CN110616997B

CN110616997B - Fireproof rolling shutter door

Info

Publication number: CN110616997B
Application number: CN201910964426.1A
Authority: CN
Inventors: 邹金成
Original assignee: Jiangsu Yimingchang Construction Engineering Co ltd
Current assignee: Shenzhen Tengyue Enterprise Technical Service Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-12-08
Anticipated expiration: 2039-10-11
Also published as: CN110616997A

Abstract

The invention discloses a fireproof rolling door, which belongs to the technical field of rolling doors and comprises a curtain body, wherein the curtain body is vertically connected to a door opening of a wall in a sliding manner, a storage box for rolling and unreeling the curtain body is fixedly arranged at the top of the door opening of the wall, the curtain body comprises a plurality of curtain sheets with the same structure, the curtain sheets are connected end to end, the curtain sheets are arranged in a hollow manner, and a fire extinguishing mechanism for slowing fire near the curtain body is arranged in each curtain sheet; the fire extinguishing mechanism comprises a dry powder fire extinguishing agent stored in a cavity of the curtain sheet at high pressure, a plurality of air injection pipes extending out of the curtain sheet are fixedly arranged at the bottom of one side of the curtain sheet close to the inside of a room, the air injection pipes are positioned in vertical notch grooves formed in the curtain sheet, a blocking block is inserted in the notch grooves and made of manganese dioxide.

Description

Fireproof rolling shutter door

Technical Field

The invention relates to the technical field of rolling doors, in particular to a fireproof rolling door.

Background

With the development of national modern construction, various types of industrial buildings are being developed rapidly, and in the process of construction, especially the prevention of fire is more and more emphasized by people. The fireproof rolling door is mainly used in fireproof subareas of various industrial, civil and public buildings, has special functions of fire prevention, smoke isolation, fire spread inhibition and personnel evacuation protection, and is widely applied to occasions with dense personnel, such as high-rise buildings, superstores and the like.

In addition, compared with a common rolling door, the fireproof rolling door has stricter requirements on fire resistance, and is required to meet the requirements of national standard TF3 fire resistance grade, and a fireproof rolling door with the fire resistance limit not less than 3 hours is a special fireproof rolling door with the temperature rise of the back fire surface as the judgment condition. The special-grade fireproof rolling shutter in the market can basically reach the minimum standard of special-grade fireproof requirements, and the existing special-grade fireproof rolling shutter comprises a single-rail single-curtain fireproof rolling shutter door, a double-rail double-curtain fireproof rolling shutter door, an aerial fog type fireproof rolling shutter door, an evaporative type fireproof rolling shutter door, an aerial fog type fireproof rolling shutter door and the like.

The prior art can refer to the Chinese patent with the publication number of CN107386941B, it discloses a fire-proof rolling shutter door, which comprises a guide rail, a curtain body and a winding device, wherein the curtain body is positioned in the guide rail, the winding device comprises a rolling shutter door machine and a scroll, a driving shaft of the rolling shutter door machine drives a scroll rotating shaft, the scroll is fixedly connected with the curtain body, wherein the curtain body comprises a supporting piece, a first curtain surface, a second curtain surface, a fireproof strip and a bottom beam, the first curtain surface is provided with a first inorganic fiber cotton, a first inorganic fiber cloth and a first silica gel cloth from the supporting piece to the outside in sequence, the second curtain surface is provided with a second inorganic fiber cotton, a second inorganic fiber cloth and a second silica gel cloth from the supporting piece to the outside in sequence, the first curtain surface and the second curtain surface are respectively positioned at two sides of the supporting piece, the fireproof strip is arranged between the supporting piece and the first curtain surface and also arranged between the supporting piece and the second curtain surface, and the bottom beam is connected between the bottom of the first curtain surface and the bottom of the second curtain surface.

