KR20120001861A - Refrigerant leak detection method - Google Patents

Refrigerant leak detection method Download PDF

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Publication number
KR20120001861A
KR20120001861A KR1020100062462A KR20100062462A KR20120001861A KR 20120001861 A KR20120001861 A KR 20120001861A KR 1020100062462 A KR1020100062462 A KR 1020100062462A KR 20100062462 A KR20100062462 A KR 20100062462A KR 20120001861 A KR20120001861 A KR 20120001861A
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South Korea
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temperature
leak
refrigerant leak
refrigerant
detection method
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KR1020100062462A
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Korean (ko)
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김해성
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위니아만도 주식회사
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Publication of KR20120001861A publication Critical patent/KR20120001861A/en

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/04—Calculation of parameters
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: A method to detect a refrigerant leak is provided to rapidly measure temperature changes inside an indirect cooling refrigerator and reduce decision errors about the refrigerant leak. CONSTITUTION: A method to detect a refrigerant leak is as follows. The refrigerant leak is sensed by measuring a temperature inside an indirect cooling refrigerator when a defrosting is completed after power on. The refrigerant leak is found by temperature changes inside an indirect cooling refrigerator. The first temperature, a temperature inside an indirect cooling refrigerator, is measured after the defrosting(S1). The second temperature, a temperature inside an indirect cooling refrigerator, is measured few time later(S3). A leak is determined when a case that the second temperature subtracted from the first temperature is a specific value or less repeats N times(S5).

Description

냉매 리크 검지 방법 {How to detecting refrigerant leaks}How to detect refrigerant leaks

본 발명은 간냉식 룸의 고내온도센서에 의해 냉매 리크(leak)를 검지하는 방법에 관한 것이다.The present invention relates to a method for detecting a refrigerant leak by a high temperature sensor in an intercooled room.

종래의 냉매 리크(leak) 검지 방법은, 2개의 룸 이상의 직간냉 혼합 냉장고에서 사용되는 냉매 리크 검지 방법으로써, 직냉식 룸의 고내온도센서를 이용하여 냉매 리크(leak)를 검지한다.The conventional refrigerant leak detection method is a refrigerant leak detection method used in a direct-to-cold mixed refrigerator of two rooms or more, and detects a refrigerant leak using a high temperature sensor in the direct-cooling room.

도 1에 도시된 바와 같이, 제품 전원이 ON 시, 직냉식 룸의 고내온도인 제1온도(T1')를 측정한다.(S10)As illustrated in FIG. 1, when the product power is turned on, the first temperature T 1 ′, which is a high internal temperature of the direct cooling room, is measured.

압축기가 작동한 후 특정시간이 경과한 후의 직냉식 룸의 고내온도인 제2온도(T2')를 측정한다.(S30)After the operation of the compressor, a second temperature T 2 ′, which is the internal temperature of the direct cooling room after a specific time has elapsed, is measured.

상기 제1온도(T1')에서 상기 제2온도(T2')를 뺀 값이 일정값(A) 이하일 경우(S50), 냉매 리크(leak)로 판단한다.(S70)When the value obtained by subtracting the second temperature T 2 ′ from the first temperature T 1 ′ is less than or equal to a predetermined value A (S50), it is determined that the refrigerant leaks (S70).

디스플레이에 냉매 리크(leak) 에러 코드를 표시한다.The display shows the refrigerant leak error code.

이러한 종래의 냉매 리크(leak) 검지 방법은, 초기 1회만 검지하여 사용 중에 발생하는 리크(leak)는 음식물 손상 후에 발견하게 되어 소비자의 불편을 발생시킨다는 문제점이 발생한다.In the conventional refrigerant leak detection method, a leak occurring during use by detecting only once at an initial time is found after food damage, causing a problem of inconvenience to consumers.

또한, 냉매 리크(leak)가 미세한 경우, 소비자가 사용한 후 며칠 또는 몇 개월이 지난 후 고내온도가 떨어지지 않게 되어 식품이 변질 된 후 발견하게 되는 문제점이 발생한다.In addition, if the refrigerant leak (leak) is fine, after a few days or months after use by the consumer does not fall in the high temperature occurs a problem that is found after the food is deteriorated.

