KR200144045Y1 - Absorption type cooler - Google Patents

Absorption type cooler Download PDF

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Publication number
KR200144045Y1
KR200144045Y1 KR2019960038278U KR19960038278U KR200144045Y1 KR 200144045 Y1 KR200144045 Y1 KR 200144045Y1 KR 2019960038278 U KR2019960038278 U KR 2019960038278U KR 19960038278 U KR19960038278 U KR 19960038278U KR 200144045 Y1 KR200144045 Y1 KR 200144045Y1
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heat exchanger
low temperature
temperature regenerator
absorbent liquid
refrigerant
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KR2019960038278U
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Korean (ko)
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KR19980025483U (en
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최동순
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최동순
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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

Abstract

본 고안은 흡수기 냉동기에 관한 것으로서, 폐열에 의하여 흡수액을 직접 가열하므로서 효율을 극대화하고, 구조를 간단하게 한 것이다.The present invention relates to an absorber freezer, by maximizing the efficiency and simple structure by directly heating the absorbent liquid by waste heat.
본 고안은 증발기(1), 흡수기(2), 저온 재생기(3), 응축기(4), 고온 재생기(5) 및 고·저온 열교환기(6)(7)등을 구비한 이중효용 흡수식 냉동기에 있어서, 고온 재생기(5)의 연도(25)에 폐열회수 열교환기(26)를 설치하고, 상기 폐열회수 열교환기(26)에 상기 흡수기(2)의 저부에 모인 흡수액을 저온 열교환기(7)에서 가열한 후 일부의 흡수액을 저온 재생기(3)에 이송하는 도관(20')을 연결하여 폐열에 의하여 묽은 농도의 흡수액을 직접 가열토록 한 것이다.The present invention is a dual-effect absorption chiller equipped with 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). The waste heat recovery heat exchanger (26) is installed in the flue (25) of the high temperature regenerator (5), and the absorbent liquid collected at the bottom of the absorber (2) in the waste heat recovery heat exchanger (26) is a low temperature heat exchanger (7). After heating in the conduit (20 ') for transferring a portion of the absorbent liquid to the low temperature regenerator (3) by connecting the waste liquid to direct heating of the diluted concentration.

