CN218761459U

CN218761459U - Fire-proof valve for tunnel fire-fighting ventilation

Info

Publication number: CN218761459U
Application number: CN202222827708.7U
Authority: CN
Inventors: 郑昌奇; 许琴; 方萌; 彭文健; 杨涛平
Original assignee: Wuhan Hanwei Liyuan Cooling And Heating Equipment Co ltd
Current assignee: Wuhan Hanwei Liyuan Cooling And Heating Equipment Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-28
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a fire prevention valve for tunnel fire control ventilation belongs to fire safety equipment technical field. The utility model provides a fire prevention valve for tunnel fire control ventilation, includes the valve body and rotates the blade that sets up in the valve body, still includes: the filter screen is fixedly arranged in the valve body, wherein a cleaning assembly is arranged in the valve body and is matched with the filter screen; the push rod is arranged on the valve body in a sliding mode, a groove is formed in the valve body, the push rod extends into the groove, a limiting block is fixedly arranged in the groove, and the limiting block is connected with the vent pipe flange; the utility model can intercept the dust entering the airflow of the fire damper by arranging the filter screens at the two sides of the blade, and prevent the dust from blocking the rotating shaft of the blade or adhering to the fusing metal; through the I-shaped that utilizes push rod, baffle and stop block to constitute fixes the valve body on the vent pipe flange, can realize quick installation and dismantlement, help improving the installation and pull down maintenance efficiency.

Description

Fire-proof valve for tunnel fire-fighting ventilation

Technical Field

The utility model relates to a fire safety equipment technical field especially relates to a fire prevention valve for tunnel fire control ventilation.

Background

The fire-proof valve is a valve form closed by using the action of gravity and spring mechanism, and is generally mounted on the pipeline of ventilation equipment, and is opened at ordinary times, and when the gas temperature in the pipeline is reached to a certain value (for example 70 deg.C) when fire disaster occurs, it can be automatically closed, and after closed, it can interrupt the circulation of smoke gas and prevent fire disaster from spreading.

Often will adopt equipment such as ventilation to ventilate the tunnel in the not good tunnel of some natural draft condition, in order to prevent when the conflagration breaing out that flame from stretching to other places by ventilation pipe, install the fire prevention valve on the ventilation pipe of isolation point department usually.

Among the prior art, when ventilating to the tunnel, some dusts can be inhaled in the air pipe, and these dusts can be piled up in the fire prevention valve, and the parcel is on blade or fusing metal, and when the conflagration breaing out, fusing metal probably can't in time fuse or the blade can't fold, brings some hidden dangers to tunnel fire control safety, overhauls or when installing the fire prevention valve in addition, need twist a plurality of bolts, and the operation is wasted time and energy, influences the installation, maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the dust can possibly make the unable timely fusing of fusing metal or the unable blade of foldings in the fire prevention valve when fire prevention valve and ventilation pipe intercommunication among the prior art, and the fire prevention valve who is used for tunnel fire control ventilation that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fire prevention valve for tunnel fire control ventilation, includes the valve body and rotates the blade that sets up in the valve body, still includes: the filter screen is fixedly arranged in the valve body, wherein a cleaning assembly is arranged in the valve body and is matched with the filter screen; the valve body is provided with a groove, the push rod extends into the groove and is fixedly provided with a limiting block, and the limiting block is connected with the vent pipe flange.

In order to reduce the dust and pile up on the filter screen, preferably, clean the subassembly including fixed the setting and be in pivot in the valve body, wherein, rotate in the pivot and be connected with the clearance board, the fixed brush that is provided with of one end that the pivot was kept away from to the clearance board, the brush offsets with the filter screen.

In order to enhance the effect of intercepting dust, the cleaning plate and the filter screen are respectively provided with two groups, and the two groups of the cleaning plate and the filter screen are respectively arranged on two sides of the blade.

In order to realize quick installation and dismantlement, preferably, the fixed baffle that is provided with in one end that the stopper was kept away from to the push rod, fixedly connected with knob on the baffle, be provided with reset assembly on the push rod.

