Sodium-cooled fast reactor steam generator and superheater heat transfer tube steam-water side chemical cleaning system

A technology of steam generator and sodium-cooled fast reactor, which is applied in the direction of cleaning heat transfer device, boiler cleaning control device, flushing, etc. It can solve the problems of high steam parameters and no chemical cleaning for the time being, and achieve the effect of improving corrosion resistance

Pending Publication Date: 2021-02-09
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology

The steam generator/superheater of the sodium-cooled fast reactor is one of the core equipment of the sodium-cooled fast reactor nuclear power plant. The material of the heat exchange tube is chrome-molybdenum steel 2.25Cr1Mo. The working condition is similar to that of some thermal power water walls, and

Method used

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  • Sodium-cooled fast reactor steam generator and superheater heat transfer tube steam-water side chemical cleaning system

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Embodiment Construction

[0020] The present invention is described in further detail below in conjunction with accompanying drawing:

[0021] refer to figure 1 , the sodium-cooled fast reactor steam generator of the present invention and the steam-water side chemical cleaning system of the superheater heat transfer tube include a dispensing box 1, a dispensing pump 2, a cleaning box 5, a steam source 4, a cleaning pump 6, a cleaning flow meter 9, Monitoring pipe 7, monitoring pipe flow meter 8, waste water collection tank 10, drain valve and chemical sampling device 12; the outlet of the dispensing box 1 is connected with the inlet of the dispensing pump 2, and the outlet of the dispensing pump 2 is divided into two paths, one of which passes through The return valve is connected with the entrance of the dispensing box 1, and the other is connected with the water inlet of the cleaning box 5. The desalinated water source 3 is connected with the entrance of the cleaning box 5 and the entrance of the dis...

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Abstract

The invention discloses a sodium-cooled fast reactor steam generator and superheater heat transfer tube steam-water side chemical cleaning system. An outlet of a chemical preparation box communicateswith an inlet of a chemical distribution pump, an outlet of the chemical distribution pump is divided into two paths, one path of the two paths communicates with an inlet of the chemical preparation box through a return valve, the other path communicates with a water inlet of a cleaning box, a desalted water source communicates with an inlet of the cleaning box and the inlet of the chemical preparation box, a nozzle is arranged in the cleaning box, a steam source communicates with the nozzle, an outlet of the cleaning box is divided into two paths, one path of the two paths communicates with an inlet of a cleaning flow meter through a cleaning pump, the other path communicates with an inlet of the cleaning flow meter through a monitoring pipe and a monitoring pipe flow meter, an outlet ofthe cleaning flow meter is divided into two paths, one path of the two paths communicates with a waste water collecting box through a drain valve, and the other path communicates with the inlet of thecleaning box through a steam generator, a superheater and a chemical sampling device in sequence. The system can achieve chemical cleaning of an evaporator and the superheater in a sodium-cooled fastreactor unit.

Description

technical field [0001] The invention belongs to the field of chemical cleaning of nuclear power plants, and relates to a chemical cleaning system for the steam-water side of a sodium-cooled fast reactor steam generator and a heat transfer tube of a superheater. Background technique [0002] Chemical cleaning technology has been widely used in thermal power plant water supply pipelines, main steam pipelines, and important equipment of water-cooled walls, and has achieved very good economic and safety benefits. Chemical cleaning is an important means to remove all kinds of sundries left in the pipeline of power plant system during the process of manufacturing, transportation, installation, etc., improve the cleanliness of equipment, and prevent corrosion damage of equipment during operation. It is an important step before the unit is put into operation. The steam generator / superheater of the sodium-cooled fast reactor is one of the core equipment of the sodium-cooled fast reac...

Claims

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Application Information

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IPC IPC(8): F22B37/56F28G9/00F28G15/00
CPCF22B37/56F28G9/00F28G15/003
Inventor 张瑞祥姚尧余俨刘锋胡杨
Owner XIAN THERMAL POWER RES INST CO LTD
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