CN111720939B

CN111720939B - Dormitory corridor ventilation system of discharging fume

Info

Publication number: CN111720939B
Application number: CN202010479294.6A
Authority: CN
Inventors: 倪永曹; 刘瑛; 吴柴生; 王能辉; 胡秀亚
Original assignee: Zhonghua Huafeng Construction Co ltd
Current assignee: Zhonghua Huafeng Construction Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-10-08
Anticipated expiration: 2040-05-29
Also published as: CN111720939A

Abstract

The invention relates to a dormitory corridor ventilation and smoke exhaust system which comprises a ventilation device, a smoke exhaust device and a wind guide mechanism arranged at the bottoms of a smoke exhaust pipeline and an exhaust pipeline, wherein the ventilation device comprises the exhaust pipeline and an exhaust fan arranged at the bottom of a dormitory corridor and communicated with the exhaust pipeline, the smoke exhaust device comprises the smoke exhaust pipeline arranged in the dormitory corridor and a smoke exhaust fan arranged at the bottom of the smoke exhaust pipeline, the wind guide mechanism comprises a flow equalizing pipe, a flow equalizing cover and a wind deflector rotatably arranged at the bottom of the flow equalizing cover, the flow equalizing pipe is communicated with the smoke exhaust pipeline, and the bottom of the flow equalizing cover is provided with an inverted horn-shaped opening and is fixed at the bottom of the flow equalizing pipe. The invention has the effect of reducing the probability of fire spreading caused by accelerated air flow in the dormitory corridor due to the fact that the smoke exhaust pipeline generates large suction when a fire disaster occurs.

Description

Dormitory corridor ventilation system of discharging fume

Technical Field

The invention relates to the technical field of ventilation and smoke exhaust systems, in particular to a ventilation and smoke exhaust system for dormitory corridors.

Background

Currently, a corridor ventilation and smoke exhaust system is a device for realizing ventilation and smoke exhaust for high-rise buildings.

Current dormitory corridor ventilation smoke exhaust machine room is generally including setting up ventilation unit and the fume extractor in the dormitory building, and ventilation unit includes air pipe, set up dormitory building top and with air pipe intercommunication's forced draught blower, exhaust pipe and set up in dormitory building bottom and with the exhaust fan of exhaust pipe intercommunication, fume extractor is including setting up the exhaust pipe in the dormitory building, installing the solenoid valve in the exhaust pipe and setting up in the smoke exhausting fan of exhaust pipe bottom.

However, in the above-mentioned ventilation and smoke exhaust system, since the smoke exhaust device and the ventilation device are separately provided, when a fire occurs, the installation of the ventilation and smoke exhaust device is likely to further increase the air flow inside the dormitory building, thereby accelerating the spread of the fire, and providing a large improvement space.

Disclosure of Invention

The invention aims to provide a ventilation and smoke exhaust system for dormitory corridors, which has the effect of reducing the probability of fire spreading caused by accelerated air flow in dormitory corridors due to the fact that a smoke exhaust pipeline generates large suction force when a fire disaster occurs.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a dormitory corridor ventilation system of discharging fume, includes ventilation unit, fume extractor and sets up in the air guide mechanism of exhaust pipe and exhaust pipe bottom, ventilation unit includes exhaust pipe and sets up in dormitory building bottom and with the exhaust fan of exhaust pipe intercommunication, fume extractor is including setting up the exhaust pipe in dormitory building and setting up in the smoke exhaust fan of exhaust pipe bottom, air guide mechanism includes the flow equalizing pipe, flow equalizing cover and rotatory install in the aviation baffle of flow equalizing cover bottom, flow equalizing pipe intercommunication the exhaust pipe, the bottom of flow equalizing cover has the bottom that the form opening of falling loudspeaker just is fixed in the flow equalizing pipe.

