KR101316714B1 - Phase Change Material thermal storage type cold store. - Google Patents
Phase Change Material thermal storage type cold store. Download PDFInfo
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- KR101316714B1 KR101316714B1 KR1020130073725A KR20130073725A KR101316714B1 KR 101316714 B1 KR101316714 B1 KR 101316714B1 KR 1020130073725 A KR1020130073725 A KR 1020130073725A KR 20130073725 A KR20130073725 A KR 20130073725A KR 101316714 B1 KR101316714 B1 KR 101316714B1
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- cold storage
- heat exchange
- pcm
- storage tank
- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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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
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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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
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
본 발명은 아이스크림, 농,축,수산물을 냉장·냉동상태로 보관, 전시를 행하는 쇼케이스 및 김치냉장고와 같은 각종 저온저장고에 있어서 저온저장고 내부에 설치되어 있는 냉동기의 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 축냉조 내부의 가스 열교환기(증발기)에 순환 시켜 축냉조 내부의 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)을 동결 시켜 축냉 시키고, 저온저장고 적재부 내부의 공기가 순환하며 축냉 된 저온잠열 P.C.M(Phase Change Material)과 열교환을 통해 냉각 될 수 있도록 공기 흡입구 와 공기 배출구를 연결되게 설치함에 있어서, 공기 배출구에 설치된 송풍기를 가동하여 축냉조 하부에 부착 설치되는 열교환 면적을 높이기 위해 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)내부로 흡입된 공기가 통과 하며 냉각되어 공기 배출구를 통해 저온저장고 적재부 내부로 배출되는 것을 특징으로 한 P.C.M 축냉식 저온저장고에 관한 것이다.
[색인어]
저온저장고, 냉동기, 저온잠열 P.C.M, 브라인(Brine)순환 열교환 코일(Coil), 송풍기The present invention provides a refrigerant gas discharged from an expansion valve of a refrigerator installed inside a cold storage in various cold storages such as showcases and kimchi refrigerators that store and display ice cream, agricultural, livestock, and marine products in a refrigerated and frozen state. ) Is circulated to the gas heat exchanger (evaporator) inside the storage tank connected to the freezer to freeze the low temperature latent heat PCM (Phase Change Material), which freezes at the specified temperature inside the storage tank, to freeze and cool the air inside the cold storage compartment. Heat exchange area installed at the bottom of the cold storage tank by operating a blower installed at the air outlet to connect the air inlet and the air outlet to be cooled by heat exchange with the low temperature latent heat PCM (Phase Change Material) cooled by circulation. The air sucked into the brine circulation heat exchange coil consisting of heating fins And cooled relates to a PCM chuknaengsik low temperature reservoir being discharged through the air discharge port into the low-temperature reservoir mounting portion.
[Index]
Cold Storage, Freezer, Low Temperature Latent PCM, Brine Circulation Heat Exchange Coil, Blower
Description
본 발명은 저온저장고 적재부 내부 공기가 저온저장고 내부에 설치되어 있는 축냉조에 저장된 저온잠열 P.C.M(Phase Change Material)에 축냉 되어있는 저온 열에너지와의 열교환을 통해 적재부 내부의 적정온도를 유지시키는 P.C.M 축냉식 저온저장고에 관한 것으로, 보다 상세하게는 전기요금이 저렴한 심야전력을 사용하여 저온저장고 내부에 설치되어 있는 냉동기의 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 축냉조 내부의 가스 열교환기에 순환 시켜, 축냉조에 저장된 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)을 동결 시켜 축냉 시키고, 주간에 냉동기 가동 없이 저온저장고 내부의 공기가 순환하며 축냉 된 저온잠열 P.C.M(Phase Change Material)과 열교환을 통해 냉각 될 수 있도록 공기 흡입구 와 공기 배출구를 연결되게 설치함에 있어서, 공기 배출구에 설치된 송풍기를 가동하여 축냉조 하부에 부착 설치되는 열교환 면적을 높이기 위해 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)내부로 흡입된 공기가 통과 하며 냉각되어 공기 배출구를 통해 저온저장고 적재부 내부로 배출됨으로써 적재부 내부의 적정온도를 유지시키는, 전기요금이 절약되고, 전력 피크타임 시간대에 냉동기가 가동되지 않음으로 인한 수요전력 관리에 도움이 되는 P.C.M 축냉식 저온저장고에 관한 것이다.The present invention provides a PCM that maintains an appropriate temperature inside a load compartment through heat exchange with low temperature heat energy stored in a low temperature latent heat PCM (Phase Change Material) stored in a cold storage tank in which the air inside the cold store stack is installed inside the cold store. More specifically, it relates to a low temperature storage tank for cold storage. More specifically, a gas heat exchanger inside a cold storage tank connected to a refrigerator is used to transfer refrigerant gas (Gas) discharged from the expansion valve of the refrigerator installed inside the cold storage using a low-cost electric power having a low electric charge. By circulating, it freezes by cooling the low temperature latent heat PCM (Phase Change Material) where the freezing starts at the designated temperature stored in the cold storage tank, and circulates the air inside the cold storage without the operation of the freezer during the day. Air inlet and air outlet so that they can be cooled by heat exchange. In order to operate the blower installed in the air outlet port to increase the heat exchange area attached to the lower part of the cold storage tank, the air sucked through the brine circulation heat exchange coil consisting of heat transfer fins is cooled and cooled. Through the low temperature storage compartment, the PCM storage cold storage system is used to maintain the proper temperature inside the loading unit, to save electricity charges, and to manage demand power by not operating the freezer during peak hours. will be.
