CN219815119U

CN219815119U - Fire-fighting ventilation pipeline

Info

Publication number: CN219815119U
Application number: CN202321314794.XU
Authority: CN
Inventors: 彭建华
Original assignee: Shenzhen Zhonggang Construction Engineering Co ltd
Current assignee: Shenzhen Zhonggang Construction Engineering Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-10-13
Anticipated expiration: 2033-05-26

Abstract

The utility model relates to a fire-fighting ventilation pipeline which comprises an air pipe, a cooling box communicated with one end of the air pipe, a fan communicated with one side of the cooling box away from the air pipe, and an exhaust pipe communicated with the fan, wherein a water spraying pipe is arranged on the inner top wall of the cooling box, a plurality of atomizing spray heads are communicated with the water spraying pipe, a water pipe penetrates through the top wall of the cooling box and is communicated with a water source, a first electromagnetic valve is arranged on the water pipe and is used for controlling the water pipe to be communicated with or sealed with the water spraying pipe, a temperature sensor is arranged in the cooling box, when the temperature sensed by the temperature sensor reaches a preset temperature, the first electromagnetic valve is opened to enable the water pipe to be communicated with the water spraying pipe, and when the temperature sensed by the temperature sensor does not reach the preset temperature, the first electromagnetic valve is closed to enable the water pipe to be sealed with the water spraying pipe. The utility model has the effect of … ….

Description

Fire-fighting ventilation pipeline

Technical Field

The utility model relates to the field of fire-fighting pipelines, in particular to a fire-fighting ventilating pipeline.

Background

The fire-fighting ventilation pipeline is a pipeline system which is arranged in a building and used for discharging fire smoke and introducing fresh air, is an important component part in a building fire-fighting system, can discharge harmful gases such as smoke, hot gas and the like outdoors when a fire disaster occurs, and ensures the safe evacuation of personnel and the effective implementation of fire rescue.

The fire-fighting ventilation pipeline mainly comprises a fan, an air pipe and a smoke outlet, wherein the fan is used for generating power for smoke discharging and air supplying, the air pipe is used for conveying air flow generated by the fan to a pipeline at a designated position, and then harmful gases such as smoke, hot air and the like are discharged outdoors through the smoke outlet.

However, when a fire disaster occurs, the temperature of the generated smoke and hot air is very high, and the fan is easy to damage due to high temperature in the smoke and hot air discharging process, so that the smoke and hot air cannot be discharged in time to influence rescue.

Disclosure of Invention

The utility model provides a fire-fighting ventilation pipeline, which aims to solve the problem that a fan is easy to damage due to high temperature when smoke and hot air are exhausted from the fire-fighting ventilation pipeline.

The utility model provides a fire-fighting ventilation pipeline which adopts the following technical scheme:

the utility model provides a fire control air pipe, includes the tuber pipe, communicate in cooling box of one of them end of tuber pipe, communicate in cooling box keep away from the fan of one side of tuber pipe, communicate in the exhaust pipe of fan, be provided with the spray pipe on the interior roof of cooling box, the intercommunication has a plurality of atomizer on the spray pipe, the intercommunication has the raceway on the spray pipe, the raceway passes the roof of cooling box and communicates there is the water source, be provided with first solenoid valve on the raceway, first solenoid valve is used for controlling raceway and spray pipe and realizes the intercommunication or seal, be provided with temperature sensor in the cooling box, works as when temperature sensor response's temperature reaches the temperature of predetermineeing, first solenoid valve is opened and is made raceway and spray pipe intercommunication, works as when temperature sensor response's temperature does not reach the temperature of predetermineeing, first solenoid valve closes and makes raceway and spray pipe seal.

Through adopting above-mentioned technical scheme, at the in-process of smoke and steam exhausting, when temperature sensor response cooling incasement temperature reaches the temperature of predetermineeing, first solenoid valve can be opened and make raceway and spray pipe intercommunication, and atomizer can be to cooling incasement water spray, carries out continuous cooling to smoke and steam to realize protecting the fan, reduced the fan because of the possibility that high temperature damaged, can normally operate with continuous smoke and steam exhaust when guaranteeing that the conflagration takes place.

Preferably, a support is arranged in the cooling box, a plurality of fan blades are rotatably arranged on the support, the fan blades can rotate under the action of air flow generated during the operation of the fan, and the atomizing nozzle faces the fan blades.

