KR20100079028A - A leakage sensor and a leakage sensing system of air-conditioner gas - Google Patents

A leakage sensor and a leakage sensing system of air-conditioner gas Download PDF

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Publication number
KR20100079028A
KR20100079028A KR1020080137431A KR20080137431A KR20100079028A KR 20100079028 A KR20100079028 A KR 20100079028A KR 1020080137431 A KR1020080137431 A KR 1020080137431A KR 20080137431 A KR20080137431 A KR 20080137431A KR 20100079028 A KR20100079028 A KR 20100079028A
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KR
South Korea
Prior art keywords
compressor
leakage
pipe
leak detector
leak
Prior art date
Application number
KR1020080137431A
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Korean (ko)
Inventor
김석민
Original Assignee
김석민
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Application filed by 김석민 filed Critical 김석민
Priority to KR1020080137431A priority Critical patent/KR20100079028A/en
Publication of KR20100079028A publication Critical patent/KR20100079028A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

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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)
  • Combustion & Propulsion (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: A leakage sensor and a gas leakage sensing system for an air conditioner are provided to easily recognize gas leakage without dismantling the whole air conditioner. CONSTITUTION: A leakage sensor comprises a pneumatic motor, multiple intake pipes(121), and a discharge pipe. The intake pipes and the discharge pipe are connected to the pneumatic motor. A pressure guage is installed at the pipe to which the pneumatic motor is connected. Each of the multiple intake pipes comprises the pressure guage. A nozzle tip(210) is connected to the end part of the intake pipe. A guide block is connected to the nozzle tip and is located at a compressor(310). An auxiliary intake pipe(125) with a diameter different from that of the intake pipe is connected to the intake pipe. Air flow to the intake pipe from the discharge pipe is formed by the pressure generated when the pneumatic motor drives, and thus the compressor connected to the nozzle tip maintains a negative vacuum state.

Description

Leakage detection and air leakage gas detection system using the same {a leakage sensor and a leakage sensing system of air-conditioner gas}

The present invention is a leak detection device including a pneumatic motor and a plurality of suction pipes and discharge pipes connected thereto, and a leak detector and an air conditioner gas using the same, which makes it easy to grasp a gas leak of a compressor, a condenser, an evaporator, and an expansion valve forming a closed circuit. A leak detection system.

In general, automotive air conditioners are largely composed of a compressor for compressing air conditioner refrigerant, a condenser for liquefying a high-pressure refrigerant, an evaporator for vaporizing the liquefied refrigerant, and a blower for blowing cooled air into the room and connected to the connection pipe.

Therefore, the air conditioner of the car is filled with refrigerant gas inside the parts, and after running for a certain period of time, the parts themselves are old and the refrigerant gas filled inside leaks, so that the cold wind does not occur properly. Find a car repair shop.

At this time, the auto repair shop first collects the refrigerant gas remaining in the inside of the car's piping in order to leak the air conditioner, compresses it in a vacuum state, checks the value by gauge gauge, and applies soapy water to the pipe connection part. Look for soap bubbles and check for leaks.

However, the above-described method is a primary initial method, and if it leaks minutely, it cannot be easily found, so each component of the air conditioner is disassembled and inspected in the vehicle body.

The disassembled parts are compressed by the compressor connecting air to the connector formed on both sides so that the air compressed by the refrigerant can be circulated by the blower, and checks the scale of the gauge and checks the abnormality.

However, the air conditioner as the air conditioner is formed with a connector to circulate the air cooled in the compressor, condenser, evaporator, and blower. Since the diameter size of the connector is different from each other, each nozzle packing according to the size of the component is checked. Has the trouble of having to have a problem that reduces the work efficiency.

In order to improve such a problem, the registered utility model No. 354305 discloses a nozzle packing for air conditioner gas leak inspection, the configuration of which is connected to the nozzle packing 1 connected to the compressor (7) diameter as shown in Figure 1a, b It consists of a nozzle jaw (2), a packing (5), a spiral tube (3), a fitting tube (4) so as to fit regardless.

At this time, the nozzle jaw (2) is a cylindrical shape spiral tube (3) and the fitting tube (4) is integrally through so that the inside tapered toward the smaller fitting tube (4) to maximize the suction and discharge pressure It is installed, the fitting pipe 4 is made of a configuration that fits the tapered packing 5 in a conical shape on the outer peripheral surface.

The nozzle packing as described above, the nozzle packing (1) connecting the connection hose for generating a vacuum to the connecting portion (7) formed in the radiator (6) of each of the parts of the air conditioner, respectively disassembled each part Insert both ends of the connection portion 7 and operate the vacuum compressor to keep the nozzle packing 1 under the vacuum pressure generated by maintaining the inside of the component in a vacuum state to check whether or not the vacuum.

