SU1729520A1 - Apparatus for extinguishing liquid metal heat transfer agents - Google Patents

Abstract

Usage: in the field of fire protection of nuclear power facilities. SUMMARY OF THE INVENTION: The device consists of a closed container with a drain channel, to the top of which a pan with a lid is pivotally attached, on the other hand the pan is suspended on a low-melting holder placed in a glass attached to the pan, which has an overflow hole for the liquid metal coolant during slow filling of the pan. With a small spill, the liquid metal coolant is localized in the pan, with a large liquid metal coolant overflows the pan, heats the holder in the glass, which opens, and the liquid metal coolant is discharged into the container. In a salvo passage, the liquid metal coolant is poured into the glass through its upper slots. 1 hp f-ly. 1 il.

Description

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 The invention relates to fire fighting equipment and is intended to extinguish emergency spills of liquid metal coolants of power plants.

The aim of the invention is to reduce metal consumption and simplify the design of the device, manufacture and operation, and improve the conditions for placing and mounting the device, as well as draining the coolant in an accident.

The device comprises a tank consisting of upper removable and lower parts, a pallet hingedly connected to the tank, a lid of the pallet with drain holes for the liquid metal coolant and a pallet holder, the lid of the pallet with the recessed part facing the inside of the pallet.

It is equipped with an overlap with a hole installed above the upper part of the tank, and is equipped with a cup, the side walls of which have bypass holes made at the level of maximum filling of the pallet, the cup being installed in the recess of the lid of the pallet and rigidly connected to it, the pallet holder is made in the form of a composite rod , one end of which is rigidly connected to the circuit overlapping of the container, and the other is placed inside the glass and rigidly connected to its bottom part, and the parts of the rod are fastened with a low-melting alloy.

The drawing shows a schematic diagram of the device.

The device is made in the form of a two-part container. Top removable part 1 with overlap with drain hole 1

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2, under which is placed on the hinge 3 a pallet 4 with a lid 5 fastened to it, which has a recess 6 with a drain hole 7, as well as a cap 8 above the cup 9, rigidly fastened to the lid. The side walls of the glass have bypass holes 10, made at the level of maximum filling of the pallet. The pallet holder is made in the form of a composite rod, the lower end 11 of which is placed inside the glass, rigidly connected to the bottom part and fastened with a low-melting alloy 12 with its upper part 13, the end of which is rigidly connected to the ceiling.

A drain valve 17 is formed in the lower part of the tank 14 using partitions 15 and 16. The upper part of the partition 16 is made in the form of a flap 18 on the hinge 19 with a lever-crank actuator 20 and 21. The tank is closed by a horizontal overlap 22 made of thermally insulating material, under overlapping baffles 23 are provided in the partitions. A latch 24 is installed on the outer wall of the container, and holes 25 and 26 are provided for it in the walls of the pallet and the container.

Claims (2)

Claims 1. Device for extinguishing liquid metal coolants, containing a tank consisting of a removable top and bottom parts, a pallet hingedly connected to the container, a lid of the pallet with drain holes for the liquid metal coolant, a recessed part facing the inside of the pallet, characterized in that, in order to reduce metal consumption and simplify the design, it is provided with an overlap installed above the upper part of the container and having an opening, and a glass, the side walls of which have overflow holes made at the level of maximum filling of the pallet, installed in the recess of the lid of the pallet and rigidly connected to it, the pallet holder is made in the form of a composite rod, one end of which is rigidly connected to a removable overlap, and the other is placed inside the station Akana and rigidly connected with a removable overlapping capacity, and parts of the composite rod fastened fusible alloy. 2. The device according to claim 1, wherein the container has a horizontal overlap, made of thermal insulation material, having an opening, and having one or more vertical partitions, forming with the side wall of the container or between each other a drain channel with a flap hinged on the upper end of the vertical septum and a lever mechanism for turning the flap attached to the container.