TW202022298A - Cleaning device for refrigeration and air conditioning system capable of fast cleaning the refrigerants and pollution source - Google Patents

Abstract

The invention (A) discloses a cleaning device for a refrigeration and air conditioning system (Z) without requiring a condenser, an expansion valve and a capillary, wherein a mechanical maintenance apparatus is electrically connected to a compressor (A11) to operate, a high-pressure end pipeline generates a high-pressure and high-temperature gaseous refrigerant, a low-pressure end pipeline generates a vacuum suction and, in addition, a conveyance control unit (RT35) is connected to to-be-maintained high-pressure and low-pressure maintenance ports (S61 and S331) of the refrigeration and air conditioning system (Z) by pipelines, so as to perform a circular cleaning operation for gaseous refrigerants and liquid refrigerants in high-pressure and low-pressure component pipelines and separation of pollution source. According to the invention (A), due to the gaseous and liquid changes of the refrigerants generated by high-pressure and low-pressure pipelines in serial-parallel connection and pipeline vaporization holes inside a chamber of a gas-liquid separator (C), the cleaned refrigerants and pollution source can be separated fast, wherein the separated refrigerants are recycled and the pollution source is discharged. With the invention (A), it is able to solve the problems that the flow speed for cleaning the pipelines of the refrigerants is negatively affected when using prior condenser, expansion valve and capillary tube, and the time of separating the refrigerants and the pollution source is excessively long. Therefore, with the invention (A), it is able to greatly reduce the operation time and production cost of the refrigeration and air conditioning mechanical maintenance apparatus.

Description

A cleaning device for refrigeration and air conditioning system without condenser, expansion valve and capillary tube

The invention A is a refrigerating and air-conditioning system Z cleaning device that does not require a condenser, expansion valve and capillary tube, which simplifies the condenser, expansion valve and capillary tube of the conventional refrigerating and air-conditioning system Z cleaning device, and uses another high and low pressure pipeline in series and parallel mode It presents a technology that can quickly transfer current (refrigerant flow rate) like a circuit without losing voltage (line pressure). It can circulate and clean the system pipeline refrigerant and separate pollution sources, increase the cleaning rate, and shorten the maintenance operation time of mechanical maintenance equipment And save manufacturing costs.

In recent years, due to the rapid deterioration of the earth’s global greenhouse effect and air pollution, in most occasions, a confined space has a clean and good air and a comfortable temperature, and a constant temperature air-conditioning system is installed. However, the refrigeration and air-conditioning system Z needs to be maintained after a period of use. However, the principle of the lubrication system of the refrigeration and air-conditioning system Z is quite different from that of the general mechanical lubrication system. The general machinery only needs to unscrew the screw or use the method of suction to discharge the pollution source, and replace it with new oil. Maintenance operations can be completed. However, the refrigeration and air-conditioning lubrication system involves complicated high and low pressure, high and low temperature gas-liquid refrigerants and refrigerating oil mixing methods to lubricate the compressor and various components, so that the maintenance operations require corresponding mechanical maintenance equipment. In the past, various manufacturers of cleaning and maintenance equipment for refrigeration and air-conditioning systems have developed various mechanical maintenance equipment. As the technology still uses the relevant old technology, only the appearance and some electrical equipment are modified, so the maintenance time is too long. I am engaged in For decades in the refrigeration and air-conditioning related industries, in order to improve this shortcoming, after years of The separation speed of the refrigerant and pollution source of the cleaning and maintenance equipment of the system Z is too slow. It is the traditional technology that the condenser, expansion valve and capillary tube limit the pressure difference, which affects the flow rate of the refrigerant during pipeline cleaning. In order to achieve rapid separation of the refrigerant and The source of pollution, and the refrigeration and air-conditioning system Z cleaning and maintenance equipment manufacturers and their technical personnel in the field have developed:

1. The traditional condenser, expansion valve and capillary tube use the limiting pressure difference to separate the refrigerant and the pollution source.

2. Electronic automatic expansion valve system.

3. Automatic pulse point release cleaning system.

4. All of the above technologies require a condenser, expansion valve and capillary tube to limit the pressure difference.

Based on the above-mentioned technology, I created Invention A with different thinking to solve the deficiencies of the above-mentioned technology.

At present, the cleaning machinery maintenance equipment of the conventional refrigeration and air-conditioning system Z, such as the national invention announcement I318288 "Multifunctional Refrigerant Recovery Machine", as shown in the first figure, contains a compressor 21, a condenser 31, a gas-liquid separator 41, and heating The heater 42 and capillary tubes 25, 43, 45, the above components not only have a long refrigerant pipeline, but also limit the refrigerant flow in the pipeline, but also the heater inside the gas-liquid separator 41 may still be used in safety.

As shown in the second figure of the national new bulletin 244010 "Filtering device for refrigerant recovery and cleaning system", it contains a compressor 42, condenser 60, expansion valve 62 and gas-liquid separator 41. The above components are not only refrigerant The pipeline is long and the refrigerant flow in the pipeline is limited. The above-mentioned cleaning devices for refrigeration and air-conditioning systems are all traditionally known technologies.

