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1. 发明专利

DE4201637C3 未知
公开(公告)号：DE4201637C3
公开(公告)日：1999-11-04
申请号：DE4201637
申请日：1992-01-22
申请人： HITACHI LTD
发明人： TAKAHASHI FUMIO , HARADA IWAO , FUJITANI YASUO , AIZAWA MICHIHIKO
IPC分类号： F28B1/02 , F25B37/00 , F25B39/04 , F28B1/00 , F28B9/10 , F28D7/00 , F28F1/32 , G21D1/02 , F25B43/04 , F01K11/02
摘要： A heat exchanger for condensing into liquid phase a vapor containing non-condensable gas components through heat exchange with a heat exchanging medium has a vessel having a vapor inlet for receiving the vapor containing the non-condensable gas components and a discharge port for the non-condensable gas components. The heat exchanger further has a tube nest disposed in the vessel and having a plurality of tubes through which the heat exchanging medium flows. The vapor containing non-condensable gas components flows towards the discharge port across the tube nest so as to be condensed into liquid phase through heat exchange with the heat exchanging medium flowing through the tubes, so that the non-condensable gas components are separated from the liquid phase and flow towards the discharge port. The tube nest is constructed to create a change in the dynamic pressure of flow of the vapor towards the discharge port to cause such a static pressure distribution in the heat exchanger that a lower static pressure is established in a region where the discharge port is provided than in a region where the vapor inlet is provided.

2. 发明专利

DE4201637C2 未知
公开(公告)号：DE4201637C2
公开(公告)日：1996-01-18
申请号：DE4201637
申请日：1992-01-22
申请人： HITACHI LTD
发明人： TAKAHASHI FUMIO , HARADA IWAO , FUJITANI YASUO , AIZAWA MICHIHIKO
IPC分类号： F28B1/02 , F25B37/00 , F25B39/04 , F28B1/00 , F28B9/10 , F28D7/00 , F28F1/32 , G21D1/02 , F01K11/02 , F01K17/06 , F22D1/32 , F25B15/00 , F25B43/04
摘要： A heat exchanger for condensing into liquid phase a vapor containing non-condensable gas components through heat exchange with a heat exchanging medium has a vessel having a vapor inlet for receiving the vapor containing the non-condensable gas components and a discharge port for the non-condensable gas components. The heat exchanger further has a tube nest disposed in the vessel and having a plurality of tubes through which the heat exchanging medium flows. The vapor containing non-condensable gas components flows towards the discharge port across the tube nest so as to be condensed into liquid phase through heat exchange with the heat exchanging medium flowing through the tubes, so that the non-condensable gas components are separated from the liquid phase and flow towards the discharge port. The tube nest is constructed to create a change in the dynamic pressure of flow of the vapor towards the discharge port to cause such a static pressure distribution in the heat exchanger that a lower static pressure is established in a region where the discharge port is provided than in a region where the vapor inlet is provided.

3. 发明专利

CA2059759C HEAT EXCHANGER FOR CONDENSING VAPOR INTO LIQUID PHASE, POWER GENERATING PLANT USING THE HEAT EXCHANGER AND ABSORPTION REFRIGERATOR USING THE HEAT EXCHANGER 未知
公开(公告)号：CA2059759C
公开(公告)日：1997-02-25
申请号：CA2059759
申请日：1992-01-21
申请人： HITACHI LTD
发明人： TAKAHASHI FUMIO , HARADA IWAO , FUJITANI YASUO , AIZAWA MICHIHIKO
IPC分类号： F28B1/02 , F25B37/00 , F25B39/04 , F28B1/00 , F28B9/10 , F28D7/00 , F28F1/32 , G21D1/02
摘要： A heat exchanger for condensing into liquid phase a vapor containing non-condensable gas components through heat exchange with a heat exchanging medium has a vessel having a vapor inlet for receiving the vapor containing the non-condensable gas components and a discharge port for the non-condensable gas components. The heat exchanger further has a tube nest disposed in the vessel and having a plurality of tubes through which the heat exchanging medium flows. The vapor containing non-condensable gas components flows towards the discharge port across the tube nest so as to be condensed into liquid phase through heat exchange with the heat exchanging medium flowing through the tubes, so that the non-condensable gas components are separated from the liquid phase and flow towards the discharge port. The tube nest is constructed to create a change in the dynamic pressure of flow of the vapor towards the discharge port to cause such a static pressure distribution in the heat exchanger that a lower static pressure is established in a region where the discharge port is provided than in a region where the vapor inlet is provided.

