KR0113790Y1 - Absorption refrigerating machine - Google Patents

Absorption refrigerating machine Download PDF

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Publication number
KR0113790Y1
KR0113790Y1 KR2019940012732U KR19940012732U KR0113790Y1 KR 0113790 Y1 KR0113790 Y1 KR 0113790Y1 KR 2019940012732 U KR2019940012732 U KR 2019940012732U KR 19940012732 U KR19940012732 U KR 19940012732U KR 0113790 Y1 KR0113790 Y1 KR 0113790Y1
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South Korea
Prior art keywords
temperature regenerator
low temperature
heat exchanger
refrigerant
high temperature
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KR2019940012732U
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Korean (ko)
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KR960002532U (en
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최동순
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최동순
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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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • 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
    • F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • F25B2313/0213—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during heating
    • 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
    • F25B2315/00—Sorption refrigeration cycles or details thereof
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

본 고안은 이중효용 흡수식 냉동기에 관한 것으로 저온 재생기에서 묽은 농도의 흡수액을 가열하여 냉매를 증발시킬 때 그 증발효율을 증대시켜 냉동기의 열효율을 향상시키고, 에너지 소비량을 절감토록 한 것이다.The present invention relates to a dual-effect absorption chiller to increase the evaporation efficiency when the refrigerant is evaporated by heating the absorbent liquid in a low concentration in the low temperature regenerator to improve the thermal efficiency of the refrigerator and reduce energy consumption.

본 고안은 증발기(1), 흡수기(2), 저온 재생기(3), 응축기(4), 고온 재생기(5) 및 고,저온 열교환기(6)(7)등으로 구성한 이중효용 흡수식 냉동기에 있어서 고온 재생기(5)의 연도(25)에 폐열회수 열교환기(26)를 설치하고, 저온 열교환기(7)에서 가열된 묽은 농도의 흡수액이 고온 재생기(5)에서 증발된 냉매증기에 의하여 전열관(22)에서 가열되어 냉매가 증발되는 저온 재생기(3)에 관형 열교환기(27)를 설치하여 폐열회수 열교환기(26)와 연결관(28)(28')으로서 폐회를 형성하여서 된 것이다.The present invention is a dual-effect absorption chiller comprising an evaporator (1), an absorber (2), a low temperature regenerator (3), a condenser (4), a high temperature regenerator (5) and a high and low temperature heat exchanger (6) (7). A waste heat recovery heat exchanger (26) is installed in the flue (25) of the high temperature regenerator (5), and the absorbent liquid having a low concentration heated in the low temperature heat exchanger (7) is transferred to the heat transfer tube by the refrigerant vapor evaporated in the high temperature regenerator (5). The tubular heat exchanger 27 is installed in the low temperature regenerator 3 in which the refrigerant is evaporated and the refrigerant is evaporated to form a closed circuit as the waste heat recovery heat exchanger 26 and the connection pipes 28 and 28 '.

Description

흡수식 냉동기(ABSORPTION REFRIGERATING MACHINE)Absorption refrigeration machine

제1도는 본 고안의 실시예의 계통도.1 is a schematic diagram of an embodiment of the present invention.

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

1 : 증발기 2 : 흡수기1: evaporator 2: absorber

3 : 저온 재생기 4 : 응축기3: low temperature regenerator 4: condenser

5 : 고온 재생기 22 : 전열관5: high temperature regenerator 22: heat pipe

25 : 연도 26 : 폐열회수 열교환기25 year 26 waste heat recovery heat exchanger

27 : 열교환기 28,28' : 연결관27: heat exchanger 28,28 ': connector

29 : 열매체 순환점프29: heat medium circulation jump

본 고안은 흡수식 냉동기에 관한 것이며, 특히 물을 냉매로 사용하고 리튬브로마이(LiBr) 수용액을 흡수액으로 사용하는 이중효용(二重效用) 흡수식 냉동기에 관한 것이다.The present invention relates to an absorption chiller, and more particularly, to a dual-effect absorption chiller using water as a refrigerant and an aqueous lithium bromine (LiBr) solution as an absorption liquid.

