Fire extinguishing and preventing door with rapid cooling function

Abstract

The application provides a quick cooling fire extinguishing door, belonging to the field of fireproof doors, which comprises a door body and a door frame, the door body is connected with the door frame through a hinge, an inner heat insulation layer, a fireproof layer, an outer heat insulation layer and a cooling layer are arranged in the door body, a water tank and a cooling pipe are arranged in the cooling layer, the fireproof layer is provided with the inner heat insulation layer and the outer heat insulation layer on both sides respectively, handles are arranged on both sides of the door body, air injection holes are arranged on the upper part of the cooling layer, a door body drainage opening is arranged on the lower part of the cooling layer, a water channel is arranged in the door frame, a water supplement opening is arranged on the upper part of the water channel, and a door frame drainage opening is arranged on the lower part of the water channel. The application has the advantages of convenient cooling and convenient fire extinguishing.

Description

Technical Field

[0001] This invention belongs to the field of fire doors, specifically a fire-extinguishing door that provides rapid cooling. Background Technology

[0002] Current fire doors all contain basic functions, but with the development and progress of technology, the drawbacks and shortcomings of traditional fire doors have gradually become apparent. Because most fire doors are made of metal, they will be heated by high temperatures during a fire, which can burn both escapers and rescuers, hindering escape or rescue. Furthermore, it is very dangerous to open a fire door rashly when there is high temperature and flames behind it.

[0003] Currently, some fire doors have added fireproof and cooling structures, such as patent CN202321361752.1, which reduces the temperature of the fire door by introducing water pipes inside. However, the distribution of water pipes and the water supply method are difficult, which is not conducive to long-term use and results in high maintenance costs. Furthermore, the fire door is in an automatic locked state during cooling, which would be difficult for someone who needs to pass through in an emergency. Therefore, there is a need for a fire door that can overcome the above problems. Summary of the Invention

[0004] This invention provides a rapid-cooling fireproof door that facilitates both cooling and fire extinguishing, making it particularly suitable for situations requiring rapid cooling and rescue. The technical problem to be solved is that current fireproof doors are complex to use for cooling and fire extinguishing, and pedestrians cannot pass through during the cooling process.

[0005] The technical solution adopted in this invention is:

[0006] A fire-resistant door with rapid cooling includes a door body and a door frame. The door body is connected to the door frame by hinges. The interior of the door body is provided with an inner heat insulation layer, a fireproof layer, an outer heat insulation layer, and a cooling layer. The cooling layer is provided with a water tank and a cooling pipe. The fireproof layer is provided with an inner heat insulation layer and an outer heat insulation layer on both sides. Handles are provided on both sides of the door body. Air jet holes are provided on the upper part of the cooling layer, and drain outlets are provided on the lower part of the cooling layer.

[0007] The door frame is provided with a water channel inside, with a water inlet at the top of the water channel and a drain outlet at the bottom of the water channel.

[0008] Furthermore, the cooling layer is disposed on the side near the outside of the door, the outer heat insulation layer is in close contact with the outer heat insulation layer, the fireproof layer is in close contact with the side of the outer heat insulation layer away from the cooling layer, and the inner heat insulation layer is in close contact with the side of the fireproof layer away from the outer heat insulation layer.

[0009] Furthermore, one water tank is provided at the top, middle, and bottom, and adjacent water tanks are connected by cooling pipes. The upper water tank is connected to a jet nozzle, the outlet of which faces directly upward. The lower water tank is connected to a door drain outlet, the outlet of which faces directly downward.

[0010] Furthermore, a water receiving trough is provided below the air jet on the door body, and a water inlet is provided at the water trough at the bottom of the cooling layer.

[0011] Furthermore, the water receiving trough is a long strip, with both ends extending to the edge of the door. The water inlet includes a sealing cap, a connector, and a one-way valve. The water inlet passes through the inner insulation layer, the outer insulation layer, and the fireproof layer to connect to the water trough. The connector is located inside the door, and a one-way valve is installed inside the connector. The sealing cap is fixedly connected to the outside of the connector.

[0012] Furthermore, pressure check valves are installed inside both the jet hole and the door drain port.

[0013] Furthermore, the water channel inside the door frame surrounds the entire rectangular door frame. A water inlet is provided on the upper inner side of the door frame, and a door frame drain outlet is provided on the lower outer side of the door frame. Both the water inlet and the door frame drain outlet are equipped with pressure check valves, and both the water inlet and the door frame drain outlet are connected to the water channel.

