专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

AP2014007443A0 Temperature control system 未知
公开(公告)号：AP2014007443A0
公开(公告)日：2014-02-28
申请号：AP2014007443
申请日：2012-08-02
申请人： JAPAN OIL GAS & METALS JOGMEC , JX NIPPON OIL & ENERGY CORP , INPEX CORP
发明人： MORITA KENTAROU , KATO YUZURU , YAMADA EIICHI
IPC分类号： F25D17/00 , B01J19/00 , C10G2/00 , F22B29/02 , F22D5/28

82. 发明专利

ES2150361B1 未知
公开(公告)号：ES2150361B1
公开(公告)日：2001-05-16
申请号：ES9801174
申请日：1998-06-05
申请人： DEUTSCH ZENTR LUFT & RAUMFAHRT
发明人： ECK MARKUS , GESKES PETER , PRASSER HORST-MICHAEL , KOSSOK NORBERT , SCHUETZ PETER
IPC分类号： G01F1/36 , G01F1/74 , G01F1/86 , F22D5/28
摘要： In order to develop a method for determining a measured value of a target measured variable of a multiphase flow, in particular, of a two-phase flow, wherein a value of a pressure of the multiphase flow is measured as a primary measured variable by means of a measuring device, with which a desired target measured variable of a multiphase flow, for example, the total mass flow can be determined in a simple manner from a primary measured variable, it is suggested in accordance with the invention that a time development of the primary measured variable be measured, the measured time development of the primary measured variable be compared with reference time developments of the primary measured variable, with which a respective reference value of the target measured variable is associated, and the measured value of the target measured variable be determined from the reference values of the target measured variable as a function of the result of the comparison of the measured development of the primary measured variable with the reference developments of the primary measured variable.

83. 发明专利

RU1793150C METHOD OF DEAERATOR HEATING CONTROL 未知
公开(公告)号：RU1793150C
公开(公告)日：1993-02-07
申请号：SU4878226
申请日：1990-10-29
申请人： PREDPR DONTEKHENERGO PROIZV OB
发明人： DAVYDOV NIKOLAJ E , LYULCHAK VADIM V , BORISEVICH VASILIJ N , KOLZHANOV VIKTOR F
IPC分类号： F22D5/28

84. 发明专利

AU565218B2 AUTOMATIC CONTROL SYSTEM FOR STEAM POWER PLANT 未知
公开(公告)号：AU565218B2
公开(公告)日：1987-09-10
申请号：AU5430186
申请日：1986-03-05
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SUGANO AKIRA
IPC分类号： F22B35/00 , F01K3/22 , F01K13/02 , F01K7/16 , F23N1/10 , F22D5/28 , F01K13/00
摘要： An automatic control system for a thermal power plan comprises a master controller (201) controlling a turbine in response to an externally applied load command signal, and producing a boiler input command signal by correcting the load command signal on the basis of the detected pressure of main steam generated from a boiler, and a water/steam process controller (202), a fuel process controller (203), a combustion process controller (204) and a draft process controller (205) to all of which the boiler input command signal is applied from the master controller. The process controllers (202, 203, 204, 205) apply control signals to equipments controlling a water/steam process, a fuel process. a combustion process and a draft process respectively among the terminal actuating equipments of the various parts of the boiler.

85. 发明专利

CA1152759A METHOD OF AND SYSTEM FOR CONTROLLING DRAIN WATER LEVEL OF FEED-WATER HEATER 未知
公开(公告)号：CA1152759A
公开(公告)日：1983-08-30
申请号：CA373749
申请日：1981-03-24
申请人： HITACHI LTD
发明人： MATSUSHIMA TOKUNORI , NAKAMURA SHOZO , IMAIZUMI TATSUO
IPC分类号： F22D1/32 , F01K7/34 , F22D5/26 , F22D5/28 , F22D5/30 , F22D11/06
摘要： Disclosed are improvements in a method of controlling the drain water level of a high pressure feed water heater for heating feed water with steam extracted from a turbine through the control of the opening of first and second water level control valves respectively provided in a first drain duct leading from the heater to a deaerator and a second drain duct leading from the heater to a low pressure feed water heater according to the detected drain water level and also a system for carrying out the control method. The state of drain in the neighborhood of the drain outlet of the high pressure feed water heater and the state of drain in the neighborhood of the drain inlet of the deaerator are detected, and the drain led to the high pressure feed water heater from a preceding stage or drain led out from the high pressure feed water heater is led to the deaerator prior to being subject to the effect of flashing according to the detected drain states, thus ensuring reliable control of the drain water level even at the time of the flashing in the neighborhood of the inlet of the first water level control valve and suppressing abnormal drain water level changes even in the case of a sudden change of the load or in the case of switching drain paths.