제품 전원 ON 이후, 고내온도 보다 높은 온도의 식품을 고내에 대량 투입 시, 제품의 냉동능력에 한계가 있어 고내온도는 일정시간 경과 후에도 온도차가 일정값(A) 이하인 경우가 발생하여, 냉매 리크(leak)가 아닌 경우에도 냉매 리크(leak)로 판단할 수 있다는 문제점이 발생한다.After the product is turned on, when foods with a temperature higher than the high temperature are put into the refrigerator, there is a limit in the freezing capacity of the product. Even if it is not a leak occurs a problem that can be determined as a refrigerant leak (leak).

또한, 직냉식 룸의 고내 온도 센서는 제품동작에 따라 반응이 느리기 때문에, 냉매 리크(leak) 판단 오류를 발생시킨다는 문제점이 발생한다.In addition, since the internal temperature sensor of the direct cooling room is slow in response to product operation, a problem arises in that a refrigerant leak determination error is generated.

본 발명은 전술한 문제를 해결하기 위하여 안출된 것으로, 냉매 리크(leak)가 미세한 경우에도 현상을 빠르게 발견한다.The present invention has been made to solve the above-mentioned problem, and finds a phenomenon quickly even when the refrigerant leak is minute.

전술한 목적을 달성하기 위한 본 발명의 냉매 리크 검지 방법은, 전원이 ON이 되고 제상 완료 시점에 고내 온도를 측정하여 냉매 리크(leak)를 감지하되, 직냉식 룸의 온도차가 아닌 간냉식 룸의 온도차에 의해 냉매 리크(leak)를 결정하는 것을 특징으로 하는 냉매 리크(leak) 검지 방법을 포함한다.Refrigerant leak detection method of the present invention for achieving the above object, the power is turned on and when the defrost is completed, by measuring the temperature in the high temperature to detect the refrigerant (leak), the temperature difference in the intercooled room, not the temperature difference of the direct cooling room A refrigerant leak detection method is characterized by determining a refrigerant leak.

본 발명의 냉매 리크 검지 방법은, 제상완료 후 간냉식 룸의 고내온도인 제1온도를 측정하는 단계와, 일정 시간 경과 후 간냉식 룸의 고내온도인 제2온도를 측정하는 단계와, 상기 제1온도와 상기 제2온도에 의해 리크(leak) 여부를 판단하는 단계를 포함한다.Refrigerant leak detection method of the present invention, after the completion of the defrosting step of measuring the first temperature which is the internal temperature of the intercooled room, measuring a second temperature of the internal temperature of the intercooled room after a predetermined time, and the first temperature And determining whether to leak based on the second temperature.

상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우 리크(leak)로 판단하는 단계를 포함한다.And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A.

상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우가 N회 반복하는 경우 리크(leak)로 판단하는 단계를 더 포함한다.The method may further include determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A is repeated N times.

제품 전원이 ON 시, 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우가 N회 반복하는 경우 리크(leak)로 판단하는 단계를 포함한다.And when the product power is turned on, if the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value (A) is repeated N times, the method includes determining a leak.

이상에서 설명한 바와 같은 본 발명의 냉매 리크 검지 방법에 따르면, 다음과 같은 효과가 있다.According to the refrigerant leak detection method of the present invention as described above, there are the following effects.

간냉식 룸의 고내온도센서로 냉매 리크(leak)를 판단하여, 간냉식 룸의 고내온도변화를 빠르게 측정할 수 있다.By determining the refrigerant leak with the high temperature sensor of the intercooled room, it is possible to quickly measure the change in the high temperature of the intercooled room.

간냉식 룸의 제1온도에서 제2온도를 뺀 값이 일정값(A)보다 작은 경우를 N회 반복 시 냉매 리크(leak)로 판단하여, 냉매 리크(leak) 판단 오류를 줄일 수 있다.When the value obtained by subtracting the second temperature from the first temperature of the intercooled room is smaller than the predetermined value A, it is determined that the refrigerant leaks after N repetitions, thereby reducing the refrigerant leak determination error.

또한, 냉매 리크(leak)를 수시로 판단하여, 사용 중에도 냉매 리크(leak)를 판단하여 음식물 손상에 따른 소비자의 불편을 줄일 수 있다.In addition, the refrigerant leak (leak) is often determined, the refrigerant leak (leak) can be determined even during use to reduce the inconvenience of consumers due to food damage.

