KR0136083Y1 - Refrigeration cycle apparatus - Google Patents

Refrigeration cycle apparatus Download PDF

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Publication number
KR0136083Y1
KR0136083Y1 KR2019930002163U KR930002163U KR0136083Y1 KR 0136083 Y1 KR0136083 Y1 KR 0136083Y1 KR 2019930002163 U KR2019930002163 U KR 2019930002163U KR 930002163 U KR930002163 U KR 930002163U KR 0136083 Y1 KR0136083 Y1 KR 0136083Y1
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KR
South Korea
Prior art keywords
compressor
evaporator
refrigerant
condenser
refrigeration cycle
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KR2019930002163U
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Korean (ko)
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KR940021060U (en
Inventor
서국정
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김광호
삼성전자주식회사
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Priority to KR2019930002163U priority Critical patent/KR0136083Y1/en
Publication of KR940021060U publication Critical patent/KR940021060U/en
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Publication of KR0136083Y1 publication Critical patent/KR0136083Y1/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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02731—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one three-way valve
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves

Abstract

이 고안은 냉장고의 제상장치에 관한 것으로서, 특히 제상시간을 단축시켜 열손실을 최소화하고 그에 따른 압축기의 과열을 방지하기 위하여 제상운전시 냉매가 압축기→보조냉매관→증발기→보조모세관→압축기의 순으로 순환되도록 하여서된 특징적인 구성에 의해 증발기가 응축기로 변환되어 성에제거가 신속하게 수행하고, 또한 압축기가 증발기로 변환되어 그 냉각이 신속하게 수행되게 된 것이다.The present invention relates to a defrosting device of a refrigerator, and in particular, in order to shorten the defrosting time to minimize heat loss and to prevent overheating of the compressor, the refrigerant flows from the compressor to the auxiliary refrigerant pipe, the evaporator, the auxiliary capillary tube, and the compressor during the defrosting operation. The evaporator is converted to a condenser and defrosting is performed quickly, and the compressor is converted to an evaporator, and the cooling is performed quickly by the characteristic configuration.

Description

냉동사이클장치Refrigeration cycle device

제1도는 본 고안 냉동사이클 장치의 계통도.1 is a system diagram of the present invention refrigeration cycle apparatus.

제2도는 종래 냉동사이클장치의 계통도2 is a system diagram of a conventional refrigeration cycle apparatus

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 압축기 2 : 응축기1: compressor 2: condenser

3 : 모세관 30 : 보조모세관3: capillary tube 30: auxiliary capillary tube

4 : 증발기 5 : 순환냉매관4: evaporator 5: circulation refrigerant tube

50 : 보조순환냉매관 6 : 삼방밸브50: auxiliary circulation refrigerant pipe 6: three-way valve

7 : 차단밸브7: shut off valve

본 고안으 냉동사이클장치에 관한 것으로서, 특히 증발기로 고온고압의 기체냉매를 공급하여 증발기 표면에 착상된 성에를 신속하게 제거하여 줌으로써 제상운전에 따른 열손실을 극소화한 냉동사이클 장치에 관한 것이다.The present invention relates to a refrigeration cycle apparatus, and more particularly, to a refrigeration cycle apparatus that minimizes the heat loss of the defrosting operation by supplying a high-temperature, high-pressure gas refrigerant to the evaporator to quickly remove frost formed on the surface of the evaporator.

본 고안은 또 제상운전시 압축기로 저온저압의 기체냉매를 공급하여 압축기가 과열되지 않도록 함으로써, 압축기효율을 향상한 냉동사이클 장치에 관한 것이다.The present invention also relates to a refrigeration cycle apparatus that improves the compressor efficiency by supplying a low-temperature low-pressure gas refrigerant to the compressor during defrosting operation so that the compressor is not overheated.

일반적으로 증기압축식 냉동사이클 장치는 정상운전시 압축기→응축기→모세관→증발기→압축기의 순으로 냉매가 순환된다.Generally, the refrigerant is circulated in the order of a compressor, a condenser, a capillary, an evaporator, and a compressor in the normal operation of the vapor compression refrigeration cycle apparatus.

