CN217082831U - Negative pressure smoke exhaust device for fire engineering - Google Patents
Negative pressure smoke exhaust device for fire engineering Download PDFInfo
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- CN217082831U CN217082831U CN202221008193.1U CN202221008193U CN217082831U CN 217082831 U CN217082831 U CN 217082831U CN 202221008193 U CN202221008193 U CN 202221008193U CN 217082831 U CN217082831 U CN 217082831U
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- shell
- cylinder
- smoke exhaust
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- fixed
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- 239000000779 smoke Substances 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003517 fume Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 3
- 240000007817 Olea europaea Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a negative pressure smoke exhaust device for fire engineering, which effectively solves the problems that the prior fire-fighting smoke exhaust equipment can not deal with emergency, can not rapidly discharge a large amount of indoor smoke under the emergency, has higher cost, poor applicability and inconvenient maintenance, and is easy to form dust accumulation at a discharge port to influence the ventilation and smoke exhaust effect; the technical scheme for solving the problem is that the flange type ring sealing device comprises a vertical ring shell, wherein the cross section of the ring shell is in a football shape, a vertical cylinder is arranged at the lower end of the ring shell, a fixed cylinder is sleeved at the lower end of the vertical cylinder, and a flange plate is fixed at the lower end of the vertical cylinder; the inner side wall of the circular shell is provided with a plurality of first smoke outlets, the middle part of the circular shell is provided with a hollow shell, the overlooking projection of the shell is in a streamline shape with a large front end and a small rear end, a left side plate and a right side plate of the shell are provided with a plurality of second smoke outlets, the upper end and the lower end of the shell are both provided with communicating pipes, and the shell is communicated with the cavity of the circular shell through the communicating pipes; the front end of the circular ring shell is arranged on the front side of the front end of the shell, and the rear end of the shell extends out of the circular ring shell and is arranged on the rear side of the circular ring shell.
Description
Technical Field
The utility model relates to a fire control technical field that discharges fume, especially a fire engineering negative pressure fume extractor.
Background
The existing factories, workshops and buildings are all provided with a fire-fighting smoke exhaust chimney above, and the chimney is usually ventilated and is used as an important smoke exhaust channel in emergency. The existing ventilation and air exchange structure is mostly in a rotating spherical shape, uninterrupted ventilation and air exchange can be realized for workshops by utilizing natural wind, the structure is used as indoor ventilation and air exchange effects in ordinary days, but in emergency situations such as fire and the like, the mechanical structure of the ventilation and air exchange structure determines that the device cannot rapidly discharge a large amount of indoor smoke in a short time, and the large amount of smoke is gathered and has fatal danger. Modern enterprises have gradually raised self-protection and protection awareness, and a plurality of smoke exhaust plate doors are additionally arranged, but the problems of increased cost, occupied space and the like are also accompanied. Also, a small number of enterprises adopt the exhaust fan to exhaust smoke, so a series of devices such as an emergency power supply, a safety switch, a sensor and the like need to be matched, a fan blade filter screen needs to be cleaned after a period of time, and the fan and the filter screen need to be installed in a fixed place, so that the fan and the filter screen are inconvenient to disassemble and maintain.
In summary, the ventilation device for fire fighting in the prior art cannot meet the current production and living needs, cannot cope with emergency emergencies, cannot draw out a large amount of indoor smoke as soon as possible, is easy to generate dust accumulation when the existing exhaust fan is used in the daytime, and has poor universality and applicability and high cost.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a fire-fighting engineering negative pressure fume extractor, the effectual current fire control fume extractor of having solved can not deal with emergency, can not discharge a large amount of smog in the room rapidly under emergency, and the cost is higher, and the suitability is poor, and inconvenient maintenance is easily piled up at the discharge port formation dust, influences its ventilation smoke exhaust effect's problem.
The technical scheme for solving the problem is that the bearing comprises a vertical annular shell, wherein the section of the annular shell is in a football shape, a vertical cylinder is arranged at the lower end of the annular shell, a fixed cylinder is sleeved at the lower end of the vertical cylinder, a bearing is connected between the fixed cylinder and the vertical cylinder, and a flange plate is fixed at the lower end of the vertical cylinder; the inner side wall of the circular shell is provided with a plurality of first smoke outlets, the middle part of the circular shell is provided with a hollow shell, the side view projection of the shell is in a water drop shape with a round front end and a sharp rear end, the top view projection of the shell is in a streamline shape with a big front end and a small rear end, the left side plate and the right side plate of the shell are provided with a plurality of second smoke outlets, the upper end and the lower end of the shell are both provided with communicating pipes, and the shell is communicated with the cavity of the circular shell through the communicating pipes;
the front end of the circular ring shell is arranged on the front side of the front end of the shell, and the rear end of the shell extends out of the circular ring shell and is arranged on the rear side of the circular ring shell.