Description

흡수식 냉동기Absorption Chiller
본 고안은 흡수식 냉동기에 관한 것이며, 특히 물을 냉매로, 리튬브로마이드(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 bromide (LiBr) solution as an absorption liquid.
주지하는 바와 같이 이중효용 흡수식 냉동기는 제1도에서 참조되는 바와 같이 증발기(1), 흡수기(2), 저온 재생기(3), 응축기(4), 고온 재생기(5) 및 고·저온 열교환기(6)(7) 등을 구비하여 고온 재생기(5)에서 발생한 냉매증기를 저온 재생기(3)에 설치한 전열관(22)에서 응축시킨 냉매액과 저온 재생기(3)에서 증발한 냉매증기를 응축기(4)에 유입시켜 냉각관(10')의 냉각수로 응축하여 그 냉매액을 관로(15)를 경유하여 증발기(1)의 용액받이(24)에 유입시킨 후 냉매펌프(9)에 의하여 도관(17)을 경유하여 냉매분무장치(12)에서 증발기(1) 내의 이용기기용 냉수관(14)에 살포하므로서 증발기(1) 내의 압력에 상당하는 온도에서 냉매액이 증발될 때 발생되는 기화열에 의하여 이용기기용 냉수관(14)에 공급되는 물 등의 열매체를 냉각하여 그 열매체를 냉방·냉동 등의 용도로서 사용하고, 증발기(1)에서 증발한 냉매증기는 분리판(11)에서 수분이 분리된 후 흡수기(2)에 유입되어 흡수액 분무장치(13)에서 살포되는 증간농도의 흡수액에 흡수되며, 이때의 흡수액은 냉매증기의 잠열에 의하여 온도가 상승되므로 냉각관(10)으로 공급되는 냉각수에 의하여 냉각시킨다.As is well known, the dual-effect absorption chiller is 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 (see FIG. 1). 6) (7) and the like, the refrigerant liquid condensed in the heat transfer pipe 22 installed in 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) and condensed into the cooling water of the cooling tube 10 'and the refrigerant liquid is introduced into the solution receiver 24 of the evaporator 1 via the pipe line 15, and then the conduit (by the refrigerant pump 9). 17) by the vaporization heat generated when the refrigerant liquid evaporates at a temperature corresponding to the pressure in the evaporator 1 by spraying the refrigerant spray device 12 to the cold water pipe 14 for the user equipment in the evaporator 1 via Cooling medium such as water supplied to the cold water pipe 14 for the equipment used for cooling and heating the heating medium The refrigerant vapor evaporated in the evaporator 1 is absorbed by the absorbent liquid of the thick concentration sprayed by the absorbent spray device 13 after the water is separated from the separator 11 and flows into the absorber 2. The absorption liquid is cooled by the cooling water supplied to the cooling tube 10 because the temperature is increased by the latent heat of the refrigerant vapor.
그리고 냉매증기를 흡수하여 흡수능력이 약화된 묽은 농도의 흡수액은 흡수기(2)의 저부에 모은 다음 흡수액 펌프(8)에 의하여 저온 열교환기(7)를 경우 가열하여서 일부는 도관(20')으로 저온 재생기(3)에 유입시킨 후 전열관(22)에 의하여 냉매를 증발시키고, 일부는 도관(20)으로 고온 열교환기(6)를 경유하여 도관(18)을 거쳐 고온 재생기(5)에 유입시켜서 묽은 농도의 흡수액을 가열원에 의하여 가열하면 흡수기(2)에서 흡수된 냉매증기의 반정도가 증발된다.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 the low temperature heat exchanger (7) is heated by an absorbent liquid pump (8), and part of the absorbent liquid is conduit (20 '). After flowing into the low temperature regenerator (3), the refrigerant is evaporated by the heat transfer pipe (22), and 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 a heating source, about half of the refrigerant vapor absorbed by the absorber 2 is evaporated.
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 중간농ㄷ의 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 가열된 후 저온 재생기(3)로 유입된 묽은 농도의 흡수액을 가열하여 흡수액중의 냉매를 증발시키면서 냉각 응축되어 냉매액으로 되고 이 냉매액이 도관(23)으로 응축기(4)에 유입된다. 한편 저온 재생기(3)의 중간 농도의 흡수액에서 증발된 냉매증기는 흡수기(2)의 냉각관(10)과 연결관(10'')으로 연결된 냉각관(10')에 의하여 냉각 응축되어 냉매액으로 되어 상기한 동작을 반복하게 된다.Further, the concentrated absorbent liquid in which the refrigerant vapor is evaporated from the high temperature regenerator 5 is heat-exchanged with the thinner absorbent liquid via the high temperature heat exchanger 6 through the conduit 19 and then the conduit 21 in the low temperature regenerator 3. It is mixed with the medium absorbed liquid flowing out into the low temperature heat exchanger (7), and is sprayed by the absorbent liquid spraying device (13) through the conduit (16) by the absorbent liquid pump (8 '), the high temperature regenerator (5) The refrigerant vapor generated at is heated in the low temperature heat exchanger (7) while passing through the heat exchanger tube (22) of the low temperature regenerator (3), and then heats the dilute absorbent liquid introduced into the low temperature regenerator (3) to evaporate the refrigerant in the absorbent liquid. Cooled and condensed to form a refrigerant liquid, which flows into condenser 4 through conduit 23. Meanwhile, the refrigerant vapor evaporated from the intermediate liquid of the low temperature regenerator 3 is cooled and condensed by the cooling tube 10 'connected to the cooling tube 10 of the absorber 2 and the connecting tube 10' '. The above operation is repeated.
그리고 저온 재생기(3)에서 전열관(22)의 냉매증기에 의하여 가열되어 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.The medium absorbed liquid, which is heated by the refrigerant vapor of 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 '.
그러나 상기한 이중효율 흡수식 냉동기는 그 효율을 증대시키기 위하여 증발기(1)에서 증발된 냉매증기를 흡수기(2)에서 흡수하는 냉매증기의 흡수능력이 약화된 묽은 농도의 흡수액을 저온 열교환기(7)에서 가열한 후 가열된 흡수액의 일부를 저온 재생기(3)에 유입시키고 고온 재생기(5)에서 발생된 냉매증기로 전열관(22)에서 가열하여 냉매를 증발시키고 있으나 냉동기의 효율은 냉매의 증발량 등과 비례하므로 기존의 고·저온 열교환기로서는 효율의 증대에 한계가 있어서 이의 개선의 여지가 많고, 또한 고온 재생기(5)의 가열온도는 150℃ 이상 유지되어야 하므로 가열원으로서 기름, 가스등과 같은 화석연료를 사용할 경우에는 그 배기가스의 온도가 높기 때문에 냉동기의 운전에 필요한 에너지가 많이 소비되므로 경제적이지 못한 문제점이 있는 것이다.However, in order to increase the efficiency, the above-described dual-efficiency absorption type refrigerator has a low concentration heat exchanger (7) for absorbing a thin liquid absorbed by the refrigerant vapor absorbing the refrigerant vapor evaporated in the evaporator (1). After heating at, a portion of the heated absorbent liquid is introduced into the low temperature regenerator 3 and the refrigerant vapor generated by the high temperature regenerator 5 is heated in the heat transfer pipe 22 to evaporate the refrigerant, but the 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 efficiency, and 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. In case of use, because the temperature of the exhaust gas is high, energy required for the operation of the refrigerator is consumed. to be.
본 고안의 출원인은 상기한 문제점을 시정하기 위하여 고온재생기의 연도에 폐열회수 열교환기를 설치학, 저온 재생기에 열교환기를 설치하여 상기 폐열회수 열교환기와 순환펌프가 설치된 열매체 도관에 의하여 폐회로를 형성하여 냉동기의 효율을 향상하고, 에너지 소비량을 줄일 수 있는 흡수식 냉동기를 출원한 바 있다.(1996년 실용신안 출원공개 제2532호 공보참조)Applicant of the present invention is to install the waste heat recovery heat exchanger in the year of the high temperature regenerator in order to correct the above problems, to install a heat exchanger in the low temperature regenerator to form a closed circuit by the heat medium conduit provided with the waste heat recovery heat exchanger and the circulation pump of the freezer He has applied for an absorption chiller that can improve efficiency and reduce energy consumption (see Korean Utility Model Application Publication No. 2532).
그러나 상기한 선출원은 폐열회수 열교환기에서 가열된 열매체를 저온 재생기에 설치된 열교환기에 순환시켜서 중간 농도의 흡수액과 간접 열교환하여 흡수액 중의 냉매를 증발시키므로서 그 효율의 향상이 양호하지 못하고, 폐열회수 열교환기, 냉매 증발용 열교환기 및 순환펌프 등을 구비하여야 하므로 구조가 복잡하여 원가가 상승되는 문제점이 있는 것이다.However, the above-mentioned source circulates the heat medium heated in the waste heat recovery heat exchanger to the heat exchanger installed in the low temperature regenerator, indirect heat exchange with the medium of the absorbent liquid to evaporate the refrigerant in the absorbent liquid, so that the efficiency of the heat recovery heat exchanger is not good. Since the refrigerant evaporation heat exchanger and the circulation pump should be provided, there is a problem in that the cost is increased due to the complicated structure.
본 고안은 상기한 문제점을 시정하여 폐열에 의하여 흡수액을 직접 가열하므로서 효율을 극대화하고, 구조가 간단한 흡수식 냉동기를 제공하는 것을 목적으로 한다.The present invention aims to provide the absorption chiller having a simple structure by maximizing efficiency by directly heating the absorbent liquid by waste heat by correcting the above problems.
본 고안은 상기한 목적을 달성하기 위하여 증발기, 흡수기, 저온 재생기, 응축기, 고온 재생기 및 고·저온 열교환기를 구비한 이중효율 흡수식 냉동기에 있어서, 고온 재생기의 연도에 폐열회수 열교환기를 설치하고, 상기 폐열회수 열교환기에 저온 열교환기에서 가열된 흡수액 중 일부를 저온 재생기에 이송하는 도관을 연결하여 폐열에 의하여 흡수액을 직접 가열함을 특징으로 한 것이다.The present invention is a dual-efficiency absorption chiller equipped with an evaporator, an absorber, a low temperature regenerator, a condenser, a high temperature regenerator and a high and low temperature heat exchanger in order to achieve the above object, the waste heat recovery heat exchanger is installed in the year of the high temperature regenerator, the waste heat A conduit for transferring a portion of the absorbent liquid heated in the low temperature heat exchanger to the low temperature regenerator is connected to the recovery heat exchanger to directly heat the absorbent liquid by waste heat.