또한, 냉매가 압축기에서 고온고압의 기체냉매로, 응축기에서 상온 고압의 액체냉매로, 모세관에서 저온저압의 액체냉매로 변환된다. 그리고 모세관을 거친 냉매가 증발기에서 주위열을 흡수하면서 기체냉매로 변환되고, 이 과정에서 증발기주위의 온도가 영하로 내려간다.In addition, the refrigerant is converted into a high-temperature, high-pressure gas refrigerant in the compressor, a liquid refrigerant of room temperature and high pressure in the condenser, and a liquid refrigerant of low temperature and low pressure in the capillary. The refrigerant passing through the capillary is converted into a gaseous refrigerant by absorbing ambient heat in the evaporator, and in the process, the temperature around the evaporator drops to below zero.

그러나 상기 증발기의 표면에는 증발기주위의 냉기가 열교환되는 과정에서 냉기중에 포함되 있는 수분이 착상되어 성에로 변환되는 결함이 있다.However, the surface of the evaporator has a defect that the moisture contained in the cold air in the process of heat exchange of the cold air around the evaporator is converted to frost.

상기와 같이 증발기 표면에 성에가 많이 착상되면 이 성에가 단열층을 형성하는 결과가 되어 냉기의 열교환에 지장을 초래하게 된다.As described above, when a lot of frost is formed on the surface of the evaporator, the frost forms a heat insulation layer, which causes a problem in the heat exchange of cold air.

따라서 종래에는 제2도에서 처럼 압축기(1), 응축기(2), 모세관(3), 증발기(4)등으로 구성된 냉동사이클 장치에서 상기 증발기(4)의 주위에 전열히터(40)를 배치하였다.Therefore, in the related art, a heat transfer heater 40 is disposed around the evaporator 4 in a refrigeration cycle apparatus including a compressor 1, a condenser 2, a capillary tube 3, an evaporator 4, and the like as in FIG. 2. .

이 전열히터(40)는 증발기(4)표면에 성에가 많이 착상되면 작동되는것으로서 그 열기로써 증발기 표면의 성에를 제거하였다.The electric heater 40 is operated when a lot of frost is formed on the surface of the evaporator 4, and the heat is removed from the surface of the evaporator by the heat.

이를 통상적으로 제상운전이라 칭하는데, 이와같이 제상운전을 할때에는 압축기(1)는 운전정지상태에 있게도니다.This is commonly referred to as defrost operation. In this defrost operation, the compressor (1) may be in a stopped operation state.

그러나 상기 냉동사이클장치를 이용하는 냉장고의 경우, 제상운전시 전열히터(40)가 증발기(4)를 간접가열하기 때문에 제상시간이 오래 걸려 냉장고내의 온도가 자연 상승하게 되고, 그에따라 열 손실이 크게되는 문제점이 있었다.However, in the case of the refrigerator using the refrigerating cycle device, since the electric heater 40 indirectly heats the evaporator 4 during the defrosting operation, the defrosting takes a long time and the temperature in the refrigerator naturally rises, thereby increasing the heat loss. There was a problem.

또한, 정상운전시 작동되어 뜨거워진 압축기가 제상운전시 운전정지상태에서 서서히 냉각됨에 따라 미처 냉각되기도 전에 제상이 끝나면 재차 작동되어야 하기 때문에 압축기의 피로현상이 심각한 등의 문제점이 있었다.In addition, since the compressor, which has been operated during normal operation, is gradually cooled in an operation stop state during defrost operation, it has to be operated again after defrosting before it is cooled.