Since this technology has been passed down for decades and remains unchanged, the separation speed of the refrigerant and the pollution source takes too long. Among all mechanical maintenance and oil change equipment, the refrigeration and air-conditioning system Z has the longest oil change time and the most difficult.

The invention A is operated by mechanical equipment electrically connected to the compressor A11. The high-pressure and high-temperature gas refrigerant generated by the high-pressure end pipeline and the vacuum suction generated by the low-pressure end pipeline do not need to liquefy the gas through the condenser, expansion valve and capillary tube. Liquid separator C has internal high-pressure series-parallel pipelines, and vaporizes the low-temperature gas liquid refrigerant and pollution sources of the low-pressure series-parallel pipelines in the upper and lower chambers, and low-pressure series-parallel pipelines and the low-temperature gas liquid refrigerant of the pipeline vaporization holes. Liquefaction of high-pressure series and parallel pipelines of high temperature gaseous refrigerant, all actions are completed in the internal series and parallel pipelines of the gas-liquid separator C and the chamber of the pipeline vaporization hole, without the need for condenser, expansion valve and capillary gas liquefaction, simplifying the above The components of the invention can shorten the refrigerant pipeline of the invention A and increase the system pressure, increase the flow rate of the refrigerant cleaning of the high and low pressure components of the refrigeration and air-conditioning system Z of the mechanical maintenance equipment, and accelerate the separation of the refrigerant and the pollution source.

A‧‧‧The invention

DR93‧‧‧Compression Unit

US38‧‧‧Vacuum unit

OQ29‧‧‧Storage unit

RT35‧‧‧Conveying control unit

QA58‧‧‧Measurement unit

A11‧‧‧Compressor

B17‧‧‧Oil Filter

E88‧‧‧Dryer

C‧‧‧Gas-liquid separator

W71‧‧‧Refrigerant window

G9, G1, VW4‧‧‧Multi-way connecting pipe

S1, S2, S3‧‧‧Service port

X2‧‧‧One-way valve

OUT1‧‧‧Exhaust valve

OUT29‧‧‧Waste Oil Can

T‧‧‧Vacuum pump

E1‧‧‧Solenoid valve

TI16‧‧‧Vacuum high pressure working valve

TI99‧‧‧Vacuum low pressure working valve

IN15‧‧‧Vacuum suction valve

IN2‧‧‧New Oil Can

D‧‧‧Refrigerant recovery and filling barrel

FB1‧‧‧Barrel Pressure Gauge

F9‧‧‧Pressure relief valve

FC22, CH13‧‧‧High pressure working valve

KC19, GC24‧‧‧Low pressure working valve

S6‧‧‧High pressure maintenance port for mechanical maintenance equipment

S33‧‧‧Low pressure maintenance port for mechanical maintenance equipment

I32‧‧‧High pressure meter

K9‧‧‧Low Pressure Meter

Z‧‧‧Refrigeration and Air Conditioning System

S61‧‧‧High pressure service port

S331‧‧‧Low pressure service port

W17‧‧‧U type pipe

W16‧‧‧Oil and water filter

W11, W12, W13, W14, W15‧‧‧Low pressure series and parallel pipelines

W1, W2, W3, W4, W5‧‧‧Pipeline gasification hole

G11, G12, G13, G14, G15, G1, GE3‧‧‧High-voltage series and parallel pipelines

MB1, AF9, AD16, D1, X12‧‧‧Tubing

The first and second figures are the schematic diagrams of the Z cleaning device of the traditional refrigeration and air-conditioning system, the condenser, the expansion valve and the capillary tube plane circulation.

The third figure is the high and low pressure maintenance ports S6 and S33 of the present invention. One end of the pipeline is connected to the refrigerating and air-conditioning system Z high and low pressure maintenance ports S61 and S331 to be maintained, and the high and low pressure components pipeline refrigerant and pollution source cyclic cleaning operation schematic diagram.

The fourth figure is the gas-liquid separator C of the present invention A, which does not need a condenser and limits the expansion of the pressure difference Valve and capillary tube, its internal high pressure G11, G12, G13, G14, G15, G1, CE3 series and parallel pipelines, and low pressure W11, W12, W13, W14, W15 series and parallel pipelines, pipeline gasification holes W1, W2 , W3, W4, W5, as well as the oil-water filter W16, and the U-shaped pipeline W17 with several pipeline vaporization holes.

The following is a specific example to illustrate the implementation of the present invention. Those who know this skill can easily understand the other advantages and effects of the present invention A from the content disclosed in this specification. The present invention A can also be implemented or applied by other different specific examples, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention.

First of all, please refer to the fourth figure, which shows a refrigeration and air-conditioning system Z cleaning device that does not require a condenser, expansion valve and capillary tube in this case. The present invention A includes at least: Compression unit DR93, vacuum unit US38, storage unit OQ29, conveying control unit RT35, metering unit QA58.

Compression unit DR93 includes: compressor A11, oil filter B17, dryer E88, gas-liquid separator C and maintenance ports S1, S2, S3 on the cavity of gas-liquid separator C, and a check valve X2, discharge valve OUT1, waste oil pot OUT29.