However, although the fire-resistant rolling door has a fire-resistant function in case of a fire, i.e., the rolling door can prevent the fire from spreading within a certain time range, the rolling door is burnt even if the rolling door is in contact with an open fire for a long time, so that the rolling door is easy to burn when the rolling door encounters the open fire.

Disclosure of Invention

The invention aims to provide a fireproof rolling shutter door, wherein a fire extinguishing mechanism is arranged in a curtain body, open fire near the curtain body can be extinguished, the fire near the curtain body is reduced, and the service life of the curtain body is prolonged.

The technical purpose of the invention is realized by the following technical scheme:

a fire-proof rolling shutter door comprises a curtain body which is connected to a door opening of a wall body in a vertical sliding mode, a storage box for rolling and unreeling the curtain body is fixedly arranged at the top of the door opening of the wall body, the curtain body comprises a plurality of curtain pieces which are identical in structure and are connected end to end, the curtain pieces are arranged in a hollow mode, and a fire extinguishing mechanism for slowing fire near the curtain body is arranged in each curtain piece; the fire extinguishing mechanism comprises a dry powder fire extinguishing agent stored in a cavity of the curtain sheet at high pressure, a plurality of air injection pipes extending out of the curtain sheet are fixedly arranged at the bottom of one side, close to the inside of a room, of the curtain sheet, the air injection pipes are located in vertical notch grooves formed in the curtain sheet, and plugging blocks are inserted in the notch grooves and made of manganese dioxide.

By adopting the scheme, when a fire disaster occurs, the temperature of a fire scene is not lower than 400 ℃, because the melting point of manganese dioxide is 390 ℃, manganese dioxide melts, the gas jet pipe is conducted, the dry powder extinguishing agent in the curtain sheet is sprayed out from the gas jet pipe, volatile decomposition products of inorganic salt in the dry powder extinguishing agent and free radicals or active groups generated by fuel in the combustion process generate chemical inhibition and negative catalysis, the combustion chain reaction is interrupted, the fire is extinguished near the curtain body, the fire behavior near the curtain body is reduced, and the service life of the curtain body is prolonged.

The invention is further configured to: the heat insulation plate is located below the blocking block and provided with a holding groove, and a counterweight ball is fixedly arranged at the bottom of the blocking block.

Through adopting above-mentioned scheme, when the sprue melts, the sprue that the counter weight ball drove to melt drops to the holding tank downwards in, can prevent that the sprue that melts from blockking up the jet-propelled pipe.

The invention is further configured to: an annular heat insulation plate is fixedly arranged in the cavity of the curtain sheet.

Through adopting above-mentioned scheme, when the conflagration breaing out, the heat insulating board can slow down the heat and to the internal transmission of curtain, and the temperature when preventing the conflagration causes the damage to the dry powder extinguishing agent, and the heat insulating board can also play the supporting role to the curtain piece, prevents that the curtain piece from taking place deformation under the condition of high temperature.

The invention is further configured to: the cavity is positioned in the heat insulation plate and is provided with a flame-retardant strip which is abutted against the inner wall of the heat insulation plate, the flame-retardant strip is arranged in a U shape, and the dry powder extinguishing agent is stored in the flame-retardant strip.

Through adopting above-mentioned scheme, the ignition point of fire-retardant strip reduces and can play the supporting role to fire-retardant strip, not only can reduce the ignition point of curtain piece inside, and fire-retardant strip is the U type, and after the burning of one side of fire-retardant strip was accomplished, the fire-retardant strip of opposite side still played the supporting role to the curtain piece, reduced the curtain piece and taken place deformation after being heated.

The invention is further configured to: the top of curtain piece sets firmly curved trip, and the bottom of curtain piece sets firmly the connecting block, and one side of connecting block bottom sets firmly along its length direction turns over the arch of turning over inwards and forming and hook the trip, and the opposite side of connecting block bottom sets firmly the baffle.

Through adopting above-mentioned scheme, through trip and protruding cooperation between the adjacent curtain piece, the rolling of the curtain piece of being convenient for with unreel, the baffle that sets firmly of connecting block bottom, the baffle can prevent that the trip from breaking away from the arch when the rolling of curtain piece.

