CN202023745U - Fireproof ventilator - Google Patents
Fireproof ventilator Download PDFInfo
- Publication number
- CN202023745U CN202023745U CN201020265558XU CN201020265558U CN202023745U CN 202023745 U CN202023745 U CN 202023745U CN 201020265558X U CN201020265558X U CN 201020265558XU CN 201020265558 U CN201020265558 U CN 201020265558U CN 202023745 U CN202023745 U CN 202023745U
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- Prior art keywords
- fire
- ventilator
- ventilation fan
- fireproof
- wall
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Abstract
The title of the utility model is fireproof ventilator. The fireproof ventilator is mainly used for ventilating and air changing of a small power distribution room of public buildings or of a small room with fire protection requirements. According to the fire protection requirements, the wall of the power distribution room is not allowed to be provided with holes randomly, so that traditional wall-typed ventilators are not allowed to be installed on the wall of the power distribution room. According to the utility model, valve plates (2) of a fireproof valve and impellers (6) of the ventilator are installed in a same housing (1) to form a ventilator with a fireproof function and also to realize the functions of air exchanging and fire protection. At ordinary times the valve plates are open, and when the impellers rotate for changing air and the air temperature exceeds 70 DEG C, a motion mechanism shuts off the valve plates and meanwhile disconnects a power supply contact to stop air changing and to prevent the diffusion of fire.
Description
Technical field
The mentioned ventilation fan of the utility model is mainly used in the little power distribution station of public building or the ventilation of the cubicle of fire protection requirement is arranged.The installation of ventilation fan is the part of ventilating engineering in the public building installing engineering.Because of the installation of punching of relating to that fire prevention cuts off and fire-closing valve, also be the part that the fire protection engineering acceptance requirement is arranged.
Background technique
By the requirement of fire regulation, the wall between the small distribution of public building should be the second class fire-wall at least.Do not allow careless opening holes on the fire-wall or pass through airduct, must install fire-closing valve in the time of need passing through airduct on airduct, fire-closing valve should be less than 200mm from the spacing of fire-wall, and the metal airduct short tube wall thickness of passing fire wall should be less than 0.6mm.
By above fire protection requirement, just do not allow on the wall between small distribution, directly to install common small-sized wall type ventilation fan, because common ventilation fan must punch on wall, when taking place, fire can't shut down and cut off the hole again, can cause the diffusion of fire.A lot of switches and instrument heat radiation are arranged between most small distributions, come release heat essential again in the mode of ventilation.Traditional way is to be the special airduct ventilation system of power distribution station design and installation.Ventilation system comprises airduct, suspension and support, air port, pipe type ventilator, fire-protection valve of independent design etc.And between the little small distribution of ventilation, special Design of Ventilation System installation workload is big, investment is big, needs to take up room in power distribution station and the furred ceiling, and ventilator power consumption is big, the maintenance cost height.
Summary of the invention
Main feature of the present invention is that the function with common wall type ventilation fan and fire-closing valve is integrated, and makes the ventilation fan of band fire-proof function, to realize ventilation and frpf function simultaneously.Cut off the electricity supply in the time of the action of ventilation fan fire prevention valve block, avoid the fire diffusion.The main thought of invention is that support and the impeller with ventilation fan is installed in the frpf housing simultaneously, and fire-closing valve suitably reduces the valve block width, and valve block is installed in an end of housing, and the other end slot milling is installed impeller.Another characteristics are to increase a power contact in the knee springing mechanism of valve block, and throw off the contact in the time of mechanism action, stop to the motor power supply, and impeller stops the rotation.Main innovation of the present invention is that the valve block with the impeller of ventilation fan and fire-closing valve is installed in the same shell, and what can have a style of one's own is installed on the wall, and when the temp-sensing device action of fire-closing valve, throws off the power contact of ventilation fan.