The vacuum unit US38 includes: a vacuum pump T and a solenoid valve E1.

The storage unit OQ29 includes: a refrigerant recovery filling barrel D and a refrigerant filling pipe D1, a recovery pipeline AF9, a pressure relief valve F9 and a barrel pressure gauge FB1.

The conveying control unit RT35 includes: high pressure working valve FC22, CH13 and high pressure meter I32, low pressure Working valves KC19, GC24 and low pressure gauge K9, vacuum high pressure working valve TI16, vacuum low pressure working valve TI99, refrigerant window W71, vacuum suction working valve IN15, new oil pot IN2, high pressure maintenance port S6, low pressure maintenance port S33 and for maintenance The refrigeration and air-conditioning system Z high and low pressure maintenance ports S61, S331.

The measuring unit QA58 includes: a full-function weight measurement digital display and weight measurement components, which can accurately measure the weight of refrigerant filling and recycling.

In the invention A, the mechanical maintenance equipment is electrically connected to the compressor A11 to operate. The high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant. The pipeline AF9 is connected to the oil filter B17 and one end pipeline AD16 connects the filtered refrigerating oil to Compressor A11 and oil filter B17 one end pipeline AF9 is connected to a multi-way connecting pipe G9, the connecting pipeline connects several high-pressure series and parallel pipelines G11, G12, G13, G14, G15, and its pipeline is connected to the lower cavity One of the chambers is connected to the multi-way connecting pipe G1 and connected to the series high-pressure pipeline GE3. After the gaseous refrigerant is liquefied in the low-pressure series-parallel pipeline and the pipeline gasification hole, a one-way valve X2 and a pressure relief are installed on the pipeline AF9. Valve F9, and enter the refrigerant recovery filling barrel D, the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, and its pipeline D1 is connected to the conveying control unit RT35, and high pressure working valves FC22, CH13 and low pressure working valves KC19, GC24 The pipeline is connected to the high and low pressure maintenance ports S6 and S33 of the present invention A. One end of the pipeline is connected to the refrigeration and air conditioning system Z high and low pressure maintenance ports S61 and S331 to be maintained, and enters the refrigeration and air conditioning system Z high and low pressure component pipeline. The gas-liquid refrigerant and pollution sources are discharged through the refrigeration and air-conditioning system Z high and low pressure maintenance ports S61, S331. The pipelines are connected to the A high and low pressure maintenance ports S6 and S33 of the present invention, and are connected to the conveying control unit RT35. The high-pressure working valves FC22, CH13 and Low-pressure working valves KC19, GC24 and pipeline X12 are connected to refrigerant window W71, pipeline MB1 is connected to a multi-way connecting pipe VW4, and connected to the internal low-pressure series and parallel pipelines W11, W12, W13, W14, W15 of gas-liquid separator C, and Pipeline gasification holes W1, W2, W3, W4, W5, and gas and liquid After the high-pressure series and parallel pipelines are gasified, the pollution source is stored in the lower chamber and discharged from the discharge valve OUT1 after the operation is completed. The low-temperature gas refrigerant is purified by the oil-water filter W16, and then the U-shaped tube The gasification hole W17 is re-vaporized and connected to the pipeline MB1 and enters the dryer E88, and is connected to the low-pressure end of the compressor A11 for operation and compression. In addition, there is a discharge valve OUT1 and waste outside the chamber under the gas-liquid separator C. The oiler OUT29, and its shell have multiple maintenance ports S1, S2, S3, which can be connected with the Z cleaning device of the refrigeration and air-conditioning system.

Next, please continue to refer to the third and fourth figures; the present invention A is a refrigeration and air-conditioning system Z cleaning device that does not require a condenser, expansion valve and capillary tube, and is electrically connected to the compressor through mechanical maintenance equipment A11 runs, the high-pressure end pipeline produces high-pressure and high-temperature gaseous refrigerant, the pipeline AF9 is connected to the oil filter B17 and one end of the pipeline AD16 connects the filtered refrigerating oil to the compressor A11, and one end of the oil filter B17 The circuit AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C. After the gaseous refrigerant is liquefied in the low-pressure series-parallel pipeline and the pipeline gasification hole, a one-way valve X2 and a drain are installed on the pipeline AF9. The pressure valve F9 enters the refrigerant recovery filling barrel D, and the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, and its pipeline D1 is connected to the conveying control unit RT35, (open) high pressure working valve FC22, (close) low pressure Working valve GC24, in parallel (closed) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and the pipeline is connected to the invention A high-pressure maintenance port S6, and one end of the pipeline is connected to the desired maintenance Baozhi refrigeration and air conditioning system Z high-pressure maintenance port S61, and enters the refrigeration and air-conditioning system Z high and low pressure component pipeline, its low-temperature gas liquid refrigerant and pollution sources are discharged through low pressure maintenance port S331, and the pipeline is connected to the present invention A low pressure maintenance port S33, and Connected to the conveying control unit RT35, (open) low-pressure working valve KC19, (closed) high-pressure working valve CH13, pipeline X12 is connected to refrigerant window W71, pipeline MB1 is connected to a multi-way connecting pipe VW4, and goes in parallel Enter the gas-liquid separator C, and the gas-liquid refrigerant and pollution sources are vaporized in the high-pressure series and parallel pipelines. The pollution sources are stored in the lower chamber and discharged from the discharge valve OUT1 after the operation is completed. The low-temperature gas refrigerant is filtered by oil and water After the net W16 is purified, it is re-vaporized from the U-shaped pipeline W17 vaporization hole, and connected to the pipeline MB1 and enters the dryer E88, and is connected to the low pressure end of the compressor A11 for operation and compression, completing the Z low pressure component pipeline of the refrigeration and air conditioning system Refrigerant and separate pollution source cycle cleaning operation.

