CN216204046U - Stair footpath smoke exhaust structure of building fire protection equipment engineering - Google Patents

Abstract

The utility model discloses a stair walkway smoke exhaust structure of a building fire protection facility project, which comprises a smoke exhaust box and a smoke purification mechanism, wherein the smoke exhaust box is arranged on the stair walkway; a smoke exhaust box: an air inducing cover is arranged at an opening on the rear side surface of the smoke exhaust box, frame plates which are symmetrical up and down are arranged in the air inducing cover, induced fans are arranged on the rear side surfaces of the frame plates, air inlets which are uniformly distributed are arranged on the rear side surface of the air inducing cover, and a sewage discharge pipe is arranged at a sewage discharge port at the bottom end of the right side surface of the smoke exhaust box; flue gas purification mechanism: the smoke exhaust box is arranged inside the smoke exhaust box; wherein: the right side surface of the smoke discharging box is provided with a control switch group, the input end of the control switch group is electrically connected with an external power supply, and the input end of the induced fan is electrically connected with the output end of the control switch group; this stair pavement smoke exhaust structure of building fire protection equipment engineering can be fast with the fume emission in the stair pavement to the external environment in to can filter and purify the flue gas at the in-process of discharging fume, in order to avoid dusty flue gas to cause harm to the external environment.

Description

Stair footpath smoke exhaust structure of building fire protection equipment engineering

Technical Field

The utility model relates to the technical field of fire fighting systems, in particular to a stair walkway smoke exhaust structure of building fire fighting equipment engineering.

Background

A lot of serious fire accidents in the world cause a great deal of casualties and serious property loss, mainly dense smoke and flame in a fire scene. More harmful between the two is also dense smoke. The dense smoke adds a great deal of difficult resistance to escape for people trapped in the fire scene, the dark dense smoke makes the sight line of people unclear, the people cannot find the escape way, the people are difficult to breathe, the people can be poisoned by inhaling the dense smoke, even suffocate to die, and the people cannot escape from the fire scene.

Installation smoke exhaust structure can play certain guard action for personnel's life safety in the building, and smoke exhaust structure's effect is: once fire and smoke disaster occurs in the building, the smoke and fire fighting device can be quickly started to discharge smoke and smoke out of the building in time, so that people are evacuated and people in disaster relief are not trapped by the fire and smoke, casualties and property loss of people are reduced, and favorable conditions are created for people and fire fighting.

The stair pavement smoke exhaust structure of current building fire protection equipment engineering can realize the function of discharging fume, but most can't carry out filtration purification to the flue gas at the in-process of discharging fume for the flue gas that contains a large amount of smoke and dust is by direct emission to the external environment in, and then causes immeasurable harm to the external environment, for this reason, we provide a stair pavement smoke exhaust structure of building fire protection equipment engineering.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the existing defects and provides a stair walkway smoke exhaust structure of a building fire protection facility project, which can quickly exhaust smoke in the stair walkway to the external environment and can filter and purify the smoke in the smoke exhaust process so as to prevent the dust-containing smoke from damaging the external environment and effectively solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a stair walk smoke exhaust structure of building fire protection facility engineering comprises a smoke exhaust box and a smoke purification mechanism;

a smoke exhaust box: an air inducing cover is arranged at an opening on the rear side surface of the smoke exhaust box, frame plates which are symmetrical up and down are arranged in the air inducing cover, induced fans are arranged on the rear side surfaces of the frame plates, air inlets which are uniformly distributed are arranged on the rear side surface of the air inducing cover, and a sewage discharge pipe is arranged at a sewage discharge port at the bottom end of the right side surface of the smoke exhaust box;

flue gas purification mechanism: the smoke exhaust box is arranged inside the smoke exhaust box;

wherein: the right flank of discharge fume the case is equipped with control switch group, and external power source is connected to control switch group's input electricity, and the output of control switch group is connected to the input electricity of drawing the fan, can be fast with the flue gas emission in the stair pavement to the external environment in to can filter purification to the flue gas at the in-process of discharging fume, cause harm to external environment in order to avoid dusty flue gas.

