CN204402984U - Smoke exhaust fan housing structure - Google Patents
Smoke exhaust fan housing structure Download PDFInfo
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- CN204402984U CN204402984U CN201520050299.1U CN201520050299U CN204402984U CN 204402984 U CN204402984 U CN 204402984U CN 201520050299 U CN201520050299 U CN 201520050299U CN 204402984 U CN204402984 U CN 204402984U
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- regulator plate
- rotating cylinder
- exhaust outlet
- air
- supporting drum
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Abstract
The utility model discloses smoke exhaust fan housing structure, comprise casing and rotating cylinder, the top of barge board is hinged is provided with regulator plate, the outer wall of barge board is fixed with supporting drum, slide in supporting drum and be provided with connecting rod, connecting rod is connected with the bottom of supporting drum by spring, and the two ends of regulator plate offer the rectangle groove matched with roller.The stressed direction with air motion of regulator plate is moved, simultaneously roller moves towards the other end of rectangle groove after being under pressure, spring is compressed, can produce a rightabout active force after spring generation elastic strain makes regulator plate come back to home position, when the air-flow that rotating cylinder produces is unstable, regulator plate is subject to swing in various degree, spring swings a generation support force in time according to it and makes regulator plate be in stable state all the time, avoid air-flow unstable and cause exhaust outlet place to occur the situation of wadding stream, ensure that blower fan wind direction in smoke evacuation process keeps stable state, improve the ventilation efficiency of blower fan.
Description
Technical field
The utility model relates to smoke exhaust fan technical field, specifically refers to smoke exhaust fan housing structure.
background techniqueat present, Building Fire Protection purging system leaks sudden and violent problem a lot, and particularly the quality of fire prevention to high buildings purging system is extremely important, and a lot of fire is because of the very serious consequence of the bad generation of purging system.Present tall building is much all provided with fire-fighting smoke exhaust system, discharges a large amount of poisonous dense smoke that fire burning produces.In fire-fighting smoke exhaust system, smoke exhaust fan is its core component, and the stability of work generally just decides the quality of whole system.Existing smoke exhaust fan reaches 200-300 DEG C because of combustion product gases temperature, long high temperature easily makes smoke exhaust fan be out of shape, damages, affect smoke discharging effect, generally, when building is on fire, all power supplys will be cut off, once cut off the electricity supply, smoke exhaust fan just cannot run, and makes blower fan useless; And in long smoke evacuation process, the air-flow that blower fan produces ventilation duct easy phase mutual friction and cause the energy loss of air-flow, and no longer stable in the direction at exhaust outlet place, form wadding stream and the ventilation efficiency in pipeline reduced.
Model utility content
The purpose of this utility model is to provide smoke exhaust fan housing structure, ensures that blower fan wind direction in smoke evacuation process keeps stable state, improves the ventilation efficiency of blower fan.
The purpose of this utility model is achieved through the following technical solutions:
Smoke exhaust fan housing structure, comprise casing and be arranged on the rotating cylinder of box house, the exhaust outlet that rotating cylinder is communicated with is offered in the front of casing, the back side of casing offers the intake grill be communicated with rotating cylinder, described rotating cylinder offers along its excircle the blade of multiple inclination, also comprise barge board, described barge board is arranged on immediately below exhaust outlet, the top of barge board is hinged is provided with regulator plate, the outer wall of barge board is fixed with supporting drum, slide in supporting drum and be provided with connecting rod, connecting rod is connected with the bottom of supporting drum by spring, and on the top of connecting rod, roller is installed, the two ends of regulator plate offer the rectangle groove matched with roller.
During utility model works, the rotating shaft of rotating cylinder internal fixtion is connected with external motor by chain, rotating cylinder is setting in motion under the driving of motor, bring the air-flow poured in by intake grill into rotating cylinder, exhaust outlet is discharged by air flow collection under the wind direction of rotating cylinder regulates, discharge along pipeline indoor to reach to the smog in ventilation duct and heat, stop spreading of the intensity of a fire and smog, in blower fan smoke evacuation process for a long time, the two ends of rotating cylinder are communicated with box house, rotating cylinder is entered by the two ends of rotating cylinder when air-flow pours in, the air-flow that rotating cylinder is discharged regulates through the appropriateness of regulator plate, ensure its wind direction just to the center of ventilation duct, the energy loss that reduction air-flow forms wadding stream at the volley and causes, improves the air draft in ventilation duct and smoke exhaust efficiency, further, when air-flow starts to collide on regulator plate, the stressed direction with air motion of regulator plate is moved, simultaneously roller moves towards the other end of rectangle groove after being under pressure, spring is compressed, can produce a rightabout active force after spring generation elastic strain makes regulator plate come back to home position, when the air-flow that rotating cylinder produces is unstable, regulator plate is subject to swing in various degree, spring swings a generation support force in time according to it and makes regulator plate be in stable state all the time, avoid air-flow unstable and cause exhaust outlet place to occur the situation of wadding stream, ensure that blower fan wind direction in smoke evacuation process keeps stable state, improve the ventilation efficiency of blower fan.
