KR970009803B1 - Refrigerating cycle apparatus - Google Patents

Refrigerating cycle apparatus Download PDF

Info

Publication number
KR970009803B1
KR970009803B1 KR1019930020804A KR930020804A KR970009803B1 KR 970009803 B1 KR970009803 B1 KR 970009803B1 KR 1019930020804 A KR1019930020804 A KR 1019930020804A KR 930020804 A KR930020804 A KR 930020804A KR 970009803 B1 KR970009803 B1 KR 970009803B1
Authority
KR
South Korea
Prior art keywords
compressor
condenser
temperature
evaporator
refrigerant
Prior art date
Application number
KR1019930020804A
Other languages
Korean (ko)
Other versions
KR950011999A (en
Inventor
박진구
Original Assignee
대우전자 주식회사
배순훈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대우전자 주식회사, 배순훈 filed Critical 대우전자 주식회사
Priority to KR1019930020804A priority Critical patent/KR970009803B1/en
Publication of KR950011999A publication Critical patent/KR950011999A/en
Application granted granted Critical
Publication of KR970009803B1 publication Critical patent/KR970009803B1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02732Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General 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
    • F25B2400/04Refrigeration circuit bypassing means
    • F25B2400/0401Refrigeration circuit bypassing means for the compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The refrigerating cycle device is provided with a by-pass unit inducing refrigerant of a gas state of a high temperature and high pressure generated in a condenser upon stopping an operation of the condenser to directly enter the condenser.

Description

냉동사이클 장치Refrigeration cycle device

제1도는 일반적인 냉동사이클 장치의 계통도.1 is a schematic diagram of a general refrigeration cycle apparatus.

제2도 (a)는 일반적인 압축기 운전시의 p-h 선도이고, (b)는 압축기 운전정지시의 p-h 선도이다.FIG. 2 (a) is a p-h diagram at a normal compressor operation, and (b) is a p-h diagram at a compressor shutdown.

제3도는 본 발명의 계통도.3 is a schematic diagram of the present invention.

제4도는 본 발명의 압축기 운전정지시의 p-h 선도.4 is a p-h diagram of a compressor shutdown of the present invention.

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

1 : 압축기 2 : 응축기1: compressor 2: condenser

3 : 모세관 4 : 증발기3: capillary tube 4: evaporator

5 : 바이패스수단, 500,510 : 삼방밸브5: bypass means, 500,510: three way valve

520 : 바이패스관520: bypass tube

본 발명은 냉동사이클 장치에 관한 것으로서, 특히 압축기의 운전정지시 응축기에서 발생하는 고온, 고압의 기체상태 냉매가 압축기로 직접 들어가도록 함으로서, 증발기의 온도가 상승되지 않게 한 냉동사이클 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration cycle apparatus, and more particularly, to a refrigeration cycle apparatus in which a high-temperature, high-pressure gaseous refrigerant generated in a condenser when the compressor is shut down directly enters the compressor, thereby preventing the temperature of the evaporator from rising.

일반적으로 냉동사이클 장치는제1도에 도시한 바와 같이 냉매를 고온고압의 기체상태로 압축하는 압축기(1)와, 냉각팬(6)으로 기체상태 냉매를 상온고압의 액체 상태로 변화시키는 은축기(2)와, 상기 상온고압의 냉매를 저온저압의 기체상태 냉매로 변화시키는 모세관(3)과, 상기 저온저압의 기체 상태 냉매가 증발하면서 주위를 냉각하는 증발기(4)로 구성된다.Generally, a refrigeration cycle apparatus includes a compressor (1) for compressing a refrigerant into a gaseous state of high temperature and high pressure as shown in FIG. (2), a capillary tube (3) for converting the coolant at room temperature and high pressure into a gaseous refrigerant at low temperature and low pressure, and an evaporator (4) for cooling the surroundings while the gaseous refrigerant at low temperature and low pressure evaporates.