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 20' : 도관5: high temperature regenerator 20 ': conduit
22 : 전열관 25 : 연도22: heat pipe 25: year
26 : 폐열회수 열교환기26: waste heat recovery heat exchanger
본 고안은 제1도에 도시한 바와 같이 증발기(1), 흡수기(2), 저온 재생기(3), 응축기(4), 고온 재생기(5) 및 고·저온 열교환기(6)(7)등을 구비한 이중효용 흡수식 냉동기에 있어서, 고온 재생기(5)의 연도(25)에 폐열회수 열교환기(26)를 설치하고, 상기 폐열회수 열교환기(26)에 상기 흡수기(2)의 저부에 모은 묽은 농도의 흡수액을 저온 열교환기(7)에서 75℃ 정도의 온도로 가열한 후 일부의 흡수액을 저온 재생기(3)에 이송하는 도관(20')을 연결하여 흡수액을 폐열회수 열교환기(26)를 경유시키므로서 폐열에 의하여 묶은 농도의 흡수액을 직접 가열토록 한 것이다.The present invention, as shown in Figure 1, evaporator (1), absorber (2), low temperature regenerator (3), condenser (4), high temperature regenerator (5) and high and low temperature heat exchanger (6) (7), etc. In the dual-effect absorption chiller provided with a waste heat recovery heat exchanger (26) in the flue (25) of the high temperature regenerator (5), and collected in the waste heat recovery heat exchanger (26) at the bottom of the absorber (2). After heating the absorbent liquid in a low concentration to a temperature of about 75 ° C. in the low temperature heat exchanger 7, a conduit 20 'which transfers a part of the absorbent liquid to the low temperature regenerator 3 is connected to the waste heat recovery heat exchanger 26. By passing through, the absorbent liquid of the concentration bound by waste heat is directly heated.
상기한 실시예 도면에서 폐열회수 열교환기(26)는 튜브형 열교환기를 도시하였으나 공지한 다른 열교환기를 사용할 수 있음은 물론이다.Although the waste heat recovery heat exchanger 26 in the above-described embodiment shows a tubular heat exchanger, other known heat exchangers may be used.
이상과 같은 본 고안은 저온 열교환기(7)에서 가열된 묽은 농도의 흡수액이 도관(20')으로 저온 재생기(3)에 이송될 때 고온 재생기(5)의 연도(25)에서 배출되는 폐열에 의하여 폐열회수 열교환기(26)에서 가열되어 저온 재생기(3)에 유입된 다음 전열관(22)에서 고온 재생기(5)에서 증발된 냉매증기에 의하여 냉매가 증발되는 바, 상기와 같이 묽은 농도의 흡수액을 폐열회수 열교환기(26)에서 직접 가열하면 냉매의 증발효율이 증대되어서 냉동기의 효율이 극대화되는 것이다.The present invention as described above is applied to the waste heat discharged from the flue 25 of the high temperature regenerator 5 when the absorbent liquid having a low concentration heated in the low temperature heat exchanger 7 is transferred to the low temperature regenerator 3 by the conduit 20 '. The refrigerant is heated by the waste heat recovery heat exchanger (26) and introduced into the low temperature regenerator (3), and then the refrigerant is evaporated by the refrigerant vapor evaporated in the high temperature regenerator (5) in the heat transfer pipe (22). Direct heating in the waste heat recovery heat exchanger 26 increases the evaporation efficiency of the refrigerant, thereby maximizing the efficiency of the freezer.
또한 본 고안은 기존의 흡수액펌프(8)를 활용하고 연도에 폐열회수 열교환기(26)만을 설치하여 묽은 농도의 흡수액을 직접 가열하므로서 상기한 선출원 보다 그 구조가 간단하게 되는 것이다.In addition, the present invention utilizes the existing absorbent liquid pump 8 and installs only the waste heat recovery heat exchanger 26 in the year to directly heat the absorbent liquid in a thin concentration, thereby simplifying the structure than the above-described prior application.
이상과 같이 본 고안은 고온 재생기의 연도에 폐열회수 열교환기를 설치하고, 상기 폐열회수 열교환기에 저온 열교환기에서 가열된 흡수액중 일부를 저온 재생기에 이송하는 도관을 연결하여 폐열에 의하여 묽은 농도의 흡수액을 직접 가열하므로서 저온 재생기에서의 냉매의 증발효율이 증대되어 냉동기의 효율이 극대화되고, 구조가 간단하므로 원가가 절감되고 소형화할 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, and connects a conduit for transferring a portion of the absorbed liquid heated in the low temperature heat exchanger to the low temperature regenerator to connect the waste heat recovery heat exchanger to the dilute absorbent liquid by the waste heat. By directly heating, the evaporation efficiency of the refrigerant in the low temperature regenerator is increased to maximize the efficiency of the freezer, and the structure is simple, so that the cost can be reduced and the size can be reduced.

