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1. 发明专利

FR2653863B1 未知
公开(公告)号：FR2653863B1
公开(公告)日：1994-05-06
申请号：FR9012839
申请日：1990-10-17
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER CO LTD
发明人： MIYAUCHI SHUHEI , IRIE TOSHIMASA , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , URATA YUKITOSHI , ISHIKAWA TAMOTSU , KAWABATA MASAYUKI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04
摘要： A heat pump system comprising a heat pump cycle of refrigerant which includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, the condenser 2 further including a once-through path 6, 7 of fluid to be heated (e.g. water) and being a counterflow-type heat exchanger, the condenser being so operated that the refrigerant is supercooled in a supercooling degree of not less than 20% of the difference between a saturation temperature of the refrigerant and an inlet temperature of the fluid. The heat pump cycle may be a single cycle or a binary cycle (Fig. 1a) comprising a high- temperature size (1, 2, 3, 5) heat pump cycle of a high boiling refrigerant and a low-temperature side (11, 13, 14, 15) heat pump cycle of a low boiling refrigerant. The evaporator may include a once-through path for fluid to be cooled (e.g. water). Hot fluid and/or cold fluid are thus discharged. In particular, high quality hot water higher than an inlet temperature of water by 30-100 DEG C can be obtained.

2. 发明专利

AU610459B1 HEAT PUMP SYSTEM 未知
公开(公告)号：AU610459B1
公开(公告)日：1991-05-16
申请号：AU5987790
申请日：1990-07-26
申请人： NISHIYODO AIR CONDITIONER CO LTD , OSAKA PREFECTURE
发明人： MIYAUCHI SHUHEI , ISHIKAWA TAMOTSU , IRIE TOSHIMASU , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , URATA YUKITOSHI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04 , F25B30/00
摘要： A heat pump system comprising a heat pump cycle of refrigerant which includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, the condenser 2 further including a once-through path 6, 7 of fluid to be heated (e.g. water) and being a counterflow-type heat exchanger, the condenser being so operated that the refrigerant is supercooled in a supercooling degree of not less than 20% of the difference between a saturation temperature of the refrigerant and an inlet temperature of the fluid. The heat pump cycle may be a single cycle or a binary cycle (Fig. 1a) comprising a high- temperature size (1, 2, 3, 5) heat pump cycle of a high boiling refrigerant and a low-temperature side (11, 13, 14, 15) heat pump cycle of a low boiling refrigerant. The evaporator may include a once-through path for fluid to be cooled (e.g. water). Hot fluid and/or cold fluid are thus discharged. In particular, high quality hot water higher than an inlet temperature of water by 30-100 DEG C can be obtained.

3. 发明专利

DE4001525A1 未知
公开(公告)号：DE4001525A1
公开(公告)日：1990-08-02
申请号：DE4001525
申请日：1990-01-19
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： IRIE TOSHIMASA , ISODA TORU , MIYAUCHI SHUHEI , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , KAWABATA MASAYUKI , ISHIKAWA TAMOTSU , URATA YUKITOSHI
IPC分类号： F24F5/00 , F24H4/04 , F25B29/00 , F25B40/00
摘要： A heat pump capable of simultaneously supplying cold and hot fluids comprises a refrigeration cycle including a compressor 1, a condenser 2, an evaporator 4 and expansion valves 3; a path for a fluid to be heated connecting from a feed inlet 15 of the fluid via the condenser to a hot-fluid outlet 12; and a path for a fluid to be cooled connecting from a feed inlet 16 of the fluid via the evaporator 4 to a cold-fluid outlet 13. A refrigerant liquid-gas heat exchanger 11 is interposed in the refrigeration cycle to cause heat exchange between the liquid refrigerant and gaseous refrigerant in countercurrent flow. Both paths for the fluid to be heated and the fluid to be cooled are constituted as a once-through path. In the condenser, the refrigerant and the fluid to be heated are passed in countercurrent flow. Thus, a short rise time of operation, and a higher-temperature hot fluid and a lower temperature cold fluid than usual are obtained.

4. 发明专利

DE4026699A1 未知
公开(公告)号：DE4026699A1
公开(公告)日：1991-05-08
申请号：DE4026699
申请日：1990-08-23
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： MIYAUCHI SHUHEI , IRIE TOSHIMASA , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , URATA YUKITOSHI , ISHIKAWA TAMOTSU , KAWABATA MASAYUKI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04
摘要： A heat pump system comprising a heat pump cycle of refrigerant which includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, the condenser 2 further including a once-through path 6, 7 of fluid to be heated (e.g. water) and being a counterflow-type heat exchanger, the condenser being so operated that the refrigerant is supercooled in a supercooling degree of not less than 20% of the difference between a saturation temperature of the refrigerant and an inlet temperature of the fluid. The heat pump cycle may be a single cycle or a binary cycle (Fig. 1a) comprising a high- temperature size (1, 2, 3, 5) heat pump cycle of a high boiling refrigerant and a low-temperature side (11, 13, 14, 15) heat pump cycle of a low boiling refrigerant. The evaporator may include a once-through path for fluid to be cooled (e.g. water). Hot fluid and/or cold fluid are thus discharged. In particular, high quality hot water higher than an inlet temperature of water by 30-100 DEG C can be obtained.