The ventilation fan that can completely cut off the hole during this fire automatically and shut down causes the drawback of fire diffusion easily when having avoided common ventilation fan fire.Compare special airduct ventilation system minimizing the design and installation workload, saved the space in power distribution station and the furred ceiling, also reduced the power consumption of ventilator.
Description of drawings
Below in conjunction with accompanying drawing and installation example the utility model is described.
Fig. 1 is the structural representation of fire-proof ventilation fan.
1. housing 2. valve blocks 3. fusible metals 4. actuating mechanisms 5. supports 6. impellers 7. motors 8. protective nets
Fig. 2 is the installation diagram of exposed type fire prevention ventilation fan.
9. the furred ceiling in fire-proof ventilation fan 10. bodies of wall 11. floors 12. aisle
Fig. 3 is the installation diagram of concealed fire prevention ventilation fan.
9. the furred ceiling in fire-proof ventilation fan 10. bodies of wall 11. floors 12. aisle
Fig. 4 is the mounting plane figure of ventilation fan.
9. fire-proof ventilation fan 13. fire prevention air ports
Embodiment
In the structural representation of Fig. 1, fire-closing valve and ventilation fan are installed in the same housing [1] jointly, the actuating mechanism [4], support [5], impeller [6] and the motor [7] that mainly contain valve block [2] in the housing [1], contain fusible metal [3] are formed, and the outside of impeller is equipped with protective net [8].For the fire prevention ventilation fan of exposed type, the valve block of fire-closing valve is installed in the front portion of ventilation fan, and air-flow is earlier by impeller, after pass through valve block.For concealed fire prevention ventilation fan, the valve block of fire-closing valve is installed in the rear portion of ventilation fan, and air-flow is earlier by valve block, after pass through impeller.As shown in Figure 4, fire-proof ventilation fan [9] discharges high temperature air in the power distribution station, and power distribution station outside relatively forms negative pressure.Supplemental air flow enters power distribution station naturally by the fire prevention air port [13] of opposite side bypass.When the ventilation fan motor need overhaul or change, can easily impeller and motor be taken off from support, the housing reservation is installed on the wall, keeps the function of fire-closing valve.The nominal air delivery of the ventilation fan of different model is from 150m
3/ h is to 500m
3/ h does not wait.The shell length of ventilation fan is about about 200mm, and sectional dimension does not wait from 180mm * 180mm to 480mm * 480mm.Box out size does not on the wall wait from 200mm * 200mm to 500mm * 500mm.
When ventilation fan is in opening state at ordinary times, the impeller rotation, valve block is in opening state, and the high temperature air in the power distribution station is discharged.When fire takes place, when the temperature of outgoing air of power distribution station surpasses 70 degrees centigrade of the fusing points of fusible metal on the fire-closing valve, the closing mechanism device action of fire-closing valve, valve block is closed, and power contact is thrown off simultaneously, and impeller shuts down, and has realized preventing the function of fire diffusion.
Claims (2)
1. the fire-proof ventilation fan is characterized in that the impeller of ventilation fan and the valve block of fire-closing valve are installed in the same shell, and what can have a style of one's own is installed on the wall.
2. fire-proof ventilation fan according to claim 1 is characterized in that throwing off the power contact of ventilation fan when the temp-sensing device of fire-closing valve moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020265558XU CN202023745U (en) | 2010-07-21 | 2010-07-21 | Fireproof ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020265558XU CN202023745U (en) | 2010-07-21 | 2010-07-21 | Fireproof ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023745U true CN202023745U (en) | 2011-11-02 |
Family
ID=44848696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020265558XU Expired - Fee Related CN202023745U (en) | 2010-07-21 | 2010-07-21 | Fireproof ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184276A (en) * | 2018-11-06 | 2019-01-11 | 中航长沙设计研究院有限公司 | Integrated booster fan room |
-
2010
- 2010-07-21 CN CN201020265558XU patent/CN202023745U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184276A (en) * | 2018-11-06 | 2019-01-11 | 中航长沙设计研究院有限公司 | Integrated booster fan room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20120721 |