Furthermore, a rectangular block is fixed at the front end of the shell, a rectangular cylinder capable of sliding back and forth along the rectangular block is sleeved on the rectangular block, a plurality of compression screws are screwed on the side wall of the rectangular cylinder and can fix the rectangular cylinder on the rectangular block, a vertical fixing plate is fixed at the front end of the rectangular cylinder, and a fan is fixed on the fixing plate.
Furthermore, the fan comprises a fan coaxial with the annular shell, and a motor is connected to the fan and fixed on the fixing plate.
The utility model discloses the structure is ingenious, and make full use of natural wind and venturi principle can enough be suitable for the flatday ventilation, also can discharge the smog of indoor gathering rapidly under emergency, can artificially repack under emergency, and the wind speed that increases the air outlet realizes discharging fume rapidly with this, and the smog smoke and dust does not pass through or contact fan, except that in addition, the utility model discloses take rain-proof effect certainly, even can not take place the raindrop to get into the condition of exhaust fume channel yet in rainy day, maintain simply, easily realize, the suitability is strong.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a side sectional view of the present invention.
Fig. 3 is a top cross-sectional view of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model comprises a vertical circular shell 1, wherein the cross section of the circular shell 1 is football-shaped, a vertical cylinder 2 is arranged at the lower end of the circular shell 1, a fixed cylinder 3 is sleeved at the lower end of the vertical cylinder 2, a bearing is connected between the fixed cylinder 3 and the vertical cylinder 2, and a flange plate 4 is fixed at the lower end of the vertical cylinder 2; a plurality of first smoke outlets 5 are formed in the inner side wall of the circular shell 1, a hollow shell 6 is arranged in the middle of the circular shell 1, the side view projection of the shell 6 is in a drop shape with a round front end and a sharp rear end, the top view projection of the shell 6 is in a streamline shape with a large front end and a small rear end, a plurality of second smoke outlets 7 are formed in the left side plate and the right side plate of the shell 6, communicating pipes 8 are arranged at the upper end and the lower end of the shell 6, and the cavities of the shell 6 and the circular shell 1 are communicated through the communicating pipes 8;
the front end of the ring shell 1 is arranged on the front side of the front end of the shell 6, and the rear end of the shell 6 extends out of the ring shell 1 and is arranged on the rear side of the ring shell 1.
In order to improve the smoke exhaust efficiency in an emergency, the front end of the shell 6 is fixed with a rectangular block 9, a rectangular cylinder 10 capable of sliding back and forth along the rectangular block 9 is sleeved on the rectangular block 9, a plurality of compression screws are screwed on the side wall of the rectangular cylinder 10, the rectangular cylinder 10 can be fixed on the rectangular block 9 by the compression screws, a vertical fixing plate 11 is fixed at the front end of the rectangular cylinder 10, and a fan 12 is fixed on the fixing plate 11.
The fan 12 comprises a fan 12 coaxial with the annular shell 1, a motor 13 is connected to the fan 12, and the motor 13 is fixed on the fixing plate 11.
It should be noted that the front end of the casing 6 does not extend out of the circular casing 1, and the rear end of the casing 6 extends out of the circular casing 1, so that the casing 6 is similar to a sail, and can make the circular casing aim at the incoming direction of the wind.
When using at ordinary times, a rectangular cylinder 10, equipment such as fan 12 need not install, fix the flange in this device in smoke exhaust channel's suitable position department, under the effect of natural wind power, round-ring shell 1 is just to going to of wind, ensure that there is sufficient wind to pass through in the round-ring shell 1, wind is when passing through, because the cross-section of round-ring shell 1 is olive form, according to the big smaller principle of pressure of velocity of flow, at first exhaust port 5, the velocity of flow of second exhaust port 7 is great, make round- ring shell 1, 6 intracavity of casing all are negative pressure state, make smog can take out through a plurality of first exhaust ports 5 and a plurality of second exhaust port 7, reach ventilation and the purpose of discharging fume.