주지하는 바와 같이 이중효용 흡수식 냉동기는 제1도에서 참조되는 바와 같이 고온 재생기(5), 저온 재생기(3), 응축기(4), 증발기(1), 흡수기(2), 고,저온 열교환기(6)(7)등을 구비하여 고온 재생기(5)에서 발생한 냉매증기를 저온 재생기(3)의 전열관(22)에서 응축시킨 냉매액과 저온 재생기(3)에서 증발한 냉매증기를 응축기(4)에 유입하여 냉각관(10')의 냉각수로 냉각 응축한 냉매액을 관로(15)를 경유하여 증발기(1)의 용액받이(24)에 유입하고, 상기 냉매액을 냉매펌프(9)에 의하여 도관(17)을 경유 냉매분무장치(12)에서 증발기(1)내의 냉수관(14)에 살포하여 증발기(1)내의 압력에 상당하는 온도에서 냉매액이 증발될 때 발생되는 기화열에 의하여 냉수관(14)에 공급되는 물을 냉각하여 냉방의 용도로서 사용하며, 증발기(1)에서 증발한 냉매증기는 분리판(11)에서 수분이 분리된 수 흡수기(2)에 유입되어 그 냉매증기는 흡수액 분무장치(13)에서 살포되는 증간농도의 흡수액에 흡수되며, 이때의 흡수액은 냉매증기의 잠열에 의하여 온도가 상승되므로 냉각관(10)으로 공급되는 냉각수에 의하여 냉각시킨다.As noted, the dual-effect absorption chiller is a high temperature regenerator (5), a low temperature regenerator (3), a condenser (4), an evaporator (1), an absorber (2), and a high and low temperature heat exchanger (see FIG. 1). 6) (7) and the like, the refrigerant vapor condensed in the heat transfer pipe 22 of the low temperature regenerator 3 and the refrigerant vapor generated in the high temperature regenerator 3 and the refrigerant vapor evaporated in the low temperature regenerator 3 condenser 4 Is introduced into the solution receiver 24 of the evaporator 1 via the conduit 15, and the refrigerant liquid condensed into the cooling water of the cooling tube 10 'through the conduit 15 is introduced into the solution receiver 24. The conduit (17) is sprayed on the cold water pipe (14) in the evaporator (1) by the diesel refrigerant spray device (12), and the cold water pipe by the heat of vaporization generated when the refrigerant liquid evaporates at a temperature corresponding to the pressure in the evaporator (1). The water supplied to (14) is cooled and used for cooling purposes, and the refrigerant vapor evaporated in the evaporator (1) is discharged from the separation plate (11). The separated water absorber (2) is introduced into the refrigerant vapor is absorbed by the absorbing liquid of the concentration concentration sprayed by the absorbing liquid spraying device (13), the absorption liquid at this time is raised by the latent heat of the refrigerant vapor cooling tube (10) Cool by the cooling water supplied to).

