Fire-fighting pressure relief structure

Abstract

The utility model relates to the technical field of fire protection, and discloses a fire protection pressure relief structure which comprises a pressure relief opening, an air pipe, a first shutter and a second shutter. The air pipe penetrates through a communicating port in the wall body and is erected on the wall body, an air inlet of the air pipe is formed in the inner side of the wall body and is formed in a ceiling, an air outlet of the air pipe is formed in the outer side of the wall body, and the pressure relief port is fixedly formed in the air pipe; the first shutter is arranged at the air inlet, and the second shutter is arranged at the air outlet; the pressure relief device can be applied to building surfaces of laboratories, high glass and the like, the pressure relief channel is convenient to maintain and clean, and the pressure relief efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection, and more particularly to a fire protection pressure relief structure. Background Art

[0002] Laboratory fire safety is not only related to the safety within the laboratory, but also to the stability of the surrounding environment and society. Therefore, laboratory managers and users attach great importance to fire safety and take effective preventive measures to ensure the normal operation and development of the laboratory.

[0003] A gas fire extinguishing system is a commonly used fire-fighting facility in laboratories. It can protect the laboratory's high-precision, high-value experimental instruments and equipment, protect flammable, explosive, and toxic chemical reagents, prevent water damage, and respond quickly, quickly releasing fire extinguishing agents in the early stages of a fire, thereby more effectively controlling the fire. When the gas fire extinguishing system is activated, a large amount of fire extinguishing agent will fill the entire protected area in a short period of time, which will cause the air pressure in the protected area to rise sharply. In order to prevent this pressure change from damaging the building structure or causing parts such as doors and windows to deform or even burst, a pressure relief valve is required to balance the pressure. The pressure relief valve is an automatic pressure relief device and is an important auxiliary device for fire-fighting gas fire extinguishing equipment. It prevents the increased pressure in the protected area from damaging the maintenance structure of the protected area.

[0004] Common pressure relief vents are mainly composed of two parts. One part is installed on the exterior wall, and the fan blade structure in the pressure relief vent is installed on the interior wall. The installation height is generally more than 2 / 3 of the floor height. During installation, it must not be tilted, and the sides of the pressure relief vent must not be squeezed. After installation, the pressure relief vent door panel should be tapped by hand through the interior wall to ensure that the pressure relief vent can be opened normally. This type of pressure relief vent will withstand a large impact force on the wall during pressure relief, and brittle structures such as glass have poor strength. Therefore, this type of pressure relief vent cannot be installed on glass. In addition, this type of pressure relief vent is exposed, and rainwater, dust, etc. can easily enter the pressure relief vent, causing blockage and damaging the gas fire extinguishing system. Utility Model Content

[0005] The purpose of this application is to provide a fire-fighting pressure relief structure that can be used on building surfaces such as laboratories and full-height glass, and is convenient for repairing and cleaning the pressure relief channel, thereby improving the pressure relief efficiency.

[0006] To achieve the above-mentioned purpose, the present application adopts a fire-fighting pressure relief structure, comprising: a pressure relief port, an air duct, a first louver and a second louver;

[0007] The air duct is installed on the wall through the connecting opening on the wall, the air inlet of the air duct is arranged on the inner side of the wall and on the ceiling, the air outlet of the air duct is arranged on the outer side of the wall, and the pressure relief port is fixed in the air duct;

[0008] The first louver is arranged at the air inlet, and the second louver is arranged at the air outlet.

[0009] As a preferred technical solution, the air duct includes a pipe, a first elbow, a first joint and a second joint. The pipe passes through the connecting port, and the two ends of the pipe are located on the inner and outer sides of the wall. The pressure relief port is fixed in the pipe, one end of the pipe is connected to the first joint through the first elbow, and the other end is connected to the second joint. The first joint is located on the inner side of the wall and connected to the ceiling. The air inlet is provided at the end of the first joint, and the first blind is detachably connected to the end of the first joint. The air outlet is provided at the end of the second joint, and the second blind is detachably connected to the end of the second joint.

[0010] As a preferred technical solution, the air duct further includes a second elbow, and the other end of the pipe is connected to the second joint through the second elbow.

[0011] As a preferred technical solution, the pressure relief port is located at the communication port.

[0012] As a preferred technical solution, the pipeline is a square tube.

[0013] As a preferred technical solution, the pipeline is welded at the communication port.

[0014] As a preferred technical solution, the air duct further includes a muffler and a filter, and the muffler and the filter are both arranged in the duct.

[0015] As a preferred technical solution, the first venetian blinds and the second venetian blinds have the same structure.

