KR900003161B1

KR900003161B1 - Apparatus for condensation using heat pump

Info

Publication number: KR900003161B1
Application number: KR1019860005619A
Authority: KR
Inventors: 박노현
Original assignee: 한국식품개발 연구원; 권태완
Priority date: 1986-07-11
Filing date: 1986-07-11
Publication date: 1990-05-09
Also published as: KR880001989A

Abstract

Heat supplied by a refrigerant condenser (2) of a heat pump (1) is supplied to a heat exchanger (13) through an water heating tank (5). The sample supplied to the heat exchanger is heated and the heated sample is fed to a rotary condensation cone (9'). The heated water from the heating tank is circulated to a heat exchanger (10) provided at the outside of the cone. A vapor generated in the condensation cone is passed to the outside of a vapor condenser (12), and a cooled water is circulated in the inside of the vapor condenser in order to condensate the vapor of the condensation cone.

Description

Low temperature concentration method using heat pump

첨부도면은 본 발명을 설명하기 위한 원리 설명도.The accompanying drawings are explanatory views for explaining the present invention.

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

1 : 열 펌프 1' : 압축기1: heat pump 1 ': compressor

2 : 냉매응축기 3 : 팽창밸브2: refrigerant condenser 3: expansion valve

4 : 증발기 5 : 가열수탱크4 evaporator 5 heating water tank

6 : 냉각수탱크 7 : 가열수 순환펌프6: cooling water tank 7: heating water circulation pump

8 : 냉각수 순환펌프 9 : 농축기8: cooling water circulation pump 9: concentrator

9' : 농축콘 10 : 가열수 열교환기9 ': concentrated cone 10: heated water heat exchanger

11 : 회전농축용 모타 12 : 수증기응축기11: motor for rotary concentration 12: steam condenser

13 : 시료가열 열교환기 14 : 시료이송펌프13: sample heating heat exchanger 14: sample transfer pump

15 : 농축액토출펌프 16 : 진공펌프15: concentrated liquid discharge pump 16: vacuum pump

17 : 응축액펌프 18 : 냉각수 순환펌프17: condensate pump 18: cooling water circulation pump

19, 20 : 가열수 순환펌프 21 : 시료탱크19, 20: hot water circulation pump 21: sample tank

22 : 압력계 23 : 온도계22: pressure gauge 23: thermometer

본 발명은 농축기에서 시료를 농축하는데 필요한 가열과 냉가 작용을 별도의 외부 열원의 공급없이 열 펌프(Heat Pump)의 응축열과 증발열을 제공하는 열 펌프를 이요한 저온 농축방법에 관한 것이다.The present invention relates to a low temperature concentration method using a heat pump that provides the heat of condensation and the heat of evaporation of a heat pump without supplying a separate external heat source for heating and cooling action required for concentrating a sample in a concentrator.

냉도기를 운전하는데는 냉매의 응축열과 증발열이 필수적이다. 일반적으로 냉동냉장은 증발열만 사용하고 냉매의 응축열은 내려지고 있다. 냉동기의 성능은 압축기에 소비된 열당량에 대한 냉동열량으로 표시되어 증발열쪽의 성적계수(Coefficient of performance)는 3∼4 정도이고 응축열쪽의 성적계수는 4~5 정도가 보통이다.In order to operate the chiller, the heat of condensation and evaporation of the refrigerant are essential. In general, refrigeration refrigeration uses only the heat of evaporation and the heat of condensation of the refrigerant is lowered. The performance of the freezer is expressed as the amount of freezing heat relative to the heat equivalent of the compressor. The coefficient of performance on the evaporative heat side is about 3 to 4, and the coefficient on the condensation side is usually about 4 to 5 degrees.

열 펌프는 냉동 싸이클에서 응축열만을 사용하여 가열용으로 쓰거나 응축열과 증발열을 동시에 사용하여 가열과 냉각이 이루어지는 것을 말한다. 따라서 열 펌프를 이용한다면 성적계수가 높아지게 되므로 이를 농축증발장치에 적용시켜 가열은 냉동기의 냉매응축열로, 수증기응축은 냉매증발열로 사용하며 열 펌프 싸이클과 열교환기가 부착된 연속회전식 농축장치를 조합한 것이 본 발명의 특징이다.The heat pump is used for heating using only condensation heat in the refrigeration cycle, or heating and cooling is performed by using condensation heat and evaporative heat simultaneously. Therefore, if the heat pump is used, the grade coefficient is increased, so it is applied to the condensation evaporator, and the heating is used as the refrigerant condensation heat of the refrigerator, and the steam condensation is used as the refrigerant evaporation heat. It is a feature of the present invention.

본 발명의 실시예를 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail as follows.

열 펌프(1) 싸이클은 압축기(1')→냉매응축기(2)→팽창밸브(3)→증발기(4)의 순서로 냉매가스가 순환되며, 가열수는 냉매응축기(2)에서 물순환펌프(7)에 의해 응축열을 열교환시켜 가열수 탱크(5)에 연결되어지며 물의 온도를 상승시키고, 냉각수는 증발기(4)의 증발열을 물순환 펌프(8)에 의해 냉각수 탱크(6)와 연결되어 물의 온도가 떨어지게 된다.In the cycle of the heat pump (1), the refrigerant gas is circulated in the order of the compressor (1 ') → refrigerant condenser (2) → expansion valve (3) → evaporator (4), and the heated water is pumped from the refrigerant condenser (2) to the water circulation pump. Heat exchange condensation by (7) is connected to the heating water tank (5) and the temperature of the water is increased, the cooling water is connected to the cooling water tank (6) by the evaporation heat of the evaporator (4) by the water circulation pump (8) The temperature of the water drops.

또한 회전연속식 농축기(9)는 회전식농축콘(9')이 회전농축용모타(11)에 연결되어 고속회전하고, 시료는 시료탱크(21)에서 시료이송 펌프(14)를 거쳐 판형시료가열 열교환기(13)에서 가열되어 농축콘(9')의 상단부위로 투입된다. 이때 농축콘(9')내부는 진공펌프(16)에 의해 저진공 상태를 이루며 이조건에서 시료는 농축이 이루어지게 되며 진공의 정도는 압력기(22)로서 조절한다. 농축된 시료는 농축콘(9')하단부위에서부터 농축액토출펌프(15)에 의해 얻어진다. 이때 농축액에 발생된 수증기는 코일 열교환기(12)에서 응축되어 응축액 펌프(17)로 배출된다. 농축에 필요한 증발잠열은 열 펌프(1)의 응축기에서 얻어진 응축잠열이 가열수탱크(5)에 포집되어 가열수 순환펌프(20)에 의해 시료가열 열교환기(13)로 보내지며 시료탱크(21)에서 공급된 시료를 시료가열 열교환기(13)에서 가열시켜 시료가열량으로 증발열을 입부 얻고, 회전농축콘(9')외부에서 열교환기(10)를 장착하여 가열수 순환펌프(19)를 운전하여 얻게 된다.In addition, the rotary continuous concentrator 9 is rotated at a high speed by connecting the rotary condenser 9 'to the rotary concentrator motor 11, and the sample is heated through the sample transfer pump 14 in the sample tank 21 to heat the plate sample. Heated in the heat exchanger 13 is injected into the upper end portion of the condensation cone (9 '). At this time, the concentration cone (9 ') is made in a low vacuum state by the vacuum pump 16, under this condition, the sample is concentrated and the degree of vacuum is controlled by the pressure gauge (22). The concentrated sample is obtained by the concentrated liquid discharge pump 15 from the lower portion of the concentrated cone 9 '. At this time, the water vapor generated in the concentrated liquid is condensed in the coil heat exchanger 12 and discharged to the condensate pump 17. The latent heat of evaporation required for concentration is collected in the condenser of the heat pump 1 and collected in the heated water tank 5 and sent to the sample heating heat exchanger 13 by the heated water circulation pump 20 and the sample tank 21. ) By heating the sample supplied from the sample heating heat exchanger (13) to obtain evaporative heat as the amount of sample heating, and by mounting the heat exchanger (10) outside the rotary condenser (9 ') to heat the water circulation pump (19). You get it by driving.

또한 수증기 응축에 필요한 냉각수는 열펌프(1)의 증발기에서 얻어진 냉각수탱크(6)에 냉각수 순환펌프(18)를 운전시켜 수증기가 열교환기인 수증기응축기(12)에서 응축수가 얻어지게 된다.In addition, the cooling water required for steam condensation is obtained by operating the cooling water circulation pump 18 in the cooling water tank 6 obtained by the evaporator of the heat pump 1 to obtain condensed water in the steam condenser 12 in which the steam is a heat exchanger.

위의 방식에 의한 농축기 증발온도는 온도계(23)로 15~30℃범위의 저온에서 일정하게 농축을 할 수 가 있어 제품의 품질이 대단히 우수하게 된다.Concentrator evaporation temperature according to the above method can be constantly concentrated at a low temperature of 15 ~ 30 ℃ range with a thermometer (23) is very excellent product quality.

Claims

The heat provided from the refrigerant condenser 2 of the heat pump 1 is provided to the sample heat exchanger 13 through the heated water tank 5, and at the same time, the sample is transferred to the heat exchanger 13 to be heated and heated. The sample is sent to the rotary condenser 9 'and at the same time, the heating water by the heated water tank 5 is circulated to the heated water heat exchanger 10 formed outside the rotary condenser 9' 'to evaporate the sample. The steam in the condensation cone 9 passes through the steam condenser 12 outside and circulates the cooling water obtained from the heat pump 1 inside the steam condenser 12 to condense the steam of the condensation cone 9. Low temperature concentration method using a heat pump to obtain a high quality concentrate.