[0014] Furthermore, a heat-insulating protective sleeve is provided on the outside of the handle.

[0015] Furthermore, an outer sealing strip, an inner sealing strip, and a vertical sealing strip are provided in the gap between the door frame and the door body. The outer sealing strip is located on the upper and lower sides of the inner frame of the door frame and close to the outer side of the door frame. The inner sealing strip is parallel to and close to the outer sealing strip and close to the outer side of the door frame. The vertical sealing strip is located on the left and right sides of the inner frame of the door frame and connects to the outer sealing strip.

[0016] A door sealing strip is installed in the gap between the door body and the door frame, and the door sealing strip is positioned corresponding to the outer sealing strip of the door frame;

[0017] The door sealing strip and the inner door frame sealing strip are hollow sealing strips. The top of the door sealing strip is tangent to the top of the outer door frame sealing strip, and the door sealing strip is tangent to the inner door frame sealing strip.

[0018] The above structure has the following beneficial effects:

[0019] 1. By using air jets to exhaust air from above and draining water from below through the door's drain outlet, the existing fire extinguishing functions overcome the problems of poor fire extinguishing effect and potential harm to people escaping at the door. This effectively blocks the combustion and spread of flames from the bottom by draining water from below, while hot air is sprayed from above to avoid scalding people. This effectively improves the fire extinguishing effect and also facilitates the escape of people at the door, expanding the safe area.

[0020] 2. By using a water tank and cooling pipe connection for heat absorption, the problem of existing fire doors being unable to cool down quickly is overcome, thus enabling rapid cooling and increasing the heat absorption and cooling area.

[0021] 3. Because the door frame is sealed by external sealing strips, internal sealing strips, vertical sealing strips, and door body sealing strips, and the internal sealing strips and door body sealing strips are hollow, the problem of poor sealing or fire resistance of existing sealing strips is overcome, thereby improving the sealing effect of the door gaps, and the sealing effect is improved as the temperature rises. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is the front view of the present invention;

[0024] Figure 3 This is a rear view of the present invention;

[0025] Figure 4 This is the left view of the present invention;

[0026] Figure 5 This is a top view of the present invention;

[0027] Figure 6 This is the invention Figure 4 Sectional view at point AA;

[0028] Figure 7 This is the invention Figure 3 Sectional view at point BB;

[0029] Figure 8 This is the invention Figure 7 Enlarged view at point C;

[0030] Figure 9 This is the invention Figure 7 Enlarged view at point D;

[0031] Figure 10 This is the invention Figure 3 Sectional view at EE;

[0032] Figure 11 This is the invention Figure 10 Sectional view at point F.

[0033] In the picture:

[0034] 1. Door body; 2. Door frame; 3. Handle; 4. Water inlet; 5. Air vent; 6. Door body drain outlet; 7. Water inlet; 8. Hinge; 101. Water inlet; 102. Cooling pipe; 103. Inner insulation layer; 104. Fireproof layer; 105. Outer insulation layer; 106. Door body sealing strip; 107. Cooling layer; 201. Door frame drain outlet; 202. Water inlet; 203. Water channel; 204. Door frame outer sealing strip; 205. Door frame inner sealing strip; 206. Door frame vertical sealing strip; 701. Sealing cap; 702. Connecting interface; 703. One-way valve. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1-11 As shown:

[0037] A rapid-cooling fireproof door includes a door body 1 and a door frame 2. The door body 1 is connected to the door frame 2 via hinges 8. The door body 1 is internally equipped with an inner heat insulation layer 103, a fireproof layer 104, an outer heat insulation layer 105, and a cooling layer 107. These layers are arranged sequentially from the inside to the outside of the fireproof door. The cooling layer 107 contains a water tank 101 and a cooling pipe 102. The water tank 101 effectively stores water for better heat absorption and cooling. The cooling pipe 102 increases the cooling area and connects well to the water tank 101. The fireproof layer 104 has an inner heat insulation layer 103 and an outer heat insulation layer 104 on both sides. The heat layer 105, inner insulation layer 103, and outer insulation layer 105 are made of vermiculite, aluminum silicate wool, rock wool, or perlite. The inner insulation layer 103 and outer insulation layer 105 effectively insulate heat and reduce the speed of heat transmission. Handles 3 are provided on both sides of the door 1. The upper part of the cooling layer 107 is provided with a jet hole 5, which can release pressure when the internal water vapor pressure is too high. The lower part of the cooling layer 107 is provided with a door drain outlet 6, which can better drain water from below to wet the ground when the water pressure increases. The wet ground prevents the flame from burning and spreading from the bottom of the flame, thereby ensuring the safety range near the door and effectively protecting people who need to escape.

