CN105422942A - Multi-vane high-sealing smoke exhausting ventilation fireproof valve - Google Patents

Multi-vane high-sealing smoke exhausting ventilation fireproof valve Download PDF

Info

Publication number
CN105422942A
CN105422942A CN201510860210.2A CN201510860210A CN105422942A CN 105422942 A CN105422942 A CN 105422942A CN 201510860210 A CN201510860210 A CN 201510860210A CN 105422942 A CN105422942 A CN 105422942A
Authority
CN
China
Prior art keywords
blade
diaphragm seal
fixed
valve body
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510860210.2A
Other languages
Chinese (zh)
Other versions
CN105422942B (en
Inventor
蒋宁波
石兴祥
沈炳校
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JUYING FAN INDUSTRY Co Ltd
Original Assignee
ZHEJIANG JUYING FAN INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG JUYING FAN INDUSTRY Co Ltd filed Critical ZHEJIANG JUYING FAN INDUSTRY Co Ltd
Priority to CN201510860210.2A priority Critical patent/CN105422942B/en
Publication of CN105422942A publication Critical patent/CN105422942A/en
Application granted granted Critical
Publication of CN105422942B publication Critical patent/CN105422942B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention discloses a multi-vane high-sealing smoke exhausting ventilation fireproof valve which comprises a valve body. An execution mechanism is arranged on the valve body and connected with a temperature fuse. A vertical separating and fixing board is fixed to the middle of the valve body. Multiple corresponding vane fixing grooves are formed in the left inner side wall, the right inner side wall and the vertical separating and fixing board in the valve body. Vane shaft sleeves are arranged at the portion, at the vane fixing grooves, of wall boards. Each vane shaft is inserted in two corresponding vane shaft sleeves in a sleeved manner and provided with two vanes which are located on the two sides of the vertical separating and fixing board respectively. All the vanes on the left side of the vertical separating and fixing board and all the vanes on the right side of the vertical separating and fixing board are connected through vane connecting rods. Wind stop strips are fixed to the top face and the bottom face in the valve body and are long strips bent at an obtuse angle. The wind stop strips are tightly attached to the vanes under the condition that edge sealing sheets, middle edge sealing sheets and arc-shaped sealing sheets are heated, so that the sealing effect of the wind stop strips is improved, and the wind leakage amount is reduced.