상기과 같이 구성된 냉동사이클 장치는 대개가 가전제품인 냉장고나 에어컨디셔너 등에 사용이 되는 것으로서, 상기 가전제품에 사용될때에는 압축기(1)가 주기적으로 운전 및 운전정지되어 주위를 적정온도로 냉각하도록 되어 있다. 그러나 압축기가 운전정지 되었을 때 응축기(2)를 통과중인 냉매가 고온고압의 기체상태로 존재하기 때문에, 압력차로 인하여 저온저압 상태인 증발기(4)쪽으로 이동하는 문제가 있었다.The refrigeration cycle device configured as described above is generally used for refrigerators, air conditioners, etc., which are home appliances, and when used in the home appliances, the compressor 1 is periodically operated and stopped to cool the surroundings to an appropriate temperature. However, since the refrigerant passing through the condenser 2 exists in the gas state at high temperature and high pressure when the compressor is stopped, there is a problem of moving toward the low temperature low pressure evaporator 4 due to the pressure difference.

이와 같이 응축기(2)의 냉매가 순간적으로 모세관(3)을 거쳐 증발기(4)쪽으로 이동하면 증발기온도가 상승하여 냉각되었던 주위가 가열될 뿐 아니라 냉동사이클 장치의 효울도 저하되는 것이다.As such, when the refrigerant in the condenser 2 moves toward the evaporator 4 through the capillary tube 3 instantaneously, the temperature of the evaporator is increased to cool the surroundings, and the efficiency of the refrigeration cycle apparatus is lowered.

이와같이 응축기(2)의 냉매가 순간적으로 모세관(3)을 거텨 증발기(4)쪽으로 이동하면 증발기온도가 상승하여 냉각되었던 주위가 가열될뿐 아니라 냉동사이클 장치의 효율도 저하되는 것이다.As such, when the refrigerant of the condenser 2 moves toward the evaporator 4 through the capillary tube 3 instantaneously, the evaporator temperature rises, thereby cooling not only the surroundings that have been cooled but also lowering the efficiency of the refrigeration cycle apparatus.

이를 p-h선도로 설명하면 제2도 (a)에 도사한 바와같이 압축기(1)가 운전상태일때는, 압축상태(A)→응축상태(B)→팽창상태(C)→증발상태(D)의 순으로 냉기가 순환되는 반면에, 압축기가 운전정지 상태일 때는 제2도 (b)에 도시한 바와같이 응축되지 않은 고온고압의 기체냉매발생상태(B')→팽창되지 않고 모세관을 통과하는 상태(C')→증발기온도가 올라가는 상태(d')로 변하게 된다. 상기에서(A')는 압축기 운전정지상태를 나타낸다.In the diagram of ph diagram, as shown in FIG. 2A, when the compressor 1 is in an operating state, the compressed state (A) → condensed state (B) → expanded state (C) → evaporation state (D) While cold air is circulated in the order of, while the compressor is in a stopped state, as shown in FIG. 2 (b), a gas refrigerant generation state (B ') of high temperature and high pressure that is not condensed passes through a capillary tube without expansion. The state (C ') is changed to the state (d') where the evaporator temperature rises. In the above (A ') represents the compressor operation stop state.

본 발명은 상기의 점을 감안하여 개발한 것으로서, 그 목적은 압축기가 운전정지 상태일 때 응축기에서 발생하는 고온, 고압의 기체상태 냉매를 압축기로 직접들어가게 함으로써, 증발기의 온도상승을 방지하고 냉동사이클 장치의 효율을 향상한 냉동사이클 장치를 제공함에 있다.The present invention was developed in view of the above point, and its object is to prevent the temperature rise of the evaporator by directly entering the high-temperature, high-pressure gaseous refrigerant generated in the condenser when the compressor is stopped, thereby preventing the temperature rise of the evaporator and refrigeration cycle The present invention provides a refrigeration cycle apparatus that improves the efficiency of the apparatus.

상기의 목적을 달성하기 위한 본 발명은 압축기의 운전정지시 응축기에서 발생하는 고온고압의 기체상태냉매를 압축기로 직접 들어가게 하는 바이패스 수단을 마련하여서 된 특징이 있다.The present invention for achieving the above object is characterized in that by providing a bypass means for directly entering the high-temperature, high-pressure gas state refrigerant generated in the condenser when the compressor is stopped.

아하, 본 발명의 바람직한 실시예를 첨부도면에 따라 상세히 설명하면 다음과 같다.Aha, a preferred embodiment of the present invention will be described in detail according to the accompanying drawings.

