Proof device

 

The invention relates to the field of protective structures of civil defense in order to prevent penetration through them the shock wave of a nuclear explosion, and more particularly relates to structures explosion of devices designed for installation in air intake and exhaust ducts of protective structures. Proof device includes a support frame with a flange made in the form of a support grid, to which the hinge is attached a spring-loaded springs the blade at a fixed angle to the grid, for example, 45°, and a frame fixing the specified angle. Spring-loaded blades are made with the profile of the edges, which when paired with each other in the closed position form a labyrinth channels. The length of the labyrinth channel is 0,10-0,25 width of the blades, i.e., L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade. The technical result of the invention is to reduce the impact of the shock wave. 1 C.p. f-crystals, 3 ill.

The invention relates to the field of protective structures of civil defense in order to prevent penetration through them the shock wave of a nuclear explosion, and more particularly relates to structures against the deposits.

The prior art anti-explosion device, see “instructions for installation and operation of explosion devices CCS-8 CCS-25 and CCS-50”, Military publishing house of the Ministry of defense of the USSR, Moscow, 1979

With the development progress and use of currently advanced technologies for the design and creation of the new equipment in any branch of engineering, the more stringent requirements of the Ministry of Defence to the structures and operation of explosion devices, the global urgency of this problem, the above model explosion of devices selected as a prototype of the proposed device, which today should be improved to meet international standard.

Known anti-explosion device (CCS) are assembled from standardized protective sections mounted on the support frames.

Uniform section (see Fig.1 Instructions...) represents a frame of rectangular shape made of parts 80×50×5 mm, mounted in the grille. To the grid by means of hinges and axles are mounted twelve spring-loaded dural blades with a thickness of 2 mm, the Blades are held by the springs and the movable frame at an angle of 45° to the grid.

Protamine, with the help of special bolts. For installation of CCS-8 in the frame there are four anchor bolt holes diameter 16 mm

Blast unit CCS-25 (see Fig.3 Instructions...) consists of a frame, door frame and attached three sections.

Reference and door frame are connected by hinges and two latches. The hinges and locks allow adjustment of the density tucked up door frame to the base frame, between which there is a rubber gasket. In order to ensure sealing between the sections and door frame padded paronit strip. For installation of CCS-25 in the base frame has eight holes for anchor bolt diameter 16 mm

Proof device PSM-50 (see Fig.4 Instructions...) consists of a base frame with two struts, one of the door frame, three sections, mounted on the door frame, and three sections, mounted on a support frame. Door frame is connected to a supporting frame by hinges and two latches. The hinges and locks allow adjustment of the density of the preload of the door frame, between which there is a rubber gasket. Between sections and door frame laid paronit strip. For attachment RCS-50 in the base frame there are twelve holes for anchor bolts with a diameter of 24 mm

When Y overrides the living section of the reference lattices (ventilation ducts). For anti-explosion device passes a small part of the shock wave with time and pressure, which today does not conform to the standards set by the Ministry of Defence.

Mounting and installation the famous explosion of the device is as follows.

Anti-explosion device CCS-8 CCS-25 and CCS-50 can be installed in the air intake and exhaust ventilation vertical or horizontal channels (see Fig.5 Instructions...).

When installed in horizontal channels-proof device can block the channel or be placed in the side wall.

Unified protective section (see Fig.1 Instructions...) can be installed without base frame, if there is no need to open it. In this case, the section is bolted to the structures of the buildings.

In relation to the requirements set forth in the “instructions for installation and operation of explosion device before mounting the explosion of devices should:

- check and adjust if necessary efforts to unseat spring-loaded blades;

- check the functioning locking devices;

to ensure the fastening of the explosion of devices CCS-8 CCS-25 and CCS-50 in the tightness of the connection between the base and frame anti-explosion device, what is installed rubber gasket;

- door frame explosion devices typically open in the left side. If the conditions of installation it is necessary to provide the opening of the door frame to the right side, the anti-explosion device should be deployed to 180°, remove the partition and install their blades down.

The work of the famous explosion of the device is as follows.

Before using the explosion of devices check:

- the angle of the blades;

- efforts to unseat spring-loaded blades:

- tightness of the fit of the door frame to the base frame;

- tightness of the seal support frame to the base;

- the tightening of the anchor bolts.

After that, the blade sections are mounted at an angle of 45° to the reference lattice. The setting angle of the blades is carried out by moving the movable frame by means of two adjusting screws, which vivenciada to lock the movable frame in the limit (when the health and proper location of the stop).

During operation of the blast device spring blades can reduce its elasticity. In this case, the blades will be closed when the costs of air, but less to shoot moving grate, the plate that holds the axis of the blades, remove the axle and blades with springs. After that springs to stretch, to install all the parts and re-check the effort to unseat each blade.

The moving blades set at an angle of 45° to support the grille, should occur from the weight of the mass of 1.1 to 1.2 kg, lying on the edge of the blade.

Support frame explosion devices shall be tightly fit to the base. Therefore it is necessary to check the serviceability of a sealing gasket between the base and the supporting frames and the tightening of the nuts on the anchor bolts.

Door frame explosion of devices in the closed position shall be tightly fitted to the base frame. If the frame is loosely attached to the base frame or closed, it is necessary to adjust the hinge device with nuts by tightening or loosening. Defective sealing strip on the door frame must be restored or replaced.

