Steel heat insulation fireproof door

Abstract

The utility model provides a steel heat insulation fireproof door which comprises a door frame, a door leaf, a water tank, an air storage tank, a transverse pipe, spraying holes, a vertical pipe and a temperature sensor. When a fire disaster occurs, when the temperature reaches the trigger temperature set by the temperature sensor, the electromagnetic valve is opened through the controller connected through a circuit, nitrogen in the gas storage tank is released, the nitrogen is released from the spraying holes through the transverse pipe, meanwhile, low pressure is formed at the top of the vertical pipe, water in the water tank is pumped out, the water is released through the spraying holes, and the released nitrogen and water dissipate heat of the fireproof door. The service life of the fireproof door in the fireproof process is prolonged; therefore, the problem that the service life of the fireproof door body in the fireproof process is shortened due to the fact that the temperature of the fireproof door is rapidly increased when an existing steel heat-insulation fireproof door is in direct contact with dense smoke generated by flames and fire disasters is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting facilities, in particular to a steel heat-insulating fire door. Background Art

[0002] A fire door refers to a door that can meet the requirements of fire resistance, integrity and heat insulation within a certain period of time, and is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc.; in addition to the function of an ordinary door, a fire door also has the function of preventing the spread of fire and thick smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.

[0003] For the existing steel heat-insulating fire door, it is in direct contact with the flame and thick smoke generated by the fire, which causes the temperature of the fire door to rise rapidly. When the temperature of the fire door reaches a certain level, it will be damaged, making it difficult to prevent the spread of fire, and resulting in a low service life of the fire door body during the fire prevention process. Summary of the Utility Model

[0004] The purpose of the utility model is to design a steel heat-insulating fire door to solve the problems put forward in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: including a door frame and a door leaf hinged to the door frame, and further including a water tank arranged at the top of the door frame, a gas storage tank arranged inside the water tank, a plurality of horizontal pipes communicated with the gas storage tank, spray holes arranged at one end of the horizontal pipes away from the gas storage tank, a plurality of vertical pipes communicated with the horizontal pipes, a temperature sensor fixedly connected to the top of the door frame, a valve arranged on the horizontal pipe between the gas storage tank and the vertical pipe, a gas for extinguishing fire is filled in the gas storage tank, the temperature sensor controls the valve through a controller, and when the gas is released through the spray holes, the water in the water tank is pumped out from the vertical pipes.

[0006] Further, a sealing plate is arranged at the top of the water tank, a water injection pipe is fixedly connected to the sealing plate, the water injection pipe penetrates through the sealing plate, the bottom of the water injection pipe abuts against the bottom of the water tank, and a notch is arranged at the bottom of the water injection pipe, and a water injection port is arranged at the top of the water injection pipe.

[0007] Further, a groove is arranged at the water injection port, a filter cotton is arranged on the groove, and a fixing ring is threadedly connected to the water injection port, and when the fixing ring is tightened, it abuts against the filter cotton.

[0008] Further, the water injection pipe below the sealing plate is provided with through holes, and the through holes are above the liquid level in the water tank.

[0009] Further, a check valve is provided on the part of the water injection pipe below the sealing plate. A first boss is provided inside the valve body of the check valve. A chute is provided on the first boss. The through hole is located on the first boss. A second boss is provided on the valve core of the check valve. The second boss is slidably connected to the chute. The second boss can seal the through hole. A water passing gap is provided between the second boss and the valve body.

[0010] Further, the included angle between the vertical pipe and the horizontal pipe at the connection is not greater than 90°. The upper part of the vertical pipe faces away from the gas storage tank. There is a gap between the bottom of the vertical pipe and the bottom of the water tank.

[0011] Further, a scale window is provided on the water tank.

[0012] Further, a door closer is provided between the top of the door frame and the door leaf.