4. 发明专利

DE4201637A1 未知
公开(公告)号：DE4201637A1
公开(公告)日：1992-08-06
申请号：DE4201637
申请日：1992-01-22
申请人： HITACHI LTD
发明人： TAKAHASHI FUMIO , HARADA IWAO , FUJITANI YASUO , AIZAWA MICHIHIKO
IPC分类号： F28B1/02 , F25B37/00 , F25B39/04 , F28B1/00 , F28B9/10 , F28D7/00 , F28F1/32 , G21D1/02
摘要： A heat exchanger for condensing into liquid phase a vapor containing non-condensable gas components through heat exchange with a heat exchanging medium has a vessel having a vapor inlet for receiving the vapor containing the non-condensable gas components and a discharge port for the non-condensable gas components. The heat exchanger further has a tube nest disposed in the vessel and having a plurality of tubes through which the heat exchanging medium flows. The vapor containing non-condensable gas components flows towards the discharge port across the tube nest so as to be condensed into liquid phase through heat exchange with the heat exchanging medium flowing through the tubes, so that the non-condensable gas components are separated from the liquid phase and flow towards the discharge port. The tube nest is constructed to create a change in the dynamic pressure of flow of the vapor towards the discharge port to cause such a static pressure distribution in the heat exchanger that a lower static pressure is established in a region where the discharge port is provided than in a region where the vapor inlet is provided.

5. 发明专利

JPH11287527A ABSORPTION TYPE COLD/HOT WATER GENERATOR 失效
公开(公告)号：JPH11287527A
公开(公告)日：1999-10-19
申请号：JP5661499
申请日：1999-03-04
申请人： HITACHI LTD
发明人： URAKI YASUO , KABETA AKIRA , NAKAO TAKESHI , AIZAWA MICHIHIKO , OUCHI TOMIHISA
IPC分类号： F24F11/02 , F25B15/00
摘要： PROBLEM TO BE SOLVED: To provide an absorption type cold/hot water generator used in a multi type absorption air-conditioning system to perform comfortable air-conditioning and improve facility. SOLUTION: In an absorption cold/hot water generator, a weak solution dilluted by a refrigerant is heated by a high temperature regenerator 25 and a low temperature regenerator 24 to generate refrigerant steam and after, during cooling, refrigerant steam is cooled and condensed by a cooling means, the steam is evaporated by an evaporator 21. Further, during heating, cold/hot water is heated by using refrigerant steam by the evaporator 21 to produce hot water. A refrigerant to cool or heat cold/hot water by the evaporator 21 is absorbed or mixed in a strong solution generated during the generation of refrigerant steam by an absorber 22 to produce a weak solution, which is returned again to the high temperature regenerator 25 and the low temperature regenerator 24. The evaporator 21 and the absorber 22 are arranged in parallel, the condenser 23 and the low temperature regenerator 24 are arranged on the upper side of the evaporator 23 and the absorber 22. Further, the high temperature regenerator 25 is arranged in parallel to the evaporator 21 and the absorber 22. The evaporator apparatus 21 and the absorber 22, and the condenser 23 and the low temperature regenerator 24 are partitioned from each other by a partition plate 45. The partition plate 45 is bent and protruded between the condenser 23 and the low temperature regenerator 24 to form a heat insulation space.

6. 发明专利

JPH10306957A ABSORPTION REFRIGERATOR 失效
公开(公告)号：JPH10306957A
公开(公告)日：1998-11-17
申请号：JP13293998
申请日：1998-05-15
申请人： HITACHI LTD
发明人： NISHINO YOSHITAKA , SAWA TOSHIO , NAKAO TAKESHI , AIZAWA MICHIHIKO , YOKOSE KENJI
IPC分类号： F25B37/00 , F25B43/04
摘要： PROBLEM TO BE SOLVED: To reduce a pressure loss of vapor in an absorber of an absorption refrigerator and enable a smooth discharge of non condensible gas in the absorber. SOLUTION: An absorption refrigerator comprises an evaporator which generates vapor by evaporating liquid on the surface of a plurality of heat transfer pipes and an absorber which makes an absorbent on the surface of heat transfer pipes absorb the vapor fed into the absorber. In this absorber, on a cross section of the heat transfer pipes 1 as seen from a longitudinal direction of the transfer pipes 1, vapor channels 2 are formed between a wall surface and the neighboring heat transfer pipes 1 along the wall surface. A gas extraction port 7 is disposed in a set of heat tranfer pipes 1 arranged in a grid array, wherein the surface distance L1 between the heat transfer pipe in a horizontal direction is set to not less than 10 mm, while the surface distance L2 between the heat transfer pipe in a vertical direction is set to not more than 5 mm.

7. 发明专利

JPH0552441A METHOD AND DEVICE FOR CONTROLLING ABSORPTION TYPE HEATER COOLER 失效
公开(公告)号：JPH0552441A
公开(公告)日：1993-03-02
申请号：JP23732891
申请日：1991-08-23
申请人： HITACHI LTD
发明人： KUSHIMA HIROSHI , OUCHI TOMIHISA , NISHIGUCHI AKIRA , KOSEKI YASUO , AIZAWA MICHIHIKO , YODA HIROAKI , NAKAO TAKESHI
IPC分类号： F25B15/00 , F25B49/04
摘要： PURPOSE:To realize an individual air-conditioning system by using an absorption type air-conditioner which facilitates control of the capacity. CONSTITUTION:Delicate control of input of the heat of a high temperature regenerator 1 to a burner 19 is effected through on/off control even during low load operation, and a cooling water temperature is controlled according to the concentration of a refrigerant in an absorber 5. This method enables the free change of the freezing capacity of an absorption type air-conditioner in a range of from 0% to l00% without a fear of a refrigerant being frozen.

8. 发明专利

JPH0471142B2 失效
公开(公告)号：JPH0471142B2
公开(公告)日：1992-11-12
申请号：JP20904583
申请日：1983-11-09
申请人： HITACHI LTD
发明人： AIZAWA MICHIHIKO
IPC分类号： F25B15/00

9. 发明专利

JPH04309756A MIXED ABSORBING LIQUID AND ABSORPTION HEAT EXCHANGER USING THE SAME LIQUID 失效
公开(公告)号：JPH04309756A
公开(公告)日：1992-11-02
申请号：JP7540291
申请日：1991-04-08
申请人： HITACHI LTD
发明人： KOSEKI YASUO , KOIKE SEIJI , AIZAWA MICHIHIKO , YAMADA AKIRA
IPC分类号： F25B15/00 , C09K5/04
摘要： PURPOSE:To embody the cooling operation by air cooling process or the heating operation by a heat pump using outside air as a heating source by a method wherein potassium salt such as potassium chloride is added in a specific proportion to the absorbing liquid consisting of lithium bromide as a main absorbing agent for use in an absorption heat exchange device. CONSTITUTION:In the cooling operation of an absorption heat exchange device, e.g. absorption air conditioning device, the water 26 being refrigerant is sprayed into a heat transfer pipe 100 of an evaporator 1 by a refrigerant pump 7 and, by the latent heat produced by the evaporation of the water 26, a cooling water 10 in the heat transfer pipe 100 is chilled and the cooling water 10 thus chilled is used for the cooling. The water vapor 25 also produced enters an absorber 2 and is absorbed by a mixed absorbing liquid 20 sprayed into a heat transfer pipe 101. The absorbing liquid 20 diluted by absorbing the water vapor 25 is sent into a heat exchanger 3 by an absorbing liquid pump 8 to be preheated, a part of the absorbing liquid is sent into a low temperature regenerator 5 and the remainder is sent into a high temperature regenerator 4. The absorbing liquid 20 consists of lithium bromide as a main absorbing agent with potassium salt added thereto.

10. 发明专利

JPH0391665A AIR BLEEDER 失效
公开(公告)号：JPH0391665A
公开(公告)日：1991-04-17
申请号：JP22438289
申请日：1989-09-01
申请人： HITACHI LTD
发明人： AIZAWA MICHIHIKO
IPC分类号： F25B43/04
摘要： PURPOSE:To make it possible to extract a noncondensible gas outside effectively and simplify the device and its components by installing a gas extraction tank whose surface is partially cooled with refrigerant a cold water, and a gas extraction pipeline which connects the gas extraction tank with a vapor phase section on the down stream side of a condenser. CONSTITUTION:A gas extraction tank 21 has its one side placed in contact with the surface of a refrigerant tank 4 or shares its side with the tank 4. The tank 21 is always cooled with a refrigerant solution which flows down along the wall of a vaporizer 1. Therefore, the internal pressure in the extraction tank 21 can be kept to a lower value substantially near to the internal pressure in the refrigerant tank 4. A gas extraction pipeline 22 is connected between a lower manifold 17 of an air-cooled condenser 15 and the gas extraction tank 21. Therefore, the noncondensible gas in the lower manifold 17 flows into the extraction gas tank 21 with vapor due to the difference between the pressures where only the vapor content is condensed and liquefied while the noncondensible gas is gradually built up inside the gas extraction tank 21. This construction makes it possible to extract the noncondensible gas in an absorption type refrigerator effectively outside and provide a gas extraction unit which is simple in structure and highly reliable in performance.

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