CN105402425A - Smoke exhaust and ventilation fire resisting damper with high sealing performance - Google Patents
Smoke exhaust and ventilation fire resisting damper with high sealing performance Download PDFInfo
- Publication number
- CN105402425A CN105402425A CN201510866401.XA CN201510866401A CN105402425A CN 105402425 A CN105402425 A CN 105402425A CN 201510866401 A CN201510866401 A CN 201510866401A CN 105402425 A CN105402425 A CN 105402425A
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- Prior art keywords
- blade
- diaphragm seal
- fixed
- edge
- groove
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses a smoke exhaust and ventilation fire resisting damper with high sealing performance. The smoke exhaust and ventilation fire resisting damper comprises a damper body; an executing mechanism is arranged on the damper body, and is connected with a temperature fuse; a plurality of blade fixing grooves are arranged on both the left inside wall and the right inside wall in the damper body; blade shaft sleeves are arranged on the blade fixing grooves; blade shafts are arranged in the two corresponding blade shaft sleeves in an inserting and sleeving manner; blades are arranged on the blade shafts, and are connected through a blade connecting rod; weather strips are fixed on the top surface and the bottom surface in the damper body, and are long strips bent to form obtuse angles; one side of each obtuse angle is fixed on the top surface or the bottom surface in the damper body, and the other side of each obtuse angle is a bevel side; and upper grooves protruding backwards are formed in the upper parts of the blades. After heated, side sealing plates, middle side sealing plates and arc-shaped sealing plates are clung to the blades, so that the sealing effect of the fire resisting damper is improved greatly, and the air leakage rate is reduced.
Description
Technical field:
The present invention relates to Fan Equipment technical field, relate to a kind of high sealing smoke-discharging and ventilating fire-closing valve in particular.
Background technique:
At present, general fire-protection valve is all by being welded after shaping operation by Q235 galvanized iron sheet.During production, technique requires except the planeness of iron plate is good after shaping operation problem, also there is the problem easily producing thermal distortion because of welding processing, thus bring very large difficulty of processing to the workman making product, flatness cannot reach requirement except existing.And can distortion be produced after being heated, can make to produce larger gap between blade and valve body after producing distortion, thus cause the inleakage of fire-protection valve can not to be up to state standards the standard of GB15930-2007.
And existing fire-closing valve adopts is do not fire bar seal by being fixed with asbestos etc. on valve body madial wall, but it cannot be guaranteed due to the gap between resiliently deformable and blade, and cannot regulate according to temperature.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, a kind of high sealing smoke-discharging and ventilating fire-closing valve is provided, it is close to blade by the edge diaphragm seal be provided with, middle edge diaphragm seal and arc diaphragm seal in the situation of being heated, thus greatly improve its sealing effect, reduce inleakage, make it meet NBS completely.
The scheme that the present invention solve the technical problem is:
A kind of high sealing smoke-discharging and ventilating fire-closing valve, comprise valve body, described valve body is provided with actuator, described actuator is connected with temperature fuse, left inside sidewall in described valve body and right inside sidewall are provided with multiple blade fixed groove, left inside sidewall or the right inside sidewall of the valve body at described blade fixed groove place are provided with blade axle sleeve, described sharf sleeve is in two blade axle sleeves of correspondence, described sharf is provided with blade, all blades are connected by blade connecting rod, end face in described valve body and bottom surface are fixed with weather strip, described weather strip is be bent to obtuse angle rectangular, the limit at described obtuse angle is fixed on end face in valve body or bottom surface, another limit is knuckle limit, the upper edge of described blade has upper groove protruding backward, the lower edge of blade has low groove protruding forward, corresponding upper groove or the low groove of knuckle limit and blade match, knuckle limit is fixed with edge diaphragm seal, edge diaphragm seal to be in corresponding upper groove or low groove and to be close on the madial wall of upper groove or low groove,
Middle edge diaphragm seal is clamped with between the edge of low groove of blade of top and the edge of the upper groove of the blade of below.
The edge diaphragm seal sleeve that the knuckle limit of the weather strip of the end face in described valve body is fixed with is in the upper groove of the blade of the top and be pressed against on the madial wall of upper groove.
