CN107120880A - Refrigerant purification device - Google Patents
Refrigerant purification device Download PDFInfo
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- CN107120880A CN107120880A CN201710448607.XA CN201710448607A CN107120880A CN 107120880 A CN107120880 A CN 107120880A CN 201710448607 A CN201710448607 A CN 201710448607A CN 107120880 A CN107120880 A CN 107120880A
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- Prior art keywords
- heat exchanger
- refrigerant
- oil
- purification device
- compressor
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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
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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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
- F25B43/006—Accumulators
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a refrigerant purification device, which is characterized in that a liquid inlet pipe, a first heat exchanger, a compressor, an oil separator, a second heat exchanger and a liquid outlet pipe are sequentially communicated, and a support frame is used for bearing other parts of the purification device and enabling the purification device to move; the liquid inlet pipe is provided with a throttling device and is used for introducing a refrigerant into the purification device; the liquid outlet pipe is used for leading out the refrigerant from the purification device. The liquid inlet pipe, the first heat exchanger, the compressor, the oil separator, the second heat exchanger, the liquid outlet pipe and the support frame of the refrigerant purification device are sequentially communicated to form a refrigerant purification flow path and are integrated on the support frame, the refrigerant purification device is simple in structure, can be separated from a refrigeration system to independently operate, can be moved and used according to different purification scenes, and improves the use convenience of the purification device.
Description
Technical Field
The invention relates to the field of refrigerant purification, in particular to a refrigerant purification device.
Background
The refrigerant used in production experiments or engineering maintenance in the refrigeration and air-conditioning industry often cannot be used continuously because the oil content exceeds the standard, and lubricating oil can be mixed into the refrigerant after the air conditioner runs for a period of time, so that the refrigerant cannot be used continuously. The former wastes resources and needs storage facilities and the like, so that the cost is high; the latter is also resource-wasting and causes environmental pollution.
The traditional refrigerant purification generally depends on the operation of a refrigeration system, and the structure is often very complex, so that the cost of the refrigeration system is higher. Moreover, the refrigerant purification device is not easy to move and cannot be conveniently applied to different purification scenes.
Disclosure of Invention
Therefore, a refrigerant purification device is needed to be provided for solving the problems that the traditional refrigerant purification relies on a refrigeration system that the operation structure is complex and the movement is inconvenient.
The invention provides a refrigerant purification device, which comprises a liquid inlet pipe, a first heat exchanger, a compressor, an oil separator, a second heat exchanger, a liquid outlet pipe and a support frame, wherein the liquid inlet pipe, the first heat exchanger, the compressor, the oil separator, the second heat exchanger and the liquid outlet pipe are sequentially communicated, and the support frame is used for bearing the rest parts of the purification device and enabling the purification device to integrally move;
the liquid inlet pipe is provided with a throttling device and is used for introducing a refrigerant into the purification device;
the liquid outlet pipe is used for leading out the refrigerant from the purification device.
In one embodiment, an oil content detection device is arranged on the liquid outlet pipe.
In one embodiment, a gas-liquid separator is arranged between the first heat exchanger and the compressor.
In one embodiment, the first heat exchanger is capable of exchanging heat with the second heat exchanger.
In one embodiment, the first heat exchanger and the second heat exchanger are integrally formed plate heat exchangers.
In one embodiment, the purification device is provided with a third heat exchanger, and the third heat exchanger is arranged between the second heat exchanger and the liquid outlet pipe.
In one embodiment, the purification device comprises a dial plate assembly and an electric cabinet;
the dial assembly includes a low pressure gauge for measuring a pressure of refrigerant entering a suction port of the compressor, a high pressure gauge, and a high-low pressure controller;
the high pressure gauge is used for measuring the pressure of the refrigerant discharged from the exhaust port of the compressor;
the high-low pressure controller is used for controlling high-low pressure difference;
the electric cabinet is in signal connection with the oil content detection device and the dial plate assembly and is used for controlling the running state of the purification device.
In one embodiment, the purification device is provided with a liquid storage tank, and the liquid storage tank is provided with an inlet and an outlet;
the inlet is communicated with the liquid outlet pipe and is also used for introducing a refrigerant to be treated into the liquid storage tank;
the outlet is communicated with the liquid inlet pipe and is also used for leading out the processed refrigerant from the liquid storage tank.
In one embodiment, an oil return pipeline is arranged between the oil separator and the compressor, an oil balancer and an oil return valve are arranged on the oil return pipeline, and the oil balancer controls the oil return valve according to the oil level of the compressor.
In one embodiment, the support frame is provided with a caster assembly, and the support frame is movable by the caster assembly.
In one embodiment, the oil separator comprises an end cover and a shell, a shell flange protruding out of the shell is arranged at the upper end of the shell, and a connecting piece penetrates through the end cover and the shell flange and is used for detachably connecting the end cover and the shell flange.
