KR0137580Y1 - Cooling apparatus of liquid refrigerator absorptive airconditioner - Google Patents

Cooling apparatus of liquid refrigerator absorptive airconditioner Download PDF

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Publication number
KR0137580Y1
KR0137580Y1 KR2019930008040U KR930008040U KR0137580Y1 KR 0137580 Y1 KR0137580 Y1 KR 0137580Y1 KR 2019930008040 U KR2019930008040 U KR 2019930008040U KR 930008040 U KR930008040 U KR 930008040U KR 0137580 Y1 KR0137580 Y1 KR 0137580Y1
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South Korea
Prior art keywords
temperature regenerator
liquid refrigerant
refrigerant
low temperature
condenser
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KR2019930008040U
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Korean (ko)
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KR940027282U (en
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황동곤
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이헌조
엘지전자주식회사
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    • 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
    • F25B15/00Sorption machines, plant, or systems, operating continuously, e.g. absorption type
    • F25B15/02Sorption machines, plant, or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/025Liquid transfer means
    • 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
    • F25B2309/00Gas cycle refrigeration machines
    • F25B2309/003Gas cycle refrigeration machines characterised by construction or composition of the regenerator
    • 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
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • F25B39/026Evaporators specially adapted for sorption type systems
    • 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
    • F25B39/00Evaporators; Condensers
    • F25B39/04Condensers

Abstract

본 고안은 흡수식 냉,난방기에 관한 것으로 특히 흡수기에서 유입되는 희용액과 고온재생기에서 발생된 과열증기를 이용하여 용액을 재생시키는 저온재생기와, 상기 저온재생기에서 발생된 냉매증기를 응축하여 액냉매를 만들고 이 액냉매를 증발기로 보내는 응축기와, 상기 저온재생기에서 응축기로 가는 액냉매관에 열교환기를 설치하여 증발기의 포화 증기압을 낮춤으로서 냉매 증발이 원활하도록 한 흡수식 냉난방기의 액냉매 냉각장치이다.The present invention relates to an absorption type cooling and heating unit, and a low temperature regenerator for regenerating a solution by using a rare solution introduced from an absorber and a superheated steam generated in a high temperature regenerator, and a refrigerant refrigerant condensed in the low temperature regenerator. The liquid refrigerant cooling system of the absorption type air conditioner which makes the refrigerant evaporate smoothly by lowering the saturated vapor pressure of the evaporator by installing the heat exchanger in the condenser which sends this liquid refrigerant to the evaporator, and the liquid refrigerant pipe from the low temperature regenerator to the condenser.

