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Preheating heating device for boron preparation of nuclear power station

A technology for heating devices and nuclear power plants, applied in nuclear power generation, nuclear engineering, manufacturing reactors, etc., can solve problems such as the demand for boric acid solution, and achieve the effects of improving boron production efficiency, reducing boron production time, and flexible and operable boron production operations

Pending Publication Date: 2019-07-02
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Application Information

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Problems solved by technology

[0008] The purpose of the invention is to solve the technical problem that nuclear power plants require a certain concentration of boric acid solution during operation and maintenance

Method used

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  • Preheating heating device for boron preparation of nuclear power station
  • Preheating heating device for boron preparation of nuclear power station
  • Preheating heating device for boron preparation of nuclear power station

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Such as figure 1 , figure 2 and image 3 As shown, a preheating heating device for boron production in a nuclear power plant includes an equipment installation base plate 1, a heater power supply control box 2, an electric heater 3, a water supply diverter 4, a thermometer 5, a drain confluence 6, and a preheating heating device drain Outlet control valve 7, electric heater water inlet control valve 8, electric heater water outlet control valve 9, pressure gauge 10, preheating heating device water supply inlet control valve 11, preheating heating device normal power supply master switch 12, preheating heating device Standby power supply main switch 13, electric heating device heater isolation switch 14, electric heater power supply switch 15, demineralized water supply main valve 16, bypass control valve 17, demineralized water outlet main val...

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Abstract

The invention belongs to the technical field of nuclear power station operation and maintenance, and particularly relates to a preheating heating device for boron preparation of a nuclear power station, and aims to solve the technical problem that a nuclear power station requires a boric acid solution with a certain concentration during operation and maintenance. The device is characterized by comprising a heater power supply control box, electric heaters, a control valve, a water supply shunt, a hydrophobic junction, a pressure gauge, a thermometer, a water inlet and outlet pipe and an equipment mounting bottom plate. According to the method, requirements for a boric acid solution with a certain concentration during operation and maintenance of the nuclear power station is met, flexibility and adjustability are achieved, boron production efficiency is improved, quality of a boric acid solution is guaranteed, and positive effects are achieved on reactivity control of the nuclear powerstation. At present, the device disclosed by the invention is adopted by the No.3 and No.4 units of the Qinshan nuclear power station, so that requirements for a boric acid solution in daily operationand refueling overhaul of the units are fully met, nuclear safety is promoted, production is promoted, and the commercial value is exhibited.

Description

technical field [0001] The invention belongs to the technical field of operation and maintenance of nuclear power plants, and in particular relates to a boron preheating heating device for nuclear power plants. Background technique [0002] The boron and water supply system of nuclear power plants mainly prepares various fluids required for storage and supply of reactivity control (acid spray solution), volume control and chemical control. This system is mainly composed of a water part and a boric acid part, which is related to nuclear safety. [0003] A boric acid solution with a certain concentration is planned to be prepared during the normal operation of the unit or during the outage for overhaul. In the factory, REA005BA is used to configure 21000PPm boric acid solution to supply RIS (safety injection) system, and can also be used to configure 7000PPm boric acid solution to send to REA003 / 004BA, but the boric acid solution in the storage tank is mainly from the boron r...

Claims

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Application Information

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IPC IPC(8): G21C21/02
CPCG21C21/02Y02E30/30
Inventor 杨琦徐超曹祖庭余蓓李佳朱良华陈胜郭向东陆志豪
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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