[0013] Further, an observation window is provided on the door leaf.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: When a fire occurs and the temperature reaches the triggering temperature set by the temperature sensor, the controller will open the valve to release the extinguishing gas in the gas storage tank. The gas passes through the horizontal pipe and is released from the spray holes. At the same time, a low pressure is formed at the top of the vertical pipe, thereby pumping out the water in the water tank. The water is released through the spray holes and combines with the released gas to cool the fire door while extinguishing the fire, thereby extending the service life of the fire door. Therefore, the present utility model eliminates the problem that in the prior art, during the use of a steel heat-insulated fire door, due to direct contact with the flame and the thick smoke generated by the fire, the temperature of the fire door rises rapidly, resulting in a low service life of the fire door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a sectional view of the water tank;

[0018] Figure 3 It is a sectional view of the check valve.

[0019] Wherein: 1. Door frame; 2. Door leaf; 3. Observation window; 4. Water passing gap; 5. Spraying holes; 6. Scale window; 7. Temperature sensor; 8. Water injection port; 9. Water tank; 10. Gas storage tank; 11. Horizontal pipe; 12. Vertical pipe; 13. Water injection pipe; 14. First boss; 15. Through hole; 16. Valve core; 17. Second boss; 18. Filter cotton; 19. Fixed ring. Detailed implementation manners

[0020] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0021] Embodiment: Please refer to Figures 1-3 , a steel heat-insulating and fire-proof door, including a door frame 1 and a door leaf 2 hinged to the door frame 1, further including a water tank 9 provided at the top of the door frame 1, a gas storage tank 10 provided inside the water tank 9, a plurality of horizontal pipes 11 communicated with the gas storage tank 10, spraying holes 5 provided at one end of the horizontal pipes 11 away from the gas storage tank 10, a plurality of vertical pipes 12 communicated with the horizontal pipes 11, and a temperature sensor 7 fixedly connected to the top of the door frame 1. A valve is provided on the horizontal pipe 11 between the gas storage tank 10 and the vertical pipe 12. The gas storage tank 10 is filled with a gas for fire extinguishing. The temperature sensor 7 controls the valve through a controller. When the gas is released through the spraying holes 5, the water in the water tank 9 is drawn out from the vertical pipes 12; the temperature sensor 7 and the controller are of common types and will not be elaborated here in detail. The valve is a common solenoid valve. The gas storage tank 10 is filled with liquid nitrogen, and the gas storage tank 10 is made of heat-insulating material; when a fire occurs and the temperature near the door frame 1 reaches the trigger temperature set by the temperature sensor 7, the temperature sensor 7 will send a signal to the controller, and the controller opens the solenoid valve to release the nitrogen in the gas storage tank 10. The nitrogen passes through the horizontal pipe 11 and is released from the spraying holes 5. During this process, the nitrogen will flow above the connection between the horizontal pipe 11 and the vertical pipe 12. Since the gas (nitrogen) above the connection between the vertical pipe 12 and the horizontal pipe 11 is relatively fast, a low pressure will be formed at the connection between the vertical pipe 12 and the horizontal pipe 11. By adopting a principle similar to that of an ejector, the water in the water tank 9 is drawn out, and the water is released through the spraying holes 5. At this time, the released nitrogen combines with the water to dissipate heat and extinguish the fire for the fire-proof door, thereby prolonging the service life of the fire-proof door during the fire prevention process; in this embodiment, the included angle between the vertical pipe 12 and the horizontal pipe 11 is not greater than 90°, the upper part of the vertical pipe 12 faces away from the gas storage tank 10, and there is a gap between the bottom of the vertical pipe 12 and the bottom of the water tank 9; specifically, the distance between the lower opening of the vertical pipe 12 and the bottom of the water tank 9 is 5 mm, and the included angle between the vertical pipe 12 and the horizontal pipe 11 is 60°. When the valve of the gas storage tank 10 is opened, the nitrogen is discharged along the horizontal pipe 11 and will not enter the vertical pipe 12, preventing the nitrogen from entering the vertical pipe 12 when the solenoid valve of the gas storage tank 10 is opened, resulting in the inability to draw out the water in the water tank 9 normally.