[0038] The interior of the door frame 2 is equipped with a water channel 203, which can help the door frame dissipate heat. A water inlet 202 is set at the upper part of the water channel 203. Due to the principle of cold water sinking and hot water rising, the temperature of the door frame can be reduced better and faster. A door frame drain outlet 201 is set at the lower part of the water channel 203. The door frame drain outlet 201 drains water quickly from below, cooling down and dispersing the flame area at the same time.

[0039] The cooling layer 107 is located on the side closest to the outside of the door. It absorbs heat before the fireproof layer 104 is applied, thus ensuring that the temperature on the fire-free side is lower, protecting the safety of rescue personnel and facilitating their opening of the door. The outer heat insulation layer 105 is in close contact with the cooling layer 107, the fireproof layer 104 is in close contact with the outer heat insulation layer 105 on the side away from the cooling layer 107, and the inner heat insulation layer 103 is in close contact with the fireproof layer 104 on the side away from the outer heat insulation layer 105. Heat transfer must pass through the cooling layer 107 for cooling before passing through the outer heat insulation layer 105, the fireproof layer 104, and the inner heat insulation layer 103, effectively reducing the speed of heat propagation, preventing burns to rescue personnel, and allowing for convenient and quick opening of the door from the outside.

[0040] One water tank 101 is installed at the top, middle, and bottom. Adjacent water tanks 101 are connected by a cooling pipe 102. The upper water tank 101 is connected to a jet nozzle 5, with the outlet of the jet nozzle 5 facing directly upwards. Because heating water will produce a large amount of water vapor, the jet nozzle 5 can effectively release air pressure, preventing excessive internal air pressure, and can also quickly release heat. The lower water tank 101 is connected to a door drain outlet 6, with the outlet of the door drain outlet 6 facing directly downwards. Because fire extinguishing requires rapid extinguishing from the base of the flames, traditional fire extinguishing doors do not target the base of the flames, resulting in poor extinguishing effect. Furthermore, during the extinguishing process, people preparing to escape at the door may be scalded. The lower door drain outlet 6 effectively avoids scalding people and extinguishes the fire from the ground, resulting in a better extinguishing effect. After the fire is extinguished, a puddle of water will form on the ground, preventing the flames from spreading and providing a fire-free safe zone for people preparing to escape.

[0041] A water collection tank 4 is installed below the air jet vent 5 on the door body 1. The water collection tank 4 prevents water vapor from dripping and scalding the people escaping after it liquefies. A water inlet 7 is installed at the water tank 101 at the bottom of the cooling layer 107. Cold water can be quickly introduced from the outside through the water inlet 7. The cold water can quickly cool the door body and at the same time extinguish the fire and retard the flame from below.

[0042] The water inlet 4 is a long strip, with both ends extending to the edge of the door. It effectively diverts the high-temperature liquefied water and avoids scalding the escapers after the high-temperature steam liquefies. The water inlet 7 includes a sealing cover 701, a connection interface 702, and a one-way valve 703. The water inlet 7 passes through the inner insulation layer 103, the outer insulation layer 105, and the fireproof layer 104 and connects to the water tank 101. The connection interface 702 is located inside the door 1. The one-way valve 703 is installed inside the connection interface 702. The sealing cover 701 is fixedly connected to the outside of the connection interface 702. The water inlet 7 can easily and quickly replenish the water tank 101, which facilitates rapid cooling and fire extinguishing.

[0043] Both the jet port 5 and the door drain port 6 are equipped with pressure check valves. The check valves can better control the pressure and facilitate the control of the exhaust and drainage pressure.

