CN111288595B - Cleaning device for refrigeration air-conditioning system without condenser, expansion valve and capillary tube - Google Patents
Cleaning device for refrigeration air-conditioning system without condenser, expansion valve and capillary tube Download PDFInfo
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- CN111288595B CN111288595B CN201910030688.0A CN201910030688A CN111288595B CN 111288595 B CN111288595 B CN 111288595B CN 201910030688 A CN201910030688 A CN 201910030688A CN 111288595 B CN111288595 B CN 111288595B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 121
- 238000005057 refrigeration Methods 0.000 title claims abstract description 120
- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- 239000003507 refrigerant Substances 0.000 claims abstract description 208
- 238000012423 maintenance Methods 0.000 claims abstract description 140
- 239000007788 liquid Substances 0.000 claims abstract description 119
- 238000002309 gasification Methods 0.000 claims abstract description 38
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000011049 filling Methods 0.000 claims description 51
- 238000004064 recycling Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
- F25B45/00—Arrangements for charging or discharging refrigerant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention A is a freezing air-conditioning system Z cleaning device without condenser, expansion valve and capillary, which is operated by a mechanical maintenance device electrically connected with a compressor A11, a high-pressure end pipeline of the device generates high-pressure high-temperature gaseous refrigerant, a low-pressure end pipeline generates vacuum suction, a transmission control unit pipeline is connected with a high-low pressure maintenance port of the freezing air-conditioning system Z to be maintained, the circulating cleaning operation of high-low pressure component pipeline gas-liquid refrigerant and separated pollution source is carried out, the high-low pressure pipeline and a pipeline gasification hole which are connected in series and in parallel in a cavity of a gas-liquid separator C generate gas-liquid change of the refrigerant, the cleaned refrigerant and the pollution source are separated in an accelerated way, and the separated refrigerant is recycled and discharged. The invention A can solve the defects of the traditional condenser, expansion valve and capillary tube that the cleaning flow rate of the refrigerant pipeline is influenced and the time for separating the refrigerant and the pollution source is too long, and can greatly save the operation time and the manufacturing cost of the mechanical maintenance equipment of the refrigeration air conditioner.
Description
The present invention claims priority: 107144351
Technical Field
The invention A is a freezing air-conditioning system Z cleaning device without condenser, expansion valve and capillary tube, which simplifies the condenser, expansion valve and capillary tube of the known freezing air-conditioning system Z cleaning device, presents the way of connecting high-low pressure pipelines in series-parallel, can transmit current (refrigerant flow rate) as circuit quickly without losing voltage (pipeline pressure), can circularly clean the system pipeline refrigerant and separate pollution source, improves cleaning speed, shortens maintenance operation time of mechanical maintenance equipment and saves manufacturing cost.
Background
In recent years, due to global greenhouse effect and rapid deterioration of atmospheric pollution, most occasions require clean and good air and comfortable temperature in a closed space, a constant-temperature air conditioning system is arranged, but after the refrigeration air conditioning system Z is used for a long time, maintenance operation for maintaining the system is required, the lubricating system of the refrigeration air conditioning system Z has a principle which is different from that of a common mechanical lubricating system, a pollution source can be discharged by only unscrewing a screw or using a suction mode of a common machine, maintenance operation can be completed by replacing new oil, the refrigeration air conditioning lubricating system lubricates a compressor and various parts by involving complex high-low pressure and high-low temperature gas-liquid refrigerants and refrigeration oil mixing modes, and corresponding mechanical maintenance equipment is required during maintenance operation. In order to overcome the defect that the separation speed of the refrigerant and the pollution source of the Z cleaning and maintenance equipment of the refrigerating air-conditioning system is too slow, namely the pressure difference of a condenser, an expansion valve and a capillary tube in the traditional technology is limited, so that the flow speed of the refrigerant during cleaning a pipeline is influenced, and the refrigerant and the pollution source are quickly separated, the Z cleaning and maintenance equipment manufacturers of the refrigerating air-conditioning system and the technical personnel in the field of the Z cleaning and maintenance equipment manufacturers develop the following mechanical maintenance equipment:
1. the traditional condenser, expansion valve and capillary use the pressure difference of limiting contraction to separate the refrigerant and pollution source.
2. An electronic automatic expansion valve system.
3. Automatic pulse point-discharge cleaning system.
4. All of the above techniques require a condenser, an expansion valve for limiting the pressure difference, and a capillary tube.
Based on the technology, the inventor creates the invention A with different thinking, and solves the defects of the technology.
For example, taiwan patent publication I318288 "multifunctional refrigerant recycling machine", fig. 1 shows a conventional Z-cleaning mechanical maintenance device for a refrigeration air-conditioning system, which includes a compressor 21, a condenser 31, a gas-liquid separator 41, a heater 42, and capillary tubes 25, 43, and 45, which not only have long refrigerant pipelines and limit the refrigerant flow rate of the pipelines, but also have possible safety concerns about the use of the heater inside the gas-liquid separator 41.
As shown in fig. 2, taiwan gazette 244010, "a filtering apparatus for a refrigerant recovery and cleaning system", includes a compressor 42, a condenser 60, an expansion valve 62, and a gas-liquid separator 41, which are long in refrigerant pipeline and limit the refrigerant flow rate of the pipeline.
Because the technology is carried by dozens of loads and is not changed, the separation speed of the refrigerant and the pollution source is too long, and the Z oil change time of the refrigeration air-conditioning system is the longest and the highest in difficulty in all mechanical maintenance oil change equipment.
Disclosure of Invention
The invention A is electrically connected with a compressor A11 to operate by mechanical equipment, high-pressure high-temperature gaseous refrigerant generated by a high-pressure end pipeline and vacuum suction generated by a low-pressure end pipeline do not need to be liquefied by gas and liquid of a condenser, an expansion valve and a capillary tube, and enter a gas-liquid separator C, an internal high-pressure serial-parallel pipeline liquefies low-temperature gas-liquid refrigerant and a pollution source of the low-pressure serial-parallel pipeline in upper and lower chambers, low-temperature gas-liquid refrigerant of a low-pressure serial-parallel pipeline and a pipeline gasification hole liquefies high-temperature gaseous refrigerant of the high-pressure serial-parallel pipeline, all actions are finished in the chamber of the serial-parallel pipeline and the pipeline gasification hole in the gas-liquid separator C, the gas and liquid of the condenser, the expansion valve and the capillary tube are not needed, the components are simplified, the pipeline of the refrigerant A and the system pressure are shortened, the cleaning flow rate of the mechanical maintenance equipment on the high-low-pressure refrigerant pipeline of a refrigeration air-conditioning system Z to be maintained is further enhanced, and accelerate the separation of the refrigerant and the pollution source.