도 1은 종래의 냉매 리크(leak) 검지 방법에 따른 순서도.
도 2는 본 발명의 바람직한 실시예에 따른 냉매 리크(leak) 검지 방법에 따른 순서도.1 is a flow chart according to a conventional refrigerant leak detection method.
2 is a flow chart according to a refrigerant leak detection method according to a preferred embodiment of the present invention.

이하, 본 발명의 바람직한 일실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

참고적으로, 이하에서 설명될 본 발명의 구성들 중 종래기술과 동일한 구성에 대해서는 전술한 종래기술을 참조하기로 하고 별도의 상세한 설명은 생략한다.For reference, among the configurations of the present invention to be described below, the same configuration as the prior art will be referred to the above-described prior art, and a detailed description thereof will be omitted.

도 2는 본 발명의 바람직한 실시예에 따른 냉매 리크(leak) 검지 방법에 따른 순서도이다.2 is a flowchart illustrating a refrigerant leak detection method according to a preferred embodiment of the present invention.

본 발명의 냉매 리크 검지 방법은, 2개 룸 이상의 직간냉 혼합 냉장고에서 사용되는 냉매 리크 검지 방법으로써, 간냉식 룸의 고내온도센서를 이용하여 냉매 리크(leak)를 검지한다.The refrigerant leak detection method of the present invention is a refrigerant leak detection method used in two or more rooms of a direct-to-cold mixed refrigerator, and detects a refrigerant leak using a high temperature sensor in an intercooled room.

상기 간냉식 룸의 고내온도센서는 간냉식 룸의 증발기 표면에 직접 붙어있어 제품동작에 따른 반응속도가 빠르므로, 간냉식 룸의 온도변화를 빠르게 측정할 수 있다는 이점이 있다.The high temperature sensor of the intercooled room is directly attached to the surface of the evaporator of the intercooled room, so the reaction speed is high according to the operation of the product.

본 발명의 냉매 리크 검지 방법은, 도 2에 도시된 바와 같이, 전원이 ON이 되고 제상 완료 시점에 고내 온도를 측정하여 냉매 리크(leak)를 감지하되, 직냉식 룸의 온도차가 아닌 간냉식 룸의 온도차(T1-T2)에 의해 냉매 리크(leak)를 결정하는 것을 특징으로 한다.In the refrigerant leak detection method of the present invention, as shown in Figure 2, when the power is turned on and the defrost completion time by measuring the internal temperature to detect the refrigerant leak (leak), the temperature difference of the intercooled room, not the temperature difference of the direct cooling room A coolant leak is determined by (T 1 -T 2 ).

이하 전술한 구성을 갖는 본 실시예의 작용을 설명한다.Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

제상이 완료된 시점에 간냉식 룸의 고내온도인 제1온도(T1)를 측정한다.(S1)When the defrost is completed, the first temperature T 1 , which is the internal temperature of the intercooled room, is measured.

압축기가 가동되고, 일정 시간이 경과한 후, 상기 간냉식 룸의 고내온도인 제2온도(T2)를 측정한다.(S3)After the compressor is started and a predetermined time has elapsed, the second temperature T 2 , which is the internal temperature of the intercooled room, is measured.

상기 제1온도(T1)에서 상기 제2온도(T2)를 뺀 값(T1-T2)이 일정값(A) 이하인지 판단한다.(S5)It is determined whether the value (T 1 -T 2 ) obtained by subtracting the second temperature (T 2 ) from the first temperature (T 1 ) is equal to or less than a predetermined value (A).

상기 제1온도(T1)에서 상기 제2온도(T2)를 뺀 값(T1-T2)이 일정값(A) 이하인 경우가 N회 반복될 경우(S7), 냉매 리크(leak)로 판단한다.(S9)When the value (T 1 -T 2 ) obtained by subtracting the second temperature (T 2 ) from the first temperature (T 1 ) is equal to or less than a predetermined value (A) is repeated N times (S7), the refrigerant leaks. (S9)

또한, 상기 제1온도(T1)에서 상기 제2온도(T2)를 뺀 값(T1-T2)이 일정값(A)을 전후로 하여, 변화의 폭이 적을 경우에도 냉매 리크(leak)로 판단할 수 있다.In addition, even when the first temperature (T 1) and around the said second temperature (T 2) obtained by subtracting the value (T 1 -T 2) is a constant value (A), less the width of the change in the refrigerant leak (leak Can be judged.

