JPH0145305Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to the ventilation pipe device of nuclear silter.
More specifically, the present invention relates to an improved ventilation pipe device that prevents water from entering through the opening to the outside during a flood.

"Conventional Example" In general, a nuclear shelter is provided with a ventilation pipe system, which consists of an intake pipe that takes in outside air and an exhaust pipe that exhausts internal air, so that evacuees can breathe. Conventionally, these intake pipes and exhaust pipes are opened downward at a predetermined height above the ground. The conventional ventilation pipe device configured in this manner can prevent nuclear contaminants falling from the sky from directly entering the intake pipe or exhaust pipe.

``Problem that the invention aims to solve'' However, with such conventional ventilation pipe equipment, if the water level rises around the above-ground openings of the intake and exhaust pipes when a flood occurs, they cannot be removed. There is a problem that water may enter the nuclear shelter from the opening.

This idea is an attempt to solve these problems.

``Means for solving the problem'' This idea aims to solve the above problem.
Openings above the ground of the intake pipe and exhaust pipe that protrude from the inside of the nuclear shelter to the ground are opened downward, filters are respectively provided to cover the openings, and the intake sides of the filters are closed and opened. locking a watertight lid so that it can move up and down with a predetermined stroke, and opening the filter using its own weight;
Constructed in a float type that closes with water, and
A technical measure is taken to provide a sealing member for making the watertight lid watertight and a magnet for maintaining the suction side of the filter in a watertight closed state with a predetermined pressure.

"Example" Hereinafter, this invention will be explained in detail with reference to the drawings.

As shown in FIG. 2, the inside of the nuclear shelter 2 equipped with the ventilation pipe device 1 according to this invention includes an emergency aerospace chamber 7, a living room 8,
Sanitary equipment room 9, aerodynamics room 10 and machine room 11
It is divided into. On the floor of the machine room 11, as shown in FIG. An intake blower 15 is disposed at. An inlet pipe 16 of the blower 15 is connected to an intake pipe 18 of the ventilation pipe device 1 via a communication pipe 17, and an outlet pipe 19 thereof is connected to an air supply pipe 20 via an air cleaning device 18. This intake pipe 18 is connected to the machine room 11
Each blowout nozzle 2 extends from
It has 1... The above living room 8 and sanitary equipment room 9
, each inlet 23 of the exhaust pipe 22 of the ventilation pipe device 1,
24 are respectively opened.

The external portions of the intake pipe 18 and the exhaust pipe 22 are vertically raised from the machine room 11 to the outside, and by bending their upper ends into an inverted J shape, openings 25 and 26 above the ground are formed. Open downward. Each opening 25, 26 has a filter 27, 28.
Furthermore, a float-type watertight lid 29, 3 is provided.
0 is attached. That is, as shown in Figure 1,
Each vertical hole 3 is provided in the center of each of the filters 27 and 28.
1 and 32 are provided, and the lid body 3 is formed into a bowl shape.
Rods 35 and 36 for elevating and lowering guides raised from the center of the rods 3 and 34 are inserted into the vertical holes 31 and 32 so as to be slidable up and down. A retainer 37, 38 is fixed to the upper end of each rod 35, 36. Magnets 39, 40 are built into the lid bodies 33, 34, and sealing members 41, 42 are attached to seal the openings 25, 26 in a watertight manner when the lids are closed. In this case, at least the openings 25 and 26 of the intake pipe 18 and the exhaust pipe 22 are formed of a magnetic material such as iron or steel, and in this embodiment, the intake pipe 18 and the exhaust pipe 22 are entirely made of steel pipes. It is formed.

In Figure 2, 43 is an escape exit, 44 is an escape ladder, 45 is an airtight door, 46 is an emergency exit, 47 is an escape ladder, 48 is an airtight door, 49 is an entrance/exit, and 50
indicates an airtight door.

