KR100203593B1 - The refrigerant charging method of an airconditioner - Google Patents

The refrigerant charging method of an airconditioner Download PDF

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KR100203593B1
KR100203593B1 KR1019950065975A KR19950065975A KR100203593B1 KR 100203593 B1 KR100203593 B1 KR 100203593B1 KR 1019950065975 A KR1019950065975 A KR 1019950065975A KR 19950065975 A KR19950065975 A KR 19950065975A KR 100203593 B1 KR100203593 B1 KR 100203593B1
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South Korea
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vacuum
refrigerant
filling
performance
air conditioner
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KR1019950065975A
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Korean (ko)
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KR970047500A (en
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이인광
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정몽규
현대자동차주식회사
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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
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/001—Charging refrigerant to a cycle
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

본 발명은 에어콘의 냉매 충진방법에 관한 것으로, 시스템내부를 10[mmHg]의 진공도로 진공하는 제1 진공단계와, 진공정지후 진공도의 변화에 기초하여 기밀을 체크하는 기밀체크단계, 상기 기밀체크단계에서 진공도의 변화가 없을 때 시스템내부에 가스(Gas)상 냉매를 충진하는 제1 냉매 충진단계, 냉매회로의 가스누출을 체크하는 가스누출 체크단계, 상기 시스템내부를 10[mmHg]의 진공도로 재차 진공하는 제2 진공단계, 상기 시스템내부에 가스상 냉매를 충진하는 제2 냉매충진단계 및, 상기 시스템의 성능을 확인하는 성능확인단계로 구성되어 에어콘의 냉매충진시 압축기의 고착 및 성능저하를 방지할 수 있음과 더불어 정상주행시 에어콘의 성능을 향상시킨다.The present invention relates to a refrigerant filling method of an air conditioner, comprising: a first vacuum step of vacuuming a system inside a vacuum degree of 10 [mmHg], an airtight check step of checking airtightness based on a change in vacuum degree after vacuum stop, and the airtight check A first refrigerant filling step of filling a gas phase refrigerant into the system when there is no change in the degree of vacuum in the step, a gas leakage checking step of checking for gas leakage of the refrigerant circuit, and a vacuum road of 10 [mmHg] inside the system. The second vacuum step of vacuum again, the second refrigerant filling step of filling the gaseous refrigerant in the system, and the performance check step to check the performance of the system to prevent the fixing of the compressor and deterioration of performance when the refrigerant charge of the air conditioner In addition to improving the performance of the air conditioner in normal driving.

Description

에어콘의 냉매 충진방법Refrigerant filling method of air conditioner

제1도는 본 발명의 일실시예에 따른 에어콘의 냉매 충진방법을 설명하기 위한 플로우차트이다.1 is a flowchart illustrating a refrigerant charging method of an air conditioner according to an embodiment of the present invention.

본 발명은 에어콘의 냉매 충진방법에 관한 것으로, 보다 상세하게는 에어콘 냉매 충진시 시스템 내부를 진공시킴과 더불어 가스(Gas)상태로 냉매를 충진시킬 수 있도록 된 에어콘의 냉매 충진방법에 관한 것이다.The present invention relates to a method for filling an air conditioner, and more particularly, to a method for filling an air conditioner, which enables the inside of a system to be vacuumed and to charge a refrigerant in a gas (Gas) state.

종래 에어콘의 냉매 충진방법은 해당 에어콘에 냉매를 사람이 주입시켰기 때문에 사람에 따라 다소 상이하게 수행되어 압축기의 고착 및 성능저하 등의 문제점이 있었다.In the conventional method for filling a refrigerant in an air conditioner, since a person injects a refrigerant into the air conditioner, the refrigerant is performed differently according to a person, thereby causing problems such as fixing of the compressor and deterioration of performance.