Description

흡수식 냉,난방기의 액냉매 냉각장치Liquid refrigerant cooling device of absorption cooling and heating unit
제1도는 종래 흡수식 냉,난방기의 구성도.1 is a block diagram of a conventional absorption type air conditioner and heater.
제2도는 본 고안의 액냉매 냉각장치가 설치된 상태를 나타낸 흡수식 냉,난방기의 구성도.2 is a block diagram of an absorption type air conditioner and a heater showing a state where a liquid refrigerant cooling device of the present invention is installed.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
12 : 저온재생기 18 : 응축기12: low temperature regenerator 18: condenser
20 : 열교환기 21 : 액냉매관20: heat exchanger 21: liquid refrigerant pipe
본 고안은 흡수식 냉,난방기에 관한 것으로 특히, 저온재생기에서 응축기로 가는 액냉매관에 열교환기를 설치하여 증발기의 포화 증기압을 낮춤으로서 냉매 증발이 원활하도록 한 흡수식 냉,난방기의 액냉매 냉각장치에 관한 것이다.The present invention relates to an absorption cooling and heating device, and more particularly, to a liquid refrigerant cooling device of an absorption cooling and heating device in which a refrigerant is smoothly evaporated by lowering the saturated vapor pressure of an evaporator by installing a heat exchanger in a liquid refrigerant pipe going from a low temperature regenerator to a condenser. will be.
종래의 흡수식 냉,난방기는 냉매(물)가 증발하면서 냉수의 열을 빼앗아 원하는 냉동 효과를 얻는 구조로 이는 제1도에 도시되는 바와 같이 흡수기(6)에서 유입되는 희용액을 가열하여 흡수액을 비등시켜 냉매증기를 발생키는 고온재생기(1)와, 상기 고온재생기(1)에서 발생된 과열증기를 이용하여 용액을 재생시키는 저온재생기(2)와, 상기 고온재생기(1)에서 나오는 농용액과 흡수기(6) 출구에서 나오는 희용액을 열교환하는 저온열교환기(4)와, 상기 저온열교환기(4)에서 오는 희용액과 고온재생기(1)에서 나오는 농용액을 열교환시키는 고온열교환기(3)와, 상기 저온재생기(2)에서 발생하는 냉매증기를 응축하여 액냉매를 만드는 응축기(8)와, 상기 응축기(8)로부터 액냉매를 받아 냉매를 증발시키는 증발기(5)로 구성되어 있다.Conventional absorption cooling and heating system is a structure in which the refrigerant (water) is evaporated to take heat of cold water to obtain a desired refrigeration effect, which boils the absorption liquid by heating the rare solution flowing from the absorber (6) as shown in FIG. A high temperature regenerator (1) for generating a refrigerant vapor, a low temperature regenerator (2) for regenerating a solution using superheated steam generated in the high temperature regenerator (1), and a concentrated solution from the high temperature regenerator (1); Low temperature heat exchanger (4) for heat-exchanging the rare solution from the outlet of the absorber (6), and high temperature heat exchanger (3) for exchanging the rare solution from the low-temperature heat exchanger (4) and the agricultural solution from the high temperature regenerator (1). And a condenser 8 for condensing the refrigerant vapor generated in the low temperature regenerator 2 to form a liquid refrigerant, and an evaporator 5 for receiving the liquid refrigerant from the condenser 8 to evaporate the refrigerant.
도면중 미설명 부호7은 냉각 공기를 도입하기 위한 냉각팬이고, 9는 냉매 순환펌프이다.In the figure, reference numeral 7 denotes a cooling fan for introducing cooling air, and 9 denotes a refrigerant circulation pump.
상기와 같은 종래의 흡수식 냉,난방기에서 증발된 냉매 증기는 흡수기(6)로 이동하여 상기 흡수기(6) 상단에서 분사되는 흡수액과 혼합되어 낙하되면서 바로 응축을 하게된다.The refrigerant vapor evaporated in the conventional absorption type air conditioner and the like is moved to the absorber 6 and mixed with the absorbent liquid injected from the upper end of the absorber 6 to be immediately condensed.
상기 흡수기(6)의 상단에서 분사되는 흡수액은 고온재생기(1)로부터 유입되는데 이는 농용액으로 흡수능력이 우수하다.The absorbent liquid injected from the upper end of the absorber 6 is introduced from the high temperature regenerator 1, which is excellent in absorbent capacity as a concentrated solution.
그러나 냉매증기를 흡수함에 따라 농도가 묽어져 희용액이 되어 흡수능력이 크게 저하되고, 이에 따라 냉매증기를 원활히 흡수 할수 없게되어 고온재생기(1)로 보내진다. 그러면 상기 고온재생기(1)에서는 가스의 연소열 또는 증기를 이용하여 용액을 가열하여 냉매증기를 발생시켜 용액의 농도를 진하게 한다.However, as the refrigerant vapor is absorbed, the concentration becomes thin and becomes a rare solution, so that the absorption capacity is greatly reduced. Accordingly, the refrigerant vapor cannot be absorbed smoothly and is sent to the high temperature regenerator (1). Then, the high temperature regenerator 1 heats the solution using the combustion heat or steam of the gas to generate refrigerant vapor to increase the concentration of the solution.