일반적으로 저온저장고의 적재부 내부를 적정온도로 유지하기 위해서는 저온저장고 내부에 설치된 냉동기를 가동시켜 적재부 내부 공기를 송풍기를 사용하여 증발기에 통과시켜 열교환되어 냉각된 공기를 배출하여 적정온도를 유지하게 된다.In general, in order to maintain the inside of the cold storage compartment at an appropriate temperature, a refrigerator installed inside the cold storage is operated so that the air inside the cold storage compartment is passed through an evaporator using a blower to exhaust heat cooled by heat exchange to maintain the proper temperature. do.
그러나, 일반적인 저온저장고의 적재부 내부를 적정온도로 유지하기 위해서는 하루 24시간 냉동기의 콤프레샤(압축기)가 ON/OFF를 반복하며 가동되어야 됨으로써 많은 전기요금 발생과 피크타임 전력량을 줄이지 못하는 단점이 있다.However, in order to maintain the inside of the storage unit of a general low temperature storage at an appropriate temperature, the compressor (compressor) of the freezer 24 hours a day to operate repeatedly, there is a disadvantage that does not reduce the generation of a lot of electricity charges and peak time power.
따라서, 본 발명은 저온저장고의 적재부 내부를 적정온도로 유지함에 있어 하루 24시간 냉동기의 콤프레샤(압축기)가 ON/OFF를 반복하며 가동되어야 되는 문제점을 해결하는 구조를 제공하는데 있다.Accordingly, the present invention is to provide a structure to solve the problem that the compressor (compressor) of the freezer for 24 hours a day to repeatedly operate the ON / OFF in maintaining the inside of the loading section of the cold storage.
상기와 같은 본 발명의 목적은, 저온저장고의 적재부 내부를 아이스크림, 농산물, 축산물, 수산물 등 신선식품류를 보관하기 위해 적정온도로 유지함에 있어 하루 24시간 냉동기의 콤프레샤(압축기)가 ON/OFF를 반복하며 가동되어야만 되는 것을 전기요금이 저렴한 심야전력을 사용하여 저온저장고 내부에 설치되어 있는 냉동기를 가동하여 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 축냉조 내부의 가스 열교환기에 순환 시켜, 축냉조 내부의 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)을 동결 시켜 축냉 시키고, 주간에 냉동기 가동 없이 저온저장고 적재부 내부의 공기가 순환하며 축냉 된 저온잠열 P.C.M(Phase Change Material)과 열교환을 통해 냉각 될 수 있도록 공기 흡입구 와 공기 배출구를 연결되게 설치함에 있어서, 공기 배출구에 설치된 송풍기를 가동하여 축냉조 하부에 부착 설치되는 열교환 면적을 높이기 위해 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)내부로 흡입된 공기가 통과 하며 냉각되어 공기 배출구를 통해 저온저장고 적재부 내부로 배출됨으로써 적재부 내부의 적정온도를 유지시키는데 필요한 전기요금이 절약되고, 전력 피크타임 시간대에 냉동기가 가동되지 않음으로 인한 수요전력 관리에 도움이 되는 매우 유용한 발명인 것이다.An object of the present invention as described above, the compressor (compressor) of the freezer 24 hours a day to keep the inside of the cold storage unit at the appropriate temperature for storing fresh food such as ice cream, agricultural products, livestock products, marine products It must be operated repeatedly, using a late night electric power with low electric charges to operate the refrigerator installed inside the cold storage, and circulate refrigerant gas (Gas) discharged from the expansion valve to the gas heat exchanger inside the storage tank connected to the freezer. It freezes by cooling the low temperature latent heat PCM (Phase Change Material) where the freezing starts at the designated temperature inside the cold storage tank, and by circulating the air inside the cold storage compartment without the operation of the freezer during the day, the cold latent heat PCM (Phase Change Material) In connecting the air inlet and the air outlet so that they can be cooled by heat exchange with In order to increase the heat exchange area that is installed at the bottom of the cold storage tank by operating the blower installed at the outlet, the air sucked through the Brine circulation heat exchange coil consisting of heat transfer fins is cooled and loaded into the cold storage through the air outlet. By discharging to the inside of the unit to save the electric charge required to maintain the proper temperature inside the loading unit, it is a very useful invention that helps to manage the demand power by not operating the refrigerator during peak power time.