그리고 냉매증기를 흡수하여 흡수능력이 약화된 묽은 농도의 흡수액은 흡수기(2)의 저부에 모은 다음 흡수액펌프(8)에 의하여 저온 열교환기(7)를 경유 가열되어 일부는 도관(20')으로 저온 재생기(3)에 유입시켜 전열관(22)에 의하여 냉매를 증발시킴과 동시에 일부는 도관(20)으로 고온 열교환기(6)를 경유하여 도관(18)을 거쳐 고온 재생기(5)에 유입시켜서 묽은 농도의 흡수액을 버어너에 의하여 가열하면 흡수기(2)에 흡수된 냉매증기의 반정도가 증발된다. 또한 고온 재생기(5)에서 냉매증기가 증발된 진한 농도의 흡수액은 도관(19)으로 고온 열교환기(6)를 경유시켜 묽은 농도의 흡수액과 열교환 시킨 후 저온 재생기(3)에서 도관(21)으로 유출된 중간농도의 흡수액과 혼합되어 저온 열교환기(7)에 유입되고 흡수액 펌프(8')에 의하여 도관(16)을 통하여 흡수액 분무장치(13)에서 분무되며, 고온 재생기(5)에서 발생한 냉매증기는 저온 재생기(3)의 전열관(22)을 통과하면서 저온 열교환기(7)에서 가열되어 저온 재생기(3)으로 유입된 묽은 농도의 흡수액을 가열하여 흡수액중의 냉매를 증발시키면서 냉각 응축되어 냉매액으로 되고 이 냉매액이 도관(23)으로 응축기(4)에 유입된다.In addition, the absorbent liquid having a weak concentration absorbed by the refrigerant vapor is collected at the bottom of the absorber (2), and then heated by the absorbent liquid pump (8) via a low temperature heat exchanger (7), and partly to a conduit (20 '). The refrigerant is introduced into the low temperature regenerator (3) to evaporate the refrigerant by the heat transfer pipe (22), and at the same time, a part of the refrigerant is introduced into the high temperature regenerator (5) via the high temperature heat exchanger (6) via the conduit (18). When a thinner absorbent liquid is heated by the burner, about half of the refrigerant vapor absorbed in the absorber 2 is evaporated. In addition, the concentrated liquid absorbed by the refrigerant vapor in the high temperature regenerator (5) is condensed through the high temperature heat exchanger (6) through the conduit (19), and then heat exchanged with the dilute absorbent liquid, and then from the low temperature regenerator (3) to the conduit (21). The mixture is mixed with the medium concentration absorbed liquid and flows into the low temperature heat exchanger (7) and is sprayed by the absorbent liquid spray device (13) through the conduit (16) by the absorbent liquid pump (8 '), and the refrigerant generated in the high temperature regenerator (5). The vapor is heated in the low temperature heat exchanger (7) while passing through the heat exchanger tube (22) of the low temperature regenerator (3) to heat the absorbent liquid having a low concentration introduced into the low temperature regenerator (3) to cool and condense while evaporating the refrigerant in the absorbent liquid. And the refrigerant liquid flows into the condenser 4 through the conduit 23.

한편 저온 재생기(3)의 중간 농도의 흡수액에서 증발된 냉매증기는 흡수기(2)에서 연결관(10')을 경유하여 유입되는 냉각수에 의하여 냉각 응축되어 냉매액으로 되어 상기한 동작을 반복하게 된다.On the other hand, the refrigerant vapor evaporated from the absorbent liquid of medium concentration of the low temperature regenerator 3 is cooled and condensed by the cooling water introduced from the absorber 2 via the connection pipe 10 ', and the refrigerant liquid is repeated. .

