序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 Systems and methods for selectively producing steam from solar collectors and heaters for processes including enhanced oil recovery US14747998 2015-06-23 US09461229B2 2016-10-04 John Setel O'Donnell; Peter Emery von Behrens; Andras Nady; Stuart M. Heisler
Systems and methods for selectively producing steam from solar collectors and heaters, for processes including enhanced oil recovery. A system in accordance with a particular embodiment includes a water source, a solar collector that includes a collector inlet, a collector outlet, and a plurality of solar concentrators positioned to heat water passing from the collector inlet to the collector outlet, a fuel-fired heater, a steam outlet connected to an oil field injection well, and a water flow network coupled among the water source, the solar collector, the heater, and the steam outlet. The system can further include a controller operatively coupled to the water flow network and programmed with instructions that, when executed, direct at least one portion of the flow through the solar collector and the fuel-fired heater in a first sequence, and direct the at least one portion or a different portion of the flow through the solar collector and the fuel-fired heater in a second sequence different than the first sequence.
22 Optimizing multiple boiler plant systems with mixed condensing and non-condensing boilers US12493432 2009-06-29 US08479689B2 2013-07-09 Michael T. Pitonyak; Vincent S. Clerico; Pengpeng Pan
A system is provided to optimize multiple boiler plant systems having mixed condensing and non-condensing boiler groups. The system advantageously employs the independent groups of boilers depending on preset conditions under control of a system control unit. The preset conditions are checked against operating conditions of the boiler plant, and a system control unit controls which of the groups of boilers is the lead and which is secondary. In some instances, both groups of boilers may be utilized under heavy load. Further, effective switching between groups and within groups is also provided to minimize unnecessary repetitive boiler operation.
23 BOILER SYSTEM US13075506 2011-03-30 US20110303163A1 2011-12-15 Tomohiro OOKUBO; Takashi MORIMATSU; Shigeyoshi MATSUGI; Eiki SUZUKI
A boiler system has a boiler and a combustion amount control unit. The boiler includes a boiler body, a discharge unit, a discharge passage, a feedwater preheater and a feedwater temperature measuring unit. The feedwater preheater includes a heat exchanger. The feedwater temperature measuring unit measures a feedwater temperature that is the temperature of the feedwater flowing in the heat exchanger. The combustion amount control unit controls combustion amount in the boiler, and has a feedwater temperature threshold as a threshold relating to the feedwater temperature. The combustion amount control unit minimizes the combustion amount in the boiler in a case where the feedwater temperature measured by the feedwater temperature measuring unit is the feedwater temperature threshold or lower.
24 Coordination in multilayer process control and optimization schemes US10292708 2002-11-12 US20040093124A1 2004-05-13 Vladimir Havlena
Loads 1, 2, . . . , N are controlled by predicting a total energy requirement for the loads 1, 2, . . . , N at prediction points knull0, 1, 2, . . . , K, by allocating the total energy requirement to the loads 1, 2, . . . , N at prediction points knull0, 1, 2, . . . , K, by determining a dynamic energy demand requirement for each of the loads 1, 2, . . . , N at prediction points knull0, 1, 2, . . . , K based on the allocated energy requirements, and by controlling the loads 1, 2, . . . , N based on the dynamic energy demand requirements.
25 Method for servicing and maintaining heat supply equipment US09915575 2001-07-27 US06470837B2 2002-10-29 Toshihiro Kayahara; Kazuhiro Tachino; Yasuo Watanabe
In heat supply equipment provided with a plurality of maintenance object units, secure and prompt servicing and maintenance is implemented and a burden on a person in charge of managing the heat supply equipment is decreased. In a method for servicing and maintaining heat supply equipment based on a servicing and maintenance contract to perform specified servicing and maintenance of a maintenance object unit in heat supply equipment, which includes making a supervisory center for mediating request information from the heat supply equipment communicatable with the heat supply equipment via communication means, while making the supervisory center communicatable with service suppliers who perform the servicing and maintenance via the communication means, the method includes the steps of: receiving request information automatically transmitted from the heat supply equipment in the supervisory center; determining necessary servicing and maintenance works based on the request information received; selecting service suppliers who can perform the servicing and maintenance works; transmitting necessary information from the supervisory center to the service suppliers; and instructing the service suppliers to take measures based on the transmitted information.
26 Method for servicing and maintaining heat supply equipment US09915575 2001-07-27 US20020011220A1 2002-01-31 Toshihiro Kayahara; Kazuhiro Tachino; Yasuo Watanabe
In heat supply equipment provided with a plurality of maintenance object units, secure and prompt servicing and maintenance is implemented and a burden on a person in charge of managing the heat supply equipment is decreased. In a method for servicing and maintaining heat supply equipment based on a servicing and maintenance contract to perform specified servicing and maintenance of a maintenance object unit in heat supply equipment, which includes making a supervisory center for mediating request information from the heat supply equipment communicatable with the heat supply equipment via communication means, while making the supervisory center communicatable with service suppliers who perform the servicing and maintenance via the communication means, the method includes the steps of: receiving request information automatically transmitted from the heat supply equipment in the supervisory center; determining necessary servicing and maintenance works based on the request information received; selecting service suppliers who can perform the servicing and maintenance works; transmitting necessary information from the supervisory center to the service suppliers; and instructing the service suppliers to take measures based on the transmitted information.
27 Boiler control system US697899 1996-08-30 US5732664A 1998-03-31 Joseph W. Badeaux, Jr.
Apparati and methods for controlling the distribution of steam to a number of boilers, and for optimizing the performance of a steam boiler. The distribution of steam to the boilers is controlled by a master control system in communication with the boilers, steam subheaders, steam-flow sensors, a comparator module, a summer module, a main steam-supply header, and a pressure sensor in the main steam-supply header. The performance of an individual boiler is optimized by (a) maintaining a constant steam pressure in the boiler, (b) measuring the relative humidity of the air supply for fuel combustion, and (c) supplying and controlling the amount of steam to be mixed with the air supply to optimize the combustion process.
28 Microprocessor-based boiler controller US833067 1992-02-10 US5172654A 1992-12-22 Leo P. Christiansen
A microprocessor-based sequencer for a multiple boiler heating system which allows the plural boilers to operate in a base load mode whereby one or more boilers can be made to operate at their optimum operating points and as the heating demand changes, a swing boiler accommodates the change, leaving the other(s) at their Preferred Load value until the swing boiler can no longer satisfy the demand change. At this point, the sequencer adjusts the base load level away from the preferred load set-point.
29 Fluid system US235894 1988-10-11 US4938173A 1990-07-03 Kenneth E. Hopkinson
A fluid system for example for steam raising comprising a flow control device (20), means (28) to supply a head of fluid to the flow control device (20), and at least one fluid using means such as a flash boiler (12-14), the flow control device (20) comprising a chamber (48), an inlet (49) to the chamber from the fluid supply means (28), and an outlet (21-23) from the chamber (48), a valve means (40) associated with the outlet (21-23) operable to direct fluid from the outlet (21-23) either to the fluid using means (12-14) or to a relief means (43-45).
30 Boiler control US589445 1984-03-14 US4583497A 1986-04-22 Merle R. Likins, Jr.; Ronald J. LaSpisa
Boiler optimization is included in on-line control of parallel boilers by multiplying the total heat per unit time which must be supplied to all parallel boilers by the percentage of the total heat which should be supplied to each boiler in order to substantially maximize energy efficiency. The result of such multiplication is the heat per unit time which should be supplied to each boiler. The fuel and air supplied to each boiler is controlled so as to supply the thus determined heat per unit time which not only results in maintenance of a desired header pressure but also results in substantially maximizing energy efficiency of the parallel boilers.
31 Apparatus and method for fluidly connecting a boiler into pressurized steam feed line and combined-cycle steam generator power plant embodying the same US664638 1984-10-25 US4576124A 1986-03-18 Alan Martens; Kermit R. Wescott; Bennie E. Snow
A coupling controller opens a dump valve at the outlet of a heat recovery steam generator when such generator is to be coupled to another generator being in operation with a steam turbine on a common header. The controller gradually permits pressure build-up until the pressure at the outlet of the new generator matches the pressure behind the header. The controller also responds to critical conditions in the superheater as well as in the high pressure drum of the generator in the operation.
32 Unit controller for multiple-unit dispatch control US463690 1983-02-04 US4514642A 1985-04-30 Charles W. Ross
A control system is provided for controlling the distribution of load among a plurality of generators with some of those generators responding quickly to control and some being slow in response. The area control error signal is divided into portions to provide a unit error signal assigned to each generator. A control is utilized which responds to the unit error signal to reposition the governor motor until the error signal is reduced to zero. Applying that control to slow responding units requires anticipation of the generation changes to be expected after full response. Control of the governor motor position so as to modify generation is from the unit error signal as modified in accordance with the difference between the desired generation for the units as required for economic considerations and the actual generation with that difference being modified by a signal which is a function of the anticipated generation. That function is expressable in one form by the equation ##EQU1## where: K is a constantP.sub.a.sbsb.i is the anticipating signalP.sub.g.sbsb.i is the actual generation.epsilon..sub.PT is the deviation of the throttle pressure from its set point andP.sub.T (SP) is the throttle pressure set point and in another form by the equationP.sub.a.sbsb.i =P.sub.g.sbsb.i (SP)-P.sub.g.sbsb.i.
