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Compact type steam generator secondary-side tube plate drying device

A technology of steam generator and drying device, which is applied in drying, drying machine, drying gas arrangement, etc., which can solve the problems of easy fire, contamination risk, and large volume of equipment, and achieve high equipment reliability and eliminate Fire risk, effect of structural firmness

Pending Publication Date: 2020-06-30
RES INST OF NUCLEAR POWER OPERATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a compact steam generator secondary side tube sheet drying device for the technical problems of existing equipment such as easy fire, contamination risk, and large volume.

Method used

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  • Compact type steam generator secondary-side tube plate drying device
  • Compact type steam generator secondary-side tube plate drying device

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] This embodiment provides a compact steam generator secondary side tube sheet drying device 6, the structure of which is as follows figure 1 As shown, it includes a gas source connector 1, a heating and gas distribution component 2, a control component 3, a mounting flange 4 and an air induction nozzle 5.

[0029] The drying device 6 of this embodiment is connected to the compressed air system in the nuclear island through the air source connector 1, and uses the compressed air of the nuclear island system such as the public compressed air distribution system SAT as the input air source. Such as figure 2 As shown, the air pipe 10 connected to the compressed air system in the island is firmly connected with the air source joint 1 in the form of a push-in joint, so as to provide a stable and clean air source for the drying devic...

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Abstract

The invention belongs to the technical field of steam generator overhauling, and particularly relates to a compact type steam generator secondary-side tube plate drying device. The device comprises agas source joint, a heating and gas distributing component, a control component, a mounting flange and an air drawing nozzle; the mounting flange is fixedly connected with a steam generator secondary-side hand hole, so that the whole drying device is mounted on a steam generator; the gas source joint is connected with a compressed air system in a nuclear island, even heating and gas flow distribution are performed on compressed air by the aid of the heating and gas distributing component, the compressed air is blown out of the air drawing nozzle, and a steam generator secondary-side tube plateis dried. The device has the advantages of compact size, firm structure and convenience in operation, and the risks of fires and contamination are eliminated essentially. After the size and the powerof the drying device are adjusted, the device can also be applied to drying work for other containers such as a steam generator primary-side water chamber and the like.

Description

technical field [0001] The invention belongs to the technical field of steam generator maintenance, and in particular relates to a compact steam generator secondary side tube sheet drying device. Background technique [0002] The steam generator (SG) heat transfer tube of a nuclear power plant is an important primary circuit pressure boundary, and regular video inspection of the SG secondary side is required to ensure the integrity of the SG heat transfer tube and formulate maintenance measures according to the cleanliness status. According to the process characteristics of SG secondary side video inspection, it is necessary to ensure that the SG secondary side tube sheet is in a dry state during video inspection. Therefore, before each video inspection, it is necessary to dry the SG secondary side tube sheet to ensure the smooth progress of the SG secondary side video inspection. [0003] At present, the commonly used SG secondary side tube sheet drying equipment has the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B21/00F26B21/10F26B21/12F26B25/00
CPCF26B21/001F26B21/004F26B21/10F26B21/12F26B25/009
Inventor 刘一博熊前山贺小明胡鑫雷霆张文波柳聪李杰
Owner RES INST OF NUCLEAR POWER OPERATION
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