[0022] Since the interior of the water tank 9 is not a sealed space, after a long installation time, the water in the water tank 9 will gradually evaporate, or the water quality will be polluted due to rusting or other reasons. At this time, the water needs to be replaced. Therefore, in this embodiment, a sealing plate is provided at the top of the water tank 9, and a water injection pipe 13 is fixedly connected to the sealing plate. The water injection pipe 13 passes through the sealing plate, the bottom of the water injection pipe 13 abuts against the bottom of the water tank 9, and a notch is provided at the bottom of the water injection pipe 13. An injection port 8 is provided at the top of the water injection pipe 13. At this time, water can be added or pumped from the injection port 8 at the top of the water injection pipe 13 to solve the problem of replacing the water in the water tank 9.

[0023] In this embodiment, a groove is provided at the injection port 8, and a filter cotton 18 is provided on the groove. The injection port 8 is threadedly connected with a fixing ring 19. When the fixing ring 19 is tightened, it abuts against the filter cotton 18. The filter cotton 18 is provided to prevent dust, insects or other impurities from entering the water tank 9 through the water injection pipe 13 and causing blockage of the water injection pipe 13, the horizontal pipe 11, the vertical pipe 12 and the spray holes 5 on the horizontal pipe 11. After the filter cotton 18 is damaged due to long use, the fixing ring 19 can be unscrewed, the damaged filter cotton 18 can be taken out, a new filter cotton 18 can be placed, and then the fixing ring 19 can be tightened to quickly complete the replacement of the filter cotton 18.

[0024] When a fire occurs, during the process of pumping water out of the water tank 9, the air pressure inside the top of the water tank 9 gradually decreases to form a negative pressure, which affects the discharge of water in the water tank 9. Therefore, in this embodiment, a through hole 15 is provided in the water injection pipe 13 below the sealing plate, and the through hole 15 is located above the liquid level inside the water tank 9. Thus, the air inside the water tank 9 is communicated with the outside atmosphere through the through hole 15, ensuring that the water in the water tank 9 can be normally released from the spray holes 5.

[0025] In this embodiment, a check valve is provided in the part of the water injection pipe 13 below the sealing plate. A boss one 14 is provided inside the valve body of the check valve, a chute is provided on the boss one 14, the through hole 15 is located on the boss one 14, a boss two 17 is provided on the valve core 16 of the check valve, and the boss two 17 is slidably connected with the chute. The boss two 17 can seal the through hole 15, and a water passing gap 4 is provided between the boss two 17 and the valve body. When pumping water, the water flow pushes the valve core 16 of the check valve upward, opening the channel inside the water injection pipe 13 while blocking the through hole 15 on the boss one 14, so that the water flow enters from the bottom of the water injection pipe 13 and flows into the horizontal pipe 11 through the water passing gap 4, and finally discharges from the injection port 8. Among them, the size of the through hole 15 is small enough to ensure that the air pressure inside and outside the water tank 9 is the same, preventing the problem that the valve core 16 cannot move upward during pumping due to the over-large size of the through hole 15, and thus the pumping cannot be realized. In addition, when water needs to be added to the water tank 9, the water enters from the injection port 8, passes through the horizontal pipe 11 and the vertical pipe 12, and enters the water tank 9 through the through hole 15 and the water passing gap 4 (a water pump can be used for adding water).

[0026] In other embodiments, a scale window 6 is provided on the water tank 9. The scale window 6 is used to observe the water volume inside the water tank 9. During fire inspections, the water volume or water quality inside the water tank 9 can be observed through the scale window 6. If the water volume is less than 1 / 2, water needs to be added. If the water quality is turbid, the water needs to be pumped out and then clean water needs to be added.

[0027] In other embodiments, a door closer is provided between the top of the door frame 1 and the door leaf 2. The door closer adopts a common door closer, and the door closer keeps the door leaf 2 in a normally closed state. During a fire, it can timely block the flame and thick smoke. An observation window 3 is provided on the door leaf 2. During a fire, the evacuees or firefighters can observe the fire situation through the observation window 3 to prevent being injured after opening the fire door without noticing the fire situation outside the door.

