CN210637005U - Assembled modular explosion-proof wave valve - Google Patents

Abstract

The utility model relates to a can assemble modularization blast proof valve, including a plurality of cell cube, the cell cube includes activity unit, spacing seat, valve top cap, bolt and reset spring, the activity unit is fish belly type hollow structure, spacing seat sets up the displacement of activity unit in blast vertical action face direction is restricted to activity unit both sides, and the valve top cap is installed in the valve both ends and is restricted the horizontal direction displacement of activity unit under the blast vertical action, valve top cap, spacing seat side are equipped with fire-resistant sealing backing plate; one side of the valve top cover is provided with a bolt, the other side of the valve top cover is provided with a groove, and the adjacent unit bodies are tightly connected and fixed with the refractory sealing gasket through the matching action of the bolt and the groove and the extrusion action between the refractory sealing gaskets. The problems that the suspended pendulum type valve can prevent smoke but has low wave absorption rate and the rubber tube type valve has high wave absorption rate but cannot prevent smoke are solved fundamentally. Can be widely applied to civil air defense engineering.

Description

Assembled modular explosion-proof wave valve

Technical Field

The utility model relates to an explosion-proof ripples valve especially relates to an explosion-proof ripples valve that can assemble, the modularization, and it is that the wave absorption rate is high, and can use the explosion-proof ripples valve at civil air defense engineering exhaust port, belongs to civil air defense engineering protective apparatus field.

Background

The civil air defense project is a special underground building with protection requirements, the mouth part of the civil air defense project is not only the part which is most easily exposed, but also the weak part which is most easily damaged in the whole project, and therefore, the protection capability of the mouth part is enhanced, which is the important content for ensuring the project safety.

The mouth of the project mainly includes a man doorway and a vent. The explosion wave preventing valve is one kind of protecting equipment set in the ventilation port or smoke exhaust port for ensuring the safety of the engineering worker and equipment and the continuous ventilation of the engineering when blasting or impacting load is applied, and is used in combination with diffusion chamber. Under the action of shock wave overpressure, the explosion-proof wave valve can be quickly and automatically closed, most of shock waves are blocked outside the engineering, and a small part of shock waves are weakened through the diffusion chamber to reach the allowable pressure. After the shock wave, the valve can automatically reset in time, and normal ventilation in the engineering is not influenced.

According to the material division, the explosion-proof wave valve can be generally divided into a suspension swing type valve and a rubber tube type valve.

The suspended pendulum type explosion-proof wave valve consists of a door frame, a bottom plate, a suspended pendulum hinge, a buffer rubber pad, a limiter and the like. The suspension plate keeps opening a certain angle (generally less than 15 degrees) under the effect of dead weight eccentric moment at ordinary times, and ventilation is realized through a gap between the suspension plate and the bottom plate and the opening on the bottom plate at ordinary times. When blasting happens, the suspended swinging plate is closed rapidly under the action of overpressure of shock waves to block the ventilation opening and prevent the shock waves from entering, and the suspended swinging plate automatically resets after the shock waves pass, and the ventilation state is recovered. Because the suspension swing plate is a steel component, the inertia is large, the shock wave can not be quickly closed under the instantaneous action, and the situation that part of the shock wave penetrates through a gap to enter the interior of the engineering is inevitable, so the wave absorption rate is low, certain threats are caused to the safety of personnel and equipment in the engineering, and a diffusion chamber is required to be configured at the mouth of the suspension swing type valve to realize the wave absorption effect.

The rubber tube type explosion-proof valve consists of door frame, door leaf, lock, hinge, rubber tube, etc. The rubber tube is made of rubber materials and is fixed on a rubber tube base of the outer panel of the door leaf, and a hole is formed in the front of the side of the rubber tube base. When normal ventilation is carried out, air enters the interior of the engineering through the holes in the rubber tube, when blasting occurs, the rubber tube deforms under the overpressure effect of shock waves, most of the shock waves are blocked outside the engineering through overpressure, and the rubber tube automatically resets under the action of elasticity of the rubber tube after the shock waves pass. The rubber tube type anti-explosion wave valve can realize higher wave absorption rate, but is not suitable for a smoke outlet and a part directly acted by nuclear explosion light radiation due to the limitation of the material of the rubber tube.