However, in the method of confirming the vacuum using the nozzle packing as described above, after disassembling in the vehicle body of each component constituting the air conditioner, the operation is cumbersome and the operation is cumbersome, and the vacuum of each component is confirmed. It should be increased the working time, there is an inconvenience that there must be a separate operator to close the nozzle packing (1) to the parts.

An object of the present invention for improving the conventional problems as described above, it is possible to easily grasp the leaking portion of the gas without disassembling the entire air conditioning system, and to easily identify the leaking portion of each unit component, Leak detector to prevent the increase of work load due to disassembly and coupling of the system, and when a negative pressure occurs, a plurality of nozzle tips are in close contact with each component to enable the detection of a gas leak by a single worker and using the same To provide air conditioning gas leak detection system.

The present invention provides a leak detector comprising a pneumatic motor and a plurality of suction pipes and discharge pipes connected thereto, and the pressure gauge is provided on the pipe passage to which the pneumatic motor is connected.

In addition, the suction pipe of the present invention is connected to the exhaust line is connected to the pressure gauge and the pneumatic motor, the suction pipe provides a leak detector consisting of a configuration that is installed to have a diameter difference.

In addition, the suction pipe of the present invention, the nozzle tip is further connected, the nozzle tip has a tapered surface and the nozzle tip is formed in the thread and the guide block which is positioned in the compressor while the nozzle tip is supported in the vertical direction to support the vertical direction To provide a leak detector.

On the other hand, the present invention, when the compressor, the condenser, the evaporator, and the expansion valve constituting the automotive air conditioner are connected to the connecting pipe to form a closed circuit, respectively, three-way valves are respectively installed at the front and rear ends of the compressor, the condenser, the evaporator, and the expansion valve. An air conditioner using a leak detector composed of a compressor, a condenser, an evaporator, and an expansion valve connected to a suction pipe of a leak detection device, respectively, to detect a gas leak by generating negative air pressure. Provide a gas leak detection system.

In addition, the closed circuit of the present invention, the air conditioner using the leak detector made of a configuration to detect the leakage of the closed circuit when generating the negative air pressure as a leak detector by opening only two three-way valve selected from the plurality of three-way valve. Provide a gas leak detection system.

As described above, according to the present invention, it is possible to easily grasp the leaked part of the gas without disassembling the entire air conditioner system, and to easily identify the leaked part of each unit part, and to increase the workload due to the disassembly and coupling of the whole system. When the negative pressure is generated, a plurality of nozzle tips are in close contact with each component, so that one person can detect a gas leak.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing a leak detection system according to the present invention, Figure 3 is a block diagram showing a leak pressure gauge according to the present invention, Figure 4 is a pressure sensing state of the compressor using the pressure gauge according to the present invention Is a perspective view.

The leak detector 100 of the present invention includes a pneumatic motor 150 and a plurality of suction pipes 121 and discharge pipes 127 connected to the body 120, and on the pipe path to which the pneumatic motor 150 is connected. The pressure gauge 110 is provided.

In addition, the suction pipe 121 is made of a configuration that the secondary suction pipe 125 is further connected to have a diameter difference.

In addition, the suction pipes 121 and 125 are further connected to the nozzle tip 210.

Subsequently, the nozzle tip 210 has a configuration in which the guide block 250 positioned in the compressor 310 is further connected while supporting the nozzle tip 210 in the vertical direction.

At this time, the nozzle tip 210 which is in close contact with the pipe such as the three-way valve 385 or the compressor 310 of the connecting pipe 380 having a through-hole facing toward the outside guide the nozzle tip 210 in the vertical direction It is supported by the block 250 and is in close contact with the compressor or the three-way valve in the formation of the negative pressure.

The leak detector as described above forms a flow of air from the suction pipe 121 to the discharge pipe 127 by the pressure generated when the pneumatic motor 150 is driven, thereby negatively affecting the compressor 310 or the like to which the nozzle tip 210 is connected. Maintain a vacuum.

At this time, the present invention, the leak detector 100, is provided with one or more suction pipes 210 to enable the rapid operation by generating a vacuum pressure at the same time.

In addition, the leak detector 100, a separate pressure gauge 110 may be attached to each of the suction pipe 210, so that when a different pressure acts on both suction pipes so that the pressure gauge in the vicinity of the leaked portion is differentially shown Therefore, the leak location of the gas can be identified more quickly.

On the other hand, the present invention is connected to the connection pipe 380, respectively, so that the compressor 310, the condenser 330, the evaporator 370, the expansion valve 360 constituting the automobile air conditioner to form a closed circuit.

In this case, three-way valves 385 are respectively provided at front and rear ends of the compressor 310, the condenser 330, the evaporator 370, and the expansion valve 380, and moisture and foreign substances in the air conditioner gas are provided at one side of the condenser. The receiver dryer 350 for filtering the filter is further installed.

