CN202001630U - Leakage prevention device used for blade end and support of fire resisting damper - Google Patents
Leakage prevention device used for blade end and support of fire resisting damper Download PDFInfo
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- CN202001630U CN202001630U CN2010206791780U CN201020679178U CN202001630U CN 202001630 U CN202001630 U CN 202001630U CN 2010206791780 U CN2010206791780 U CN 2010206791780U CN 201020679178 U CN201020679178 U CN 201020679178U CN 202001630 U CN202001630 U CN 202001630U
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- prevention device
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Abstract
The utility model discloses a leakage prevention device used for a blade end and a support of a fire resisting damper. A blade shaft (10) is fixed on a blade shaft support plate (4) by a shaft sleeve (11), and a spring piece (12) is arranged between the blade shaft (10) and the shaft sleeve (11). When the leakage prevention device works and blades are all opened, stainless spring pieces between the blades are in an original assembly state due to the self elasticity; and when the blades are all closed, the stainless steel spring pieces are compressed by the blades and are deformed forcibly to be close to the support plate, so that the air leakage can be avoided, the blank that I-level leakage grade does not exist in the national fire resisting damper can be filled, and the leakage prevention device can be widely applied to nuclear power engineering and other international or national building objects with high-standard fireproof grade requirement.
Description
Technical field
The utility model relates to the fire-protection valve device that a kind of building uses, the particularly a kind of blade termination of fire-closing valve and leakage preventer of bearing of being used for.
Background technique
In some important buildings, almost be equipped with Automatic fire a1arm system, need fire-closing valve be set at the response position of air conditioner and smoke control system.Fire-closing valve is installed on the specific position that fire protection requirement is arranged (fire barrier wall or floor) of the sending of ventilation and air conditioning system, return air pipeline, fire-closing valve is often opened at ordinary times, when breaking out of fire, it is when gas temperature reaches 70 ℃ in the pipeline that the interior air-flow of pipeline reaches controlled temperature, thermal link fusing, valve is closed under the effect of torsion spring power automatically.Can satisfy Fire stability and Fire integrity requirement within a certain period of time, play valve every the effect of cigarette back-fire relief.Behind the fire, change thermal link and reopen fire-closing valve.Existing fire-protection valve connects actuator by the blade type valve body, and what at present domestic fire-closing valve was carried out is GB15930-2007 " building ventilation and purging system fire-protection valve " standard.This regulation and stipulation, at ambient temperature, keep in fire-closing valve blade both sides under the gas-static difference of 300Pa ± 15Pa, and sometimes need fire-closing valve blade both sides to keep under the gas-static difference under the 1000Pa pressure reduction, the inleakage on its unit area (standard state) should be not more than 2.44m
3/ min.m
2This just needs to improve the sealing of fire-closing valve, finds that simultaneously the internal leakage of valve body is more serious, and the sealing that particularly outstanding is between blade termination and the bearing is not enough, the gap affects between them every the valve of cigarette back-fire relief effect.
The model utility content
The purpose of this utility model is the utility model proposes a kind of blade termination of the fire-closing valve that improves sealing, increases the service life and the leakage preventer of bearing.
The technological scheme that realizes the utility model purpose is: a kind of blade termination of fire-closing valve and leakage preventer of bearing of being used for, by blade type valve body and actuator, the blade type valve body comprises that external frame, connecting rod driver plate, described connecting rod driver plate link to each other with the sharf dunnage, airfoil fan and be arranged on and close the extension spring sheet on the valve, the airfoil fan axle penetrates on the shaft shoulder support that is fixed on the housing, actuator comprises main shaft and the auxilliary axle that matches with it, and described main shaft penetrates by collar bush and is fixed on the external frame; Sharf is fixed on the sharf dunnage by axle sleeve, is provided with spring sheet between described sharf and the axle sleeve.
The above-mentioned blade termination that is used for fire-closing valve and the leakage preventer of bearing, described spring sheet and described sharf dunnage are isometric.
The utlity model has following beneficial effect: when when work during the blade full open, interlobate stainless steel spring sheet, the elasticity because of own is in former installment state; When the blade full cut-off, blade compresses the stainless steel spring sheet, forces the spring sheet distortion, near dunnage.Thereby solved the above-mentioned problem of leaking out and filled up the blank that domestic fire-closing valve does not have I level leakage class, other concerning foreign affairs or domestic construction projects that can be widely used in nuclear power engineering and have the high standard fire resistance rating to require.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the structural representation of the utility model fire-closing valve.
Fig. 2 is the A-A sectional drawing of Fig. 1.
When Fig. 3 closes for fire-closing valve, spring sheet and blade structure schematic representation.
When Fig. 4 opens for fire-closing valve, spring sheet and blade structure schematic representation.
Fig. 5 is the structural representation of the utility model spring sheet.
Fig. 6 is the sectional view of Fig. 5.