상기와 같은 본 발명의 구성에 의하면, 전기요금이 저렴한 심야전력을 사용하여 냉동기를 가동하여 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 축냉조 내부의 가스 열교환기에 순환 시켜, 축냉조에 저장된 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)을 동결 시켜 저온열에너지를 저장하고, 주간에 냉동기를 가동하지 않고 송풍기만을 가동시켜 적재부 내부의 공기와 P.C.M에 저장된 저온열에너지와의 열교환을 통해 냉각된 공기를 공기흡입구와 공기배출구를 통해 적재부 내부로 순환 시켜 적재부 내부의 적정 온도를 유지시킬 수 있게 되어, 전기요금이 절약되고, 전력 피크타임 시간에 냉동기가 가동되지 않아 수요전력 관리에 효과가 있는 매우 유용한 발명인 것이다.According to the configuration of the present invention as described above, by operating the refrigerator using a low-cost electric power inexpensive electric charge to circulate the refrigerant gas (Gas) discharged from the expansion valve to the gas heat exchanger inside the storage tank connected to the refrigerator, The low temperature latent heat PCM (Phase Change Material) freezes at the specified stored temperature to save low temperature heat energy, and during the daytime, only the blower is operated without operating the freezer to exchange heat between cold air stored in the PCM and the low temperature heat energy stored in the PCM. The air cooled through the air inlet and the air outlet can be circulated to the inside of the loading section to maintain the proper temperature inside the loading section. Electricity is saved, and the refrigerator does not operate during peak time periods. It is a very useful invention that is effective in management.
도 1 은 본 발명에 따른 P.C.M 축냉식 저온저장고의 전체 사시도 이다.
도 2 은 본 발명에 따른 P.C.M 축냉식 저온저장고의 축냉시스템의 구성 형태를 도시한 종단면도 이다.
도 3 은 본 발명에 따른 적재부 내부의 공기가 열교환 되며 순환하는 상태를 나타내는 측단면도 이다.
도 4 은 본 발명에 따른 축냉조의 형태를 나타내는 사시도 이다.
도 5 은 본 발명에 따른 축냉조와 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)의 결합상태를 나타내는 조립도 이다.
＜도면의 주요부분에 대한 부호의 설명＞
1. 저온저장고 2. 적재부
3. 냉동기 4. 가스열교환기
5. 축냉조 6. P.C.M(Phase Change Material)
7. 히터코일을 구비한 전열핀으로 구성된 열교환 코일(Coil)
8. 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)
9. 브라인(Brine) 순환펌프(Pump) 10. 송풍기
11. 배출구멍(hole)1 is an overall perspective view of a PCM cold storage cold storage according to the present invention.
Figure 2 is a longitudinal cross-sectional view showing the configuration of the cold storage system of the PCM cold storage cold storage system according to the present invention.
Figure 3 is a side cross-sectional view showing a state in which the air inside the mounting portion is heat-exchanged and circulated according to the present invention.
Figure 4 is a perspective view showing the form of the cold storage tank according to the present invention.
Figure 5 is an assembly diagram showing a coupling state of the brine (Brine) circulating heat exchange coil (Coil) consisting of a cold storage tank and a heat transfer fin according to the present invention.
Description of the Related Art
1.
3.
5.
7. Heat exchanger coil consisting of heating fins with heater coils
8. Brine circulating heat exchange coil consisting of heating fins
9. Brine
11. Outlet hole
이하, 본 발명의 바람직한 실시 예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1 은 본 발명에 따른 P.C.M 축냉식 저온저장고의 전체 사시도 이다.1 is an overall perspective view of a P.C.M cold storage cold storage according to the present invention.