SUMMERY OF THE UTILITY MODEL

In order to adapt to the continuous development of civil air defense engineering, realize the reliable fortification of civil air defense engineering vent, solve pendulum formula valve can the smoke protection but the wave absorption rate is low, the contradiction problem that the rubber tube formula valve wave absorption rate is high but can not the smoke protection, the utility model provides a can realize higher wave absorption rate, can be applied to the novel explosion-proof wave valve of pin-connected panel modularization of exhaust port again, concrete technical scheme is as follows:

an assembled modular explosion-proof wave valve comprises a plurality of unit bodies, wherein each unit body comprises a movable unit, a limiting seat, a valve top cover, a bolt and a reset spring, the movable unit is of a fish belly type hollow structure, the limiting seats are arranged on two sides of the movable unit to limit the displacement of the movable unit in the direction of a shock wave vertical action surface, the valve top covers are arranged at two ends of the valve to limit the displacement of the movable unit in the horizontal direction under the vertical action of the shock wave, and fire-proof sealing base plates are arranged on the side edges of the valve top cover and the limiting seats; one side of the valve top cover is provided with a bolt, the other side of the valve top cover is provided with a groove, and the adjacent unit bodies are tightly connected and fixed with the refractory sealing gasket through the matching action of the bolt and the groove and the extrusion action between the refractory sealing gaskets.

Further, the return springs are arranged in two rows horizontally along the action direction of the shock waves.

Furthermore, the splicing modes among the unit bodies are parallel connection, series connection or combination modes of parallel connection and series connection.

Furthermore, a plugging frame is arranged around the unit bodies, and bolt holes are formed in the plugging frame.

The door leaf structure further comprises a fixed frame, the unit bodies are spliced to form a door leaf body together with the fixed frame, the door leaf body is connected with the door frame through hinges, and the surface of the door leaf body is provided with a lock.

Further, the movable unit is made of high-strength aluminum alloy, the limiting seat is made of steel, the valve top cover is made of steel, and the return spring is made of silicon-manganese spring steel.

Preferably, the unit cell has external dimensions of 600mm × 260mm × 140 mm.

Preferably, the thickness of the movable unit is 8 mm.

For current pendulum formula explosion-proof ripples valve and rubber tube formula explosion-proof ripples valve, the beneficial effect of this application is as follows:

the assembled modular anti-explosion valve fundamentally solves the contradiction problems that the suspended pendulum valve can prevent smoke but has low wave absorption rate, and the rubber tube valve has high wave absorption rate but cannot prevent smoke. The vent protective equipment has the advantages that the vent protective equipment can have higher wave absorption rate under high temperature and complex environment, the structure of the vent protective equipment is simpler through unique modular design, the processing and the installation are quicker, the setting method is more flexible, and the civil air defense engineering peacetime conversion speed and the reliability of engineering mouth protection are further improved.

Through the experiment with based on hydrodynamics calculation software to valve mechanism ventilation performance (including air volume, ventilation resistance calculation) under this scheme not, can obtain according to the analysis result, this application can assemble modularization blast resistant valve, can realize great air volume on the basis of guaranteeing structural strength, and single cell cube air volume exceeds 900m3/h, and wave absorption efficiency reaches more than 90%, and the valve is closed within 10ms, and it is obvious with traditional pendulum-type and rubber tube formula blast resistant valve contrast advantage of hanging.

The modular design is applied to valve protection equipment, the engineering application requirements of different orifice sizes and different wave absorption efficiencies are met, and the valve protection equipment has remarkable technical advancement.

Various novel structures such as a blocking type valve, a door type valve protection device and the like can be formed on the basis of the modular units.