Claims (1)

  1. 증발기, 흡수기, 저온 재생기, 응축기, 고온 재생기 및 고·저온 열교환기를 구비한 이중효용 냉동기에 있어서, 고온 재생기의 연도에 폐열회수 열교환기를 설치하고, 상기 폐열회수 열교환기에 저온 열교환기에서 가열된 흡수액중 일부를 저온 재생기에 이송하는 도관을 연결하여 폐열에 의하여 흡수액을 직접 가열함을 특징으로 한 흡수식 냉동기.In a dual-effect freezer equipped with an evaporator, an absorber, a low temperature regenerator, a condenser, a high temperature regenerator, and a high and low temperature heat exchanger, a waste heat recovery heat exchanger is installed in the year of the high temperature regenerator, and the waste heat recovery heat exchanger is included in the absorbent liquid heated in the low temperature heat exchanger. An absorption chiller characterized in that a portion of a cold condenser is connected to directly heat the absorbent liquid by waste heat.
KR2019960038278U 1996-11-04 1996-11-04 Absorption type cooler KR200144045Y1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100449973B1 (en) * 2002-09-17 2004-10-01 최동순 Double effect model absorbtion type refrigerator

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* Cited by examiner, † Cited by third party
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KR100307749B1 (en) * 1998-12-29 2001-11-02 구자홍 Absorption cooling and heating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100449973B1 (en) * 2002-09-17 2004-10-01 최동순 Double effect model absorbtion type refrigerator

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