Through adopting above-mentioned technical scheme, at the in-process of smog and steam of arranging, the air current can make the flabellum rotate, and atomizer has partial water to spout to the flabellum when the water spray, and the flabellum can play the effect of filler, increases the contact time of water and smog and steam so that water and smog and steam contact more fully, is favorable to improving the cooling effect.

Preferably, the fan blade is made of polytetrafluoroethylene.

Through adopting above-mentioned technical scheme, polytetrafluoroethylene material's flabellum can adapt to the high temperature, the corrosiveness of smog and steam that the conflagration produced better, long service life.

Preferably, the cooling box is kept away from the one side intercommunication of tuber pipe and is had the buffer tube, the buffer tube sets up along the orientation tilt up that keeps away from the cooling box, the fan communicates in the buffer tube one end that keeps away from the cooling box.

Through adopting above-mentioned technical scheme, the setting of buffer tube can play the barrier effect to the small amount of moisture that carries in smog and the steam, reduces the content of water in exhaust smog and the steam.

Preferably, the horizontal height of the bottom wall of the cooling box is lower than the lowest horizontal height of the communication part of the air pipe and the cooling box.

Through adopting above-mentioned technical scheme, can avoid falling into the rivers tuber pipe of cooling tank bottom.

Preferably, the bottom of the cooling box is communicated with a drain pipe.

By adopting the technical scheme, the blow-off pipe is used for discharging water in the cooling box.

Preferably, a liquid level sensor is arranged on the inner wall of the cooling box, the horizontal height of the liquid level sensor is lower than the lowest horizontal height of the communication part of the air pipe and the cooling box, a second electromagnetic valve is arranged on the drain pipe and used for controlling the drain pipe to be communicated or closed with the outside, when the liquid level sensor senses the liquid level, the second electromagnetic valve is opened to enable the drain pipe to be in a communicating state, and when the liquid level sensor does not sense the liquid level, the second electromagnetic valve is closed to enable the drain pipe to be in a closing state.

Through adopting above-mentioned technical scheme, at the in-process of discharge smog and steam, when the water yield that holds up in the cooling case can't reach level sensor's response height, the cooling case can't be through blow off pipe and external intercommunication to avoided smog and steam to escape through the blow off pipe, and when the second solenoid valve is opened and is made the blow off pipe be in the intercommunication state, the cooling incasement must be that there is certain water yield, and the water of holding up also can prevent smog and steam escape through the blow off pipe.

Preferably, the bottom wall of the cooling box is gradually contracted downwards from the edge to the center.

By adopting the technical scheme, the water in the cooling box is easier to discharge cleanly.

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

1. through setting up the temperature in the temperature sensor response cooling case, when the temperature reaches preset temperature, first solenoid valve can be opened and make raceway and spray pipe intercommunication, and atomizer can be to cooling incasement water spray, carries out continuous cooling to smog and steam to realize protecting the fan, reduced the fan because of the possibility that high temperature damaged, the fan can normal operating be with smog and steam exhaust constantly when guaranteeing that the conflagration takes place.

2. The fan blade arranged in the cooling box can play a role of filling, so that the contact time of water, smoke and hot air is increased to enable the water, the smoke and the hot air to be in full contact, and the cooling effect is improved.

3. The drain pipe is used for discharging water generated by cooling, and the second electromagnetic valve is matched with the liquid level sensor to prevent smoke and hot air from escaping.

Drawings

FIG. 1 is a schematic view of a fire ventilation duct according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a fire ventilation duct according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a second view of a fire passage conduit according to an embodiment of the present utility model.

Reference numerals illustrate: 1. an air duct; 2. a cooling box; 21. a water spray pipe; 22. an atomizing nozzle; 23. a water pipe; 231. a first electromagnetic valve; 24. a bracket; 25. a fan blade; 26. a blow-down pipe; 261. a second electromagnetic valve; 27. a temperature sensor; 28. a liquid level sensor; 3. a buffer tube; 4. a blower; 5. and an exhaust pipe.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The present utility model will be described in further detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a fire-fighting ventilation pipeline. Referring to fig. 1, the fire-fighting ventilation pipeline comprises an air pipe 1, a cooling box 2 communicated with one end of the air pipe 1, a buffer tube 3 communicated with one side, far away from the air pipe 1, of the cooling box 2, a fan 4 communicated with one end, far away from the cooling box 2, of the buffer tube 3, and an exhaust pipe 5 communicated with the fan 4, wherein when the fan 4 operates, air flows sequentially passing through the air pipe 1, the cooling box 2, the buffer tube 3, the fan 4 and the exhaust pipe 5 can be formed.

