Structure and method for reducing dangerous medium leakage of filter

A dangerous medium and filter technology, which is applied in the field of nuclear power filter leakage, can solve problems such as increased tritium content, and achieve the effects of enhancing the sealing effect, reducing tritium radiation, and good sealing effect

Pending Publication Date: 2022-07-12
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, if a leak occurs at the connection between the filter cover plate 2 and the filter body 1, this will lead to a rapid increase in the tritium content in the plant. In extreme cases, the unit must be shut down to deal with the leak.

Method used

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  • Structure and method for reducing dangerous medium leakage of filter
  • Structure and method for reducing dangerous medium leakage of filter
  • Structure and method for reducing dangerous medium leakage of filter

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Embodiment Construction

[0039] Although the structure of the present invention for reducing hazardous media leakage from a filter can be implemented in a number of different ways, exemplary embodiments will be described in detail herein with reference to the accompanying drawings, it being understood that the description herein should be considered to reduce The structure of the filter hazardous medium leakage is exemplified and is not intended to limit the scope of protection of the present invention to the exemplary embodiment. Accordingly, the drawings and description of the detailed description should be considered in nature to illustrate rather than limit the invention.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "horizontal", "vertical", etc. herein indicate the orientation or positional relationship based on the accompanying drawings The orientation or positional relationship shown is only for the convenience of de...

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Abstract

The invention provides a structure for reducing dangerous medium leakage of a filter, the structure comprises a filter body and a filter cover plate, an inner sealing ring is arranged between the filter body and the filter cover plate, and the outer side of the inner sealing ring is provided with a leakage guide channel leading to the outside for collecting leaked dangerous media. The structure for reducing the dangerous medium leakage of the filter has a good sealing effect, can directly collect the leaked dangerous medium, and greatly reduces the risk that the dangerous medium leaks to a plant, so that the shutdown frequency of a power plant unit is further reduced, and radiation protection optimization is realized. In addition, the invention further provides a method for reducing leakage of the dangerous medium of the filter, the method prevents the dangerous medium from directly leaking to a plant, and the radiation risk of the plant is reduced.

Description

technical field [0001] The present invention relates to the technical field of nuclear power filter leakage, in particular to a structure and method for reducing the leakage of dangerous media in the filter. Background technique [0002] The nuclear island system of Qinshan No. 3 NPP uses a filter to remove the corrosion products generated during the operation of the unit, so as to reduce the radioactivity of the main circuit. like figure 1 As shown, the medium enters the inside of the filter body 1 from the water inlet 11 of the filter, is filtered by the filter screen 12, and then enters the system from the water outlet 13 at the lower part. According to the operation requirements of the equipment, the filter cover 2 needs to be opened to replace the filter screen 12 regularly. [0003] In addition, if the connection between the filter cover 2 and the filter body 1 leaks, the tritium content in the workshop will rise rapidly. In extreme cases, the unit must be shut down ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D35/30B01D35/14
CPCB01D35/30B01D35/14Y02E30/30
Inventor 郁光廷陈明军尉言辉潘强张仑张学锋
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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