KR940005931A - Chiller - Google Patents

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Publication number
KR940005931A
KR940005931A KR1019930006460A KR930006460A KR940005931A KR 940005931 A KR940005931 A KR 940005931A KR 1019930006460 A KR1019930006460 A KR 1019930006460A KR 930006460 A KR930006460 A KR 930006460A KR 940005931 A KR940005931 A KR 940005931A
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KR
South Korea
Prior art keywords
refrigerant
temperature
cooling
storage chamber
difference
Prior art date
Application number
KR1019930006460A
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Korean (ko)
Other versions
KR0126121B1 (en
Inventor
쇼주 이와모또
유끼오 기무라
데쯔야 미야오
가쯔또시 하시구찌
가쯔야 간자끼
Original Assignee
나까자또 요시히꼬
후지 덴끼 가부시끼가이샤
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Priority claimed from JP04141849A external-priority patent/JP3036227B2/en
Application filed by 나까자또 요시히꼬, 후지 덴끼 가부시끼가이샤 filed Critical 나까자또 요시히꼬
Publication of KR940005931A publication Critical patent/KR940005931A/en
Application granted granted Critical
Publication of KR0126121B1 publication Critical patent/KR0126121B1/en

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Classifications

    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • F25B2600/2521—On-off valves controlled by pulse signals
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

본 발명은, 복수의 수납실별의 증발기에 냉매를 분배하는 분배기에 편차가 생겨, 수납실의 냉각 방식에 차이가 생겨도, 전자절환밸브의 제어에 의하여 이 냉각방식의 차이률 없애는 냉각장치를 제공한다.The present invention provides a cooling apparatus which eliminates the difference in the cooling rate by the control of the electronic switching valve even when a difference occurs in the distributor for distributing the refrigerant to the evaporator for each of the plurality of storage compartments, thereby causing a difference in the cooling scheme of the storage compartment. .

본 발명은, 가장 냉각되기 어려운 수납실의 온도와 냉각되기 쉬운 수납실의 온도와의 차가 허용온도차 (△T) 이삼 차이가 나면 냉각되기 쉬운 수납실의 증발기의 전자절환벨브를 닫고, 냉각되기 어려운 수납실의 증발기에 냉매를 집중하여 흐르게하여, 결과적으로 모든 수납실의 온도를 대략 같은 온도로 한다.According to the present invention, if the difference between the temperature of the storage compartment that is most difficult to cool and the temperature of the storage chamber that is easy to cool differs from the allowable temperature difference (ΔT) by two or more, the electronic switching valve of the evaporator of the storage compartment that is easy to be cooled is difficult to be cooled. The refrigerant is concentrated in the evaporator of the storage chamber, and as a result, the temperatures of all the storage chambers are approximately the same temperature.

다만, 상기 온도의 차가 극다으로 큰 경우, 고온쪽의 수납실의 증발기에만 언제나 냉매가 집중하여 계속흘러서, 충분히 냉각되어 있던 저온쪽의 수납실의 냉각대상물 온도가 너무 올라가버리므로 상기 제어를 중지한다.However, when the temperature difference is extremely large, the refrigerant always concentrates and continues to flow only in the evaporator of the high temperature side storage chamber, and thus the control is stopped because the temperature of the cooling object in the low temperature side storage chamber which has been sufficiently cooled rises too much. .

Description

냉각장치Chiller

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 자동판매기의 냉각장치용 분배기의 1실시예에 따른 것으로서, (a)는 측단면도, (b)는 (a)에 있어서의 X-X 단면도,(c)는 본 발명의 자동판매기의 냉각장치용 어큐물레이터(accmulater)의 1실시예에 따른 사시도,1 is a view according to one embodiment of a distributor for a cooling device of a vending machine of the present invention, (a) is a side cross-sectional view, (b) is a sectional view in section XX in (a), (c) is a vending machine of the present invention. Perspective view according to one embodiment of an accumulator for a cooling device of

제2도는 본 발명의 자동판매기의 냉각장치의 1실시예의 개략적인 구성을 설명하기 위한 것으로서, (a)는 정면방향 단면도, (b)는 측면방향 단면도,2 is a view for explaining a schematic configuration of an embodiment of a cooling apparatus of a vending machine of the present invention, (a) is a front sectional view, (b) is a lateral sectional view,

제3도는 제3도에 대응하는 자동판매기의 냉각장치의 제어회로와 함께 도시한 냉각회로도,3 is a cooling circuit diagram shown in conjunction with the control circuit of the cooling apparatus of the vending machine corresponding to FIG.

제4도는 본 발명의 자동판매기의 냉각장치의 상품수납실내의 공기온도의 제어상황의 설명도.4 is an explanatory diagram of the control situation of the air temperature in the product storage room of the cooling machine of the vending machine of the present invention.