제3도는 본 발명의 계통도로서, 냉매를 압축하는 압축기(1)와, 냉매를 응축하는 응축기(2)와, 냉매를 팽창하는 모세관(3)과, 냉매를 증발하여 주위를 냉각하는 증발기(4)로 구성함에 있어서, 상기 압축기(1)의 운전정지시 응축기(2)에서 발생하는 고온고압의 기체냉매를 압축기(1)로 직접들어가게하는 바이패스수단(5)을 마련한다. 상기 바이패스수단(5)은 응축기(1)의 흡입구측에 형성한 삼방밸브(510)와, 상기 각 삼방밸브(500)(510)를 연결하는 바이패스관(520)으로 구성한다.3 is a system diagram of the present invention, which includes a compressor 1 for compressing a refrigerant, a condenser 2 for condensing the refrigerant, a capillary tube 3 for expanding the refrigerant, and an evaporator 4 for evaporating the refrigerant to cool the surroundings. In the configuration, the bypass means (5) is provided to allow the high-temperature, high-pressure gas refrigerant generated by the condenser (2) to directly enter the compressor (1) when the compressor (1) is stopped. The bypass means 5 is composed of a three-way valve 510 formed on the inlet side of the condenser 1 and a bypass pipe 520 connecting the three-way valves 500 and 510.

상기와 같이 구성한 본 발명은, 압축기의 운전시 상시 삼방밸브(500)가 응축기(2)와 모세관(3)을 , 상기 삼방밸브(510)가 증발기(4)와 압축기(1)를 각각 연결하도록 조절한 다음 압축기(1)를 운전한다. 그러면 냉매가 압축기(1)→응축기(2)→모세관(3)→증발기(4)→압축기(1)의 순으로 순환하는 통상적인 사이클이 형성된다.In the present invention configured as described above, the three-way valve 500 is always connected to the condenser 2 and the capillary tube 3 during operation of the compressor, and the three-way valve 510 is connected to the evaporator 4 and the compressor 1, respectively. After adjusting, operate the compressor (1). Then, a conventional cycle is formed in which the refrigerant circulates in the order of the compressor 1, the condenser 2, the capillary tube 3, the evaporator 4, and the compressor 1.

한편, 압축기의 운전정지시에는 상기 각 삼방밸브(500)(510)를 조절하여 응축기(2)와 압축기(1)가 바이패스관(52)을 통하여 직접연결되게 한다. 그러면 응축기(2)에서 응축하지 못한 고온고압의 기체냉매가 바이패스관(520)을 통하여 직접 압축기(1)로 들어가게 된다. 따라서 증발기(4)에는 아무런 변화가 일어나지 않게 되어 저온상태를 그대로 유지하게 되고, 또한 증발기 주위(즉, 냉동고의 경우에는 냉동실과 냉장실, 에어컨디셔너의 경우에는 실내를 지칭하는 것임)의 온도변화가 극소화된다.Meanwhile, when the compressor is stopped, the three-way valves 500 and 510 are adjusted to allow the condenser 2 and the compressor 1 to be directly connected through the bypass pipe 52. Then, the high-temperature, high-pressure gas refrigerant, which cannot be condensed in the condenser 2, enters the compressor 1 directly through the bypass pipe 520. Therefore, no change occurs in the evaporator 4 so as to maintain the low temperature state, and the temperature change around the evaporator (that is, in the case of the freezer, the freezer and the refrigerating chamber and the air conditioner refers to the interior) is minimized. .

상기 과정을 p-h선도를 설명하면 제4도에 도시한 바와같이 고온고압의 기체냉매발생상태(B')→바이패스상태(E)→압축기 유입상태(A')의 순으로 냉매가 이동된다.Referring to the p-h diagram of the above process, as shown in FIG. 4, the refrigerant is moved in the order of the high temperature and high pressure gas refrigerant generation state B '→ bypass state E → compressor inflow state A'.

한편 (C),(D)는 냉매흐름이 중지된 팽창 및 증발상태를 나타낸다.On the other hand (C), (D) represents the expansion and evaporation state of the refrigerant flow is stopped.