The cooling box 2 is whole to be the cuboid shape, and buffer tube 3 sets up along being close to the direction of fan 4 and incline upwards gradually, and the level of tuber pipe 1 and cooling box 2 intercommunication department and the level of buffer tube 3 and cooling box 2 intercommunication department all are higher than the level of cooling box 2 diapire.

The horizontal fixed mounting has spray pipe 21 on the interior roof of cooling box 2, and the length direction of spray pipe 21 is perpendicular with the flow direction of air current, evenly installs a plurality of atomizer 22 on the spray pipe 21 at the interval. The water pipe 23 is vertically communicated with the water spraying pipe 21, the water pipe 23 penetrates through the top wall of the cooling box 2 and is communicated with a water source, the fire-fighting spraying system can be used as the water source when the water spraying pipe is applied, the water pipe 23 is communicated with the fire-fighting spraying system, and other water sources can be outside.

The water pipe 23 is provided with a first electromagnetic valve 231, the first electromagnetic valve 231 is used for controlling the water pipe 23 to be communicated with or sealed with the water spray pipe 21, and the cooling box 2 is internally provided with a temperature sensor 27.

When the fan 4 is used, the first electromagnetic valve 231 and the temperature sensor 27 can be electrically connected to a fire control system for control, and the preset working temperature of the temperature sensor 27 is set according to the temperature resistance of the fan 4. When the fire disaster happens, in the process of discharging smoke and hot air, when the temperature sensor 27 senses that the temperature in the cooling box 2 reaches the preset temperature, the temperature sensor 27 sends a signal to the fire control system, the fire control system can control the first electromagnetic valve 231 to be opened so that the water pipe 23 is communicated with the water spraying pipe 21, at the moment, the atomizing nozzle 22 sprays water into the cooling box 2 to cool the smoke and the hot air, so that the heat carried by the smoke and the hot air when passing through the fan 4 is greatly reduced, and the possibility that the fan 4 is damaged due to high temperature is reduced. The buffer tube 3 that the slope set up can play the barrier to the small amount of moisture that carries in smog and the steam, reduces the content of water in exhaust smog and the steam.

When the temperature in the cooling tank 2 reaches the preset temperature, the first electromagnetic valve 231 is in a closed state so as to keep the water delivery pipe 23 and the water spraying pipe 21 closed.

The bottom of the cooling tank 2 is vertically communicated with a drain pipe 26 for discharging water in the cooling tank 2. The bottom wall of the cooling box 2 is gradually contracted downwards from the edge to the center to form a funnel shape so as to ensure that water in the cooling box 2 is discharged cleanly.

The inner wall of the cooling box 2 is also provided with a liquid level sensor 28, the horizontal height of the installation position of the liquid level sensor 28 is lower than the lowest horizontal height of the communication position of the air pipe 1 and the cooling box 2, the sewage drain pipe 26 is provided with a second electromagnetic valve 261, and the second electromagnetic valve 261 is used for controlling the sewage drain pipe 26 to be communicated or sealed with the outside. During application, the first electromagnetic valve 231 and the temperature sensor 27 can be electrically connected to the fire control system for control, and when the liquid level sensor 28 does not sense the liquid level, the second electromagnetic valve 261 is in a closed state so that the drain pipe 26 is kept closed, the cooling box 2 cannot be communicated with the outside through the drain pipe 26, and smoke and hot air are prevented from escaping through the drain pipe 26. When the smoke and the hot gas are sprayed and cooled, when the liquid level of the water stored in the cooling box 2 reaches the height of the liquid level sensor 28, the liquid level sensor 28 sends a signal to a fire-fighting system, the fire-fighting control system controls the second electromagnetic valve 261 to be opened so that the sewage drain 26 is in a communicating state, and at the moment, the cooling box 2 can be communicated with the outside through the sewage drain 26, so that water is discharged, but at the moment, a certain amount of water is necessarily present in the cooling box 2, and the stored water can also prevent the smoke and the hot gas from escaping through the sewage drain 26.