The cleaning device of the refrigeration air-conditioning system is characterized by at least comprising a compression unit DR93, a vacuum unit US38, a storage unit OQ29, a conveying control unit RT35 and a metering unit QA 58; the invention relates to a Z cleaning device of a refrigeration air-conditioning system without a condenser, an expansion valve and a capillary tube, which is characterized in that a mechanical maintenance device is electrically connected with a compressor A11 for operation, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a pipeline AF9 of the Z cleaning device is connected with an oil filter B17 and a pipeline AD16 at one end leads back the filtered refrigeration oil to be connected with the compressor A11, a pipeline AF9 at one end of an oil filter B17 is connected with a multi-way connecting pipe G9 and enters a gas-liquid separator C, the gaseous refrigerant is liquefied in a low-pressure serial-parallel pipeline and a pipeline gasification hole, a check valve X2 and a pressure relief valve F9 are arranged on the pipeline AF9 and enter a refrigerant recovery filling barrel D, the refrigerant recovery filling barrel D is connected with a refrigerant filling pipe D1, the pipeline D1 is connected with a conveying control unit RT35, a high-pressure working valve FC22 is opened, a low-pressure working valve GC24 is closed, and a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, Vacuum suction working valve IN15 and discharge working valve OUT1, and pipeline connection the high-pressure maintenance port S6 of the invention A mechanical maintenance equipment, its pipeline one end connects the Z high-pressure maintenance port S61 of the refrigeration air-conditioning system to be maintained, and enter the Z high-low pressure component pipeline of the refrigeration air-conditioning system, its low-temperature gas-liquid state coolant and pollution source discharge through the low-pressure maintenance port S331, the pipeline connects to A low-pressure maintenance port S33 of the invention, and connect with transport control unit RT35, (open) low-pressure working valve KC19, (close) high-pressure working valve CH13, pipeline X12 connects coolant window W71, pipeline MB1 connects a multiway connecting pipe VW4, and enter the gas-liquid separator C, and after the gas-liquid state coolant and pollution source gasify from the high-pressure series-parallel pipeline, its pollution source stores IN the lower chamber, and after the operation is finished, discharge working valve OUT1 discharges, low-temperature gas state is gasified by U-type pipeline W17 gasification hole after the oil water filter screen W16 purifies, the refrigerant is connected to a pipeline MB1 and enters a dryer E88, and the low-pressure end of a compressor A11 is connected for operation and compression, so that the circulating cleaning operation of refrigerant and separation pollution sources of pipelines of Z low-pressure components of the refrigerating and air-conditioning system is completed;
the invention A is electrically connected with a compressor A11 to operate by a mechanical maintenance device, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a pipeline AF9 is connected with an oil filter B17 and a pipeline AD16 at one end to lead back filtered refrigeration oil to be connected with the compressor A11, a pipeline AF9 at one end of the oil filter B17 is connected with a multi-way connecting pipe G9 and enters a gas-liquid separator C, after the gaseous refrigerant is liquefied IN a low-pressure serial-parallel pipeline and a pipeline gasification hole, a one-way valve X2 and a pressure relief valve F9 are arranged on a pipeline AF9 and enter a refrigerant recovery and filling barrel D, the refrigerant recovery and filling barrel D is connected with a refrigerant filling pipe D1, a pipeline D1 is connected with a conveying control unit 737RT 6, (open) a high-pressure working valve CH13, (close) a low-pressure working valve KC19, and (close) a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, a vacuum suction working valve IN15 and a discharge working valve OUT1, and a low-pressure maintenance port of the invention A is connected with a low-pressure maintenance port S33, one end of a pipeline is connected with a Z low-pressure maintenance port S331 of a refrigeration and air-conditioning system to be maintained and enters a Z high-pressure and low-pressure component pipeline of the refrigeration and air-conditioning system, a low-temperature gas-liquid refrigerant and a pollution source of the refrigeration and air-conditioning system are discharged through a high-pressure maintenance port S61, the pipeline is connected with a high-pressure maintenance port S6 of the mechanical maintenance equipment A of the invention and is connected with a conveying control unit RT35, a low-pressure working valve GC24 and a high-pressure working valve FC22 are opened, a pipeline X12 is connected with a refrigerant window W71, a pipeline MB1 is connected with a multi-way connecting pipe VW4 and enters a gas-liquid separator C, the pollution source of the gas-liquid refrigerant and the pollution source are gasified through a high-pressure serial and parallel pipeline, the pollution source of the gas-liquid refrigerant is stored in a lower cavity and is discharged through a discharge working valve OUT1 after the operation is finished, the low-temperature gas state refrigerant is purified through a filter W16, an oil-water gasification hole of a U-water gasification hole of a pipeline W17, the gas is connected with a pipeline MB1 and enters a drier E88 and is connected with a low-pressure end of a compressor A11 to operate and compress, completing the circulation cleaning operation of refrigerant and separated pollution sources of Z high-pressure component pipelines of the refrigeration and air-conditioning system;
the invention can also be used as the gas-liquid refrigerant and pollution source of the pipeline of the Z high-low pressure component of the refrigeration air-conditioning system for full recovery operation, the mechanical maintenance equipment is electrically connected with the compressor A11 for operation, the low-pressure end generates vacuum suction, the low-temperature gas-liquid refrigerant and pollution source of the Z high-low pressure component of the refrigeration air-conditioning system are discharged through the high-pressure maintenance port S61 and the low-pressure maintenance port S331, one end of the pipeline is connected with the high-pressure maintenance port S6 and the low-pressure maintenance port S33 of the mechanical maintenance equipment A of the invention and is connected with the transmission control unit RT35, (the) high-pressure working valves FC22, CH13, (the) low-pressure working valves KC19 and GC24 are closed, (the) vacuum high-pressure working valve TI16, the vacuum low-pressure working valve TI99, the vacuum suction working valve IN15 and the discharge working valve OUT1 are closed, the pipeline X12 is connected with the refrigerant W71, the pipeline MB1 is connected with a multi-way connecting pipe VW4 and enters the gas-liquid separator C, and the high-liquid refrigerant is gasified IN series-liquid refrigerant and parallel connection, the pollution source is stored in the lower chamber and is discharged by a discharge working valve OUT1 after the operation is finished, the low-temperature gaseous refrigerant is purified by an oil-water filter W16 and is gasified again by a gasification hole of a U-shaped pipeline W17, and connected to line MB1 and into dryer E88 and to the low pressure side of compressor a11, the low-temperature gaseous refrigerant is operated by a compressor A11, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a line AF9 connected to oil filter B17 and an end line AD16 returning the filtered, chilled oil to compressor A11, an end line AF9 of oil filter B17 connected to a multi-way connection G9 and entering gas-liquid separator C, after the gaseous refrigerant is liquefied in the low-pressure serial-parallel pipeline and the pipeline gasification hole, the pipeline AF9 is provided with a one-way valve X2 and a pressure relief valve F9 and enters the refrigerant recovery and filling barrel D, the gas-liquid refrigerant and the pollution source of the Z high-low pressure component pipeline of the refrigeration air-conditioning system can be quickly recovered;
the invention A can also be applied to the unidirectional recovery operation of gas-liquid refrigerant and pollution source of the Z high-low pressure component pipeline of the refrigeration air-conditioning system, and the unidirectional recovery operation of gas-liquid refrigerant and pollution source can be implemented to the Z high-low pressure component pipeline of the refrigeration air-conditioning system only by switching on the transmission control unit RT35, (opening) the low-pressure working valve GC24 or (opening) the low-pressure working valve KC19, and (closing) the high-pressure working valves FC22 and CH 13;
the invention A can also be applied to the full filling operation of the Z liquid refrigerant of the refrigeration air-conditioning system, the mechanical maintenance equipment is electrically connected with the operation of a compressor A11, a high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant, a pipeline AF9 is connected with an oil filter B17 and a pipeline AD16 at one end to lead back the filtered refrigeration oil to be connected to the compressor A11, a pipeline AF9 at one end of the oil filter B17 is connected with a multi-way connecting pipe G9 and enters a gas-liquid separator C, after the gaseous refrigerant is liquefied IN a low-pressure serial-parallel pipeline and a pipeline gasification hole, a check valve X2 and a pressure relief valve F9 are arranged on the pipeline AF9 and enter a refrigerant recycling and filling barrel D, the refrigerant recycling and filling barrel D is connected with a refrigerant filling pipe D1, the pipeline D1 is connected with a conveying control unit RT35, (C) is opened) the high-pressure working valves 37FC 84, CH13, (C7 is closed) and the suction force of a vacuum high-pressure working valve TI 48, a vacuum low-pressure working valve TI 5, a vacuum working valve IN 5857324 and an OUT 57324 are closed, the pipeline is connected with the high-pressure maintenance port S6 and the low-pressure maintenance port S33 of the mechanical maintenance equipment A, one end of the pipeline is connected with the Z high-pressure maintenance port S61 and the low-pressure maintenance port S331 of the refrigeration air-conditioning system to be maintained, the high-pressure and low-pressure component pipelines are filled with liquid refrigerants, the mixing rate of the refrigerants and pollution sources and the circulating cleaning rate of the refrigerants can be accelerated, and the unidirectional liquid refrigerant quantitative filling operation of the high-pressure and low-pressure component pipelines can also be performed, only a conveying control unit RT35 (opens) a high-pressure working valve FC22 or (opens) a high-pressure working valve CH13, (closes) a low-pressure working valve KC19 and a low-pressure working valve GC24 are needed, and (closes) a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, a vacuum suction working valve IN15 and a discharge working valve OUT1 are needed, and a metering unit QA58 is operated to zero the weight value shown by the weight number display and watch the weight value of the weight number display, after the filling value reaches the set filling amount of the refrigeration air-conditioning system Z, (closing) the high-pressure working valve FC22 or (closing) the high-pressure working valve CH13, and then the liquid refrigerant quantitative filling operation of the Z high-pressure and low-pressure component pipelines of the refrigeration air-conditioning system Z can be completed;
after the recycling of the circulating cleaning operation is finished, vacuumizing operation is carried OUT on a Z high-low pressure component pipeline of a refrigeration air-conditioning system by a vacuum unit US38, mechanical maintenance equipment is electrically connected with a vacuum pump T and an electromagnetic valve E1, and is also connected with a conveying control unit RT35, (open) a vacuum high-pressure working valve TI16 and a vacuum low-pressure working valve TI99, and (close) a vacuum suction working valve IN15, a high-pressure working valve FC22, a CH13, a low-pressure working valve KC19, a GC24 and a discharge working valve OUT1, and is also connected with a high-pressure maintenance port S6 and a low-pressure maintenance port S33 of the mechanical maintenance equipment A, one end of the pipeline is connected with a Z high-pressure maintenance port S61 and a low-pressure maintenance port S331 of the refrigeration air-conditioning system to be maintained, and the pipeline vacuumizing operation of the Z high-low-pressure component of the refrigeration air-conditioning system is carried OUT;
the invention A carries out the method that the refrigeration air-conditioning system Z injects the new refrigeration oil, the vacuum pump T operates continuously and carries on the vacuumization operation to the Z high-low pressure component pipeline of the refrigeration air-conditioning system, (close) the working valve TI99 of the vacuum low pressure, (open) the working valve IN15 of the vacuum suction, by the vacuum suction of the high-pressure end, suck the new refrigeration oil of the new oilcan IN2 from the Z low-pressure maintenance port S331 pipeline of the refrigeration air-conditioning system, and enter the Z compressor of the refrigeration air-conditioning system, does not need to dismantle the Z high-low pressure component pipeline of the refrigeration air-conditioning system and can fill the new refrigeration oil;
the invention A is electrically connected with a compressor A11 to operate by a mechanical maintenance device, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, the gaseous refrigerant does not need to be liquefied by a condenser, an expansion valve and a capillary tube and enters a gas-liquid separator C, internal high-pressure serial-parallel pipelines G11, G12, G13, G14, G15, G1 and GE3, the gas-liquid refrigerant and a pollution source of a refrigerating air-conditioning system Z are recovered by gasifying low-pressure serial-parallel pipelines in upper and lower chambers, a low-pressure pipeline MB1, a refrigerant window W71 and an X12 of the gas-liquid separator C are connected with a conveying control unit RT35 and are connected with pipelines, a high-pressure maintenance port S6 of the mechanical maintenance device A and a low-pressure maintenance port S33 of the mechanical maintenance device A are connected with a Z high-pressure maintenance port S61 and a low-pressure maintenance port S331 of a refrigerating air-conditioning system Z to be maintained at one end of the pipelines, so that the high-pressure and low-pressure refrigerant and the gas-liquid refrigerant and the pollution source of the high-pressure component pipelines are recovered, the refrigerant enters a gas-liquid separator C without being liquefied through a condenser, an expansion valve and a capillary tube, low-pressure series-parallel pipelines W11, W12, W13, W14 and W15 and pipeline gasification holes W1, W2, W3, W4 and W5 are arranged in the gas-liquid separator C, high-temperature gaseous refrigerants in high-pressure series-parallel pipelines G11, G12, G13, G14, G15, G1 and GE3 are liquefied in upper and lower chambers, and high-pressure and low-pressure series-parallel pipelines in the gas-liquid separator C generate liquid state change of refrigerant gas in the chambers, so that the gas-liquid refrigerant and a pollution source recovered by the refrigeration air-conditioning system Z are separated in an accelerated manner.
Preferably, the present invention a can be applied to circulating cleaning operation of gas and liquid refrigerants and separating pollution sources in pipelines of Z high and low pressure components of a refrigeration and air-conditioning system, the metering unit QA58 can accurately and quantitatively fill refrigerants and recycle refrigerants in Z high and low pressure components of the refrigeration and air-conditioning system, the vacuum unit US38 can vacuumize pipelines of Z high and low pressure components of the refrigeration and air-conditioning system, detect the deterioration state of the discharged pollution sources and the waste oil capacity thereof and fill new refrigeration oil, and the high and low pressure meter can observe the functions of the refrigeration and air-conditioning system Z.