이상에서와 같이 본 발명에 따르면, 압축기의 운전정지시 응축기에서 발생하는 고온고압의 기체냉매가 압력차로 인하여 저온저압 상태인 증발기로 유입되지 않고 직접 압축기로 유입되기 때문에증발기의 온도가 상승되지 않고, 또한 냉동사이클 장치의 효율이 향상되는 등의 효과가 있다.As described above, according to the present invention, since the high-temperature, high-pressure gas refrigerant generated in the condenser when the operation of the compressor is stopped does not flow into the evaporator at low temperature and low pressure due to the pressure difference, the temperature of the evaporator does not increase, In addition, the efficiency of the refrigeration cycle apparatus is improved.

Claims (1)

압축기(1), 응축기(2), 모세관(3) 및 증발기(4)로 구성되는 냉동사이클 장치에 잇어서, 상기 냉동사이클 장치는 상시 응축기(2)의 토출구측에 형성한 삼방밸브(500)와, 상기 압축기(1)의 흡입구측에 형성한 삼방밸브(510)와, 상기 양 삼방밸브(500)(510)를 연결하는 바이패스관(520)으로 구성된 바이패스 수단을 추가로 포함하는 것을 특징으로 하는 냉동사이클 장치.In the refrigeration cycle device consisting of a compressor (1), a condenser (2), a capillary tube (3) and an evaporator (4), the refrigeration cycle device is always a three-way valve (500) formed on the discharge port side of the condenser (2) And bypass means consisting of a three-way valve 510 formed at the inlet side of the compressor 1 and a bypass pipe 520 connecting the three-way valves 500 and 510. Refrigeration cycle apparatus.
KR1019930020804A 1993-10-08 1993-10-08 Refrigerating cycle apparatus KR970009803B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930020804A KR970009803B1 (en) 1993-10-08 1993-10-08 Refrigerating cycle apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930020804A KR970009803B1 (en) 1993-10-08 1993-10-08 Refrigerating cycle apparatus

Publications (2)

Publication Number Publication Date
KR950011999A KR950011999A (en) 1995-05-16
KR970009803B1 true KR970009803B1 (en) 1997-06-18

Family

ID=19365452

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930020804A KR970009803B1 (en) 1993-10-08 1993-10-08 Refrigerating cycle apparatus

Country Status (1)

Country Link
KR (1) KR970009803B1 (en)

Also Published As

Publication number Publication date
KR950011999A (en) 1995-05-16

Similar Documents

Publication Publication Date Title
US5740679A (en) Binary refrigerating apparatus
JPH03125863A (en) Refrigerating cycle unit with two stage compression
KR970009803B1 (en) Refrigerating cycle apparatus
JPH05340619A (en) Low pressure stage refrigerant system in double-pressure type freezer device
KR0154429B1 (en) Refrigerant blocking apparatus for refrigeration cycle
KR102425344B1 (en) air conditioner of high efficiency and methods for improving efficiency of air conditioner
KR100512418B1 (en) condensation system using refrigerant
KR20030043038A (en) Refrigerating cycle and control method
CN117553446B (en) Vortex technology-based heat exchange system and control method
KR0136046B1 (en) Refrigeration apparatus with two evaporators
JPH02161263A (en) Air conditioner
KR100666676B1 (en) Air-conditioner having indoor heat exchanger of multi type
KR20000033193A (en) Refrigerator with super freezer
KR100208079B1 (en) Cooling cycle
JP2833339B2 (en) Thermal storage type air conditioner
KR19980030479A (en) Expansion device of air conditioner
KR100200795B1 (en) Refrigerating cycle of air-conditioner
JPH10281567A (en) Cooler
KR200253501Y1 (en) two stage compression system of heating and cooling apparatus without outdoor equipment
KR100357091B1 (en) Heat exchange structure of refrigerating cycle for air conditioner
KR0115172Y1 (en) Over load preventor in rotary compressor
KR20040103596A (en) Heat pump system for electric-car
KR910009192Y1 (en) Air-conditioner
KR20240033336A (en) Refrigeration cycle with free cooling
KR0120735Y1 (en) Connecting pipe device for circulating cold-material of separate air-conditioner

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee