CN212928898U

CN212928898U - High-sealing smoke-discharging fire-proof valve

Info

Publication number: CN212928898U
Application number: CN202021705666.4U
Authority: CN
Inventors: 王行新; 徐斌; 陈正洲; 蔡国健
Original assignee: Nanjing Tianyi Fire Engineering Co ltd
Current assignee: Nanjing Tianyi Fire Engineering Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-04-09
Anticipated expiration: 2030-08-14

Abstract

The application relates to a high-tightness smoke-discharging fire-proof valve, relating to the technical field of fire-proof valves; the main technical scheme includes that the valve comprises a valve body, a valve connected to the valve body in a sliding mode, and a limiting piece arranged on the valve body and used for limiting the position of the valve according to the temperature, wherein a sealing assembly used for sealing a gap between the valve and the valve body is arranged on the valve body, the valve and the valve body are arranged in the height direction, and the sealing assembly is located below the valve; under the normal condition, the height of locating part restriction valve, open the valve body, when the conflagration breaing out, the smog of conflagration passes through the valve body and discharges, indoor temperature risees gradually, and the locating part senses the temperature and risees the back, and automatic the removing is spacing to the valve, and the valve is thus utilized the dead weight to fall down, and when the valve fell down, seal assembly seals the gap between valve and the valve body simultaneously, improves the leakproofness between valve and the valve body, reduces the possibility that smog stretchs through the gap, reduces the conflagration emergence and stretchs the possibility.

Description

High-sealing smoke-discharging fire-proof valve

Technical Field

The application relates to the technical field of fire damper of discharging fume, especially relate to a fire damper of discharging fume of high leakproofness.

Background

The fire damper is a normally open type valve, and the smoke exhaust fan is started mainly by sensing temperature or smoke generated by fire to exhaust the smoke generated by the fire, wherein the smoke exhaust fire damper is used for automatically melting and closing the valve when people basically evacuate and the smoke contains flame when the temperature is higher than 280 ℃, and meanwhile, the smoke exhaust fan stops to reduce the possibility of fire spreading.

Chinese utility model patent with grant publication number CN207500500U discloses a long-range fire prevention valve of discharging fume, including the casing, the inside valve that is equipped with of casing, the valve top is equipped with the valve pivot, is equipped with temperature sensor on the valve, and the casing top is equipped with the control box, is equipped with the axis of rotation in the control box, is equipped with the handle on the axis of rotation end wall, is equipped with in the casing to be used for driving pivot pivoted motor.

Under normal conditions, a worker manually rotates the handle to drive the valve rotating shaft to rotate, and the valve rotating shaft drives the valve to rotate to open the valve; when a fire disaster happens, smoke generated by the fire disaster is smoothly discharged through the opened valve, and when the temperature exceeds 280 ℃, the motor is automatically started, so that the rotating shaft of the valve is driven to rotate, and the valve is closed; however, the sealing structure is not arranged in the shell, so that a larger gap is formed in the shell after the valve is closed, and smoke is still transmitted outwards through the gap after the valve is closed, so that the possibility of fire spreading is increased.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility of smoke leakage and the possibility of fire spreading, the application provides a high-tightness smoke-discharging fire-resisting damper.

The application provides a high leakproofness fire prevention valve that discharges fume adopts following technical scheme:

the utility model provides a high leakproofness fire prevention valve of discharging fume, includes the valve body, slides the valve of connection on the valve body and sets up on the valve body and be used for according to the locating part of the high low restriction valve position of temperature, be equipped with the seal assembly who is used for sealing the gap between valve and the valve body on the valve body, the valve with the direction of height setting of valve body, seal assembly is located the valve below.

Through adopting above-mentioned technical scheme, under the normal condition, the locating part limits the height of valve, open the valve body, when the conflagration breaing out, the smog of conflagration passes through the valve body and discharges, indoor temperature risees gradually, the locating part senses the temperature and risees the back, automatic spacing to the valve of removing, the valve is thus utilized the dead weight and falls down, when the valve falls down, seal assembly seals the gap between valve and the valve body simultaneously, improve the leakproofness between valve and the valve body, reduce the possibility that smog stretchs through the gap, reduce the possibility that the conflagration emergence was stretched.