Preferably, the gas-liquid separator C has a plurality of high-pressure and low-pressure pipelines connected in series and parallel in the upper and lower chambers, so as to liquefy the refrigerant and accelerate separation of the pollution source, and the number of pipelines or the diameter of the pipelines can be increased or decreased according to the requirement.
Preferably, in the gas-liquid separator C, the upper chamber has a U-shaped pipe W17 having a plurality of pipe gasification holes, so as to accelerate the gasification of the refrigerant and prevent the compressor from liquid impact, and the number and the size of the pipe gasification holes can be increased or decreased according to the requirement.
Preferably, in the gas-liquid separator C, the lower chamber has a plurality of high-pressure and low-pressure series-parallel pipelines and pipeline gasification holes W1, W2, W3, W4 and W5, which can accelerate the gasification of the refrigerant and separate the pollution source, liquefy the high-pressure and high-temperature gaseous refrigerant in the high-pressure and high-temperature high-pressure series-parallel pipelines, and increase or decrease the number of holes and the size of the pipeline gasification holes according to the requirement.
Preferably, in the gas-liquid separator C, the cavity is divided into upper and lower chambers by an oil-water filter W16, so as to improve the purification and regeneration effect of the refrigerant, and the housing has a plurality of maintenance ports S1, S2 and S3, which can be connected with the pipeline of the invention a or can be increased or decreased according to the detection requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a plan view of a conventional cleaning device for a refrigerating and air-conditioning system, showing a first circulation of a condenser, an expansion valve and a capillary tube.
FIG. 2 is a plan view of a conventional cleaning device for a refrigerating and air-conditioning system, showing a second circulation of a condenser, an expansion valve and a capillary tube.
FIG. 3 is a schematic view of the high and low pressure maintenance ports of the present invention, wherein one end of the pipeline is connected to the high and low pressure maintenance ports of the refrigeration and air conditioning system to be maintained, so as to perform the operation of circularly cleaning the refrigerant and the pollution source in the pipeline of the high and low pressure components.
FIG. 4 is a schematic view showing the circulation of a gas-liquid refrigerant in a gas-liquid separator of the present invention, without a condenser, a pressure difference limiting expansion valve and a capillary tube, and with a high-pressure serial-parallel line, a low-pressure serial-parallel line, a line vaporization hole, an oil-water filter, and a U-shaped line having a plurality of line vaporization holes.
Wherein, the invention A; compression unit DR 93; a vacuum unit US 38; a storage unit OQ 29; a conveyance control unit RT 35; a metering unit QA 58; compressor a 11; an oil filter B17; a dryer E88; a gas-liquid separator C; a refrigerant window W71; multi-way connecting pipes G9, G1 and VW 4; service hatches S1, S2, S3; a check valve X2; a discharge operation valve OUT 1; waste oil pots OUT 29; a vacuum pump T; a solenoid valve E1; a vacuum high-pressure working valve TI 16; a vacuum low-pressure working valve TI 99; vacuum suction work valve IN 15; new oil can IN 2; a refrigerant recovery and filling barrel D; barrel pressure gauge FB 1; pressure relief valve F9; high-pressure working valves FC22, CH 13; low pressure working valves KC19, GC 24; a high-pressure maintenance port S6 of the mechanical maintenance equipment; a low-pressure maintenance port S33 of the mechanical maintenance equipment; a pressure gauge I32; a pressure gauge K9; a refrigeration air-conditioning system Z; a high pressure service port S61; a low-pressure service port S331; a U-shaped pipeline W17; an oil-water screen W16; low-pressure series-parallel pipelines W11, W12, W13, W14 and W15; pipeline gasification holes W1, W2, W3, W4 and W5; high-pressure series-parallel pipelines G11, G12, G13, G14, G15, G1 and GE 3; lines MB1, AF9, AD16, D1, X12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The following description is provided as illustrative of the present invention and other advantages and features of the present invention will become apparent to those skilled in the art from the present disclosure. The invention A may be practiced or carried out in various other embodiments, and its several details are capable of modification in various, obvious aspects, and various changes may be made without departing from the spirit of the invention.
As shown in fig. 4, the invention a of a cleaning device for a Z-type refrigerating and air-conditioning system without a condenser, an expansion valve and a capillary tube at least comprises:
compression unit DR93, vacuum unit US38, storage unit OQ29, transport control unit RT35, metering unit QA 58.
The compression unit DR93 comprises a compressor A11, an oil filter B17, a dryer E88, a gas-liquid separator C, maintenance ports S1, S2 and S3 on the cavity of the gas-liquid separator C, a one-way valve X2, a discharge working valve OUT1 and a waste oil kettle OUT 29.
The vacuum unit US38 includes a vacuum pump T and a solenoid valve E1.
The storage unit OQ29 comprises a refrigerant recovery filling barrel D, a refrigerant filling pipe D1, a recovery pipeline AF9, a pressure relief valve F9 and a barrel pressure gauge FB 1.
The conveying control unit RT35 comprises high-pressure working valves FC22, CH13, a pressure gauge I32, a low-pressure working valve KC19, a GC24, a pressure gauge K9, a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, a refrigerant window W71, a vacuum suction working valve IN15, a new oil can IN2, a high-pressure maintenance port S6, a low-pressure maintenance port S33, a Z high-pressure maintenance port S61 and a low-pressure maintenance port S331 of a refrigeration and air-conditioning system to be maintained.
The metering unit QA58 comprises a full-function weight-measuring digital display and a weight-measuring component, and can accurately measure the weight of refrigerant filling and recycling.
The invention A is electrically connected with a compressor A11 to operate by mechanical maintenance equipment, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a pipeline AF9 of the high-pressure end pipeline is connected to an oil filter B17 and a pipeline AD16 at one end to guide and connect filtered refrigeration oil to the compressor A11, a pipeline AF9 at one end of the oil filter B17 is connected to a multi-way connecting pipe G9, a connecting pipeline is communicated with a plurality of high-pressure series-parallel pipelines G11, G12, G13, G14 and G15, the pipeline is connected with a multi-way connecting pipe G9 of a lower chamber and is connected with a series high-pressure pipeline GE3, the gaseous refrigerant is liquefied in a low-pressure series-parallel pipeline and a pipeline gasification hole, a one-way valve X2 and a decompression valve F9 are arranged on a pipeline AF9 and enters a refrigerant recovery and filling barrel D, the refrigerant filling barrel D is connected with a refrigerant filling pipe D1, a pipeline D6867 is connected with a conveying control unit RT 58, a high-pressure working valve FC22, a high-pressure working valve KC 22, a working valve KC, a working valve 22 and a high-pressure working valve GC 22 are connected to a mechanical maintenance equipment S72S 22, A low-pressure maintenance port S33 of mechanical maintenance equipment, one end of the pipeline is connected with a Z high-pressure maintenance port S61 and a low-pressure maintenance port S331 of a refrigeration and air-conditioning system to be maintained and enters the pipelines of Z high-pressure and low-pressure components of the refrigeration and air-conditioning system, low-temperature gas-liquid refrigerant and pollution source are discharged from the Z high-pressure maintenance port S61 and the low-pressure maintenance port S331 of the refrigeration and air-conditioning system, the pipelines are connected with the high-pressure maintenance port S6 of the mechanical maintenance equipment A and the low-pressure maintenance port S33 of the mechanical maintenance equipment A and are connected with a conveying control unit RT35, high-pressure working valves FC22, CH13, low-pressure working valves KC19 and GC24 are connected with a pipeline X12 to form a refrigerant window W71, a pipeline MB1 is connected with a multi-way connecting pipe VW4, and are connected with a low-pressure series-parallel pipeline W11, W12, W13, W14 and W15 in a gas-liquid separator C, and gasification holes W1, W2, W3, W4 and W5 in series-liquid refrigerant and high-liquid refrigerant are gasified after being in parallel connection, the pollution source is stored in the lower cavity, and is discharged by a discharge working valve OUT1 after the operation is finished, low-temperature gaseous refrigerant is purified by an oil-water filter W16, is regasified by a gasification hole of a U-shaped pipeline W17, is connected to a pipeline MB1 and enters a dryer E88, is connected with the low-pressure end of a compressor A11 to operate and compress, a discharge working valve OUT1 and a waste oil pot OUT29 are arranged outside the lower cavity of the gas-liquid separator C, and a shell of the gas-liquid separator C is provided with a plurality of maintenance ports S1, S2 and S3 and can be connected with a Z cleaning device of a refrigeration air-conditioning system.