The edge diaphragm seal sleeve that the knuckle limit of the weather strip of the bottom surface in described valve body is fixed with is in the low groove of the blade of bottom and be pressed against on the madial wall of low groove.
Except the blade of the top, the top of rest blade is all fixed with middle edge diaphragm seal, middle edge diaphragm seal sleeve in the upper groove of blade, between the edge of low groove of blade that middle edge diaphragm seal is clamped in top and the edge of the upper groove of the blade of below.
Described sharf is fixed with cursor, and cursor is hinged on blade connecting rod.
Two, the left and right madial wall of described valve body is fixed with joint, between the corresponding left inside sidewall of joint and valve body or right inside sidewall, there is connecting groove, blade axle sleeve to be in connecting groove and to be weldingly fixed in the side wall of joint, the end of sharf through the blade fixed groove that the side wall of joint has and sleeve in the blade axle sleeve of correspondence.
The side wall of described joint is welded with arc diaphragm seal in the left end face of blade or the wall of its right end face, and the spacing between the left end face of arc diaphragm seal and blade or its right end face is 0.2mm to 0.5mm.
The front and back edge of described arc diaphragm seal has bending part, and bending part is weldingly fixed on the front and back wall of joint near side wall place, and arc diaphragm seal covers side wall, and the spacing between the middle part of arc diaphragm seal and side wall is 0.1mm to 0.3mm.
Described edge diaphragm seal, middle edge diaphragm seal and arc diaphragm seal are stainless steel spring sheet, and the thickness of edge diaphragm seal, middle edge diaphragm seal and arc diaphragm seal is 0.2mm to 0.3mm.
Described actuator is connected with the end of one of them sharf; The left side wall of described valve body or the outer wall of right side wall are fixed with main contiguous block, main contiguous block is fixed with damping spring, one end of damping spring is fixed with swing part, and swing part is fixed therein a sharf and stretches out on one end of valve body.
Outstanding effect of the present invention is:
Compared with prior art, it is close to blade by the edge diaphragm seal be provided with, middle edge diaphragm seal and arc diaphragm seal in the situation of being heated, thus greatly improves its sealing effect, reduces inleakage, makes it meet NBS completely.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A sectional view of the present invention;
Fig. 3 is the partial structurtes schematic diagram between arc diaphragm seal of the present invention and sharf;
Fig. 4 is left view of the present invention;
Fig. 5 is right elevation of the present invention;
Fig. 6 is the partial enlarged drawing of Fig. 1.
Embodiment:
Embodiment, see as shown in Figures 1 to 6, a kind of high sealing smoke-discharging and ventilating fire-closing valve, comprise valve body 10, described valve body 10 is provided with actuator 20, described actuator 20 is connected with temperature fuse 30, left inside sidewall in described valve body 10 and right inside sidewall are provided with multiple blade fixed groove 11, left inside sidewall or the right inside sidewall of described blade fixed groove 11 place valve body 10 are provided with blade axle sleeve 12, described sharf 13 sleeve is in two blade axle sleeves 12 of correspondence, described sharf 13 is provided with blade 14, all blades 14 are connected by blade connecting rod 15, end face in described valve body 10 and bottom surface are fixed with weather strip 16, described weather strip 16 is be bent to obtuse angle rectangular, the limit at described obtuse angle is fixed on end face in valve body 10 or bottom surface, another limit is knuckle limit 161, the upper edge of described blade 14 has upper groove 141 protruding backward, the lower edge of blade 14 has low groove 142 protruding forward, corresponding upper groove 141 or the low groove 142 of knuckle limit 161 and blade 14 match, namely knuckle limit 161 is pressed against on the upper groove 141 of the correspondence of blade 14 or the sidewall of low groove 142, knuckle limit 161 is fixed with edge diaphragm seal 1, edge diaphragm seal 1 to be in corresponding upper groove 141 or low groove 142 and to be close on the madial wall of upper groove 141 or low groove 142,
Middle edge diaphragm seal 2 is clamped with between the edge of low groove 142 of blade 14 of top and the edge of the upper groove 141 of the blade 14 of below.