The cooling box 2 is internally and fixedly provided with a bracket 24, the bracket 24 is provided with a plurality of fan blades 25, the fan blades 25 are rotationally connected with the bracket 24 through bearings, the fan blades 25 face the flowing direction of air flow, and the fan blades 25 can rotate under the action of the air flow generated during the running of the fan 4. The atomizer 22 is located between the fan blade 25 and the buffer tube 3, and the atomizer 22 faces the fan blade 25.

In the process of smoke and hot gas discharge, the fan blades 25 can be rotated by air flow, part of water is sprayed onto the fan blades 25 when the atomizing nozzle 22 sprays water, the fan blades 25 can play a role of filling, the contact time of the water, the smoke and the hot gas is prolonged so that the water, the smoke and the hot gas are more fully contacted, and the cooling effect is improved.

Because the smoke and the hot air generated by the fire disaster carry high temperature and have corrosiveness, in order to prolong the service life of the fan blade 25, the fan blade 25 is made of polytetrafluoroethylene materials.

The implementation principle of the fire-fighting ventilation pipeline provided by the embodiment of the utility model is as follows: at the in-process of smoke and steam discharging, through the temperature in the temperature sensor 27 response cooling case 2, when the temperature in the cooling case 2 reaches the default temperature, first solenoid valve 231 can be opened and make raceway 23 and spray pipe 21 intercommunication, atomizer 22 can be to cooling case 2 in water spray, continuously cool down smoke and steam to realize protecting fan 4, reduced fan 4 because of the possibility of high temperature damage, fan 4 can normal operating in order to constantly discharge smoke and steam when guaranteeing the conflagration and take place.

The above is a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A fire ventilation duct, characterized in that: including tuber pipe (1), communicate in cooling box (2) of tuber pipe (1) wherein one end, communicate in cooling box (2) keep away from fan (4) of one side of tuber pipe (1), communicate in exhaust pipe (5) of fan (4), be provided with spray pipe (21) on the interior roof of cooling box (2), the intercommunication has a plurality of atomizer (22) on spray pipe (21), the intercommunication has raceway (23) on spray pipe (21), raceway (23) pass the roof of cooling box (2) and communicate there is the water source, be provided with first solenoid valve (231) on raceway (23), first solenoid valve (231) are used for controlling raceway (23) and spray pipe (21) to realize the intercommunication or seal, be provided with temperature sensor (27) in cooling box (2), when the temperature of temperature sensor (27) response reaches and predetermine the temperature, first solenoid valve (231) open messenger's raceway (23) and spray pipe (21) intercommunication, when temperature sensor (27) are predetermine the temperature that temperature sensor (27) do not reach, first solenoid valve (231) closes.

2. A fire ventilation duct according to claim 1, characterized in that: be provided with support (24) in cooling case (2), rotate on support (24) and install a plurality of flabellums (25), flabellum (25) can rotate under the effect of the air current that produces when fan (4) are operated, atomizer (22) are towards flabellum (25).

3. A fire ventilation duct according to claim 2, characterized in that: the fan blades (25) are made of polytetrafluoroethylene.

4. A fire ventilation duct according to claim 1, characterized in that: the cooling box (2) is kept away from one side intercommunication that tuber pipe (1) has buffer tube (3), buffer tube (3) are along the orientation tilt up setting of keeping away from cooling box (2), fan (4) intercommunication keep away from the one end of cooling box (2) in buffer tube (3).

5. A fire ventilation duct according to claim 1, characterized in that: the horizontal height of the bottom wall of the cooling box (2) is lower than the lowest horizontal height of the communication part of the air pipe (1) and the cooling box (2).

6. A fire ventilation duct according to claim 1, characterized in that: the bottom of the cooling box (2) is communicated with a blow-down pipe (26).

7. A fire ventilation duct according to claim 6, characterized in that: be provided with liquid level sensor (28) on the inner wall of cooling case (2), the level of liquid level sensor (28) is less than the minimum level of tuber pipe (1) and cooling case (2) intercommunication department, be provided with second solenoid valve (261) on blow off pipe (26), second solenoid valve (261) are used for controlling blow off pipe (26) and external intercommunication or seal, works as when liquid level sensor (28) sensed the liquid level, second solenoid valve (261) are opened and are made blow off pipe (26) be in the intercommunication state, works as when liquid level sensor (28) do not sense the liquid level, second solenoid valve (261) are closed and make blow off pipe (26) be in the closed state.

8. A fire ventilation duct according to claim 6, characterized in that: the bottom wall of the cooling box (2) is gradually contracted downwards from the edge to the center.