디스플레이에 냉매 리크(leak) 에러 코드를 표시한다.The display shows the refrigerant leak error code.

이러한 냉매 리크 검지 방법은, 제상이 주기적으로 되므로, 리크(leak)를 상시로 검지할 수 있다는 이점이 있다.This refrigerant leak detection method has an advantage that the leak can be detected at all times because the defrosting is performed periodically.

또한, 제품 전원이 ON 시, 고내온도 보다 높은 온도의 식품이 고내에 대량 투입 시에도, 상기 제1온도(T1)에서 상기 제2온도(T2))를 뺀 값(T1-T2)이 일정값(A) 이하인 경우가 N회 반복될 경우(S7)에 리크(leak)를 판단하므로, 냉매 리크(leak) 판단 오류 가능성을 최소화할 수 있다.Further, even when the product in the high-power-on mass of the high temperature food than ON time, inside temperature, obtained by subtracting the first temperature (T 1) and the second temperature (T 2) in the) value (T 1 -T 2 Since the leak is determined in a case where N) is equal to or less than a predetermined value A (S7), the possibility of a refrigerant leak determination error can be minimized.

상술한 바와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당기술분야의 당업자는 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 또는 변형하여 실시할 수 있다.As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

이상과 같이, 본 발명에 따른 냉매 리크 검지 방법은, 특히, 냉매 리크(leak)를 빠르게 판단하는 냉장고 및 김치냉장고에 적합하다.As described above, the refrigerant leak detection method according to the present invention is particularly suitable for a refrigerator and a kimchi refrigerator for quickly determining a refrigerant leak.

T1' : 직냉식 룸의 제1온도 T2' : 직냉식 룸의 제2온도
T1 : 간냉식 룸의 제1온도 T2 : 간냉식 룸의 제2온도T 1 ′: first temperature in the direct cooling room T 2 ′: second temperature in the direct cooling room
T 1 : first temperature of the intercooled room T 2 : second temperature of the intercooled room

Claims (5)

전원이 ON이 되고 제상 완료 시점에 고내 온도를 측정하여 냉매 리크(leak)를 감지하되, 직냉식 룸의 온도차가 아닌 간냉식 룸의 온도차에 의해 냉매 리크(leak)를 결정하는 것을 특징으로 하는 냉매 리크(leak) 검지 방법.Refrigerant leak, characterized in that the refrigerant is detected by measuring the internal temperature at the time of completion of defrosting, and the refrigerant leak is determined by the temperature difference of the intercooled room, not the temperature difference of the direct cooling room. leak) Detection method. 제상완료 후 간냉식 룸의 고내온도인 제1온도를 측정하는 단계;
일정 시간 경과 후 간냉식 룸의 고내온도인 제2온도를 측정하는 단계;
상기 제1온도와 상기 제2온도에 의해 리크(leak) 여부를 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.Measuring a first temperature which is a high internal temperature of the intercooled room after completion of defrosting;
Measuring a second temperature which is a high internal temperature of the intercooled room after a predetermined time elapses;
And determining whether to leak based on the first temperature and the second temperature. 청구항 2에 있어서,
상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우 리크(leak)로 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 2,
And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value A. A refrigerant leak detection method comprising a. 청구항 3에 있어서,
상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우가 N회 반복하는 경우 리크(leak)로 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 3,
And determining a leak when the value obtained by subtracting the second temperature from the first temperature is equal to or less than a predetermined value (A) is repeated N times. Refrigerant leak detection method comprising a. 청구항 2 또는 청구항 3에 있어서,
제품 전원이 ON 시, 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우가 N회 반복하는 경우 리크(leak)로 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 2 or 3,
Determining the leak (leak) when the value of the first temperature subtracted the second temperature from the first temperature is less than a predetermined value (A) is repeated N times when the product power is ON; Way.
KR1020100062462A 2010-06-30 2010-06-30 Refrigerant leak detection method KR20120001861A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587540A (en) * 2021-08-09 2021-11-02 元气森林(北京)食品科技集团有限公司 Method, equipment, medium and product for detecting faults of temperature control cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587540A (en) * 2021-08-09 2021-11-02 元气森林(北京)食品科技集团有限公司 Method, equipment, medium and product for detecting faults of temperature control cabinet

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