In order to make the connection tighter, the reset assembly further comprises a spring, and two ends of the spring respectively abut against the valve body and the baffle.

Preferably, the top of the valve body is fixedly connected with a hook, a sliding groove is formed in the hook, and the sliding groove is attached to the vent pipe flange.

Furthermore, the hooks are provided with two groups, and the two groups of hooks are symmetrically arranged on the valve body.

In order to improve the sealing effect, preferably, sealing gaskets are arranged on two end faces of the valve body, and the sealing gaskets are made of ceramic fibers.

Compared with the prior art, the utility model provides a fire prevention valve for tunnel fire control ventilation possesses following beneficial effect:

1. the fire damper for tunnel fire-fighting ventilation can intercept dust entering the airflow of the fire damper by arranging the filter screens at the two sides of the blades to prevent the dust from blocking the rotating shaft of the blades, or the fuse metal is adhered to the fuse metal, and when a fire disaster occurs, the fuse metal can not be fused in time or blades can not be folded, so that some hidden dangers are brought to the fire safety of the tunnel;

2. according to the fire-proof valve for tunnel fire-fighting ventilation, the valve body is fixed on the ventilation pipe flange in an I shape formed by the push rod, the baffle and the limiting block, so that quick installation and disassembly can be realized, and the installation, disassembly and maintenance efficiency can be improved;

3. this a fire prevention valve for tunnel fire control ventilation cleans the subassembly through setting up on the filter screen, when the air current that flows through the valve body is undulant, cleans the subassembly and just cleans the action to the filter screen, can avoid the dust to plug up the filter screen, prevents to influence tunnel ventilation effect.

The part which is not involved in the device is the same as the prior art or can be realized by adopting the prior art, the utility model can intercept dust entering the airflow of the fire damper by arranging the filter screens at the two sides of the blade, so as to prevent the dust from blocking the rotating shaft of the blade or being adhered to the fusing metal, and when a fire disaster occurs, the fusing metal can not be fused in time or the blade can not be folded, thereby bringing some hidden dangers to the fire safety of the tunnel; through the I-shaped that utilizes push rod, baffle and stop block to constitute fixes the valve body on the vent pipe flange, can realize quick installation and dismantlement, help improving the installation and pull down maintenance efficiency.

Drawings

Fig. 1 is a front view of a fire damper for tunnel fire ventilation according to the present invention;

fig. 2 is a left side view of a fire damper for tunnel fire ventilation according to the present invention;

fig. 3 is a schematic structural view of a fire damper valve body for tunnel fire protection and ventilation according to the present invention;

fig. 4 is the utility model provides a structure schematic diagram of a fire prevention valve push rod for tunnel fire control ventilation.

In the figure: 1. a valve body; 101. a gasket; 102. a groove; 2. a blade; 3. hooking; 301. a chute; 4. a filter screen; 5. cleaning the plate; 501. a rotating shaft; 502. a brush; 6. a push rod; 601. a knob; 602. a limiting block; 603. a spring; 604. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, a fire prevention valve for tunnel fire control ventilation, includes valve body 1 and rotates blade 2 that sets up in valve body 1, still is provided with the control unit that is used for controlling blade 2 to close and open on the valve body 1, still includes: the filter screen 4 is fixedly arranged in the valve body 1, foreign matters such as dust brought by a ventilation pipe can be intercepted during use, the dust can be prevented from entering the valve body 1 to block a rotating shaft of the blade 2, or being adhered to fusing metal, when a fire disaster occurs, the fusing metal can not be fused in time or the blade 2 can not be folded, some hidden dangers are brought to tunnel fire fighting safety, the service life of the valve body 1 is prolonged, and the safety is improved, wherein a cleaning assembly is arranged in the valve body 1, when airflow flows through the cleaning assembly in a pipeline, the cleaning assembly can perform a cleaning action on the filter screen 4, the dust can be prevented from blocking the filter screen 4, and the tunnel ventilation effect is prevented from being influenced; the push rod 6 is arranged on the valve body 1 in a sliding mode, wherein the valve body 1 is provided with the groove 102, the push rod 6 extends into the groove 102 and is fixedly provided with the limiting block 602, the vent pipe flange is provided with a straight through hole corresponding to the limiting block 602, when the valve body 1 is installed, the flange on the valve body 1 is aligned with the flange on the vent pipe right back, the push rod 6 is pressed to enable the limiting block 602 to penetrate through the straight through hole formed in the vent pipe flange, then the push rod 6 is screwed to rotate for a certain angle, the limiting block 602 can be clamped on the vent pipe flange, at the moment, the vent pipe flange is tightly attached to the flange of the valve body 1 to achieve sealing, when the valve body 1 needs to be dismounted and overhauled, the push rod 6 is screwed to enable the limiting block 602 to be just overlapped with the straight through hole formed in the vent pipe flange, then the push rod 6 is pulled to enable the limiting block 602 to be separated from the through hole in the flange, dismounting can be finished, by utilizing the push rod 6 and the limiting block 602, when the fixing effect is possessed, quick mounting and dismounting can be realized, and the mounting and dismounting overhauling efficiency can be improved.