By adopting the technical scheme, the suction force generated by the smoke exhaust fan can be distributed into all the flow equalizing pipes, the suction force generated by each flow equalizing pipe is reduced under the condition of ensuring that the whole suction force of the smoke exhaust fan is kept unchanged, so that the air flow generated in a dormitory corridor when all the flow equalizing pipes synchronously work is reduced when a fire disaster occurs, and the probability of rapid expansion of the fire disaster under the promotion of the wind force is reduced; the cover that flow equalizes that is located flow equalizing pipe bottom also is the form opening of falling loudspeaker for the produced suction of each flow equalizing pipe further shunts, and has increased the area that flow equalizing pipe bottom can absorb smog, has promoted smoke exhaust efficiency.

The invention is further configured to: the dormitory corridor's top is provided with the cigarette passageway of flowing of connecting all cover lateral walls that flow equalizes, the top of cigarette passageway is provided with the slope of leading cigarette inclined plane of inclining to one side of the pipe that flow equalizes, the cigarette passageway is followed the lateral wall circumference interval that flow equalizes the cover is equipped with a plurality ofly, the aviation baffle lid closes the bottom that flow equalizes the cover.

By adopting the technical scheme, when a fire disaster occurs in the dormitory building and a large amount of harmful smoke is generated, the smoke floats to the top of the dormitory building and then enters the smoke flowing channel positioned at the top of the dormitory building, and then the smoke exhaust fan of the smoke exhaust device works to generate suction force on the smoke flowing channel, so that the smoke positioned in the smoke flowing channel can be exhausted out of the dormitory building through the smoke exhaust pipeline, and the smoke concentration in the corridor is reduced; by arranging the smoke flowing channel, under the condition that the smoke in the smoke flowing channel is not large, the smoke can automatically enter the smoke exhaust pipeline through the smoke flowing channel under the action of the lifting force generated by fire, so that the energy is saved; the suction that above-mentioned smoke exhaust fan produced produces the horizontal suction that is on a parallel with the flow cigarette passageway after the aviation baffle direction, has reduced fume extractor during operation, and the probability that the air in the dormitory corridor flows is accelerated to the probability that the intensity of a fire in the dormitory corridor further enlarges under the fostering of wind-force has been reduced.

The invention is further configured to: the top of the air deflector is provided with an air guide protrusion protruding upwards, and the smoke flow channel extends to the air guide protrusion in an inclined mode.

Through adopting above-mentioned technical scheme, through setting up the wind-guiding and protruding for the smoke and dust that the flue gas passageway entered into in the exhaust pipe can promote rising angle and the rising speed of smoke and dust through the wind-guiding is protruding, thereby has promoted fume extractor's fume extraction efficiency.

The invention is further configured to: the ventilation unit is still including straining husky subassembly, strain husky subassembly including set up in air pipe strain husky board and set up in straining the board at the first filter at husky board top, be provided with on the first filter board and strain the through-hole just and install in air pipe's top, strain husky board install in the below of first filter board, strain and seted up a plurality of sand filtration through-holes on the husky board, the top of straining the sand through-hole is provided with the bellied sand of straining that makes progress and is protruding.

Through adopting above-mentioned technical scheme, make this kind of dormitory building ventilation system can adapt to this kind of bad weather of sand and dust storm, and when taking place sand and dust storm or the more bad weather of sand and dust, can close the window in the dormitory corridor under the general condition, at this moment, ventilation system carries out work, carry outside air to dormitory corridor in after filtering of straining the husky subassembly, the wearing and tearing of sand and dust to air pipe, forced draught blower and new trend system have been reduced, ventilation unit's life has been prolonged.

The invention is further configured to: the lateral wall of air pipe is provided with one and places the cover, place the cover intercommunication the inside cavity of air pipe, strain the sand board and slide and install in placing the cover, the lateral wall of placing the cover is provided with the drive strain the sand board in place the driving piece that slides in the cover.

By adopting the technical scheme, when no sand storm occurs, the sand filtering plate is placed in the placing cover, so that the ventilation efficiency of the ventilation pipeline is not influenced by the arrangement of the sand filtering plate; when a sand storm occurs, the sand filtering plate is tightly pressed with the inner wall of the ventilating duct under the action of the driving piece, so that the filtering of the sand in the sand storm is realized.

