CN113531732A

CN113531732A - Fire-fighting smoke exhaust system

Info

Publication number: CN113531732A
Application number: CN202110534039.1A
Authority: CN
Inventors: 孙杨; 尹通; 王二刚; 史俊; 祁鼎文
Original assignee: Suzhou China Construction Group Co ltd
Current assignee: Suzhou China Construction Group Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-10-22

Abstract

The utility model relates to a fire control system of discharging fume relates to the field of system of discharging fume, and it is including locating the ventilating shaft of stair passageway both sides, is equipped with a plurality of groups in one of them ventilating shaft and airs exhaust the subassembly, and the subassembly of airing exhaust includes mainstream pipe and shunt tubes, the shunt tubes include with the downtake of mainstream pipe intercommunication, with the transition pipe of downtake intercommunication and with the tedge pipe of transition pipe intercommunication, the transition pipe slope be equipped with the air-supply line of stair passageway intercommunication. This application has the effect that improves the ability of discharging fume of fire control system of discharging fume.

Description

Fire-fighting smoke exhaust system

Technical Field

The application relates to the field of smoke exhaust systems, in particular to a fire protection smoke exhaust system.

Background

Along with the development in city, high-rise office building and shopping mall are more and more, have the possibility of casualties when guaranteeing building body safety and the fire emergence of the reduction building body, and essential can install the fire control system of discharging fume in the building body. The existing fire-fighting smoke exhaust system mainly comprises ventilation shafts arranged on two sides of a stair passageway in a building body, and the speed of smoke exhaust is increased by utilizing a fan, so that people in the building body can be evacuated, and the possibility of casualties caused by smoke dust accumulated in the building body is reduced.

In view of the above-mentioned related technologies, the inventor believes that the smoke exhaust capability of the current fire-fighting smoke exhaust system is weak, and needs to be further improved.

Disclosure of Invention

In order to improve the ability of fire protection smoke exhaust system, this application provides fire protection smoke exhaust system.

The application provides a fire control system of discharging fume adopts following technical scheme:

fire control system of discharging fume, including locating the ventilation shaft of stair passageway both sides, be equipped with a plurality of groups in one of them ventilation shaft and exhaust the subassembly, exhaust the subassembly and include main flow pipe and shunt tubes, the shunt tubes includes the downcomer with main flow pipe intercommunication, the transition pipe with the downcomer intercommunication and the tedge with the transition pipe intercommunication, and the transition pipe slope is equipped with the air-supply line with stair passageway intercommunication.

Through adopting above-mentioned technical scheme, this application utilizes mainstream pipe and shunt tubes to form the subassembly of airing exhaust at the ventilation shaft for the principle of the subassembly of airing exhaust applied to tesla check valve, thereby when the conflagration breaing out, smog accessible air-supply line in the stair passageway enters into the subassembly of airing exhaust, and then can discharge the building body fast through the subassembly of airing exhaust, thereby has reached the effect of quick smoke exhaust, has reduced the possibility that takes place the casualties in the building body.

Optionally, the stair passageway is provided with an air inlet communicated with the other ventilation shaft, guide rings located on two sides of the air inlet are arranged on the side wall of the ventilation shaft, a guide rod is inserted into each guide ring, a plugging plate is arranged between the two guide rods, and a driving assembly used for driving the plugging plate to move is arranged on the side wall of the ventilation shaft.

Through adopting above-mentioned technical scheme, when taking place the conflagration, utilize drive assembly drive shutoff board to remove to make the shutoff board shutoff stop up the air intake, thereby can reduce building body outside air and enter into the building body in order to accelerate the possibility of conflagration situation through combustion-supporting via the ventilation shaft.

Optionally, the driving assembly comprises a driving motor arranged on the side wall of the ventilation shaft, a gear is arranged on an output shaft of the driving motor, a sliding rod is arranged on the plugging plate, and teeth meshed with the gear are arranged on the sliding rod.

Through adopting above-mentioned technical scheme, utilize driving motor to drive the gear and rotate to drive the closure plate through the slide bar and remove, and then make the closure plate can block up the air intake.

Optionally, the inner side wall of the guide ring is provided with a ball.

Through adopting above-mentioned technical scheme to make the smooth and easy removal of shutoff board of pole drive that slides.

Optionally, a smoke alarm is arranged in the building body channel, and the driving motor and the smoke alarm are connected with a controller together.

By adopting the technical scheme, when the smoke alarm detects smoke, a signal is transmitted to the controller, the controller starts the driving motor, and the driving motor is utilized to drive the plugging plate to plug the air inlet.

