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41. 发明专利

JPH0783581A DIRECT CONTACT TYPE HEAT EXCHANGER FOR FUEL CELL 失效
公开(公告)号：JPH0783581A
公开(公告)日：1995-03-28
申请号：JP22735693
申请日：1993-09-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAMEYAMA TOSHIO , ISHIZAWA MAKI , IIDA SHIGEMI , KITADA SHUICHI , OSHIMA KAZUO , UEKUSA TSUNEO
IPC分类号： F28C1/02 , H01M8/04
摘要： PURPOSE:To provide a direct contact type heat exchanger for a fuel cell for recovering heat from discharged gas of the fuel cell and recovering heat from cooling medium such as a blow-down water from the fuel cell. CONSTITUTION:In a fuel cell system having as its composing elements a fuel cell 1 having a water vapor separator 22 and a heat exchanger 3, an outlet 10 of a blow-down water supplying pipe 20 extending from the water vapor separator 22 to the heat exchanger 3 facing at the heat exchanger 3 is arranged at a lower position than a position of the inlet of the supplemental water supplying pipe 18 at the heat exchanger 3 extending from the heat exchanger 3 to the water vapor separator 22.

42. 发明专利

JPH0660899A DIRECT CONTACT TYPE HEAT EXCHANGER FOR FUEL CELL 失效
公开(公告)号：JPH0660899A
公开(公告)日：1994-03-04
申请号：JP21047692
申请日：1992-08-06
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAMEYAMA TOSHIO , OSHIMA KAZUO , UEKUSA TSUNEO , KITADA SHUICHI
IPC分类号： F28C3/06 , H01M8/04 , H01M8/06
摘要： PURPOSE:To reduce a heat loss and simplify a piping work by undertaking both heat recovery from the exhaust gas of a fuel cell for use as a heat source for an absorption refrigerator, and condensed water collection for supplying to cell cooling water, using a single direct contact type heat exchanger. CONSTITUTION:Exhaust gas from a fuel cell 1 is introduced to a heat exchanger 3 and rises to enter a heat exchange section 12. On the other hand, heat recovery water flowing from an absorption refrigerator 16 recovers heat in direct contact with exhaust gas at the heat exchange section 12 in the form of a counterflow via a heat recovering and sprinkling means 13. Heat recovery water accumulated in a heat recovery water storage section 14 is used as a heat source for the absorption refrigerator 16. Then, low temperature exhaust gas after heat exchange with the heat recovery water, further rises through the heat exchanger 3 and enters a heat exchange section 4. On the other hand, cooling water flowing from a cooling tower 9 recovers heat in direct contact with the low temperature exhaust gas at the heat exchange section 4 in the form of a counterflow via a cooling and sprinkling means 5. Then, cooling water accumulated in the section 7, together with exhaust gas condensed water, is supplied to a distilled water tank 19 via a distilled water feed pipe 20.

43. 发明专利

JPH0582150A CONDENSER FOR FUEL CELL 失效
公开(公告)号：JPH0582150A
公开(公告)日：1993-04-02
申请号：JP24087791
申请日：1991-09-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ADACHI HIROSHI , OSHIMA KAZUO , UEKUSA TSUNEO , KAMEYAMA TOSHIO
IPC分类号： H01M8/04 , H01M8/06
摘要： PURPOSE:To control a temperature of exhaust gas getting into a condenser for a fuel cell to be lower than a temperature at which fleon refrigerant is decomposed in the condenser for the fuel cell which recovers condensed water from exhaust gas of the fuel cell using the fleon refirgerant. CONSTITUTION:A condenser 20 for a fuel cell for recovering condensed water from exhaust gas of a fuel cell 2 is provided in an exhaust passage for the fuel cell 2, and this condenser 20 for the fuel cell is provided with an exhaust gas intake port, an exhaust gas cooling air intake port, and an exhaust gas cooling air intake port opening/closing plate 22. This exhaust gas cooling air intake port opening/closing plate 22 is opened and closed based on a temperature of the exhaust gas flowing into the condenser 20 for the fuel cell by a shape memory alloy 21 which transforms at a lower temperature than a temperature at which fleon refrigerant 25 is decomposed, and it is cooled by mixing intake air when the temperature is high, thereby the temperature of the exhaust gas is prevented from being more than set value.