[0016] A fire-fighting pressure relief structure in the present application is configured by opening a connecting port on a wall, and arranging an air duct to pass through the connecting port and extend to the inner and outer sides of the wall, setting the finished pressure relief port in the air duct, and arranging a first louver at the air inlet of the air duct, and a second louver at the air outlet of the air duct; when there is no need to relieve pressure in the protection zone at ordinary times, the airflow in the protection zone is guided by the first louver, the second louver and the air duct, and gas is exchanged with the external air through the gap in the air duct, which is convenient for cleaning, and rainwater, dust, etc. are not easy to enter the air duct, and will not cause the pressure relief port to be blocked; when the protection zone is relieved of pressure, the pressure relief port is automatically opened, and the gas is quickly discharged through the pressure relief port under the guidance of the first louver and the air duct, and part of the impact force caused by the pressure relief is absorbed by the air duct and part by the wall, which can prevent the wall from being damaged by excessive impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the inner side of the wall of the utility model;

[0020] Among them: 1. Air duct; 11. Pipe; 12. First elbow; 13. First joint; 14. Second elbow; 15. Second joint; 16. Air inlet; 17. Air outlet; 2. Pressure relief port; 3. First louver; 4. Second louver; 5. Wall; 51. Connecting port; 6. Ceiling. DETAILED DESCRIPTION

[0021] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] See Figure 1-2 , a fire protection pressure relief structure provided by an embodiment of the present application, comprising: a pressure relief port 2, an air duct 1, a first louver 3 and a second louver 4;

[0023] The air duct 1 passes through the communication port 51 on the wall 5 and is mounted on the wall 5. The air inlet 16 of the air duct 1 is arranged on the inner side of the wall 5 and on the ceiling 6. The air outlet 17 of the air duct 1 is arranged on the outer side of the wall 5. The pressure relief port 2 is fixed in the air duct 1.

[0024] The first louver 3 is provided at the air inlet 16 , and the second louver 4 is provided at the air outlet 17 .

[0025] In this embodiment, by setting the air duct 1 and setting the pressure relief port 2 on the air duct 1, direct connection between the pressure relief port 2 and the connecting port 51 on the wall 5 is avoided, which can effectively avoid the huge impact force generated during pressure relief directly acting on the wall 5 and causing damage to the wall 5. The fire-fighting pressure relief structure can be applied to building surfaces such as laboratories and full-height glass. The setting of the air duct 1 effectively extends the pressure relief channel and avoids direct contact between the pressure relief port 2 and the outside world, which can effectively prevent rainwater, dust, etc. from entering the air duct 1, causing the pressure relief port 2 to be blocked, and then damaging the gas fire extinguishing system. In cold weather, the risk of freezing of the pressure relief port 2 can also be reduced. The air duct 1 and the first and second louvers 3 and 4 can adjust the airflow direction inside and outside the protection zone. During pressure relief, the internal gas is quickly guided to the pressure relief port 2 and discharged through the second louver 4, which effectively improves the pressure relief efficiency. The louver has a certain absorption effect on noise and can reduce the noise generated during pressure relief.

[0026] Furthermore, the air duct 1 includes a pipe 11, a first elbow 12, a first joint 13 and a second joint 15. The pipe 11 passes through the connecting port 51, and the two ends of the pipe 11 are located at the inner and outer sides of the wall 5. The pressure relief port 2 is fixed in the pipe 11, one end of the pipe 11 is connected to the first joint 13 through the first elbow 12, and the other end is connected to the second joint 15. The first joint 13 is located on the inner side of the wall 5 and connected to the ceiling 6. The air inlet 16 is provided at the end of the first joint 13, and the first louver 3 is detachably connected to the end of the first joint 13. The air outlet 17 is provided at the end of the second joint 15, and the second louver 4 is detachably connected to the end of the second joint 15.

[0027] In this embodiment, the direction of the air duct 1 on the inner side of the wall 5 is changed by the first elbow 12, so that the first joint 13 is perpendicular to the ground and is connected to the first blind 3 connected to the ceiling 6, thereby extending the pressure relief channel on the inner side of the wall 5, which is conducive to the maintenance and cleaning of the fire pressure relief structure.

[0028] It should be noted that the length of the pipe 11 is adjustable, and an appropriate length of the pipe 11 can be selected according to the fire protection pressure relief requirements of the protected area to obtain a pressure relief channel of appropriate length.

