Closed Cooling Water System of Gas Thermal Power Plant and Its Start-up and Stop Control Method
A closed cooling water and thermal power plant technology, applied in non-electric variable control, liquid level control, temperature control and other directions, can solve the problems of disturbing the operating state, unable to realize automatic start, unable to realize automatic start and automatic stop, etc., to achieve automatic stop effect
Active Publication Date: 2018-11-06
STATE GRID CORP OF CHINA +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The existing closed cooling water system cannot realize the automatic start and automatic stop under the running state of the closed cooling water system of the gas-fired thermal power plant.
It is impossible to realize the automatic start-up of the closed-circuit cooling water system of the gas-fired thermal power plant under the partial start-up state, and it will interfere with the original operation state
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0052] The embodiment of the present invention provides a closed cooling water system for a gas-fired thermal power plant. The closed cooling water system of the gas-fired thermal power plant includes: a two-to-one closed cooling water system, a one-to-one closed cooling water system, and a closed-water public system.
[0053] Such as figure 1 As shown, the closed water public system includes: closed cooling water supply main pipe 1, closed...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a closed-type cooling system for a fuel gas thermal power plant, and a starting / stopping control method for the closed-type cooling system. The method comprises the steps: the starting of a closed-water type utility system, the selecting of units, the starting of operation, and the stopping of the system. The method needs to judge whether the pressure of a demineralized water mother tube is greater than 0.2MPa or not, whether a closed-type circulating water pump is pre-selected or not and whether a 2GT+1ST closed-type cooling water system or a 1GT+1ST closed-type cooling water system is pre-selected or not before the step of the starting of the closed-water type utility system. If the pressure of the demineralized water mother tube is greater than 0.2MPa, the closed-type circulating water pump is pre-selected and the 2GT+1ST closed-type cooling water system or the 1GT+1ST closed-type cooling water system is pre-selected, the step of the starting of the closed-water type utility system is carried out. According to the invention, the method can achieve the automatic starting of the closed-type cooling water systems during the complete stopping or partial starting of the closed-type cooling water systems, and does not affect an original operation state during the partial starting. The method achieves the automatic stopping of the closed-type cooling water systems in an operation state.
Description
Technical field [0001] The invention relates to a closed cooling water technology for a gas-fired thermal power plant, in particular to a closed cooling water system for a gas-fired thermal power plant and a start-stop control method thereof. Background technique [0002] The function of the closed cooling water system of the gas-fired thermal power plant is to provide the auxiliary equipment of the gas-fired thermal power plant with a cooling water source with higher water quality requirements and a small water consumption. Generally, demineralized water or condensed water is used. The existing closed cooling water system cannot realize the automatic start of the closed cooling water system of the gas-fired thermal power plant under the full stop state and the automatic stop under the running state. The closed cooling water system of the gas-fired thermal power plant cannot be automatically started in the partial starting state, and it will interfere with the original operating ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/00G05D9/12
Inventor 任彦李磊左川高爱国
Owner STATE GRID CORP OF CHINA