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Delivery device and system for filtering radioactive slurry

A delivery device and radioactive technology, which is applied in the field of nuclear fuel reprocessing, can solve the problems of radioactive spillover, low filtering driving force, and unsuitability for radioactive slurry

Active Publication Date: 2021-07-30
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above-mentioned several filtration operations, when the pressure filter operation is only used, the pressure is too high to easily cause radioactive spillage; when the simple suction filtration operation is used, although the radioactive spillover can be avoided, the filtering driving force is small, so that the slurry is easy to deposit in the pipeline and make The filtration speed is slow and cannot meet the requirements; the centrifugal filtration method is not suitable for the operation of radioactive slurry

Method used

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  • Delivery device and system for filtering radioactive slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a conveying device for filtering radioactive slurry, comprising: an isolation chamber, and the isolation chamber is provided with:

[0032] Radioactive slurry storage tanks for storing radioactive slurry;

[0033] The filter is connected with the radioactive slurry storage tank, and the filter is used for filtering the radioactive slurry;

[0034] The filtrate storage tank is connected with the filter and is used to receive the filtrate obtained by filtering through the filter;

[0035] The delivery unit also includes:

[0036] An air intake pipeline, one end of the air intake pipeline is located outside the isolation chamber and connected to the compressed air source device, and the air intake pipeline passes through the chamber wall of the isolation chamber to connect with the radioactive slurry storage tank located in the isolation chamber;

[0037] The vacuum pipeline passes through the chamber wall of the isolation chamber, one end of the...

Embodiment 2

[0043] like figure 1 As shown, the present embodiment provides a delivery device for filtering radioactive slurry, including: an isolation chamber 15, and the isolation chamber 15 is provided with:

[0044] Radioactive slurry storage tank 1, used for storing radioactive slurry;

[0045] The filter 2 is connected with the radioactive slurry storage tank 1, and the filter 2 is used for filtering the radioactive slurry;

[0046] The filtrate storage tank 3 is connected with the filter 2, and is used to receive the filtrate obtained by filtering through the filter 2;

[0047] The delivery unit also includes:

[0048] The air inlet pipe 5, one end of the air inlet pipe is located outside the isolation chamber 15 and is connected with the compressed air source device 13, and the air inlet pipe passes through the chamber wall of the isolation chamber 15 and is connected with the radioactive slurry storage tank 1 located in the isolation chamber 15;

[0049] The vacuum pipeline 4 p...

Embodiment 3

[0068] Such as figure 1 As shown, this embodiment also provides a delivery system for filtering radioactive slurry, including the delivery device for filtering radioactive slurry in Embodiment 1 or 2, and the delivery system also includes:

[0069] The compressed air source device 13 is located outside the isolation chamber 15, and the compressed gas source device 13 is connected to the air intake pipeline;

[0070] The vacuum device 14 is located outside the isolation chamber 15 , and the vacuum device 14 is connected with the vacuum pipeline 4 .

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Abstract

The invention discloses a conveying device and system for filtering radioactive serous liquid. The device comprises: an isolation room, which is provided with a radioactive serous liquid storage tank for storing the radioactive serous liquid; a filter connected with the radioactive serous liquid storage tank for Filter the radioactive slurry; the filtrate storage tank is connected with the filter to receive the filtrate filtered by the filter; the conveying device also includes: an air inlet pipe, one end of which is located outside the isolation room and connected to the compressed air source device, and the air inlet pipe passes through the isolation chamber. The chamber wall of the chamber is connected to the radioactive slurry storage tank located in the isolation chamber; the vacuum pipe passes through the chamber wall of the isolation chamber, and one end is located in the isolation chamber to connect with the filtrate storage tank, and the other end is located outside the isolation chamber to connect with the vacuum device. The equipment in the isolation room is simple in structure, safe and reliable, and requires no maintenance; it can realize the transmission of radioactive slurry for filtration, and can deliver the slurry to be filtered to the filter and separate the filtrate. The transmission is relatively complete and can effectively avoid radioactive spillage.

Description

technical field [0001] The invention belongs to the technical field of nuclear fuel reprocessing, and in particular relates to a conveying device and system for filtering radioactive slurry. Background technique [0002] In the process of PUREX water process for nuclear power plant spent fuel, radioactive fluid transport plays an important role in the reprocessing process. Spent fuel reprocessing involves the operating conditions of filtering the precipitated slurry. Generally, several methods such as pressure filtration, suction filtration and centrifugation are considered. When transporting radioactive slurry to the filter device, the maintenance-free material liquid delivery method should be selected. In addition, since the slurry contains a large number of solid particles, it is necessary to ensure complete slurry delivery, overcome large filtration resistance, and avoid radioactive spillover and other operational and safety requirements. For the above-mentioned several...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21F9/06G21F9/20
CPCG21F9/06G21F9/20
Inventor 苑斯雯李思凡李鑫陈勇李硕蔡梦琦熊佳丽
Owner CHINA NUCLEAR POWER ENG CO LTD