The invention is further configured to: the two sides of the wall body, which are positioned at the doorway, are fixedly provided with slide rails, one sides of the slide rails, which are opposite to each other, are provided with slide grooves, and the two sides of the curtain body are connected in the slide grooves in a sliding manner.

Through adopting above-mentioned scheme, the both sides of the curtain slide and connect in the spout, and the spout plays the guide effect to the curtain, makes the curtain more steady at the in-process that slides.

The invention is further configured to: a smoke removing mechanism for removing dense smoke is arranged on one side of the storage box close to the room; the receiver is close to one side in the room and has been seted up and accomodate the chamber, smoke abatement mechanism is including setting firmly in the air exhauster of accomodating the intracavity, the ventilation groove has been seted up to one side that the receiver is close to the room, it has the cloth that absorbs water that the gas permeability is good to accomodate one side that the intracavity is close to the room, the receiver is located the top that absorbs water the cloth and has set firmly the fixed box, the fixed box is used for the storage water, the bottom of fixed box has set firmly two discharging pipes, the end cap of constituteing by polyester fiber cloth has set firmly on the discharging pipe, one side that the discharging pipe is located the end cap sets firmly the perpendicular to.

Through adopting above-mentioned scheme, vent pipe gives the end cap with the heat transfer that the conflagration produced, and the melting point of polyester fiber cloth is 260 ℃, when the external conflagration that breaks out, the heat lets in on the end cap through vent pipe, melts after the end cap reaches the melting point, makes the water in the fixed incasement flow down to the cloth that absorbs water through the discharging pipe, makes the cloth that absorbs water can adsorb the part tiny particle in the dense cigarette.

The invention is further configured to: the storage box is located and has set firmly a filter screen between cloth and the fixed case absorb water, and the storage box is located and has set firmly the active carbon board between cloth and the air exhauster absorb water.

Through adopting above-mentioned scheme, on the water in the discharging tube flowed into the filter screen, the filter screen was with even the flow of water on the cloth that absorbs water, prevented that the water in the discharging tube only can drench the partial area that absorbs water the cloth, and the activated carbon board has certain adsorptivity, can adsorb the partial tiny particle in the dense cigarette.

In conclusion, the invention has the following beneficial effects:

1. the fire extinguishing mechanism for slowing down the fire near the curtain body is arranged in the curtain sheet; the fire extinguishing mechanism comprises a dry powder fire extinguishing agent stored in a cavity of the curtain sheet at high pressure, a plurality of gas injection pipes extending out of the curtain sheet are fixedly arranged at the bottom of one side of the curtain sheet close to the inside of a room, the gas injection pipes are positioned in vertical notch grooves formed in the curtain sheet, a blocking block is inserted in the notch grooves and made of manganese dioxide, when a fire breaks out, the manganese dioxide melts to conduct the gas injection pipes, the dry powder fire extinguishing agent in the curtain sheet is sprayed out from the gas injection pipes, volatile decomposition products of inorganic salt in the dry powder fire extinguishing agent and free radicals or active groups generated by fuel in the combustion process perform chemical inhibition and negative catalysis, so that the combustion chain reaction is interrupted to extinguish the fire near the curtain body, the fire potential near the curtain body is reduced, and the service life of the curtain body is prolonged;

2. a containing cavity is formed in one side, close to the indoor, of a containing box, an exhaust fan is arranged in the containing cavity, a ventilating groove is formed in one side, close to the indoor, of the containing box, water absorbing cloth with good air permeability is contained in one side, close to the indoor, of the containing box, a fixing box is fixedly arranged above the water absorbing cloth and used for storing water, two discharging pipes are fixedly arranged at the bottom of the fixing box, plugs composed of polyester fiber cloth are fixedly arranged on the discharging pipes, ventilating pipes perpendicular to the discharging pipes are fixedly arranged on one sides, located on the plugs, of the discharging pipes, extend out of the containing box and transmit heat generated by fire to the plugs, the melting point of the polyester fiber cloth is 260 ℃, when fire occurs in the external environment, the heat is introduced to the plugs through the ventilating pipes, the plugs melt after reaching the melting point, and water in the fixing box flows downwards to the water, the water absorption cloth can absorb part of small particles in the dense smoke.

