公开(公告)号：US20210341139A1

公开(公告)日：2021-11-04

申请号：US17282022

申请日：2019-09-19

申请人： Siemens Energy Global GmbH & Co. KG

发明人： Jan Brückner ,  Tobias Schulze ,  Frank Thomas

IPC分类号： F22B35/12 ,  F22B29/06 ,  F22D5/30 ,  F22D5/34

摘要： A method for operating a forced-flow steam generator constructed as a waste-heat steam generator having a pre-heater, including pre-heater heating surfaces, and having an evaporator including evaporator heating surfaces connected downstream on the flow medium side of the pre-heater heating surfaces. A device for adjusting a feed water mass flow has a set point for the feed water mass flow. During the creation of the set point for the feed water mass flow, a waste-heat flow transferred to a fluid in the evaporator heating surfaces is determined, and mass storage and energy storage in the fluid in the evaporator heating surfaces is detected during non-steady-state plant operation. A behaviour over time of a mass storage in the evaporator is coupled with a behaviour over time of a mass storage in the pre-heater, wherein scaling is carried out with a ratio of the density changes in the evaporator and pre-heater

公开(公告)号：US20170344032A1

公开(公告)日：2017-11-30

申请号：US15166171

申请日：2016-05-26

申请人： General Electric Company

发明人： Sunil Puthen Veedu Unnikrishnan ,  Giriprasad Venkata Narasimha Chebiyyam ,  Charles William Weidner

IPC分类号： G05D7/06 ,  G05B15/02 ,  F22D5/30 ,  G06N7/00 ,  F22B37/78

CPC分类号： G05D7/0676 ,  F01K23/101 ,  F22B37/38 ,  F22B37/78 ,  F22D5/30 ,  G05B15/02 ,  G06N7/005 ,  Y02E20/16

摘要： A level control system for controlling the liquid level in a boiler drum is provided. The level control system uses an integration parameter when operating in a non-transient condition to provide a control signal into a flow control loop controlling a level control valve for the liquid level in the boiler drum. When a transient condition is identified by a predictive controller, the integration parameter is interrupted and a gain vector is generated to modify the control constants and optionally modify feedforward to adjust control signal into the flow control loop during transient operation of the level control valve.

公开(公告)号：US20130074787A1

公开(公告)日：2013-03-28

申请号：US13700991

申请日：2011-07-08

申请人： Joo Hyuk Yim

发明人： Joo Hyuk Yim

IPC分类号： F22D5/30

CPC分类号： F22D5/30 ,  F22B1/284 ,  Y02P80/154

摘要： The present invention relates to a steam generation device for automatic water supply using self vapor pressure that continuously generates necessary steam while smoothly supplying water to a steam tank by using a self vapor pressure stored in the steam tank as well as minimizes heat loss in a process of generating steam to outside thereby reducing energy consumed in generating steam, and more particularly, to a steam generation device for automatic water supply using self vapor pressure that supplies water more smoothly through a control method of opening a water supply pressure tank only after the water supply pressure tank is supplied with sufficient vapor pressure.

摘要翻译： 本发明涉及一种使用自蒸汽压力自动供水的蒸汽发生装置，其通过使用存储在蒸汽罐中的自身蒸汽压力平稳地向蒸汽罐供水，并连续产生必要的蒸汽，并且使过程中的热损失最小化 向外部产生蒸汽，从而减少产生蒸汽的能量消耗，更具体地说，涉及一种使用自蒸汽压力进行自动供水的蒸汽发生装置，所述自蒸汽压力通过仅在水之后打开供水压力罐的控制方法更平稳地供水 供应压力罐供应足够的蒸汽压力。

公开(公告)号：US06978741B2

公开(公告)日：2005-12-27

申请号：US10887105

申请日：2004-07-08

申请人： Brendan Kemp ,  Paul James Nichols

发明人： Brendan Kemp ,  Paul James Nichols

IPC分类号： F22B37/56 ,  F22D5/00 ,  F22D5/30 ,  F24H9/20

CPC分类号： F22B37/565

摘要： A method and apparatus for controlling the operation of a pressurized steam boiler heated by a burner. The method includes the steps of monitoring the level of total dissolved solids in water contained in the boiler, monitoring the level of water in the boiler, monitoring the pressure of steam in the boiler, monitoring the firing rate of the burner; controlling the blow down of the boiler having regard to the level of total dissolved solids in water contained in the boiler, and controlling the flow rate of water into the boiler and the firing rate of the burner. All input signals relating to the monitoring steps are passed to a common control unit and all output signals relating to the controlling steps are transmitted from the common control unit.