Claims (9)

냉각대상물을 수납하는 복수의 수납실의 각각에 설치되어, 상기 냉각대상물을 냉각하기 위하여 냉매를 증발시켜 냉열을 발생하는 복수의 냉매증발기와. 냉카괸 상기 냉매를 상기 냉매증발기에 각각 녁류하는 분배기를 구비하고, 상기 분배기가 1개의 입구관과 상기 냉매증발기와 대응한 복수의 출구관을 가지는 냉각장치에 있어서, 상기 분배기내를 상기 입구관이 연통하는 입구길과, 상기 출구관이 연통하는 출구실을 칸믹음하는 오리피스판과, 상기 오리피스판의 중앙에 형성되고, 상기 입구실과, 상기 출구실을 연통하는 오리피스를 구비하고 있는 것을 특징으로 하는 냉각장치.And a plurality of refrigerant evaporators installed in each of the plurality of storage chambers for storing the cooling object and generating cooling heat by evaporating the refrigerant to cool the cooling object. A cooling device comprising a distributor for cooling the refrigerant to the refrigerant evaporator, wherein the distributor has a single inlet tube and a plurality of outlet tubes corresponding to the refrigerant evaporator. And an orifice plate that communicates with the inlet path communicating with the outlet tube, and an orifice plate for mixing the outlet chamber with which the outlet tube communicates with, and an orifice formed in the center of the orifice plate. Chiller. 제1항에 있어서, 출구실내에 설치되고, 선단이 오리피스에 근접상태로 상기 오리피스와 동심으로 대향하는 동시에 기단의 외주가 상기 출구관에 인접하는 원추체를 구비하고 있는 것을 특징으로 하는 냉각장치.The cooling apparatus according to claim 1, wherein a conical body is provided in the outlet chamber, the tip of which is concentrically opposed to the orifice in a state in proximity to the orifice, and whose outer periphery of the base is adjacent to the outlet tube. 냉각대상물을 수납하는 복수의 수납실의 각각에 설치되고, 상기 냉각대상물을 냉각하기 위하여 냉매를 증발시켜 냉열을 발생하는 복수의 냉매증발기와, 상기 냉매를 냉각하는 냉매응축기와, 상기 냉매응축기에 의해 냉각된 상기 냉매를 상기 냉매증발기에 각각 분류하는 분배기와, 상기 냉매증발기의 하류에 설치되어 미증발의 액상냉매를 저류하는 어큐뮬레이터를 구비한 냉각장치에 있어서, 상기 어큐뮬레이터에 어큐뮬레이터내에 저류된 상기 액상냉매를 기화시키는 열교환부를 설치하고. 상기 냉매웅축기로 부터의 상기 냉매를 상기 열교환부를 경유하여 상기 분배기에 공급하도록 한 것을 특징으로 하는 냉각장치.A plurality of refrigerant evaporators installed in each of the plurality of storage chambers for storing the cooling object, the refrigerant evaporating refrigerant to generate cooling heat to cool the cooling object, a refrigerant condenser for cooling the refrigerant, and a refrigerant condenser; A cooling device comprising a distributor for classifying the cooled refrigerant into the refrigerant evaporator, and an accumulator installed downstream of the refrigerant evaporator to store unevaporated liquid refrigerant, wherein the accumulator is stored in the accumulator Install a heat exchanger to vaporize. And supply the refrigerant from the refrigerant accumulator to the distributor via the heat exchange unit. 제3항에 있어서, 상기 열교환부는 어큐뮬레이터의 외주에 납땜 상태로 휘감겨지고, 내부에 냉매가 흐르는 금속관을 구비하고 있는 것을 특징으로 하는 냉각장치.4. The cooling device according to claim 3, wherein the heat exchange part is provided with a metal tube wound around the accumulator in a soldered state and having a refrigerant flowing therein. 냉각대상물을 수납하는 복수의 수납실의 각각에 설치되고. 상기 냉각대상될을 냉각하기 위하여 냉매를 증발시켜 냉열을 발생하는 복수의 냉매증발기와, 이들 냉매증발기의 하류에 설치되어 해당 냉매증발기에서 증발되어 저압으로된 상기 냉매를 가압압축하는 암축기와, 냉각된 상기 냉매를 상기 복수의 뎅매중발기에 각각 분류하는 분배기를 구비한 냉각장치에 있어서, 상기 분배기와 상기 냉매증발기와의 간에 각각 삽입되어 설치되어 해당 분배기로 부터 상기 냉매증발기와 간에 각각 삽입되어 설치되어 해당 분배기로부터 상기 냉매증발기로의 냉매흐름로를 각각 개폐하는 것이 가능한 복수의 전자절환밸브와, 상기 수납실내의 온도를 각각 연속적으로 검출하는 복수의 온도센서와, 이들 온도센서로 부터 검출신호를 받아 상기 압축기의 운전동작 및 정지작동과 동시에 상기 전자절환밸브의 개폐동작을 각각 제어하는 제어기를 구비하고 있는 것을 특징으로 하는 냉각장치.It is provided in each of the some storage chamber which accommodates a cooling object. A plurality of refrigerant evaporators for evaporating the refrigerant to cool the target object to generate cooling heat; a female condenser installed downstream of these refrigerant evaporators and evaporated from the refrigerant evaporator to a low pressure; A cooling apparatus having a distributor for classifying each of the refrigerants into the plurality of denier centrifuges, each of which is inserted into and installed between the distributor and the refrigerant evaporator, respectively, and is inserted into and installed between the refrigerant evaporator and the distributor. A plurality of electromagnetic switching valves capable of opening and closing the refrigerant flow paths from the distributor to the refrigerant evaporator respectively, a plurality of temperature sensors each continuously detecting a temperature in the storage compartment, and detection signals from these temperature sensors. The opening and closing operation of the solenoid valve Cooling device characterized in that comprising a controller for each control. 