The invention is further configured to: the air pipe is located the border department of straining the husky board is provided with sand pipeline down, the vertical all dormitory corridors of intercommunication downwards of sand pipeline down is provided with the connecting tube of the husky pipeline under the intercommunication and communicates the gravel and sand collecting box of connecting tube in the dormitory corridor, demountable installation between gravel and sand collecting box and the connecting tube.

By adopting the technical scheme, the dust and sand filtered by the sand filter plate can be conveniently collected, and the collection and utilization of the dust and sand are realized; after the sand and dust collection in the sand and stone collecting box is full, the sand and stone collecting box can be replaced, so that the sand and stone collecting box can collect sand and stone for a long time, and the collected sand and stone can be directly conveyed to a sand and stone factory for recycling.

The invention is further configured to: all the connecting pipelines are provided with a valve.

Through adopting above-mentioned technical scheme, reduced the sand and dust that the gravel and sand collecting box is located husky pipeline under in-process of changing and has taken place the probability of leaking.

The invention is further configured to: the gravel and sand collecting box comprises a sealing cover plate fixed at the bottom of the connecting pipeline and a box body used for containing gravel and sand, a sealing gasket is arranged at the bottom of the sealing cover plate, the sealing cover plate covers the top of the box body, and the sealing cover plate and the box body are fixed through hasps.

Through adopting above-mentioned technical scheme, set up sealed the pad in the bottom of closing the apron to the realization is to the sealed of gravel and sand collecting box, has reduced the probability that the gravel and sand in the gravel and sand collecting box takes place to leak.

The invention is further configured to: the lateral wall of the box body is provided with a taking-out opening, and the lateral wall of the taking-out opening is provided with a taking-out cover plate in a sliding manner.

Through adopting above-mentioned technical scheme, set up at the lateral wall of box and take out the opening, when the conflagration breaing out, open and take out the apron, can take out the part with the gravel and sand that is located the gravel and sand collecting box for put out a fire, compare in using the fire extinguisher to put out a fire, directly use gravel and sand to put out a fire the cost of putting out a fire lower.

The invention is further configured to: the lateral wall of box is provided with a U-shaped collar, the vertical dovetail groove of having seted up downwards in the both sides of U-shaped collar, the lateral wall intercommunication in dovetail groove the box, the both sides of taking out the apron are provided with the trapezoidal strip of embedding dovetail groove, the lateral wall of trapezoidal strip is provided with first sealing strip, the top of taking out the apron is provided with the second sealing strip with first sealing strip integrated into one piece, first sealing strip and second sealing strip all compress tightly with the lateral wall of box.

Through adopting above-mentioned technical scheme, take out the apron and realize through first sealing strip and second sealing strip and the box between sealed to make things convenient for the box and take out the sealed and opening and shutting between the apron.

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

by arranging the air guide mechanism, the probability that air flow in a corridor of a dormitory is accelerated due to the fact that a smoke exhaust pipeline generates large suction force when a fire disaster occurs, and the fire spread is caused is reduced;

by arranging the sand filtering component, the ventilation and smoke exhaust system can adapt to the severe weather of sand storm, and can collect sand and stones in the sand storm, so that the influence caused by the sand storm can be reduced to a certain extent;

through setting up the gravel and sand collecting box, can collect the utilization to the gravel and sand in the sand storm.

Drawings

Fig. 1 is a partial sectional structural view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view showing the overall structure of the sand and stone collecting box and the bellows of the present invention.

FIG. 4 is a sectional view of the sand and stone collecting box and the bellows of the present invention.

Fig. 5 is a schematic view of the mounting structure between the take-out cover plate and the U-shaped mounting bar in the present invention.

