CN211622436U - Fireproof ventilation structure of pipe shaft - Google Patents
Fireproof ventilation structure of pipe shaft Download PDFInfo
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- CN211622436U CN211622436U CN201921781098.3U CN201921781098U CN211622436U CN 211622436 U CN211622436 U CN 211622436U CN 201921781098 U CN201921781098 U CN 201921781098U CN 211622436 U CN211622436 U CN 211622436U
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Abstract
The utility model relates to a piping shaft fire prevention ventilation structure belongs to the technical field of piping shaft, this internal gas pipeline at the piping shaft including the piping shaft body of vertical setting in the building and setting, this internal vertical a plurality of fire-resistant baffles that are provided with of piping shaft, be provided with ventilation mechanism between the fire-resistant baffle, be provided with the vertical water-cooling tube of axis between the fire-resistant baffle, the quantity of water-cooling tube is two and the symmetry sets up the both sides at the gas pipeline, the both ends of water-cooling tube all are provided with stop valve, the water-cooling tube has water pump and water supply through pipeline order connection. When a fire occurs, the water in the water cooling pipe can absorb heat and reduce the temperature around the gas pipeline, the gas pipeline is prevented from re-burning and re-explosion due to high temperature, the replacement of the cooling water in the water cooling pipe is controlled through the stop valve and the water pump, and the fireproof safety is good.
Description
Technical Field
The utility model belongs to the technical field of the technique of pipe-line well and specifically relates to a pipe-line well fire prevention ventilation structure is related to.
Background
The piping shaft is used for arranging the vertical equipment pipeline in the building, and the fireproof structure is indispensable for the piping shaft arranged with the gas pipeline.
The utility model discloses a fire prevention ventilation structure of super high-rise building gas pipeline well is disclosed in the utility model patent document that current grant bulletin number is CN205382679U, including setting up the special tube well of gas pipeline in super high-rise building and establishing the gas pipeline in the special tube well of gas pipeline, the special tube well of gas pipeline divide into the multistage, keeps apart each other through a fire-resistant partition between the adjacent section, is equipped with the bottom side vent in every section bottom, and the bottom side vent is equipped with electronic fire prevention valve, and every section top is equipped with the air outlet, and the air outlet is equipped with centrifugal fan. A plurality of second fire-resistant partition plates are arranged in each section of the special gas pipeline well, holes are formed in the second fire-resistant partition plates, and fire valves are arranged at the holes. When the fire occurs, fire can be prevented by closing the fire-proof valve and the electric fire-proof valve, and the chimney effect is prevented.
The above prior art solutions have the following drawbacks: if fire and natural gas leakage happen simultaneously, the fire can be blocked by closing the fire damper and the electric fire damper. However, the fire-resistant heat-insulating plates still form a high-temperature area with fire, and the high temperature is easy to cause re-combustion and re-explosion for a gas pipeline and still unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a piping shaft fire prevention ventilation structure can cool down the pipeline in the piping shaft when taking place the condition of a fire, prevents that the pipeline that transport medium is materials such as natural gas from burning again and exploding again.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a piping shaft fire prevention ventilation structure, includes vertical setting at the piping shaft body in the building and sets up at this internal gas pipeline of piping shaft, this internal vertical a plurality of fire-resistant baffles that are provided with of piping shaft, be provided with ventilation mechanism between the fire-resistant baffle, be provided with the vertical water-cooling tube of axis between the fire-resistant baffle, the quantity of water-cooling tube is two and the symmetry sets up the both sides at gas pipeline, the both ends of water-cooling tube all are provided with stop valve, the water-cooling tube has water pump and water supply through pipeline sequence connection.
By adopting the technical scheme, when a fire occurs, the water in the water cooling pipe can absorb heat and reduce the temperature around the gas pipeline, the gas pipeline is prevented from re-burning and re-explosion due to high temperature, the replacement of the cooling water in the water cooling pipe is controlled by the stop valve and the water pump, and the fireproof safety is good.
The utility model discloses further set up to: the water-cooling pipe comprises connecting parts and cooling parts which are arranged in a staggered mode, wherein the cooling parts are arranged between the adjacent refractory partition plates, and the diameters of the cooling parts are larger than those of the connecting parts.
Through adopting above-mentioned technical scheme, the outer circumference area of cooling portion is bigger, area of contact when can improving the heat exchange, and cooling efficiency is higher.
The utility model discloses further set up to: and a temperature sensor is fixed in the water cooling pipe, and is simultaneously electrically connected with the stop valve and the controller of the water pump.