In the invention A, the mechanical maintenance equipment is electrically connected to the compressor A11 to operate. The high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant. The pipeline AF9 is connected to the oil filter B17 and one end pipeline AD16 connects the filtered refrigerating oil to Compressor A11 and oil filter B17 one end pipeline AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C, and the gaseous refrigerant is liquefied in the low-pressure series and parallel pipelines and the pipeline gasification hole, and then the pipeline A one-way valve X2 and a pressure relief valve F9 are set on the road AF9, and enter the refrigerant recovery filling barrel D, and the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, and the pipeline D1 is connected to the delivery control unit RT35, (Open) high-pressure working valve CH13, (close) low-pressure working valve KC19, and (close) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and pipeline connection of invention A Low-pressure maintenance port S33, one end of the pipeline is connected to the refrigeration and air-conditioning system Z low-pressure maintenance port S331 to be maintained, and enters the refrigeration and air-conditioning system Z high and low-pressure parts pipeline. Its low-temperature gas liquid refrigerant and pollution sources are discharged through the high-pressure maintenance port S61. The circuit is connected to the high-pressure maintenance port S6 of the present invention A, and is connected to the conveying control unit RT35, (open) low-pressure working valve GC24, (closed) high-pressure working valve FC22, pipeline X12 is connected to refrigerant window W71, pipeline MB1 is connected to a multi-channel Connect the pipe VW4 and enter the gas-liquid separator C. The gas-liquid refrigerant and pollution originate from the high-pressure series and parallel pipelines. After gasification, the pollution source is stored in the lower chamber and discharged by the discharge valve OUT1 after the operation is completed. After the gaseous refrigerant is purified by the oil-water filter W16, it is vaporized by the U-shaped pipe W17 Re-vaporize, connect to pipeline MB1 and enter dryer E88, and connect to the low-pressure end of compressor A11 to operate and compress to complete the cycle cleaning of refrigerant and separate pollution sources in the Z high-pressure component pipeline of the refrigeration and air-conditioning system.

The invention A can also be used for the full recovery of gas and liquid refrigerants and pollution sources in the high and low pressure parts of the refrigeration and air conditioning system Z. The mechanical maintenance equipment is electrically connected to the compressor A11 to operate, and the low pressure end generates vacuum suction. The low-temperature gas liquid refrigerant and the pollution source are discharged through the high and low pressure maintenance ports S61 and S331. One end of the pipeline is connected to the A high and low pressure maintenance ports S6 and S33 of the present invention, and is connected to the conveying control unit RT35. (Close) the high pressure working valves FC22, CH13, (Open) low pressure working valves KC19, GC24, and (close) vacuum high pressure working valve TI16, vacuum low pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and pipe X12 is connected to refrigerant window W71, pipe MB1 is connected A multi-way connecting pipe VW4 enters the gas-liquid separator C, and the gas-liquid refrigerant and pollution originate from the high-pressure series and parallel pipelines. After gasification, the pollution source is stored in the lower chamber and discharged from the discharge valve OUT1 after the operation is completed After being purified by the oil-water filter W16, the low-temperature gaseous refrigerant is re-gasified from the gasification hole of the U-shaped pipe W17, connected to the pipe MB1 and enters the dryer E88 and connected to the low pressure end of the compressor A11. The low-temperature gaseous refrigerant After compressor A11 runs, the high-pressure end pipeline produces high-pressure and high-temperature gas refrigerant. Its pipeline AF9 is connected to oil filter B17 and one end of pipeline AD16 connects the filtered refrigerating oil to compressor A11 and oil filter B17. One end of the pipeline AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C. After the gaseous refrigerant is liquefied in the low-pressure series-parallel pipeline and the pipeline gasification hole, a check valve X2 is installed on the pipeline AF9 And a pressure relief valve F9, and enter the refrigerant recovery filling barrel D, you can quickly recover the gas and liquid refrigerant and the pollution source of the high and low pressure components of the refrigeration and air conditioning system Z.

The invention A can also be applied to the pipeline gas liquid refrigerant and pollution For the one-way recovery operation of the dye source, only the conveying control unit RT35, (open) the low-pressure working valve GC24 or (open) the low-pressure working valve KC19, and (close) the high-pressure working valve FC22, CH13, can control the refrigeration and air-conditioning system. The low-pressure component pipeline implements one-way recovery of gas and liquid refrigerant and pollution sources.

