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Title:
STEAM TURBINE QUICK START WARMING SYSTEM, PRE-WARMING SYSTEM AND WARMING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/011326
Kind Code:
A1
Abstract:
A combined-cycle steam turbine quick start warming system, a pre-warming system and a warming method therefor. The combined-cycle steam turbine quick start warming system comprises a gas turbine (1), a generator (17), an synchro-self-shifting clutch (2), a steam turbine and a warming steam source (3); the steam turbine comprises a high pressure cylinder (HP), an intermediate pressure cylinder (IP) and a low pressure cylinder (LP); and the warming steam source (3) is connected to a warming steam conveying pipeline (100) which is in communication with the high pressure cylinder (HP) and the intermediate pressure cylinder (IP). The warming method comprises: the gas turbine (1) and a steam turbine operating in a turned state; increasing the rotation speed of the gas turbine (1) to m rpm; introducing warm steam into the steam turbine to increase the rotation speed of the steam turbine to n rpm, where n < m; reducing the rotation speed of the gas turbine (1), the synchro-self-shifting clutch (2) automatically meshing when the rotation speed of the gas turbine (1) is reduced to n rpm and the rotation speed of the steam turbine tends to exceed the rotation speed of the gas turbine (1); the steam turbine driving the gas turbine (1) to rotate, so as to start warming up; and finishing the warming up when the temperature of an intermediate pressure rotor of the steam turbine reaches a preset temperature, or the warming time reaches a preset time.

Inventors:
FENG, Lei (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
ZHANG, Lijian (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
YANG, Hong (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
HE, Aping (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
HU, Yu (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
Application Number:
CN2018/095621
Publication Date:
January 17, 2019
Filing Date:
July 13, 2018
Export Citation:
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Assignee:
SHANGHAI ELECTRIC POWER EQUIPMENT CO., LTD. (Building 3, No. 3669 Jindu RoadXinzhuang Industrial Park, Minhang District, Shanghai 8, 201108, CN)
SHANGHAI TURBINE COMPANY, LTD. (No. 333 Jiangchuan Road, Minhang District, Shanghai 0, 200240, CN)
SHANGHAI ELECTRIC GAS TURBINE CO., LTD. (No. 333 Jiangchuan Road, Minhang District, Shanghai 0, 200240, CN)
International Classes:
F01D25/10; F01D19/00; F01D25/34; F01K7/22; F01K11/02; F01K13/02; F02C6/00; F02C7/277; F16D43/04
Foreign References:
CN107152317A2017-09-12
CN207145026U2018-03-27
CN207278308U2018-04-27
CN205876402U2017-01-11
US20100281877A12010-11-11
CN203430579U2014-02-12
CN204591373U2015-08-26
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (21st Floor, SFECO Mansion681 Xiaomuqiao Road, Shanghai 2, 200032, CN)
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