Further, flue gas purification mechanism includes baffle, annular chamber, rotatory cover and atomizer, the baffle sets up in the inside center department of case of discharging fume, and the circular opening inner wall at baffle middle part is equipped with the annular chamber, and the circular opening internal rotation at baffle middle part is connected with rotatory cover, and the opening part of arc wall evenly distributed all is equipped with the atomizer in the rotatory cover, can produce the atomizing liquid drop and make it adhere to the surface at the smoke and dust for the smoke and dust receives the influence of gravity and falls into the inside bottom of case of discharging fume to this purification performance to the flue gas is realized.

Further, flue gas purification mechanism still includes storage water tank and water pump, the storage water tank sets up in the upper surface left side of case of discharging fume, and the water pump sets up in the upper surface middle part of case of discharging fume, and the delivery port of storage water tank right flank bottom passes through the pipeline with the water inlet of water pump left surface and links to each other, and the delivery pipe that the water pump bottom surface set up runs through the roof and the baffle of case of discharging fume and extends to the inside of annular chamber, and the output of the input electricity connection control switch group of water pump can supply water for atomizer.

Furthermore, the motor is arranged at the upper end of the front side face of the partition plate, a bevel gear is arranged at the lower end of an output shaft of the motor, a bevel gear ring is arranged at the edge of the front side face of the rotating cover, the bevel gear is meshed with the bevel gear ring and connected with the output end of the motor, the input end of the motor is electrically connected with the output end of the control switch group, atomized liquid drops sprayed by the atomizing nozzles can be guaranteed to be fully mixed with flue gas, and the purification efficiency is improved.

Furthermore, the middle part of the front side face of the smoke exhaust box is provided with an active carbon filter screen, the active carbon filter screen corresponds to the position of a smoke exhaust port of the front side face of the smoke exhaust box, and a dust filter screen plate is arranged in the smoke exhaust port of the front side face of the smoke exhaust box, so that smoke can be filtered and purified while smoke exhaust work is carried out, and harm to the external environment caused by dust-containing smoke is avoided.

Furthermore, the electric push rods of bilateral symmetry are arranged on the front side of the top wall of the interior of the smoke exhaust box, the lower ends of the telescopic ends of the two electric push rods are fixedly connected with the scraper, the scraper is in contact with the rear side face of the dust filter screen plate, and the input end of the electric push rod is electrically connected with the output end of the control switch group, so that smoke on the surface of the dust filter screen plate can be regularly cleaned, and the smoke can be prevented from blocking the dust filter screen plate and affecting smoke exhaust work.

Furthermore, the bottom surface of the smoke exhaust box is provided with a bottom plate, and four corners of the bottom plate are symmetrically provided with fixing holes, so that the smoke exhaust box can be fixed, and the stability of the working environment is ensured.

Compared with the prior art, the utility model has the beneficial effects that: this stair pavement smoke exhaust structure of building fire protection equipment engineering has following benefit:

1. the bottom plate is connected with the mounting part through the fixing hole by using a bolt, the fixation of the smoke discharging box is realized, the stability of the working environment is ensured, when the smoke discharging is needed, the gas flowing speed is accelerated by controlling the operation of the switch group, the smoke in the stair walk is sucked into the smoke discharging box, when the smoke passes through the channel in the middle of the rotating cover, the clean water prepared in advance in the water storage tank can be sent into the annular cavity by the operation of the water pump, then the clean water is compressed into atomized liquid drops by the atomizing nozzle and sprayed into the channel in the middle of the rotating cover, the atomized liquid drops can be attached to the outer surface of the smoke dust to increase the weight of the smoke dust, the smoke dust can fall into the bottom end in the smoke discharging box downwards under the influence of gravity, the purification function of the smoke dust is realized, finally, the sewage formed by the confluence of the smoke dust and the atomized liquid drops can be discharged through the blow-off pipe, in addition, the motor runs and drives the bevel gear to rotate, and the bevel gear ring are meshed and connected to influence the rotating cover to rotate, so that atomized liquid drops sprayed by the atomizing nozzles are fully mixed with flue gas, and the purification efficiency is improved.