The invention A can also be used for the full filling operation of the liquid refrigerant of the refrigeration and air-conditioning system Z. The mechanical maintenance equipment is electrically connected to the compressor A11 to operate. The high-pressure end pipeline generates high-pressure and high-temperature gas refrigerant, and the pipeline AF9 is connected to the oil filter B17 and one end The pipeline AD16 connects the filtered refrigerating oil to the compressor A11, and the one end pipeline AF9 of the oil filter B17 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C, and the gaseous refrigerant is connected to the low-pressure series and parallel pipes After the gasification hole of the pipeline and pipeline is liquefied, a one-way valve X2 and a pressure relief valve F9 are installed on the pipeline AF9, and enter the refrigerant recovery filling barrel D, and the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, its pipeline D1 is connected to the conveying control unit RT35, (open) high pressure working valve FC22, CH13, (close) low pressure working valve KC19, GC24, and (close) vacuum high pressure working valve TI16, vacuum low pressure working valve TI99, vacuum suction The working valve IN15 and the discharge working valve OUT1 are connected to the high and low pressure maintenance ports S6 and S33 of the invention A. One end of the pipeline is connected to the high and low pressure maintenance ports S61 and S331 of the refrigerating and air-conditioning system to be maintained, and the liquid refrigerant is filled with them High and low pressure component pipelines can accelerate the mixing of refrigerant and pollution sources and the cycle of refrigerant cleaning rate. It can also be used for one-way liquid refrigerant quantitative filling operations in high and low pressure components pipelines. Only the delivery control unit RT35 (open) the high pressure working valve FC22 Or (open) high-pressure working valve CH13, (close) low-pressure working valve KC19, GC24, and (close) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and operating metering unit After QA58 resets the weight value shown on the digital display of weight measurement to zero, and watch the weight value of the digital display of weight measurement, after the filling value reaches the set filling amount of refrigeration and air conditioning system Z, (close) the high pressure working valve FC22 or ( Close) high-pressure working valve CH13, to complete the freezing Air-conditioning system Z high and low pressure component pipelines implement quantitative filling operation of liquid refrigerant.

After the recycling of the cycle cleaning operation is completed, the invention A uses the vacuum unit US38 to vacuumize the high and low pressure components of the refrigeration and air conditioning system Z. The mechanical maintenance equipment is electrically connected to the vacuum pump T and the solenoid valve E1, and the pipeline Connect the conveying control unit RT35, (open) vacuum high pressure working valve TI16 and vacuum low pressure working valve TI99, and (close) vacuum suction working valve IN15, high pressure working valves FC22, CH13 and low pressure working valves KC19, GC24 and discharge working valve OUT1, The pipeline is connected to the high and low pressure maintenance ports S6 and S33 of the present invention A, and one end of the pipeline is connected to the refrigerating and air-conditioning system Z high and low pressure maintenance ports S61 and S331 to be maintained, and the vacuuming operation of the high and low pressure component pipelines of the refrigeration and air conditioning system Z is carried out.

The invention A implements the refrigerating and air-conditioning system Z refilling new refrigerating oil method, the vacuum pump T continues to operate the refrigeration and air-conditioning system Z high and low pressure component pipelines to perform vacuuming operations, (close) vacuum low pressure working valve TI99, (open) vacuum suction working valve IN15, with the vacuum suction of the high-pressure end, sucks the new refrigerating oil from the new oil tank IN2 from the low-pressure maintenance port S331 of the refrigeration and air-conditioning system, and enters the Z compressor of the refrigeration and air-conditioning system, without disassembling the refrigerating and air-conditioning system Z high and low pressure The component pipeline can be filled with new refrigerant oil.

The invention A is operated by the mechanical maintenance equipment electrically connected to the compressor A11, the high and low pressure end pipelines produce high pressure, high temperature and the vacuum suction generated by the low pressure end pipelines, which can be achieved without the need for condenser, expansion valve and capillary gas liquefaction. In the invention A, the refrigerating and air-conditioning system Z, the high and low pressure component pipeline refrigerant cycle cleaning and separation of pollution sources, the pollution source is discharged through the discharge valve OUT1, the vacuum unit US38 vacuumizes the refrigeration and air conditioning system Z high and low pressure component pipelines, There is no need to disassemble the pipeline to replace the new refrigerant. The metering unit QA58 can accurately measure the amount of refrigerant recovered and filled.