In the figure, 1, a ventilation device; 11. a ventilation duct; 111. an installation opening; 12. a blower; 13. a fresh air device; 14. an exhaust duct; 15. an exhaust fan; 2. a fume extractor; 21. a smoke exhaust duct; 22. a smoke exhaust fan; 3. an air guide mechanism; 31. a flow equalizing pipe; 32. a flow equalizing cover; 33. an air deflector; 331. wind guide protrusions; 4. a sand filtration assembly; 41. primary filter plate; 411. a filtration through hole; 42. a sand filtering plate; 421. a sand filtration through hole; 422. sand filtering protrusions; 423. a sand discharging groove; 43. a drive member; 44. placing a cover; 441. a sand-blocking brush; 442. a sand falling outlet; 443. a sand guide slope; 444. a sand storage bottle; 445. a sliding groove; 45. a gravel collection box; 451. closing the cover plate; 4511. a gasket; 452. a box body; 4521. taking out the opening; 4522. a U-shaped mounting ring; 4523. a trapezoidal groove; 453. a bellows; 454. taking out the cover plate; 4541. a trapezoidal strip; 4542. a first seal strip; 4543. a second seal strip; 46. a sand pipeline is arranged; 5. dormitory corridors; 51. a smoke flow channel; 511. a smoke guide inclined plane; 52. and connecting the pipelines.

Detailed Description

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

Referring to fig. 1, a ventilation and smoke exhaust system for dormitory corridors 5 comprises a ventilation device 1, a smoke exhaust device 2 and an air guide mechanism 3 arranged at the bottom of a smoke exhaust pipeline 21 and an air exhaust pipeline 14.

The ventilation device 1 includes a ventilation duct 11, a blower 12 disposed on the top of the ventilation duct 11 and communicated with the ventilation duct 11 to supply air to the ventilation duct 11, a fresh air device 13 disposed in the ventilation duct 11 to purify air passing through the ventilation duct 11, an exhaust duct 14 disposed on one side of the ventilation duct 11, and an exhaust fan 15 disposed on the bottom of the dormitory building and communicated with the exhaust duct 14.

The smoke exhaust device 2 comprises a smoke exhaust pipeline 21 arranged in the dormitory building and a smoke exhaust fan 22 arranged at the bottom of the smoke exhaust pipeline 21. The air guiding mechanism 3 includes a flow equalizing pipe 31, a flow equalizing cover 32, and an air guiding plate 33 rotatably mounted at the bottom of the flow equalizing cover 32.

The top of dormitory corridor 5 is provided with the stream cigarette passageway 51 of connecting all cover 32 lateral walls that flow equalizes, the top of stream cigarette passageway 51 is provided with the leading cigarette inclined plane 511 of the upslope of 31 one side of the flow equalizes of orientation, 31 intercommunication exhaust stack 21 of flow equalizes, the bottom of flow equalizes cover 32 has the opening of falling loudspeaker form and is fixed in the bottom of flow equalizes pipe 31, stream cigarette passageway 51 is equipped with a plurality ofly along the lateral wall circumference interval of flow equalizes cover 32, aviation baffle 33 lid fits the bottom of flow equalizes cover 32. In this embodiment, the air deflector 33 and the flow equalizing cover 32 are connected by bolts.

The top of the air deflector 33 is provided with an air guide protrusion 331 protruding upwards, the smoke flow channel 51 extends obliquely to the air guide protrusion 331, and the included angle between the smoke guide inclined plane 511 and the horizontal plane is smaller than the included angle between the outer side wall of the air guide protrusion 331 and the horizontal plane.

Referring to fig. 1 and 2, the ventilation device 1 further includes a sand filtering assembly 4, wherein the sand filtering assembly 4 includes a sand filtering plate 42 disposed on the ventilation duct 11, a primary filtering plate 41 disposed on the top of the sand filtering plate 42, and a driving member 43 for driving the sand filtering plate 42 to horizontally slide.

The primary filter sheet 41 is provided with a primary filter through hole 411 and is attached to the top of the ventilation duct 11.

The side wall of the ventilation pipeline 11 below the primary filter plate 41 is provided with an installation opening 111 for installing the sand filter plate 42, the outside of the installation opening 111 is sealed and covered with a placing cover 44, and the side wall of the placing cover 44 is provided with a sliding groove 445 for sliding the sand filter plate 42. The edge of the inner side of the placing cover 44 is provided with a sand blocking brush 441 for blocking sand dust, the bottom of the placing cover 44 is provided with a sand falling outlet 442, the bottom of the sand falling outlet 442 is in threaded connection with a sand storage bottle 444, the placing cover 44 is arranged below the sand blocking brush 441 and is provided with a sand guiding inclined plane 443, and the sand guiding inclined plane 443 is communicated with the sand storage bottle 444.

