressor two ends of automotive air-conditioning system, make cold-producing medium not by the compressor of automotive air-conditioning system, described second nipple two ends are connected respectively to the expansion valve two ends of automotive air-conditioning system, make cold-producing medium not by the expansion valve of automotive air-conditioning system, with the compressor and the expansion valve that prevent impurity from blocking automotive air-conditioning system.
Further, also comprise pressure sensor, when described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning is connected with automotive air-conditioning system, described pressure sensor is connected with automotive air-conditioning system, in order to detect automotive air-conditioning system internal refrigeration storage dosage, described pressure sensor by signal transmission to controller.
The present invention also provides a kind of and uses a kind of cold-producing medium first path utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning to carry out the method for automotive air-conditioning system internal washing, comprises the steps:
(1) controller controls the second magnetic valve and starts, and reclaims cold-producing medium in filling device after purification and fills end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside;
(2) controller controls the first magnetic valve and reclaims filling device to start, and cold-producing medium is extracted out by from automotive air-conditioning system inside, and the low pressure through automotive air-conditioning system fills end and enters the first pipeline, and now, cold-producing medium contains impurity;
(3) cold-producing medium enters through the first pipeline and reclaims Recovery Purifying in filling device;
(4) controller controls the second magnetic valve and starts, and reclaim cold-producing medium in filling device after purification and fill end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter;
(5) above-mentioned steps (2) ~ step (4) is repeated, until the inner impurity of automotive air-conditioning system is removed.
The present invention also provides a kind of and uses a kind of cold-producing medium alternate path utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning to carry out the method for automotive air-conditioning system internal washing, comprises the steps:
(1) controller controls the 3rd magnetic valve and starts, and reclaims cold-producing medium in filling device after purification and fills end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside;
(2) controller controls the 4th magnetic valve and reclaims filling device to start, and cold-producing medium is extracted out by from automotive air-conditioning system inside, and the high pressure through automotive air-conditioning system fills end and enters the 4th pipeline, and now, cold-producing medium contains impurity;
(3) cold-producing medium enters through the 4th pipeline and reclaims Recovery Purifying in filling device;
(4) controller controls the 3rd magnetic valve and starts, and reclaim cold-producing medium in filling device after purification and fill end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter;
(5) above-mentioned steps (2) ~ step (4) is repeated, until the inner impurity of automotive air-conditioning system is removed.
The invention has the advantages that, in conjunction with the common feature of refrigerant recovery charging machine and cleaning machine, be integrated into a kind of system comprising two kinds of functions.Namely reduce operation easier, save man-hour, again reduce the purchase cost of machine, make Maintenance Man just can carry out the work of simple air-conditioning maintenance clean in daily air-conditioning refrigerant maintaining process.
Accompanying drawing explanation
Figure 1 shows that a kind of structural representation sketch utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning of the present invention;
Figure 2 shows that the method flow diagram using a kind of cold-producing medium first path utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning to carry out automotive air-conditioning system internal washing.
Reference numeral represents respectively:
1, the first pipeline; 2, the second pipeline; 3, the 3rd pipeline, 4, the 4th pipeline; 5, filling apparatus is reclaimed; 6, controller; 7, low pressure fills end; 8, high pressure fills end; 10, clarifier; 11, compressor; 12, work tank; 13, the first nipple; 14, the second nipple; 15, compressor of automobile air-conditioning system; 16, automotive air-conditioning system expansion valve; S1, the first magnetic valve; S2, the second magnetic valve; S3, the 3rd magnetic valve; S4, the 4th magnetic valve; P1, pressure sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of detailed description of the invention utilizing cold-producing medium to carry out the system and method for pipelines of automobile air conditioner cleaning provided by the invention is elaborated.
Figure 1 shows that a kind of structural representation sketch utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning of the present invention.Shown in Figure 1, a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning comprises the first pipeline 1, second pipeline 2, reclaims filling device 5 and controller 6.
Described first pipeline 1 one end fills end 7 with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device 5 by the first magnetic valve S1, described second pipeline 2 one end fills end 8 with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device 5 by the second magnetic valve S2, and described first pipeline 1, recovery filling device 5 and the second pipeline 2 form cold-producing medium first path.