Optionally, the side wall of the stair channel is provided with a vent for installing an air inlet pipe, a filter frame located at the vent is arranged in the stair channel, and the side edge of the filter frame is provided with a fixing groove;

the side wall of the ventilation opening is provided with a moving groove, the stair channel is provided with a fixed rod positioned in the moving groove, the fixed rod is provided with a limiting ring, the stair channel is provided with a fixed ring positioned at the groove opening of the moving groove, the fixed rod is sleeved with a compression spring, two ends of the compression spring are respectively connected to the fixed ring and the limiting ring, and the end surface of the fixed rod is an inclined surface;

the stair channel is provided with a moving assembly for driving the fixed rod to move.

By adopting the technical scheme, the filter frame is utilized to filter out larger smoke particles in smoke, so that the possibility that the smoke particles block the air exhaust assembly is reduced, and the air exhaust assembly is ensured to have better smoke exhaust capability.

Optionally, the removal subassembly is including seting up in stair passageway lateral wall and with the holding tank of shifting chute intercommunication, the stair passageway is equipped with the actuating lever that inserts in the holding tank, the terminal surface of actuating lever is the inclined plane, is connected with the butt pole that inserts the holding tank on the dead lever, the terminal surface of butt pole be with the butt face that the cooperation of actuating lever terminal surface was used.

Through adopting above-mentioned technical scheme, when needing to be changed and filtering the frame, press the actuating lever, under the cooperation on butt face and inclined plane, the actuating lever can drive the dead lever and break away from the fixed slot to can reach and dismantle the purpose of filtering the frame in order to change.

Optionally, the one end that the holding tank was stretched out to the actuating lever is connected with the handle, and the cover is equipped with reset spring on the actuating lever, and reset spring's both ends are connected respectively in handle and stair passageway lateral wall.

Through adopting above-mentioned technical scheme, utilize reset spring's elasticity to make the actuating lever have the trend of stretching out the holding tank to after taking out the filter frame, the actuating lever can take place to remove, so that the staff changes the filter frame afterwards.

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

1. the application applies the Tesla one-way valve principle to the exhaust assembly, and smoke generated in a building body can be quickly exhausted out of the building body by utilizing the exhaust assembly, so that the smoke exhaust capacity of a fire-fighting smoke exhaust system is improved, and the possibility of casualties is reduced;

2. according to the building air inlet blocking device, the air inlet is blocked by the blocking plate, so that the air outside the building enters the building through the air inlet, and the possibility of fire situations is further accelerated;

3. this application utilizes the filter frame to filter smoke and dust granule in to smog, has reduced the smoke and dust and has blockked up the subassembly of airing exhaust and influence the possibility of the subassembly effect of airing exhaust.

Drawings

Fig. 1 is a schematic overall structure diagram of a fire protection and smoke exhaust system according to an embodiment of the present application.

Fig. 2 is a sectional view of a building body according to an embodiment of the present application.

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.

Fig. 5 is a schematic overall structure diagram of the fire-fighting smoke evacuation system according to the embodiment of the present application.

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

Description of reference numerals: 1. a building body; 11. a stair passage; 12. a ventilation shaft; 13. a vent; 14. a moving groove; 141. fixing the rod; 142. a limiting ring; 143. a compression spring; 144. a butting rod; 15. a fixing ring; 16. accommodating grooves; 17. a drive rod; 171. a handle; 172. a return spring; 18. an air inlet; 181. a guide ring; 19. mounting a plate; 191. a drive motor; 192. a gear; 2. an air exhaust assembly; 21. a main flow pipe; 22. a shunt tube; 221. a down pipe; 222. a transition duct; 223. a riser pipe; 224. an air inlet pipe; 3. a filter frame; 31. a filter screen; 32. fixing grooves; 4. a plugging plate; 41. a guide bar; 42. a slide bar; 421. teeth; 5. a smoke alarm.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses fire control system of discharging fume. Referring to fig. 1 and 2, the fire-fighting smoke-discharging system comprises ventilation shafts 12 arranged at two sides of a passageway 11 of a building 1, wherein one ventilation shaft 12 is provided with a plurality of mutually communicated air-discharging assemblies 2 by using a support rod, and each floor corresponds to two groups of air-discharging assemblies 2. The exhaust assembly 2 comprises a main pipe 21 and a shunt pipe 22, the shunt pipe 22 comprises a downcomer 221 communicated with the main pipe 21, the downcomer 221 is communicated with a transition pipe 222, the transition pipe 222 is communicated with an ascending pipe 223, and the ascending pipe 223 is communicated with the main pipe 21. The transition pipe 222 is communicated with an air inlet pipe 224, the side edge of the stair channel 11 is provided with a vent hole 13 for installing the end part of the air inlet pipe 224, when a fire disaster occurs, smoke in the stair channel 11 can enter the air inlet pipe 224 through the vent hole 13 and then is discharged out of the building body 1 through the air exhaust assembly 2.