The driving piece 43 is a cylinder, is provided with the air supply that drives the cylinder motion in the dormitory building, and driving piece 43 installs in the one side of placing cover 44, and the output shaft of driving piece 43 runs through and places cover 44 back and strain sand board 42 welded fastening. Strain the husky board 42 and install in the recess 445 that slides, strain and seted up a plurality of sand filtration through-holes 421 on the husky board 42, the top of straining sand through-hole 421 is provided with the protruding sand filtration of upwards 422, hinders husky brush 441 and strains husky board 42 and compress tightly, when straining husky board 42 and need not use under ordinary state, make the remaining gravel and sand that is located on straining husky board 42 clear up under the effect that hinders husky brush 441, fall into storage sand bottle 444 afterwards and collect.

The ventilating duct 11 is provided with a sand discharging duct 46 at the edge of the sand filtering plate 42, the sand discharging duct 46 is vertically communicated with all the dormitory corridors 5, and a connecting duct 52 communicated with the sand discharging duct 46 and a sand and stone collecting box 45 communicated with the connecting duct 52 are arranged in each dormitory corridor 5. A valve is provided on all of the connecting pipes 52.

Referring to fig. 3 and 4, the gravel and sand collection box 45 includes a closed cover 451 fixed to the bottom of the connection pipe 52 and a box 452 for containing gravel and sand. A bellows 453 is provided between the sealing cover 451 and the connection pipe 52 to allow the sealing cover 451 to be extended and contracted to a certain extent, a packing 4511 is provided at the bottom of the sealing cover 451, the sealing cover 451 covers the top of the case 452, and the sealing cover 451 and the case 452 are fixed by a snap.

Referring to fig. 3 and 5, a side wall of the box 452 is provided with a take-out opening 4521, and a take-out cover 454 is slidably mounted on the side wall of the take-out opening 4521. The lateral wall of box 452 is provided with a U-shaped collar 4522, trapezoidal groove 4523 has been seted up to the both sides of U-shaped collar 4522 are vertical downwards, the lateral wall of trapezoidal groove 4523 communicates to the box 452 lateral wall, the both sides of taking out apron 454 are provided with trapezoidal strip 4541 of embedding trapezoidal groove 4523, the lateral wall of trapezoidal strip 4541 is provided with first sealing strip 4542, the top of taking out apron 454 is provided with second sealing strip 4543 with first sealing strip 4542 integrated into one piece, first sealing strip 4542 and second sealing strip 4543 all compress tightly with the lateral wall of box 452.

The use principle of the above embodiment is as follows: the suction force generated by the smoke exhaust fan 22 can be distributed into all the flow equalizing pipes 31, the suction force generated by each flow equalizing pipe 31 is reduced under the condition that the whole suction force of the smoke exhaust fan 22 is ensured to be unchanged, so that the air flow generated in the dormitory corridor 5 when all the flow equalizing pipes 31 work synchronously when a fire occurs is reduced, and the probability of rapid expansion of the fire under the promotion of the wind force is reduced; the flow equalizing cover 32 positioned at the bottom of the flow equalizing pipe 31 is also provided with an inverted horn-shaped opening, so that the suction force generated by each flow equalizing pipe 31 is further divided, the area of the bottom of the flow equalizing pipe 31 capable of absorbing smoke is increased, and the smoke exhaust efficiency is improved.

