Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A maintenance method for equipment of chilled water supply system of nuclear power plant

A supply system and equipment maintenance technology, applied in pipeline protection, mechanical equipment, pipeline anti-corrosion/anti-rust protection, etc., can solve problems such as pipeline corrosion, valve internal leakage failure, etc., and achieve the effect of ensuring reliability, safe and stable operating environment

Active Publication Date: 2017-08-25
JIANGSU NUCLEAR POWER CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of frequent faults of pipeline corrosion and internal leakage of valves in the chilled water supply system of nuclear power plants

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] A maintenance method for equipment of a nuclear power plant chilled water supply system of the present invention comprises the following steps:

[0011] Step 1. Pipeline cleaning: fill the pipes of the chilled water supply system with demineralized water and add a certain amount of trisodium phosphate, then start the system pump unit to circulate the chilled water in the pipes. At this time, a large amount of rust in the pipes falls off from the inner wall of the pipes. After a period of time, the waste water in the pipeline is discharged. Repeat the above process until the light transmittance, phosphate concentration, pH value, etc. of the circulating water in the pipeline meet the following requirements: Na 3 PO 4 The concentration is 3-20mg / L, the pH is 8.5-10.5, and the light transmittance is >85%.

[0012] Step 2. Maintenance of drug concentration during operation: After the water quality of the chilled water supply system reaches the standard, it enters the norm...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
transmittivityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a maintenance method for equipment of a chilled water supply system of a nuclear power plant, in particular to a system equipment maintenance method capable of preventing corrosion of pipes and valves of the chilled water supply system, reducing equipment maintenance costs, and improving system operation reliability. The equipment maintenance method of the chilled water supply system of the nuclear power plant of the present invention includes the steps of pipeline cleaning, running drug concentration maintenance, winter maintenance and the like. The method successfully solves the problem of serious corrosion of equipment in the chilled water supply system, ensures the reliability of the system operation, and provides a safe and stable operating environment for the unit.

Description

technical field [0001] The invention belongs to the technical field of maintenance of pipeline valve equipment, and in particular relates to a maintenance method for equipment of a chilled water supply system of a nuclear power plant. Background technique [0002] The chilled water supply system of nuclear power plants is used to cool down the air-conditioning ventilation system. Since its downstream users are distributed in various workshops, the system pipeline layout is lengthy and complicated, and there are many valves and other equipment. Pipeline corrosion, internal leakage of valves and other problems occur. Although the water supply of the system has been changed to desalinated water, and measures have been taken to maintain the circulation of chilled water in the system pipes in winter, and to carry out anti-corrosion maintenance of system pipes and valves, the corrosion of pipes and internal leakage of valves have not yet been prioritized. [0003] Pipeline corros...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/14C23C22/60F16L58/02
Inventor 冯越张毅李锋孙佰一尹海锋韩斌刘世江杨笑宇
Owner JIANGSU NUCLEAR POWER CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com