摘要翻译： 一种用于控制由燃烧器加热的加压蒸汽锅炉的操作的方法和装置。 该方法包括监测锅炉水中总溶解固体含量的水平，监测锅炉水位，监测锅炉蒸汽压力，监测燃烧器燃烧速率的步骤; 考虑到锅炉中所含的水中总溶解固体含量的水平，控制锅炉的排放，并控制进入锅炉的水的流量和燃烧器的燃烧速率。 与监视步骤相关的所有输入信号被传递到公共控制单元，并且与控制步骤相关的所有输出信号都从公共控制单元发送。

公开(公告)号：US20050178759A1

公开(公告)日：2005-08-18

申请号：US10777580

申请日：2004-02-12

申请人： Manu Arora ,  Leroy Tomlinson ,  Raub Smith ,  Bruce Norman ,  Matthew Lennon

发明人： Manu Arora ,  Leroy Tomlinson ,  Raub Smith ,  Bruce Norman ,  Matthew Lennon

IPC分类号： F22D5/30 ,  F01K23/10 ,  G05D9/12 ,  G05D16/20 ,  H05B1/02

CPC分类号： F01K23/101 ,  G05D16/2013 ,  Y02E20/16

摘要： A method for controlling the level of a drum in a drum-type boiler includes adjusting a gain of a drum level PID (such as a Proportional Integral Derivative control) in accordance with a signal representative of a set of tuning constants, a signal representative of drum level, and a signal representative of a drum level setpoint. The method also includes utilizing a flow control PID to adjust a drum level control valve, wherein the flow control PID adjusts the drum level control valve in accordance with an output of the drum level PID, a signal representative of steam flow, and a signal representative of drum feedwater flow.

摘要翻译： 一种用于控制滚筒式锅炉中的滚筒水平的方法包括根据表示一组调谐常数的信号来调节鼓级PID（例如比例积分微分控制）的增益，代表 鼓级，以及表示鼓级设定值的信号。 该方法还包括利用流量控制PID来调节鼓级控制阀，其中流量控制PID根据鼓级PID的输出，代表蒸汽流的信号和信号代表来调节鼓级控制阀 鼓给水流。

公开(公告)号：US4551796A

公开(公告)日：1985-11-05

申请号：US500759

申请日：1983-06-03

申请人： Gurdip Singh

发明人： Gurdip Singh

IPC分类号： F22D5/26 ,  F22B35/00 ,  F22D5/30 ,  G05D9/12 ,  G05B15/02 ,  F01B25/00 ,  F02N11/06 ,  H02P9/04

CPC分类号： F22D5/30 ,  F22B35/004 ,  G05D9/12

摘要： A system for regulating the liquid level (20) in a vapor generator (10), in which the incoming flow of feed liquid (54) is regulated (48) in response to the difference between the measured liquid level (76) and a reference level (80), the difference between the exiting vapor mass flow rate (64) and the incoming liquid mass flow rate (56), and a function of the measured incoming liquid temperature (92). The temperature function produces a gain value (98), which increases in response to decreasing incoming liquid temperature.