The mutual communication of main flow pipe 21, downcomer 221, transition pipe 222 and tedge 223 makes the subassembly 2 of airing exhaust apply to the fluid flow principle of tesla check valve to when the conflagration breaks out, the smog accessible subassembly 2 of airing exhaust in the stair passageway 11 discharges building body 1 fast, has effectively improved the ability of discharging fume of fire control smoke exhaust system, has reduced the possibility that takes place the casualties in the building body 1.

Referring to fig. 2 and 3, in order to reduce the smoke particles carried in the smoke from blocking the exhaust assembly 2 to affect the smoke discharging capability of the exhaust assembly 2, a filter frame 3 is disposed at the ventilation opening 13 of the stair passage 11, a filter screen 31 is installed in the filter frame 3, and the filter frame 3 can be used to filter out the smoke particles carried in the smoke.

Referring to fig. 3 and 4, in order to facilitate the replacement of the filter frame 3 by a worker, a moving groove 14 is formed in a sidewall of the ventilation opening 13, a fixing rod 141 is inserted into the moving groove 14, and correspondingly, a fixing groove 32 is formed in a side surface of the filter frame 3, and an end portion of the fixing rod 141 can be snapped into the fixing groove 32. By the snap fit of the fixing lever 141 and the fixing groove 32, the worker can install the filter frame 3 in the ventilation opening 13 and replace the filter frame 3.

Referring to fig. 4, the side wall of the vent 13 is provided with a fixing ring 15 located at the notch of the moving groove 14, the fixing rod 141 is sleeved with a limit ring 142, the fixing rod 141 is sleeved with a compression spring 143 located between the fixing ring 15 and the limit ring 142, one end of the compression spring 143 is connected to the fixing ring 15, and the other end is connected to the limit ring 142. The end surface of the fixing rod 141 is an inclined surface, when the filter frame 3 is clamped into the ventilation opening 13, the fixing rod 141 moves towards the inside of the moving groove 14 under the extrusion of the filter frame 3, at this time, the compression spring 143 is stretched, and when the fixing groove 32 on the filter frame 3 corresponds to the fixing rod 141, the fixing rod 141 can be clamped into the fixing groove 32 under the action of the compression spring 143, so that the purpose of mounting the filter frame 3 at the ventilation opening 13 is achieved.

Referring to fig. 4, the sidewall of the stairway 11 is provided with an accommodating groove 16 communicated with the moving groove 14, a driving rod 17 is inserted into the accommodating groove 16, the end surface of the driving rod 17 is an inclined surface, a butting rod 144 is connected to the fixing rod 141, and the end surface of the butting rod 144 is a butting surface matched with the inclined surface of the driving rod 17. When the driving lever 17 is pressed, the driving lever 17 may move toward the inside of the moving slot 14 by the inclined surface and the abutting surface, so that the end of the driving lever 17 is separated from the fixing slot 32 of the filter frame 3, and thus, the filter frame 3 may be replaced by a worker.

Referring to fig. 4, in order for the worker to press the driving lever 17, a handle 171 is installed at one end of the driving lever 17 protruding out of the receiving groove 16. The driving rod 17 is sleeved with a return spring 172, one end of the return spring 172 is connected to the side wall of the stair passage 11, and the other end is connected to the handle 171. When the worker releases the driving lever 17 after detaching the filter frame 3, the driving lever 17 is moved toward the outside of the receiving groove 16 by the return spring 172, so that the driving lever 17 cancels the pressing of the abutting lever 144, and thus the fixing lever 141 is moved toward the outside of the moving groove 14 by the compression spring 143, so that the worker can install a new filter frame 3 at the vent 13.

Referring to fig. 5 and 6, the ventilation shaft 12 on the other side of the stairway 11 is provided with an air inlet 18 communicated with the stairway 11, and the air inlet 18 is used for ensuring the daily ventilation of the building 1. The inside wall of the ventilation shaft 12 is provided with a plugging plate 4 capable of moving up and down, when a fire breaks out, the plugging plate 4 is moved to plug the air inlet 18, so that the possibility that the air outside the building 1 flows into the building 1 from the air inlet 18 to accelerate the fire situation is reduced. The inside wall of the ventilation shaft 12 is provided with a guide ring 181 on both sides of the air inlet 18, the blocking plate 4 is provided with a guide rod 41 inserted into the guide ring 181, and the inside wall of the guide ring 181 is provided with balls. The guide ring 181 and the balls allow the blocking plate 4 to move smoothly in the vertical direction.

Referring to fig. 6, in order to drive the blocking plate 4 to move, a mounting plate 19 is installed on the inner side wall of the ventilation shaft 12, a driving motor 191 is installed on the mounting plate 19, and a gear 192 is installed on an output shaft of the driving motor 191. The top surface of the plugging plate 4 is provided with a sliding rod 42, and the sliding rod 42 is provided with teeth 421 meshed with the gear 192. The driving motor 191 is started, and the blocking plate 4 can be driven to move through the gear 192 and the driving rod 17, so that the blocking plate 4 can block the air inlet 18.