이때 고온재생기(1)에서 발생되는 냉매과열은 저온재생기(2)로 이동되어 저온열교환기(4)에서 유입되는 희용액을 가열하며, 과열증기는 용액을 가열함에 따라 온도가 강하하여 액냉매로 상변화를 하게된다.At this time, the refrigerant overheat generated in the high temperature regenerator (1) is transferred to the low temperature regenerator (2) to heat the rare solution flowing from the low temperature heat exchanger (4), and the superheated steam decreases in temperature as it heats the solution to the liquid refrigerant. Phase change is made.
한편, 저온재생기(2)에서 발생된 희용액은 가열증기의 전열에 의하여 용액이 가열되고, 용액이 비응함에 따라 냉매증기가 발생되어 증기는 응축기(8)에서 응축되며, 용액은 증기가 발생함에 따라 고농도의 용액으로 재생된다.On the other hand, the rare solution generated in the low temperature regenerator (2) is the solution is heated by the heat transfer of the heating steam, the refrigerant vapor is generated as the solution is non-condensing steam is condensed in the condenser (8), the solution is steam Therefore, it is regenerated into a high concentration solution.
상기 저온재생기(2)에서 응축된 액냉매는 응축기(8)로 보내어져 상기 응축기(8)에서 응축된 액냉매와 혼합되고 혼합된 액냉매는 증발기(5)로 이동되어 상단에서 분사됨과 동시에 증발되면서 냉동 효과를 이룬다.The liquid refrigerant condensed in the low temperature regenerator (2) is sent to the condenser (8), mixed with the liquid refrigerant condensed in the condenser (8), and the mixed liquid refrigerant is moved to the evaporator (5) and sprayed at the top and evaporated at the same time. While achieving a freezing effect.
그러나 상기와 같은 종래의 흡수식 냉,난방기는 저온재생기(2)에서 응축기(8)로 이동하는 액냉매의 온도가 매우 높아(이중 효율인 경우 95℃정도) 응축기(8)에서 응축된 액냉매(약 45℃정도)와 합쳐져도 온도는 상당히 고온이며, 저온재생기(2)의 액냉매 유량과 응축기(8)의 액냉매 유량은 대략 4:6 비율이다. 따라서, 고온의 액냉매가 증발기(5)로 유입됨에 따라 증발기(5)의 포화 증기압이 상승 하게되고 원하는 증발온도 까지 열용량을 제거(헌열제거) 하여야 하기 때문에 증발잠열의 일부가 헌열제거에 사용된다. 이에 따라 자연히 냉방효과가 감소되어 성능이 저하되는 문제점이 있었다.However, in the conventional absorption type cooling and heating apparatus, the temperature of the liquid refrigerant moving from the low temperature regenerator 2 to the condenser 8 is very high (about 95 ° C. in the case of double efficiency), and the liquid refrigerant condensed in the condenser 8 ( Combined with the temperature of about 45 ° C.), the temperature is quite high, and the liquid refrigerant flow rate of the low temperature regenerator 2 and the liquid refrigerant flow rate of the condenser 8 are approximately 4: 6. Therefore, a portion of the latent heat of evaporation is used to remove the heat, since the saturated vapor pressure of the evaporator 5 increases as the high temperature liquid refrigerant flows into the evaporator 5 and the heat capacity must be removed (destroyed) until the desired evaporation temperature. . Accordingly, the cooling effect is naturally reduced, there is a problem that the performance is reduced.
따라서 본 고안의 목적은 상기와 같은 종래의 문제점을 해소하기 위하여 안출한 것으로, 저온재생기에서 응축기로 가는 액냉매관에 열교환기를 설치하여 증발기의 포화 증기압을 낮추고 냉매 증발이 원활하도록 한 흡수식 냉난방기의 액냉매 냉각장치를 제공하는데 있다.Accordingly, an object of the present invention is to solve the above-mentioned problems, and to install a heat exchanger in the liquid refrigerant pipe going from the low temperature regenerator to the condenser, thereby lowering the saturated vapor pressure of the evaporator and allowing the refrigerant to evaporate smoothly. A refrigerant cooling device is provided.
이하 첨부 도면에 의거하여 본 고안의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention will be described in detail with reference to the accompanying drawings.
본 고안도 흡수기(16)에서 유입되는 희용액을 가열하여 흡수액을 비등시켜 냉매증기를 발생키는 고온재생기(11)와, 상기 고온재생기(11)에서 발생된 과열증기를 이용하여 용액을 재생시키는 저온재생기(12)와, 상기 고온재생기(11)에서 나오는 농용액과 흡수기(16) 출구에서 나오는 희용액을 열교환하는 저온열교환기(14)와, 상기 저온열교환기(14)에서 오는 희용액과 고온재생기(11)에서 나오는 농용액을 열교환시키는 고온열교환기(13)와, 상기 저온재생기(12)에서 발생하는 냉매증기를 응축하여 액냉매를 만드는 응축기(18)와, 상기 응축기(18)로부터 액냉매를 받아 냉매를 증발시키는 증발기(15)로 구성되는 것은 종래의 흡수식 냉,난방기와 같다.The present invention also regenerates the solution using a high temperature regenerator 11 for heating the rare solution flowing from the absorber 16 to boil the absorbing liquid to generate refrigerant vapor, and superheated steam generated in the high temperature regenerator 11. A low temperature regenerator 12, a low temperature heat exchanger 14 for heat-exchanging the concentrated