Drawings

FIG. 1 is an isometric view of an embodiment;

FIG. 2 is a sectional view of the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a cross-sectional view of the smoke abatement mechanism shown;

fig. 6 is an enlarged view of a portion C of fig. 5.

In the figure, 1, a wall body; 11. a doorway; 12. a slide rail; 13. a chute; 2. a curtain body; 21. a curtain sheet; 210. a cavity; 211. connecting blocks; 212. a hook is clamped; 213. a protrusion; 214. a baffle plate; 3. a storage box; 31. a receiving cavity; 32. a ventilation slot; 4. a fire extinguishing mechanism; 41. a heat insulation plate; 42. a flame retardant strip; 43. a dry powder extinguishing agent; 44. a gas ejector tube; 441. a notch groove; 45. blocking; 451. a counterweight ball; 46. accommodating grooves; 5. a smoke removal mechanism; 51. an exhaust fan; 52. water-absorbing cloth; 53. a fixed box; 54. a discharge pipe; 541. a plug; 542. an air duct; 55. filtering with a screen; 56. an activated carbon plate.

Detailed Description

A fire-proof rolling shutter door, refer to fig. 1 and fig. 2, including the curtain body 2 that is connected to the doorway 11 of the wall body 1 in a vertical sliding manner, the wall body 1 is located at the top of the doorway 11 and fixedly provided with a storage box 3 for rolling and unreeling the curtain body 2; the two sides of the wall body 1 located at the doorway 11 are fixedly provided with slide rails 12, one side of each slide rail 12 opposite to the corresponding slide groove 13 is provided with a slide groove 13, the two sides of the curtain body 2 are connected in the slide grooves 13 in a sliding manner, and the slide grooves 13 play a role in guiding the curtain body 2, so that the curtain body 2 is more stable in the sliding process.

Referring to fig. 2 and 3, the curtain body 2 includes a plurality of curtain pieces 21 having the same structure, the curtain pieces 21 are connected end to end, the top of the curtain piece 21 is fixedly provided with an arc-shaped hook 212, the bottom of the curtain piece 21 is fixedly provided with a connecting block 211, one side of the bottom of the connecting block 211 is fixedly provided with a protrusion 213 which is turned inwards to hook the hook 212 along the length direction thereof, the other side of the bottom of the connecting block 211 is fixedly provided with a baffle 214, and the baffle 214 can prevent the curtain piece 21 from being separated from the protrusion 213 when the hook 212 is rolled. The curtain sheet 21 is hollow, and the fire extinguishing mechanism 4 for slowing down the fire near the curtain body 2 is arranged in the curtain sheet 21.

Referring to fig. 2 and 3, the fire extinguishing mechanism 4 includes a heat insulation board 41 fixed in the cavity 210, and in case of fire, the heat insulation board 41 can slow down the heat transfer into the curtain body 2 and can also support the curtain sheet 21; the cavity 210 is located in the heat insulation board 41 and is provided with the flame retardant strip 42 abutted to the inner wall of the heat insulation board 41, the flame retardant strip 42 is in a U-shaped arrangement, the ignition point of the flame retardant strip 42 is reduced and can support the flame retardant strip 42, the ignition point inside the curtain sheet 21 can be reduced, the flame retardant strip 42 is in a U-shaped arrangement, after one side of the flame retardant strip 42 is burnt, the flame retardant strip 42 on the other side still supports the curtain sheet 21, and the deformation of the curtain sheet 21 after being heated is reduced.

Referring to fig. 3 and 4, a dry powder extinguishing agent 43 is stored in the flame-retardant strip 42 at a high pressure, a plurality of gas injection pipes 44 extending out of the flame-retardant strip 42, the heat-insulating plate 41 and the curtain sheet 21 are fixedly arranged at the bottom of one side of the flame-retardant strip 42 close to the room, a vertical gap groove 441 is formed in the position of the gas injection pipe 44 on the heat-insulating plate 41, a blocking block 45 is inserted in the gap groove 441 and made of manganese dioxide, and the melting point of the manganese dioxide is 390 ℃; when a fire disaster occurs, the temperature of the fire scene is not lower than 400 ℃, manganese dioxide melts, so that the dry powder extinguishing agent 43 in the flame retardant strips 42 is sprayed out from the gas spraying pipes 44, the dry powder extinguishing agent 43 extinguishes the fire near the curtain body 2, and the fire behavior near the curtain body 2 is reduced. The heat insulation plate 41 is provided with a containing groove 46 below the blocking block 45, and the bottom of the blocking block 45 is fixedly provided with a counterweight ball 451; when the sprue 45 melts, the counterweight ball 451 drives the melted sprue 45 to drop downwards into the accommodating groove 46, so that the melted sprue 45 can be prevented from blocking the gas injection pipe 44.

Referring to fig. 5 and 6, a smoke removing mechanism for removing dense smoke is provided on the side of the storage box 3 close to the room (see fig. 2). The storage box 3 is provided with a storage cavity 31 at one side close to the indoor, the smoke removal mechanism 5 comprises an exhaust fan 51 fixedly arranged in the storage cavity 31, a ventilation groove 32 is formed at one side close to the indoor of the storage box 3, water absorption cloth 52 with good air permeability is stored at one side close to the indoor in the storage cavity 31, a fixed box 53 is fixedly arranged above the water absorption cloth 52 of the storage box 3 and is used for storing water, two discharge pipes 54 are fixedly arranged at the bottom of the fixed box 53, a plug 541 composed of polyester fiber cloth is fixedly arranged on each discharge pipe 54, a ventilation pipeline 542 which is perpendicular to the discharge pipes 54 and is communicated with the discharge pipes 54 is fixedly arranged at one side of each discharge pipe 54, and the ventilation pipeline 542 extends out of the storage box 3; the ventilation pipeline 542 transmits heat generated by fire to the plug 541, the melting point of the polyester fiber cloth is 260 ℃, when fire breaks out outside, the heat is introduced to the plug 541 through the ventilation pipeline 542, the plug 541 melts after reaching the melting point, water in the fixed box 53 flows downwards to the water absorbing cloth 52 through the discharge pipe 54, and the water absorbing cloth 52 can absorb partial small particles in the thick smoke. The storage box 3 is provided with a filter screen 55 between the water absorption cloth 52 and the fixed box 53, when water in the discharge pipe 54 flows into the filter screen 55, the filter screen 55 uniformly flows the water onto the water absorption cloth 52, and the water in the discharge pipe 54 is prevented from wetting only a part of the area of the water absorption cloth 52. The storage box 3 is provided with an activated carbon plate 56 between the water absorption cloth 52 and the exhaust fan 51, and the activated carbon plate 56 has certain adsorbability and can adsorb partial small particles in the dense smoke.