Further, also comprise the projection that cross section is arc, described projection is fixed on regulator plate on the inwall of supporting drum side, and successively decreases in the direction that the thickness of protruding one end points to the movable end of regulator plate along the fixed end from regulator plate.The inwall of regulator plate is fixed with the projection of arc, air-flow is cushioned in advance before impact regulator plate, avoid regulator plate to regulate the air turbulence caused not in time and directly between rotating cylinder and exhaust outlet when being subject to unstable gas shock, and then reduce the ventilation efficiency at exhaust outlet place.
Further, the cross section of described exhaust outlet is square.Shape many employings rectangle of ventilation duct, as preferably, exhaust outlet is set to square, can to facilitate between casing with ventilation duct quick is connected, and the radiation-curable various piece to ventilation duct inwall of the air-flow of being discharged by blower fan, avoid smog in pipeline, to form wadding stream with the resistance improving air motion.
Further, the cross section of described exhaust outlet is circular.According to square being directly proportional of fluid friction resistance loss and liquid speed, in the figure that various closed curve surrounds, when girth one regularly, the area of a circle is maximum.Therefore when exhaust outlet girth is identical, the surface friction drag of square exhaust outlet is the twice of circular exhaust outlet, and visible circular exhaust outlet can greatly reduce the fluid loss of fluid through exhaust outlet.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model is when air-flow starts to collide on regulator plate, the stressed direction with air motion of regulator plate is moved, simultaneously roller moves towards the other end of rectangle groove after being under pressure, spring is compressed, can produce a rightabout active force after spring generation elastic strain makes regulator plate come back to home position, when the air-flow that rotating cylinder produces is unstable, regulator plate is subject to swing in various degree, spring swings a generation support force in time according to it and makes regulator plate be in stable state all the time, avoid air-flow unstable and cause exhaust outlet place to occur the situation of wadding stream, ensure that blower fan wind direction in smoke evacuation process keeps stable state, improve the ventilation efficiency of blower fan,
2, the utility model is fixed with the projection of arc on the inwall of regulator plate, air-flow is cushioned in advance before impact regulator plate, avoid regulator plate to regulate the air turbulence caused not in time and directly between rotating cylinder and exhaust outlet when being subject to unstable gas shock, and then reduce the ventilation efficiency at exhaust outlet place;
3, the utility model square to be directly proportional according to fluid friction resistance loss and liquid speed, in the figure that various closed curve surrounds, when girth one regularly, the area of a circle is maximum.Therefore when exhaust outlet girth is identical, the surface friction drag of square exhaust outlet is the twice of circular exhaust outlet, and visible circular exhaust outlet can greatly reduce the fluid loss of fluid through exhaust outlet.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 be A of the present utility model to partial enlarged drawing;
Mark and corresponding component title in accompanying drawing:
1-casing, 2-exhaust outlet, 3-rotating cylinder, 4-barge board, 5-regulator plate, 6-supporting drum, 7-spring, 8-projection, 9-rectangle groove, 10-roller, 11-connecting rod.
Embodiment
Clearly understand for making the purpose of this utility model, technological scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figure 1 to Figure 2, the present embodiment comprises casing 1 and is arranged on the rotating cylinder 3 of casing 1 inside, the exhaust outlet 2 that rotating cylinder 3 is communicated with is offered in the front of casing 1, the back side of casing 1 offers the intake grill be communicated with rotating cylinder 3, described rotating cylinder 3 offers along its excircle the blade of multiple inclination, also comprise barge board 4, described barge board 4 is arranged on immediately below exhaust outlet 2, the top of barge board 4 is hinged is provided with regulator plate 5, the outer wall of barge board 4 is fixed with supporting drum 6, slide in supporting drum 6 and be provided with connecting rod 11, connecting rod 11 is connected with the bottom of supporting drum 6 by spring 7, and on the top of connecting rod 11, roller 10 is installed, the two ends of regulator plate 5 offer the rectangle groove 9 matched with roller 10, also comprise the projection 8 that cross section is arc, described protruding 8 are fixed on regulator plate 5 on the inwall of supporting drum 6 side, and successively decrease in the direction that the thickness of protruding 8 one end points to the movable end of regulator plate 5 along the fixed end from regulator plate 5.