Description

A kind of multiple-blade high sealing smoke-discharging and ventilating fire-closing valve
Technical field:
The present invention relates to Fan Equipment technical field, relate to a kind of multiple-blade 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 multiple-blade 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 multiple-blade 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, the middle part of described valve body is fixed with vertically separates fixed plate, left inside sidewall in valve body, right inside sidewall and vertically separation fixed plate are equipped with multiple corresponding blade fixed groove, the wallboard at described blade fixed groove place is provided with blade axle sleeve, described sharf sleeve is in two blade axle sleeves of correspondence, each sharf is provided with two blades, these two blades are in the both sides of vertically separating fixed plate respectively, all blades in the left side of vertical separation fixed plate are all connected by blade connecting rod with all blades on right side, 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 and the vertical left and right sides wall separating fixed plate are all fixed with joint, the joint of correspondence has connecting groove with between the corresponding left inside sidewall of valve body or right inside sidewall, corresponding joint also has connecting groove with vertically separating between the corresponding left side wall of fixed plate or right side wall, blade axle sleeve to be in connecting groove and to be weldingly fixed in the side wall of joint, 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;
Fig. 7 is the partial enlarged drawing of another part of Fig. 1;
Fig. 8 is the partial structurtes schematic diagram between vertical separation fixed plate of the present invention and sharf.
Embodiment:
Embodiment, see as shown in Figures 1 to 8, a kind of multiple-blade 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, the middle part of described valve body 10 is fixed with vertically separates fixed plate 40, left inside sidewall in valve body 10, right inside sidewall and vertically separation fixed plate 40 are equipped with multiple corresponding blade fixed groove 11, the wallboard at described blade fixed groove 11 place is provided with blade axle sleeve 12, described sharf 13 sleeve is in two blade axle sleeves 12 of correspondence, each sharf 13 is provided with two blades 14, these two blades 14 are in the both sides of vertically separating fixed plate 40 respectively, all blades 14 in the left side of vertical separation fixed plate 40 are all connected by blade connecting rod 15 with all blades 14 on right side, 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, the corresponding upper groove 141 of knuckle limit 161 and blade 14 or low groove 142 i.e. knuckle limit 161 of matching is pressed against on the sidewall of upper groove 141 or low groove 142, (its means of fixation is knuckle limit 161 to be fixed with edge diaphragm seal 1, knuckle limit 161 is welded and fixed fixing accessory plate, one side sleeve of edge diaphragm seal 1 is between fixing accessory plate and knuckle limit 161 and be welded and fixed), 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, and (its middle edge diaphragm seal 2 means of fixation is, fixing accessory plate is welded and fixed near upper groove 141 place on the top of blade 14, one side sleeve of middle edge diaphragm seal 2 is between fixing accessory plate and blade 14 and be welded and fixed), 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 and the vertical left and right sides wall separating fixed plate 40 are all fixed with joint 17, the joint 17 of correspondence has connecting groove 18 with between the corresponding left inside sidewall of valve body 10 or right inside sidewall, corresponding joint 17 also has connecting groove 18 with vertically separating between the corresponding left side wall of fixed plate 40 or right side wall, blade axle sleeve 12 to be in connecting groove 18 and to be weldingly fixed in the side wall 171 of joint 17, sharf 13 through the blade fixed groove 11 that the side wall 171 of joint 17 has and the blade fixed groove 11 of vertically separating fixed plate 40 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, and the spacing between the middle part of arc diaphragm seal 3 and side wall 171 is 0.1mm to 0.3mm.
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, and thickness is 0.2mm, it can produce corresponding dilatancy according to temperature when being heated, 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 multiple-blade 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), it is characterized in that: the middle part of described valve body (10) is fixed with vertically separates fixed plate (40), left inside sidewall in valve body (10), right inside sidewall and vertically separate on fixed plate (40) and be equipped with multiple corresponding blade fixed groove (11), the wallboard at described blade fixed groove (11) place is provided with blade axle sleeve (12), described sharf (13) sleeve is in two blade axle sleeves (12) of correspondence, each sharf (13) is provided with two blades (14), these two blades (14) are in the both sides of vertically separating fixed plate (40) respectively, all blades (14) in the left side of vertical separation fixed plate (40) are all connected by blade connecting rod (15) with all blades (14) on right side, 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, 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 multiple-blade 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 multiple-blade 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 multiple-blade 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 multiple-blade 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 multiple-blade 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) and vertically separate fixed plate (40) left and right sides wall on be all fixed with joint (17), the joint (17) of correspondence has connecting groove (18) with between the corresponding left inside sidewall of valve body (10) or right inside sidewall, corresponding joint (17) also has connecting groove (18) with vertically separating between the corresponding left side wall of fixed plate (40) or right side wall, blade axle sleeve (12) to be in connecting groove (18) and to be weldingly fixed in the side wall (171) of joint (17), 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 multiple-blade 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 multiple-blade 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 multiple-blade 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 multiple-blade 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).
CN201510860210.2A 2015-11-30 2015-11-30 A kind of multiple-blade high sealing smoke-discharging and ventilating fire resisting damper Active CN105422942B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510860210.2A CN105422942B (en) 2015-11-30 2015-11-30 A kind of multiple-blade high sealing smoke-discharging and ventilating fire resisting damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510860210.2A CN105422942B (en) 2015-11-30 2015-11-30 A kind of multiple-blade high sealing smoke-discharging and ventilating fire resisting damper

Publications (2)

Publication Number Publication Date
CN105422942A true CN105422942A (en) 2016-03-23
CN105422942B CN105422942B (en) 2018-10-16