The use principle is as follows: when the temperature of the existing fire reaches a certain temperature, the manganese dioxide blocking blocks 45 in the gas spraying pipes 44 are melted, the counterweight balls 451 drop the blocking blocks 45 in the manganese dioxide into the accommodating grooves 46, so that the dry powder extinguishing agent 43 in the curtain sheet 21 is sprayed out from the gas spraying pipes 44, the fire behavior near the curtain body 2 is slowed down, and people in a room can escape; meanwhile, the plug 541 on the discharge pipe 54 melts, the water in the fixed box 53 uniformly wets the water absorption cloth 52, the exhaust fan 51 works to enable dense smoke to enter the accommodating cavity 31, and the water absorption cloth 52 and the activated carbon plate 56 in the accommodating cavity 31 can absorb small particles in the dense smoke in a word manner, so that the dense smoke near the curtain body 2 is reduced, and people can escape.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a fire prevention rolling slats door, includes vertical sliding connection in curtain (2) of gate (11) department of wall body (1), and the top that wall body (1) is located gate (11) has set firmly receiver (3) that carry out the rolling and unreel to curtain (2), and curtain (2) include that multi-disc structure the same curtain piece (21) end to end constitute, its characterized in that:

the curtain sheet (21) is hollow, and a fire extinguishing mechanism (4) for slowing down the fire near the curtain body (2) is arranged in the curtain sheet (21);

the fire extinguishing mechanism (4) comprises a dry powder fire extinguishing agent (43) stored in a cavity (210) of the curtain sheet (21) at high pressure, the bottom of one side, close to the inside of a room, of the curtain sheet (21) is fixedly provided with a plurality of gas injection pipes (44) extending out of the curtain sheet (21), the gas injection pipes (44) are positioned in the curtain sheet (21) and are provided with vertical notch grooves (441), a blocking block (45) is inserted in the notch grooves (441), and the blocking block (45) is made of manganese dioxide;

an annular heat insulation plate (41) is fixedly arranged in the cavity (210) of the curtain sheet (21);

the heat insulation plate (41) is provided with an accommodating groove (46) below the blocking block (45), and the bottom of the blocking block (45) is fixedly provided with a counterweight ball (451);

a smoke removing mechanism (5) for removing dense smoke is arranged on one side, close to the inside, of the storage box (3);

storage box (3) are close to one side indoor and have been seted up and accomodate chamber (31), smoke abatement mechanism (5) are including setting firmly air exhauster (51) in accomodating chamber (31), one side that storage box (3) are close to the room has seted up ventilation groove (32), one side that is close to the room in accomodating chamber (31) is accomodate and has had the cloth (52) that absorb water that the gas permeability is good, receiver (3) are located the top that absorbs water cloth (52) and have set firmly fixed box (53), fixed box (53) are used for storing water, the bottom of fixed box (53) has set firmly two discharging pipes (54), end cap (541) of constituteing by polyester fiber cloth has set firmly on discharging pipe (54), one side that discharging pipe (54) are located end cap (541) has set firmly perpendicular to discharging pipe (54) and with discharging pipe (54) interior intercommunication's vent line (542), vent line (542) extend storage box.

2. A fire resistant roller door as claimed in claim 1, wherein: the cavity (210) is positioned in the heat insulation plate (41) and is provided with the flame retardant strip (42) abutted to the inner wall of the heat insulation plate (41), the flame retardant strip (42) is arranged in a U shape, and the dry powder extinguishing agent (43) is stored in the flame retardant strip (42).

3. A fire resistant roller door as claimed in claim 1, wherein: the top of curtain piece (21) sets firmly curved trip (212), and the bottom of curtain piece (21) sets firmly connecting block (211), and one side of connecting block (211) bottom sets firmly along its length direction and turns over the arch (213) that form and hook trip (212) inwards, and the opposite side of connecting block (211) bottom sets firmly baffle (214).

4. A fire resistant roller door as claimed in claim 1, wherein: the two sides of the wall body (1) located at the doorway (11) are fixedly provided with sliding rails (12), one side of each sliding rail (12) opposite to the corresponding sliding groove (13) is provided with a sliding groove (13), and the two sides of the curtain body (2) are connected in the sliding grooves (13) in a sliding mode.

5. A fire resistant roller door as claimed in claim 1, wherein: storage box (3) are located and have set firmly one filter screen (55) between cloth (52) and fixed case (53) absorb water, and storage box (3) are located and have set firmly activated carbon plate (56) between cloth (52) and air exhauster (51) absorb water.