33 Multiple boiler control system US57877266 1966-09-12 US3387589A 1968-06-11 WILLIAM CHAN; STEFFES GEORGE L
34 Steam power installations US62065556 1956-11-06 US2918798A 1959-12-29 GERHARD SCHRODER FRANZ
35 Steam generating plant utilizing heat emanating from many different sources US30186652 1952-07-31 US2702026A 1955-02-15 DAVID DALIN
36 Boiler system US14912524 2014-08-07 US10030866B2 2018-07-24 Yasuhiro Hyodo
A boiler system equipped with a boiler group mixedly provided with a step value control boiler and a proportional control boiler. A boiler number control device is configured to control the number of boilers in the boiler group, and includes an output controller configured to control a combustion state of the boiler group so as to cause the proportional control boiler to output steam equivalent to a required steam flow according to a required load, and an output switcher configured to switch, under a condition that a steam flow outputted from the proportional control boiler reaches a predetermined steam flow exceeding a steam flow at a possible combustion point of the step value control boiler, output of the steam flow at the combustion point from the proportional control boiler to the step value control boiler.
37 NETWORKED BOILER SYSTEM US15340468 2016-11-01 US20170130971A1 2017-05-11 JOHN WILSON; RICHARD OSIENSKI; MARK RAWSON; BRIAN HANNIGAN; DAVID ABAD; OMAR FIALLOS
A networked boiler system includes a first boiler, at least one secondary boiler in operative connection with the first boiler and having a plurality of internal sub boilers, a boiler control connected to one of the first or secondary boilers, and an external control connected to one of the first or secondary boilers. The boiler control enables the first boiler to control a boiler parameter of the first boiler, the at least one secondary boiler, and the plurality of internal sub boilers of the at least one secondary boiler.
38 SYSTEMS AND METHODS FOR SELECTIVELY PRODUCING STEAM FROM SOLAR COLLECTORS AND HEATERS FOR PROCESSES INCLUDING ENHANCED OIL RECOVERY US14747998 2015-06-23 US20150295158A1 2015-10-15 John Setel O'Donnell; Peter Emery von Behrens; Andras Nady; Stuart M. Heisler
Systems and methods for selectively producing steam from solar collectors and heaters, for processes including enhanced oil recovery, are disclosed herein. A system in accordance with a particular embodiment includes a water source, a solar collector that includes a collector inlet, a collector outlet, and a plurality of solar concentrators positioned to heat water passing from the collector inlet to the collector outlet, a fuel-fired heater, a steam outlet connected to an oil field injection well, and a water flow network coupled among the water source, the solar collector, the heater, and the steam outlet. The system can further include a controller operatively coupled to the water flow network and programmed with instructions that, when executed, direct at least one portion of the flow through the solar collector and the fuel-fired heater in a first sequence, and direct the at least one portion or a different portion of the flow through the solar collector and the fuel-fired heater in a second sequence different than the first sequence.
39 SYSTEMS AND METHODS FOR SELECTIVELY PRODUCING STEAM FROM SOLAR COLLECTORS AND HEATERS FOR PROCESSES INCLUDING ENHANCED OIL RECOVERY US14745162 2015-06-19 US20150285048A1 2015-10-08 John Setel O'Donnell; Peter Emery von Behrens; Andras Nady; Stuart M. Heisler
Systems and methods for selectively producing steam from solar collectors and heaters, for processes including enhanced oil recovery, are disclosed herein. A system in accordance with a particular embodiment includes a water source, a solar collector that includes a collector inlet, a collector outlet, and a plurality of solar concentrators positioned to heat water passing from the collector inlet to the collector outlet, a fuel-fired heater, a steam outlet connected to an oil field injection well, and a water flow network coupled among the water source, the solar collector, the heater, and the steam outlet. The system can further include a controller operatively coupled to the water flow network and programmed with instructions that, when executed, direct at least one portion of the flow through the solar collector and the fuel-fired heater in a first sequence, and direct the at least one portion or a different portion of the flow through the solar collector and the fuel-fired heater in a second sequence different than the first sequence.
40 Control system for a boiler assembly US13734462 2013-01-04 US08651064B2 2014-02-18 John C. Paine
A control system for managing and interfacing a plurality of water heaters, e.g. boilers. The control system includes a first boiler unit controlled by a first boiler control unit and a second boiler unit controlled by a second boiler control unit. The first boiler control unit is operable to coordinate the operation of the first and second boiler units in response to changes in output demand. The flues of the first and second boiler units are connected to a common flue. The control system further includes an interface and an interface control system. The interface control system communicates requests from the interface, to report and/or alter the operating parameters of the first and second boiler units, to the first and second boiler control units and communicates the request outcome(s) back to the interface.
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