Label is in the accompanying drawing:
Embodiment
See Fig. 1 to Fig. 4, a kind of blade termination of fire-closing valve and leakage preventer of bearing of being used for, by blade type valve body and actuator, the blade type valve body comprises external frame, 1, connecting rod driver plate 2, described connecting rod driver plate 2 link to each other with sharf dunnage 4, airfoil fan 5 and be arranged on and close extension spring sheet 6 on the valve, the airfoil fan axle penetrates on the shaft shoulder support 8 that is fixed on the housing, actuator comprises main shaft 7 and the auxilliary axle 9 that matches with it, and described main shaft 7 penetrates by collar bush 3 and is fixed on the external frame 1; Sharf 10 is fixed on the sharf dunnage 4 by axle sleeve 11, is provided with spring sheet 12 between described sharf 10 and the axle sleeve 11, and described spring sheet 12 and described sharf dunnage 4 are isometric.When work during blade 5 full open, interlobate stainless steel spring sheet 12, the elasticity because of own is in former installment state; When blade 5 full cut-offs, blade 5 compresses stainless steel spring sheet 12, forces the spring sheet distortion, near sharf dunnage 4.
Should be appreciated that specific embodiment described above only is used to explain the utility model, and be not used in qualification the utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.
Claims (2)
1. one kind is used for the blade termination of fire-closing valve and the leakage preventer of bearing, blade type valve body and actuator are arranged, the blade type valve body comprises that external frame (1), connecting rod driver plate (2), described connecting rod driver plate (2) link to each other with sharf dunnage (4), airfoil fan (5) and be arranged on and close extension spring sheet (6) on the valve, the airfoil fan axle penetrates on the shaft shoulder support (8) that is fixed on the housing, actuator comprises main shaft (7) and the auxilliary axle (9) that matches with it, and described main shaft (7) penetrates by collar bush (3) and is fixed on the external frame (1); It is characterized in that: sharf (10) is fixed on the sharf dunnage (4) by axle sleeve (11), is provided with spring sheet (12) between described sharf (10) and the axle sleeve (11).
2. the blade termination of fire-closing valve and the leakage preventer of bearing of being used for according to claim 1 is characterized in that: described spring sheet (12) is isometric with described sharf dunnage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791780U CN202001630U (en) | 2010-12-24 | 2010-12-24 | Leakage prevention device used for blade end and support of fire resisting damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791780U CN202001630U (en) | 2010-12-24 | 2010-12-24 | Leakage prevention device used for blade end and support of fire resisting damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001630U true CN202001630U (en) | 2011-10-05 |
Family
ID=44704371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206791780U Expired - Lifetime CN202001630U (en) | 2010-12-24 | 2010-12-24 | Leakage prevention device used for blade end and support of fire resisting damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001630U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392912A (en) * | 2011-11-09 | 2012-03-28 | 湖南鑫永生科技发展有限公司 | Smoke and fire damper |
| CN105202212A (en) * | 2015-10-27 | 2015-12-30 | 浙江省东阳市华东暖通设备有限公司 | High-temperature-resistant air duct valve |
| CN105402425A (en) * | 2015-11-30 | 2016-03-16 | 浙江聚英风机工业有限公司 | Smoke exhaust and ventilation fire resisting damper with high sealing performance |
| CN105422943A (en) * | 2015-11-30 | 2016-03-23 | 浙江聚英风机工业有限公司 | Single-blade and high-sealing exhaust ventilation fireproof valve |
| CN105422942A (en) * | 2015-11-30 | 2016-03-23 | 浙江聚英风机工业有限公司 | Multi-vane high-sealing smoke exhausting ventilation fireproof valve |
| CN105673904A (en) * | 2016-03-11 | 2016-06-15 | 江苏华东正大空调设备有限公司 | Fireproof smoke exhausting valve |
-
2010
- 2010-12-24 CN CN2010206791780U patent/CN202001630U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392912A (en) * | 2011-11-09 | 2012-03-28 | 湖南鑫永生科技发展有限公司 | Smoke and fire damper |
| CN102392912B (en) * | 2011-11-09 | 2013-10-02 | 湖南鑫永生科技发展有限公司 | Smoke and fire damper |
| CN105202212A (en) * | 2015-10-27 | 2015-12-30 | 浙江省东阳市华东暖通设备有限公司 | High-temperature-resistant air duct valve |
| CN105402425A (en) * | 2015-11-30 | 2016-03-16 | 浙江聚英风机工业有限公司 | Smoke exhaust and ventilation fire resisting damper with high sealing performance |
| CN105422943A (en) * | 2015-11-30 | 2016-03-23 | 浙江聚英风机工业有限公司 | Single-blade and high-sealing exhaust ventilation fireproof valve |
| CN105422942A (en) * | 2015-11-30 | 2016-03-23 | 浙江聚英风机工业有限公司 | Multi-vane high-sealing smoke exhausting ventilation fireproof valve |
| CN105402425B (en) * | 2015-11-30 | 2017-12-29 | 浙江聚英风机工业有限公司 | A kind of high sealing smoke-discharging and ventilating fire resisting damper |
| CN105673904A (en) * | 2016-03-11 | 2016-06-15 | 江苏华东正大空调设备有限公司 | Fireproof smoke exhausting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |