Two-stage superheater desuperheating water system capable of independently taking water

A secondary superheater and superheater technology, applied in the control of superheated temperature, steam superheating, lighting and heating equipment, etc., can solve the problem of increasing the operating workload of operators, small pressure difference between desuperheating water and superheated steam, and superheating desuperheating water. Problems such as the inability to put into operation normally, to achieve the effect of not affecting the cooling effect, improving the steam temperature, and not increasing the operation switching operation
CN112303613APending Publication Date: 2021-02-02XIAN THERMAL POWER RES INST CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN THERMAL POWER RES INST CO LTD
Publication Date
2021-02-02

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Abstract

The invention discloses a two-stage superheater desuperheating water system capable of independently taking water. The two-stage superheater desuperheating water system comprises a deaerator, a waterfeeding pump, a third high-pressure heater, a first main pipe electric gate valve, a second high-pressure heater, a first high-pressure heater, an economizer, a second main pipe electric gate valve, afirst electric contact gate valve, a first contact main pipe check valve, a second-stage water supply system main pipe electric gate valve in an independent water taking mode, a first-stage water supply system main pipe electric gate valve in an independent water taking mode, a second electric contact gate valve, a second contact main pipe check valve, a platen superheater inlet header, a second-stage superheater inlet header, a steam pocket outlet steam pipeline, a first-stage superheater inlet header, a first-stage superheater outlet header, a platen superheater outlet header, a second-stage superheater outlet header and a steam output pipeline. The system can guarantee the cooling effect of superheated steam water spraying, the spray cooling effect is good, and the operation workload of operators is small.
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Description

technical field

[0001] The invention belongs to the field of superheater desuperheater water for power plant boilers, and relates to a two-stage superheater desuperheater water system for taking water separately. Background technique

[0002] The superheater desuperheater water of power plant boiler usually adopts two-stage desuperheater setting, which is divided into the first-stage desuperheater of the superheater and the second-stage desuperheater of the superheater. The primary desuperheater of the superheater is located on the outlet of the primary pass and the inlet conduit of the screen pass, and is arranged symmetrically on the left and right. The secondary desuperheater of the superheater is located on the outlet of the screen and the inlet of the second pass, and is arranged symmetrically on the left and right. The body of the superheater desuperheater includes a cylinder, a nozzle, a Venturi mixing tube and a bushing, etc. In the temperature control of superheat...

Claims

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