[0044] The water channel 203 inside the door frame 2 surrounds the entire rectangular door frame, which can better cool the entire door frame 2. A water inlet 202 is set on the upper inner side of the door frame 2. The water inlet 202 can better promote the cooling of the door frame by utilizing the principle of cold water sinking and hot water rising. A door frame drain outlet 201 is set on the lower outer side of the door frame 2. The drain outlet 201 extinguishes fire from below, thereby promoting the formation of a fireproof zone. Both the water inlet 202 and the door frame drain outlet 201 are equipped with pressure check valves, and both the water inlet 202 and the door frame drain outlet 201 are connected to the water channel 203.

[0045] The handle 3 is equipped with a heat-insulating protective cover, which effectively prevents the handle from burning escapees or rescuers.

[0046] An outer sealing strip 204, an inner sealing strip 205, and a vertical sealing strip 206 are installed in the gap between the door frame 2 and the door body 1. The outer sealing strip 204 is located on the upper and lower sides of the inner frame of the door frame 2 and close to the outer side of the door frame 2. The inner sealing strip 205 is parallel to and tightly attached to the outer sealing strip 204 and close to the outer side of the door frame. The vertical sealing strip 206 is located on the left and right sides of the inner frame of the door frame 2 and connects to the outer sealing strip 204. A door body sealing strip 106 is installed in the gap between the door body 1 and the door frame 2, and the door body sealing strip 106 is positioned corresponding to the outer sealing strip 204. The outer sealing strip 204 of the door frame is a solid sealing strip, while the door body sealing strip 106, the inner sealing strip 205 of the door frame, and the vertical sealing strip 206 of the door frame are all hollow structures. The hollow sealing strip will expand due to thermal expansion and contraction when exposed to high temperatures, thereby quickly sealing the door gap. Traditional sealing strips rely on transition fit and mutual compression for sealing, which not only easily leads to material fatigue, but also causes the seal to fail over time. The hollow structure will expand to seal as the temperature rises and will also recover as the temperature drops, improving the sealing effect while avoiding fatigue and aging of the sealing strip.

[0047] The top of the door sealing strip 106 is tangent to the top of the outer door frame sealing strip 204, and the door sealing strip 106 is tangent to the inner door frame sealing strip 205. This tangent structure allows the sealing strip to provide a basic sealing effect when it is not inflated.

[0048] How this example works:

[0049] During use, the water tank 101 in the cooling layer 107 is pre-filled with water. In the event of a fire, this water can quickly absorb the high temperature of the flames, ensuring that the temperature of the fire door does not become too high. This facilitates escape and rescue personnel opening the door, preventing burns. If the water temperature becomes too high, the internal air pressure will become too high, and the jet nozzle 5 will then spray high-pressure steam upwards, effectively preventing burns. Furthermore, to prevent burns from liquefied steam dripping down, the water tank 4 guides the liquefied water to both sides of the door. When rescue personnel arrive, they can access the door through the water inlet. Water is added to the water tank 101 through outlet 7, quickly replenishing the water supply and simultaneously cooling the door. When the water pressure is too high, excess water will be discharged downwards through drain outlet 6. Since fire extinguishing requires attacking the flames at their base, draining water from below quickly extinguishes flames near the fire door and creates water accumulation around the door. This water effectively prevents the spread of flames, creating a fire-free safety zone near the door, ensuring the safety of evacuees and rescuers, and improving rescue efficiency. It also facilitates rapid cooling of the fire door.

[0050] The door 1 also has an outer insulation layer 105 and an inner insulation layer 103 for heat insulation. The double insulation layer isolates high temperatures, ensuring that the external temperature is not too high and facilitating opening by rescuers. Between the double insulation layers, there is a fireproof layer 104 to retard the flame and ensure the fireproof effect of the fire door. To improve the cooling effect, the door frame 2 is cooled by water channels 203. The door frame 2 is replenished with water through water inlets 202 and drained through door frame drain outlets 201. The drained water serves the same function as the door body drain outlet 6, improving the fire extinguishing effect and accelerating the formation of a safe zone.

[0051] The fire door is initially sealed between the door body 1 and the door frame 2 by the mutually tangent outer sealing strip 204 and door body sealing strip 106. The vertical sealing strip 206 of the door frame and the door body sealing strip 106 are mutually tangent and provide initial sealing. The door body sealing strip 106, the inner sealing strip 205 of the door frame and the vertical sealing strip 206 of the door frame are hollow sealing strips. When exposed to high temperature, they will expand due to high temperature, thereby improving the sealing effect and ensuring that toxic fumes will not leak. At the same time, when the jet hole 5 discharges water vapor, it can also absorb some of the toxic fumes, effectively ensuring the convenience and efficiency of cooling the fire door.