In one embodiment, the housing includes an upper housing and a lower housing, and the upper housing is welded to the lower housing.
The liquid inlet pipe, the first heat exchanger, the compressor, the oil separator, the second heat exchanger and the liquid outlet pipe of the refrigerant purification device are sequentially communicated to form a refrigerant purification flow path and are integrated on the support frame, the refrigerant purification device is simple in structure, can be separated from a refrigeration system to operate independently, can be moved and used according to different purification scenes, and improves the use convenience of the purification device.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of a first embodiment of a refrigerant purification apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the refrigerant purification apparatus according to the present invention;
FIG. 3 is a sectional view of a first embodiment of the refrigerant purification apparatus of the present invention;
FIG. 4 is a schematic view of a supporting frame of a refrigerant purifying device according to a first embodiment of the present invention;
FIG. 5 is a cross-sectional view of an oil separator according to a first embodiment of the refrigerant purification apparatus of the present invention;
FIG. 6 is a schematic view of a third heat exchanger according to a first embodiment of the refrigerant purification apparatus of the present invention;
FIG. 7 is a schematic structural diagram of an axial flow fan according to a first embodiment of the refrigerant purification apparatus of the present invention;
FIG. 8 is a schematic view of a cover plate assembly of a first embodiment of the refrigerant purification apparatus according to the present invention;
FIG. 9 is a schematic structural view of an oil balancer in the first embodiment of the refrigerant purifying device according to the present invention;
wherein,
010-a liquid inlet pipe; 020-throttling means; 030-liquid outlet pipe; 040-oil content detecting means; 050-oil return line; 060-oil balancer; 070-return valve; 080-dry filter; 090-an oil filter;
100-plate heat exchanger;
200-a gas-liquid separator;
300-a compressor; 310-a pressure regulating valve; 320-temperature limiter;
400-an oil separator; 410-an end cap; 411-tapered threaded ball valve; 412-a safety valve; 413-lifting lugs; 420-an upper housing; 421-an exhaust outlet; 422-speculum; 423-oil overflow port; 424-housing flange; 430-a lower housing; 431-exhaust inlet; 432-oil return port; 433-oil drain port; 434-high level liquid viewing lens; 435-low level liquid viewing mirror; 436-a heater; 440-a backplane; 450-a filter element assembly; 451-orifice plate; 452-coarse filter elements; 453-a partition plate; 454-an inner barrel assembly; 455-fine filter element; 456-pressing plate; 460-a connector;
500-a third heat exchanger; 510-a heat exchange assembly; 511-gas distribution pipe fitting; 512-liquid collecting pipe fitting; 520-an axial fan assembly; 521-a fan cover; 522-a flow guide sleeve; 530-a cover plate assembly; 531-fixation holes;
600-a liquid storage tank;
700-a dial plate assembly; 710-low pressure gauge; 720-high pressure gauge; 730-high-low voltage controller;
800-an electric cabinet;
900-a support frame; 910-a caster assembly; 920-a rectangular frame; 921-bottom frame; 922-top frame; 923-upright posts; 930-compressor mounting beam; 940-oil separator mounting beam; 950-gas-liquid separator mounting beam; 960-heat exchanger mounting beam; 970-electric cabinet mounting plate; 980-a third heat exchanger mounting plate; 990-handrail assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the refrigerant purification device of the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 9, a refrigerant purifying apparatus according to an embodiment of the present invention includes a liquid inlet pipe 010, a first heat exchanger, a gas-liquid separator 200, a compressor 300, an oil separator 400, a second heat exchanger, a third heat exchanger 500, a liquid outlet pipe 030, a liquid storage tank 600, and a supporting frame 900.
The liquid inlet pipe 010, the first heat exchanger, the gas-liquid separator 200, the compressor 300, the oil separator 400, the second heat exchanger, the third heat exchanger 500, and the liquid outlet pipe 030 are sequentially communicated to form a refrigerant flow path, and the support frame 900 is used for supporting the rest of the purification apparatus and enabling the purification apparatus to integrally move. The liquid inlet pipe 010 is provided with a throttling device 020, and the liquid inlet pipe 010 is used for introducing a refrigerant into the purification device; liquid outlet pipe 030 is used to lead out refrigerant from the purification apparatus.
Liquid refrigerant to be treated enters the purification device through the liquid inlet pipe 010, first becomes low-temperature and low-pressure refrigerant through the throttling device 020, then enters the first heat exchanger serving as an evaporator to absorb heat and undergo phase change to become gaseous refrigerant, the gaseous refrigerant enters the compressor 300, is compressed into high-temperature and high-pressure refrigerant in the compressor 300 and then is discharged into the oil separator 400, lubricating oil separated from the oil separator 400 is purified and then enters the second heat exchanger serving as a condenser to exchange heat and condense into liquid refrigerant, and the liquid refrigerant is discharged out of the purification device through the liquid outlet pipe 030.