[0028] Working principle: When a fire occurs and the temperature reaches the trigger temperature set by the temperature sensor 7, the temperature sensor 7 will send a signal to the controller. The controller opens the solenoid valve to release the nitrogen in the gas storage tank 10. The nitrogen passes through the horizontal pipe 11 and is released from the spray holes 5. At the same time, a low pressure is formed at the top of the vertical pipe 12, and the water in the water tank 9 is pumped out. The water is released through the spray holes 5. The released nitrogen and water dissipate heat and extinguish the fire on the fire door, extending the service life of the fire door during the fire prevention process. Therefore, this utility model eliminates the problem that in the prior art, during the use of a steel-insulated fire door, due to direct contact with the flame and thick smoke generated by the fire, the temperature of the fire door rises rapidly, resulting in a relatively low service life of the fire door body.

[0029] It should be noted that when an element is referred to as "fixedly connected to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are only for the purpose of illustration.

[0030] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content without departing from the technical solution scope of the present utility model. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A steel heat-insulating and fire-proof door, comprising a door frame (1) and a door leaf (2) hinged to the door frame (1), characterized in that, The door frame (1) further comprises a water tank (9) arranged at the top of the door frame (1), a gas storage tank (10) arranged inside the water tank (9), a plurality of transverse pipes (11) connected to the gas storage tank (10), a spray hole (5) arranged on the transverse pipe (11) and facing away from one end of the gas storage tank (10), a plurality of vertical pipes (12) connected to the transverse pipe (11), and a temperature sensor (7) fixedly connected to the top of the door frame (1); a temperature sensor (7) is arranged on the transverse pipe (11) between the gas storage tank (10) and the vertical pipe (12). A valve is provided, the gas storage tank (10) is filled with gas for fire extinguishing, the temperature sensor (7) controls the valve through a controller, when the gas is released through the spray hole (5), the water in the water tank (9) is drawn out from the vertical pipe (12), the angle between the vertical pipe (12) and the horizontal pipe (11) at the connection is not greater than 90°, the upper part of the vertical pipe (12) faces away from the gas storage tank (10), and there is a gap between the bottom of the vertical pipe (12) and the bottom of the water tank (9).

2. The steel heat-insulating and fire-proof door according to claim 1, wherein, A sealing plate is provided at the top of the water tank (9), a water injection pipe (13) is fixedly connected to the sealing plate, the water injection pipe (13) passes through the sealing plate, the bottom of the water injection pipe (13) abuts against the bottom of the water tank (9), and a notch is provided at the bottom of the water injection pipe (13), and a water injection port (8) is provided at the top of the water injection pipe (13).

3. The steel heat-insulating and fireproof door according to claim 2, wherein, The water injection port (8) is provided with a groove, and a filter cotton (18) is provided on the groove. The water injection port (8) is threadedly connected with a fixing ring (19), and the fixing ring (19) abuts against the filter cotton (18) when tightened.

4. The steel heat-insulating and fireproof door according to claim 2, wherein The water injection pipe (13) located below the sealing plate is provided with a through hole (15), and the through hole (15) is located above the liquid level in the water tank (9).

5. The steel heat-insulating and fireproof door according to claim 4, wherein, The part of the water injection pipe (13) located below the sealing plate is provided with a one-way valve, a boss (14) is provided in the valve body of the one-way valve, a slide groove is provided on the boss (14), the through hole (15) is located on the boss (14), a boss (17) is provided on the valve core (16) of the one-way valve, the boss (17) is slidably connected to the slide groove, the boss (17) can seal the through hole (15), and a water gap (4) is provided between the boss (17) and the valve body.

6. The steel heat-insulating and fireproof door according to claim 1, wherein, The water tank (9) is provided with a scale window (6).

7. The steel heat-insulating and fireproof door according to claim 1, wherein A door closer is provided between the top of the door frame (1) and the door leaf (2).

8. The steel heat-insulating and fire-proof door according to claim 1, characterized in that, An observation window (3) is provided on the door leaf (2).

Images