Through adopting above-mentioned technical scheme, when temperature sensor detected the water in the water-cooling pipe and has risen to can't absorb the heat again, stop valve opened because of receiving temperature sensor's signal, and the water pump is worked because of receiving temperature sensor's signal, and the water in the water-cooling pipe is changed, and automatic change cooling water, it is more convenient to use.
The utility model discloses further set up to: the outside of the gas pipeline is coated with a heat radiation heat dissipation coating.
Through adopting above-mentioned technical scheme, the thermal radiation heat-sinking capability that the gas pipeline can be strengthened to the thermal radiation heat dissipation coating for the heat of gas pipeline periphery is more easily diffused and is taken away, and the cooling effect is better.
The utility model discloses further set up to: the ventilation mechanism is including setting up a plurality of pairs of air intake and air outlet on the pipe shaft body, and is every right air intake and air outlet all set up between the fire-resistant baffle that corresponds, air intake department is fixed with the fire prevention valve, air outlet department is fixed with the air exhauster.
Through adopting above-mentioned technical scheme, this piping shaft passes through air exhauster and air intake realization segmentation ventilation under the normality, and the fire prevention valve is closed and is blocked the condition of a fire when the condition of a fire takes place, divides into a plurality of regions in the piping shaft and is difficult to form the chimney effect, and the back-fire relief is effectual.
The utility model discloses further set up to: and a carbon dioxide nozzle is arranged between the fire-resistant partition plates and is sequentially connected with a control valve, a carbon dioxide gas cylinder, a driving pump and a carbon dioxide system controller.
Through adopting above-mentioned technical scheme, when the condition of a fire was too serious, user's accessible carbon dioxide system controller control flap and actuating pump collaborative work, the carbon dioxide in the carbon dioxide gas cylinder spouts from the carbon dioxide shower nozzle, realizes putting out a fire in advance, further suppresses the condition of a fire and reduces the damage.
The utility model discloses further set up to: and a natural gas sensor is fixed on the gas pipeline, and the carbon dioxide system controller is simultaneously electrically connected with the temperature sensor and the natural gas sensor.
By adopting the technical scheme, when the natural gas sensor detects that the natural gas leaks and the temperature of the water in the water cooling pipe rises too fast, the carbon dioxide system controller receives a signal and automatically starts the carbon dioxide fire extinguishing work, so that the fire is suppressed more timely.
The utility model discloses further set up to: and a heat insulation coating layer is coated on the inner wall of the pipe shaft body.
Through adopting above-mentioned technical scheme, thermal-insulated dope layer can reduce the pipeline well body and receive high temperature to influence and the possibility that collapses, and fire safety nature is better.
To sum up, the utility model discloses a beneficial technological effect does:
1. water cooling pipes are arranged around the gas pipeline in the pipeline well to provide a cooling function, so that even if a fire occurs and the gas pipeline leaks natural gas, the gas pipeline is not easy to re-ignite and re-explode, and the fire safety is good;
2. when the fire condition is further worsened, the carbon dioxide fire extinguishing function is realized, and the damage caused by the fire condition is small.
Drawings
FIG. 1 is a cross-sectional view of an internal structure of a body of a piping well according to an embodiment.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.
In the figure, 1, a pipe well body; 11. a refractory partition; 12. an air inlet; 121. a fire damper; 13. an air outlet; 131. an exhaust fan; 14. a heat insulating coating layer; 2. a gas pipeline; 21. a heat radiation heat-dissipating coating; 3. a water-cooled tube; 31. a connecting portion; 32. a cooling section; 41. a stop valve; 42. a water pump; 43. a temperature sensor; 5. a carbon dioxide showerhead; 51. a control valve; 52. driving the pump; 53. a carbon dioxide cylinder; 54. a carbon dioxide system controller; 55. a natural gas sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-3.
Referring to fig. 1, for the utility model discloses a piping shaft fire prevention ventilation structure, including vertical piping shaft body 1 and the gas pipeline 2 of vertical setting in piping shaft body 1 of setting in the building, gas pipeline 2 carries the natural gas. The fire-resistant partition plate 11 which divides the interior of the pipe shaft body 1 into a plurality of sections is vertically arranged in the pipe shaft body 1, and the fire-resistant partition plate 11 is usually a magnesium crystal plate with the thickness of 12mm or more and can endure the combustion for three hours or more. Be provided with ventilation mechanism and water-cooled tube 3 between the fire-resistant baffle 11, the axis of water-cooled tube 3 is vertical and vertical to running through a plurality of fire-resistant baffles 11. The quantity of water-cooling tube 3 is two and the symmetry sets up in the both sides of gas pipeline 2, and the both ends of water-cooling tube 3 all are provided with stop valve 41, and water pump 42 and water supply source are connected with through the pipeline in proper order to the bottom of water-cooling tube 3.
