Control system and method for nuclear energy steam extraction heat supply

A technology for steam extraction, heat supply and control system, which is applied in nuclear power generation, steam application, steam engine installation, etc. It can solve problems such as poor regulation characteristics, high exhaust pressure disturbance, and safety risk of steam turbine operation, so as to reduce disturbance and improve stability , the effect of reducing security risks

Pending Publication Date: 2022-05-27
SHANDONG NUCLEAR POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a control system and method for nuclear energy extraction and heat supply to at least solve the technical problem in the related art that the time delay in regulation and the disturbance of high exhaust pressure caused by poor regulation characteristics bring safety risks to the operation of steam turbines

Method used

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  • Control system and method for nuclear energy steam extraction heat supply
  • Control system and method for nuclear energy steam extraction heat supply
  • Control system and method for nuclear energy steam extraction heat supply

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] figure 1 The structure diagram of a control system for nuclear energy extraction and heating provided by the embodiment of the present disclosure, as shown in figure 1 As shown, the system includes: a primary pressure detection device 1, a high discharge pressure detection device 2, a heating flow detection device 3, a collection module 4, an instruction generation module 5 and an instruction output module 6;

[0035] The first-stage pressure detection device 1 is used to detect the first-stage pressure of the steam turbine to obtain the first-stage pressure signal;

[0036] The high exhaust pressure measuring device 2 is used to detect the exhaust pressure of the high pressure cylinder of the steam turbine to obtain an exhaust pressure signal;

[0037] The described steam extraction heat supply flow measuring device 3 is used to detect the extraction steam heat supply flow to obtain the extraction steam heat supply flow signal;

[0038] The collection module 4 is use...

Embodiment 2

[0073] Figure 8 A flow chart of a method for controlling nuclear energy extraction and heat supply provided according to an embodiment of the present application, such as Figure 8 As shown, the method may include:

[0074] Step 1: Obtain the first-stage pressure signal of the steam turbine, the exhaust steam pressure signal of the high-pressure cylinder of the steam turbine, the extraction steam heat supply flow signal and the fixed value of the extraction steam heat supply flow rate corresponding to the load demand of the heat network, and the preset value according to the design requirements of the steam turbine. Set high discharge pressure value;

[0075] Step 2: Determine the deviation between the extraction steam heat supply flow signal and the extraction steam heat supply flow constant value by using the extraction steam heat supply flow constant value and the extraction steam heat supply flow signal The pressure setting value and the exhaust steam pressure signal of...

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Abstract

The invention relates to a control system and method for nuclear energy steam extraction heat supply. The control system for nuclear energy steam extraction heat supply comprises a primary pressure detection device, a high exhaust pressure detection device, a heat supply flow detection device, an acquisition module, an instruction generation module and an instruction output module. Action instructions of the steam extraction quick-closing regulating valve and the steam turbine low-pressure cylinder steam inlet regulating valve are generated based on the devices and the modules, and then field equipment is controlled based on the action instructions. According to the technical scheme, disturbance of high exhaust pressure in the unit operation process can be effectively reduced, the safety risk of operation of the steam turbine under the transient working condition is reduced, and the stability and safety of operation of the nuclear power steam extraction and heat supply unit are improved.

Description

technical field [0001] The present application relates to the technical field of nuclear energy heating, and in particular, to a control system and method for nuclear energy extraction and heating. Background technique [0002] At present, the central heating system has been widely used in cities, and the heating energy is still dominated by fossil energy, so it is difficult to avoid the impact of carbon oxide emissions on the environment. As a clean, efficient and stable energy source, nuclear energy can provide users with a steady stream of heat. Nuclear energy heating is gradually becoming another energy supply form of nuclear energy. [0003] The current extraction steam heating system of nuclear power plants generally adjusts the extraction steam heating parameters by manually operating the extraction steam fast-closing valve (FCV). The change of pressure) is accomplished by the control device automatically adjusting the low-pressure cylinder inlet control valve (ICV) ...

Claims

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Application Information

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IPC IPC(8): F01K13/02F01K17/02F01D17/10
CPCF01K13/02F01K17/02F01D17/10Y02E30/00
Inventor 徐国彬张秉卓李建伟王翔宇蔡向阳周勇锋宋达邢照凯谢红军王珊珊杨金凤黄翔
Owner SHANDONG NUCLEAR POWER CO LTD
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