A‧‧‧The invention

DR93‧‧‧Compression Unit

US38‧‧‧Vacuum unit

OQ29‧‧‧Storage unit

RT35‧‧‧Conveying control unit

QA58‧‧‧Measurement unit

A11‧‧‧Compressor

B17‧‧‧Oil Filter

E88‧‧‧Dryer

C‧‧‧Gas-liquid separator

W71‧‧‧Refrigerant window

G9, G1, VW4‧‧‧Multi-way connecting pipe

S1, S2, S3‧‧‧Service port

X2‧‧‧One-way valve

OUT1‧‧‧Exhaust valve

OUT29‧‧‧Waste Oil Can

T‧‧‧Vacuum pump

E1‧‧‧Solenoid valve

TI16‧‧‧Vacuum high pressure working valve

TI99‧‧‧Vacuum low pressure working valve

IN15‧‧‧Vacuum suction valve

IN2‧‧‧New Oil Can

D‧‧‧Refrigerant recovery and filling barrel

FB1‧‧‧Barrel Pressure Gauge

F9‧‧‧Pressure relief valve

FC22, CH13‧‧‧High pressure working valve

KC19, GC24‧‧‧Low pressure working valve

S6‧‧‧High pressure service port

S33‧‧‧Low pressure service port

I32‧‧‧High pressure meter

K9‧‧‧Low Pressure Meter

Z‧‧‧Refrigeration and Air Conditioning System

S61‧‧‧High pressure service port

S331‧‧‧Low pressure service port

W17‧‧‧U type pipe

W16‧‧‧Oil and water filter

W11, W12, W13, W14, W15‧‧‧Low pressure series and parallel pipelines

W1, W2, W3, W4, W5‧‧‧Pipeline gasification hole

G11, G12, G13, G14, G15, G1, GE3‧‧‧High-voltage series and parallel pipelines

MB1, AF9, AD16, D1, X12‧‧‧Tubing

Claims (6)

A refrigerating and air-conditioning system cleaning device that does not require a condenser, expansion valve and capillary tube at least includes: a compression unit DR93, a vacuum unit US38, a storage unit OQ29, a conveying control unit RT35 and a metering unit QA58. The invention A is a refrigeration and air-conditioning system Z cleaning device that does not require a condenser, expansion valve and capillary tube. The compressor A11 is electrically connected to operate by mechanical maintenance equipment. The high-pressure end pipeline generates high-pressure and high-temperature gas refrigerant, and its pipeline AF9 Connected to the oil filter B17 and one end pipe AD16 to connect the filtered refrigerating oil to the compressor A11, and one end pipe AF9 of the oil filter B17 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C, And after the gaseous refrigerant is liquefied in the low-pressure series and parallel pipelines and pipeline gasification holes, a one-way valve X2 and a pressure relief valve F9 are installed on the pipeline AF9, and enter the refrigerant recovery filling barrel D, and the refrigerant is recovered and filled Barrel D is connected to a refrigerant filling pipe D1, and its pipeline D1 is connected to the delivery 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, vacuum suction working valve IN15 and discharge working valve OUT1, and the pipeline is connected to the invention A high-pressure maintenance port S6, one end of the pipeline is connected to the refrigeration and air-conditioning system Z high-pressure maintenance port S61 to be maintained, and enters the refrigeration and air-conditioning system Z high The low-pressure component pipeline, the low-temperature gas liquid refrigerant and the pollution source are discharged through the low-pressure maintenance port S331, the pipeline is connected to the low-pressure maintenance port S33 of the present invention, and is connected with the conveying control unit RT35, (open) low-pressure working valve KG19, (close) High-pressure working valve CH13, pipeline X12 is connected to refrigerant window W71, pipeline MB1 is connected to a multi-way connecting pipe VW4, and enters the gas-liquid separator C, and the gas-liquid refrigerant and pollution originate from the gasification of the high-pressure series and parallel pipelines. The pollution source is stored in the lower chamber and discharged from the discharge valve OUT1 after the operation is completed. The low-temperature gaseous refrigerant is purified by the oil-water filter W16 and then gasified by the U-shaped pipe W17 gasification hole and connected to the pipe MB1 enters the dryer E88, and is connected to the low-pressure end of the compressor A11 to operate and compress, to complete the cycle cleaning of the refrigerant and the separation of pollution sources in the Z low-pressure component pipeline of the refrigeration and air-conditioning system. In the invention A, the mechanical maintenance equipment is electrically connected to the compressor A11 to operate. The high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant. The pipeline AF9 is connected to the oil filter B17 and one end pipeline AD16 connects the filtered refrigerating oil to Compressor A11 and oil filter B17 one end pipeline AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C, and the gaseous refrigerant is liquefied in the low-pressure series and parallel pipelines and the pipeline gasification hole, and then the pipeline A one-way valve X2 and a pressure relief valve F9 are set on the road AF9, and enter the refrigerant recovery filling barrel D, and the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, and the pipeline D1 is connected to the delivery control unit RT35, (Open) high-pressure working valve CH13, (close) low-pressure working valve KC19, and (close) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and pipeline connection of invention A Low-pressure maintenance port S33, one end of the pipeline is connected to the refrigeration and air-conditioning system Z low-pressure maintenance port S331 to be maintained, and enters the refrigeration and air-conditioning system Z high and low-pressure parts pipeline. Its low-temperature gas liquid refrigerant and pollution sources are discharged through the high-pressure maintenance port S61. The circuit is connected to the high-pressure maintenance port S6 of the present invention A, and is connected to the conveying control unit RT35, (open) low-pressure working valve GC24, (closed) high-pressure working valve FC22, pipeline X12 is connected to refrigerant window W71, pipeline MB1 is connected to a multi-channel Connect the pipe VW4 and enter the gas-liquid separator C. The gas-liquid refrigerant and pollution originate from the high-pressure series and parallel pipelines. After gasification, the pollution source is stored in the lower chamber and discharged by the discharge valve OUT1 after the operation is completed. After the gaseous refrigerant is purified by the oil-water filter W16, it is re-vaporized from the U-shaped pipe W17 gasification hole, and connected to the pipe MB1 and enters the dryer E88, and connected to the low pressure end of the compressor A11 for operation and compression to complete the refrigeration and air conditioning system Z high-pressure parts pipeline refrigerant and separation of pollution sources cycle cleaning operations. The invention A can also be used as a refrigeration and air-conditioning system Z high and low pressure component pipeline gas liquid refrigerant and full return of pollution sources The mechanical maintenance equipment is electrically connected to the compressor A11 to operate. The low-pressure end produces vacuum suction. The low-temperature gas liquid refrigerant and the pollution source of the high and low pressure components of the refrigeration and air-conditioning system Z are discharged through the high and low pressure maintenance ports S61 and S331. One end of the pipeline is connected to the Invented A high and low pressure maintenance ports S6 and S33, and connected with the conveying control unit RT35, (closed) high pressure working valves FC22, CH13, (open) low pressure working valves KC19, GC24, and (closed) vacuum high pressure working valve TI16, vacuum low pressure Working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and pipeline X12 is connected to refrigerant window W71, pipeline MB1 is connected to a multi-way connecting pipe VW4, and enters gas-liquid separator C, and gas-liquid refrigerant and pollution originate from After the high-pressure series and parallel pipelines are vaporized, the pollution source is stored in the lower chamber and discharged from the discharge valve OUT1 after the operation is completed. After the low-temperature gas refrigerant is purified by the oil-water filter W16, it is vaporized by the U-shaped pipeline W17. Re-vaporize and connect to pipeline MB1 and enter the dryer E88 and connect to the low-pressure end of compressor A11. The low-temperature gas refrigerant runs through compressor A11, and the high-pressure end pipeline generates high-pressure and high-temperature gas refrigerant, and its pipeline AF9 is connected To the oil filter B17 and one end of the pipeline AD16 connect the filtered refrigerating oil to the compressor A11, and one end of the oil filter B17 pipeline AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C, and After the gaseous refrigerant is liquefied in the low-pressure series and parallel pipelines and pipeline gasification holes, a one-way valve X2 and a pressure relief valve F9 are installed on the pipeline AF9, and enter the refrigerant recovery filling barrel D, and the refrigeration and air-conditioning system can be Z The gas and liquid refrigerant and pollution sources in the pipelines of high and low pressure components are quickly recovered. The invention A can also be applied to the one-way recovery operation of the gas and liquid refrigerant and the pollution source in the pipeline of the high and low pressure components of the refrigeration and air-conditioning system. Only the conveying control unit RT35, (open) low pressure working valve GC24 or (open) low pressure working valve KC19, And (close) the high-pressure working valve FC22, CH13, you can implement gas-liquid refrigerant and pollution source one-way recovery operation for the Z high and low pressure component pipeline of the refrigeration and air conditioning system. The invention A can also be used for full filling operation of liquid refrigerant in refrigeration and air-conditioning system Z, and electrical connection of mechanical maintenance equipment Connected to compressor A11 for operation, the high-pressure end pipeline