摘要翻译： 一种用于调节蒸气发生器（10）中的液位（20）的系统，其中响应于所测量的液位（76）和参考值（76）之间的差异来调节进料液体（54）的进入流（48） （80），出口的蒸汽质量流量（64）和进入的液体质量流量（56）之间的差异以及测量的进入液体温度（92）的函数。 温度函数产生增益值（98），响应于输入液体温度的降低而增加。

公开(公告)号：US4275447A

公开(公告)日：1981-06-23

申请号：US038304

申请日：1979-05-11

申请人： Pierre Ruiz

发明人： Pierre Ruiz

IPC分类号： F22B1/16 ,  F22B35/00 ,  F22D5/30 ,  F22D5/34 ,  G06F15/52 ,  G06F15/46 ,  G21C7/00

CPC分类号： F22B35/004

摘要： Method of regulation of the water level in boilers or steam generators, in which the inlet flow of feedwater is regulated in response to a deviation signal proportional to the difference between the real measured water level and a reference level, the proportionality factor being a linear function of the power level of the boiler with respect to the nominal power, modified by a non-linear function of .xi. which preserves very low values for .xi. close to zero and increases very rapidly for higher values of .xi. so that the total gain is increased for low power levels and high values of .xi. within a restricted range.

摘要翻译： 调节锅炉或蒸汽发生器中水位的方法，其中给水的入口流量响应于与实测水位和参考水平之间的差成比例的偏差信号来调节，比例系数是线性函数 的锅炉功率水平相对于标称功率，由xi的非线性函数修正，xi保持非常低的xi接近于零的值，并且对于较高的xi值而非常快速地增加，使得总增益增加为 低功率水平和高值xi在限制范围内。

公开(公告)号：US4242989A

公开(公告)日：1981-01-06

申请号：US38658

申请日：1979-05-14

申请人： Harvey H. Chamberlain

发明人： Harvey H. Chamberlain

IPC分类号： F22D5/34 ,  F22D5/30 ,  G05D9/12 ,  F22D5/26

CPC分类号： G05D9/12 ,  F22D5/30

摘要： This disclosure relates to apparatus for steam generation or boilers and more specifically, discloses a system for controlling the fluid level in a boiler drum. Drum level control requires an observation of the fluid level in the drum and also takes into account steam flow out of the drum and feedwater flow into the drum. The present invention improves upon the prior art by providing an unusually responsive drum level controller in combination with inputs relating to steam flow and water flow. This is accomplished by considering the derivative of steam flow minus water flow in combination with a fast drum level controller.

摘要翻译： 本公开涉及用于蒸汽发生或锅炉的设备，更具体地，公开了一种用于控制锅炉鼓中的液位的系统。 滚筒水平控制需要观察滚筒中的液位，还考虑到蒸汽从滚筒流出并将进水流入滚筒。 本发明通过提供与蒸汽流和水流相关的输入结合的异常响应的鼓级控制器来改进现有技术。 这是通过考虑与快速鼓级控制器结合的蒸汽流量减去水流的导数来实现的。

公开(公告)号：US2842151A

公开(公告)日：1958-07-08

申请号：US52726655

申请日：1955-08-09

申请人： HAGAN CHEMICALS & CONTROLS INC

发明人： CUNNINGHAM JR EDWIN A ,  ANDERSON GEORGE R

IPC分类号： F01D21/14 ,  F22B37/42 ,  F22D5/18 ,  F22D5/30

CPC分类号： F22D5/30 ,  F01D21/14 ,  F22B37/42 ,  F22D5/18 ,  Y10T137/2705

公开(公告)号：US11530812B2

公开(公告)日：2022-12-20

申请号：US17282022

申请日：2019-09-19

申请人： Siemens Energy Global GmbH & Co. KG

发明人： Jan Brückner ,  Tobias Schulze ,  Frank Thomas

IPC分类号： F22D5/26 ,  F22B35/12 ,  F22B29/06 ,  F22D5/30 ,  F22D5/34

摘要： A method for operating a forced-flow steam generator constructed as a waste-heat steam generator having a pre-heater, including pre-heater heating surfaces, and having an evaporator including evaporator heating surfaces connected downstream on the flow medium side of the pre-heater heating surfaces. A device for adjusting a feed water mass flow has a set point for the feed water mass flow. During the creation of the set point for the feed water mass flow, a waste-heat flow transferred to a fluid in the evaporator heating surfaces is determined, and mass storage and energy storage in the fluid in the evaporator heating surfaces is detected during non-steady-state plant operation. A behaviour over time of a mass storage in the evaporator is coupled with a behaviour over time of a mass storage in the pre-heater, wherein scaling is carried out with a ratio of the density changes in the evaporator and pre-heater.