When the fire takes place, fire barrier 11 restricts the fire between fire barrier 11, and the water absorption heat energy in the water-cooled tube 3 is too high with the temperature of avoiding between fire barrier 11 region, effectively reduces gas pipeline 2 because of the high temperature possibility of after-combustion after-explosion, and the fire safety is higher. After the cooling water is heated, a user opens the two stop valves 41 and performs water change work in the water cooling pipe 3 by driving of the water pump 42, so that the cooling is convenient and the cooling effect is good.
Referring to fig. 1, in order to increase cooling efficiency, the water cooling tubes 3 include connecting portions 31 and cooling portions 32 which are vertically staggered. The cooling portion 32 and the connecting portion 31 have different diameters and are arranged so that the axes thereof overlap, and the cooling portion 32 is arranged between the adjacent refractory partition plates 11 and has a diameter larger than that of the connecting portion 31. The area of the outer circumferential surface of the cooling portion 32 is larger than that of the outer circumferential surface of the connecting portion 31, and the heat exchange area is larger. The heat radiation heat dissipation coating 21 made of materials such as nano carbon is coated outside the gas pipeline 2, the gas pipeline 2 has stronger heat dissipation capacity through heat radiation, and air in the pipe well body 1 can take away heat and transmit the heat to cooling water in the water cooling pipe 3 conveniently. The cooling effect is better, and the fire prevention security is higher.
Referring to fig. 3, in order to facilitate the user to replace the cooling water that cannot absorb heat any more, a temperature sensor 43 is fixed in the water cooling tube 3, and the temperature sensor 43 is electrically connected to both the stop valve 41 and the water pump 42. When the cooling water in the water-cooling pipe 3 absorbs a large amount of heat, the temperature sensor 43 sends a signal to the controller of the stop valve 41 and the water pump 42, the stop valve 41 and the water pump 42 are opened, and the cooling water in the water-cooling pipe 3 is replaced. When the temperature is reduced to a designated value, the cooling water is replaced, the stop valve 41 is closed, the water pump 42 stops working, the control is convenient, and the cooling effect is good.
Referring to fig. 1 and 2, in order to further suppress a fire, a carbon dioxide nozzle 5 is provided between the fire-resistant partitions 11, and a control valve 51, a carbon dioxide gas cylinder 53, a driving pump 52, and a carbon dioxide system controller 54 are sequentially connected to the carbon dioxide nozzle 5. Referring to fig. 3, a natural gas sensor 55 is fixed to the gas pipeline 2, and the carbon dioxide system controller 54 is electrically connected to both the temperature sensor 43 and the natural gas sensor 55. When the natural gas sensor 55 detects that the natural gas leaks and the fire condition is serious and the temperature of the water in the water cooling pipe 3 is continuously increased too fast, the carbon dioxide system controller 54 is started, the control valve 51 is opened, the drive pump 52 works, the carbon dioxide is sprayed out from the corresponding carbon dioxide spray heads 5, the fire extinguishing work is carried out on the area between the fire-resistant partition plates 11, the fire condition is further inhibited, and the fire safety is higher.
Referring to fig. 1, the ventilation mechanism includes a plurality of pairs of air inlets 12 and air outlets 13 disposed on the pipe shaft body 1, each pair of air inlet 12 and air outlet 13 is disposed between corresponding fire-resistant partition plates 11, the air inlet 12 is disposed near the interior of the building, and the air outlet 13 is disposed near the exterior of the building. An electric fire damper 121 is fixed at the air inlet 12, and a centrifugal exhaust fan 131 is fixed at the air outlet 13. The fire damper 121 is opened in a normal state, the exhaust fan 131 works, air convection can be formed at the air inlet 12 and the air outlet 13, and indoor and outdoor air exchange is formed, so that the ventilation effect is good. When a fire occurs, the fire-proof valve 121 is closed, the exhaust fan 131 stops working, and a chamber for limiting fire spreading is formed by matching with the fire-proof partition plate 11, so that the probability of chimney effect occurrence is low.