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

Claims

1. The utility model provides a dormitory corridor ventilation system of discharging fume, includes ventilation unit (1) and fume extractor (2), ventilation unit (1) include exhaust pipe (14) and set up in dormitory building top and with exhaust fan (15) of exhaust pipe (14) intercommunication, fume extractor (2) are including setting up exhaust pipe (21) in dormitory building and setting up in smoke exhausting fan (22) at exhaust pipe (21) top, its characterized in that: the smoke exhaust fan is characterized by further comprising an air guide mechanism (3) arranged at the bottom of the smoke exhaust pipeline (21), wherein the air guide mechanism (3) comprises a flow equalizing pipe (31), a flow equalizing cover (32) and an air guide plate (33) rotatably arranged at the bottom of the flow equalizing cover (32), the flow equalizing pipe (31) is communicated with the smoke exhaust pipeline (21), suction force generated by the smoke exhaust fan (22) can be distributed into all flow equalizing pipes (31), and the bottom of the flow equalizing cover (32) is provided with an inverted horn-shaped opening and is fixed to the bottom of the flow equalizing pipe (31); the dormitory corridor (5) is provided with a smoke flowing channel (51) connected with the side walls of all the flow equalizing covers (32), the top of the smoke flowing channel (51) is provided with a smoke guide inclined plane (511) which inclines upwards towards one side of the flow equalizing pipe (31), the smoke flowing channel (51) is arranged at intervals along the circumferential direction of the outer side wall of the flow equalizing cover (32), and the air deflector (33) covers the bottom of the flow equalizing cover (32); the top of the air deflector (33) is provided with an air guide protrusion (331) protruding upwards, and the smoke flow channel (51) extends to the air guide protrusion (331) in an inclined manner.

2. A dormitory corridor ventilation and smoke evacuation system as claimed in claim 1, wherein: ventilation unit (1) still includes air pipe (11), ventilation unit (1) still includes and strains husky subassembly (4), strain husky subassembly (4) including set up in the sand filtering plate (42) of air pipe (11) and set up in filter sand board (42) top first filter plate (41), be provided with on first filter plate (41) and strain the through-hole just and install in the top of air pipe (11), strain husky board (42) install in the below of first filter plate (41), strain and seted up a plurality of sand filtering through-holes (421) on husky board (42), the top of straining sand through-hole (421) is provided with upwards bellied sand filtering protrudingly (422).

3. A dormitory corridor ventilation and smoke evacuation system as claimed in claim 2, wherein: the lateral wall of air pipe (11) is provided with one and places cover (44), place cover (44) intercommunication air pipe (11) inside cavity, strain husky board (42) and slide and install in placing cover (44), the lateral wall of placing cover (44) is provided with the drive strain husky board (42) in place driving piece (43) that slides in cover (44).

4. A dormitory corridor ventilation and smoke evacuation system as claimed in claim 3, wherein: the ventilating duct (11) is located the border department of straining sand board (42) is provided with sand pipeline (46) down, is provided with connecting tube (52) and the husky stone collecting box (45) of intercommunication connecting tube (52) of sand pipeline (46) down in the intercommunication in dormitory corridor (5), demountable installation between husky stone collecting box (45) and connecting tube (52).

5. Dormitory corridor ventilation and smoke evacuation system according to claim 4, characterized in that: all the connecting pipelines (52) are provided with a valve.

6. Dormitory corridor ventilation and smoke evacuation system according to claim 5, characterized in that: gravel and sand collecting box (45) are including being fixed in sealed apron (451) of connecting tube (52) bottom and box (452) that are used for holding gravel and sand, the bottom of sealed apron (451) is provided with sealed pad (4511), sealed apron (451) lid fits the top of box (452), sealed apron (451) with adopt the hasp to fix between box (452).

7. The dormitory corridor ventilation and smoke evacuation system according to claim 6, wherein: the side wall of the box body (452) is provided with a taking-out opening (4521), and the side wall of the taking-out opening (4521) is provided with a taking-out cover plate (454) in a sliding mode.

8. A dormitory corridor ventilation and smoke evacuation system as claimed in claim 7, wherein: the lateral wall of box (452) is provided with a U-shaped collar (4522), trapezoidal groove (4523) have been seted up to the both sides of U-shaped collar (4522) vertically downwards, the lateral wall intercommunication in trapezoidal groove (4523) box (452), the both sides of taking out apron (454) are provided with trapezoidal strip (4541) of embedding trapezoidal groove (4523), the lateral wall of trapezoidal strip (4541) is provided with first sealing strip (4542), the top of taking out apron (454) is provided with second sealing strip (4543) with first sealing strip (4542) integrated into one piece, first sealing strip (4542) and second sealing strip (4543) all compress tightly with the lateral wall of box (452).