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Drainage system of feed pump turbine arranged at low position

A feed pump steam turbine, feed pump technology, applied in the direction of pumps, pump devices, mechanical equipment, etc., can solve the problems of high position of the steam-driven feed pump group, inability to control drainage, increase the difficulty and cost of installation, etc.

Active Publication Date: 2009-10-21
SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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Problems solved by technology

Its main disadvantages are that it can only rely on the height drop to drain water, and cannot control the water drain. The position of the steam-driven feed water pump unit 4 is too high, which increases the difficulty and cost of installation, and at the same time cannot meet the needs of projects that cannot adopt conventional system settings due to unit transformation. Require

Method used

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  • Drainage system of feed pump turbine arranged at low position
  • Drainage system of feed pump turbine arranged at low position

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Embodiment Construction

[0014] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0015] Such as figure 2 The drainage system of the feedwater pump steam turbine shown in the low position includes: feedwater pump steam turbine 1, feedwater pump 2, front pump 3, drainage pipeline 7, feedwater pump steam turbine drainage tank 8, steam balance pipe 9, injector 10, pneumatic adjustment valve 11.

[0016] Among them, the front pump 3, the feedwater pump 2 and the feedwater pump turbine 1 connected in sequence form the steam-driven feedwater pump set 4, and the design elevation of the steam-driven feedwater pump set 4 is 2.2m, including the feedwater pump located below the steam-driven feedwater pump set 4 Ste...

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Abstract

The invention discloses a drainage system of a feed pump turbine arranged at low position, comprising a steam feed pump group (4) and a feed pump turbine drainage tank (8) positioned below the steam feed pump group (4); an ejector (10) is connected at the bottom of the feed pump turbine drainage tank (8) through a drainage pipe (7); the ejector (10) is connected to a condenser (6) through the drainage pipe (7); a steam balance pipe (9) is arranged above the feed pump turbine drainage tank (8); the steam balance pipe (9) is communicated with the steam side of the condenser (6); one end of the ejector (10) which is not connected with the condenser (6) is connected with a pneumatic adjusting valve (11) through the drainage pipe (7); and the inner wall of the feed pump turbine drainage tank (8) is provided with a water level height sensor which is electrically connected with the pneumatic adjusting valve (11). The steam feed pump group has lower elevation, convenient installation and easy control.

Description

technical field [0001] The present invention relates to the improvement of the drainage system of the steam turbine of the feed water pump. Background technique [0002] For the drainage system of the feedwater pump steam turbine used in the power plant, the conventional design of the steam-driven feedwater pump set adopts a high-level arrangement, such as figure 1 As shown: the steam-driven feedwater pump set 4 includes the front pump 3, the feedwater pump 2 and the feedwater pump steam turbine 1 connected in sequence. The steam-driven feedwater pump set 4 is about 15 meters above the ground, and is connected to the condenser through the drain pipe 7 The expansion vessel 5 before 6, the expansion vessel 5 is about 0.3 meters above the ground, and in the drainage pipeline with a higher drop, water can flow to the condenser 6 by artesian flow. Its main disadvantages are that it can only rely on the height drop to drain water, and cannot control the water drain. The position ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B23/02F04B23/04
Inventor 王旭东周大吉唐茂平王斌付焕兴樊慧
Owner SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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