Preferably, seal assembly includes closing plate and sealing spring, be equipped with on the valve body diapire and supply valve male seal groove, be equipped with the draw-in groove on the groove lateral wall of seal groove, the draw-in groove is followed the length direction setting of seal groove, the closing plate slides and connects in the draw-in groove, sealing spring is located between closing plate and the draw-in groove, sealing spring follows the thickness direction setting of valve, sealing spring's one end with the side of closing plate is inconsistent, the other end is contradicted with the tank bottom wall of seal groove, sealing spring's one side is kept away from to the closing plate is stretched out the draw-in groove, the closing plate stretches out one side of draw-in groove is equipped with the inclined plane of sliding, the inclined plane of sliding inserts one side in the seal groove towards the.

Through adopting above-mentioned technical scheme, when the valve fell down, the valve inserted in the seal groove, and the valve extrusion inclined plane that slides simultaneously to promote the closing plate and insert the draw-in groove, closing plate extrusion sealing spring takes place compression deformation, and when the draw-in groove was relative with the connecting groove, thereby sealing spring counteracts and does not promote the closing plate and stretch out the draw-in groove in the closing plate, reinserts in the connecting groove, thereby seals the gap between valve and the valve body smoothly, improves the leakproofness between valve body and the valve.

Preferably, be equipped with the packing groove on the groove lateral wall of seal groove, the packing groove is followed the length direction of seal groove sets up, be equipped with the packing pad in the packing groove, it is connected with the shrouding to slide on the groove lateral wall of seal groove, the shrouding covers the packing groove, be equipped with on the diapire of shrouding and support tight spring, be equipped with on the tank bottom wall of seal groove and support tight groove, support the one end that tight spring kept away from the shrouding and stretch into and support in the tight groove, support the height that tight groove is greater than the height of shrouding.

By adopting the technical scheme, when a fire disaster occurs, the indoor temperature is high, heat generated by the fire disaster is transferred into the valve body and then transferred into the expansion pad, and the sealing plate is extruded after the expansion pad is heated and expanded; when the valve inserts in the seal groove, the roof of shrouding is extruded to the side of valve to promote the shrouding to slide, seal the extrusion and support tight spring and take place compression deformation, thereby the shrouding slides in supporting tight inslot, opens the filling groove smoothly, thereby fills and fill up and stretch out the filling groove, the extrusion valve, with this clearance that reduces between valve and the seal groove, further improve the leakproofness between valve and the valve body.

Preferably, the valve is made of metal materials, a magnet is arranged in the valve body, and the magnet is opposite to the valve and located below the valve.

Through adopting above-mentioned technical scheme, when the valve inserts in the seal groove, magnet produces the appeal to the valve to increase the extrusion force between valve and the seal groove, be favorable to increasing the leakproofness between valve and the valve body.

Preferably, the groove bottom wall of the sealing groove is provided with a plurality of protrusions, and the side face of the valve is provided with a plurality of grooves for the protrusions to insert into.

Through adopting above-mentioned technical scheme, the valve inserts in the seal groove back, and the arch increases the area of contact between valve and the valve body in inserting the recess, is favorable to further improving the leakproofness between valve and the valve body.

Preferably, the opposite two side walls of the valve body are provided with sliding grooves for sliding the valve body, and the sliding grooves are arranged in the height direction of the valve.

Through adopting above-mentioned technical scheme, the valve is when the whereabouts, and the spout restriction valve's moving direction is favorable to the valve to insert smoothly in the seal groove when the whereabouts, and the spout increases the area of contact between valve and the valve body simultaneously, is favorable to improving the leakproofness between valve and the valve body.

Preferably, the sliding groove is filled with a sealing gasket, and the side surface of the sealing gasket is attached to the side surface of the valve.

Through adopting above-mentioned technical scheme, the sealed gap of filling between spout and the valve of filling, further improves the leakproofness between valve and the valve body.

Preferably, the locating part is including articulating the limiting plate on the valve body, the roof of limiting plate with the diapire of valve is inconsistent, be equipped with fusing metal post on the valve, fusing metal post with the diapire of limiting plate is inconsistent.