2. The inside flue gas of case of discharging fume is when discharging to the outside, can filter remaining small part small size smoke and dust and harmful substance in the flue gas respectively through the cooperation of filter dust otter board and active carbon filter screen, guarantee the purification quality to the flue gas when carrying out the work of discharging fume, in order to avoid dusty flue gas to cause harm to external environment, electric putter can drive the scraper blade when stretching and move down, make the scraper blade scrape the inside bottom of dropping to the case of discharging fume with the smoke and dust on filter dust otter board surface, in order to avoid the smoke and dust to lead to the fact the influence with filter dust otter board jam and to the work of discharging fume.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a rear view internal cross-section of the present invention;

FIG. 3 is a schematic diagram of the right side view in plan view of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of the present invention.

In the figure: the device comprises a smoke exhaust box 1, an air draft cover 2, a frame plate 3, a fan 4, an air inlet 5, a sewage discharge pipe 6, a smoke purification mechanism 7, a partition plate 71, an annular cavity 72, a rotary cover 73, an atomizing nozzle 74, a water storage tank 75, a water pump 76, a control switch group 8, a motor 9, a bevel gear 10, a bevel gear 11, an active carbon filter screen 12, a dust filter screen 13, an electric push rod 14, a scraper 15, a bottom plate 16 and a fixing hole 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment provides a technical solution: a stair walk smoke exhaust structure of building fire protection facility engineering comprises a smoke exhaust box 1 and a smoke purification mechanism 7;

a smoke exhaust box 1: an induced draft cover 2 is arranged at an opening on the rear side face of the induced draft cover 2, frame plates 3 which are symmetrical up and down are arranged inside the induced draft cover 2, induced fans 4 are arranged on the rear side faces of the frame plates 3, air inlets 5 which are uniformly distributed are arranged on the rear side face of the induced draft cover 2, a sewage discharge pipe 6 is arranged at a sewage discharge opening at the bottom end of the right side face of the smoke discharge box 1, and when ventilation and smoke discharge are needed, the induced fans 4 operate to accelerate the gas flowing speed through the regulation and control of a control switch group 8, so that smoke in a stair walk is sucked into the smoke discharge box 1;

flue gas purification mechanism 7: the smoke purifying mechanism 7 comprises a partition plate 71, an annular cavity 72, a rotating cover 73 and an atomizing spray head 74, the partition plate 71 is arranged at the center of the interior of the smoke discharging box 1, the annular cavity 72 is arranged on the inner wall of a circular opening in the middle of the partition plate 71, the rotating cover 73 is rotationally connected in the circular opening in the middle of the partition plate 71, the atomizing spray heads 74 are arranged at openings uniformly distributed on the inner arc wall of the rotating cover 73, the smoke purifying mechanism 7 further comprises a water storage tank 75 and a water pump 76, the water storage tank 75 is arranged on the left side of the upper surface of the smoke discharging box 1, the water pump 76 is arranged in the middle of the upper surface of the smoke discharging box 1, a water outlet at the bottom end of the right side of the water storage tank 75 is connected with a water inlet at the left side of the water pump 76 through a pipeline, a water supply pipe arranged at the bottom of the water pump 76 penetrates through the top wall of the smoke discharging box 1 and the partition plate 71 and extends into the interior of the annular cavity 72, and an input end of the water pump 76 is electrically connected with an output end of the control switch group 8, when the flue gas passes through the channel in the middle of the rotating cover 73, the water pump 76 is operated to send clean water prepared in advance in the water storage tank 75 into the annular cavity 72, then the clean water is compressed into atomized liquid drops by the atomizing nozzle 74 and sprayed into the channel in the middle of the rotating cover 73, the atomized liquid drops can be attached to the outer surface of the smoke dust to increase the weight of the smoke dust, so that the smoke dust falls downwards into the bottom end in the inner part of the smoke discharging box 1 under the influence of gravity, the purification function of the flue gas is realized, and finally, sewage formed by confluence of the smoke dust and the atomized liquid drops is discharged through the sewage discharging pipe 6;

wherein: the right side of the smoke discharging box 1 is provided with a control switch group 8, the input end of the control switch group 8 is electrically connected with an external power supply, and the input end of the induced fan 4 is electrically connected with the output end of the control switch group 8.