In addition, the three-way valve 385 installed at the front and rear ends of the compressor 310, the condenser 330, the evaporator 370, and the expansion valve 380 has a leak detector while a passage through which the connection pipe 380 is formed. The suction pipe 121 and the auxiliary suction pipe 125 of 100 can be connected to each.

That is, in order to detect the gas leak of the compressor 310, after opening the three-way valve (385) installed in the front and rear of the compressor 310, respectively, the suction pipe and the auxiliary suction pipe is connected to the leak detector (100) When the suction pipe 121 and the auxiliary suction pipe 125 are respectively connected and operated, negative air pressure is generated in the compressor 310.

At this time, the three-way valve (385) located at the front, rear of the compressor 310 is connected to the suction pipe 121 and the auxiliary suction pipe 125, respectively, to supply a negative pressure to check whether the gas leak in the compressor.

In addition, the present invention is to form a closed circuit when the compressor 310, the condenser 330, the evaporator 370, the expansion valve 380 is connected to the connection pipe 380, the three-way valve (385) when opening In order to form a flow toward the air, that is, a flow toward the suction pipe 121 and the auxiliary suction pipe 125 of the leak detector 100 to close the leak detector 100 to generate a negative air pressure after the closed circuit of the closed circuit Allow gas detection.

At this time, the air conditioner compresses the air conditioner gas into a state of high temperature and high pressure as the compressor 310, and condenses the gas of high temperature and high pressure output from the compressor as the condenser 330 to change into a high pressure liquid and / or gas. Reducing the refrigerant output from the condenser to a low pressure in a state where it is easy to evaporate as the expansion valve 360, and stores the refrigerant supplied through the expansion valve 360 to absorb external heat through the evaporator 370 In this way, the gas is converted into a low pressure steam to be sent to the compressor.

1A and 1B are perspective views each showing a nozzle for inspecting an air conditioner gas leak inspection system.

2 is a block diagram showing a leak detection system according to the present invention.

Figure 3 is a block diagram showing a leak detection pressure gauge according to the present invention.

Figure 4 is a perspective view showing a pressure detection state of the compressor using a pressure gauge according to the present invention.

* Description of the symbols for the main parts of the drawings *

100. Leakage detector 110 ... Pressure gauge

150 pneumatic motor 250 guide block

310.Compressor 330.Capacitor

380 ... Connection piping

Claims (5)

Leakage detector comprising a pneumatic motor and a plurality of suction pipes and discharge pipes connected thereto, and the pressure gauge is provided on the pipeline to which the pneumatic motor is connected The leak detector according to claim 1, wherein the leak detector is configured such that pressure gauges are provided in a plurality of suction pipes, respectively. The leak detector of claim 1, wherein the suction pipe has a nozzle tip interposed with a guide block at an end thereof. When the compressor, the condenser, the evaporator and the expansion valve constituting the automotive air conditioner are connected to the connecting pipes to form a closed circuit, respectively, three-way valves are installed at the front and rear of any one selected from the compressor, the condenser, the evaporator, and the expansion valve. After connecting the suction pipe of the leak detector of any one of claims 1 to 3 to the three-way valve located at the front and rear of the compressor, the condenser, the evaporator, the expansion valve, the negative air pressure is generated to generate a gas leak. Air conditioner gas leak detection system using leak detector to detect The method of claim 1, wherein the closed circuit is a leak detector connected to the two three-way valve selected from the plurality of three-way valve and connected to the leak detector for detecting the leakage of the closed circuit when the negative air pressure is generated. Air Conditioning Gas Leak Detection System
KR1020080137431A 2008-12-30 2008-12-30 A leakage sensor and a leakage sensing system of air-conditioner gas KR20100079028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080137431A KR20100079028A (en) 2008-12-30 2008-12-30 A leakage sensor and a leakage sensing system of air-conditioner gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080137431A KR20100079028A (en) 2008-12-30 2008-12-30 A leakage sensor and a leakage sensing system of air-conditioner gas

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KR20100079028A true KR20100079028A (en) 2010-07-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101489534B1 (en) * 2010-12-17 2015-02-03 현대중공업 주식회사 Co2 pipe line pretest in a t-block assembling process of ship
CN108454351A (en) * 2018-04-11 2018-08-28 博耐尔汽车电气系统有限公司 Automobile postposition air conditioner mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101489534B1 (en) * 2010-12-17 2015-02-03 현대중공업 주식회사 Co2 pipe line pretest in a t-block assembling process of ship
CN108454351A (en) * 2018-04-11 2018-08-28 博耐尔汽车电气系统有限公司 Automobile postposition air conditioner mechanism

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