제5항에 있어서, 상기 제어기는. 상기 수납실의 온도가사전에 설정된 허용하한치 이하의 경우, 이 허용하한치이하의 온도의 상기 수납실과 대웅하는 상기 전자절환밸브를 폐지하는 것과 동시에 전테의 전자절환밸브의 폐지에 따라 압축기를 정지시키는 한편, 상기 수납실의 온도가 사전에 설정된 제1의 허웅상한치 이상인 경우, 이 제1허용상한치 이상의 온도의 상기 수납실과 대응하는 상기 전자절환밸브를 개방하는 것과 동시에 상기 압축기를 운전하는 것을 특징으로 하는 냉각장치.The method of claim 5, wherein the controller is. If the temperature of the storage chamber is lower than or equal to the preset lower limit value, the compressor is stopped in accordance with the closing of the electromagnetic switching valve of the entire frame at the same time as the closing of the electromagnetic switching valve to the storage chamber at the temperature lower than or equal to the lower limit. And operating the compressor at the same time as opening the electromagnetic switching valve corresponding to the storage chamber having a temperature above the first allowable upper limit, when the temperature of the storage chamber is equal to or greater than the first predetermined upper limit. Device. 제5항에 있어서, 상기 제어기는, 상기 압축기가운전상태에 있을때, 가장 높은 상기 수납실내의 온도와 다른 상기 수납실내의 온도와의 차가 사전에 설정된 제1 허용은도차를 상회하는 경우, 상기 다른 수납실에 대응하는 전자절환밸브를 폐지하는 한편, 이에 의해 폐지된 상기 전자절환밸브에 대응하는 상기 다른 수납실내의 온도와 상기 가장 높은 수납실내의 온도차의 차가 사전에 설정된 제2 허용온도차를 밀도는 경우, 상기 전자절환밸브의 폐지를 중지시키는 것을 특징_1.7. 하는 냉각장치.6. The controller of claim 5, wherein the controller is further configured to, when the compressor is in an operating state, when the difference between the highest temperature in the storage compartment and another temperature in the storage compartment exceeds a preset first tolerance. While closing the electromagnetic switching valve corresponding to the other storage chamber, the difference between the temperature in the other storage chamber corresponding to the closed electronic switching valve and the temperature difference in the highest storage chamber is densified in advance by the second allowable temperature difference. If, the stop of the electronic switching valve characterized in that the stop 1.7. Chiller made. 제7항에 있어서, 상기 제어기는, 가장 높은 수납실내의 온도와 다른 수납실내의 온도와의 차가 사전에 설정된 제1 허용온도차보다도 더 큰 제3허용온도차를 상회하는 경우, 상기 다른 수납실에 대응하는 전자절환벨브의 폐지를 중지시키는 것을 특징으로 하는 냉각장치.8. The controller of claim 7, wherein the controller corresponds to the other storage compartment when the difference between the temperature in the highest storage compartment and the temperature in the other storage compartment exceeds a third allowable temperature difference that is greater than a first allowable temperature difference that is set in advance. Cooling apparatus, characterized in that for stopping the abolition of the electronic switching valve. 제7항에 있어서. 상기 제어기는, 가장 놀은 수납실네의 온도와 다른 수납실내의 온도차의 차가 사전에 설정된 제1 허용온도차를 상회하는 상태에서, 상기 다른 수납실의 온도가 상기 제1 허용상한치 보다 높은 제2 허용상한치를 밑돌고, 상기 가장 높은 수납실내의 온도가 상기 제2 허용상한치를 상회하는 경우, 상기 다른 수납실에 대응하는 전자절환밸브의 폐지를 중지시키는 것을 특징으로 하는 냉각장치.The method of claim 7. The controller has a second allowable upper limit higher than the first allowable upper limit in a state where the temperature of the other storage compartment exceeds the first allowable temperature difference which is different from the temperature of the storage compartment four and the temperature difference in the other storage compartment. If the temperature in the highest storage chamber is lower than the second allowable upper limit, the closing of the electromagnetic switching valve corresponding to the other storage chamber is stopped. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR93006460A 1992-06-03 1993-04-16 Refrigerating apparatus KR0126121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP141,849/1992 1992-06-03
JP04141849A JP3036227B2 (en) 1991-10-21 1992-06-03 Vending machine cooling method

Publications (2)

Publication Number Publication Date
KR940005931A true KR940005931A (en) 1994-03-22
KR0126121B1 KR0126121B1 (en) 1997-12-18

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Application Number Title Priority Date Filing Date
KR93006460A KR0126121B1 (en) 1992-06-03 1993-04-16 Refrigerating apparatus

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