또한, 에어콘의 냉매 충진시 그 시스템(System)의 내부의 공기가 잔존한 상태에서 해당 시스템의 내부를 진공시키지 않음으로 인하여 냉매가 충분히 충진되지 않아서 온/오프(ON/OFF)의 반복이 빈번하게 수행되어 성능저하 및 냉매온도 상승으로 압축기의 고착원인이 된다.In addition, when the refrigerant in the air conditioner is filled with air inside the system, the inside of the system is not vacuumed, and the refrigerant is not sufficiently charged, so the repetition of ON / OFF is frequently performed. This can cause performance degradation and refrigerant temperature rise, causing the compressor to stick.

그리고, 상기 에어콘의 냉매를 가스(Gas) 상으로 충진하지 않고 액냉매상태로 충진시키면 압축기 파손 및 슈퍼 히트(Super Heat)가 생기지 않아 시스템의 불균형으로 정상주행시 에어콘 성능이 떨어지는 문제점이 있었다.In addition, if the refrigerant of the air conditioner is filled in the liquid refrigerant state without filling the gas (Gas) phase, there is a problem in that the air conditioner performance is degraded during normal driving due to unbalance of the system due to compressor damage and super heat.

이에, 본 발명은 상기한 사정을 감안하여 창출되어진 것으로서, 에어콘의 냉매 충진시 시스템의 내부를 진공시킴과 더불어 가스상태로 냉매를 충진시킬 수 있도록 된 에어콘의 냉매 충진방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a refrigerant charging method of an air conditioner, which allows the inside of the system to be filled with a vacuum and to charge the refrigerant in a gas state. .

상기한 목적을 실현하기 위한 본 발명의 일실시예에 따르면, 시스템 내부를 10[mmHg]의 진공도로 진공하는 제1 진공단계와, 진공정지후 진공도의 변화에 기초하여 기밀을 체크하는 기밀체크단계, 상기 기밀체크단계에서 진공도의 변화가 없을 때 시스템 내부에 가스(Gas)상 냉매를 충진하는 제1 냉매충진단계, 냉매회로의 가스누출을 체크하는 가스 누출체크단계, 상기 시스템내부를 10[mmHg]의 진공도로 재차 진공하는 제2 진공단계, 상기 시스템 내부에 가스상 냉매를 충진하는 제2 냉매충진단계 및, 상기 시스템의 성능을 확인하는 성능확인단계로 구성된 에어콘의 냉매 충진방법이 제공되어진다.According to one embodiment of the present invention for realizing the above object, the first vacuum step of vacuuming the inside of the system to a vacuum degree of 10 [mmHg], and the airtight check step of checking the airtight based on the change of the vacuum degree after vacuum stop A first refrigerant filling step of filling a gas phase refrigerant into the system when there is no change in the degree of vacuum in the hermetic checking step, a gas leak checking step of checking for a gas leak in the refrigerant circuit, and an internal pressure of 10 [mmHg]. ] A second vacuum step of vacuum again to a vacuum degree, a second refrigerant filling step of filling a gaseous refrigerant in the system, and a performance checking step of confirming the performance of the system is provided a refrigerant charging method of the air conditioner.

이하, 첨부되어진 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명의 일실시예에 따른 에어콘의 냉매 충진방법을 설명하기 위한 플로우차트이다.1 is a flowchart illustrating a refrigerant charging method of an air conditioner according to an embodiment of the present invention.

우선, 고·저압밸브의 양측으로부터 진공을 개시하여 (단계 10) 약 15분 동안 시스템내부를 진공하는데 이때 진공계의 진공도가 10[mmHg]에 도달할 때 까지 진공하며 고·저압계의 부압눈금으로는 750[mmHg]에 도달할 때 까지 진공한다.(단계 12)First, start the vacuum from both sides of the high and low pressure valve (step 10) and vacuum the inside of the system for about 15 minutes. At this time, vacuum is performed until the vacuum degree of the vacuum gauge reaches 10 [mmHg]. Vacuum until 750 [mmHg] is reached (step 12).