Family

ID=55501374

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510860210.2A Active CN105422942B (en) 2015-11-30 2015-11-30 A kind of multiple-blade high sealing smoke-discharging and ventilating fire resisting damper

Country Status (1)

Country Link
CN (1) CN105422942B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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
CN111735313A (en) * 2020-06-30 2020-10-02 中冶华天工程技术有限公司 Novel sealing device of water sealing ring cooler
US12044004B2 (en) 2020-01-17 2024-07-23 Price Holyoake (NZ) Limited Fire damper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530783A (en) * 1969-01-13 1970-09-29 Honeywell Inc Damper apparatus and mounting clip to hold an inflatable sealing member
US6019679A (en) * 1998-11-09 2000-02-01 Lloyd Industries Fire and smoke damper
CN2607153Y (en) * 2003-04-30 2004-03-24 江苏天宝空调通风工程有限公司 Fire-prevention valve
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
CN205298721U (en) * 2015-11-30 2016-06-08 浙江聚英风机工业有限公司 High sealed fire prevention valve that ventilates of discharging fume of multiple -blade

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530783A (en) * 1969-01-13 1970-09-29 Honeywell Inc Damper apparatus and mounting clip to hold an inflatable sealing member
US6019679A (en) * 1998-11-09 2000-02-01 Lloyd Industries Fire and smoke damper
CN2607153Y (en) * 2003-04-30 2004-03-24 江苏天宝空调通风工程有限公司 Fire-prevention valve
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
CN205298721U (en) * 2015-11-30 2016-06-08 浙江聚英风机工业有限公司 High sealed fire prevention valve that ventilates of discharging fume of multiple -blade

Cited By (3)

* Cited by examiner, † Cited by third party
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
US12044004B2 (en) 2020-01-17 2024-07-23 Price Holyoake (NZ) Limited Fire damper
CN111735313A (en) * 2020-06-30 2020-10-02 中冶华天工程技术有限公司 Novel sealing device of water sealing ring cooler

Also Published As

Publication number Publication date
CN105422942B (en) 2018-10-16

Similar Documents

Publication Publication Date Title
CN105422942A (en) Multi-vane high-sealing smoke exhausting ventilation fireproof valve
CN204729704U (en) Fire-closing valve
CN105402425B (en) A kind of high sealing smoke-discharging and ventilating fire resisting damper
CN104456955A (en) Combustor structure of gas water heater and gas water heater
CN105422943A (en) Single-blade and high-sealing exhaust ventilation fireproof valve
CN105546131B (en) Fire-fighting ventilation shaft valve
CN205298721U (en) High sealed fire prevention valve that ventilates of discharging fume of multiple -blade
CN205446841U (en) High sealed fire prevention valve that ventilates of discharging fume
CN205278483U (en) Fire prevention, type of discharging fume valve with sealed elastic steel sheet
CN205278484U (en) High sealed fire prevention valve that ventilates of discharging fume of simple leaf piece
CN102730949A (en) Edge sealing method for vacuum glass
CN205877222U (en) Fire valve's seal structure
CN206830835U (en) Single blade seals smoke-discharging and ventilating fire resisting damper
CN204115529U (en) A kind of new steel structure tubular heat exchanger
CN207555919U (en) A kind of forced draft mouth frame package assembly
CN207877800U (en) A kind of supplementary heating type tempering furnace
CN207540006U (en) Indoor suspension air conditioner
CN207877801U (en) A kind of multichannel tempering furnace
CN204693829U (en) The chamber structure of gas heater and gas heater
CN205066123U (en) Split type filter structure
CN204796014U (en) Copper aluminium radiator
CN205119411U (en) Fire protection and smoke exhaust wind gap is from closing device
CN204386417U (en) A kind of fixed steel Rainproof louver window
CN205002295U (en) Vulcanization workshop with independent exhaust system
CN204808187U (en) Notebook computer heat abstractor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant