RU137567U1 - EMERGENCY AND RESCUE CAMERAS OF THE AMMA BLOCK-MODULAR TYPE - Google Patents

Abstract

A shelter unit designed to protect groups of people in areas with breathing air, which is a mobile building consisting of an air lock and a main chamber, including an air curtain system opposite the entrance, a respiratory protection device installed in the main camera, personal protective equipment, rows of benches, characterized in that the unit is equipped with a system for automatically closing and unlocking doors, filtering devices are located inside the air lock as well as in the main chamber, the main chamber of a system for replenishing oxygen.

Description

A utility model is a device that is a mobile building designed to protect groups of people in areas with air that is not suitable for breathing.

From the prior art to date, the closest analogue is the refuge camera, described in patent RU 2416723 C2 of 04/20/2011.

The shelter chamber described in the patent, intended for use in mines, is made in a movable sealed enclosure, which includes a sealed tent, which is deployed to provide a protected atmosphere for miners, a gas scrubber that can operate from a pneumatic drive or an accumulator, cylinders with compressed air and oxygen A cooling system that works without electrical power; the tent also has an airlock purged with compressed air, allowing you to enter the room without polluting clean air.

The claimed utility model, similar to the refuge chamber described in the patent, includes a sealed housing (block module), filtering devices that perform the function of a gas scrubber, a cooling system, and an air lock. The disadvantage of the described analogue is the presence of a tent, which must be further developed to provide a protected atmosphere, and the separation of the air lock with the main camera is made in the form of a manual zipper. Also, in the described analogue, most of the operation operations of the refuge chamber are carried out manually, which entails additional time costs for launching the refuge chamber into operation. These shortcomings are caused by the requirements for shelter cameras located in underground mines: mobility, the ability to quickly move and the lack of constant power supply.

At the same time, the utility model, unlike the analogue, is mainly intended for stationary use at objects in which air unsuitable for breathing may occur.

The purpose of the proposed technical model is to build an ergonomic and reliable block shelter from air, unsuitable for breathing, and equipping it with life support equipment.

The solution to this problem is achieved by the fact that in the chamber of the block shelter creates excessive air pressure due to the tightness of the module structure and, therefore, the penetration of contaminated air into the shelter from the outside is excluded.

The technical result is achieved due to the regeneration of air inside the block shelter, as well as due to the absorption of exhaled carbon dioxide by special devices. At the same time, the amount of oxygen in the module is replenished, if necessary, cooling the interior of the chamber.

The essence of the proposed model is illustrated by a drawing (Fig. 1), which shows a container-type chamber with working and standard equipment.

The emergency camera is a block-modular, divided into an air lock (left) and the main camera (right). The emergency chamber includes benches 7 for accommodating personnel located along the long sides of the block; an air curtain system 6 mounted opposite the entrance; ventilation system 3; inner door 5 and emergency systems, including respiratory protection device 1, filtering devices 2 and 4, lighting equipment, air conditioning system.

The device operates as follows:

a) "Standby" mode:

- in the “Standby” mode, the air conditioning system will maintain the specified climatic conditions inside the chamber. The ventilation system 3 will pump fresh air from the outside and maintain a slight overpressure in the container. In the event of an accident, if hydrogen sulfide enters the ventilation system, it will be filtered out;

b) “Emergency operation” mode:

- “Emergency operation” mode inside the unit will be activated after pressing the button outside the unit. The air curtain system 6, installed opposite the entrance, will begin to work, preventing any sources of danger from entering the air lock while personnel go inside.

When activated for the first time, the airlock will operate as a permanent system, and both doors will be open so that most of the personnel (with personal temporary protective equipment) enter the shelter. At this time, the filtering devices 4 inside the air lock and the filtering devices 2 in the main chamber will filter out dangerous substances that have fallen into the block shelter.

When the personnel enters the block shelter and the inner door is closed for the first time, the air lock lock will be activated and the outer door, which is actuated by a spring, will be closed automatically.

In the event that not all personnel entered the block shelter initially, the rest will be able to penetrate into the chamber through the air lock. For this reason, the inner door will always be closed until the outer door is closed.

During the closing of the doors, the air pressure in the airlock will be maintained by means of an installed ventilation system 3, which will filter out hydrogen sulfide. When the gas detector shows that the air lock no longer contains hazardous impurities, the door blocking system will allow you to open the inner door (in this case, the signals are visually displayed in red / green).

The camera with personnel is controlled by a respiratory protection device 1 and two filter elements of the ventilation system 2.

The respiratory protection device monitors the overpressure inside the chamber. Additionally, the respiratory protection device maintains the quality of the inhaled air through the installed air purification filter. Thus, the quality of the inhaled air will always be less than 1% for CO ₂ and about 21% for O ₂ .

In the event of an accident, power supply to the shelter unit will be provided from an external power source. If the power supply for some reason is interrupted, all critical systems inside the shelter unit will be able to operate for 3 hours from an uninterruptible power supply (except for the air conditioning system).

Claims (1)

A shelter unit designed to protect groups of people in areas with breathing air, which is a mobile building consisting of an air lock and a main chamber, including an air curtain system opposite the entrance, a respiratory protection device installed in the main camera, personal protective equipment, rows of benches, characterized in that the unit is equipped with a system for automatically closing and unlocking doors, filtering devices are located inside the air lock as well as in the main chamber, the main chamber of a system for replenishing oxygen.

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