상기 진공계의 진공도가 10[mmHg]에 도달하거나 상기 고·저압계의 부압눈금이 750[mmHg]에 도달되면 진공을 정지한 다음(단계 14) 상기 고·저압 밸브를 닫고 5분이상을 방치한다.When the vacuum degree of the vacuum gauge reaches 10 [mmHg] or the negative pressure scale of the high and low pressure gauge reaches 750 [mmHg], the vacuum is stopped (step 14), and the high and low pressure valve is closed and left for at least 5 minutes.

그런 다음, 기밀을 체크(Check)하여 상기 진공계에서 측정된 해당 진공도가 변화가 없는지를 판단하는데(단계 16), 이때 상기 진공계에서 측정된 해당 진공도가 변화하면 상기 단계 16에서의 판단결과(NO)에 따라 배관접속부를 재점검하여 상기 배관접속부를 더욱 조인 후(단계 18)에 단계 10으로 진행하여 다시 고·저압밸브의 양측으로부터 진공을 다시 개시한다.Then, the airtightness is checked to determine whether there is no change in the corresponding vacuum degree measured in the vacuum gauge (step 16), and if the corresponding vacuum degree measured in the vacuum gauge changes, the determination result (NO) in step 16 In accordance with this, the pipe connection part is re-checked, and the pipe connection part is further tightened (step 18), and the flow proceeds to step 10 to resume the vacuum from both sides of the high and low pressure valve.

이에 반하여, 상기 단계16에서 상기 진공계에서 측정된 해당 진공도가 변화가 없으면, 상기 단계 16에서의 판단결과(YES)에 따라 고·저압밸브의 양측으로부터 가스(Gas) 상태의 냉매를 1[Kg/Cm2·G]를 충진한다(단계 20).On the contrary, if the corresponding vacuum degree measured by the vacuum gauge in step 16 does not change, the refrigerant in the gas state is 1 [Kg / from both sides of the high and low pressure valve according to the determination result (YES) in step 16. Cm 2 · G] is charged (step 20).

이어, 가스누출검출기로 냉매회로를 체크(Check)하는데(단계 22), 이때 상기 가스누출검출기를 통해 검출된 가스상 냉매의 누출량이 기설정치 이상이면 상기 단계 22에서의 판단결과(NO)에 따라 배관접속부를 재점검하여 상기 배관접속부를 더욱 조인 수(단계 24), 2차 진공을 개시한다(단계 26).Next, the refrigerant circuit is checked with a gas leak detector (step 22). At this time, if the leakage amount of the gaseous refrigerant detected through the gas leak detector is equal to or larger than a preset value, the pipe according to the determination result NO in the step 22 is performed. The connection is re-checked to further tighten the pipe connection (step 24) and to start the secondary vacuum (step 26).

이에 반하여 상기 단계 22에서 상기 가스누출검출기를 통해 검출된 가스상 냉매의 누출량이 기설정치 이하이면, 상기 단계 22에서의 판단결과(YES)에 따라 2차 진공을 개시한 다음(단계 26) 약 15분 동안 시스템내부를 진공하는데, 이때 상기 진공계의 진공도가 10[mmHg]에 도달할 때까지 진공하며 상기 고·저압계의 부압눈금으로는 750[mmHg]에 도달할 때 까지 진공한다(단계 28).On the contrary, if the leakage amount of the gaseous refrigerant detected by the gas leak detector in the step 22 is less than or equal to a preset value, the secondary vacuum is started according to the determination result (YES) in the step 22 (step 26) for about 15 minutes. Vacuum the system until it reaches 10 [mmHg] and with a negative pressure scale of the high and low pressure gauges until it reaches 750 [mmHg] (step 28).

