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
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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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