그리고 저온 재생기(3)에서 전열관(22)의 냉매증기에 의하여 가열되어서 냉매가 증발된 중간농도의 흡수액은 도관(21)으로 유출되어 고온 열교환기(6)에서 묽은 농도의 흡수액을 가열한 흡수액과 도관(19)에서 합류하여 중간농도의 흡수액으로 되어 저온 열교환기(7)를 경유한 후 흡수액 펌프(8')에 의하여 흡수액 분무장치(13)에서 살포되는 동작을 반복하게 되는 것이다. 그러나 상기한 이중효용 흡수식 냉동기는 열효율을 증대시키기 위하여 증발기(1)에서 증발된 냉매를 흡수기(2)에서 흡수하여 냉매증기의 흡수능력이 약화된 묽은 농도의 흡수액을 저온 열교환기(7)에서 가열한 후 가열된 흡수액의 일부를 저온 재생기(3)에 유입시켜 고온 재생기(5)에서 발생된 냉매증기로서 전열관(22)에서 가열하여 냉매를 증발시키고 있으나, 냉동기의 열효율은 냉매의 증발량등과 비례하므로 기존의 고,저온 열교환기로서는 열효율의 증대에 한계가 있어서 이의 개선의 여지가 많고, 또한 고온 재생기(5)의 가열온도는 150℃이상을 유지하여야 하므로 가열원으로서 기름, 가스 등과 같은 화석연료를 사용할 경우에는 그 배기가스의 온도가 높아서 냉동기의 운전에 필요한 에너지가 많이 소비되어 경제적이지 못한 문제점이 있는 것이다.The medium absorbed liquid, which is heated by the refrigerant vapor in the heat transfer pipe 22 in the low temperature regenerator 3, and the refrigerant is evaporated, flows out into the conduit 21, and the absorbed liquid heated in the thin liquid absorbed liquid in the high temperature heat exchanger 6; After the conduit 19 is joined to form an intermediate concentration of the absorbent liquid, it passes through the low temperature heat exchanger 7 and is repeated by the absorbent liquid spraying device 13 by the absorbent liquid pump 8 '. However, in order to increase the thermal efficiency, the dual-effect absorption chiller absorbs the refrigerant evaporated from the evaporator 1 in the absorber 2 and heats the thinner absorbent liquid in which the absorption capacity of the refrigerant vapor is weakened in the low temperature heat exchanger 7. After a part of the heated absorbent liquid is introduced into the low temperature regenerator (3), the refrigerant vapor generated in the high temperature regenerator (5) is heated in the heat transfer pipe (22) to evaporate the refrigerant, but the thermal efficiency of the freezer is proportional to the amount of evaporation of the refrigerant. Therefore, the existing high and low temperature heat exchanger is limited to increase the thermal efficiency, so there is much room for improvement. Also, since the heating temperature of the high temperature regenerator 5 must be maintained at 150 ° C or higher, fossil fuels such as oil and gas are used as heating sources. When using the high temperature of the exhaust gas is a problem that is not economical because a lot of energy required for the operation of the refrigerator.

상기한 문제점을 시정하기 위하여 고온 재생기의 연도와 저온 재생기 사이에 히트파이프를 그 증발부를 연도에 응축부를 저온 재싱기내에 위치하도록 설치하여 패열에 의하여 히트 파이프의 증발부를 가열하고 작동유체를 응축부로 이동시켜서 저온 재생기내의 묽은 농도의 흡수액을 가열하는 히트 파이프를 이용한 폐가스열회수장치가 일본국 실용신안출원공개소 62-55051 공보에 개시된 바 있다.In order to correct the above problems, a heat pipe is installed between the flue and the cold regenerator of the hot regenerator so that the condensing part is located in the low temperature ashing machine in the flue, and the evaporation part of the heat pipe is heated by rupture, and the working fluid is moved to the condensation part. A waste gas heat recovery apparatus using a heat pipe that heats a dilute absorbent liquid in a low temperature regenerator has been disclosed in Japanese Utility Model Application Publication No. 62-55051.

그러나 히트 파이프는 통상적으로 열전도율이 양호한 직선상의 금속관내에 작동유체를 진공 충진한 것이고 이를 설치할 때에는 증발부에서 가열된 작도유체를 응축부로 이동시키기 위하여 응축부를 상향 경사지게 설치하여야 하므로 저온 재생기를 고온 재생기 보다 하방에 설치할 경우에는 이의 설치가 불가능하며, 또한 히트 파이프는 그 응축부를 저온 재생기의 재무 일측에 위치되게 설치하여야 하기 때문에 묽은 농도의 흡수액의 가열효과가 낮아지므로서 저온 재생기에서의 냉매액의 증발효율이 떨어져 냉동기의 열효율 향상의 미미하게 되는 것이다.However, heat pipes are usually vacuum-filled with a working fluid in a straight metal tube with good thermal conductivity, and when installed, the low temperature regenerator is inclined upwardly in order to move the heated working fluid from the evaporator to the condenser. If it is installed below, it cannot be installed, and since the heat pipe must be installed at the financial side of the low temperature regenerator, the evaporation efficiency of the refrigerant liquid in the low temperature regenerator is lowered because the heating effect of the thinner absorbent liquid is lowered. This is a slight improvement of the thermal efficiency of the freezer apart.

