KR900005990Y1 - Refrigeration cycle - Google Patents
Refrigeration cycle Download PDFInfo
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- KR900005990Y1 KR900005990Y1 KR2019870019946U KR870019946U KR900005990Y1 KR 900005990 Y1 KR900005990 Y1 KR 900005990Y1 KR 2019870019946 U KR2019870019946 U KR 2019870019946U KR 870019946 U KR870019946 U KR 870019946U KR 900005990 Y1 KR900005990 Y1 KR 900005990Y1
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- Prior art keywords
- condenser
- compressor
- evaporator
- cooling water
- tank
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Classifications
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- 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
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 의한 냉동 사이클.1 is a refrigeration cycle according to the present invention.
제2도는 종래의 냉동 사이클.2 is a conventional refrigeration cycle.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 압축기 2 : 응축기1: compressor 2: condenser
3 : 증발기 4 : 냉각탑3: evaporator 4: cooling tower
5 : 팽창탱크 11 : 사방전자밸브5: expansion tank 11: four-way solenoid valve
12, 12' : 팽창밸브 13, 13' : 체크밸브12, 12 ': Expansion valve 13, 13': Check valve
14 : 흡입압력조절밸브 21 : 전자밸브14: suction pressure control valve 21: solenoid valve
22 : 펌프22: pump
본 고안은 냉동 사이클의 제상운전시 증발기에서 서리를 제거하고 응축되어 나오는 응축냉매액을 다시 증발시킴에 있어서, 응축 냉매액이 기존에 설치되어 있어 수냉식 응축기를 그대로 순환하면서 증발되게끔 개량하여된 냉동 사이클의 개량고안이다.The present invention is to remove the frost from the evaporator during the defrosting operation of the refrigeration cycle and to re-evaporate the condensed refrigerant liquid from the condensation, the condensed refrigerant liquid is already installed to improve the evaporation while circulating the water-cooled condenser as it is It is an improvement plan of a cycle.
잘 알다시피 냉동사이클은, 압축기에서 토출되는 냉매가 차례로 응축기, 증발기를 거치면서 냉각. 증발되고 다시 압축기로 순환하는 사이클을 이루게 된다. 이때 증발기에 형성된 횐(Fin)에는 주위의 수분이 얼어붙어 서리가 끼게 되므로 이 서리를 제거해주기 위한 제상운전을 필요로 한다.As you know, the refrigeration cycle cools down as the refrigerant discharged from the compressor goes through the condenser and evaporator in turn. The cycle is evaporated and circulated back to the compressor. At this time, the fin (Fin) formed in the evaporator is frozen because the surrounding moisture is frozen, it requires a defrost operation to remove this frost.
냉동사이클의 제상운전은 보편적으로, 히트펌프 시스템을 이용하여 압축기에서 토출되는 고온 고압가스(Hot-Gas)를 증발기로 보냄으로써 서리를 제거하게 되는데 요점은 증발기에서 서리를 제거하고 응축되어 나오는 응축냉매를 어떻게 증발시켜 압축기로 순환시키는 가에 있다.Defrosting operation of the refrigeration cycle is commonly used to remove the frost by sending the hot-gas high pressure gas (Hot-Gas) discharged from the compressor to the evaporator using a heat pump system. How to evaporate and circulate it into the compressor.
이에 대한 종래의 냉동 사이클은 제2도에 도시한 바와 같이 제상운전시("---→"로 순환방향표시) 증발기로 부터 나오는 응축 냉매액을 증발시키기 위하여 별도의 열축조탱크(T)를 사용했던 것이다.Conventional refrigeration cycle for this is a separate heat storage tank (T) to evaporate the condensed refrigerant liquid from the evaporator during the defrosting operation (indicated the circulation direction as "--- →") as shown in FIG. I used it.
즉, 압축기(C)에서 토출되는 고온 고압가스의 열과 자체에 설치된 보조히터(H)의 열을 축적하였다가 제상운전시 발생되는 응축냉매액을 열축조 탱크(T)에서 증발시키기 위한 열원으로 사용하여던 것이다.That is, the heat of the high temperature and high pressure gas discharged from the compressor (C) and the heat of the auxiliary heater (H) installed therein are accumulated and used as a heat source for evaporating the condensed refrigerant liquid generated during the defrosting operation in the thermal tank (T). I would.
이러한 종래의 열축조식 냉동사이클은 제상 운전을 위해 열축조 탱크를 별도로 설치해야 하므로 부피가 크고 코스트가 높은 단점과 아울러 열축조 탱크내의 온도를 적정수준으로 일정하게 유지시키기 위해 보조히터를 늘가동시켜야 하므로 불필요한 전력소모가 컸던 단점이 있는 것이다.In the conventional heat storage refrigeration cycle, the heat storage tank must be separately installed for the defrosting operation, and therefore, the auxiliary heater must be increased to maintain the temperature in the heat storage tank at an appropriate level. The disadvantage is that unnecessary power consumption is large.
본 고안의 목적은 냉동사이클의 재상운전 히트펌프시스템을 이용하여 고온 고압가스를 직접 증발기로 보내어 휜에 낀 서리를 제거하되 증발기에서 응축된 응축냉매액을 수냉식 응축기에서 증발시킴과 동시에 그 냉각수를 냉각시키는 냉동 사이클을 이루게 함으로써 종래와 같이 열축조탱크를 사용하지 않는 장치의 단순화를 이룩하고 에너지를 절감하는데 있다.The purpose of the present invention is to use a reheating heat pump system of a refrigerating cycle to directly send high pressure gas to the evaporator to remove frost on the tank, while condensing the condensed refrigerant liquid from the evaporator to the water-cooled condenser and simultaneously cooling the cooling water. In order to achieve a refrigeration cycle to achieve the simplification of the device that does not use the thermal control tank as in the prior art and to save energy.
본 고안 냉동사이클의 구성과 그 작용효과를 첨부된 제1도를 보면서 상세히 설명하면 다음과 같다.Looking at the configuration of the present invention the refrigerating cycle and its effect described in detail with reference to Figure 1 as follows.
먼저 구성을 살펴보면, 압축기(1)의 토출구와 응축기(2)측으로 연결되는 냉매관과 증발기(3)로부터 압축기(1)의 흡입구로 연결되는 냉매관이 서로 교차되어 그 교차점이 사방전자 밸브(11)가 설치되어 있고, 응축기(2)에서 증발기(3)로 이어지는 냉매관에는 순방향의 팽창밸브(12)와 체크밸브(13)조, 역방향의 팽창밸브(12')와 체크밸브(13')조가 병렬로 연결되어 있는 한편, 응축기(2)에서 냉각탑(4)으로 이어지는 냉각수관과 냉각탑(4)으로 이어지는 냉각수관과 냉각탑(4)에서 팽창탱크(5)로 연결되는 냉각수관 사이는 직결되어 전자밸브(21)가 설치된 구성으로서 미설명부호 14는 냉매관에 설치된 흡입압력 조절밸버, 22는 냉각수판에 설치된 펌프이다.Referring first to the configuration, the discharge port of the compressor (1) and the refrigerant pipe connected to the condenser (2) side and the refrigerant pipe connected to the inlet of the compressor (1) from the evaporator (3) intersect with each other, the intersection of the four-way solenoid valve (11) Is provided, and the refrigerant pipe leading from the condenser 2 to the evaporator 3 has a forward expansion valve 12 and a check valve 13 set, a reverse expansion valve 12 'and a check valve 13'. While the baths are connected in parallel, there is a direct connection between the cooling water pipes leading from the condenser 2 to the cooling tower 4 and the cooling water pipes leading to the cooling tower 4 and the cooling water pipes connected to the expansion tank 5 in the cooling tower 4. As a configuration in which the solenoid valve 21 is installed, reference numeral 14 denotes a suction pressure regulating valve installed in the refrigerant pipe, and 22 is a pump installed in the cooling water plate.
상기와 같은 본 고안은 종래와 같은 열축조탱크가 구성되어 있지 않으며 역시 크게 압축기(1), 응축기(2), 증발기(3)로 순환되는 냉매 순환계통과 냉각탑(4), 팽탕탱크(5) 및 응축기(2)를 순환하는 냉각수 순환계통으로 구분된다.The present invention as described above is not composed of a conventional heat storage tank, and also the refrigerant circulation system and the cooling tower (4), swelling tank (5) which is largely circulated to the compressor (1), condenser (2), evaporator (3) and It is divided into a cooling water circulation system circulating the condenser (2).
냉각수 순환계통은 팽창탱크(5)에 저장된 냉각수가 펌프(22)에 의하여 응축기(2), 냉각탑(4)으로 순환되어진다.In the cooling water circulation system, the cooling water stored in the expansion tank 5 is circulated to the condenser 2 and the cooling tower 4 by the pump 22.
한편, 냉매 순환계통은 압축기(1)로부터 토출된 냉매가 응축기(2)로 보내어져 상기 냉각수에 의해 응축되고 응축 냉매액은 순방향의 팽창밸브(12)와 체크밸브(13)조를 거쳐 증발기(3)에서 증발되며 흡입압력조절밸브(14)를 통해 압축기(1)로 순환한다. 이때 사방전자밸브(11)는 압축기(1)의 토출구와 응축기(2) 그리고, 증발기(3)에서 압축기(1)의 흡입구측으로 통하도록 관로를 선택하게 되며 냉각수 계통의 전자밸브(21)는 닫혀있는 것이다.Meanwhile, in the refrigerant circulation system, the refrigerant discharged from the compressor 1 is sent to the condenser 2 and condensed by the cooling water, and the condensed refrigerant liquid passes through the expansion valve 12 and the check valve 13 in the forward direction. It is evaporated in 3) and circulated to the compressor 1 through the suction pressure regulating valve 14. At this time, the four-way solenoid valve 11 selects a conduit for the discharge port of the compressor 1, the condenser 2, and the evaporator 3 to the inlet side of the compressor 1, and the solenoid valve 21 of the cooling water system is closed. It is.
즉, 냉동운전시("→"로 표시)는 냉매가 압축기(1)→사방전자밸브(11)→응축기(2)→순방향의 팽창밸브(12)와 체크 밸브조(13)→증발기(3)→사방전자밸브(11)→흡입 압력 조절 밸브(14)→압축기(1)로 순환되어 통상과 같이 응축기(2) 내부에서 냉각수에 의해 냉각되고, 증발기(3)에선 증발되는 것이다.That is, during the refrigeration operation (indicated by "→"), the refrigerant flows from the compressor (1) to the solenoid valve (11) to the condenser (2) to the forward expansion valve (12) and the check valve tank (13) to the evaporator (3). ) Is circulated from the solenoid valve 11 to the suction pressure regulating valve 14 to the compressor 1 and is cooled by the cooling water in the condenser 2 as usual, and evaporated in the evaporator 3.
제상운전("---→"로 표시)시에는 히트펌프시스템에 의한 압축기(1)로 부터 고온 고압가스(Hot-Gas)가 토출되면 사방전자밸브(11)가 전환되어 증발기(3)측으로 직접 보내어져 그의 휜에 낀 서리를 제거시키고, 여기서 응축된 냉매는 역방향의 팽창밸브(12')와 체크밸브(13')조를 지나 낮은 압력으로 응축기(2)측으로 유입된다.In the defrosting operation (indicated by "--- →"), when hot-high pressure gas (Hot-Gas) is discharged from the compressor 1 by the heat pump system, the solenoid valve 11 is switched to the evaporator 3 side. Direct frost is removed to remove the frost on the condensate, where the condensed refrigerant flows into the condenser 2 at low pressure through the expansion valve 12 'and the check valve 13' tank in the reverse direction.