Further, edge diaphragm seal 1 sleeve that the knuckle limit 161 of the weather strip 16 of the end face in described valve body 10 is fixed with is in the upper groove 141 of the blade 14 of the top and be pressed against on the madial wall of upper groove 141.
Further, edge diaphragm seal 1 sleeve that the knuckle limit 161 of the weather strip 16 of the bottom surface in described valve body 10 is fixed with is in the low groove 142 of the blade 14 of bottom and be pressed against on the madial wall of low groove 142.
Further, except the blade 14 of the top, the top of rest blade 14 is all fixed with middle edge diaphragm seal 2, middle edge diaphragm seal 2 sleeve in the upper groove 141 of blade 14, between the edge of low groove 142 of blade 14 that middle edge diaphragm seal 2 is clamped in top and the edge of the upper groove 141 of the blade 14 of below.
Further, described sharf 13 is fixed with cursor 131, and cursor 131 is hinged on blade connecting rod 15.
Further, two, the left and right madial wall of described valve body 10 is fixed with joint 17, between the corresponding left inside sidewall of joint 17 and valve body 10 or right inside sidewall, there is connecting groove 18, blade axle sleeve 12 to be in connecting groove 18 and to be weldingly fixed in the side wall 171 of joint 17, the end of sharf 13 through the blade fixed groove 11 that the side wall 171 of joint 17 has and sleeve in the blade axle sleeve 12 of correspondence.
Further, the side wall 171 of described joint 17 is welded with arc diaphragm seal 3 in the left end face of blade 14 or the wall of its right end face, sharf 13 is through arc diaphragm seal 3, and the spacing between the left end face of arc diaphragm seal 3 and blade 14 or its right end face is 0.2mm to 0.5mm.
Further, the front and back edge of described arc diaphragm seal 3 has bending part 31, bending part 31 is weldingly fixed on the front and back wall of joint 17 near side wall 171 place, arc diaphragm seal 3 covers side wall 171, spacing between the middle part of arc diaphragm seal 3 and side wall 171 is 0.1mm to 0.3mm, make arc diaphragm seal 3 have certain elasticity, ensure that it can normally expand with heat and contract with cold.
Further, described edge diaphragm seal 1, middle edge diaphragm seal 2 and arc diaphragm seal 3 are stainless steel spring sheet, and the thickness of edge diaphragm seal 1, middle edge diaphragm seal 2 and arc diaphragm seal 3 is 0.2mm to 0.3mm.
Further, described actuator 20 is connected with the end of one of them sharf 13; The left side wall of described valve body 10 or the outer wall of right side wall are fixed with main contiguous block 19, main contiguous block 19 is fixed with damping spring 191, one end of damping spring 191 is fixed with swing part 192, and swing part 192 is fixed therein a sharf 13 and stretches out on one end of valve body 10.
The present embodiment is arranged on after below air draft gas exhaust duct or ventilator, when after the accidents such as breaking out of fire, carried out by actuator 20 (actuator 20 used in the present embodiment is the product that existing market can buy), after all blades 14 are closed, because the temperature below fire-closing valve constantly raises, make edge diaphragm seal 1, the all expanded by heating distortion of middle edge diaphragm seal 2 and arc diaphragm seal 3, make edge diaphragm seal 1, blade 14 is all close to by middle edge diaphragm seal 2 and arc diaphragm seal 3, namely the middle part outer wall of arc diaphragm seal 3 is close on the both sides end face of blade 14, and edge diaphragm seal 1 makes blade 14 and weather strip 16 phase seal, by the sealing of middle part edge diaphragm seal 2 phase between adjacent two blades 14.
Because the edge diaphragm seal 1 used in the present embodiment, middle edge diaphragm seal 2 and arc diaphragm seal 3 are stainless steel spring sheet, it can produce corresponding dilatancy according to temperature when being heated, and thickness is 0.2mm, thus can be good at being close on blade 14, and heating temperature is higher, time is more of a specified duration, it is larger that edge diaphragm seal 1, middle edge diaphragm seal 2 and arc diaphragm seal 3 are close to degree on blade 14, tightr, better effects if, thus greatly reducing its inleakage, final its using effect of raising, meets NBS.