본 고안은 상기한 실정을 감안하여 냉동기의 열효율을 향상시킴과 동시에 에너지 소비량을 줄일 수 있는 흡수식 냉동기를 제공하는 것을 목적으로 한다.The object of the present invention is to provide an absorption type refrigerator that can improve energy efficiency and reduce energy consumption of the refrigerator in view of the above circumstances.

본 고안은 상기한 목적을 달성하기 위하여 가열원를 설치한 고온 재생기와, 상기 고온 재생기에서 발생된 냉매 증기를 가열원으로 하는 저온 재생기와, 상기 저온 재생기의 전열관과 저온 재생기에서 발생된 냉매 냉매액 및 냉매증기를 냉각하는 응축기와, 상기 응축기에서 발생된 냉매액에 의하여 냉수를 생성하는 증발기와, 상기 증발기에서 증발된 냉매증기를 흡수하는 흡수기와, 상기 흡수기에서 발생된 묽은 농도의 흡수액을 상기 고온 재생기에서 발생된 진한농도의 흡수액에 의하여 가열하는 고,저온 열교환기를 구비한 흡수식 냉동기에 있어서, 상기 고온 재생기의 연도에 폐열회수 열교환기를 설치하고, 상기 저온 재생기의 바닥전체에 열교환기를 설치하여 상기 폐열회수 열교환기와 연결관으로 폐회로를 형성함과 동시에 연결관에 열매체 순환펌프를 설치하여서 된 것이다.The present invention provides a high temperature regenerator provided with a heating source, a low temperature regenerator using a refrigerant vapor generated from the high temperature regenerator as a heating source, a refrigerant refrigerant liquid generated from a heat pipe and a low temperature regenerator of the low temperature regenerator, A condenser for cooling the refrigerant vapor, an evaporator for generating cold water by the refrigerant liquid generated in the condenser, an absorber for absorbing the refrigerant vapor evaporated in the evaporator, and an absorbent liquid having a thin concentration generated in the absorber. In an absorption chiller equipped with a high and low temperature heat exchanger heated by a concentrated concentration of the liquid generated in the waste heat recovery unit, a waste heat recovery heat exchanger is installed in the flue of the high temperature regenerator, and a heat exchanger is installed in the entire bottom of the low temperature regenerator. The heat exchanger and the connector form a closed circuit and at the same time, This is done by installing a ring pump.

이하 실시예를 도면에 의하여 설명한다.Embodiments will be described below with reference to the drawings.

본 고안은 제1도에 도시한 바와 같이 가열원을 설치한 고온 재생기와(5), 상기 고온 재생기(5)에서 발생된 냉매 증기를 가열원으로 하는 저온 재생기(3)와, 상기 저온 재생기(3)의 전열관(22)과 저온 재생기(3)에서 발생된 냉매액 및 냉매증기를 냉각하는 응축기(4)와, 상기 응축기(4)에서 발생된 냉매액에 의하여 냉수를 생성하는 증발기(1)와, 상기 증발기(1)에서 증발된 냉매증기를 흡수하는 흡수기(2)와, 상기 흡수기(2)에서 발생된 묽은 농도의 흡수액을 상기 고온 재생기(5)에서 발생된 진한농도의 흡수액에 의하여 가열하는 고,저온 열교환기(6)(7)를 구비한 이중효용 흡수식 냉동기에 있어서, 상기 고온 재생기(5)의 연도(25)에 폐열회수 열교환기(26)를 설치하고, 상기 저온 열교환기(7)에서 가열된 묽은 농도의 흡수액이 고온 재생기(5)에서 증발된 냉매증기에 의하여 전열관(22)에서 가열되어 냉매가 증발되는 저온 재생기(3)의 바닥전체에 열교환기(27)를 설치하여 폐열회수 열교환기(26)와 열교환기(27)를 연결관(28)(28')으로서 폐회로를 형성함과 동시에 연결관(28')에 열매체 순환펌프(29)를 설치하여서 된 것이다.The present invention is a high temperature regenerator (5) provided with a heating source as shown in Figure 1, a low temperature regenerator (3) using the refrigerant vapor generated in the high temperature regenerator (5) as a heating source, and the low temperature regenerator ( 3) a condenser 4 for cooling the refrigerant liquid and refrigerant vapor generated in the heat transfer pipe 22 and the low temperature regenerator 3, and an evaporator 1 for generating cold water by the refrigerant liquid generated in the condenser 4; And, the absorber (2) for absorbing the refrigerant vapor evaporated in the evaporator (1), and the thinner absorbent liquid generated in the absorber (2) is heated by the concentrated liquid absorbed in the high temperature regenerator (5) In the dual-effect absorption chiller having a high and low temperature heat exchanger (6) and (7), a waste heat recovery heat exchanger (26) is installed in the flue (25) of the high temperature regenerator (5), and the low temperature heat exchanger ( The dilute absorbent liquid heated in 7) is cooled by the refrigerant vapor evaporated in the high temperature regenerator (5). By installing a heat exchanger 27 in the entire bottom of the low temperature regenerator 3 heated by the heat transfer tube 22 to evaporate the refrigerant, thereby connecting the waste heat recovery heat exchanger 26 and the heat exchanger 27 to the connection pipe 28 and 28. At the same time as forming a closed circuit as '), the heat medium circulation pump 29 is provided in the connecting pipe 28'.