When a great fire occurs, a large amount of smoke is gathered indoors, at the moment, a fire fighter can sleeve the rectangular cylinder 10 on the rectangular block 9, the rectangular cylinder and the rectangular block are fixed by the compression screws, the fan 12 is started, the fan 12 blows the round-ring shell 1 to increase the flow rate of wind at the round-ring shell 1, the smoke exhaust efficiency of the first smoke exhaust port 5 and the second smoke exhaust port 7 is greatly improved, and the smoke does not pass through or contact the fan 12 and the motor 13.
The utility model discloses well make full use of wind-force for casing 6 can play the purpose of adjustment direction, so can realize that round-link shell 1 can guarantee all the time towards coming of wind to, guarantee ventilation efficiency.
The utility model discloses the structure is ingenious, and make full use of natural wind and venturi principle can enough be suitable for the flatday ventilation, also can discharge the smog of indoor gathering rapidly under emergency, can artificially repack under emergency, and the wind speed that increases the air outlet realizes discharging fume rapidly with this, and the smog smoke and dust does not pass through or contact fan, except that in addition, the utility model discloses take rain-proof effect certainly, even can not take place the raindrop to get into the condition of exhaust fume channel yet in rainy day, maintain simply, easily realize, the suitability is strong.
Claims (3)
1. The negative pressure smoke exhaust device for the fire engineering is characterized by comprising a vertical annular shell (1), wherein the section of the annular shell (1) is football-shaped, a vertical cylinder (2) is arranged at the lower end of the annular shell (1), a fixed cylinder (3) is sleeved at the lower end of the vertical cylinder (2), a bearing is connected between the fixed cylinder (3) and the vertical cylinder (2), and a flange plate (4) is fixed at the lower end of the vertical cylinder (2); the novel kitchen range hood is characterized in that a plurality of first smoke exhaust ports (5) are formed in the inner side wall of the circular shell (1), a hollow shell (6) is arranged in the middle of the circular shell (1), the side view projection of the shell (6) is in a water drop shape with a round front end and a sharp rear end, the overlook projection of the shell (6) is in a streamline shape with a large front end and a small rear end, a plurality of second smoke exhaust ports (7) are formed in the left side plate and the right side plate of the shell (6), communicating pipes (8) are arranged at the upper end and the lower end of the shell (6), and the cavities of the shell (6) and the circular shell (1) are communicated through the communicating pipes (8);
the front end of the round-ring shell (1) is arranged on the front side of the front end of the shell (6), and the rear end of the shell (6) extends out of the round-ring shell (1) and is arranged on the rear side of the round-ring shell (1).
2. The negative pressure smoke exhaust device for the fire fighting project according to claim 1 is characterized in that a rectangular block (9) is fixed at the front end of the shell (6), a rectangular cylinder (10) capable of sliding back and forth along the rectangular block (9) is sleeved on the rectangular block (9), a plurality of compression screws are screwed on the side wall of the rectangular cylinder (10) and can fix the rectangular cylinder (10) on the rectangular block (9), a vertical fixing plate (11) is fixed at the front end of the rectangular cylinder (10), and a fan (12) is fixed on the fixing plate (11).
3. A fire-fighting project negative pressure smoke exhaust device according to claim 2, characterized in that the fan (12) comprises a fan (12) coaxial with the circular shell (1), a motor (13) is connected to the fan (12), and the motor (13) is fixed on the fixing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221008193.1U CN217082831U (en) | 2022-04-28 | 2022-04-28 | Negative pressure smoke exhaust device for fire engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221008193.1U CN217082831U (en) | 2022-04-28 | 2022-04-28 | Negative pressure smoke exhaust device for fire engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217082831U true CN217082831U (en) | 2022-07-29 |
Family
ID=82503735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221008193.1U Active CN217082831U (en) | 2022-04-28 | 2022-04-28 | Negative pressure smoke exhaust device for fire engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217082831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
-
2022
- 2022-04-28 CN CN202221008193.1U patent/CN217082831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704544A (en) * | 2024-02-04 | 2024-03-15 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
| CN117704544B (en) * | 2024-02-04 | 2024-05-28 | 中国建筑设计研究院有限公司 | Natural ventilation energy-saving system for large building space |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450000, Building 7, Phase III, Zhongxing Xinye Port, Intersection of Haihai East Road and Economic Development 20th Street, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee after: Henan Aiweisheng Xiao'an Technology Group Co.,Ltd. Country or region after: China Address before: No. 411, Ronghui international building, No. 101, Zijingshan Road, Guancheng Hui District, Zhengzhou, Henan 450000 Patentee before: Henan aiweisheng Fire Technology Co.,Ltd. Country or region before: China |