Finally; above mode of execution is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification, therefore all equivalent technological schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a high sealing smoke-discharging and ventilating fire-closing valve, comprise valve body (10), described valve body (10) is provided with actuator (20), described actuator (20) is connected with temperature fuse (30), left inside sidewall in described valve body (10) and right inside sidewall are provided with multiple blade fixed groove (11), left inside sidewall or the right inside sidewall of described blade fixed groove (11) place's valve body (10) are provided with blade axle sleeve (12), described sharf (13) sleeve is in two blade axle sleeves (12) of correspondence, described sharf (13) is provided with blade (14), all blades (14) are connected by blade connecting rod (15), end face in described valve body (10) and bottom surface are fixed with weather strip (16), it is characterized in that: described weather strip (16) is be bent to obtuse angle rectangular, the limit at described obtuse angle is fixed on end face in valve body (10) or bottom surface, another limit is knuckle limit (161), the upper edge of described blade (14) has upper groove (141) protruding backward, the lower edge of blade (14) has low groove (142) protruding forward, corresponding upper groove (141) or the low groove (142) of knuckle limit (161) and blade (14) match, knuckle limit (161) is fixed with edge diaphragm seal (1), edge diaphragm seal (1) to be in corresponding upper groove (141) or low groove (142) and to be close on the madial wall of upper groove (141) or low groove (142),
Middle edge diaphragm seal (2) is clamped with between the edge of low groove (142) of blade (14) of top and the edge of the upper groove (141) of the blade (14) of below.
2. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 1, is characterized in that: edge diaphragm seal (1) sleeve that the knuckle limit (161) of the weather strip (16) of the end face in described valve body (10) is fixed with is in the upper groove (141) of the blade (14) of the top and be pressed against on the madial wall of upper groove (141).
3. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 1, is characterized in that: edge diaphragm seal (1) sleeve that the knuckle limit (161) of the weather strip (16) of the bottom surface in described valve body (10) is fixed with is in the low groove (142) of the blade (14) of bottom and be pressed against on the madial wall of low groove (142).
4. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 3, it is characterized in that: except the blade (14) of the top, the top of rest blade (14) is all fixed with middle edge diaphragm seal (2), middle edge diaphragm seal (2) sleeve in the upper groove (141) of blade (14), between the edge of low groove (142) of blade (14) that middle edge diaphragm seal (2) is clamped in top and the edge of the upper groove (141) of the blade (14) of below.
5. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 1, it is characterized in that: described sharf (13) is fixed with cursor (131), cursor (131) is hinged on blade connecting rod (15).
6. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 1, it is characterized in that: two, the left and right madial wall of described valve body (10) is fixed with joint (17), between the corresponding left inside sidewall of joint (17) and valve body (10) or right inside sidewall, there is connecting groove (18), blade axle sleeve (12) to be in connecting groove (18) and to be weldingly fixed in the side wall (171) of joint (17), the end of sharf (13) through the blade fixed groove (11) that the side wall (171) of joint (17) has and sleeve in the blade axle sleeve (12) of correspondence.
7. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 6, it is characterized in that: the side wall (171) of described joint (17) is welded with arc diaphragm seal (3) in the left end face of blade (14) or the wall of its right end face, the spacing between the left end face of arc diaphragm seal (3) and blade (14) or its right end face is 0.2mm to 0.5mm.
8. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 7, it is characterized in that: the front and back edge of described arc diaphragm seal (3) has bending part (31), bending part (31) is weldingly fixed on the front and back wall of joint (17) near side wall (171) place, arc diaphragm seal (3) covers side wall (171), and the spacing between the middle part of arc diaphragm seal (3) and side wall (171) is 0.1mm to 0.3mm.
9. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 7, it is characterized in that: described edge diaphragm seal (1), middle edge diaphragm seal (2) and arc diaphragm seal (3) are stainless steel spring sheet, the thickness of edge diaphragm seal (1), middle edge diaphragm seal (2) and arc diaphragm seal (3) is 0.2mm to 0.3mm.