Through adopting above-mentioned technical scheme, under the normal condition, the dead limiting plate of fusing metal post card, thereby the dead valve of limiting plate card, when the conflagration breaing out, the temperature risees, and fusing metal post receives when high temperature, automatic fusing to remove the locking to the shrouding, valve extrusion shrouding, thereby remove the spacing to the valve, thereby the valve falls down smoothly, seals the valve body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a fire disaster does not happen, the position of the valve is limited through the limiting piece, so that the valve body is kept in an opening state, smoke generated by the fire disaster is discharged through the valve body when the fire disaster happens, the indoor temperature is continuously raised due to heat generated by the fire disaster, when the temperature is higher, the limiting piece automatically relieves the limiting on the valve, the valve automatically falls down, and after the valve falls down, a gap between the valve and the valve body is sealed through the sealing assembly, so that the sealing performance between the valve and the valve body is improved, the possibility of discharging the smoke through the gap is reduced, and the possibility of spreading of the fire disaster is favorably reduced;

2. when the valve is inserted into the sealing groove, the magnet increases attraction force on the valve, so that extrusion force between the valve and the bottom wall of the sealing groove is increased, the possibility of generating a gap between the valve and the valve body is reduced, and the sealing property between the valve and the valve body is further improved;

3. the sealing gasket reduces the possibility of generating a gap between the sliding groove and the valve, is favorable for improving the sealing property between the valve and the sliding groove, and reduces the possibility of discharging smoke through the gap.

Drawings

FIG. 1 is a schematic view of the overall structure of the high-sealing smoke evacuation fire damper in the embodiment.

Fig. 2 is a schematic cross-sectional structure diagram of the valve body, the valve, the limiting member and the sealing member according to the embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Description of reference numerals: 1. a valve body; 11. a valve; 111. connecting grooves; 112. a groove; 12. a notch; 13. a chute; 131. a gasket; 14. a sealing groove; 141. a card slot; 142. a protrusion; 143. filling the groove; 144. closing the plate; 145. filling the pad; 146. the spring is tightly propped; 147. abutting against the groove; 15. a magnet; 2. a limiting member; 21. a limiting plate; 22. fusing the metal pillar; 3. a seal assembly; 31. a sealing plate; 311. a sliding slope; 32. and sealing the spring.

Detailed Description

The embodiment of the application discloses high leakproofness fire prevention valve that discharges fume.

Examples

Referring to fig. 1 and 2, high leakproofness smoke exhaust fireproof valve includes valve body 1, valve 11, locating part 2 and seal assembly 3, valve body 1 can be fixed on building wall, also can fix on air pipe, the longitudinal section of valve body 1 adopts the rectangle, be equipped with breach 12 on the roof of valve body 1, valve 11 slides and connects in breach 12, valve 11 sets up along valve body 1's direction of height, locating part 2 sets up on valve body 1's interior roof and is used for according to the high or low restriction valve 11 position of temperature, seal assembly 3 sets up on valve body 1 interior diapire and is used for sealing the gap between valve 11 and the valve body 1, seal assembly 3 is located valve 11's below.

Referring to fig. 1 and 2, two opposite inner side walls of the valve body 1 are respectively provided with a sliding chute 13, the side surface of the valve 11 is connected in the sliding chute 13 in a sliding manner, the sliding chute 13 is arranged along the height direction of the valve 11, a sealing gasket 131 is embedded on the inner side wall of the sliding chute 13, and the sealing gasket 131 is made of asbestos material; in a normal working state, the position of the valve 11 is limited by the limiting part 2, so that the valve body 1 is kept in an open state, smoke generated by a fire disaster is smoothly discharged through the valve body 1 when the fire disaster occurs, the indoor temperature is rapidly increased when the fire disaster occurs, the limiting part 2 senses the indoor temperature, so that the limiting on the valve 11 is automatically removed, the valve 11 automatically falls down by virtue of self weight, the valve 11 slides in the sliding groove 13 while falling, the moving direction of the valve 11 is limited, and after the valve 11 falls down, a gap between the valve 11 and the valve body 1 is sealed by the sealing component 3, so that the valve body 1 is smoothly sealed, the possibility that the smoke is discharged outwards through the gap is reduced, and the possibility that the fire disaster spreads is reduced; the sealing gasket 131 reduces the possibility of generating a gap between the valve 11 and the chute 13, which is beneficial to improving the sealing property between the valve 11 and the valve body 1, and the asbestos material also has good flame retardant property, so that the possibility of heating and burning of the sealing gasket 131 is reduced.