solution from the high temperature regenerator 11 and the rare solution exiting the absorber 16 outlet, and a rare solution from the low temperature heat exchanger 14; A high temperature heat exchanger (13) for heat-exchanging the concentrated solution from the high temperature regenerator (11), a condenser (18) for condensing refrigerant vapor generated in the low temperature regenerator (12) to form a liquid refrigerant, and from the condenser (18) The evaporator 15 that receives the liquid refrigerant and evaporates the refrigerant is the same as a conventional absorption type cooling and heating device.
여기에서, 본 고안은 증발기(15)의 냉매증발이 원활하도록 하기 위하여 상기 저온재생기(12)에서 응축기(18)로 연결되는 액냉매관(21)에 설치되며, 증발기(15)에서 나오는 냉수의 일부를 저온재생기(12)에서 나온 액냉매와 열교환시키어 냉각된 액냉매를 응축기(18)로 보내는 열교환기(20)를 설치함을 그 기술적 구성상을 기본 특징으로 한다.Here, the present invention is installed in the liquid refrigerant pipe 21 is connected to the condenser 18 in the low temperature regenerator 12 in order to facilitate the refrigerant evaporation of the evaporator 15, the cold water from the evaporator 15 The technical feature of the technical configuration is that a heat exchanger 20 is installed in which a part of the heat exchanger from the low temperature regenerator 12 exchanges the cooled liquid refrigerant to the condenser 18.
미설명 부호 17은 냉각 공기를 도입하기 위한 냉각팬이고, 19는 냉매 순환펌프 이며, 22는 냉각수배관이다.Reference numeral 17 is a cooling fan for introducing cooling air, 19 is a refrigerant circulation pump, 22 is a cooling water pipe.
이와 같이 구성된 본 고안은 흡수기(16)에서 유입되는 희용액과 고온재생기(11)에서 발생된 과열증기를 이용하여 용액을 재생시키는 저온재생기(12)와, 상기 저온재생기(12)에서 발생된 냉매증기를 응축하여 액냉매를 만들고 이 액냉매를 증발기(15)로 보내는 응측기(18)의 사이에 배관된 액냉매관(21)에 열교환기(20)가 설치되어 있으므로 증발기(15)의 포화증기압을 낮추어 액냉매를 원활하게 냉각시킬 수 있다.The present invention configured as described above has a low temperature regenerator 12 for regenerating a solution using a rare solution introduced from the absorber 16 and superheated steam generated from the high temperature regenerator 11, and a refrigerant generated in the low temperature regenerator 12. Since the heat exchanger 20 is installed in the liquid refrigerant pipe 21 piped between the condenser 18 which condenses the vapor to form the liquid refrigerant and sends the liquid refrigerant to the evaporator 15, the saturation of the evaporator 15 is achieved. By lowering the vapor pressure, the liquid refrigerant can be cooled smoothly.
즉, 저온재생기(12)에서 나오는 액냉매의 온도는 상당히 고온(약 90℃이상)이다. 따라서 이 온도로 응축기(18)에 유입되면 증발기(15)로 유입되는 냉매의 온도가 너무 높아 증발기(15)의 포화 증기압이 상승하여 원활한 냉동 효과를 얻기 효과를 얻기 힘들다. 따라서 상기 증발기(15)에서 나오는 냉수의 일부와 저온재생기(12)에서 나온 액냉매를 열교환기(20)에서 충분히 열교환시켜 냉각된 액냉매를 응축기(18)로 보내면 상기 응축기(18)에서 나오는 냉매액의 온도는 상당히 낮게되어 증발기(15)에서의 원활한 냉동 효과를 얻게된다.That is, the temperature of the liquid refrigerant exiting the low temperature regenerator 12 is considerably high temperature (about 90 ° C or more). Therefore, when the temperature is introduced into the condenser 18 at this temperature, the temperature of the refrigerant flowing into the evaporator 15 is too high, so that the saturated vapor pressure of the evaporator 15 is increased to obtain a smooth freezing effect. Therefore, a part of the cold water from the evaporator 15 and the liquid refrigerant from the low temperature regenerator 12 are sufficiently heat exchanged in the heat exchanger 20 to send the cooled liquid refrigerant to the condenser 18. The temperature of the liquid is significantly lowered to obtain a smooth freezing effect in the evaporator 15.
그리고 열교환기(20) 대신 액냉매관(21)을 응축기(18)의 전면이나 후면에 배관하여 액냉매를 냉각 할 수도 있다.The liquid refrigerant pipe 21 may be piped to the front or rear of the condenser 18 instead of the heat exchanger 20 to cool the liquid refrigerant.
이상에서 살펴본 바와 같이 본 고안은 저온재생기에서 응축기로 가는 액냉매관에 열교환기를 설치함으로서 증발기의 포화 증기압을 낮추고 냉매 증발이 원활하도록 한 매우 유용한 고안이다.As described above, the present invention is a very useful design that lowers the saturated vapor pressure of the evaporator and facilitates refrigerant evaporation by installing a heat exchanger in a liquid refrigerant pipe going from the low temperature regenerator to the condenser.