Wherein: the motor 9 is arranged at the upper end of the front side face of the partition plate 71, the bevel gear 10 is arranged at the lower end of the output shaft of the motor 9, the bevel gear ring 11 is arranged at the edge of the front side face of the rotating cover 73, the bevel gear 10 is meshed with the bevel gear ring 11 and is connected with the output end of the input end of the motor 9, the motor 9 is operated to drive the bevel gear 10 to rotate and is influenced by the meshing connection relation between the bevel gear 10 and the bevel gear ring 11, the rotating cover 73 can be rotated, and therefore atomized liquid drops sprayed by the atomizing nozzles 74 are fully mixed with flue gas, and the purification efficiency is improved.

Wherein: the middle part of the front side face of the smoke exhaust box 1 is provided with an active carbon filter screen 12, the active carbon filter screen 12 corresponds to the position of a smoke exhaust port on the front side face of the smoke exhaust box 1, a dust filter screen plate 13 is arranged in a smoke exhaust port on the front side face of the smoke exhaust box 1, smoke inside the smoke exhaust box 1 is discharged to the outside, residual small-part small-volume smoke dust and harmful substances in the smoke can be filtered respectively through the cooperation of the dust filter screen plate 13 and the active carbon filter screen 12, the purification quality of the smoke is ensured when smoke exhaust work is carried out, and harm to the external environment is avoided by the dust-containing smoke.

Wherein: the inside roof front side of case 1 of discharging fume is equipped with bilateral symmetry's electric putter 14, two electric putter 14's flexible end lower extreme all with scraper blade 15 fixed connection, scraper blade 15 and the trailing flank contact of dust filter screen board 13, electric putter 14's input electricity connection control switch group 8's output, can drive scraper blade 15 when electric putter 14 extends and move down, make scraper blade 15 scrape the inside bottom of dropping to case 1 of discharging fume with the smoke and dust on dust filter screen board 13 surface, in order to avoid the smoke and dust to stop up dust filter screen board 13 and cause the influence to the work of discharging fume.

Wherein: the bottom surface of the smoke discharging box 1 is provided with a bottom plate 16, four corners of the bottom plate 16 are symmetrically provided with fixing holes 17, the bottom plate 16 is connected with the installation part through the fixing holes 17 by bolts, the smoke discharging box 1 is fixed, and the stability of the working environment is ensured.

The working principle of the stair walkway smoke exhaust structure of the building fire protection facility engineering provided by the utility model is as follows: the bottom plate 16 is connected with the installation part through the fixing hole 17 by using a bolt, the smoke discharging box 1 is fixed, the stability of the working environment is ensured, when ventilation and smoke discharging are needed, the air inducing fan 4 is operated to accelerate the gas flowing speed by controlling the regulation and control of the switch group 8, so that the smoke in the stair walk is sucked into the smoke discharging box 1, when the smoke passes through the channel in the middle of the rotating cover 73, the water pump 76 is operated to send the clean water prepared in advance in the water storage tank 75 into the annular cavity 72, then the atomizing nozzle 74 compresses the clean water into atomized liquid drops to be sprayed into the channel in the middle of the rotating cover 73, the atomized liquid drops can be attached to the outer surface of the smoke dust to increase the weight of the smoke dust, the smoke dust falls downwards into the inner bottom end of the smoke discharging box 1 under the influence of gravity, the smoke purifying function is realized, and finally the sewage formed by converging of the smoke dust and the atomized liquid drops is discharged through the sewage discharging pipe 6, in addition, the motor 9 runs to drive the bevel gear 10 to rotate, and is influenced by the meshing connection relationship between the bevel gear 10 and the bevel gear ring 11, so that the rotating cover 73 can rotate, thereby ensuring that atomized liquid drops sprayed by the atomizing nozzles 74 are fully mixed with smoke, and improving the purification efficiency, when the smoke in the smoke exhaust box 1 is discharged to the outside, a small part of small-volume smoke and harmful substances remained in the smoke can be respectively filtered through the matching of the dust filter screen 13 and the activated carbon filter screen 12, the purification quality of the smoke is ensured while the smoke exhaust work is carried out, so as to prevent the dust-containing smoke from causing harm to the external environment, the electric push rod 14 can drive the scraper 15 to move downwards when extending, so that the scraper 15 scrapes the smoke on the surface of the dust filter screen 13 to the inner bottom end of the smoke exhaust box 1, and the smoke can prevent the dust filter screen 13 from being blocked to influence the smoke exhaust work.