44. 发明专利

JPH04155769A FUEL CELL 失效
公开(公告)号：JPH04155769A
公开(公告)日：1992-05-28
申请号：JP28081090
申请日：1990-10-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , OSHIMA KAZUO , MATSUSHIMA TOSHIO , NAKAO MASAKI , WARATANI SHISEI
IPC分类号： H01M8/04 , F25B27/02 , H01M8/00
摘要： PURPOSE:To increase the quantity of heat recovery by arranging separately a heat exchanger to carry out exhaust heat recovery from exhaust gas and a heat exchanger to carry out exhaust heat recovery from exhaust gas of a reformer to supply hydrogen to a fuel cell. CONSTITUTION:Mainly nitrogen, oxygen and water vapour approximately 5.25, 0.7, 1.40kmol/h, for example, are contained respectively in exhaust gas exhausted from a fuel cell body 1. Nitrogen, oxygen, carbon dioxide and water vapour are mainly contained in exhaust gas exhausted from a reformer 2, and approximately 1.32, 0.17, 0.44, 1.23kmol/h, for example, are contained respectively. In this way, with regard to partial pressure of water vapour, when the exhaust gas exhaust from the fuel cell body 1 is compared with that from the reformer 2, the partial pressure of the exhaust gas from the reformer 2 is higher than that from the fuel cell body 1. Thereby, by carrying out heat recovery independently without mixing both exhaust gas, so much heat can be recovered.

45. 发明专利

JPH01273973A HEAT MOTOR TYPE CONDENSING PRESSURE ADJUSTING VALVE 失效
公开(公告)号：JPH01273973A
公开(公告)日：1989-11-01
申请号：JP10269188
申请日：1988-04-27
申请人： NIPPON TELEGRAPH & TELEPHONE , HITACHI LTD , SAGINOMIYA SEISAKUSHO INC
发明人： NAKAO MASAKI , SANPEI MINORU , OSHIMA KAZUO , UEKUSA TSUNEO , SEKI OSAMU , YAMADA SHINICHIRO , KIMURA NORIMASA , IKEDA TADAAKI
IPC分类号： F16K31/68 , F25B41/06
摘要： PURPOSE:To prevent an abnormal heating of a heater and keep a normal condensing pressure of a freezing cycle by a method wherein the heater and a thermostat for shielding its current are arranged at a thermo-sensitive cylinder at a heating motor connected with a pressure chamber. CONSTITUTION:A heating motor H has at its center part a thermo-sensitive cylinder 11 connected to a pressure chamber 7 through a capillary tube 10. As a condensing pressure is decreased, a heater 12 may generate heat, a pressure within a pressure chamber 7 is increased through the thermo-sensitive cylinder 11, a valve member 2 is moved toward a C' side against a spring 3. A high pressure is guided directly to an outlet R to increase a condensing pressure. In case that an abnormal heating is generated in the heater 12, the current flowing to the heater 12 is shielded by a thermostat 14. An entire system is shielded by a thermal insulating layer 16, an influence of surrounding temperature is avoided and the valve body 2 is operated in proportion to a heating calorie of the heater 12.

46. 发明专利

JPH01222165A REFRIGERATING DEVICE 失效
公开(公告)号：JPH01222165A
公开(公告)日：1989-09-05
申请号：JP4911388
申请日：1988-03-01
申请人： NIPPON TELEGRAPH & TELEPHONE , DAIKIN IND LTD
发明人： NAKAO MASAKI , SANPEI MINORU , OSHIMA KAZUO , UEKUSA TSUNEO , HIGUCHI AKIO , YOSHIDA MASAHIRO , KITANO MOICHI , KONDO ISAO , TAMAKOSHI KOICHIRO
IPC分类号： F25B6/02 , F25B1/00
摘要： PURPOSE:To make it possible to obtain a specified degree of superheat and control said degree of superheat unaffected by the pressure at the inlet of an expansion valve no matter what load might be, by adjusting a valve opening of a motor-driven valve to a closed side and controlling a condensation pressure when a controlled degree of superheat exceeds a predetermined degree of superheat and said expansion valve is full-coated. CONSTITUTION:To a controller 7 is installed a condensation pressure control means which is designed to adjust a valve opening of a motor-driven valve 8 to a closed side and control condensation pressure when a controlled degree of superheat exceeds a predetermined degree of superheat alpha, and an expansion valve 4 is substantially full-closed. Even when the controlled degree of superheat exceeds the predetermined degree of superheat and the motor-driven expansion valve is substantially full-closed and the expansion valve 4 is unable to control the degree of superheat any more due to its lack of capacity, the motor-driven valve 8 is adjusted to a closed side so that the condensation pressure may be raised. This increased pressure acts on the inlet of the expansion valve 4 via a bypass pipe 9. As a result, the pressure gradient at the inlet and outlet of the expansion valve 4 is increased and maintained, thereby increasing the quantity of refrigerant to be supplied to a vaporizer 5 and lowering the controlled degree of superheat toward the predetermined degree of superheat. It is, therefore, possible to inhibit the condensation pressure to the minimum value required to obtain the predetermined degree of superheat and to improve an achievement coefficient as well.

47. 发明专利

JPS6325446A CONTROL OF AIR-CONDITIONING MACHINE 失效
公开(公告)号：JPS6325446A
公开(公告)日：1988-02-02
申请号：JP16813986
申请日：1986-07-18
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKAO MASAKI , OSHIMA KAZUO , UEKUSA TSUNEO
IPC分类号： F24F11/02 , F24F11/04
摘要： PURPOSE:To permit electric power necessary for the operation of an airconditioning machine to be minimized while exhibiting a proper cooling capacity, by a method wherein a control circuit for operating the air-conditioning machine so that the sum of an electric power consumption for a compressor and the electric power consumption for an indoor side fan is minimized upon operating the air-conditioning machine, is provided in the title machine. CONSTITUTION:An electric power consumption upon the stationary operation of an air- conditioning machine is measured, and the rotating number of an indoor side fan is increased by DELTAF. Next, a room temperature and an overheating degree after increasing the rotating number of the indoor fan by DELTAF are measured, and the measured values are compared with set values respectively to confirm a stationary operating condition while meeting with respective set values and measure the electric power consumption at that time. When the electric power consumption compared with the initially measured electric power consumption is reduced, the rotating number of the indoor fan is increased by DELTAF further. The electric power consumption is measured after the room temperature and the overheated degree have arrived at stationary conditions while meeting with respective set values, then, the measured values are compared with the electric power consumption measured at previous time. When it is decreased, the same operation is repeated further. When it is increased, the rotating number of the indoor side fan is reduced into a reverse direction to the increasing direction of a previous time, and the operation of the air-conditioning machine is controlled so that the electric power consumption is minimized.

48. 发明专利

JP2000215906A FUEL CELL POWER GENERATION PLANT 失效
公开(公告)号：JP2000215906A
公开(公告)日：2000-08-04
申请号：JP1446499
申请日：1999-01-22
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE , NTT POWER & BUILDING
发明人： TAKAHASHI MOTOHIRO , ISHIZAWA MAKI , YAMAMOTO MASAKI , OKADA SHIGERU , UEKUSA TSUNEO , WARATANI SHISEI
IPC分类号： H01M8/00 , H01M8/04
摘要： PROBLEM TO BE SOLVED: To extract high-temperature exhaust heat and low-temperature exhaust heat each having a level capable of operating a two-heat-source drive type absorption refrigerator by effectively recovering heat from exhaust gas and exhaust heat from a cell body. SOLUTION: This plant is equipped with: a fuel cell body 1 for feeding fuel gas to a fuel electrode and air to an air electrode and generating power by means of the electrochemical reaction between them; a reformer 3 for producing reformed gas and feeding it to the fuel electrode; an exhaust heat recovery heat exchanger 19 for recovering the exhaust heat included in fuel exhaust gas exhausted from the reformer 3 and air exhaust gas exhausted from the air electrode as hot water; a cooler 10 for cooling the cooling water 7 for cooling the fuel cell body 1; a steam separator 8 installed at the exit of the cooling water of the fuel cell body and separating the cell cooling water into steam and water; and a two-heat-source drive type absorption refrigerator 21 operated by feeding the hot water recovered in the exhaust heat recovery heat exchanger 19 and heated in the cooler 10, and the steam from the steam separator 8.

49. 发明专利

JP2000055444A AIR CONDITIONER 失效
公开(公告)号：JP2000055444A
公开(公告)日：2000-02-25
申请号：JP22455998
申请日：1998-08-07
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , CHIBA KAZUO , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner in which appropriate temperature/humidity control can be exhibited fully by reheat function while performing energy saving operation at an efficiency as high as possible when the outer air temperature is low in winter season, or the like. SOLUTION: The air conditioner comprises a three-way valve 21 (or an outdoor fan 8) for regulating the refrigerant pressure (=condensation pressure) of a condenser 12. The three-way valve (or an outdoor fan 8) is operated in the direction for increasing the condensation pressure when an expansion valve 13 is opened fully based on degree of superheat control due to outer air temperature drop, compression ratio of the compressor 11 decreases below a lowest allowable ratio, or the reheating quantity of a reheater 16 decreases below a specified level.

50. 发明专利

JPH10132355A AIR CONDITIONING SYSTEM 失效
公开(公告)号：JPH10132355A
公开(公告)日：1998-05-22
申请号：JP28999396
申请日：1996-10-31
申请人： NTT FACILITIES KK , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , CHIBA KAZUO
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To provide an air conditioning system wherein heat storage operation with nighttime power source is ensured continuously operating a package air conditioner coping with heat emission from instruments installed in a computer room and a communication machine chamber, and stored heat is utilized for daytime cooling to reduce the running cost. SOLUTION: A plurality of package air conditioners are installed in a communication machine chamber in which a predetermined number of the machines used as spare machines have a heat storage function. In a night discount charge time zone of electric power the package air conditioner having an ice storage unit 7 is operated for storing heat while the package air conditioner not having the ice storage unit 7 performs cooling operation. In a time zone excepting the night discount charge time zone the package air conditioners having the ice storage unit 7 perform heat radiation operation, while the package air conditioners not having the ice storage unit 7 perform cooling operation.

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