Referring to fig. 3, the limiting member 2 includes a limiting plate 21, the limiting plate 21 is hinged to the inner top wall of the valve body 1, the limiting plate 21 closes the notch 12, the limiting plate 21 may be provided in plurality, the limiting plates 21 are uniformly distributed along the width direction of the valve 11, the inner top wall of the valve body 1 is welded with a fusing metal post 22 made of alloy, the fusing metal post 22 and the limiting plate 21 are respectively located at two sides of the notch 12, one side of the limiting plate 21, which is far away from the hinge point, is inserted between the fusing metal post 22 and the inner top wall of the valve body 1, and the top wall of the limiting plate 21 is; when a fire disaster occurs, after the indoor temperature rises gradually, when the indoor temperature reaches more than 280 ℃, the fusing metal column 22 is fused automatically, so that the fixing of the limiting plate 21 is released, the valve 11 pushes the limiting plate 21 to rotate by means of dead weight, the notch 12 is opened, the valve 11 slides into the valve body 1 smoothly, and the valve body 1 is closed.

Referring to fig. 3 and 4, a sealing groove 14 into which the valve 11 is inserted is formed on an inner bottom wall of the valve body 1, the sealing groove 14 communicates with the sliding groove 13, and the seal assembly 3 is disposed in the sealing groove 14.

Referring to fig. 3 and 4, the seal assembly 3 includes a seal plate 31 and a seal spring 32, the seal plate 31 is slidably connected in the seal groove 14, the seal plate 31 is arranged in the length direction of the seal groove 14, one end of the seal spring 32 is welded to the side surface of the seal plate 31, the other end is welded to the bottom wall of the seal groove 14, the seal spring 32 is arranged in the thickness direction of the valve 11, one side of the seal plate 31, which is far away from the seal spring 32, extends into the seal groove 14, one side of the seal plate 31, which extends into the seal groove 14, is provided with a sliding inclined surface 311, the sliding inclined surface 311 of the seal plate 31 is arranged toward one side of the valve 11, which is inserted into the seal groove 14, and the side surface of the valve 11 is provided with a connection groove 111; when the valve 11 is inserted into the sealing groove 14, the edge of the valve 11 presses the sliding inclined surface 311, so as to push the sealing plate 31 to extend into the clamping groove 141, the sealing plate 31 thereby presses the sealing spring 32 to generate compression deformation, and when the clamping groove 141 is opposite to the connecting groove 111, the sealing spring 32 recovers deformation to push the sealing plate 31 to extend into the connecting groove 111, so as to close the gap between the valve 11 and the sealing groove 14, and reduce the possibility that smoke is discharged through the gap.

Referring to fig. 4, the valve 11 is made of a chromium-molybdenum alloy material, a magnet 15 is arranged in the valve body 1, the magnet 15 is located below the sealing groove 14, the magnet 15 is arranged opposite to the valve 11, a plurality of protrusions 142 are arranged on the bottom wall of the sealing groove 14, and a plurality of grooves 112 for the protrusions 142 to be inserted are arranged on the bottom wall of the valve 11; the chromium-molybdenum alloy has excellent high temperature resistance, and can be attracted by the magnet 15, when the valve 11 is inserted into the sealing groove 14, the magnet 15 exerts attraction on the valve body 1, so that the extrusion force between the valve 11 and the groove bottom wall of the sealing groove 14 is increased, the protrusion 142 is matched with the groove 112, the contact area between the valve 11 and the sealing groove 14 is increased, the possibility of generating a gap between the valve 11 and the sealing groove 14 is reduced, and the sealing performance between the valve 11 and the valve body 1 is improved.

Referring to fig. 3 and 4, a filling groove 143 is formed in a groove side wall of the sealing groove 14, the filling groove 143 is arranged along a length direction of the sealing groove 14, the filling groove 143 is arranged opposite to the clamping groove 141, a filling pad 145 is installed in the filling groove 143, the filling pad 145 is made of expanded graphite, a sealing plate 144 is arranged on the groove side wall of the sealing groove 14, the sealing plate 144 is connected to the groove side wall of the sealing groove 14 in a sliding manner by matching with a dovetail groove through a dovetail block, the sealing plate 144 is arranged to seal the filling groove 143, a resisting spring 146 is arranged on a bottom wall of the sealing plate 144, a resisting groove 147 is formed in a groove bottom wall of the sealing groove 14, one end of the resisting spring 146, which is far away from the resisting plate, is fixedly connected with the groove bottom wall; when the temperature rises in the fire room, the expanded graphite is heated and expanded, when the valve 11 is inserted into the sealing groove 14, the bottom wall of the valve 11 pushes the sealing plate 144 to move, thereby the sealing plate 144 extrudes the abutting spring 146 to extend into the abutting groove 147, when the sealing plate 144 is inserted into the abutting groove, the filling groove 143 is opened, thereby the filling pad 145 extends out of the filling groove 143, the valve 11 is extruded, thereby the gap between the valve 11 and the sealing groove 14 is filled, and the sealing performance between the valve 11 and the valve body 1 is further improved.

The implementation principle of the embodiment is as follows: under normal conditions, the position of locating part 2 restriction valve 11, thereby keep valve body 1 to be in normally open state, when the conflagration breaing out, smog that the conflagration produced is discharged through valve body 1 smoothly, when indoor temperature lasts to rise, locating part 2 auto-induction indoor temperature and remove spacing to valve 11, valve 11 thereby relies on the automation to fall down, seal the gap between valve 11 and the valve body 1 through seal assembly 3, thereby seal valve body 1 smoothly, reduce smog and pass through the outside exhaust possibility in gap, be favorable to reducing the possibility that the conflagration spreads.

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

Claims

1. The utility model provides a high leakproofness fire prevention valve that discharges fume which characterized in that: including valve body (1), slide valve (11) of connection on valve body (1) and set up locating part (2) that just is used for limiting valve (11) position according to the temperature height on valve body (1), be equipped with on valve body (1) and be used for sealing seal assembly (3) in gap between valve (11) and valve body (1), valve (11) are followed the direction of height setting of valve body (1), seal assembly (3) are located valve (11) below.

2. The high-sealability smoke-discharging fire-resisting valve according to claim 1, wherein: the sealing assembly (3) comprises a sealing plate (31) and a sealing spring (32), wherein a sealing groove (14) for inserting a valve (11) is formed in the bottom wall of the valve body (1), a clamping groove (141) is formed in the groove side wall of the sealing groove (14), the clamping groove (141) is arranged along the length direction of the sealing groove (14), the sealing plate (31) is connected in the clamping groove (141) in a sliding mode, the sealing spring (32) is located between the sealing plate (31) and the clamping groove (141), the sealing spring (32) is arranged along the thickness direction of the valve (11), one end of the sealing spring (32) is abutted to the side face of the sealing plate (31), the other end of the sealing spring is abutted to the groove bottom wall of the sealing groove (14), one side, far away from the sealing spring (32), of the sealing plate (31) extends out of the clamping groove (141), a sliding inclined plane (311) is arranged on one side, extending out of the, the inclined plane (311) that slides inserts one side in seal groove (14) towards valve (11), be equipped with on valve (11) and supply seal plate (31) male spread groove (111).

3. The high-sealability smoke-discharging fire-resisting valve according to claim 2, wherein: be equipped with on the groove lateral wall of seal groove (14) and pack groove (143), pack groove (143) and follow the length direction setting of seal groove (14), pack pad (145) is equipped with in pack groove (143), the groove lateral wall of seal groove (14) is gone up and is slided and be connected with shrouding (144), shrouding (144) cover pack groove (143), be equipped with on the diapire of shrouding (144) and support tight spring (146), be equipped with on the tank bottom wall of seal groove (14) and support tight groove (147), support tight spring (146) and keep away from one end of shrouding (144) and stretch into and support in tight groove (147), the height that supports tight groove (147) is greater than the height of shrouding (144).

4. The high-sealability smoke-discharging fire-resisting valve according to claim 2, wherein: the valve (11) is made of metal materials, a magnet (15) is arranged in the valve body (1), and the magnet (15) and the valve (11) are arranged oppositely and are located below the valve (11).

5. The high-sealability smoke-discharging fire-resisting valve according to claim 2, wherein: the bottom wall of the sealing groove (14) is provided with a plurality of protrusions (142), and the side surface of the valve (11) is provided with a plurality of grooves (112) for the protrusions (142) to insert.

6. The high-sealability smoke-discharging fire-resisting valve according to claim 1, wherein: all be equipped with spout (13) that supply valve body (1) to slide on the relative both sides wall of valve body (1), spout (13) are followed the direction of height setting of valve (11).

7. The high-sealability smoke-discharging fire-resisting valve according to claim 6, wherein: the sliding groove (13) is filled with a sealing gasket (131), and the side face of the sealing gasket (131) is attached to the side face of the valve (11).

8. The high-sealability smoke-discharging fire-resisting valve according to claim 1, wherein: locating part (2) including articulate limiting plate (21) on valve body (1), the roof of limiting plate (21) with the diapire of valve (11) is inconsistent, be equipped with fusing metal post (22) on valve (11), fusing metal post (22) with the diapire of limiting plate (21) is inconsistent.