Clean the subassembly including fixed pivot 501 that sets up in valve body 1, wherein, it is connected with clearance board 5 to rotate in the pivot 501, the fixed brush 502 that is provided with of one end that pivot 501 was kept away from to clearance board 5, brush 502 adopts high temperature resistant steel wire ball or high temperature resistant rubber to make, brush 502 offsets with filter screen 4, clearance board 5 and filter screen 4 all are provided with two sets ofly, two sets of clearance board 5 and filter screen 4 set up the both sides at blade 2 respectively, 2 both sides at the blade set up filter screen 4 simultaneously, also can have the effect of interception dust when the wind direction is unset, help improving the safeguard effect, when using, when wind current flows through clearance board 5 in the pipeline, clearance board 5 can be blown, when the unsteady existence of wind current is undulant, clearance board 5 can be round pivot 501 luffing motion, at this moment, brush 502 on clearance board 5 will clean filter screen 4, reduce piling up of dust on filter screen 4.

The fixed baffle 604 that is provided with of one end that stopper 602 was kept away from to push rod 6, fixedly connected with knob 601 on the baffle 604 is provided with the subassembly that resets on the push rod 6, and the subassembly that resets can adopt flexible gasbag or cylinder etc. to reset, and the subassembly that resets here sets up to according to the application: spring 603, the spring 603 both ends offset with valve body 1 and baffle 604 respectively, when the installation, with flange on the valve body 1 to just in time the back with the flange on the ventilation pipe, hold between the fingers knob 601 and promote push rod 6, make stopper 602 pass the in-line through-hole of seting up on the ventilation pipe flange, then twist knob 601 and rotate certain angle, loosen knob 601, stopper 602 will block on the ventilation pipe flange under the effect of spring 603, the ventilation pipe flange closely laminates with valve body 1 flange this moment, realize sealed, when needs are torn down valve body 1 and are overhauld, reverse operation makes stopper 602 break away from in the through-hole on the ventilation pipe flange and can accomplish and dismantle.

The top fixedly connected with couple 3 of valve body 1, be provided with the fillet on couple 3, can detain couple 3 and shift when the transport, convenient transport shifts, spout 301 has been seted up on couple 3, spout 301 closely laminates with the ventilation pipe flange, be provided with two sets ofly on

couple

3, and 3 symmetries of two sets of couples set up on valve body 1, when using, place couple 3 on valve body 1 respectively at ventilation pipe flange top surface, then detain spout 301 at ventilation pipe flange top surface, slowly push away valve body 1, make the flange on the valve body 1 align with the ventilation pipe flange, through set up couple 3 on valve body 1, can carry out operation on next step after detaining corresponding ventilation pipe flange with couple 3 on valve body 1 when the installation, time saving and labor saving can improve the installation effectiveness, it only can accomplish the installation to need two people to mutually support valve body 1 when installing valve body 1 among the prior art, another person is fixed with the bolt, it is harder to install, be unfavorable for improving the installation effectiveness.