[0029] Furthermore, the air duct 1 includes a second elbow 14, through which the other end of the duct 11 is connected to the second joint 15. The second elbow 14 changes the direction of the air duct 1 outside the wall 5, so that the second joint 15 is perpendicular to the ground and connected to the second louver 4, extending the pressure relief channel outside the wall 5. The air outlet 17 faces the ground, further preventing rainwater, dust, etc. from entering the duct 11.

[0030] Furthermore, the pressure relief port 2 is located at the communication port 51. During pressure relief, the impact force generated by the pressure relief is first absorbed by the pipe 11, and the remaining impact force is then transmitted to the wall 5, which can effectively protect the wall 5.

[0031] Furthermore, the pipe 11 is a square tube. Existing pressure relief vents 2 are mostly rectangular parallelepipeds. Designing the pipe 11 as a square tube rather than a round tube not only allows for adaptability to a variety of pressure relief vents 2 but also provides a smooth inner wall for easier installation. The preferred cross-sectional length and width of the square tube are both 400 mm, as this size is commonly used and relatively low in cost.

[0032] Furthermore, the pipe 11 is welded to the communication port 51. The connection between the pipe 11 and the communication port 51 is strengthened by welding, making the connection more secure and increasing the stability of the structure.

[0033] Furthermore, the air duct 1 also includes a muffler and a filter, both of which are disposed within the pipe 11. The muffler can effectively reduce the noise generated by the gas fire extinguishing system during pressure relief, and the filter can be used to remove impurities and pollutants in the pipe 11 to maintain air quality and system efficiency.

[0034] Furthermore, the first venetian blind 3 has the same structure as the second venetian blind 4. In the present application, the length and width of the first venetian blind 3 and the second venetian blind 4 are preferably both 400 mm, which is a common size of venetian blinds with low cost.

[0035] To sum up, the fire-fighting pressure relief structure provided in this embodiment extends the length of the pressure relief channel by setting an air duct and setting the pressure relief port in the air duct, effectively protecting the pressure relief port and protecting the wall to prevent the impact force generated during pressure relief from damaging the wall, thereby solving the problem that the existing pressure relief port cannot be used for laboratories, full-height glass and other building surfaces; and setting the first blinds and the second blinds at both ends of the air duct, effectively reducing the noise during pressure relief, and being able to adjust the airflow direction to speed up the pressure relief rate.

[0036] This specification discloses the present application with reference to the accompanying drawings and also enables those skilled in the art to practice the present application, including making and using any device or system, employing suitable materials, and using any combined methods. The scope of the present application is defined by the claimed technical solution and includes other examples that occur to those skilled in the art. As long as such other examples include structural elements that are not different from the literal language of the claimed technical solution, or such other examples include equivalent structural elements that are not substantially different from the literal language of the claimed technical solution, such other examples should be deemed to be within the scope of protection determined by the claimed technical solution.

Claims

1. A fire-fighting pressure relief structure, characterized in that: include: pressure relief vent, air duct, first louver and second louver; The air duct is installed on the wall through the connecting opening on the wall, the air inlet of the air duct is arranged on the inner side of the wall and on the ceiling, the air outlet of the air duct is arranged on the outer side of the wall, and the pressure relief port is fixed in the air duct; The first louver is arranged at the air inlet, and the second louver is arranged at the air outlet.

2. The fire-fighting pressure relief structure according to claim 1, characterized in that: The air duct includes a pipe, a first elbow, a first joint and a second joint. The pipe passes through the connecting port, and the two ends of the pipe are located at the inner and outer sides of the wall. The pressure relief port is fixed in the pipe. One end of the pipe is connected to the first joint through the first elbow, and the other end is connected to the second joint. The first joint is located on the inner side of the wall and connected to the ceiling. The air inlet is provided at the end of the first joint, and the first louver is detachably connected to the end of the first joint. The air outlet is provided at the end of the second joint, and the second louver is detachably connected to the end of the second joint.

3. The fire-fighting pressure relief structure according to claim 2, characterized in that: The air duct further includes a second elbow, and the other end of the pipe is connected to the second joint through the second elbow.

4. The fire-fighting pressure relief structure according to claim 2, characterized in that: The pressure relief port is located at the communication port.

5. The fire-fighting pressure relief structure according to claim 2, characterized in that: The pipeline is a square tube.

6. The fire-fighting pressure relief structure according to claim 2, characterized in that: The pipeline is welded at the communication port.

7. The fire-fighting pressure relief structure according to claim 2, characterized in that: The air duct further includes a muffler and a filter, and the muffler and the filter are both arranged in the duct.

8. The fire-fighting pressure relief structure according to claim 1, characterized in that: The first shutter and the second shutter have the same structure.

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