As shown in fig. 3 and 4; the invention A is a does not need condenser, expansion valve and capillary tube to refrigerate the Z cleaning apparatus of air-conditioning system, electrically connect compressor A11 to operate by the mechanical maintenance equipment, the high-pressure end pipeline produces the gaseous refrigerant of high pressure and high temperature, its pipeline AF9 is connected to oil filter B17 and one end pipeline AD16 and returned the refrigerated oil filtered to connect to compressor A11, one end pipeline AF9 of the oil filter B17 is connected to a multi-way connecting tube G9 and entered the gas-liquid separator C, and after the gaseous refrigerant liquefies in low-pressure series-parallel pipeline and pipeline gasification hole, set up a check valve X2 and a relief valve F9 on the pipeline AF9, and entered the refrigerant and retrieved and filled D, refrigerant retrieved and filled D tube D1, its pipeline D1 connects and transports the control unit RT35, (open) high-pressure working valve FC22, (close) low-pressure working valve GC24, and (close) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, A vacuum suction working valve IN15 and a discharge working valve OUT1, wherein the pipelines are connected with a high-pressure maintenance port S6 of the mechanical maintenance equipment A of the invention, one end of the pipeline is connected with a low-pressure maintenance port S33 of the mechanical maintenance equipment Z of the refrigeration and air-conditioning system Z to be maintained and enters the pipelines of high-pressure and low-pressure components of the refrigeration and air-conditioning system Z, low-temperature gas-liquid refrigerant and a pollution source are discharged through the low-pressure maintenance port S331, the pipelines are connected with the low-pressure maintenance port S33 of the mechanical maintenance equipment A of the invention and are connected with a conveying control unit RT35, a low-pressure working valve KC19 and a high-pressure working valve CH13 are opened and closed, a pipeline X12 is connected with a refrigerant window W71, a pipeline MB1 is connected with a multi-way connecting pipe VW4 and enters a gas-liquid separator C, the gas-liquid refrigerant and the pollution source are gasified through the high-pressure parallel pipeline, the pollution source is stored IN a lower chamber, the pollution source is discharged through the discharge working valve OUT1 after the operation is finished, and the low-temperature gas is purified through an oil-water W16, the refrigerant is regasified by the vaporizing hole of the U-shaped pipeline W17, is connected to the pipeline MB1 and enters the dryer E88, and is connected with the low-pressure end of the compressor A11 to operate and compress, and the circulating cleaning operation of the refrigerant and the separated pollution source of the Z low-pressure component pipeline of the refrigeration and air-conditioning system is completed.
The invention A is electrically connected with a compressor A11 to operate by a mechanical maintenance device, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a pipeline AF9 is connected to an oil filter B17 and a pipeline AD16 at one end to guide and connect filtered refrigeration oil to the compressor A11, a pipeline AF9 at one end of an oil filter B17 is connected to a multi-way connecting pipe G9 and enters a gas-liquid separator C, the gaseous refrigerant is liquefied IN a low-pressure serial-parallel pipeline and a pipeline gasification hole, a pipeline AF9 is provided with a one-way valve X2 and a pressure relief valve F9 and enters a refrigerant recycling and filling barrel D, the refrigerant recycling and filling barrel D is connected with a refrigerant filling pipe D1, a pipeline D1 is connected with a conveying control unit RT35, (open) a high-pressure working valve CH13, (close) a low-pressure working valve KC19, and (close) a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, a vacuum suction working valve IN15 and a discharge working valve OUT1, and a pipeline is connected with a low-pressure maintenance port S33 of the mechanical maintenance device of the invention A, one end of a pipeline is connected with a Z low-pressure maintenance port S331 of a refrigeration and air-conditioning system to be maintained and enters a Z high-pressure and low-pressure component pipeline of the refrigeration and air-conditioning system, a low-temperature gas-liquid refrigerant and a pollution source of the refrigeration and air-conditioning system are discharged through a high-pressure maintenance port S61, the pipeline is connected with a high-pressure maintenance port S6 of the mechanical maintenance equipment A of the invention and is connected with a conveying control unit RT35, a low-pressure working valve GC24 and a high-pressure working valve FC22 are opened, a pipeline X12 is connected with a refrigerant window W71, a pipeline MB1 is connected with a multi-way connecting pipe VW4 and enters a gas-liquid separator C, the pollution source of the gas-liquid refrigerant and the pollution source are gasified through a high-pressure serial and parallel pipeline, the pollution source of the gas-liquid refrigerant is stored in a lower cavity and is discharged through a discharge working valve OUT1 after the operation is finished, the low-temperature gas state refrigerant is purified through a filter W16, an oil-water gasification hole of a U-water gasification hole of a pipeline W17, the gas is connected with a pipeline MB1 and enters a drier E88 and is connected with a low-pressure end of a compressor A11 to operate and compress, and completing the circulation cleaning operation of refrigerant and separated pollution sources of the Z high-pressure component pipeline of the refrigeration and air-conditioning system.
The invention A can also be used as the refrigeration air-conditioning system Z high-low pressure part pipeline gas-liquid refrigerant and pollution source full recovery operation, the mechanical maintenance equipment is electrically connected with the compressor A11 to operate, the low pressure end generates vacuum suction, the low temperature gas-liquid refrigerant and pollution source of the refrigeration air-conditioning system Z high-low pressure part are discharged through the high pressure maintenance port S61 and the low pressure maintenance port S331, one end of the pipeline is connected with the high pressure maintenance port S6 and the low pressure maintenance port S33 of the mechanical maintenance equipment A of the invention, and is connected with the transmission control unit RT35, (the) high pressure working valves FC22, CH13, (the) low pressure working valve KC19, GC24 are closed, (the) vacuum high pressure working valve TI16, the vacuum low pressure working valve TI99, the vacuum suction working valve IN15 and the discharge working valve 1 are closed, the pipeline X12 is connected with the W71, the pipeline MB1 is connected with a multi-way connecting pipe VW4, and enters the gas-liquid separator C, and the gas-liquid refrigerant is gasified after series-parallel connected with the high pressure refrigerant and pollution source, the pollution source is stored in the lower chamber and is discharged by a discharge working valve OUT1 after the operation is finished, the low-temperature gaseous refrigerant is purified by an oil-water filter W16 and is gasified again by a gasification hole of a U-shaped pipeline W17, and connected to line MB1 and into dryer E88 and to the low pressure side of compressor a11, the low-temperature gaseous refrigerant is operated by a compressor A11, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, a line AF9 connected to oil filter B17 and an end line AD16 returning the filtered, chilled oil to compressor A11, an end line AF9 of oil filter B17 connected to a multi-way connection G9 and entering gas-liquid separator C, after the gaseous refrigerant is liquefied in the low-pressure serial-parallel pipeline and the pipeline gasification hole, the pipeline AF9 is provided with a one-way valve X2 and a pressure relief valve F9 and enters the refrigerant recovery and filling barrel D, the gas-liquid refrigerant and the pollution source of the Z high-low pressure component pipeline of the refrigeration air-conditioning system can be quickly recovered.
The invention A can also be used for the unidirectional recovery operation of the liquid refrigerant and the pollution source of the Z high-low pressure component pipeline of the refrigeration and air-conditioning system, and only needs to carry out the following steps that (opening) the low-pressure working valve GC24 of one branch or (opening) the low-pressure working valve KC19 of the other branch in the transmission control unit RT 35: both the high-pressure working valve FC22 and the high-pressure working valve CH13 are closed at (on) the low-pressure working valve GC 24; when the low-pressure working valve KC19 of the other branch is opened (opened), the high-pressure working valve FC22 and the high-pressure working valve CH13 are both closed, and the unidirectional recovery operation of the gas-liquid refrigerant and the pollution source can be carried out on the Z high-pressure and low-pressure component pipeline of the refrigeration and air-conditioning system.
The invention A can also be applied to the full filling operation of the Z liquid refrigerant of the refrigeration air-conditioning system, the mechanical maintenance equipment is electrically connected with the operation of a compressor A11, a high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant, a pipeline AF9 is connected with an oil filter B17 and a pipeline AD16 at one end to lead back the filtered refrigeration oil to be connected to the compressor A11, a pipeline AF9 at one end of the oil filter B17 is connected with a multi-way connecting pipe G9 and enters a gas-liquid separator C, after the gaseous refrigerant is liquefied IN a low-pressure serial-parallel pipeline and a pipeline gasification hole, a check valve X2 and a pressure relief valve F9 are arranged on the pipeline AF9 and enter a refrigerant recycling and filling barrel D, the refrigerant recycling and filling barrel D is connected with a refrigerant filling pipe D1, the pipeline D1 is connected with a conveying control unit RT35, (C) is opened) the high-pressure working valves 37FC 84, CH13, (C7 is closed) and the suction force of a vacuum high-pressure working valve TI 48, a vacuum low-pressure working valve TI 5, a vacuum working valve IN 5857324 and an OUT 57324 are closed, the pipeline is connected with the high-pressure maintenance port S6 and the low-pressure maintenance port S33 of the mechanical maintenance equipment A, one end of the pipeline is connected with the high-pressure maintenance port S61 and the low-pressure maintenance port S331 of the refrigeration air-conditioning system Z to be maintained, the high-pressure and low-pressure component pipelines of the mechanical maintenance equipment Z are filled with liquid refrigerants, the mixing of the refrigerants and pollution sources and the circulating cleaning rate of the refrigerants can be accelerated, and the unidirectional liquid refrigerant quantitative filling operation of the high-pressure and low-pressure component pipelines can also be performed, only a conveying control unit RT35 (opens) a high-pressure working valve FC22 or (opens) a high-pressure working valve CH13, (closes) low-pressure working valves KC19 and GC24, and (closes) a vacuum high-pressure working valve TI16, a vacuum low-pressure working valve TI99, a vacuum suction working valve IN15 and a discharge working valve OUT1 are needed, and an operation metering unit QA58 is used for enabling the weight value shown by the weight-measuring digit display to be zero, the weight value of the weight-measuring digit display is observed, and the weight value of the weight-measuring digit display is filled after the quantity of the refrigeration air-conditioning system Z reaches the set value, and the (closing) high-pressure working valve FC22 or the (closing) high-pressure working valve CH13 can finish the quantitative filling operation of the liquid refrigerant for the Z high-pressure and low-pressure component pipelines of the refrigeration and air-conditioning system.
After the recycling of the circulating cleaning operation is finished, the vacuum unit US38 is used for vacuumizing the Z high-low pressure component pipeline of the refrigeration air-conditioning system, the mechanical maintenance equipment is electrically connected with the vacuum pump T and the electromagnetic valve E1, the pipeline is connected with the conveying control unit RT35, the vacuum high-pressure working valve TI16 and the vacuum low-pressure working valve TI99 are opened (opened), the vacuum suction working valve IN15, the high-pressure working valve FC22, the CH13, the low-pressure working valve KC19, the GC24 and the discharge working valve OUT1 are closed (closed), the pipeline is connected with the A mechanical maintenance equipment high-pressure maintenance port S6 and the mechanical maintenance equipment low-pressure maintenance port S33, one end of the pipeline is connected with the Z high-pressure maintenance port S61 and the low-pressure maintenance port S331 of the refrigeration air-conditioning system to be maintained, and the pipeline vacuumizing operation of the Z high-low-pressure component of the refrigeration air-conditioning system is carried OUT.
The invention A implements the method that the refrigeration air-conditioning system Z fills new refrigeration oil, the vacuum pump T operates continuously and carries on the vacuumization operation to the Z high-low pressure component pipeline of the refrigeration air-conditioning system, close the vacuum low pressure working valve TI99, (open) the vacuum suction working valve IN15, by the vacuum suction of the high-pressure end, suck the new refrigeration oil of the new oilcan IN2 from the Z low pressure maintenance port S331 pipeline of the refrigeration air-conditioning system, and enter the interior of Z compressor of the refrigeration air-conditioning system, do not need to dismantle the Z high-low pressure component pipeline of the refrigeration air-conditioning system and can fill new refrigeration oil.
The invention A is electrically connected with a compressor A11 to operate by a mechanical maintenance device, a high-pressure high-temperature pipeline and a low-pressure pipeline generate a vacuum suction force, the high-pressure high-temperature pipeline and the low-pressure pipeline generate a vacuum suction force, the gas-liquid separation of a condenser, an expansion valve and a capillary tube is not needed, the refrigerant circulation cleaning and the pollution source separation of the high-pressure component pipeline and the low-pressure component pipeline of the refrigeration air-conditioning system Z can be realized by the invention A, the pollution source is discharged by a discharge working valve OUT1, the vacuum unit US38 carries OUT the vacuum pumping operation on the high-pressure component pipeline and the low-pressure component pipeline of the refrigeration air-conditioning system Z, the pipeline does not need to be disassembled to replace new refrigeration oil, and the metering unit QA58 can accurately measure the refrigerant quantity recovered and filled.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A cleaning device of a refrigeration air-conditioning system without a condenser, an expansion valve and a capillary tube is characterized by at least comprising a compression unit, a vacuum unit, a storage unit, a conveying control unit and a metering unit;
the mechanical maintenance equipment is electrically connected with the compressor for operation, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, the pipeline is connected to an oil filter and one end pipeline returns and connects the filtered refrigeration oil to the compressor, one end pipeline of the oil filter is connected to a multi-way connecting pipe and enters a gas-liquid separator, the gaseous refrigerant is liquefied in a low-pressure serial-parallel pipeline and a pipeline gasification hole, a one-way valve and a pressure relief valve are arranged on the pipeline and enters a refrigerant recycling and filling barrel, the refrigerant recycling and filling barrel is connected with a refrigerant filling pipe, the pipeline is connected with a conveying control unit, a high-pressure working valve is opened, a low-pressure working valve is closed, a vacuum high-pressure working valve, a vacuum low-pressure working valve, a vacuum suction working valve and a discharge working valve are closed, the pipeline is connected with a high-pressure maintenance port, one end of the pipeline is connected with a high-pressure maintenance port of a refrigeration and air-conditioning system to be maintained and enters a high-low-pressure component pipeline of the refrigeration and air-conditioning system, the low-temperature gas-liquid refrigerant and a pollution source are discharged through a low-pressure maintenance port, a pipeline is connected to the low-pressure maintenance port and is connected with a conveying control unit, a low-pressure working valve is opened, a high-pressure working valve is closed, the pipeline is connected with a refrigerant window, the pipeline is connected with a multi-way connecting pipe and enters a gas-liquid separator, the gas-liquid refrigerant and the pollution source are gasified through high-pressure serial and parallel pipelines, the pollution source is stored in a lower cavity and is discharged through the discharging working valve after the operation is finished, the low-temperature gas refrigerant is purified through an oil-water filter screen, is re-gasified through a U-shaped pipeline gasification hole, is connected to the pipeline and enters a dryer, and is connected to a low-pressure end of a compressor to operate and compress, so that the circulating cleaning operation of the refrigerant and the separated pollution source of a low-pressure component pipeline of the refrigeration air-conditioning system is finished;
the mechanical maintenance equipment is electrically connected with the compressor for operation, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, the pipeline is connected to an oil filter, one end pipeline of the oil filter is connected to a multi-way connecting pipe and enters a gas-liquid separator, the gaseous refrigerant is liquefied in a low-pressure serial-parallel pipeline and a pipeline gasification hole, a one-way valve and a pressure relief valve are arranged on the pipeline and enters a refrigerant recycling and filling barrel, the refrigerant recycling and filling barrel is connected with a refrigerant filling pipe, the refrigerant filling pipe is connected with a conveying control unit, a high-pressure working valve, a low-pressure working valve, a vacuum high-pressure working valve, a vacuum low-pressure working valve, a vacuum suction working valve and a discharge working valve are closed, the pipeline is connected with a low-pressure maintenance port, one end of the pipeline is connected with a low-pressure maintenance port of a refrigeration and air-conditioning system to be maintained and enters a high-low-pressure component pipeline of the refrigeration and air-conditioning system, the low-temperature gas-liquid refrigerant and a pollution source are discharged through a high-pressure maintenance port, a pipeline is connected with the high-pressure maintenance port and is connected with a conveying control unit, a low-pressure working valve is opened, the high-pressure working valve is closed, a pipeline is connected with a refrigerant window, the pipeline is connected with a multi-way connecting pipe and enters a gas-liquid separator, the gas-liquid refrigerant and the pollution source are gasified through high-pressure serial and parallel pipelines, the pollution source is stored in a lower cavity and is discharged through a discharge working valve after the operation is finished, the low-temperature gas refrigerant is purified through an oil-water filter screen, is re-gasified through a U-shaped pipeline gasification hole, is connected to the pipeline and enters a dryer, and is connected to a low-pressure end of a compressor to operate and compress, so that the circulating cleaning operation of the refrigerant and the separated pollution source of the high-pressure component pipeline of the refrigeration air-conditioning system is finished;
when the gas-liquid refrigerant and the pollution source of the high-low pressure component pipeline of the refrigeration air-conditioning system are completely recovered, the mechanical maintenance equipment is electrically connected with the compressor to operate, the low-pressure end generates vacuum suction, the low-temperature gas-liquid refrigerant and the pollution source of the high-low pressure component of the refrigeration air-conditioning system are discharged through the high-low pressure maintenance port, one end of the pipeline is connected with the high-low pressure maintenance port and is connected with the conveying control unit, the high-pressure working valve is closed, the low-pressure working valve is opened, the vacuum high-pressure working valve, the vacuum low-pressure working valve, the vacuum suction working valve and the discharge working valve are closed, the pipeline is connected with a refrigerant window, the pipeline is connected with a multi-way connecting pipe and enters the gas-liquid separator, the pollution source of the gas-liquid refrigerant and the pollution source are gasified by the high-pressure serial-parallel pipeline, the pollution source is stored in the lower cavity and is discharged by the discharge working valve after the operation is finished, and the low-temperature gas refrigerant is purified by the oil-water filter screen, the low-temperature gaseous refrigerant is operated by the compressor, the high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant, the pipeline is connected to an oil filter and one end pipeline leads back the filtered refrigeration oil to be connected to the compressor, the pipeline at one end of the oil filter is connected to a multi-way connecting pipe and enters a gas-liquid separator, and after the gaseous refrigerant is liquefied in the low-pressure serial-parallel pipeline and the pipeline gasification hole, the pipeline is provided with a one-way valve and a pressure relief valve and enters a refrigerant recycling and filling barrel, so that the gas-liquid refrigerant and a pollution source of the pipeline of the high-pressure and low-pressure part of the refrigeration air-conditioning system can be recycled;
when the gas-liquid refrigerant and the pollution source of the high-low pressure component pipeline of the refrigeration and air-conditioning system are recycled in one way, the high-pressure working valve is closed at the same time when one of the two low-pressure working valves is opened by the conveying control unit, and the gas-liquid refrigerant and the pollution source of the high-low pressure component pipeline of the refrigeration and air-conditioning system are recycled in one way; two parallel pipelines are arranged between the conveying control unit and the refrigerant window, and each pipeline is provided with a low-pressure working valve;