generates high-pressure and high-temperature gas refrigerant. Its pipeline AF9 is connected to oil filter B17 and one end of pipeline AD16 connects the filtered refrigerating oil to compressor A11 and oil filter B17. One end of the pipeline AF9 is connected to a multi-way connecting pipe G9 and enters the gas-liquid separator C. After the gaseous refrigerant is liquefied in the low-pressure series-parallel pipeline and the pipeline gasification hole, a check valve X2 is installed on the pipeline AF9 And a pressure relief valve F9, and enter the refrigerant recovery filling barrel D, and the refrigerant recovery filling barrel D is connected to a refrigerant filling pipe D1, the pipeline D1 is connected to the delivery control unit RT35, and the high pressure working valves FC22, CH13 are (open) , (Close) low-pressure working valve KC19, GC24, and (close) vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and pipeline connection A high and low pressure maintenance port S6 of the present invention , S33, one end of the pipeline is connected to the high and low pressure maintenance ports S61, S331 of the refrigeration and air conditioning system to be maintained, and the liquid refrigerant is filled with the high and low pressure parts of the pipeline, which can accelerate the mixing of the refrigerant and the pollution source and the cycle cleaning rate of the refrigerant. For the one-way liquid refrigerant quantitative filling operation of the high and low pressure parts pipeline, only the transfer control unit RT35, (open) high pressure working valve FC22 or (open) high pressure working valve CH13, (close) low pressure working valve KC19, GC24, and ( Close) Vacuum high-pressure working valve TI16, vacuum low-pressure working valve TI99, vacuum suction working valve IN15 and discharge working valve OUT1, and operate the measuring unit QA58 to reset the weight value shown on the weighing digital display to zero, and watch its weighing digits After the weight value of the display reaches the set filling amount of the refrigeration and air-conditioning system Z, (close) the high-pressure working valve FC22 or (close) the high-pressure working valve CH13 to complete the implementation of the high and low pressure components of the refrigeration and air-conditioning system Z Liquid refrigerant quantitative filling operation. After the recycling cleaning operation of the invention A is completed, the vacuum unit US38 is used to vacuum the pipelines of the high and low pressure components of the refrigeration and air conditioning system Z. The mechanical maintenance equipment is electrically connected to the vacuum pump T and the electromagnetic valve E1, and the pipeline Connect the conveying control unit RT35, (open) vacuum high pressure working valve TI16 and vacuum Low-pressure working valve TI99, and (closed) vacuum suction working valve IN15, high-pressure working valves FC22, CH13, low-pressure working valves KC19, GC24 and discharge working valve OUT1, and pipeline connection with the invention A high and low pressure maintenance port S6, S33, which One end of the pipeline is connected to the refrigerating and air-conditioning system Z high and low pressure maintenance ports S61 and S331 to be maintained, and the pipeline of the refrigerating and air-conditioning system Z high and low pressure parts pipeline is vacuumed. The invention A implements the refrigerating and air-conditioning system Z refilling new refrigerating oil method, the vacuum pump T continues to operate the refrigeration and air-conditioning system Z high and low pressure component pipelines to perform vacuuming operations, (close) vacuum low pressure working valve TI99, (open) vacuum suction working valve IN15, with the vacuum suction of the high-pressure end, sucks the new refrigerating oil from the new oil tank IN2 from the low-pressure maintenance port S331 of the refrigeration and air-conditioning system, and enters the Z compressor of the refrigeration and air-conditioning system, without disassembling the refrigerating and air-conditioning system Z high and low pressure The component pipeline can be filled with new refrigerant oil. The invention A is operated by the mechanical maintenance equipment electrically connected to the compressor A11. The high-pressure end pipeline generates high-pressure and high-temperature gaseous refrigerant without the need for gas liquefaction through the condenser, expansion valve and capillary tube to enter the gas-liquid separator C. The internal high-pressure string Parallel pipelines G11, G12, G13, G14, G15, G1, GE3, and vaporize the low-pressure series and parallel pipelines in the upper and lower chambers to recover the gas-liquid refrigerant and pollution sources of the refrigeration and air-conditioning system Z, and the low-pressure pipe of the gas-liquid separator C Road MB1, refrigerant windows W71 and X12 are connected to the conveying control unit RT35, and connected to the pipeline A high and low pressure maintenance ports S6 and S33 of the present invention, and one end of the pipeline is connected to the refrigeration and air conditioning system Z high and low pressure maintenance ports S61, S331 to be maintained , It is connected with the high and low pressure component pipeline of the refrigeration and air conditioning system, and the gas and liquid refrigerant and the pollution source of the high and low pressure component pipeline are recovered. It does not need to liquefy the gas through the condenser, expansion valve and capillary tube and enter the gas-liquid separator C. Internal low-pressure series-parallel pipelines W11, W12, W13, W14, W15 and pipeline gasification holes W1, W2, W3, W4, W5, and liquefy high-pressure series-parallel pipelines G11, G12, G13, G14, The high temperature gas refrigerant in G15, G1, GE3, the internal height of gas-liquid separator C Compressed series and parallel pipelines produce a change in the refrigerant gas liquid state in the chamber, which accelerates the separation of the gas liquid refrigerant and the pollution source recovered by the refrigeration and air conditioning system Z. As described in the first item of the scope of patent application, the invention A can be applied to the refrigeration and air-conditioning system Z high and low pressure components pipeline gas liquid refrigerant and separate pollution source cycle cleaning operations, the metering unit QA58 can accurately quantify the refrigeration and air conditioning system Z high and low pressure components Fill refrigerant and recover refrigerant, vacuum unit US38 vacuums high and low pressure parts of refrigeration and air-conditioning system Z, detects the deterioration state of pollutants discharged and its waste oil capacity and fills with new refrigerating oil, and the function of high and low pressure meter to observe refrigeration and air-conditioning system Z . For example, the gas-liquid separator C described in the first item of the scope of patent application, there are several series and parallel high and low pressure pipelines connected in the upper and lower chambers, which can gas and liquefy the refrigerant and accelerate the separation of pollution sources. The number of pipelines or pipes can be increased or decreased as needed. The size of the diameter. For example, the gas-liquid separator C described in the first item of the patent application has a U-shaped pipe W17 with several pipe vaporization holes in the upper chamber, which can accelerate the vaporization of the refrigerant and prevent the compressor from being hit by liquid. The number of pores and the size of the pores can be increased or decreased as needed. For example, the gas-liquid separator C mentioned in the first item of the patent application has several high and low pressure series and parallel pipelines and pipeline gasification holes W1, W2, W3, W4, W5 in the lower chamber, which can accelerate the gasification and separation of refrigerant Pollution source, and liquefy high and low pressure series and parallel pipelines high pressure and high temperature gaseous refrigerant, the pipeline gasification holes can increase or decrease the number of holes and the size of the diameter according to the needs. For example, the gas-liquid separator C described in the first item of the scope of patent application, the inside of the cavity is divided into upper and lower chambers by the oil-water filter W16, which can make the purification and regeneration effect of the refrigerant better. Its shell has multiple maintenance ports S1. S2 and S3 can be connected to the A pipeline of the present invention or the detection can be increased or decreased as required.

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