Referring to fig. 1, in order to prolong the service life of the pipe shaft body 1, an epoxy type heat insulation coating layer 14 is coated on the inner wall of the pipe shaft body 1, and the heat insulation coating layer 14 can reduce the efficiency of heat conduction, reduce the possibility that components such as cement in the pipe shaft body 1 are denatured due to high temperature, reduce the possibility that the pipe shaft body 1 cracks or collapses, and is safer to use.
The implementation principle of the embodiment is as follows: when the condition of a fire takes place, the water absorption heat in the water-cooled tube 3 is too high in order to avoid the temperature around the gas pipeline 2, avoid gas pipeline 2 to reburn and explode again, when the water in the water-cooled tube 3 heaies up to unable continuation absorption heat, temperature sensor 43 sends a signal to stop valve 41 and water pump 42, stop valve 41 opens and water pump 42 works, the rivers in the water-cooled tube 3 flow and change for new water, continue water-cooling work, the fire prevention security is higher, and it is more convenient to use.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a piping shaft fire prevention ventilation structure, includes vertical piping shaft body (1) of setting in the building and sets up gas pipeline (2) in piping shaft body (1), vertical a plurality of fire-resistant baffle (11) that are provided with in piping shaft body (1), be provided with ventilation mechanism, its characterized in that between fire-resistant baffle (11): be provided with water-cooling pipe (3) that the axis is vertical between fire-resistant baffle (11), the quantity of water-cooling pipe (3) is two and the symmetry sets up the both sides in gas pipeline (2), the both ends of water-cooling pipe (3) all are provided with stop valve (41), water-cooling pipe (3) are connected with water pump (42) and water supply through pipeline order.
2. The fire-proof ventilation structure of the piping shaft according to claim 1, wherein: the water-cooling pipe (3) comprises connecting parts (31) and cooling parts (32) which are arranged in a staggered mode, wherein the cooling parts (32) are arranged between the adjacent refractory partition plates (11) and the diameter of each cooling part is larger than that of each connecting part (31).
3. The fire-proof ventilation structure of the piping shaft according to claim 2, wherein: and a temperature sensor (43) is fixed in the water cooling pipe (3), and the temperature sensor (43) is simultaneously and electrically connected with a stop valve (41) and a controller of the water pump (42).
4. The fire-proof ventilation structure of the piping shaft according to claim 1, wherein: the gas pipeline (2) is externally coated with a heat radiation heat dissipation coating (21).
5. The fire-proof ventilation structure of the piping shaft according to claim 1, wherein: the ventilation mechanism is including setting up a plurality of pairs of air intake (12) and air outlet (13) on piping shaft body (1), and is every right air intake (12) and air outlet (13) all set up between corresponding fire-resistant baffle (11), air intake (12) department is fixed with fire prevention valve (121), air outlet (13) department is fixed with air exhauster (131).
6. The fire-proof ventilation structure of the piping shaft according to claim 1, wherein: and a carbon dioxide nozzle (5) is arranged between the fire-resistant partition plates (11), and the carbon dioxide nozzle (5) is sequentially connected with a control valve (51), a carbon dioxide gas cylinder (53), a driving pump (52) and a carbon dioxide system controller (54).
7. The fire-proof ventilation structure of the piping shaft according to claim 6, wherein: and a natural gas sensor (55) is fixed on the gas pipeline (2), and the carbon dioxide system controller (54) is electrically connected with the temperature sensor (43) and the natural gas sensor (55) at the same time.
8. The fire-proof ventilation structure of the piping shaft according to claim 1, wherein: the inner wall of the pipe shaft body (1) is coated with a heat insulation coating layer (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781098.3U CN211622436U (en) | 2019-10-22 | 2019-10-22 | Fireproof ventilation structure of pipe shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781098.3U CN211622436U (en) | 2019-10-22 | 2019-10-22 | Fireproof ventilation structure of pipe shaft |
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| Publication Number | Publication Date |
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| CN211622436U true CN211622436U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921781098.3U Active CN211622436U (en) | 2019-10-22 | 2019-10-22 | Fireproof ventilation structure of pipe shaft |
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| CN (1) | CN211622436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982702A (en) * | 2021-02-01 | 2021-06-18 | 贾童童 | Heat-resistant and fireproof building fire-fighting floor |
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2019
- 2019-10-22 CN CN201921781098.3U patent/CN211622436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982702A (en) * | 2021-02-01 | 2021-06-18 | 贾童童 | Heat-resistant and fireproof building fire-fighting floor |
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