본 고안은 상기의 점을 감안하여 안출한 것으로서,This invention was devised in view of the above points,

그 목적은 제상운전시 별도의 히터를 사용하지 않고 압축기에서 토출하는 고온고압의 냉매를 직접 증발기로 공급하여 그 표면에 착상된 성에를 제거하여 줌으로써 제상을 신속하게 하고 그에따른 열손실을 극소화한 냉동사이클장치를 제공함에 있다.Its purpose is to provide fast evaporation by removing high temperature and high pressure refrigerant discharged from the compressor directly to the evaporator without using a separate heater during defrosting operation to remove defrosting on the surface of the defrosting and minimizing heat loss. In providing a cycle device.

본 고안의 다른 목적은 제상운전시 증발기에서 토출하는 냉매를 저온저압상태로 변환하고 이 변환한 냉매를 압축기로 공급하여 열교환함으로써 압축기의 과열을 방지하고 그 효율을 향상한 냉동사이클 장치를 제공함에 있다.Another object of the present invention is to provide a refrigeration cycle apparatus that prevents overheating of the compressor and improves its efficiency by converting the refrigerant discharged from the evaporator during the defrosting operation into a low temperature low pressure state and supplying the converted refrigerant to the compressor for heat exchange. .

상기의 목적을 달성하기 위한 본 고안은 상기 증발기표면에 성에가 발생하는 주기마다 압축기의 냉매가 직접 증발기를 거쳐 압축기로 향하는 제상수단을 마련한 특징이 있다.The present invention for achieving the above object is characterized in that the defrost means for directing the refrigerant of the compressor to the compressor through the evaporator at every cycle in which frost occurs on the surface of the evaporator.

이하, 본 고안의 바람직한 실시예를 첨부도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 고안 냉동사이클장치의 개략적인 계통도이다.1 is a schematic system diagram of the present invention refrigeration cycle apparatus.

즉, 냉동사이클장치가 압축기(1), 응축기(2), 모세관(3), 증발기(4) 등으로 구성되고, 이들이 순환냉매관(5)에 의해 연결된 상태에서 본 고안은 압축기(1)에서 토출하는 냉매를 직접 증발기(4)를 거쳐 압축기(1)로 순환하게 제상수단(8)을 마련한다.That is, the refrigerating cycle device is composed of a compressor (1), a condenser (2), a capillary tube (3), an evaporator (4), etc., the present invention in the state in which they are connected by a circulating refrigerant pipe (5) The defrosting means 8 is provided so that the refrigerant to be discharged is circulated directly to the compressor 1 via the evaporator 4.

상기 제상수단(8)의 바람직한 실시예는 압축기(1)와 증발기(4)사이에 보조순환냉매관(50)을 형성하고, 압축기(1)에서 토출하는 냉매를 선택적으로 응축기(2)와 증발기(4)로 향하게 압축기(1)의 출구측에 삼방밸브(6)를 형성한다.The preferred embodiment of the defrosting means 8 forms an auxiliary circulation refrigerant pipe 50 between the compressor 1 and the evaporator 4 and selectively cools the refrigerant discharged from the compressor 1 to the condenser 2 and the evaporator. A three-way valve 6 is formed on the outlet side of the compressor 1 so as to face (4).

또한, 상기 삼방밸브(6)가 압축기(1)와 응축기(2)를 연결할때 개방하고 압축기(1)와 증발기(4)를 연결할때 폐쇄하는 차단밸브(7)를 증발기(4)와 압축기(1)사이의 순환냉매관(5)에 형성한다.In addition, the three-way valve (6) is opened when connecting the compressor (1) and the condenser (2) and the shutoff valve (7) for closing when connecting the compressor (1) and the evaporator (4) evaporator (4) and the compressor ( 1) is formed in the circulation refrigerant pipe (5).

또한, 증발기(4)에서 토출하는 냉매가 압축기(1)로 향할때 감압하는 보조모세관(30)을 증발기(4)와 압축기(1)사이의 보조순환냉매관(50)에 형성한다.In addition, an auxiliary capillary tube 30 for reducing the pressure when the refrigerant discharged from the evaporator 4 is directed to the compressor 1 is formed in the auxiliary circulation refrigerant tube 50 between the evaporator 4 and the compressor 1.