상기 진공계의 진공도가 10[mmHg]에 도달하거나 상기 고·저압계의 부압눈금이 750[mmHg]에 도달되면 진공을 정지한 다음(단계 30) 시스템내부에 가스상 냉매를 충진하는데(단계 32), 이때 고·저압밸브의 양측 또는 어느 한 곳으로 가스상 냉매를 충진하며 충진시에는 압축기를 운전하지 않는다.When the vacuum degree of the vacuum gauge reaches 10 [mmHg] or the negative pressure scale of the high and low pressure gauge reaches 750 [mmHg], the vacuum is stopped (step 30) and the gaseous refrigerant is charged into the system (step 32). Fill the gaseous refrigerant to either or both of the high and low pressure valves and do not operate the compressor when filling.

또한, 상기 고·저압밸브에 충진되어지는 가스상 냉매의 충진량은 기설정되어진 기준량에 따르며, 상기 고·저압밸브에 가스상 냉매를 보충진하는 주기는 기설정된 일정 주기에 따른다. 상기 단계 32에서 상기 고·저압밸브를 통해 시스템에 기준 충진량만큼 냉매가 충진되면 압축기를 가동시켜 성능을 확인한다(단계 34).In addition, the filling amount of the gaseous refrigerant to be filled in the high-low pressure valve is in accordance with a predetermined reference amount, the cycle of replenishing the gaseous refrigerant to the high-low pressure valve is in accordance with a predetermined predetermined period. When the refrigerant is filled in the system by the standard filling amount through the high and low pressure valve in step 32, the compressor is operated to check the performance (step 34).

상기한 구성으로 된 본 발명의 일실시예에 따른 에어콘의 냉매 충진방법에 의하면, 에어콘의 냉매 충진시 시스템의 내부를 진공시킨 상태에서 가스상 냉매를 상기 시스템에 충진함으로써 압축기의 고착 및 성능저하를 방지할 수 있을 뿐 아니라 정상주행시 에어콘의 성능을 향상시킬 수 있게 된다.According to the refrigerant charging method of the air conditioner according to an embodiment of the present invention having the above configuration, by filling the gaseous refrigerant in the system in a state in which the inside of the system when the refrigerant is filled in the air conditioner to prevent the compressor sticking and deterioration of performance In addition to improving the performance of the air conditioner in normal driving.

Claims (1)

시스템내부를 10[mmHg]의 진공도로 진공하는 제1 진공단계와, 진공정지후 진공도의 변화에 기초하여 기밀을 체크하는 기밀체크단계, 상기 기밀 체크단계에서 진공도의 변화가 없을 때 시스템 내부에 가스(Gas) 상 냉매를 충진하는 제1 냉매충진단계, 냉매회로의 가스누출을 체크하는 가스누출체크단계, 상기 시스템내부를 10[mmHg]의 진공도로 재차 진공하는 제2 진공단계, 상기 시스템내부에 가스상 냉매를 충진하는 제2 냉매충진단계 및, 상기 시스템의 성능을 확인하는 성능확인단계로 구성된 것을 특징으로 하는 에어콘의 냉매 충진방법.A first vacuum step of vacuuming the system to a vacuum of 10 [mmHg], an airtight check step of checking airtightness based on a change in vacuum degree after vacuum stop, and a gas inside the system when there is no change in vacuum degree in the airtight check step (Gas) a first refrigerant filling step of filling a refrigerant, a gas leakage check step of checking for gas leakage of the refrigerant circuit, a second vacuum step of vacuuming the inside of the system again with a vacuum of 10 [mmHg], into the system And a second refrigerant filling step of filling a gaseous refrigerant, and a performance checking step of checking the performance of the system.
KR1019950065975A 1995-12-29 1995-12-29 The refrigerant charging method of an airconditioner KR100203593B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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KR101826955B1 (en) * 2017-03-02 2018-02-07 인티제닉 주식회사 Refrigerant charging device with leak diagnostic function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100677263B1 (en) * 2005-02-04 2007-02-02 엘지전자 주식회사 Detecting method for poor vacuum of multi air-conditioner and detecting apparatus thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101826955B1 (en) * 2017-03-02 2018-02-07 인티제닉 주식회사 Refrigerant charging device with leak diagnostic function

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