CN216974632U

CN216974632U - Explosion venting door

Info

Publication number: CN216974632U
Application number: CN202123302030.2U
Authority: CN
Inventors: 胡发振; 肖鹏; 洪波
Original assignee: Zhejiang Meiyang International Engineering Design Co ltd
Current assignee: Zhejiang Meiyang International Engineering Design Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-15
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses an explosion venting door, and relates to the technical field of explosion venting. The explosion venting door comprises a stress system and an explosion venting door plate, wherein the stress system comprises a basic framework and a middle support, the explosion venting door plate is arranged on the stress system, and the explosion venting door plate is a fiber reinforced cement plate or a lightweight expanded rock explosion venting plate; the single layer thickness of the fiber reinforced cement board is 9mm, two layers are formed in total, and the fiber reinforced cement board is laid in a staggered mode; the light expanded stone explosion relief plate is a prefabricated plate, the thickness of the prefabricated plate is 60mm, and the prefabricated plate is tiled in a single layer. In order to solve the technical defects that the explosion venting effect is poor under low explosion pressure caused by the explosion venting bolt of the main part in the existing explosion venting door and the aluminum alloy gasket in the explosion venting bolt is easy to corrode and deform and needs to be replaced irregularly, the utility model does not adopt the explosion venting bolt. The utility model can improve the explosion venting effect of the explosion venting door under low explosion pressure and also provides more choices for the process production of large-size outer doors.

Description

Explosion venting door

Technical Field

The utility model relates to the technical field of explosion venting, in particular to an explosion venting door.

Background

According to the requirements of building technical specifications, class A and class B factory buildings and warehouses with explosion risks need to be designed with pressure relief facilities for ensuring the safety of the main structure of the building. When the door is used as a pressure relief facility, a common door cannot meet the standard requirement, and a specially-made explosion relief door is needed. The national standard chart sets a recommended practice for explosion venting doors, which is detailed in anti-explosion and explosion venting doors and windows, roofs and wall building structures (14J 938), pages B1-B5, but the methods have the following defects.

The national standard atlas sets the explosion venting door in anti-explosion and explosion venting doors and windows, roof and wall building structures (14J 938), the most important component of the explosion venting door is an explosion venting bolt, and the strength of an aluminum alloy gasket of the explosion venting bolt corresponds to the explosion venting pressure value of the explosion venting window on a door leaf. When the indoor of the building explodes or burns, the indoor gas pressure rises rapidly along with the indoor gas pressure, and the aluminum alloy gasket deforms under the action of the explosion pressure, so that the window sash can be opened under the impact of explosion airflow, and the purpose of explosion venting is achieved. However, the aluminum alloy gasket of the explosion venting bolt is easy to corrode in the environment of a chemical plant, so that deformation is generated, the explosion venting condition cannot occur when the explosion venting pressure exceeds 20kPa, and great potential safety hazard exists; meanwhile, due to the deformation of the aluminum alloy gasket, the performance indexes of the explosion vent, such as air tightness, water tightness, wind pressure resistance and the like, are reduced, and the production is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides the explosion venting door aiming at the defects in the background technology, and the explosion venting effect of the explosion venting door under low explosion pressure can be improved through the explosion venting door.

In order to achieve the purpose, the technical solution of the utility model is as follows:

the explosion venting door comprises a stress system and an explosion venting door plate, wherein the explosion venting door plate is arranged on the stress system and can be damaged under low explosion pressure.

In order to ensure that the explosion venting plate can effectively vent explosion during explosion and reduce the impact of explosion on a main building, the utility model provides another preferable scheme, and the explosion venting door plate is a fiber reinforced cement plate or a lightweight expanded rock explosion venting plate. When the fiber reinforced cement board is selected as the explosion venting door board, two layers are paved, the thickness of a single layer is 9mm, and the paving mode is staggered paving; when the light expanded stone explosion venting plate is selected as the explosion venting door plate, only one layer is laid, the thickness of the single layer is 60mm, and the laying mode is horizontal laying. The explosion venting door plate is in a block shape or a powder shape during explosion, and secondary damage can not be caused.

In order to meet the requirements of air tightness, water tightness and wind pressure resistance of the explosion venting door, the utility model provides another preferable scheme, and the surface of the explosion venting door plate is coated.

In order to meet the requirements of strength and durability of the explosion venting door and to realize simple and quick installation, the utility model provides another preferable scheme, the basic framework comprises a steel framework and inclined struts arranged on diagonal lines of the steel framework, and the basic framework is obtained by welding angle steels. The middle support is middle lattice angle steel which enables the steel frame to form a lattice structure.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1. the explosion venting door does not adopt an explosion venting bolt, so that the defect of the explosion venting bolt is avoided; the fiber reinforced cement board or the light expanded stone explosion venting board is selected as the explosion venting door board, so that explosion and pressure relief can be easily realized.

2. The explosion venting plate is in a block shape or a powder shape during explosion, and secondary damage can not be caused.

3. Compared with the explosion venting door in the anti-explosion and explosion venting door window, roof and wall building structure (14J 938), the explosion venting door is simple and convenient to manufacture, and the manufacturing cost is greatly reduced.