Drawings

FIG. 1 is a front view of an assembled modular blast resistant valve unit;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a wave-absorbing schematic diagram of the assembled modular explosion-proof wave-proof valve unit body; wherein, FIG. 4a is a schematic view showing the ventilation state of the valve unit body; FIG. 4b is a schematic view showing the wave-absorbing state of the valve unit body;

FIG. 5 is a front view of an embodiment of a 'series + parallel' connection of the assembled modular explosion-proof wave valve unit bodies;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a front view of a plugging type blast-proof valve formed by the assembled modular blast-proof valve units;

FIG. 8 is a left side view of FIG. 7;

FIG. 9 is a front view of a door type blast-proof valve assembled by the assembled modular blast-proof valve unit bodies;

FIG. 10 is a top view of FIG. 9;

fig. 11 is a left side view of fig. 9.

Reference numerals: 1-an active unit; 2-a return spring; 3-a limiting seat; 4-inserting a pin; 5-a groove; 6-valve top cover; 7-unit body; 8-plugging the frame; 9-bolt hole; 10-bolt; 11-a fixing frame; 12-reaming the page; 13-locking; 14-door frame.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 4, the assembled modular explosion-proof valve comprises a plurality of unit bodies 7, wherein each unit body 7 comprises a movable unit 1, a limiting seat 3, a valve top cover 6, a bolt 4 and a reset spring 2, the movable unit 1 is of a fish belly type hollow structure, the limiting seats 3 are arranged on two sides of the movable unit 1 to limit displacement of the movable unit 1 in the direction of a shock wave vertical action surface, the valve top covers 6 are arranged at two ends of the valve to limit displacement of the movable unit 1 in the horizontal direction under the vertical action of the shock wave, and fire-proof sealing cushion plates (not shown in the figure) are arranged on the side edges of the valve top cover 6 and the limiting seats 3; a plurality of bolts 4 are arranged on one side of the valve top cover 6, a plurality of grooves 5 corresponding to the bolts are arranged on the other side of the valve top cover, and the adjacent unit bodies 7 are tightly connected and fixed through the matching effect of the bolts 4 and the grooves 5 and the extrusion effect between the fireproof sealing gaskets.

In the specific embodiment, in order to ensure the timely reset of the valve after wave elimination, the reset springs are horizontally arranged in two rows along the action direction of the shock wave.

FIG. 4 is a wave-absorbing schematic diagram of the assembled modular explosion-proof wave-proof valve unit body; wherein, FIG. 4a is a schematic view showing the ventilation state of the valve unit body; FIG. 4b is a schematic view showing the wave-absorbing state of the valve unit body; under the normal ventilation state, the movable unit 1 is in the balance position, namely on the central axis of the limiting seat 3, under the action of the return spring 2, and air enters the interior of the engineering through a gap between the movable unit 1 and the limiting seat 2. Because the section of the movable unit adopts a fish belly structure, the structural strength is ensured, meanwhile, the ventilation area is increased, and the ventilation effect is ensured. When meeting the shock wave effect, the movable unit reacts rapidly under the pressure effect, because 2 strokes of reset spring are shorter and movable unit inertia is lower, the valve system can realize closing rapidly, intercepts most shock waves outside the engineering, has guaranteed inside personnel and equipment safety. After the impact wave acts on the movable unit, the movable unit returns to the balance position again under the action of the return spring 2, and the ventilation state is recovered in time.

Example 2

Referring to fig. 5 and 6, fig. 5 is a front view of an embodiment of the assembled modular explosion-proof wave gate unit body connected in series + in parallel; FIG. 6 is a left side view of FIG. 5; when actual engineering application, for the blast protection valve that makes the design can adapt to the vent part of different drill way sizes, and can realize different wave absorption efficiency according to different civil air defense engineering grades, the utility model provides a modularization concatenation scheme. The specific method comprises the following steps: the valve unit bodies are spliced in series along the length direction and the height direction, so that the air vent units can be matched with air vent parts with different sizes (the length can be expanded by 260mm when one layer is connected in series in the length direction, and the height can be expanded by 600mm when one layer is connected in series in the height direction). The valve unit bodies are spliced in parallel along the thickness direction, so that the valve unit bodies can be matched with ventilation ports with different wave absorption efficiency requirements (the wave absorption efficiency is improved by 1 time when one layer is connected in parallel). The 'series + parallel' connection scheme of the assembled modular explosion-proof wave valve unit bodies is adopted.