Anti-explosion device when open the door frames must provide an emergency exit from a building. In addition:

- explosion devices when off ventilation may lead to icing due to overflow from the melting ventilation) must be closed;

in order to protect from freeze-proof device in the exhaust ducts must be installed in places where the temperature will not be below 0°C;

- transport and storage explosion of devices in warehouses only allowed with open blades. Laying explosion of devices in a stack of Pets with a gasket between them wooden beams, providing open position of the blades.

The disadvantages of the known devices are low leak valve body in the closed state, increased the time of locking of the locking member, which is connected with increased by the stroke of the locking member, and omissions traces of the shock wave, and with them the products of infection, after its direct impact on the shut-off body.

The main disadvantage of the listed activities necessary to implement the stable operation of explosion known devices is that the model of the known device today, in the age of technological progress, obsolete, requires improvements of the design, and the creation of a competitive internal and external market explosion of device with indicators relevant international standards, and natures is to be mentioned disadvantages in the prototype by creating a unique design, the operation of which is ensured:

- reducing the impact on the human factors of the shock wave by reducing the time of exposure by closing the shut-off organ, namely by reducing the time overlap of the living section of a pass hole of the support grates (ventilation ducts), and ensure maximum tightness in the closed state,

- as well as reducing the impact of traces of the shock wave by fixing the locking member in the closed state.

The problem is solved due to the fact that the proposed design of the anti-explosion device includes a support frame 1 with a flange 2, is made in the form of a support grid, to which the hinge is attached spring-loaded by springs 3 blade 4 at a fixed angle to the grid, for example, 45°, and the frame 5 commit the specified angle.

According to the invention:

spring-loaded blades 4 are made to the profile of the edges 6, which when paired with each other in the closed position form a labyrinth channels 7.

The length of the labyrinth channel is 0,10-0,25 width of the blades, i.e., L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade.

To limit penetration of the traces of the shock wave the blade 4 after characteristics in comparison with the known devices achieves the technical effect of the labyrinth seal:

education labyrinth of channels allows you to provide the minimum clearances between the edges with the local resistance, providing large fluctuations in air pressure at a given length of the labyrinth channel.

The requested geometry is optimal for this type of shut-off organ, because the increase in the width of the blade is associated with increased it by passing that, given the speed of the shock wave increases the time of rotation of the blades.

Limit value according to the length of the labyrinth channel on the width of the blade is determined experimentally and is

L=(0,10-0,25); where L is the length of the labyrinth channel; the width of the blade.

Together it is possible to reduce the time overlap of the living section of a pass hole of the support grates (ventilation ducts) and to maximize closed tightness formed by the mating surfaces of the edges of the blades labyrinth seal.

It is known that after the passage of the shock wave come the periods of oscillations passing traces, which may again affect people in the asylum, including through the inclusion of radioactive contamination. Therefore, after the passage of the shock wave off ers the possible traces of the shock wave due to the blade 4 after exposure to shock waves securely clamps 8 in the closed position.

The invention is confirmed by the drawings:

in Fig.1 shows an explosion drawing of the device in functional open state;

in Fig.2 shows the node podpruzhineny blades;

in Fig.3 - state device in the closed position.

Proof device consists of a support grid 1, which takes the force of impact of a shock wave and provides a tight fit of the blades in the closed state. With the help of a flange 2 of the device through the sealing gasket (not shown) is attached to the exhaust or supply the mine. The supporting grid 1 are articulated blades 4, which are biased by springs 3. Frame 5 fixing angle of the blade 4 relative to the reference grating 1 is also pivotally connected with the latter and enables fixing of the specified angle of inclination of the blade 4 relative to the reference grid 1 (from almost 0 to 90°). The angle is set to the preset value (for example, at 45°) with screws (item not shown).

On the support bars 1 set the hooks 8, which provide a record of the blades in the closed state after delaurentis channels 7.

Proof device operates as follows.

Anti-explosion device is installed in the intake or exhaust ducts on the flanges 2 through a sealing gasket (not shown).

In normal conditions the blades 4 of the device are open and freely pass air into the room or from the premises. Under the action of a shock wave spring blades 4 rotate on axes and overlapping the live section of the support grid 1. At the same time the force of the shock wave frame 5 of the fixing angle of the blade 4 relative to the reference grating is pressed to the closed blades and grippers 8 is fixed in the closed position of the latter. Thus, put a reliable barrier to the penetration of the shock wave and its traces through the intake or exhaust channels.

However, thanks to the optimally chosen parameters and the configuration of the edges of the profiles, when pairing them with each other in the closed position of the blades is formed tight labyrinth seal, the claimed device is provided to at least reduce the impact on the human factors of the shock wave and its consequences. Today, declared explosion device complies with trebovaniyam, providing the needs of the defense industry and the security of civilians.

Claims

1. Proof device that includes a support frame 1 with a flange 2, is made in the form of a support grid, to which the hinge is attached spring-loaded by springs 3 blade 4 at a fixed angle to the grid, for example, 45°, and the frame 5 commit a specified angle, wherein the spring-loaded blade 4 is made with the profile of the edges 6, which when paired with each other in the closed position form a labyrinth channels 7, the length of the labyrinth channel is 0,10-0,25 width of the blades, i.e.,

L=(0,10-0,25),

where L is the length of the labyrinth channel;

In - the width of the blade.

2. Proof device under item 1, characterized in that the blade 4 after exposure to a shock wave is fixed by the clamps 8 in the closed position.



 

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