Described controller 6 and first, second magnetic valve S1, S2 and reclaim filling device 5 and be connected, for controlling first, second magnetic valve S1, S2 and reclaiming the operation of filling device 5.
When needs cleaning automotive air-conditioning system is inner, controller 6 controls the second magnetic valve S2 and opens, cold-producing medium fills end 8 from the second pipeline 2 through the high pressure of automotive air-conditioning system and enters automotive air-conditioning system inside, circulate in the agent of automotive air-conditioning system internal refrigeration storage, low pressure through automotive air-conditioning system fills end 7 and transmits to the first pipeline 1, now, if automotive air-conditioning system did not carry out cleaning, then the cold-producing medium exported from automotive air-conditioning system contained impurity.Controller 6 controls the first magnetic valve S1 and opens, and cold-producing medium transmits to recovery filling device 5 by the first pipeline 1, and cold-producing medium is cleaned in recovery filling device 5, and the cold-producing medium be cleaned can fill through the second pipeline 2 in automotive air-conditioning system.In this cold-producing medium first path, what a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning of the present invention adopted is that high-pressure side fills, the method for the cleaning automotive air-conditioning system inside of low-pressure end recovery.
Further, described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning also comprises the 3rd pipeline 3 and the 4th pipeline 4, described 3rd pipeline 3 one end fills end 7 with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device 5 by the 3rd magnetic valve S3, described 4th pipeline 4 one end fills end 8 with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device 5 by the 4th magnetic valve S4, and described 3rd pipeline 3, recovery filling device 5 and the 4th pipeline 4 form cold-producing medium alternate path.
When breaking down when cold-producing medium first path or need according to the actual conditions of automotive air-conditioning system to use cold-producing medium alternate path to clean automotive air-conditioning system, controller 6 controls the 3rd magnetic valve S3 and opens, cold-producing medium fills end 7 from the 3rd pipeline 3 through the low pressure of automotive air-conditioning system and enters automotive air-conditioning system inside, circulate in the agent of automotive air-conditioning system internal refrigeration storage, high pressure through automotive air-conditioning system fills end 8 and transmits to the 4th pipeline 4, now, if automotive air-conditioning system did not carry out cleaning, then the cold-producing medium exported from automotive air-conditioning system contained impurity.Controller 6 controls the 4th magnetic valve S4 and opens, and cold-producing medium transmits to recovery filling device 5 by the 4th pipeline 4, and cold-producing medium is cleaned in recovery filling device 5, and the cold-producing medium be cleaned can fill through the 3rd pipeline 3 in automotive air-conditioning system.In this cold-producing medium alternate path, what a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning of the present invention adopted is that low-pressure end fills, the method for the cleaning automotive air-conditioning system inside of high-pressure side recovery.
Further, described recovery filling device 5 comprises clarifier 10, compressor 11 and work tank 12, described clarifier 10 is connected with described compressor 11, described compressor 11 is connected with described work tank 12, described first pipeline 1 is connected with described clarifier 10, described second pipeline 2 is connected with described work tank 12, and described 4th pipeline 4 is connected with described clarifier 10, and described 3rd pipeline 3 is connected with described work tank 12.
In the present embodiment, described clarifier 10 can be oil eliminator, and described oil eliminator is used for cold-producing medium and lubricating oil separation, thus obtains pure cold-producing medium, realizes the purification of cold-producing medium.From the first pipeline, transmit the cold-producing medium come is the state of gas-liquid two-phase, after clarifier 10, described cold-producing medium becomes gaseous state, the cold-producing medium of gaseous state enters compressor 11, compressor 11 makes cold-producing medium become high-pressure gaseous from low-pressure gaseous, the cold-producing medium of the high-pressure gaseous transmitting out from compressor 11, through heat exchange, becomes liquid state, is stored in work tank 12.Described heat exchange can be realized by heat exchanger, is such as arranged on the heat exchanger (not indicating in accompanying drawing) between compressor 11 and work tank 12.Further, can also arrange oil eliminator (not indicating in accompanying drawing) between compressor 11 and work tank 12, the lubricating oil that cold-producing medium is taken out of from compressor can be separated with cold-producing medium by described oil eliminator, purifies cold-producing medium further.Be stored in cold-producing medium in work tank 12 for filling in automotive air-conditioning system through the second pipeline 2 or the 3rd pipeline 3.