All be provided with sealed 101 on the 1 both ends face of valve body, sealed 101 material of filling up is ceramic fiber, ceramic fiber is fibrous light refractory material, light in weight has, high temperature resistant, the thermostability is good, the heat conductivity is low, advantages such as specific heat is little and resistant mechanical shock, and the wide use is in high temperature pipeline junction, when using, 1 both ends face of valve body laminates with the ventilation pipe flange face respectively, through set up sealed 101 between 1 terminal surface of valve body and ventilation pipe flange face, can strengthen the sealed effect of 1 and pipeline junction of valve body, help improving the protection effect of valve body 1.

The utility model discloses in, when using, at first place couple 3 on the valve body 1 respectively at ventilation pipe flange top surface, then detain spout 301 at ventilation pipe flange top surface, slowly promote valve body 1, make flange on the valve body 1 relative well with the ventilation pipe flange, adjust well the completion back, hold between the fingers knob 601 and promote push rod 6, make the in-line through-hole of seting up on stopper 602 passes the ventilation pipe flange, then twist knob 601 and rotate certain angle, loosen knob 601, stopper 602 will block on the ventilation pipe flange under the effect of spring 603, the ventilation pipe flange closely laminates with valve body 1 flange this moment, realize sealedly, when needs pull down maintenance with valve body 1, reverse operation makes stopper 602 break away from in the through-hole on the ventilation pipe flange and can accomplish the dismantlement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a fire prevention valve for tunnel fire control ventilation, includes valve body (1) and rotates blade (2) of setting in valve body (1), its characterized in that still includes:

a filter screen (4) fixedly arranged in the valve body (1),

wherein, a cleaning component is arranged in the valve body (1), and the cleaning component is matched with the filter screen (4);

a push rod (6) arranged on the valve body (1) in a sliding way,

the valve body (1) is provided with a groove (102), the push rod (6) extends into the groove (102) and is fixedly provided with a limiting block (602), and the limiting block (602) is connected with the vent pipe flange.

2. The fire damper for fire protection and ventilation in tunnels of claim 1, wherein the sweeping assembly comprises

A rotating shaft (501) fixedly arranged in the valve body (1),

wherein, the rotating shaft (501) is connected with a cleaning plate (5) in a rotating manner, one end of the cleaning plate (5) far away from the rotating shaft (501) is fixedly provided with a brush (502), and the brush (502) is abutted against the filter screen (4).

3. Fire damper for tunnel fire protection and ventilation according to claim 2, characterized in that said cleaning plates (5) and said filtering screens (4) are provided in two groups, said two groups of cleaning plates (5) and filtering screens (4) being provided on both sides of the blade (2), respectively.

4. The fire damper for tunnel fire protection and ventilation according to claim 1, wherein a baffle (604) is fixedly arranged at one end of the push rod (6) far away from the limiting block (602), a knob (601) is fixedly connected to the baffle (604), and a reset assembly is arranged on the push rod (6).

5. A fire damper for fire protection and ventilation in tunnels according to claim 4, characterized in that the return assembly comprises a spring (603), both ends of the spring (603) respectively abut against the valve body (1) and the baffle (604).

6. The fire damper for tunnel fire protection and ventilation according to claim 1, wherein a hook (3) is fixedly connected to the top of the valve body (1), a sliding groove (301) is formed in the hook (3), and the sliding groove (301) is attached to a ventilation pipe flange.

7. Fire damper for tunnel fire protection and ventilation according to claim 6, characterized in that two sets of hooks (3) are provided, and two sets of hooks (3) are symmetrically provided on the valve body (1).

8. The fire damper for tunnel fire fighting and ventilation according to claim 1, characterized in that sealing gaskets (101) are arranged on both end faces of the valve body (1), and the sealing gaskets (101) are made of ceramic fibers.