응축기(2)로 들어온 응축 냉매액은 냉각수를 반대로 냉각시키면서 증발되게 된다. 증발된 냉매는 다시 사방전자밸브(11)와 흡입압력조절밸브(14)를 지나 압축기(1)로 순환되는 것이다. 이때 냉각수 계통의 전자밸브(21)가 열려 응축기(2)에서 응축냉매액에 의해 냉각된 냉각수는 냉각탑(4)을 거치지 않고 직접 팽창탱크(5)로 순환된다.The condensed refrigerant liquid entering the condenser 2 is evaporated while cooling the cooling water in reverse. The evaporated refrigerant is circulated back to the compressor 1 through the four-way solenoid valve 11 and the suction pressure regulating valve 14. At this time, the solenoid valve 21 of the cooling water system is opened, and the cooling water cooled by the condensation refrigerant liquid in the condenser 2 is circulated directly to the expansion tank 5 without passing through the cooling tower 4.
이와 같이 본 고안은 냉동사이클의 제상운전은 사방전자밸브(11)에 의하여 압축기(1)에 토출된 고온고압가스를 바이패스시켜 직접 증발기(3)로 보냄으로써 간단히 진행되고 뿐만 아니라 증발기의 서리를 제거하고 나온 응축냉매액을 역의 원리로 응축기(2)에서 증배시키면서 그 냉각수를 냉각시키는 2중 효과가 있는 것이다.As described above, the defrosting operation of the refrigeration cycle proceeds simply by bypassing the high temperature and high pressure gas discharged to the compressor 1 by the four-way solenoid valve 11 and directly sending it to the evaporator 3. There is a double effect of cooling the cooling water while increasing the condensed refrigerant liquid removed from the condenser (2) in the reverse principle.
따라서 제상운전시에 냉각된 냉각수를 팽창탱크(5)에 저항하여 두면 냉동운전시에 일정시간동안은 냉각탑(4)을 가동시키지 않고도 그 냉각수를 이용할 수 있으므로 냉각탑(4)의 운전률을 감소시킬 수 있는 것이다.Therefore, if the cooling water cooled during the defrosting operation is resisted to the expansion tank 5, the cooling water can be used without operating the cooling tower 4 for a predetermined time during the freezing operation, thereby reducing the operation rate of the cooling tower 4. It can be.
이상에서 설명한 바와 같이 본 고안에 의하면 보다 간단한 장치로도 제상운전이 가능하여 장치의 단순화를 이룰 수 있으며 냉각탑의 운전률을 감소시킬 수 있어 에너지를 절감할 수 있는 매우 효과적인 고안이라 하겠다.As described above, according to the present invention, the defrosting operation is possible even with a simpler device, thereby simplifying the device and reducing the operation rate of the cooling tower.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870019946U KR900005990Y1 (en) | 1987-11-18 | 1987-11-18 | Refrigeration cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870019946U KR900005990Y1 (en) | 1987-11-18 | 1987-11-18 | Refrigeration cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890011151U KR890011151U (en) | 1989-07-13 |
| KR900005990Y1 true KR900005990Y1 (en) | 1990-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870019946U KR900005990Y1 (en) | 1987-11-18 | 1987-11-18 | Refrigeration cycle |
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| KR (1) | KR900005990Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101885727B1 (en) * | 2018-02-22 | 2018-08-06 | 이기승 | Refrigeration system provided with thermobank hot gas defrost cycle using waste heat source of cooling tower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419758A (en) * | 2019-07-24 | 2019-11-08 | 河南中烟工业有限责任公司 | Cooling water recirculation system and vacuum conditioner |
-
1987
- 1987-11-18 KR KR2019870019946U patent/KR900005990Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101885727B1 (en) * | 2018-02-22 | 2018-08-06 | 이기승 | Refrigeration system provided with thermobank hot gas defrost cycle using waste heat source of cooling tower |
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| Publication number | Publication date |
|---|---|
| KR890011151U (en) | 1989-07-13 |
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