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A connection and operation method of a high-pressure cylinder based on zero output and reheat steam bus pipe

A technology of reheating steam and high-pressure cylinders, applied in steam generation, steam engine devices, steam generation devices, etc., can solve problems such as dependence on thermoelectric decoupling technology, and achieve the effect of flexible load distribution

Active Publication Date: 2022-08-02
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermoelectric decoupling technology relies heavily on the huge heat load user demand, which has great limitations

Method used

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  • A connection and operation method of a high-pressure cylinder based on zero output and reheat steam bus pipe
  • A connection and operation method of a high-pressure cylinder based on zero output and reheat steam bus pipe

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Embodiment Construction

[0038] The present invention will be described in detail below with reference to the accompanying drawings.

[0039] see figure 1 , The present invention provides a connection system and operation method based on a high-pressure cylinder zero output and reheat steam main pipe, including a conventional boiler, a steam turbine unit steam-water system and an additional system. Among them, the additional system includes: the steam connection main pipe of the reheat hot section, the condensate water connection main pipe, the deaerator to the condensate water connection main pipe connection pipe, the high and medium pressure cylinder inlet steam connection pipe and the corresponding control, the shut-off valve group, the Heater outlet pipeline check valve and medium pressure combined valve are transformed into adjustable medium pressure combined valve.

[0040] Wherein, the steam turbine unit steam-water system includes boilers 1, 2, . The inlet is connected, the reheat steam pipe...

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Abstract

The invention discloses a connection system based on a high-pressure cylinder with zero output and reheated steam main pipe, which includes a conventional boiler, a steam-water system of a steam turbine unit and some additional systems. The additional system connects the reheated hot section steam and condensed water to the corresponding main pipes respectively. When the boilers of some units are out of service, hot standby or running in two shifts, the steam turbine of the outage unit can obtain reheated steam by controlling the connection valve group between each main pipe and the unit, and the condensed water of the outage unit can be recovered, so as to realize the non-stop downtime of the furnace. , In addition, the high-pressure heater of the shutdown unit does not work, which is more energy-saving. By adopting the method of the invention, the unit can realize further "decoupling of machine and furnace" under the operating condition of "few boilers and multiple machines", and under the normal operating condition of the boiler in operation, the steam turbine under the operating condition of deep peak shaving can be further reduced Generator set output motor rate.

Description

technical field [0001] The invention belongs to the field of thermal power generation, and in particular relates to a connection system and an operation method for a main pipe of a high-pressure cylinder with zero output and reheated steam. Background technique [0002] The continuous increase in the installed capacity of new energy power generation systems has prompted the power grid to put forward higher requirements for the peak shaving capability of thermal power units. At present, the flexibility transformation of common thermal power units is mainly divided into boiler combustion stabilization technology and unit thermal electrolysis coupling technology according to the characteristics of pure condensing and heating units, as well as heating period and non-heating period. [0003] The boiler low-load stable combustion technology mainly solves the main technical means for the unit to achieve deep peak regulation under pure condensing operating conditions, including the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K11/02F01K13/02F01D17/10F01D13/02F01D15/10F22B33/18
CPCF01K11/02F01K13/02F01D17/10F01D13/02F01D15/10F22B33/18
Inventor 薛志恒贾晨光刘振琪赵杰王伟锋赵永坚张朋飞吴涛杜文斌王兴马勇雷开元赵帅
Owner XIAN THERMAL POWER RES INST CO LTD
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