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Rail crossing fire shutter and its construction method

A technology of fire shutter and construction method, which is applied in the direction of fire doors, building structures, building components, etc., and can solve the problems of failure to meet the requirements of the 3h fire barrier specification, the inability to meet the fire protection and smoke prevention airtight requirements of the fire barrier, and the incompleteness of the fire barrier, etc. question

Active Publication Date: 2022-07-05
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual operation process, due to the traffic requirements of the bottom rail, the fireproof and smoke-proof airtightness requirements of the fire barrier cannot be met at the contact part of the fire shutter and the ground, resulting in the fire shutter cannot be completely sealed with the ground, and the fire barrier is not complete. It cannot meet the specification requirements of 3h fire barrier

Method used

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  • Rail crossing fire shutter and its construction method
  • Rail crossing fire shutter and its construction method
  • Rail crossing fire shutter and its construction method

Examples

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Embodiment 1

[0032] This embodiment provides a rail crossing fire shutter, in particular a rail crossing fire shutter for a train or a transfer trolley in an industrial plant, a nuclear power plant, and a spent fuel reprocessing facility.

[0033] When the goods are transported by rail, and the transfer rail needs to pass through fire barriers such as firewalls or factory boundaries, it is necessary to set up a passage hole on the fire barrier, and add a fire shutter door that automatically closes in the event of a fire on the hole as a compensation measure for the fire barrier. , then the fire shutter described in this embodiment needs to be used.

[0034] figure 1 A schematic plan view showing the track crossing the fire shutter; figure 2 A cross-sectional schematic diagram showing the track crossing the fire shutter, i.e. figure 1 Section 1-1 in the middle; image 3 show figure 2 Zoom in on the detail of the node in the middle. like Figure 1-3 As shown, the fire shutter include...

Embodiment 2

[0050] The present embodiment provides a method for constructing a rail crossing fire shutter, specifically a construction method for a rail crossing fire shutter of a train or a transfer trolley in an industrial plant, a nuclear power plant and a spent fuel reprocessing facility.

[0051] like Figure 4 As shown, the construction method includes the following steps S101 to S104.

[0052] S101. Set fire shutter doors at the passage openings opened on the fire barrier;

[0053] S102. Set a threshold on the ground directly below the fire shutter door;

[0054] S103. Set a gap corresponding to the passage width of the means of transport at the part where the track crosses on the threshold;

[0055] S104. A fireproof expansion sealing strip is arranged in the gap.

[0056] Among them, the main raw material of fireproof expansion sealing strip is expandable graphite, also known as flexible graphite. Expandable graphite is made of natural flake graphite through chemical treatmen...

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Abstract

The present invention provides a rail crossing fire shutter and a construction method thereof. The fire shutter includes: a fire shutter door set at the passage opening opened on the fire barrier, and a threshold set on the ground directly below the fire shutter door; the threshold is set at the position where the rail passes through with the width of the passage of the vehicle. Corresponding gaps are provided with fireproof expansion sealing strips in the gaps. In the present invention, a threshold is installed on the ground directly below the fire shutter door, and a gap corresponding to the passage width of the transportation means is set at the position where the rail passes on the threshold, and a fire expansion sealing strip is arranged in the gap, so that the rail transported The passing width is limited to the expansion range of the fire-proof expansion sealing strip, and it also makes an effective supplement to the fire-proof sealing performance of the fire-proof rolling shutter door, meeting the fire-resistance limit requirements of the fire-proof barrier and meeting its fire-proof, heat-insulation and smoke-proof requirements.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a rail crossing fire shutter and a construction method of the rail crossing fire shutter. Background technique [0002] In spent fuel reprocessing facilities, the transfer of product containers between plants often relies on transfer trolleys, and the transfer of spent fuel shielding containers is often carried by trains. The laying of the equipment usually needs to pass through the fire compartment or workshop. At present, it is clearly stipulated in the "Code for Fire Protection of Building Design" GB50016-2014 (2018 edition) that a 3h firewall should be set up between adjacent workshops or between adjacent fire compartments as a barrier. In order to achieve the integrity of the fire barrier, it is usually necessary to set the fire shutter for 3 hours (that is, the fire resistance rating is not less than 3 hours) in the fire barrier. [0003] In the specific desig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B5/16E06B9/08E06B1/70E06B7/16
CPCE06B5/161E06B5/164E06B9/08E06B1/70E06B7/16E06B2001/707
Inventor 李园园赵薇邵瑛李丹
Owner CHINA NUCLEAR POWER ENG CO LTD
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