Example 3

Referring to fig. 7 and 8, fig. 7 is a front view of a blocking type explosion-proof wave damper formed by the assembled modular explosion-proof wave damper unit bodies; FIG. 8 is a left side view of FIG. 7; on the basis of different assembly schemes in the embodiment 2, the embodiment can be used for assembling the valve unit bodies and using the components such as the plugging frame 8, the bolt 10 and the like in a matched mode to manufacture the plugging type valve. The plugging type valve can be applied to a horizontal or vertical vent part required by the entrance and exit of an unmanned person, and is simple in structure, convenient to install and convenient to improve the conversion efficiency of civil air defense engineering.

Example 4

Referring to fig. 9 to 11, fig. 9 is a front view of a door type explosion-proof wave damper assembled by the assemblable modular explosion-proof wave damper unit bodies; FIG. 10 is a top view of FIG. 9; fig. 11 is a left side view of fig. 9. The door leaf is characterized in that on the basis of different assembling schemes in the embodiment 2, components such as a lock 13, a hinge 12, a door frame 14, a unit body fixing frame 11 and the like are used in a matched mode, the unit bodies are assembled and then form a door leaf body together with the fixing frame, the door leaf body is connected with the door frame through the hinge, the surface of the door leaf body is provided with the lock, and a door type valve can be manufactured. The door type valve can be applied to a vertical ventilation opening part with personnel access requirements, and is simple in structure, convenient to install, and convenient to operate and use.

In all the above embodiments, the movable unit is made of high-strength aluminum alloy, the limiting seat is made of steel, the valve top cover is made of steel, and the return spring is made of silicon-manganese spring steel.

Preferably, the unit cell has external dimensions of 600mm × 260mm × 140 mm.

Preferably, the thickness of the movable unit is 8 mm.

The above-mentioned embodiments are only given for the purpose of more clearly illustrating the technical solutions of the present invention, and are not intended to limit the present invention, and the modifications of the technical solutions of the present invention by those skilled in the art based on the common general knowledge in the field are also within the scope of the present invention.

Claims (8)

1. The utility model provides an explosion-proof ripples valve of modularization can be assembled which characterized in that: the movable units are of fish belly type hollow structures, the limiting seats are arranged on two sides of the movable units to limit displacement of the movable units in the direction of a shock wave vertical action surface, the valve top covers are mounted at two ends of the valve to limit displacement of the movable units in the horizontal direction under the vertical action of the shock wave, and fire-resistant sealing base plates are arranged on the side edges of the valve top covers and the limiting seats; one side of the valve top cover is provided with a bolt, the other side of the valve top cover is provided with a groove, and the adjacent unit bodies are tightly connected and fixed with the refractory sealing gasket through the matching action of the bolt and the groove and the extrusion action between the refractory sealing gaskets.

2. The erectable modular blast resistant flapper of claim 1, wherein: the reset springs are horizontally arranged in two rows along the action direction of the shock waves.

3. The erectable modular blast resistant flapper of claim 1, wherein: the splicing modes among the unit bodies are parallel connection, series connection or combination modes of parallel connection and series connection.

4. The erectable modular blast resistant flapper of claim 1, wherein: and a plugging frame is arranged around the unit bodies, and a bolt hole is formed in the plugging frame.

5. The erectable modular blast resistant flapper of claim 3, wherein: the door leaf is characterized by further comprising a fixing frame, the unit bodies are spliced to form a door leaf body together with the fixing frame, the door leaf body is connected with the door frame through hinges, and a lock is arranged on the surface of the door leaf body.

6. The erectable modular blast resistant flapper of claim 1, wherein: the movable unit is made of high-strength aluminum alloy, the limiting seat is made of steel, the valve top cover is made of steel, and the return spring is made of silicon-manganese spring steel.

7. The erectable modular blast resistant flapper of claim 1, wherein: the external dimension of the unit body is 600mm multiplied by 260mm multiplied by 140 mm.

8. The erectable modular blast resistant flapper of claim 1, wherein: the thickness of the movable unit is 8 mm.

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