Drawings

FIG. 1 is a front view of the overall structure of the present embodiment 1;

FIG. 2 is a left side view of the overall structure of the present embodiment 1;

FIG. 3 is a top view of the overall structure of the present embodiment 1;

FIG. 4 is a detailed view of a part a of the present embodiment 1;

FIG. 5 is a detailed view of a part b of the present embodiment 1;

FIG. 6 is a detailed view of a part c of the present embodiment 1;

FIG. 7 is a front view of the entire structure of the present embodiment 2;

FIG. 8 is a top view of the whole structure of the present embodiment 2;

fig. 9 is a detailed view of a part d of the structure of the embodiment 2.

The reference numerals in the drawings mean: 1. a steel frame; 2. bracing; 3. a middle support; 4. a vent door panel; 5. a fiber reinforced cement board; 6. the light expanding stone explosion releasing plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to fig. 1 to 9 so that those skilled in the art can more clearly understand how to practice the present invention. While the utility model has been described in connection with preferred embodiments thereof, these embodiments are merely illustrative, and not restrictive, of the scope of the utility model.

Example 1

Taking a hole size (width X height) 3600 by 4200 as a design example, and referring to fig. 1 to fig. 6, the explosion venting door comprises: the explosion venting door comprises a stress system and an explosion venting door plate, wherein the stress system is composed of a basic framework and a middle support.

The method is characterized in that angle steel (specification L50X 5) is welded into a rectangular steel frame, an inclined strut is arranged along the diagonal direction of the steel frame to serve as a basic framework, a left door and a right door are divided, the size of each door is 1800X 4150 (width X height), and mounting holes are reserved.

And (3) selecting middle grid angle steel (specification L30 × 4) as a middle support, horizontally arranging 7 doors, vertically arranging 10 doors, and reserving mounting holes.

Cutting a fiber reinforced cement board (XQ 3b type) into a proper size, and embedding and laying the fiber reinforced cement board on a basic skeleton; and laying a second layer of fiber reinforced plate in a staggered manner, wherein the thickness of the second layer of fiber reinforced plate is 18 (9 + 9) mm.

And punching holes on the explosion venting door plate according to reserved mounting holes on the basic framework and the middle grid angle steel, and connecting the explosion venting door plate with the stress system by using bolts.

And (4) putty is applied to the surface of the explosion venting door, paint is made, and the explosion venting door is dried in a ventilated and shady place.

Example 2

In order to achieve the explosion venting effect under the low explosion pressure, the embodiment of the embodiment 2 can be selected to achieve the same effect except for the materials, structures and connection modes adopted by the stress system and the explosion venting door panel in the embodiment 1.

Taking a hole size (width X height) 3600 by 4200 as a design example, and referring to fig. 7 to fig. 9, a venting explosion door comprises: the explosion venting door comprises a stress system and an explosion venting door plate, wherein the stress system is composed of a basic framework.

Laying a prefabricated lightweight expanded rock explosion venting plate on a basic framework; the plates are connected by M16 bolts, four corners of each plate are respectively provided with a bolt, and the thickness of each plate is 60 mm.

The difference between example 2 and example 1 is: the door plate is made of a light expanded stone explosion releasing plate, the thickness of the plate is 60mm, the horizontal dimension is prefabricated according to the width of the door frame, and the vertical height dimension is 1500 mm; the stress system only has a basic framework and does not need to be provided with middle grid angle steel as a middle support, and four corners of the light expanded stone explosion venting plate are connected with the steel framework by bolts.

In summary, with the above technical solution of the present invention, the weight of the explosion venting plate in the completed embodiment 1 is 21.6kg/m²Example 2 the weight of the explosion venting plate was 30kg/m²Meets the specification of 60kg/m²The explosion venting effect of the explosion venting door under low explosion pressure can be improved; compared with explosion-proof door and window and roof and wall building structure (14J 938), the explosion-proof door and window has the advantages of simple manufacture, low cost, more door type selectivity and larger opening size (the maximum is 25.92 m)²). Meanwhile, the fiber reinforced cement board is easy to cut, drill, plane, cut and the like, the construction is convenient, the surface of the board can be sprayed with various colors according to the needs, and the practical application is wider.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A let out explosion door, its characterized in that: the explosion venting door plate is arranged on the stress system and can be damaged under low explosion pressure; the explosion venting door plate is a fiber reinforced cement plate or a light expanded rock explosion venting plate; the single layer thickness of the fiber reinforced cement board is 9mm, two layers are formed in total, and the fiber reinforced cement board is laid in a staggered mode; the light expanded stone explosion releasing plate is a prefabricated plate, the thickness of the prefabricated plate is 60mm, and the prefabricated plate is paved in a single layer mode.

2. The vent explosion vent according to claim 1, wherein: the surface of the explosion venting door plate is provided with a coating.

3. The vent explosion vent according to claim 1, wherein: the stress system comprises a basic framework and a middle support connected with the basic framework.

4. A vent explosion vent according to claim 3, wherein: the basic framework comprises a steel framework and an inclined strut arranged on the diagonal line of the steel framework, and is obtained by welding angle steel.

5. A vent according to claim 3, wherein: the middle support is middle lattice angle steel which enables the steel frame to form a lattice structure.