Claims (1)

  1. 흡수기에서 유입되는 희용액과 고온재생기에서 발생된 과열증기를 이용하여 용액을 재생시키는 저온재생기와; 상기 저온재생기에서 발생된 냉매증기를 응축하여 액냉매를 만들고 이 액냉매를 증발기로 보내는 응축기와; 상기 저온재생기에서 응축기로 연결되는 액냉매관에 설치되며, 증발기에서 나오는 냉수의 일부를 저온재생기에서 나온 액냉매와 열교환시키어 냉각된 액냉매를 응축기로 보내는 열교환기로 구성함을 특징으로 하는 흡수식 냉,난방기의 액냉매 냉각장치.A low temperature regenerator for regenerating the solution by using the rare solution introduced from the absorber and the superheated steam generated in the high temperature regenerator; A condenser that condenses the refrigerant vapor generated in the low temperature regenerator to form a liquid refrigerant and sends the liquid refrigerant to an evaporator; It is installed in the liquid refrigerant pipe connected to the condenser in the low temperature regenerator, absorption cold, characterized in that consisting of a heat exchanger to send a part of the cold water from the evaporator to the liquid refrigerant from the low temperature regenerator to send the cooled liquid refrigerant to the condenser Liquid-cooled chillers of heaters.
KR2019930008040U 1993-05-14 1993-05-14 Cooling apparatus of liquid refrigerator absorptive airconditioner KR0137580Y1 (en)

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KR0137580Y1 true KR0137580Y1 (en) 1999-03-20

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