도 2 은 본 발명에 따른 P.C.M 축냉식 저온저장고의 축냉시스템의 구성 형태를 도시한 종단면도 이다.Figure 2 is a longitudinal cross-sectional view showing the configuration of the cold storage system of the P.C.M cold storage cold storage system according to the present invention.
즉, 본 발명은 전기요금이 저렴한 심야전력을 사용하여 아이스크림, 농,축,수산물 등 냉장·냉동상태로 보관, 전시를 행하는 쇼케이스 및 김치냉장고와 같은 각종 저온저장고 내부에 설치되어 있는 냉동기를 가동하여 냉동기의 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 단열 처리된 축냉조 내부의 가스 열교환기에 순환시켜, 축냉조 내부에 저장된 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)과 열교환을 통해 동결 시켜 축냉 시키고, 주간에 냉동기 가동 없이 저온저장고 적재부 내부의 공기가 순환하며 축냉 된 저온잠열 P.C.M(Phase Change Material)과 열교환을 통해 적정 온도로 냉각 될 수 있도록 공기 흡입구 와 공기 배출구를 두어 서로 연결되게 공기순환 통로를 설치함에 있어서, 공기 배출구에 설치된 송풍기를 가동하여 공기 흡입구로 들어온 적재부 내부 공기가 흡입구에 설치된 제상용 히터코일을 구비한 전열핀으로 구성된 열교환 코일 내부를 통과하며 1차 열교환을 통해 냉각되며 수분이 제거된 후, 공기순환 통로를 따라 축냉조 하부에 고정 부착 설치된, 축냉조 측면부에 브라켓(Bracket)을 사용하여 고정된 브라인(Brine) 순환펌프(Pump)에 의해 축냉조 내부의 저온잠열 P.C.M(Phase Change Material)과 열교환 되어 냉각된 브라인(Brine)이 순환하는 열교환 면적을 높이기 위한 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)내부로 통과 하며, 축냉조 하부의 브라인(Brine)순환 열교환 코일(Coil)과 부착되어 맞대고 있는 단열처리 되지 않은 축냉조 하부 3면(좌측명,우측면,상부)에서 자연 방냉 되는 저온열에너지 및 냉각된 브라인(Brine)과 접촉되어 전열핀으로 전도된 저온열에너지와 2차,3차 열교환을 통해 멀티(Multi) 냉각되어 공기 배출구를 통해 저온저장고 내부 적재부로 배출 되어 저온저장고 적재부 내부의 적정온도를 유지 할 수 있게 되는 것으로서, 일반 저온저장고에 비하여 전기요금이 절약되고, 전력 피크타임 시간에 냉동기가 가동되지 않아 수요전력 관리에 효과가 있는 것이다.That is, the present invention operates a freezer installed in various low-temperature stores such as showcases and kimchi refrigerators, which store and display ice cream, agricultural, livestock, and aquatic products in a refrigerated and frozen state using low-power electricity at a low electric charge. The refrigerant gas (Gas) discharged from the expansion valve of the freezer is circulated to the gas heat exchanger inside the insulated storage tank connected to the freezer, and the low-temperature latent heat PCM (Phase Change Material) that starts to freeze at a specified temperature stored in the storage tank Freeze through heat exchange to accumulate, and in the daytime, the air inlet and the air outlet can be cooled so that the air inside the cold store loading section circulates without operating the freezer and can be cooled to a proper temperature through heat exchange with the cold stored latent heat PCM (Phase Change Material). In order to install the air circulation passages to be connected to each other, operate the blower installed at the air outlet port. The air inside the loading section that enters the air inlet passes through the heat exchange coil consisting of the heat transfer fin with the defrost heater coil installed in the inlet, cooled by the first heat exchange, and after the water is removed, the storage tank along the air circulation passage. Brine cooled by heat-exchanging with low temperature latent heat PCM (Phase Change Material) inside the cold storage tank by using a brine circulation pump fixed to the side of the cold storage tank by using a bracket. ) Passes through the brine circulation heat exchange coil (Crine) consisting of the heating fins to increase the heat exchange area circulating, and is not insulated by being attached to the brine circulation heat exchange coil (Coil) at the bottom of the cold storage tank. Low temperature heat energy naturally cooled in the lower three sides (left side, right side, upper side) of the cold storage tank and low temperature heat conducted to the heating fins by contacting the cooled brine. It is multi-cooled through energy and secondary and tertiary heat exchange, and it is discharged through the air outlet into the cold storage compartment to maintain the proper temperature inside the cold storage compartment. This saves power and the chiller does not operate during peak power hours, which is effective in managing demand power.