Further, described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning also comprises the first nipple 13 and the second nipple 14.When using described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning to carry out automotive air-conditioning system cleaning, described first nipple 13 two ends are connected respectively to compressor 15 two ends of automotive air-conditioning system, make cold-producing medium not by the compressor of automotive air-conditioning system, described second nipple 14 two ends are connected respectively to expansion valve 16 two ends of automotive air-conditioning system.When cleaning, cold-producing medium directly passes through from the first nipple 13 and the second nipple 14, and cold-producing medium not by the expansion valve 16 of automotive air-conditioning system, thus prevents compressor 15 and the expansion valve 16 of the impurity blocking automotive air-conditioning system in cold-producing medium.
Further, described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning also comprises pressure sensor P1, when described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning is connected with automotive air-conditioning system, described pressure sensor P1 and the low pressure of automotive air-conditioning system fill end 7 and are connected, in order to detect automotive air-conditioning system internal refrigeration storage dosage, described pressure sensor by the pressure signal transmission that detects to controller 6.
One first pressure set points is previously stored with in controller 6, if pressure sensor P1 transmits the pressure value signal come be less than the first pressure set points, then illustrate that the refrigerant amount of automotive air-conditioning system inside is little or do not have, then illustrate that cold-producing medium has all been retracted in work tank 12, then described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning stops the recovery of cold-producing medium.If pressure sensor P1 transmits the pressure value signal come be greater than the first pressure set points, the amount of then carrying out cold-producing medium can reclaim, then described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning proceeds the recovery of cold-producing medium, until pressure sensor P1 transmits the pressure value signal come be less than the first pressure set points.
Described first force value prestores in the controller, in the present embodiment, described first force value is that 0psi(is identical with atmospheric pressure), if the force value that pressure sensor P1 detects is less than or equal to the first pressure set points 0psi, then illustrate that cold-producing medium is little or do not have, then controller 6 controls compressor 11 and the first magnetic valve S1 closes, if the force value that pressure sensor P1 detects is higher than the first pressure set points 0psi, then proceed the recovery of cold-producing medium, until detect that force value that pressure sensor P1 detects is less than or equal to the first pressure set points 0psi.
Further, described recovery filling device 5 comprises vacuum extractor, oiling device, discharge equipment and fluorescer filling device (being sign in accompanying drawing) further, the low pressure of described vacuum extractor and automotive air-conditioning system fills hold and filled end of high pressure is communicated with by magnetic valve, for carrying out vacuum pumping to automotive air-conditioning system, when automotive air-conditioning system needs to vacuumize, controller 6 Controlling solenoid valve is opened, and carries out vacuum pumping.Described oiling device is filled to hold with the high pressure of automotive air-conditioning system and is communicated with by magnetic valve, for injecting lubricating oil in automotive air-conditioning system, but when automotive air-conditioning system needs to inject lubricating oil, controller 6 Controlling solenoid valve is opened, and injects lubricating oil in automotive air-conditioning system.Described discharge equipment is communicated with by magnetic valve with clarifier, and controller can control this magnetic valve and open, for being discharged by isolated for clarifier lubricating oil.Whether described fluorescer filling device is filled to hold with the high pressure of automotive air-conditioning system and is communicated with by magnetic valve, and controller 6 can control this magnetic valve and open, for fluorescer is injected automotive air-conditioning system inside, detect automotive air-conditioning system and leak.
A kind of pipeline utilizing cold-producing medium to carry out being communicated with between all parts in the system of pipelines of automobile air conditioner cleaning of the present invention is preferably copper pipe, and can prevent pipeline from corroding like this, described cold-producing medium can select fluorine-free cold-producing medium.
The present invention also provides a kind of and uses a kind of cold-producing medium first path utilizing cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning to carry out the method for automotive air-conditioning system internal washing, and the method is that high-pressure side fills, and low-pressure end reclaims.Shown in Figure 2, described cleaning method comprises the steps:
Step S20: controller controls the second magnetic valve and starts, reclaims cold-producing medium in filling device after purification and fills end by the second pipeline through the high pressure of automotive air-conditioning system and enter automotive air-conditioning system inside.
Cold-producing medium after described purification is stored in the work tank of recovery filling device, and the second magnetic valve is opened, then the pure cold-producing medium in work tank is extracted, through the high pressure filled end of the second Pipe transfer to automotive air-conditioning system.Pure cold-producing medium fills after end enters automotive air-conditioning system inside from the high pressure of automotive air-conditioning system, and cold-producing medium fills end from the low pressure of automotive air-conditioning system and transmits out after respectively through the condenser of automotive air-conditioning system, evaporimeter and the first nipple and the second nipple.Cold-producing medium, not by expansion valve and the compressor of automotive air-conditioning system, is compressor and the expansion valve in order to prevent the impurity blocking automotive air-conditioning system in cold-producing medium.
Step S21: controller controls the first magnetic valve and reclaim filling device to start, and cold-producing medium is extracted out by from automotive air-conditioning system inside, and the low pressure through automotive air-conditioning system fills end and enters the first pipeline, and now, cold-producing medium contains impurity.
After controller controls the first magnetic valve and the compressor reclaimed in filling device is opened, be partially formed a pressure reduction, thus cold-producing medium can be extracted by from automotive air-conditioning system inside.
Step S22: cold-producing medium enters through the first pipeline and reclaims Recovery Purifying in filling device.
The cold-producing medium extracted from automotive air-conditioning system is the cold-producing medium containing impurity, and through reclaiming the purification of the clarifier in filling device, become pure cold-producing medium free from foreign meter, now, cold-producing medium is gaseous state.The compressor reclaimed in filling device transmits next cold-producing medium from low-pressure gaseous boil down to high-pressure gaseous by from clarifier.The cold-producing medium of the high-pressure gaseous transmitting out from compressor, through heat exchange, becomes liquid state, is stored in work tank.Described heat exchange can be realized by heat exchanger, is such as arranged on the heat exchanger between compressor and work tank.Can also arrange oil eliminator between compressor and work tank, the lubricating oil that cold-producing medium is taken out of from compressor can be separated with cold-producing medium by described oil eliminator, purifies cold-producing medium further.Be stored in cold-producing medium in work tank 12 for filling in automotive air-conditioning system through the second pipeline 2 or the 3rd pipeline 3.
Step S23: controller controls the second magnetic valve and starts, reclaim cold-producing medium in filling device after purification and fill end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter.
Be stored in pure cold-producing medium in work tank to fill end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, circulate in automotive air-conditioning system inside.
Step S24: repeat above-mentioned steps S21 ~ step S23, until the inner impurity of automotive air-conditioning system is removed.
Repeat above-mentioned steps S21 ~ step S23, until the inner impurity of automotive air-conditioning system is removed, whether the inner impurity of described air conditioning for automobiles is removed and can be decided by the Users panel setup times at controller, when reaching Preset Time, system stops cleaning automatically, and pure refrigerant charging is injected automotive air-conditioning system, meet the demand of automotive air-conditioning system.
Further, the method using cold-producing medium alternate path to carry out cleaning with using cold-producing medium first path to clean automotive air-conditioning system to automotive air-conditioning system is identical, and the method is that low-pressure end fills, and high-pressure side reclaims, detail repeats no more, and concrete steps are as follows:
(1) controller controls the 3rd magnetic valve and starts, and reclaims cold-producing medium in filling device after purification and fills end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside;
(2) controller controls the 4th magnetic valve and reclaims filling device to start, and cold-producing medium is extracted out by from automotive air-conditioning system inside, and the high pressure through automotive air-conditioning system fills end and enters the 4th pipeline, and now, cold-producing medium contains impurity;
(3) cold-producing medium enters through the 4th pipeline and reclaims Recovery Purifying in filling device;
(4) controller controls the 3rd magnetic valve and starts, and reclaim cold-producing medium in filling device after purification and fill end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter;
(5) above-mentioned steps (2) ~ step (4) is repeated, until the inner impurity of automotive air-conditioning system is removed.
Further, be previously stored with one first pressure set points in the controller, if the pressure value signal that pressure sensor transmission comes is less than the first pressure set points, then illustrate that the refrigerant amount of automotive air-conditioning system inside is little or do not have, then illustrate that cold-producing medium has all been retracted in work tank, then described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning stops the recovery of cold-producing medium.If the pressure value signal that pressure sensor transmission comes is greater than the first pressure set points, the amount of then carrying out cold-producing medium can carry out reclaiming clean, then described a kind of system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning proceeds the reclaiming clean of cold-producing medium, until the pressure value signal that pressure sensor transmission comes is less than the first pressure set points.At the end of automobile washing process, whether the cold-producing medium that controller also can judge in automotive air-conditioning system according to the force value of pressure sensor all reclaims, after all reclaiming, pure cold-producing medium can be filled in automotive air-conditioning system, to meet the demand of automotive air-conditioning system to cold-producing medium.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. utilize cold-producing medium to carry out a system for pipelines of automobile air conditioner cleaning, it is characterized in that, comprise the first pipeline, the second pipeline, reclaim filling device and controller; Described first pipeline one end fills to hold with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the first magnetic valve, described second pipeline one end fills to hold with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the second magnetic valve, and described first pipeline, recovery filling device and the second pipeline form cold-producing medium first path; Described controller and first, second magnetic valve and reclaim filling device and be connected, for controlling first, second magnetic valve and reclaiming the operation of filling device; Further comprise the 3rd pipeline and the 4th pipeline, described 3rd pipeline one end fills to hold with the low pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the 3rd magnetic valve, described 4th pipeline one end fills to hold with the high pressure of automotive air-conditioning system and is connected, the other end is connected with described recovery filling device by the 4th magnetic valve, described 3rd pipeline, recovery filling device and the 4th pipeline form cold-producing medium circulation alternate path, described controller and the 3rd, the 4th magnetic valve are connected, for controlling the operation of the 3rd, the 4th magnetic valve; Also comprise the first nipple and the second nipple, when using the described system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning to carry out automotive air-conditioning system cleaning, described first nipple two ends are connected respectively to the compressor two ends of automotive air-conditioning system, make cold-producing medium not by the compressor of automotive air-conditioning system, described second nipple two ends are connected respectively to the expansion valve two ends of automotive air-conditioning system, make cold-producing medium not by the expansion valve of automotive air-conditioning system, with the compressor and the expansion valve that prevent impurity from blocking automotive air-conditioning system.
2. the system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning according to claim 1, it is characterized in that, described recovery filling device comprises clarifier, compressor and work tank, described clarifier is connected with described compressor, described compressor is connected with described work tank, described first pipeline is connected with described clarifier, and described second pipeline is connected with described work tank.
3. the system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning according to claim 2, it is characterized in that, described recovery filling device comprises vacuum extractor further, oiling device, discharge equipment and fluorescer filling device, the low pressure of described vacuum extractor and automotive air-conditioning system fills hold and filled end of high pressure is communicated with, for carrying out vacuum pumping to automotive air-conditioning system, described oiling device fills to hold with the high pressure of automotive air-conditioning system and is communicated with, for injecting lubricating oil in automotive air-conditioning system, described discharge equipment is communicated with clarifier, for isolated for clarifier lubricating oil is discharged, described fluorescer filling device fills to hold with the high pressure of automotive air-conditioning system and is communicated with, for fluorescer is injected automotive air-conditioning system inside.
4. the system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning according to claim 1, it is characterized in that, described recovery filling device comprises clarifier, compressor and work tank, described clarifier is connected with described compressor, described compressor is connected with described work tank, described 4th pipeline is connected with described clarifier, and described 3rd pipeline is connected with described work tank.
5. the system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning according to claim 1, is characterized in that, manufactures described first pipeline, the material of the second pipeline is copper.