It should be noted that in the above embodiments, the induced air fan 4 is selected as a JSL3507 turbofan, the water pump 76 is selected as a G-type single screw pump, the motor 9 is selected as a GNB2118A motor, the electric push rod 14 is selected as a SY-a04A electric push rod, and the control switch group 8 is provided with switch buttons which are in one-to-one correspondence with the induced air fan 4, the water pump 76, the motor 9 and the electric push rod 14 and are used for controlling the switch operations thereof.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. The utility model provides a stair pavement smoke exhaust structure of building fire control facility engineering which characterized in that: comprises a smoke discharging box (1) and a smoke purifying mechanism (7);

smoke exhaust box (1): an air draft cover (2) is arranged at an opening on the rear side surface of the smoke exhaust box, frame plates (3) which are symmetrical up and down are arranged inside the air draft cover (2), induced fans (4) are arranged on the rear side surfaces of the frame plates (3), air inlets (5) which are uniformly distributed are arranged on the rear side surface of the air draft cover (2), and a sewage discharge pipe (6) is arranged at a sewage discharge port at the bottom end of the right side surface of the smoke exhaust box (1);

flue gas purification mechanism (7): is arranged inside the smoke exhaust box (1);

wherein: the right side face of the smoke exhaust box (1) is provided with a control switch group (8), the input end of the control switch group (8) is electrically connected with an external power supply, and the input end of the induced fan (4) is electrically connected with the output end of the control switch group (8).

2. A stair walkway smoke evacuation structure for construction of fire protection equipment engineering as claimed in claim 1, wherein: flue gas purification mechanism (7) include baffle (71), annular chamber (72), rotatory cover (73) and atomizer (74), baffle (71) set up in the inside center department of discharging fume case (1), and the circular opening inner wall at baffle (71) middle part is equipped with annular chamber (72), and the circular opening internal rotation at baffle (71) middle part is connected with rotatory cover (73), and rotatory cover (73) inner arc wall evenly distributed's opening part all is equipped with atomizer (74).

3. A stair walkway smoke evacuation structure for construction of fire protection equipment engineering as claimed in claim 2, wherein: flue gas purification mechanism (7) still include storage water tank (75) and water pump (76), storage water tank (75) set up in the upper surface left side of case (1) of discharging fume, and water pump (76) set up in the upper surface middle part of case (1) of discharging fume, and the delivery port of storage water tank (75) right flank bottom passes through the pipeline with the water inlet of water pump (76) left surface and links to each other, and the delivery pipe that water pump (76) bottom surface set up runs through the roof and baffle (71) of case (1) of discharging fume and extends to the inside of annular chamber (72), and the output of input electricity connection control switch group (8) of water pump (76).

4. A stair walkway smoke evacuation structure for construction of fire protection equipment engineering as claimed in claim 2, wherein: the upper end of the front side face of the partition plate (71) is provided with a motor (9), the lower end of an output shaft of the motor (9) is provided with a bevel gear (10), the edge of the front side face of the rotating cover (73) is provided with a bevel gear ring (11), the bevel gear (10) is meshed with the bevel gear ring (11), and the input end of the motor (9) is electrically connected with the output end of the control switch group (8).

5. A stair walkway smoke evacuation structure for construction of fire protection equipment engineering as claimed in claim 1, wherein: the middle part of the front side face of the smoke exhaust box (1) is provided with an active carbon filter screen (12), the active carbon filter screen (12) corresponds to the smoke exhaust port of the front side face of the smoke exhaust box (1), and a dust filter screen plate (13) is arranged in the smoke exhaust port of the front side face of the smoke exhaust box (1).

6. A stair walk smoke evacuation structure for construction of fire protection equipment engineering according to claim 5, wherein: the front side of the top wall of the interior of the smoke exhaust box (1) is provided with electric push rods (14) which are bilaterally symmetrical, the lower ends of the telescopic ends of the two electric push rods (14) are fixedly connected with a scraper (15), the scraper (15) is contacted with the rear side surface of a dust filtering screen plate (13), and the input end of the electric push rod (14) is electrically connected with the output end of a control switch group (8).

7. A stair walkway smoke evacuation structure for construction of fire protection equipment engineering as claimed in claim 1, wherein: the bottom surface of the smoke discharging box (1) is provided with a bottom plate (16), and four corners of the bottom plate (16) are symmetrically provided with fixing holes (17).

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