86. 发明专利

CA1120798A METHOD AND APPARATUS FOR FEEDING CONDENSATE TO A HIGH PRESSURE VAPOR GENERATOR 未知
公开(公告)号：CA1120798A
公开(公告)日：1982-03-30
申请号：CA313271
申请日：1978-10-12
申请人： CHEN THOMAS Y C
发明人： CHEN THOMAS Y C
IPC分类号： F22B35/00 , F22D5/30 , F22D5/34 , F22D11/00 , F22D11/06 , F22D5/28
摘要： METHOD AND APPARATUS FOR FEEDING CONDENSATE TO A HIGH PRESSURE VAPOR GENERATOR A mechanical arrangement to reduce drastically the energy consumption for pumping condensate to feed high pressure vapor generators for power generation, industrial processing, and heating systems. Involved is a method to pump the condensate into one condensate receiver located at the suction side of the condensate feed pump, and to bleed high pressure vapor from the vapor generator into the condensate receiver for imposing a pressure head upon the condensate therein to be approximately the same as that in the generator, and thus the pressure difference between the suction side and the discharge side of the pump is drastically reduced while pumping the condensate into the generator, with the result that the energy consumption of the pump is also drastically reduced. The receiver is full of high pressure vapor while the condensate therein is drained by the pump, and the high pressure vapor means energy. Further new methods are involved to reduce the vapor pressure in the receiver by returning the vapor to the system or to utilize it, as disclosed in the application. Generally speaking, at least two closed receivers operated in series are required for the method of restoring the vapor in the receivers to the generator after the condensate is pumped into the generator. The invented receivers are also designed for condensate healing with almost no energy consumption.

87. 发明专利

AU6871781A METHOD AND SYSTEM FOR CONTROLLING DRAIN WATER LEVEL OF FEED- WATER HEATER 未知
公开(公告)号：AU6871781A
公开(公告)日：1981-10-01
申请号：AU6871781
申请日：1981-03-25
申请人： HITACHI LTD
发明人： MATSUSHIMA T , NAKAMURA S , IMAIZUMI T
IPC分类号： F22D1/32 , F01K7/34 , F22D5/26 , F22D5/28 , F22D5/30 , F22D11/06

88. 发明专利

ES8102661A1 PERFECCIONAMIENTOS EN LOS SISTEMAS DE CONTROL PARA CONTROLARUNA PLANTA DE ENERGIA SOLAR 未知
公开(公告)号：ES8102661A1
公开(公告)日：1981-02-16
申请号：ES490893
申请日：1980-04-25
申请人： FRANCIA GIOVANNI
IPC分类号： F22B35/10 , F24J2/40 , F22G5/04 , F22D5/28
摘要： SISTEMA DE CONTROL DE UNA PLANTA DE ENERGIA SOLAR PARA PRODUCIR VAPOR SOBRECALENTADO. EL AGUA SE INTRODUCE LIQUIDA EN UN CONDUCTO (1) A TRAVES DE UNA ENTRADA (2), SALE COMO VAPOR SOBRECALENTADO POR UN EXTREMO (3), SUFRIENDO LAS FASES SUCESIVAS DE CALENTAMIENTO, EVAPORACION Y SOBRECALENTAMIENTO EN DIFERENTES PORCIONES DEL CONDUCTO (4) (5) (6). SE MANTIENE CONSTANTE LA TEMPERATURA A LA SALIDA MEDIANTE UN BUCLE DE CONTROL PRINCIPAL FORMADO POR UNA VALVULA DE CONTROL (V1) Y UN DISPOSITIVO DE CONTROL (R1), UN PRIMER BUCLE DE CONTROL AUXILIAR CON UNA VALVULA DE CONTROL (V2) Y UN DISPOSITIVO DE CONTROL (R2) Y UN SEGUNDO BUCLE DE CONTROL AUXILIAR CON UNA VALVULA (V3) Y UN DISPOSITIVO (R3).

89. 发明专利

ES490893A0 未知
公开(公告)号：ES490893A0
公开(公告)日：1981-02-16
申请号：ES490893
申请日：1980-04-25
申请人： FRANCIA GIOVANNI
IPC分类号： F22B35/10 , F24J2/40 , F22G5/04 , F22D5/28
摘要： A solar energy plant comprises a solar energy boiler having pre-heating, evaporation, and superheating stages, and a control system for maintaining constant the temperature and the volume of the superheated steam at the boiler outlet upon variations in the incident solary energy. The flow of water entering the boiler is divided into a main flow, passing through the preheating, evaporation and superheating stages, and a secondary water flow. A first part of the secondary water flow is injected directly into the evaporation stage and a second part of the secondary water flow is injected directly into the superheating stage. The control system includes valve means for varying the rate of flow of the main water flow, and the first and second parts of the secondary water flow such as to maintain constant the temperature of the output superheated steam.

90. 发明专利

NL161276B 未知
公开(公告)号：NL161276B
公开(公告)日：1979-08-15
申请号：NL7300703
申请日：1973-01-17
申请人： SULZER AG
IPC分类号： G01K17/00 , F22B35/10 , G01K17/06 , G01N25/60 , G06G7/56 , G06G7/12 , F22D5/28
摘要： The enthalpy calculating device includes a function generator which receives two signals, one representative of either the temperature or pressure property of the steam and the other representative of the enthalpy of the steam for the particular state of the steam. The function generator then emits an output signal corresponding to the other of the temperature or pressure property of the steam. The device also has a controller means composed of a comparator and integrator or an integral action controller. This latter means receives the output of the function generator and compares it with the actual value of the "other" property of the monitored steam. If there is a difference, the output of the controller means is corrected accordingly. This output serves not only as one of the input signals to the function generator but also as the output signal of the device to control the flow of feed water.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式