[0052] The directional terms used in this invention, such as "up", "down", "left", and "right", are only for better and clearer explanation and understanding of this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] The preferred embodiments of the present invention have been described above, but should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A fire extinguishing and preventing door with rapid cooling, comprising a door body (1) and a door frame (2), characterized in that: The door body (1) is connected to the door frame (2) by a hinge (8). The door body (1) is provided with an inner heat insulation layer (103), a fireproof layer (104), an outer heat insulation layer (105) and a cooling layer (107). The cooling layer (107) is provided with a water tank (101) and a cooling pipe (102). The fireproof layer (104) is provided with an inner heat insulation layer (103) and an outer heat insulation layer (105) on both sides. The door body (1) is provided with handles (3) on both sides. The cooling layer (107) is provided with a jet hole (5) at the top and a door body drain outlet (6) at the bottom. The door frame (2) is provided with a water channel (203) inside, with a water inlet (202) at the upper part of the water channel (203) and a door frame drain outlet (201) at the lower part of the water channel (203).

2. The fire door according to claim 1, wherein: The cooling layer (107) is located on the side close to the outside of the door. The outer heat insulation layer (105) is in close contact with the outer heat insulation layer (105). The fireproof layer (104) is in close contact with the side of the outer heat insulation layer (105) away from the cooling layer (107). The inner heat insulation layer (103) is in close contact with the side of the fireproof layer (104) away from the outer heat insulation layer (105).

3. A fire door according to claim 2, wherein: One water tank (101) is provided at the top, middle and bottom. Adjacent water tanks (101) are connected by a cooling pipe (102). The upper water tank (101) is connected to a jet hole (5), and the outlet of the jet hole (5) faces directly upward. The lower water tank (101) is connected to a door drain outlet (6), and the outlet of the door drain outlet (6) faces directly downward.

4. A fire door according to claim 3, wherein: The door body (1) is provided with a water receiving tank (4) below the jet hole (5), and the cooling layer (107) is provided with a water inlet (7) at the water tank (101) below the water tank.

5. A fire door according to claim 4, wherein: The water receiving trough (4) is a long strip, with both ends of the water receiving trough (4) extending to the edge of the door body. The water inlet (7) includes a sealing cap (701), a connection interface (702), and a one-way valve (703). The water inlet (7) passes through the inner heat insulation layer (103), the outer heat insulation layer (105), and the fireproof layer (104) to connect to the water trough (101). The connection interface (702) is located inside the door body (1). The one-way valve (703) is installed inside the connection interface (702). The sealing cap (701) is fixedly connected to the outside of the connection interface (702).

6. A fire door according to claim 5, wherein: Both the jet hole (5) and the door drain port (6) are equipped with pressure check valves.

7. A fire door according to claim 1, wherein: The water channel (203) inside the door frame (2) surrounds the entire rectangular door frame. A water inlet (202) is provided on the upper inner side of the door frame (2), and a door frame drain outlet (201) is provided on the lower outer side of the door frame (2). Both the water inlet (202) and the door frame drain outlet (201) are equipped with pressure check valves, and both the water inlet (202) and the door frame drain outlet (201) are connected to the water channel (203).

8. A fire-resistant door for rapid cooling according to claim 1, characterized in that: The handle (3) is provided with a heat-insulating protective sleeve.

9. A fire door according to claim 1, wherein: The gap between the door frame (2) and the door body (1) is provided with an outer sealing strip (204), an inner sealing strip (205), and a vertical sealing strip (206). The outer sealing strip (204) is located on the upper and lower sides of the inner frame of the door frame (2) and close to the outer side of the door frame (2). The inner sealing strip (205) is parallel to and close to the outer sealing strip (204) and close to the outer side of the door frame. The vertical sealing strip (206) is located on the left and right sides of the inner frame of the door frame (2) and connects to the outer sealing strip (204). A door sealing strip (106) is provided in the gap between the door body (1) and the door frame (2), and the door sealing strip (106) is positioned corresponding to the outer sealing strip (204) of the door frame; The door sealing strip (106) and the inner door frame sealing strip (205) are hollow sealing strips. The top of the door sealing strip (106) is tangent to the top of the outer door frame sealing strip (204), and the door sealing strip (106) is tangent to the inner door frame sealing strip (205).

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