Cylinder switching operation system of coal power unit
By adding ultra-high side pipelines to the thermoelectric unit, the problem of cutting cylinders in large ultra-supercritical units at high pressure and high temperatures is solved, and the flexibility and reliability of the unit are improved.
CN119914379APending Publication Date: 2025-05-02HANGZHOU E ENERGY ELECTRIC POWER TECH CO LTD
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Patent Information
- Application Number
- CN202411987466.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-05-02
AI Technical Summary
Technical Problem
The existing thermal motor set cylinder cutting technology is difficult to effectively control in large super-supercritical units, especially when pressure and temperature are too high, cylinder cutting operation cannot be achieved.
Method used
By adding ultra-high side pipes, it is allowed to switch high-temperature and high-pressure steam to the bypass pipe when the unit fails or the parameters are not qualified, thereby achieving cylinder cutting operation of ultra-high-pressure cylinders.
Benefits of technology
It effectively avoids the impact of the drop in steam parameters on boiler combustion, avoids shutdown, and allows operation in load sections such as low load and medium load, improving the flexibility and reliability of the unit.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a cylinder switching operation system of a coal power unit, which relates to the technical field of coal power and is used for solving the problem of lack of a high-pressure cylinder switching operation method in the prior art. The system comprises a steam turbine system, a steam and bypass system, a condensed water system and a water supply system which are connected through pipelines, and an ultrahigh bypass and steam part comprises an ultrahigh bypass pipeline. And when the parameters are unqualified when the coal power unit is started, or the coal power unit breaks down, all high-temperature and high-pressure steam entering the ultrahigh pressure cylinder enters the ultrahigh bypass pipeline. The bypass pipeline is additionally arranged, so that the cylinder switching operation of the ultrahigh pressure cylinder is realized.
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