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Water-supply medicine adding system for nuclear power plant

A technology of dosing system and nuclear power plant, which is applied in the field of water dosing system, can solve problems such as system complexity, and achieve the effect of improving reliability and economy

Inactive Publication Date: 2016-07-20
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The dosing system design of traditional nuclear power plants is to inject chemical agents into the water supply system through a booster pump and mix them. This design not only uses electricity, but also requires mechanical equipment to operate. The system is relatively complicated

Method used

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the water dosing system of a nuclear power plant includes:

[0020] Feedwater pump 4; said feedwater pump 4 is provided with a small flow return line 7; said small flow return line 7 is provided with a dosing pipeline 14; The chemical agents in 14 are mixed and injected into the inlet pipeline 2 of the feed water pump to achieve small flow backflow and adjust water quality;

[0021] Jet pump 10 ; the jet pump 10 is arranged on the dosing pipeline 14 and is configured to mix the chemical agent in the dosing pipeline 14 with the fluid in the small flow return line 7 .

[0022] Preferably, the medicine adding pipeline 14 is provided with a medicine adding box 15 .

[0023] Preferably, the dosing p...

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Abstract

The invention provides a water-supply medicine adding system for a nuclear power plant, and the system comprises a water supply pump. The water pump is provided with a small-flow backflow pipe. The small-flow backflow pipe is provided with a medicine adding pipe. Fluid in the small-flow backflow pipe is mixed with a chemical agent in the medicine adding pipe, and then is injected into an inlet pipe of the water supply pump, so as to achieve small-flow backflow and the adjustment of water quality. The system also comprises an injection pump, and the injection pump is disposed on the medicine adding pipe and is configured to be used for mixing the chemical agent in the medicine adding pipe with the fluid in the small-flow backflow pipe. According to the invention, the small-flow backflow pipe of the water supply pump is provided with the medicine adding pipe, and the injection pump with passive characteristics is employed, thereby achieving the mixing of the supplied water and the chemical agent, and improving the reliability and economic performance of system operation.

Description

technical field [0001] The invention relates to a water supply dosing system of a nuclear power plant. Background technique [0002] The feed water dosing system is of great significance to the operation of the secondary circuit of the nuclear power plant. Its main function is to provide feed water that meets the water quality requirements to the steam generator at different stages to take away the heat of the primary circuit. During the start-up and normal operation of the nuclear power plant, a certain amount of chemical agents are added to the water supply system through the dosing system to make the water supply meet the water quality requirements. The dosing system design of traditional nuclear power plants is to inject chemical agents into the water supply system through a booster pump for mixing. This design not only uses electricity, but also requires mechanical equipment to operate, and the system is relatively complicated. If a water dosing system using passive eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D1/02F22B37/00
CPCF22B37/003G21D1/02Y02E30/00
Inventor 邱健武心壮夏栓施伟陈丽黄秀杰苑景田江浩刘春丽施金冯
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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