Referring to fig. 1, a smoke alarm 5 is disposed in a stairway passage corresponding to each floor, and the smoke alarm 5 and the driving motor 191 are connected to the controller together. When a fire breaks out, the smoke alarm 5 transmits a signal to the controller, and the controller controls the driving motor 191 to start, so that the blocking plate 4 blocks the air inlet 18.

The implementation principle of the fire protection and smoke exhaust system of the embodiment of the application is as follows: when a fire disaster happens to the stairs, the smoke alarm 5 detects smoke in the stair channel 11, and the driving motor 191 is started under the control of the controller, so that the blocking plate 4 is driven to block the air inlet 18, and the possibility that the air outside the building body 1 enters the building body 1 through the air inlet 18 to accelerate the fire disaster situation is reduced. The smoke in the stair channel 11 enters the exhaust component 2 through the air inlet pipe 224, and under the action of the exhaust component 2, the smoke can be rapidly exhausted out of the building body 1, so that the smoke exhaust capacity of the fire-fighting smoke exhaust system is improved, and the possibility of casualties in the building body is reduced.

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. Fire control system of discharging fume, its characterized in that: the ventilating device comprises ventilating shafts (12) arranged on two sides of a stair channel (11), wherein a plurality of groups of air exhaust assemblies (2) are arranged in one ventilating shaft (12), each air exhaust assembly (2) comprises a main flow pipe (21) and a shunt pipe (22), each shunt pipe (22) comprises a descending pipe (221) communicated with the main flow pipe (21), a transition pipe (222) communicated with the descending pipe (221) and an ascending pipe (223) communicated with the transition pipe (222), and an air inlet pipe (224) communicated with the stair channel (11) is obliquely arranged on each transition pipe (222).

2. A fire protection and smoke evacuation system as claimed in claim 1 wherein: stair passageway (11) are opened have with another air intake (18) that ventilating shaft (12) communicate, are equipped with guide ring (181) that are located air intake (18) both sides on the lateral wall of ventilating shaft (12), have inserted a guide bar (41) in guide ring (181), are equipped with a shutoff board (4) between two guide bar (41), are equipped with the drive assembly who is used for driving shutoff board (4) and remove on the lateral wall of ventilating shaft (12).

3. A fire protection and smoke evacuation system as claimed in claim 2 wherein: the driving assembly comprises a driving motor (191) arranged on the side wall of the ventilating shaft (12), a gear (192) is arranged on an output shaft of the driving motor (191), a sliding rod (42) is arranged on the plugging plate (4), and teeth (421) meshed with the gear (192) are arranged on the sliding rod (42).

4. A fire protection and smoke evacuation system as claimed in claim 2 wherein: and balls are arranged on the inner side wall of the guide ring (181).

5. A fire protection and smoke evacuation system as claimed in claim 1 wherein: a smoke alarm (5) is arranged in the stair channel (11), and the driving motor (191) and the smoke alarm (5) are jointly connected with a controller.

6. A fire protection and smoke evacuation system as claimed in claim 1 wherein: the side wall of the stair channel (11) is provided with a vent (13) for installing an air inlet pipe (224), a filter frame (3) positioned at the vent (13) is arranged in the stair channel (11), and the side edge of the filter frame (3) is provided with a fixing groove (32);

the side wall of the ventilation opening (13) is provided with a moving groove (14), the stair channel (11) is provided with a fixed rod (141) positioned in the moving groove (14), the fixed rod (141) is provided with a limit ring (142), the stair channel (11) is provided with a fixed ring (15) positioned at the notch of the moving groove (14), the fixed rod (141) is sleeved with a compression spring (143), two ends of the compression spring (143) are respectively connected to the fixed ring (15) and the limit ring (142), and the end face of the fixed rod (141) is an inclined plane;

the stair channel (11) is provided with a moving component for driving the fixing rod (141) to move.

7. A fire protection and smoke evacuation system as claimed in claim 6 wherein: remove the subassembly including offering in stair passageway (11) lateral wall and with holding tank (16) that shifting chute (14) communicate, stair passageway (11) are equipped with and insert actuating lever (17) in holding tank (16), and the terminal surface of actuating lever (17) is the inclined plane, is connected with butt pole (144) that insert holding tank (16) on dead lever (141), and the terminal surface of butt pole (144) is the butt face that uses with actuating lever (17) terminal surface cooperation.

8. A fire protection and smoke evacuation system as claimed in claim 7 wherein: one end of the driving rod (17) extending out of the accommodating groove (16) is connected with a handle (171), a reset spring (172) is sleeved on the driving rod (17), and two ends of the reset spring (172) are connected to the side wall of the handle (171) and the side wall of the stair channel (11) respectively.