6. the system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning according to claim 1, it is characterized in that, also comprise pressure sensor, when the described system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning is connected with automotive air-conditioning system, described pressure sensor is connected with automotive air-conditioning system, in order to detect automotive air-conditioning system internal refrigeration storage dosage, described pressure sensor by signal transmission to controller.
7. cold-producing medium first path that a use utilizes cold-producing medium to carry out the system of pipelines of automobile air conditioner cleaning carries out the method for automotive air-conditioning system internal washing, comprise the steps: that (1) controller controls the second magnetic valve and starts, reclaim cold-producing medium in filling device after purification and fill end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, (2) controller controls the first magnetic valve and reclaims filling device to start, and cold-producing medium is extracted out by from automotive air-conditioning system inside, and the low pressure through automotive air-conditioning system fills end and enters the first pipeline, and now, cold-producing medium contains impurity, (3) cold-producing medium enters through the first pipeline and reclaims Recovery Purifying in filling device, (4) controller controls the second magnetic valve and starts, and reclaim cold-producing medium in filling device after purification and fill end by the high pressure of the second pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter, (5) above-mentioned steps (2) ~ step (4) is repeated, until the inner impurity of automotive air-conditioning system is removed, alternate path is utilized to carry out the method for automotive air-conditioning system internal washing, comprise the steps: that (a) controller controls the 3rd magnetic valve and starts, reclaim cold-producing medium in filling device after purification and fill end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, b () controller controls the 4th magnetic valve and reclaims filling device to start, cold-producing medium is extracted out by from automotive air-conditioning system inside, and the high pressure through automotive air-conditioning system fills end and enters the 4th pipeline, and now, cold-producing medium contains impurity, c () cold-producing medium enters through the 4th pipeline and reclaims Recovery Purifying in filling device, d () controller controls the 3rd magnetic valve and starts, reclaim cold-producing medium in filling device after purification and fill end by the low pressure of the 3rd pipeline and automotive air-conditioning system and enter automotive air-conditioning system inside, now, cold-producing medium is free from foreign meter, e () repeats above-mentioned steps (b) ~ step (d), until the inner impurity of automotive air-conditioning system is removed, the described system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning also comprises the first nipple and the second nipple, when using the described system utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning to carry out automotive air-conditioning system cleaning, described first nipple two ends are connected respectively to the compressor two ends of automotive air-conditioning system, make cold-producing medium not by the compressor of automotive air-conditioning system, described second nipple two ends are connected respectively to the expansion valve two ends of automotive air-conditioning system, make cold-producing medium not by the expansion valve of automotive air-conditioning system, with the compressor and the expansion valve that prevent impurity from blocking automotive air-conditioning system.
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| CN201310050765.1A CN103143539B (en) | 2013-02-08 | 2013-02-08 | A kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning |
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| CN201310050765.1A CN103143539B (en) | 2013-02-08 | 2013-02-08 | A kind of system and method utilizing cold-producing medium to carry out pipelines of automobile air conditioner cleaning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103506353B (en) * | 2013-07-01 | 2018-11-20 | 蒋书印 | Automobile air conditioner system cleaning machine |
| EP3121039B1 (en) * | 2015-07-24 | 2019-03-06 | Mahle Aftermarket Italy S.p.A. | Method for transferring coolant from a loading unit to an air conditioning system |
| US10054345B2 (en) | 2015-07-28 | 2018-08-21 | Mahle Aftermarket Italy S.P.A. | Method for transferring coolant from a loading unit to an air conditioning system |
| CN110748782A (en) * | 2018-07-23 | 2020-02-04 | 阚有波 | Method for cleaning and replacing air conditioner compressor oil |
| CN109159762B (en) * | 2018-08-28 | 2020-06-09 | 曹锋 | Device and method for cleaning automobile air conditioner by using tetrafluoroethane |
| CN109764578A (en) * | 2019-02-01 | 2019-05-17 | 深圳市泰路科技有限公司 | The compressor oil recovery system and method for air-conditioning system |
| CN112378048A (en) * | 2020-10-21 | 2021-02-19 | 浙江飞越机电有限公司 | Intelligent maintenance management system and method for refrigeration equipment |
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