상기한 실시예 도면에서는 열교환기(27)를 전열관(22)의 저부에 설치하였으나 상부에 설치할 수도 있으며, 폐열회수 열교환기(26)는 튜브형 열교환기를 도시하였고 열교환기(27)는 관형 열교환기를 도시하였으나 공지한 다른 열교환기를 사용할 수 있음은 물론이고, 그 열매체는 공지한 광유 등이 사용되는 것이다.In the above-described embodiment, the heat exchanger 27 is installed at the bottom of the heat pipe 22, but may be installed at the top. The waste heat recovery heat exchanger 26 shows a tubular heat exchanger and the heat exchanger 27 shows a tubular heat exchanger. However, other well-known heat exchanger can be used, as well as the heat medium is a known mineral oil or the like is used.

이상과 같은 본 고안은 저온 열교환기(7)에서 가열된 묽은 농도의 흡수액이 도관(20')으로 저온 재생기(3)에 유입되면 그 흡수액은 고온 재생기(5)에서 증발된 냉매증기에 의하여 전열관(22)에서 가열되어 냉매가 증발됨과 동시에 고온 재생기(5)의 연도(25)에서 배출되는 폐열에 의하여 폐열회수 열교환기(26)에서 열매체가 가열되고 그 열매체는 열교환기(27)를 흐르면서 묽은 농도의 흡수액을 균일하게 가열하여 냉매액을 증발시키므로서 냉매의 증발효율이 대폭적으로 증대되며, 열교환기(27)에서 묽은 농도의 흡수액과 열교환을 마친 열매체는 순환펌프(29)에 의하여 폐열회수 열교환기(26)에 유입되어 재가열되는 순환싸이클을 형성하는 것이다.The present invention as described above is when the absorbent liquid of the low concentration heated in the low temperature heat exchanger (7) flows into the low temperature regenerator (3) to the conduit (20 ') the absorbent liquid is transferred to the heat transfer tube by the refrigerant vapor evaporated in the high temperature regenerator (5) The heat medium is heated in the waste heat recovery heat exchanger 26 by the waste heat discharged from the flue 25 of the high temperature regenerator 5 at the same time as the refrigerant is evaporated and the heat medium flows through the heat exchanger 27. The evaporation efficiency of the refrigerant is drastically increased by evaporating the refrigerant liquid by uniformly heating the absorbent liquid of the concentration, and the heat medium which has undergone heat exchange with the dilute absorbent liquid in the heat exchanger 27 is subjected to the waste heat recovery heat exchange by the circulation pump 29. It is to form a circulation cycle flowing into the group 26 and reheated.

그리고 저온 재생기(3)에서 증발된 냉매는 전열관(22)에서 응축 액화된 냉매액과 함께 응축기(4)에서 응축액화되는 것이다.The refrigerant evaporated in the low temperature regenerator 3 is condensed in the condenser 4 together with the refrigerant liquid condensed in the heat transfer pipe 22.