상기와 같이 구성한 본 고안은, 정상운전시 삼방밸브(6)를 압축기(1)와 응축기(2)가 연결되는 쪽으로 조작하고, 차단밸브(7)를 증발기(4)와 압축기(1)가 연결되는 쪽으로 조작한다.According to the present invention configured as described above, the three-way valve 6 is operated to be connected to the compressor 1 and the condenser 2 during normal operation, and the shutoff valve 7 is connected to the evaporator 4 and the compressor 1. Manipulate towards

상기와 같이 하면 냉매가 압축기(1)→응축기(2)→모세관(3)→증발기(4)→압축기(1)의 순으로 순환되어 통상적인 냉동사이클이 구성된다.In this manner, the refrigerant is circulated in the order of the compressor 1, the condenser 2, the capillary tube 3, the evaporator 4, and the compressor 1, thereby forming a normal refrigeration cycle.

또한, 제상운전시에는 정상운전시와 반대로 삼방밸브(6)와 차단밸브(7)를 조작한다.In the defrosting operation, the three-way valve 6 and the shutoff valve 7 are operated as opposed to the normal operation.

그러면 냉매가 압축기(1)→증발기(4)→보조모세관(30)→압축기(1)의 순으로 되어 제상이 행해진다.The refrigerant is then defrosted in the order of the compressor 1, the evaporator 4, the auxiliary capillary 30, and the compressor 1.

이를 좀더 자세하게 설명하면 압축기(1)로 부터의 고온고압의 기체냉매가 증발기(4)를 통과하면서 고열을 외부로 방출한다. 이때 증발기(4)표면에 착상된 성에가 제거된다.In more detail, the high-temperature, high-pressure gas refrigerant from the compressor 1 passes through the evaporator 4 and emits high heat to the outside. At this time, frost formed on the surface of the evaporator 4 is removed.

또한, 증발기(4)를 거친 냉매가 보조모세관(30)을 통과하면서 저온 저압의 액체냉매로 변환된 다음 압축기(1)의 흡입구로 향하게됨에 따라 압축기(1)내의 고열로 흡입하여 증발이 일어나게 된다.In addition, the refrigerant passing through the evaporator 4 is converted into a liquid refrigerant of low temperature and low pressure while passing through the auxiliary capillary 30, and then directed to the inlet of the compressor 1, whereby the refrigerant is sucked at a high temperature in the compressor 1 to evaporate. .

따라서 상기 과정에서 증발기(4)가 응축기의 역할을 하고 압축기(1)가 증발기의 역할을 한다.Therefore, in the process, the evaporator 4 serves as a condenser and the compressor 1 serves as an evaporator.

또한, 제상운전이 끝나면 각 밸브(6)(7)를 조작하여 다시 정상운전의 상태로 변환한다.After the defrosting operation is completed, the valves 6 and 7 are operated to switch back to the normal operation state.

이상에서와 같이 본 고안에 따르면 제상운전시 별도의 히터를 사용하지 않고 증발기로 고온고압의 기체냉매를 공급하여 증발기 표면의 성에를 신속하게 제거하여 줌으로써 열손실을 극소화한 효과가 있다.As described above, according to the present invention, there is an effect of minimizing heat loss by supplying a gas refrigerant having a high temperature and high pressure to the evaporator without using a separate heater during defrosting operation to quickly remove frost on the surface of the evaporator.

또한, 제상운전시 압축기로 저온저압의 액체냉매를 공급하여 압축기 효율을 향상한 효과가 있다.In addition, there is an effect of improving the compressor efficiency by supplying a low temperature low pressure liquid refrigerant to the compressor during the defrosting operation.