10. a kind of high sealing smoke-discharging and ventilating fire-closing valve according to claim 1, is characterized in that: described actuator (20) is connected with the end of one of them sharf (13); The left side wall of described valve body (10) or the outer wall of right side wall are fixed with main contiguous block (19), main contiguous block (19) is fixed with damping spring (191), one end of damping spring (191) is fixed with swing part (192), and swing part (192) is fixed therein a sharf (13) and stretches out on one end of valve body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510866401.XA CN105402425B (en) | 2015-11-30 | 2015-11-30 | A kind of high sealing smoke-discharging and ventilating fire resisting damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510866401.XA CN105402425B (en) | 2015-11-30 | 2015-11-30 | A kind of high sealing smoke-discharging and ventilating fire resisting damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402425A true CN105402425A (en) | 2016-03-16 |
| CN105402425B CN105402425B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510866401.XA Active CN105402425B (en) | 2015-11-30 | 2015-11-30 | A kind of high sealing smoke-discharging and ventilating fire resisting damper |
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| Country | Link |
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| CN (1) | CN105402425B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321917A (en) * | 2016-10-09 | 2017-01-11 | 恒爱节能环控设备有限公司 | Smoke exhaust fireproof valve |
| CN110185807A (en) * | 2019-06-11 | 2019-08-30 | 点夺机电工程江苏有限公司 | A kind of side's valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518489B (en) * | 2018-07-02 | 2019-05-24 | 铜陵祥云消防科技有限责任公司 | A kind of fire-fighting smoke exhaust fire damper being easily installed |
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|---|---|---|---|---|
| CN2216557Y (en) * | 1994-12-23 | 1996-01-03 | 扬州市中大工程设备制造有限公司 | Automatic resetting fireproof tuyer |
| KR20100034739A (en) * | 2010-03-05 | 2010-04-01 | 주식회사 삼우파워시스템 | High pressure, high themperature, h-beam type tandem damper structure for isolation |
| CN202002279U (en) * | 2011-03-23 | 2011-10-05 | 浙江志江风机有限公司 | Remote control multi-vane smoke exhausting and air supplying outlet |
| CN202001630U (en) * | 2010-12-24 | 2011-10-05 | 江苏阿波罗空调净化设备制造有限公司 | Leakage prevention device used for blade end and support of fire resisting damper |
| 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 |
| CN204628684U (en) * | 2015-04-27 | 2015-09-09 | 深圳市中天欧信机电设备有限公司 | Be applied to the high-air-tightness fire-closing valve of ventilation system and purging system |
| CN205446841U (en) * | 2015-11-30 | 2016-08-10 | 浙江聚英风机工业有限公司 | High sealed fire prevention valve that ventilates of discharging fume |
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2015
- 2015-11-30 CN CN201510866401.XA patent/CN105402425B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2216557Y (en) * | 1994-12-23 | 1996-01-03 | 扬州市中大工程设备制造有限公司 | Automatic resetting fireproof tuyer |
| KR20100034739A (en) * | 2010-03-05 | 2010-04-01 | 주식회사 삼우파워시스템 | High pressure, high themperature, h-beam type tandem damper structure for isolation |
| CN202001630U (en) * | 2010-12-24 | 2011-10-05 | 江苏阿波罗空调净化设备制造有限公司 | Leakage prevention device used for blade end and support of fire resisting damper |
| CN202002279U (en) * | 2011-03-23 | 2011-10-05 | 浙江志江风机有限公司 | Remote control multi-vane smoke exhausting and air supplying outlet |
| 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 |
| CN204628684U (en) * | 2015-04-27 | 2015-09-09 | 深圳市中天欧信机电设备有限公司 | Be applied to the high-air-tightness fire-closing valve of ventilation system and purging system |
| CN205446841U (en) * | 2015-11-30 | 2016-08-10 | 浙江聚英风机工业有限公司 | High sealed fire prevention valve that ventilates of discharging fume |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321917A (en) * | 2016-10-09 | 2017-01-11 | 恒爱节能环控设备有限公司 | Smoke exhaust fireproof valve |
| CN110185807A (en) * | 2019-06-11 | 2019-08-30 | 点夺机电工程江苏有限公司 | A kind of side's valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402425B (en) | 2017-12-29 |
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