The refrigerant purification device of the embodiment does not need to rely on a refrigeration system, and when the refrigerant purification device is used, the liquid inlet pipe 010 and the liquid outlet pipe 030 are respectively communicated with a refrigerant source to be treated, the refrigerant to be treated is led into the purification device, and the refrigerant to be treated is led out of the purification device after being purified. This purifier can break away from in refrigerating system independent operation to can remove the use according to the purification scene of difference, can purify the refrigerant with feed liquor pipe 010, drain pipe 030 intercommunication on the container of pending refrigerant, improve this purifier's convenience of use.
Optionally, the liquid inlet pipe 010 and the liquid outlet pipe 030 may be directly connected to the refrigeration system, and the refrigerant to be treated in the refrigeration system directly enters the purification device through the liquid inlet pipe 010, and directly returns to the refrigeration system through the liquid outlet pipe 030 after treatment.
As an alternative embodiment, the purification device is provided with a liquid storage tank 600, and the liquid storage tank 600 is provided with an inlet and an outlet. The inlet is communicated with the liquid outlet pipe 030 and is also used for introducing a refrigerant to be treated into the liquid storage tank 600; the outlet is communicated with the liquid inlet pipe 010 and is also used for leading out the processed refrigerant from the liquid storage tank 600.
The refrigerant to be treated is firstly introduced into the liquid storage tank 600 through the inlet of the liquid storage tank 600, then the liquid storage tank 600, the liquid inlet pipe 010, the first heat exchanger, the compressor 300, the oil separator 400, the second heat exchanger and the liquid outlet pipe 030 are continuously circulated for purification treatment, and finally the refrigerant is led out of the liquid storage tank 600 through the outlet of the liquid storage tank 600 for reuse. By arranging the liquid storage tank 600, the refrigerant to be treated can be efficiently purified in the purification device for multiple times, and the purification efficiency is improved.
As an alternative embodiment, the liquid outlet pipe 030 is provided with an oil content detection device 040. The oil content detection device 040 is used to detect the oil content in the refrigerant that has been processed by the purification device, and thus the operation of the purification device can be controlled according to the oil content of the refrigerant flowing through the liquid outlet pipe 030. Optionally, when the oil content of the refrigerant is reduced below the preset oil content, the purification device is controlled to stop working, so that the purification device is prevented from operating inefficiently, and energy waste is avoided; and when the oil content of the refrigerant is not reduced to the preset oil content, controlling the purification device to continue working, and continuously circulating the refrigerant in the purification device until the oil content of the refrigerant is reduced to be lower than the preset oil content.
Optionally, a dry filter 080 is disposed on the liquid outlet pipe 030, and the dry filter 080 filters and dries the refrigerant passing through the liquid outlet pipe 030, so as to filter out impurities therein, absorb moisture therein, and further improve a purification effect on the refrigerant.
As an alternative embodiment, a gas-liquid separator 200 is disposed between the first heat exchanger and the compressor 300. The gas refrigerant generated by heat absorption and gasification in the first heat exchanger is first subjected to gas-liquid separation by the gas-liquid separator 200, so that the phenomenon that the gas refrigerant is entrained with the liquid refrigerant and is sucked into the compressor 300 is avoided, and the liquid impact phenomenon of the compressor 300 is avoided.
As an alternative embodiment, the first heat exchanger and the second heat exchanger are arranged in a structure capable of exchanging heat with each other. For example, the first heat exchanger and the second heat exchanger are arranged in parallel contact with each other, and heat exchange is realized by enabling the refrigerant flowing through the first heat exchanger to flow in the reverse direction of the refrigerant flowing through the second heat exchanger. Optionally, the first heat exchanger and the second heat exchanger are the plate heat exchanger 100 of an integrated structure, the low-temperature low-pressure liquid refrigerant generated by the throttling device 020 and the high-temperature high-pressure refrigerant flowing out of the oil separator 400 respectively pass through different flow channels of the plate heat exchanger 100, the low-temperature low-pressure liquid refrigerant and the high-temperature high-pressure refrigerant exchange heat in the plate heat exchanger 100, and meanwhile, the evaporation function of the first heat exchanger and the condensation function of the second heat exchanger are realized, so that heat released by condensation and cold generated by evaporation generated by the purification device itself are fully utilized. In addition, the compact design of the purification device is convenient to realize, and the mobile application of the purification device is easy to realize.
As an alternative embodiment, the purification apparatus is provided with a third heat exchanger 500, and the third heat exchanger 500 is disposed between the second heat exchanger and the liquid outlet pipe 030.
Because the refrigerant flow of the first heat exchanger and the refrigerant flow of the second heat exchanger are balanced, the evaporation heat absorption of the first heat exchanger and the condensation heat release of the second heat exchanger are balanced and offset with each other, and no external cold source or heat source is consumed. In addition, when the compressor 300 compresses the refrigerant, additional heat is generated, and the refrigerant in the second heat exchanger after exchanging heat with the refrigerant in the first heat exchanger cannot be completely condensed into liquid, so that additional heat needs to be discharged, and the third heat exchanger 500 is used for discharging the additional heat generated when the compressor 300 compresses the refrigerant, so that all the refrigerant condensed by the second heat exchanger and the third heat exchanger 500 becomes liquid refrigerant and is discharged out of the purification apparatus through the liquid outlet pipe 030.
As an alternative embodiment, the purification apparatus includes a dial plate assembly 700 and an electric cabinet 800. The dial assembly 700 includes a low pressure gauge 710, a high pressure gauge 720, and a high-low pressure controller 730, the low pressure gauge 710 for measuring a pressure of refrigerant entering a suction port of the compressor 300; the high pressure gauge 720 is used for measuring the pressure of the refrigerant discharged from the discharge port of the compressor 300; the high-low pressure controller 730 serves to control the high-low pressure difference to improve the compression performance of the compressor 300. The electric cabinet 800 is in signal connection with the oil content detection device 040 and the dial plate assembly 700, and is used for controlling the running state of the purification device.
As an alternative embodiment, an oil return line 050 is disposed between the oil separator 400 and the compressor 300, an oil balancer 060 and an oil return valve 070 are disposed on the oil return line 050, and the oil balancer 060 controls the oil return valve 070 according to the oil level of the compressor 300. Alternatively, an oil balancer 060 is provided on the compressor 300, the crankcase oil level of the compressor 300 is detected in real time, and when the detected oil level is lower than the minimum oil level, the oil return valve 070 is controlled to be opened so as to start oil return through the oil return pipe; when the detected oil level is higher than the maximum oil level, the oil return valve 070 is controlled to close so as to stop returning oil through the oil return pipeline. The oil balancer 060 is an electrical component, and automatically returns oil or stops returning oil by monitoring the oil level of the crankcase of the compressor 300, thereby effectively preventing the compressor 300 from running in an oil-starved state or running with oil, and improving the running reliability of the purification device.
Optionally, an oil filter 090 is disposed on the oil return line 050, and the purity of the lubricating oil entering the compressor 300 can be improved by filtering the lubricating oil through the oil filter 090.
As an alternative embodiment, the supporting stand 900 is provided with caster assemblies 910, and the supporting stand 900 is movable by the caster assemblies 910. Optionally, caster assembly 910 includes a plurality of full-brake shock absorbing wheels. Further, the caster assembly 910 has four full-braking shock-absorbing wheels, which are respectively disposed at four corners of the bottom of the supporting frame 900. Adopt full formula of stopping shock attenuation wheel, on the one hand can remove or pull purifier removal through full formula of stopping shock attenuation wheel, conveniently remove ground purification refrigerant, on the other hand also can make things convenient for its brake of fixing operation or removal in-process temporarily when using. In addition, the damping effect of the full-braking type damping wheel can be utilized, and the influence on the system itself caused by overlarge vibration generated during the work of the purification device is reduced.
Optionally, the supporting frame 900 includes a rectangular frame 920, and the rectangular frame 920 is surrounded by a bottom frame 921, a top frame 922, and four upright posts 923.
A third heat exchanger mounting plate 980 is provided on a first side of the rectangular frame 920 for fixedly mounting the third heat exchanger 500. Optionally, third heat exchanger 500 includes a heat exchange assembly 510, an axial fan assembly 520, and a cover plate assembly 530. The heat exchange assembly 510 is rectangular with the size of the side of the rectangular frame 920 matching. The axial flow fan assembly 520 is disposed inside the rectangular frame 920 of the heat exchange assembly 510 for generating convection to perform forced heat exchange on the heat exchange assembly 510. The cover plate assembly 530 is fixed on the top frame 922 corresponding to the heat exchange assembly 510 and the axial flow fan assembly 520, and forms a condensation cavity with the heat exchange assembly 510, the axial flow fan assembly 520 and the third heat exchanger mounting plate 980 in an enclosing manner, so that convection is generated by the axial flow fan assembly 520, and forced heat exchange efficiency is improved. Optionally, a gas distribution pipe 511 and a liquid collection pipe 512 are provided in the heat exchange assembly 510. The liquid collecting pipe 512 collects and connects the liquid refrigerant generated in the heat exchange assembly 510 with the liquid outlet pipe 030, thereby discharging the generated liquid refrigerant out of the third heat exchanger 500. The gas-distributing pipe 511 allows the gaseous refrigerant to continue flowing in the heat exchange assembly 510 to further release heat to generate liquid refrigerant.
Optionally, axial fan assembly 520 includes a motor, fan blades, fan housing 521, and air guide housing 522. The fan cover 521 is used for protecting fan blades, the air guide sleeve 522 is used for guiding air generated by the fan blades to enable the air to flow directionally, the axial flow fan assembly 520 is fixed through the air guide sleeve 522, a special fan mounting frame is not needed, the structure is simplified, and the structure of the purifying device is favorably compacted.
Optionally, the cover plate assembly 530 includes a cover plate, the cover plate is a sheet metal part, four sides of the cover plate are bent to the same side to form the side, and the cover plate is fixed on the axial flow fan assembly 520 and the heat exchanger assembly through screws by using fixing holes 531 arranged on the cover plate.
And a heat exchanger mounting beam 960 is mounted on a second side surface opposite to the first side surface of the rectangular frame 920 and used for fixedly mounting a first heat exchanger and a second heat exchanger, and is particularly suitable for the plate heat exchanger 100 with the first heat exchanger and the second heat exchanger in an integrated structure.
An electric cabinet mounting plate 970 is fixedly arranged on the third side face of the rectangular frame 920 and used for fixedly mounting the electric cabinet 800. Electric cabinet 800 installs in the side of rectangular frame 920, is convenient for electric cabinet 800 control.
A handle assembly 990 is installed on a fourth side opposite to the third side of the rectangular frame 920, so that the support stand 900 can be dragged or pushed to move by the handle assembly 990.
Two oil separator mounting beams 940 are secured adjacent to the bottom frame 921 of the rectangular frame 920 adjacent the fourth side for fixedly mounting the oil separator 400. A gas-liquid separator installation beam 950 for installing the gas-liquid separator 200 adjacent to the oil separator 400 is also fixed to the bottom frame 921 of the rectangular frame 920. Since the oil separator 400 and the compressor 300 have a large volume, two compressor mounting beams 930 for fixedly mounting the compressor 300 are fixed to the top frame 922 that is offset from the oil separator mounting beam 940. That is, the compressor mounting beam 930 is disposed adjacent to the third side.
Optionally, a dial assembly 700 may be secured at a second side adjacent to the compressor mounting beam 930 to facilitate monitoring of the high pressure, low pressure, and control of high and low pressure differentials of the purification apparatus.
Hereinafter, the fixing positions of the respective parts of the purification apparatus in the support stand 900 will be described in detail by respectively positioning the corresponding directions of the first side, the second side, the third side, and the fourth side as the rear end, the front end, the left end, and the right end of the support stand 900.
The support frame 900 is a framework of the purification apparatus, and other components are all installed on the support frame 900. The plate heat exchanger 100 has both evaporation and condensation functions in the purification apparatus, is mounted on a heat exchanger mounting beam 960 at the front end of the support frame 900 and near the right end, and is connected with a liquid inlet pipe 010. The vapor-liquid separator plays a role of vapor-liquid separation in the purification apparatus to prevent the compressor 300 from running with liquid, and is installed at the bottom of the support frame 900, the rear end of the plate heat exchanger 100. The compressor 300 is a power source of the purification apparatus and is installed at the right end of the upper portion of the support frame 900. The oil balancer 060 is fixed to the compressor 300 by monitoring the oil level of the compressor 300 to realize automatic oil return or stop oil return. The dial plate assembly 700 is used to monitor the high and low pressures of the system and control the pressure difference between high and low pressures, and is installed at the front end of the supporting bracket 900 near the compressor 300 so as to be connected to the compressor 300. The oil separator 400 plays a role of oil-gas separation, oil storage, etc. in the system, and is installed at the lower left end of the supporting frame 900.
The third heat exchanger 500 plays a role of condensing heat exchange in the purification apparatus, and is installed at the rear side of the supporting frame 900. The drying filter 080 is used for drying moisture of the refrigerant and filtering impurities of the refrigerant and is connected to the liquid outlet pipe 030; the oil content sensor is used for detecting the oil content of the refrigerant and is also connected to the liquid outlet pipe 030. The electric cabinet 800 is a control center of the purification apparatus and is installed at the right end of the support frame 900. The liquid inlet pipe 010 and the liquid outlet pipe 030 are respectively provided with a pipe joint structure so as to connect the liquid inlet pipe 010 and the liquid outlet pipe 030 with the liquid storage tank 600 and a container or a system where the refrigerant to be treated is located.
As an alternative embodiment, the oil separator 400 includes an end cover 410 and a housing, the upper end of the housing is provided with a housing flange 424 protruding from the housing, and a connector 460 is disposed through the end cover 410 and the housing flange 424 for detachably connecting the end cover 410 and the housing flange 424, so that the end cover 410 and the housing are sealed. The end cap 410 is removably coupled to the housing flange 424 to facilitate replacement of the fine filter 455 of the oil separator 400. In addition, the connection mode of the end cover 410 and the shell flange 424 through the connecting piece 460 is applicable to large heavy and small oil separators 400, and the connecting effect of the cover plate and the shell flange 424 is not affected after the connecting piece is disassembled for many times. For example, the housing flange 424 may be a flange structure welded to the upper end of the upper housing 420 and having an outer diameter greater than that of the upper housing 420.
As an alternative embodiment, the housing includes an upper housing 420 and a lower housing 430, and the upper housing 420 and the lower housing 430 are welded. The upper housing 420 and the lower housing 430 are assembled by welding the internal components, and then are combined by welding, thereby overcoming the problem that the internal components of the oil separator 400 with small diameter and large length cannot be welded.
For example, the oil separator 400 includes an end cover 410, an upper housing 420, a lower housing 430, a floor 440, a cartridge assembly 450, and a connection 460. The upper end of the upper casing 420 is detachably connected with the end cover 410 through a connecting piece 460, the lower end of the upper casing 420 is welded with the upper end of the lower casing 430, and the lower end of the lower casing 430 is connected with the bottom plate 440, so that a shell structure of the oil separator 400 is formed, and the filter element assembly 450 is arranged in the shell structure.
Refrigerant gas discharged from the compressor 300 flows in the oil separator 400 from bottom to top, and is sequentially subjected to centrifugal separation, gravity settling separation, multistage filtration separation, and the like, thereby realizing oil-gas separation.
Optionally, the filter cartridge assembly 450 includes an orifice plate 451, a coarse filter cartridge 452, a partition 453, an inner cartridge assembly 454, a fine filter cartridge 455, and a pressure plate 456. The orifice plate 451 is welded to the lower housing 430 to allow the separated oil to fall into the lower oil reservoir of the oil separator 400, to prevent the upper air flow from blowing the oil in the oil reservoir, and to prevent the oil in the oil reservoir from splashing upward. The partition 453 is welded to the lower case 430 to perform a partition, sealing, and supporting function. A strainer core 452 is welded adjacent to the side of the partition 453 adjacent to the orifice plate 451 for coarse separation of oil and gas. An inner barrel assembly 454 is welded to the upper housing 420 for mounting a cage as a fine filter 455 while directing multiple radial and axial flows of oil vapor to improve oil vapor separation efficiency. Fine filter 455 is movably mounted on inner cartridge assembly 454, which is pressed against inner cartridge assembly 454 by a press plate 456. The fine filter 455 is used for fine oil-gas separation, so that the separation efficiency of lubricating oil in the refrigerant is further improved, and the purification effect of the refrigerant is improved.
Optionally, the lower housing 430 is provided with an exhaust inlet 431, an oil return port 432, an oil drain port 433, a high level liquid sight glass 434, a low level liquid sight glass 435, and a heater 436. The exhaust inlet 431 is a port through which the exhaust gas of the compressor 300 enters the oil separator 400, and is welded to the lower housing 430 in a tangential direction, and when the exhaust gas enters the oil separator 400, the airflow rotates along the inner wall of the housing, and oil droplets are centrifugally separated under the action of centrifugal force. The oil return port 432 is connected to an oil return line 050, and when the oil balancer 060 detects that the oil level of the compressor 300 is lower than a preset oil level, the separated lubricating oil flows into an oil return pipe through the oil return port 432 and further enters the compressor 300. The oil drain 433 is used to drain excess lubricating oil in the oil separator 400. The purification device is used for purifying the refrigerant containing more lubricating oil, along with the operation of the purification device, the more lubricating oil is stored in the oil separator 400, when the lubricating oil in the oil separator 400 is higher than the allowable liquid level of an oil storage area, the purification device can stop to discharge part of the lubricating oil out of the oil separator 400 through the oil discharge port 433. The high level liquid viewing mirror 434 is used to observe whether the oil level in the oil storage area is higher than the allowable liquid level in the oil storage area, and determine the oil drainage time. The low level sight 435 is used to observe the low oil level condition in the oil storage area. The heater 436 is screwed to the lower case 430 for heating the lubricant oil when the temperature of the lubricant oil is low or when liquid refrigerant is mixed in the lubricant oil at the time of system start-up.
The upper casing 420 is provided with an exhaust outlet 421, a sight glass 422 and an oil spilling port 423. The exhaust outlet 421 is welded to the upper housing 420 in the radial direction, and discharges the refrigerant gas subjected to the oil separation process. The sight glass 422 is used to observe whether the fine filter 455 is dirty or not and whether the lower part of the fine filter is oil-accumulated or not, so as to determine the replacement time. The oil overflow port 423 is used to discharge the accumulated lubricating oil when oil accumulates near the lower portion of the fine filter element.
The end cover 410 is provided with a conical threaded ball valve 411, a safety valve 412 and a lifting lug 413. Wherein, the conical thread ball valve 411 is used for maintenance, and the relief valve 412 plays the safety protection role, prevents that the pressure is too high in oil separator 400. Lifting lug 413 is used for oil content hoist and mount transportation in production, maintenance.
The upper end of the upper housing 420 is provided with a housing flange 424 protruding from the upper housing 420, the end caps 410 and the housing flange 424 are matched in size and are respectively provided with a connecting hole correspondingly, and the connecting member 460 is arranged on the end caps 410 and the housing flange 424 through the connecting holes. Alternatively, the connector 460 may be a bolt or other removable component to enable the removable connection of the end cap 410 to the housing flange 424 to enable replacement of consumables such as the filter cartridge assembly 450 or the fine filter cartridge 455 within the housing.
The upper end of the housing is provided with a housing flange 424 protruding from the housing, and a connecting member 460 penetrates the end cap 410 and the housing flange 424 for detachably connecting the end cap 410 and the housing flange 424. End cap 410 is removably coupled to housing flange 424 to facilitate replacement of fine filter 455 of oil separator 400. In addition, the connection mode of the end cover 410 and the shell flange 424 through the connecting piece 460 is applicable to large heavy and small oil separators 400, and the connecting effect of the cover plate and the shell flange 424 is not affected after the connecting piece is disassembled for many times.
As an alternative embodiment, the throttling device 020 may be a thermal expansion valve, a temperature sensing bulb of the thermal expansion valve is disposed on a pipeline between the first heat exchanger and the compressor 300, one end of an external balance pipeline of the thermal expansion valve is connected to the liquid inlet pipe 010, and the other end of the external balance pipeline is connected to a pipeline between the first heat exchanger and the compressor 300.
The thermostatic expansion valve is used for ensuring that the superheat degree of gaseous refrigerant at the outlet of the first heat exchanger is stable, and the temperature sensing bulb is in good contact with a pipeline communicated with the air suction port of the compressor 300, so that the air suction temperature of the compressor 300 can be accurately sensed, the pressure fed back by the temperature sensing bulb is the saturation pressure corresponding to the air suction temperature of the compressor 300, and the optimal liquid supply mode of the first heat exchanger is realized when the operation environment changes (such as heat load change) through the expansion valve.
Optionally, a pressure regulating valve 310 is disposed on a pipe communicated with the suction port of the compressor 300, and the pressure regulating valve 310 can control the pressure of the gaseous refrigerant entering the compressor 300 through the suction port of the compressor 300, so as to cooperate with the high-low pressure controller 730 to regulate the high-low pressure difference of the compressor 300.
Alternatively, a temperature limiter 320 is provided on a pipe between the discharge port of the compressor 300 and the oil separator 400, the temperature limiter 320 is used to measure the temperature of the high-temperature and high-pressure refrigerant discharged from the discharge port of the compressor 300, and the electric cabinet 800 can adjust the operating state of the purification apparatus according to the measured temperature of the temperature limiter 320. For example, when the compressor 300 is an inverter compressor 300, the frequency of the inverter compressor 300 is regulated based on the measured temperature of the temperature limiter 320. As another example, the heat exchange efficiency of the third heat exchanger 500 is regulated based on the measured temperature of the temperature limiter 320.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. The refrigerant purification device is characterized by comprising a liquid inlet pipe (010), a first heat exchanger, a compressor (300), an oil separator (400), a second heat exchanger, a liquid outlet pipe (030) and a support frame (900), wherein the liquid inlet pipe (010), the first heat exchanger, the compressor (300), the oil separator (400), the second heat exchanger and the liquid outlet pipe (030) are sequentially communicated, and the support frame (900) is used for bearing the rest of components of the purification device and enabling the purification device to move;
the liquid inlet pipe (010) is provided with a throttling device (020), and the liquid inlet pipe (010) is used for introducing a refrigerant into the purification device;
the liquid outlet pipe (030) is used for leading out refrigerant from the purification device.
2. Purification apparatus according to claim 1, wherein the outlet pipe (030) is provided with an oil content detection device (040).
3. Purification device according to claim 2, wherein a gas-liquid separator (200) is provided between the first heat exchanger and the compressor (300).
4. The purification apparatus of claim 2, wherein the first heat exchanger is capable of exchanging heat with the second heat exchanger.
5. Purification device according to claim 4, wherein the first heat exchanger and the second heat exchanger are integrated plate heat exchangers (100).
6. Purification device according to claim 5, wherein a third heat exchanger (500) is provided, said third heat exchanger (500) being arranged between said second heat exchanger and said outlet pipe (030).
7. The purification apparatus according to any one of claims 2 to 5, wherein the purification apparatus comprises a dial plate assembly (700) and an electric cabinet (800);
the dial assembly (700) includes a low pressure gauge (710), a high pressure gauge (720), and a high-low pressure controller (730), the low pressure gauge (710) for measuring a pressure of refrigerant entering a suction port of the compressor (300);
the high pressure gauge (720) is used for measuring the pressure of the refrigerant discharged from the exhaust port of the compressor (300);
the high-low pressure controller (730) is used for controlling high-low pressure difference;
the electric cabinet (800) is in signal connection with the oil content detection device (040) and the dial plate assembly (700) and is used for controlling the running state of the purification device.
8. The purification device according to claim 7, wherein the purification device is provided with a liquid storage tank (600), the liquid storage tank (600) is provided with an inlet and an outlet;
the inlet is communicated with the liquid outlet pipe (030), and is also used for introducing a refrigerant to be treated into the liquid storage tank (600);
the outlet is communicated with the liquid inlet pipe (010), and the outlet is also used for leading out the processed refrigerant from the liquid storage tank (600).
9. Purification device according to claim 7, wherein an oil return line (050) is provided between the oil separator (400) and the compressor (300), wherein an oil balancer (060) and an oil return valve (070) are provided on the oil return line (050), and wherein the oil balancer (060) controls the oil return valve (070) according to the oil level of the compressor (300).
10. Purification apparatus according to claim 7, wherein the support stand (900) is provided with caster assemblies (910), the support stand (900) being movable by the caster assemblies (910).
11. The purification apparatus according to claim 7, wherein the oil separator (400) comprises an end cover (410) and a housing, a housing flange (424) protruding from the housing is provided at an upper end of the housing, and a connecting member (460) is provided through the end cover (410) and the housing flange (424) for detachably connecting the end cover (410) and the housing flange (424).
12. The purification apparatus of claim 11, wherein the housing comprises an upper housing (420) and a lower housing (430), the upper housing (420) being welded to the lower housing (430).
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| CN201710448607.XA CN107120880A (en) | 2017-06-14 | 2017-06-14 | Refrigerant purification device |
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| CN201710448607.XA CN107120880A (en) | 2017-06-14 | 2017-06-14 | Refrigerant purification device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019056900A1 (en) * | 2017-09-25 | 2019-03-28 | 格力电器（武汉）有限公司 | Oil separator |
| CN109751823A (en) * | 2017-11-06 | 2019-05-14 | 博西华家用电器有限公司 | Refrigerating appliance |
| CN110757239A (en) * | 2019-10-17 | 2020-02-07 | 上海莱译机械设备有限公司 | Cooling water channel device for automobile sheet metal die |
| RU2722917C2 (en) * | 2018-10-18 | 2020-06-04 | Российская Федерация от имени которой выступает Министерство промышленности и торговли Российской Федерации | Method of rectification purification of difluorochloromethane and device realizing it |
| CN117433189A (en) * | 2023-11-30 | 2024-01-23 | 浙江红五环机械股份有限公司 | Auxiliary oil return device for oil balance of double-full-closed screw compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203908144U (en) * | 2014-06-06 | 2014-10-29 | 新昌县派尔克机电制造有限公司 | Detachable oil separator |
| CN205383822U (en) * | 2015-12-18 | 2016-07-13 | 广东交通职业技术学院 | Multi -functional maintenance dolly of refrigeration air conditioner |
| CN106524609A (en) * | 2016-11-29 | 2017-03-22 | 珠海格力电器股份有限公司 | Refrigerant purification device |
| CN206222764U (en) * | 2016-12-02 | 2017-06-06 | 安徽省精正电器有限公司 | A kind of oil eliminator |
| CN206875773U (en) * | 2017-06-14 | 2018-01-12 | 珠海格力电器股份有限公司 | Refrigerant purification device |
-
2017
- 2017-06-14 CN CN201710448607.XA patent/CN107120880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203908144U (en) * | 2014-06-06 | 2014-10-29 | 新昌县派尔克机电制造有限公司 | Detachable oil separator |
| CN205383822U (en) * | 2015-12-18 | 2016-07-13 | 广东交通职业技术学院 | Multi -functional maintenance dolly of refrigeration air conditioner |
| CN106524609A (en) * | 2016-11-29 | 2017-03-22 | 珠海格力电器股份有限公司 | Refrigerant purification device |
| CN206222764U (en) * | 2016-12-02 | 2017-06-06 | 安徽省精正电器有限公司 | A kind of oil eliminator |
| CN206875773U (en) * | 2017-06-14 | 2018-01-12 | 珠海格力电器股份有限公司 | Refrigerant purification device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019056900A1 (en) * | 2017-09-25 | 2019-03-28 | 格力电器（武汉）有限公司 | Oil separator |
| CN109751823A (en) * | 2017-11-06 | 2019-05-14 | 博西华家用电器有限公司 | Refrigerating appliance |
| RU2722917C2 (en) * | 2018-10-18 | 2020-06-04 | Российская Федерация от имени которой выступает Министерство промышленности и торговли Российской Федерации | Method of rectification purification of difluorochloromethane and device realizing it |
| CN110757239A (en) * | 2019-10-17 | 2020-02-07 | 上海莱译机械设备有限公司 | Cooling water channel device for automobile sheet metal die |
| CN117433189A (en) * | 2023-11-30 | 2024-01-23 | 浙江红五环机械股份有限公司 | Auxiliary oil return device for oil balance of double-full-closed screw compressor |
| CN117433189B (en) * | 2023-11-30 | 2024-06-07 | 浙江红五环机械股份有限公司 | Auxiliary oil return device for oil balance of double-full-closed screw compressor |
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Application publication date: 20170901 |