이상과 같이 본 고안은 고온 재생기의 연도에 폐열회수 열교환기를 설치하여 폐열에 의하여 가열된 열매체를 열매체 순환펌프에 의하여 저온 재생기의 바닥 전체에 설치한 열교환기에 순환시켜서 저온 재생기에서 유입되는 묽은 농도의 흡수액을 전열관과 함께 가열하여 묽은 농도의 흡수액의 전표면에서 균일하고 신속하게 냉매액을 증발시키므로서 그 증발효율이 증대되어 냉동기의 열효율이 향상되고, 묽은 농도의 흡수액을 가열하는 열교환기는 그 열원으로서 고온 재생기의 폐열을 활용하므로서 에너지 절감에도 기여하며 저온 재생기를 고온 재생기 보다 하방에 설치할 경우에도 열매체를 순환펌프에 의하여 순환시키므로서 폐열을 회수할 수 있는 등의 효과가 있는 것이다.As described above, the present invention installs a waste heat recovery heat exchanger in the year of the high temperature regenerator, circulates the heat medium heated by the waste heat to the heat exchanger installed in the entire bottom of the low temperature regenerator by the heat medium circulation pump, and absorbs the dilute concentration flowing from the low temperature regenerator. Is heated together with the heat transfer tube to uniformly and rapidly evaporate the refrigerant liquid from the entire surface of the thinner absorbent liquid, thereby increasing its evaporation efficiency and improving the thermal efficiency of the freezer, and the heat exchanger heating the thinner absorbent liquid as a heat source. By utilizing the waste heat of the regenerator, it also contributes to energy saving, and even when the low temperature regenerator is installed below the high temperature regenerator, the heat medium is circulated by the circulation pump to recover the waste heat.

Claims (1)

가열원을 설치한 고온 재생기와, 상기 고온 재생기에서 발생된 냉매 증기를 가열원으로 하는 저온 재생기와, 상기 저온 재생기의 전열관과 저온 재생기에서 발생된 냉매액 및 냉매증기를 냉각하는 응축기와, 상기응축기에서 발생된 냉매액에 의하여 냉각수를 생성하는 증발기와, 상기 증발기에서 증발된 냉매증기를 흡수하는 흡수기와, 상기 흡수기에서 발생된 묽은 농도의 흡수액을 상기 고온 재생기에서 발생된 진한농도의 흡수액에 의하여 가열하는 고,저온 열교환기를 구비한 흡수식 냉동기에 있어서, 상기 고온 재생기의 연도에 폐열회수 열교환기를 설치하고, 상기 저온 재생기의 바닥 전체에 열교환기를 설치하여 상기 폐열회수 열교환기와 연결관으로 페회로를 형성함과 동시에 연결관에 열매체 순환펌프를 설치하여서 된 흡수식 냉동기.A high temperature regenerator provided with a heating source, a low temperature regenerator using the refrigerant vapor generated in the high temperature regenerator as a heating source, a condenser for cooling the refrigerant liquid and the refrigerant vapor generated in the heat transfer tube and the low temperature regenerator of the low temperature regenerator, and the condenser Heating the evaporator to generate cooling water by the refrigerant liquid generated by the liquid crystal, the absorber absorbing the refrigerant vapor evaporated by the evaporator, and the absorbent liquid of the low concentration generated in the absorber by the concentrated liquid absorbed in the high temperature regenerator. In the absorption chiller having a high and low temperature heat exchanger, a waste heat recovery heat exchanger is installed in the year of the high temperature regenerator, and a heat exchanger is installed on the entire bottom of the low temperature regenerator to form a closed circuit with the waste heat recovery heat exchanger and a connection pipe. And absorption chiller by installing heat medium circulation pump in the connection pipe.
KR2019940012732U 1994-06-02 1994-06-02 Absorption refrigerating machine KR0113790Y1 (en)

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KR0113790Y1 true KR0113790Y1 (en) 1998-04-13

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