To summarize and describe the main parts of this embodiment, the openings 25 and 26 above the ground of the intake pipe 18 and the exhaust pipe 22 that protrude above the ground from inside the nuclear shelter are opened downward, and the openings 25 and 26 are opened downward. Filters 27 and 28 are provided to cover the filters 27 and 28, respectively.
Watertight lids 29 and 30 that close and open the suction side of the watertight lids 7 and 28 are locked so as to be movable up and down with a predetermined stroke, and the watertight lids 29 and 30 open the filters 27 and 28 by their own weight. , the watertight lid 29 is configured as a float type that closes with water;
Sealing members 41 and 42 that provide watertight sealing at portions facing the filters 27 and 28 of 30, and the filters 2
This means that magnets 39 and 40 are provided to maintain the suction sides of the pumps 7 and 28 in a watertight closed state with a predetermined pressure.

In the ventilation pipe device 1 of the nuclear shelter 2 configured in this way, as described above, the float-type watertight lids 29, 30 are provided at each opening 25, 26, so in the event of a flood, each watertight lid 29, 30 is closed. is raised by its buoyancy, and if the water level rises above a height where there is a risk of water intrusion from the openings 25, 26, each opening 25, 26 is automatically closed in a watertight manner. Water intrusion from the openings 25 and 26 can be reliably prevented. Further, while the openings 25 and 26 are closed by the watertight lids 29 and 30, the watertight lids 29 and 30 close the openings 2 of the magnets 39 and 40.
Each of the watertight lids 29 and 30 is fixed in a closed state due to the adsorption force on the watertight lids 5 and 26 and the buoyancy of the watertight lids 29 and 30. During this time, the air accumulated in the compressor 14 is discharged to prevent the evacuees from suffocating. When the flood is over, the evacuees go to the ground through the escape exit 43, the emergency escape exit 46, or the entrance 49, and manually pull the watertight lids 29, 30 away from the openings 25, 26. Open it.

"Effects" As explained above, the ventilation pipe device for a nuclear shelter according to this invention opens the tip openings of the intake pipe and exhaust pipe that protrude above the ground from the inside of the nuclear shelter downward. A filter is provided to cover each filter, and a watertight lid that closes and opens the suction side of the filter is locked so that it can move up and down with a predetermined stroke. It is configured as a float type that is closed by a watertight lid, and is provided with a sealing member to make the watertight lid watertight, and a magnet that maintains the suction side of the filter in a watertight closed state with a predetermined pressure, so that it can be closed at all times. The system takes in and exhausts clean air through a filter, but if the water level rises above a height where there is a risk of water intrusion from the above openings during a flood, it can be used without using a special power source, using its own weight and buoyancy. By using a simple method, each opening at the tip of the intake pipe and exhaust pipe can be sealed watertightly with a watertight lid, and the floating watertight lid can be prevented from moving up and down inadvertently due to undulating water. Once they are closed, the magnets ensure that the closed state is maintained at a predetermined pressure, thereby preventing water from seeping into the interior of the nuclear shelter from these openings.

Of course, this invention is not limited to the one embodiment described above. For example, each watertight lid 29, 30
may be made of a magnetic material, and each opening 25, 26 may be provided with a magnet. In addition, a permanent magnet is provided in each of the watertight lids 29 and 30, and an electromagnet is provided in each opening 25 and 26, and by reversing the polarity of the electromagnet, the opening and closing of the watertight lids 29 and 30 can be remotely controlled from inside the nuclear shelter 2. It may be configured to do so.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of the essential parts of a ventilation pipe device 1 according to this invention, FIG. 2 is a vertical sectional view of a nuclear shelter 2 equipped with the ventilation pipe device 1, and FIG.
2 is a cross-sectional plan view of the machine room 11 of FIG. 2...Nuclear shelter, 18...Intake pipe, 22...Exhaust pipe, 25...Opening, 26...Opening, 29...Watertight lid, 30...Watertight lid, 39...Magnet, 40...Magnet.

Claims (1)

[Scope of utility model registration request] The above-ground openings of the intake pipe and exhaust pipe protruding from the inside of the nuclear silter above the ground are opened downward,
A filter is provided to cover each opening,
A watertight lid that closes and opens the suction side of the filter is locked to the filter so as to be movable up and down with a predetermined stroke,
The watertight lid is configured as a float type in which the filter is opened by its own weight and closed by water, and a sealing member for making the watertight lid watertight and a suction side of the filter are arranged in a predetermined manner. A ventilation pipe device for a nuclear silter, characterized in that it is equipped with a magnet that maintains the watertight closed state with pressure.