Claims (2)

냉매를 고온고압으로 압축시키는 압축기(1)와, 상기 압축기(1)에서 압축된 냉매를 응축시키며 상기 압축기(1)와 순환냉매관(5)을 매개로 접속된 응축기(2)와, 상기 응축기(2)에서 응축된 냉매를 저온저압의 냉매로 변환시키는 모세관(3)과, 상기 모세관(3)을 통과한 냉매를 증발시켜 상기 압축기(1)로 공급하며 상기 압축기(1)와 순환냉매관(5)에 의해 접속된 증발기(4)로 이루어진 냉동사이클장치에 있어서, 상기 증발기(4)의 제상운전시 상기 압축기(1)에서 압축된 고온고압의 냉매에 의해 상기 증발기(4)를 제상시키도록, 상기 응축기(2)와 상기 압축기(1)를 접속하는 상기 순환냉매관(5)과 상기 증발기(4)를 연결시키는 보조순환냉매관(50)과, 상기 압축기(1)에서 토출되는 냉매가 선택적으로 상기 응축기(2)와 상기 증발기(4)로 공급되도록 상기 순환냉매관(5)과 상기 보조순환냉매관(50)의 접속부위에 장착된 삼방밸브(6)와. 상기 삼방밸브(6)에 의해 상기 압축기(1)의 냉매가 상기 응축기(2)로 공급될 경우에는 개방되고 상기 삼방밸브(6)에 의해 상기 압축기(1)의 냉매가 상기 증발기(4)로 공급될 경우에는 폐쇄되며 상기 증발기(4)와 상기 압축기(1)를 접속하는 상기 순환냉매관(5)에 장착된 개폐밸브(7)로 이루어진 것을 특징으로 하는 냉동사이클 장치.A compressor (1) for compressing the refrigerant at high temperature and high pressure, a condenser (2) connected to the compressor (1) and a circulating refrigerant pipe (5) by condensing the refrigerant compressed by the compressor (1), and the condenser A capillary tube (3) for converting the refrigerant condensed in (2) into a refrigerant having a low temperature and a low pressure, and the refrigerant passing through the capillary tube (3) is evaporated and supplied to the compressor (1), and the compressor (1) and the circulation refrigerant tube In the refrigerating cycle apparatus consisting of the evaporator (4) connected by (5), during the defrosting operation of the evaporator (4), the evaporator (4) is defrosted by the high temperature and high pressure refrigerant compressed by the compressor (1). The secondary circulation refrigerant pipe (50) for connecting the circulation refrigerant pipe (5) and the evaporator (4) for connecting the condenser (2) and the compressor (1), and the refrigerant discharged from the compressor (1) Is selectively supplied to the condenser (2) and the evaporator (4) and the circulation refrigerant pipe (5) and the A three-way valve (6) mounted at the connection portion of the auxiliary circulation refrigerant pipe (50). When the refrigerant of the compressor 1 is supplied to the condenser 2 by the three-way valve 6, the refrigerant of the compressor 1 is opened to the evaporator 4 by the three-way valve 6. The refrigeration cycle device, characterized in that the closing valve is made of an on-off valve (7) attached to the circulation refrigerant pipe (5) connecting the evaporator (4) and the compressor (1) when supplied. 제1항에 있어서, 상기 증발기(4)와 상기 압축기(1)의 사이에는 보조모세관(30)이 구비된 것을 특징으로 하는 냉동사이클 장치.The refrigeration cycle apparatus according to claim 1, wherein an auxiliary capillary tube (30) is provided between the evaporator (4) and the compressor (1).
KR2019930002163U 1993-02-17 1993-02-17 Refrigeration cycle apparatus KR0136083Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100566001B1 (en) * 2004-06-18 2006-03-30 위니아만도 주식회사 Defrosting control method of heat pump type air-conditioner in outdoor low temperature condition
KR101480277B1 (en) * 2014-04-02 2015-01-08 장정익 Forst Free Airconditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100566001B1 (en) * 2004-06-18 2006-03-30 위니아만도 주식회사 Defrosting control method of heat pump type air-conditioner in outdoor low temperature condition
KR101480277B1 (en) * 2014-04-02 2015-01-08 장정익 Forst Free Airconditioner

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