During utility model works, the rotating shaft of rotating cylinder 3 internal fixtion is connected with external motor by chain, rotating cylinder 3 is setting in motion under the driving of motor, bring the air-flow poured in by intake grill into rotating cylinder 3, exhaust outlet 2 will be discharged in air flow collection under the wind direction of rotating cylinder 3 regulates, discharge along pipeline indoor to reach to the smog in ventilation duct and heat, stop spreading of the intensity of a fire and smog, in blower fan smoke evacuation process for a long time, the two ends of rotating cylinder 3 are communicated with casing 1 inside, rotating cylinder 3 is entered by the two ends of rotating cylinder 3 when air-flow pours in, the air-flow that rotating cylinder 3 is discharged regulates through the appropriateness of regulator plate 5, ensure its wind direction just to the center of ventilation duct, the energy loss that reduction air-flow forms wadding stream at the volley and causes, improves the air draft in ventilation duct and smoke exhaust efficiency, further, when air-flow starts to collide on regulator plate 5, the stressed direction with air motion of regulator plate 5 is moved, simultaneously roller 10 moves towards the other end of rectangle groove 9 after being under pressure, spring 7 is compressed, can produce a rightabout active force after elastic strain occurs spring 7 makes regulator plate 5 come back to home position, when the air-flow that rotating cylinder 3 produces is unstable, regulator plate 5 is subject to swing in various degree, spring 7 swings a generation support force in time according to it and makes regulator plate 5 be in stable state all the time, avoid air-flow unstable and cause exhaust outlet 2 place to occur the situation of wadding stream, ensure that blower fan wind direction in smoke evacuation process keeps stable state, improve the ventilation efficiency of blower fan,
Wherein, the inwall of regulator plate 5 is fixed with the projection 8 of arc, air-flow is cushioned in advance before impact regulator plate 5, avoid regulator plate 5 to regulate the air turbulence caused not in time and directly between rotating cylinder 3 and exhaust outlet 2 when being subject to unstable gas shock, and then reduce the ventilation efficiency at exhaust outlet 2 place.
As preferably, the cross section of described exhaust outlet 2 is square.Shape many employings rectangle of ventilation duct, as preferably, exhaust outlet 2 is set to square, casing 1 can be facilitated to be connected with quick between ventilation duct, and the radiation-curable various piece to ventilation duct inwall of the air-flow of being discharged by blower fan, avoid smog in pipeline, to form wadding stream with the resistance improving air motion.
As preferably, the cross section of described exhaust outlet 2 is circular.According to square being directly proportional of fluid friction resistance loss and liquid speed, in the figure that various closed curve surrounds, when girth one regularly, the area of a circle is maximum.Therefore when exhaust outlet 2 girth is identical, the surface friction drag of square exhaust outlet 2 is twices of circular exhaust outlet 2, and visible circular exhaust outlet 2 can greatly reduce the fluid loss of fluid through exhaust outlet 2.
Above-described embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. smoke exhaust fan housing structure, comprise casing (1) and be arranged on the inner rotating cylinder (3) of casing (1), the exhaust outlet (2) that rotating cylinder (3) is communicated with is offered in the front of casing (1), the back side of casing (1) offers the intake grill be communicated with rotating cylinder (3), it is characterized in that: the blade offering multiple inclination on described rotating cylinder (3) along its excircle, also comprise barge board (4), described barge board (4) is arranged on immediately below exhaust outlet (2), the top of barge board (4) is hinged is provided with regulator plate (5), the outer wall of barge board (4) is fixed with supporting drum (6), slide in supporting drum (6) and be provided with connecting rod (11), connecting rod (11) is connected by the bottom of spring (7) with supporting drum (6), and on the top of connecting rod (11), roller (10) is installed, the two ends of regulator plate (5) offer the rectangle groove (9) matched with roller (10).
2. smoke exhaust fan housing structure according to claim 1, it is characterized in that: also comprise the projection (8) that cross section is arc, described projection (8) is fixed on regulator plate (5) on the inwall of supporting drum (6) side, and successively decreases in the direction that the thickness of protruding (8) one end points to the movable end of regulator plate (5) along the fixed end from regulator plate (5).
3. smoke exhaust fan housing structure according to claim 1 and 2, is characterized in that: the cross section of described exhaust outlet (2) is square.
4. smoke exhaust fan housing structure according to claim 1 and 2, is characterized in that: the cross section of described exhaust outlet (2) is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050299.1U CN204402984U (en) | 2015-01-26 | 2015-01-26 | Smoke exhaust fan housing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050299.1U CN204402984U (en) | 2015-01-26 | 2015-01-26 | Smoke exhaust fan housing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402984U true CN204402984U (en) | 2015-06-17 |
Family
ID=53426848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520050299.1U Expired - Fee Related CN204402984U (en) | 2015-01-26 | 2015-01-26 | Smoke exhaust fan housing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112672557A (en) * | 2020-12-08 | 2021-04-16 | 河南光之源光电科技有限公司 | LED display screen box of preapring for an unfavorable turn of events shape |
-
2015
- 2015-01-26 CN CN201520050299.1U patent/CN204402984U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112672557A (en) * | 2020-12-08 | 2021-04-16 | 河南光之源光电科技有限公司 | LED display screen box of preapring for an unfavorable turn of events shape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160126 |
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| EXPY | Termination of patent right or utility model |