Claims (2)
저온저장고 내부에 설치되어 있는 냉동기를 가동하여 냉동기의 팽창밸브에서 배출되는 냉매가스(Gas)를 냉동기와 연결된 단열 처리된 축냉조 내부의 가스 열교환기에 순환 시켜, 축냉조 내부에 저장된 지정된 온도에 동결이 시작 되는 저온 잠열 P.C.M(Phase Change Material)과 열교환을 통해 동결 시켜 저온열에너지를 저장 시키후;
주간시간에 냉동기를 가동하지 않고 저온저장고 적재부 내부의 적정온도를 유지하기 위하여 적재부 내부 공기가 순환하며 축냉 된 저온잠열 P.C.M(Phase Change Material)과 열교환을 통해 적정 온도로 냉각 될 수 있도록 공기 흡입구 와 공기 배출구를 두어 서로 연결되게 공기순환 통로를 설치함에 있어서;
공기 배출구에 설치된 송풍기를 가동하여 공기 흡입구로 들어온 적재부 내부 공기가 흡입구에 설치된 제상용 히터코일을 구비한 전열핀으로 구성된 열교환 코일 내부를 통과하며 1차 열교환을 통해 냉각되며 수분이 제거된 후;
공기순환 통로를 따라 축냉조 하부에 고정 부착 설치된, 축냉조 측면부에 브라켓(Bracket)을 사용하여 고정된 브라인(Brine) 순환펌프(Pump)에 의하여;
축냉조 내부의 저온잠열 P.C.M(Phase Change Material)과 열교환 되어 냉각된 브라인(Brine)이 순환하는 열교환 면적을 높이기 위한 전열핀으로 구성된 브라인(Brine)순환 열교환 코일(Coil)내부로 통과 하며;
축냉조 하부의 브라인(Brine)순환 열교환 코일(Coil)과 부착되어 맞대고 있는 단열처리 되지 않은 축냉조 하부 3면(좌측명,우측면,상부)에서 자연 방냉 되는 저온열에너지 및 냉각된 브라인(Brine)과 접촉되어 전열핀으로 전도된 저온열에너지와 2차,3차 열교환을 통해 멀티(Multi) 냉각되어 공기 배출구를 통해 저온저장고 내부 적재부로 배출 되어 주간시간에 냉동기 가동 없이 저온저장고 적재부 내부의 적정온도를 유지할 수 있어 전기요금 절약 및 피크타임 수요전력 관리에 도움이 되는 것을 특징으로 하는 P.C.M 축냉식 저온저장고.In various low-temperature storages such as showcases and kimchi refrigerators, which are stored and displayed in a refrigerated and frozen state such as ice cream, agricultural products, livestock products, and marine products by using midnight electric power with low electric charges;
By operating the refrigerator installed inside the cold storage, the refrigerant gas (Gas) discharged from the expansion valve of the refrigerator is circulated to the gas heat exchanger inside the insulated storage tank connected to the refrigerator, and the freezing is performed at the designated temperature stored in the storage tank. After freezing through heat exchange with low temperature latent heat PCM (Phase Change Material) to start low temperature heat energy;
The air inlet is circulated to maintain the proper temperature inside the cold storage compartment without running the freezer during the daytime, and the air inlet can be cooled to the proper temperature through heat exchange with cold-cooled latent heat PCM (Phase Change Material). In installing the air circulation passage to be connected to each other by having an air outlet;
After operating the blower installed in the air outlet port, the air inside the loading section enters the air inlet passes through the heat exchange coil consisting of a heat transfer fin with a defrost heater coil installed in the inlet, cooled by the first heat exchange and water is removed;
By a brine circulation pump (Pump) fixed by using a bracket (Bracket) on the side of the cold storage tank fixedly attached to the lower portion of the cold storage tank along the air circulation passage;
It passes through the brine circulation heat exchange coil (Crine) consisting of the heat transfer fin for increasing the heat exchange area circulating the cold brine cooled by heat exchange with the low temperature latent heat PCM (Phase Change Material) in the cold storage tank;
Low temperature heat energy and cooled brine which naturally cools on the lower three sides (left side, right side, and upper side) of the non-insulated storage cold storage tank attached to the brine circulation heat exchange coil in the lower part of the cold storage tank. Low temperature heat energy contacted and conducted by heat transfer fins, and multi-cooled through secondary and tertiary heat exchange and discharged into the cold storage compartment through the air outlet. PCM low-temperature cold storage, characterized in that it can be maintained to help save electricity bills and manage peak power demand.
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