when the refrigeration air-conditioning system is fully filled with liquid refrigerant, the mechanical maintenance equipment is electrically connected with the compressor to operate, a high-pressure end pipeline generates high-pressure high-temperature gaseous refrigerant, the pipeline is connected to an oil filter and an end pipeline returns the filtered refrigeration oil to the compressor, one end pipeline of the oil filter is connected to a multi-way connecting pipe and enters a gas-liquid separator, the gaseous refrigerant is liquefied in a low-pressure serial-parallel pipeline and a pipeline gasification hole, a check valve and a pressure relief valve are arranged on the pipeline and enters a refrigerant recycling and filling barrel, the refrigerant recycling and filling barrel is connected with a refrigerant filling pipe, the pipeline is connected with a conveying control unit, a high-pressure working valve is opened, a low-pressure working valve is closed, a vacuum high-pressure working valve, a vacuum low-pressure working valve, a vacuum suction working valve and a discharge working valve are closed, the pipeline is connected with the high-low pressure maintenance port, and one end of the pipeline is connected with the high-low pressure maintenance port of the refrigeration air-conditioning system to be maintained, filling liquid refrigerant into the high-pressure and low-pressure component pipelines, accelerating the mixing of the refrigerant and a pollution source and the circulating cleaning rate of the refrigerant, and also performing unidirectional quantitative filling operation of the liquid refrigerant in the high-pressure and low-pressure component pipelines, wherein the quantitative filling operation of the liquid refrigerant can be completed only by opening a high-pressure working valve or opening the high-pressure working valve, closing a low-pressure working valve, closing a vacuum high-pressure working valve, a vacuum low-pressure working valve, a vacuum suction working valve and a discharge working valve by a conveying control unit and operating a metering unit to zero the weight value shown by a weight measurement digital display, watching the weight value of the weight measurement digital display, and closing the high-pressure working valve or closing the high-pressure working valve after the filling value reaches the set filling amount of the refrigeration air-conditioning system;
after the recycling of the circulating cleaning operation is finished, vacuumizing operation is carried out on the pipelines of the high-pressure and low-pressure components of the refrigeration air-conditioning system by a vacuum unit, mechanical maintenance equipment is electrically connected with a vacuum pump and an electromagnetic valve, the pipelines are connected with a conveying control unit, a vacuum high-pressure working valve and a vacuum low-pressure working valve are opened, a vacuum suction working valve, a high-pressure working valve, a low-pressure working valve and a discharge working valve are closed, the pipelines are connected with a high-pressure and low-pressure maintenance port, one end of each pipeline is connected with the high-pressure and low-pressure maintenance port of the refrigeration air-conditioning system to be maintained, and the vacuumizing operation of the pipelines of the high-pressure and low-pressure components of the refrigeration air-conditioning system is carried out;
when the method for filling new refrigeration oil into the refrigeration air-conditioning system is implemented, the vacuum pump continuously operates to vacuumize the high-low pressure component pipelines of the refrigeration air-conditioning system, the vacuum low-pressure working valve is closed, the vacuum suction working valve is opened, new refrigeration oil in a new oil can is sucked from the low-pressure maintenance port pipeline of the refrigeration air-conditioning system by virtue of the vacuum suction of the high-pressure end and enters the compressor of the refrigeration air-conditioning system, and the new refrigeration oil can be filled without disassembling the high-low pressure component pipelines of the refrigeration air-conditioning system;
the high-pressure high-temperature gaseous refrigerant is generated by a high-pressure end pipeline and enters a gas-liquid separator without being liquefied by gas of a condenser, an expansion valve and a capillary tube, an internal high-pressure serial-parallel pipeline is connected with the high-pressure serial-parallel pipeline, the gasified low-pressure serial-parallel pipeline in the upper cavity and the lower cavity recovers the gas-liquid refrigerant and a pollution source of a refrigeration air-conditioning system, a low-pressure pipeline and a refrigerant window of the gas-liquid separator are connected with a conveying control unit and are connected with a high-pressure and low-pressure maintenance port of the pipeline, one end of the pipeline is connected with the high-pressure and low-pressure maintenance port of the refrigeration air-conditioning system to be maintained, so that the high-pressure and low-pressure gaseous refrigerant is connected with the high-pressure and low-pressure component pipeline and the pollution source of the refrigeration air-conditioning system, the high-pressure and low-pressure gaseous refrigerant enters the gas-liquid separator without being liquefied by the condenser, the expansion valve and the capillary tube, the internal low-pressure serial-parallel pipeline and the pipeline gasification hole, and the high-pressure gaseous refrigerant in the serial-parallel pipeline are liquefied in the upper cavity and the lower cavity, the high-pressure and low-pressure series-parallel pipelines in the gas-liquid separator generate refrigerant gas-liquid state change in a cavity of the gas-liquid separator, so that gas-liquid refrigerant and pollution sources recovered by a refrigeration air-conditioning system are separated in an accelerated manner.
2. The cleaning device for refrigerating and air conditioning system without condenser, expansion valve and capillary tube as claimed in claim 1, wherein the cleaning device is used for circulating cleaning operation of gas-liquid refrigerant and separated pollution source of high and low pressure parts of refrigerating and air conditioning system, the metering unit is used for filling refrigerant and recovering refrigerant to high and low pressure parts of refrigerating and air conditioning system, the vacuum unit is used for vacuumizing high and low pressure parts of refrigerating and air conditioning system, detecting deterioration state of discharged pollution source and waste oil capacity and filling new refrigerating oil, and the high pressure meter and the low pressure meter are used for observing the function of refrigerating and air conditioning system.
3. A cleaning apparatus for refrigerating air conditioning system without condenser, expansion valve and capillary as claimed in claim 1, wherein the upper and lower chambers of the gas-liquid separator are connected by a plurality of high-pressure and low-pressure pipelines connected in series and in parallel, so as to liquefy refrigerant and accelerate separation of pollution sources, and the number of pipelines or the diameter of the pipelines can be increased or decreased according to the requirement.
4. A cleaning apparatus for a refrigerating air conditioning system without condenser, expansion valve and capillary as claimed in claim 1, wherein the upper chamber of the gas-liquid separator has a plurality of U-shaped pipes with gasification holes, and the number and diameter of the gasification holes are increased or decreased according to the requirement.
5. A cleaning apparatus for refrigerating air conditioning system without condenser, expansion valve and capillary as claimed in claim 1, wherein the gas-liquid separator and the lower chamber have a plurality of high and low pressure series-parallel pipelines and pipeline vaporizing holes, and the pipeline vaporizing holes are increased or decreased according to the required hole number and diameter radius.
6. A cleaning apparatus for refrigerating air conditioning system without condenser, expansion valve and capillary as claimed in claim 1, wherein the gas-liquid separator is divided into upper and lower chambers by oil-water filter net, and its housing has plural maintenance ports.
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| TW107144351A TWI725362B (en) | 2018-12-10 | 2018-12-10 | Refrigeration and air-conditioning system cleaning device |
| TW107144351 | 2018-12-10 |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW202022298A (en) | 2020-06-16 |
| TWI725362B (en) | 2021-04-21 |
| CN111288595A (en) | 2020-06-16 |
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