5. 发明专利

FR2642152A1 未知
公开(公告)号：FR2642152A1
公开(公告)日：1990-07-27
申请号：FR9000701
申请日：1990-01-22
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： IRIE TOSHIMASA , ISODA TORU , MIYAUCHI SHUHEI , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , KAWABATA MASAYUKI , ISHIKAWA TAMOTSU , URATA YUKITOSHI
IPC分类号： F24F5/00 , F24H4/04 , F25B29/00 , F25B40/00
摘要： PURPOSE:To make it possible to supply hot water or cold water extremely in a short time by heat exchanging liquefied refrigerant with gasified refrigerant perfectly in an opposed current, installing a heated fluid penetration passage to a condenser, and a cooled fluid penetration passage to a vaporizer respectively, and making heated fluid refrigerant inside the vaporizer to flow counter. CONSTITUTION:A refrigerant liquefied gas heat exchanger 11 is installed in an attempt to heat exchange liquefied refrigerant from the outlet of a condenser 2 to an expansion valve 3 with gasified refrigerant from a vaporizer 4 to a compressor 1. The compressor 1, when driven, raises insulation compressed enthalpy i1' to i2'. Then, the refrigerant is heat exchanged with heated hot water in the next condenser 2, cooled under a constant pressure state, and turns into liquefied refrigerant. When further cooled, i3' under an excess cooling state is obtained. The route of heated hot water is formed based on an once through flow. Moreover, heat exchange is made with the refrigerant in a counter flow. Therefore, the refrigerant is cooled by fresh heated hot water constantly supplied, which equalizes the logarithmic mean temperature difference of the both with a lager value. Moreover, as for the outlet of a refrigerant condenser 2, excess cooling can be more effective by the heat exchange made by the heated hot water which flows in at an ambient temperature.

6. 发明专利

GB2237625B Heat pump system 未知
公开(公告)号：GB2237625B
公开(公告)日：1994-06-22
申请号：GB9016544
申请日：1990-07-27
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： MIYAUCHI SHUHEI , IRIE TOSHIMASA , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , URATA YUKITOSHI , ISHIKAWA TAMOTSU , KAWABATA MASAYUKI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04
摘要： A heat pump system comprising a heat pump cycle of refrigerant which includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, the condenser 2 further including a once-through path 6, 7 of fluid to be heated (e.g. water) and being a counterflow-type heat exchanger, the condenser being so operated that the refrigerant is supercooled in a supercooling degree of not less than 20% of the difference between a saturation temperature of the refrigerant and an inlet temperature of the fluid. The heat pump cycle may be a single cycle or a binary cycle (Fig. 1a) comprising a high- temperature size (1, 2, 3, 5) heat pump cycle of a high boiling refrigerant and a low-temperature side (11, 13, 14, 15) heat pump cycle of a low boiling refrigerant. The evaporator may include a once-through path for fluid to be cooled (e.g. water). Hot fluid and/or cold fluid are thus discharged. In particular, high quality hot water higher than an inlet temperature of water by 30-100 DEG C can be obtained.

7. 发明专利

GB2237625A Heat pump system 未知
公开(公告)号：GB2237625A
公开(公告)日：1991-05-08
申请号：GB9016544
申请日：1990-07-27
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： MIYAUCHI SHUHEI , IRIE TOSHIMASA , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIRO , OGATA MASAMI , URATA YUKITOSHI , ISHIKAWA TAMOTSU , KAWABATA MASAYUKI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04
摘要： A heat pump system comprising a heat pump cycle of refrigerant which includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, the condenser 2 further including a once-through path 6, 7 of fluid to be heated (e.g. water) and being a counterflow-type heat exchanger, the condenser being so operated that the refrigerant is supercooled in a supercooling degree of not less than 20% of the difference between a saturation temperature of the refrigerant and an inlet temperature of the fluid. The heat pump cycle may be a single cycle or a binary cycle (Fig. 1a) comprising a high- temperature size (1, 2, 3, 5) heat pump cycle of a high boiling refrigerant and a low-temperature side (11, 13, 14, 15) heat pump cycle of a low boiling refrigerant. The evaporator may include a once-through path for fluid to be cooled (e.g. water). Hot fluid and/or cold fluid are thus discharged. In particular, high quality hot water higher than an inlet temperature of water by 30-100 DEG C can be obtained.

8. 发明专利

CA2022125A1 HEAT PUMP SYSTEM 未知
公开(公告)号：CA2022125A1
公开(公告)日：1991-05-03
申请号：CA2022125
申请日：1990-07-27
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： MIYAUCHI SHUHEI , IRIE TOSHIMASA , ISODA TOHRU , IMOTO TAIZO , FUJISHIMA YUKIO , HATANO YASUHIO , OGATA MASAMI , URATA YUKITOSHI , ISHIKAWA TAMOTSU , KAWABATA MASAYUKI
IPC分类号： F25B1/00 , F25B7/00 , F25B30/02 , F25B39/02 , F25B39/04 , F25B29/00
摘要： A heat pump and a method for operating a heat pump having at least one circuit for circulation of a refrigerant, said circuit comprising a compressor, a condenser as a hightemperature heat output means, an expansion valve and a lowtemperature heat output means, said method comprising the steps of employing, as the condenser, a counterflow heat exchanger having a once-through flow path and a concentrical double-tube structure, passing a fluid to be heated and a refrigerant to be cooled through the condenser in absolute countercurrent flow with each other, withdrawing a heated fluid and a cooled refrigerant from the condenser and operating said condenser to obtain a supercool degree such that the following relationship is satisfied: supercool degree 0.4 ? saturated refrigerant temperature inlet temperature of fluid to be heated wherein supercool degree is defined as the temperature difference between the saturated refrigerant temperature and the outlet temperature of the refrigerant and the temperature difference between the saturated refrigerant temperature and the inlet temperature of the fluid to be heated is greater than or equal to 35.degree.C, thereby enabling a high temperature hot fluid to be discharged with a large temperature difference from its inlet temperature.

9. 发明专利

AU606542B2 AND HOT FLUIDS 未知
公开(公告)号：AU606542B2
公开(公告)日：1991-02-07
申请号：AU4863190
申请日：1990-01-19
申请人： OSAKA PREFECTURE
发明人： IRIE TOSHIMASU , ISODA TOHRU , MIYAUCHI SHUHEI , IMOTO TAIZO , FUJISHIMA YUKIO
IPC分类号： F24F5/00 , F24H4/04 , F25B29/00 , F25B40/00
摘要： PURPOSE:To make it possible to supply hot water or cold water extremely in a short time by heat exchanging liquefied refrigerant with gasified refrigerant perfectly in an opposed current, installing a heated fluid penetration passage to a condenser, and a cooled fluid penetration passage to a vaporizer respectively, and making heated fluid refrigerant inside the vaporizer to flow counter. CONSTITUTION:A refrigerant liquefied gas heat exchanger 11 is installed in an attempt to heat exchange liquefied refrigerant from the outlet of a condenser 2 to an expansion valve 3 with gasified refrigerant from a vaporizer 4 to a compressor 1. The compressor 1, when driven, raises insulation compressed enthalpy i1' to i2'. Then, the refrigerant is heat exchanged with heated hot water in the next condenser 2, cooled under a constant pressure state, and turns into liquefied refrigerant. When further cooled, i3' under an excess cooling state is obtained. The route of heated hot water is formed based on an once through flow. Moreover, heat exchange is made with the refrigerant in a counter flow. Therefore, the refrigerant is cooled by fresh heated hot water constantly supplied, which equalizes the logarithmic mean temperature difference of the both with a lager value. Moreover, as for the outlet of a refrigerant condenser 2, excess cooling can be more effective by the heat exchange made by the heated hot water which flows in at an ambient temperature.

10. 发明专利

GB2228560A Heat pumps capable of simultaneously supplying cold and hot fluids 未知
公开(公告)号：GB2228560A
公开(公告)日：1990-08-29
申请号：GB9001397
申请日：1990-01-22
申请人： OSAKA PREFECTURE , NISHIYODO AIR CONDITIONER
发明人： IRIE TOSHIMASA , ISODA TORU , MIYAUCHI SHUHEI , IMOTO TAIZO , FUJISHIMA YUKIO , YASUHIRO HATANO , OGATA MASAMI , KAWABATA MASAYUKI , ISHIKAWA TAMOTSU , URATA YUKITOSHI
IPC分类号： F24F5/00 , F24H4/04 , F25B29/00 , F25B40/00
摘要： PURPOSE:To make it possible to supply hot water or cold water extremely in a short time by heat exchanging liquefied refrigerant with gasified refrigerant perfectly in an opposed current, installing a heated fluid penetration passage to a condenser, and a cooled fluid penetration passage to a vaporizer respectively, and making heated fluid refrigerant inside the vaporizer to flow counter. CONSTITUTION:A refrigerant liquefied gas heat exchanger 11 is installed in an attempt to heat exchange liquefied refrigerant from the outlet of a condenser 2 to an expansion valve 3 with gasified refrigerant from a vaporizer 4 to a compressor 1. The compressor 1, when driven, raises insulation compressed enthalpy i1' to i2'. Then, the refrigerant is heat exchanged with heated hot water in the next condenser 2, cooled under a constant pressure state, and turns into liquefied refrigerant. When further cooled, i3' under an excess cooling state is obtained. The route of heated hot water is formed based on an once through flow. Moreover, heat exchange is made with the refrigerant in a counter flow. Therefore, the refrigerant is cooled by fresh heated hot water constantly supplied, which equalizes the logarithmic mean temperature difference of the both with a lager value. Moreover, as for the outlet of a refrigerant condenser 2, excess cooling can be more effective by the heat exchange made by the heated hot water which flows in at an ambient temperature.

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