CN2573794Y - Frame type air sealed single layer blade baffle - Google Patents
Frame type air sealed single layer blade baffle Download PDFInfo
- Publication number
- CN2573794Y CN2573794Y CN 02264617 CN02264617U CN2573794Y CN 2573794 Y CN2573794 Y CN 2573794Y CN 02264617 CN02264617 CN 02264617 CN 02264617 U CN02264617 U CN 02264617U CN 2573794 Y CN2573794 Y CN 2573794Y
- Authority
- CN
- China
- Prior art keywords
- framework
- sealing air
- blade
- baffle door
- door according
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The utility model relates to an air sealed board shield door, which can be used for blocking flue gases or leading flue gases in a thermal power plant and other desulphurization systems. The utility model is characterized in that blades of the air sealed board shield door are a single layer; air sealed cavity bodies of the edge of the circumference of frames and multilayer U-shaped elastic seal sheets are matched with the blades of the air sealed board shield door, and a sealed cavity is formed; the cavity can be filled with high pressure sealing air. The louver type air sealed board shield door is composed of a plurality of blades. Each frame is provided with sealing air which can seal to the blades. The leakage of flue gases through gaps can be thoroughly blocked when the air sealed board shield door is closed. The utility model can completely achieve zero leakage to flue gases.
Description
Technical field
The utility model is to belong to a kind of being applied to stop a kind of device of flue gas or passage flue gas in thermal power plant and other desulphurization systems in flue, is exactly a kind of aeroseal baffle door specifically.
Background technique
Along with the day by day raising of countries in the world to environmental requirement, the desulphurization system of general power plant boiler flue gas has become the environmental practice that domestic and international power plant is forced to adopt.A vitals is arranged in the desulphurization system, it is exactly the baffle door in the desulphurization system flue, need three kinds of baffle doors in the one cover flue gas desulphurization system, be installed in ingress, outlet port and the bypass flue place of desulphurization system flue respectively, play the effect of isolated or admittance flue gas.
The amount of leakage of flue gas is zero technical requirements when all having the requirement baffle door to close to baffle door.Original baffle door is not owing to be provided with special sealing configuration, thereby can't realize that zero of flue gas reveals technical order.
Summary of the invention
The purpose of this utility model is to design a kind of frame type aeroseal individual layer blade damper door, sealing air chamber and multilayer U type elastic sealing strip have been increased at the baffle door framework place of this device, solved the leakage problem of blade edge place flue gas, guaranteed the sealability of whole baffle door, compare with original twi-tier blade aeroseal baffle door, both saved material, again light and flexible.
Its major technique characteristics comprise that framework is installed on blade on the framework with utilizing blade rotor, the sealing air passage is set in framework, the sealing air cavity that is provided with in the inboard of framework, in the sealing air cavity, form the sealing air passage, on the wall of sealing air cavity vent is set, sealing air passage, sealing air cavity and vent are communicated with respectively.
The vent both sides of sealing air cavity are provided with elastic sealing strip, and the individual layer blade closely contacts with elastic sealing strip when closed with framework, forms the runner sealing air cavity; Elastic sealing strip has twice or multiple tracks, the U type that is shaped as of elastic sealing strip.
Circular ring type arc air seal is set in the connecting part of blade rotor and framework; Be positioned at rotating shaft up and down the blade of both sides be arranged at the left and right sides of rotating shaft respectively, on blade, connect stiffening rib triangular in shape; Stretch out in rotating shaft on the part of framework and connect fork, fork utilizes pull bar to be connected with rocking bar, and rocking bar is connected with connecting rod on being installed on the sealing air valve.
The end of rotating shaft is connected with electric actuator on being installed on framework; And at electric actuator installation handwheel; Rotating shaft utilizes Bearing Installation on framework, in the connecting part of rotating shaft and framework stuffing box is set; Pressure-measuring pipe, drain pipe are installed, at the arranged outside thermal insulation layer of framework on framework.
Major technique characteristics of the present utility model exist: the blade of aeroseal baffle door be individual layer or strengthen the individual layer blade, be different from conventional twi-tier blade aeroseal baffle door, the blade that contacts with the sealing air cavity and the multilayer U type elastic sealing strip of framework edge is an individual layer, thereby simplify the structure, reduce production costs.
The frame seal air cavity of this device closely contacts with the blade periphery with multilayer U type elastic sealing strip, form an airtight cavity, can charge into the high pressure sealing air in the cavity, utilize high pressure sealing air high-temperature flue gas capable of blocking in the gap of blade and framework, to leak.
Description of drawings
Fig. 1 is the baffle door structural drawing.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is for having removed the phase diagram behind electric actuator and the linkage mechanism among Fig. 2.
Fig. 4 is the enlarged view of B among Fig. 3.
Fig. 5 is the enlarged view of C among Fig. 4.
Embodiment
As shown in the figure: whole device comprises that framework 1 is installed on blade 2 on the framework 1 with utilizing blade rotor 5, sealing air passage 24 is set in framework 1, the sealing air cavity 25 that is provided with in the inboard of framework 1, in sealing air cavity 25, form sealing air passage 20, vent 23 is set on the wall of sealing air cavity 25, and sealing air passage 24, sealing air cavity 25 and vent 23 are communicated with respectively.Form a complete high-pressure air passage, so that when blade and framework closure, at the junction point formation high-pressure air curtain of blade and framework, the blocking-up flue gas leaks.
Joint at blade rotor 5 and framework 1 is provided with circular ring type arc air seal 6, this device is open in another patent " the circular ring type arc air seal that is used for baffle door " of the applicant's application, after adopting this device, can guarantee not fume leakage of blade rotor place, guarantee sealing air path unimpeded of whole baffle door; And make blade when cold and hot is moved, all can freely rotate.
This device can be provided with the polylith blade according to the size of the physical dimension of flue, forms the baffle door of louvre type, and every blade all can have sealing air to be sealed;
Vent 23 both sides at sealing air cavity 25 are provided with elastic sealing strip 21, and individual layer blade 2 closely contacts with elastic sealing strip 21 with framework 1 closure the time, forms runner sealing air cavity 26.Sealing air pressure in the runner sealing air cavity 26 is greater than flue gas pressures, and sealing air forms the high-pressure air curtain between the slit of blade diaphragm seal on framework, thoroughly block the leakage of flue gas by the slit, reaches the zero leakage of flue gas fully.
The blade 2 that is positioned at rotating shaft both sides about in the of 5 is arranged at the left and right sides of rotating shaft 5 respectively, on blade, connect stiffening rib 22 triangular in shape, this form helps blade and contacts with the cooperation of elastic sealing strip, be provided with the triangle stiffening rib after, can effectively improve the intensity of blade.
Stretch out in rotating shaft 5 and connect fork 15 on the part of framework 1, fork 15 utilizes pull bar 13 to be connected with rocking bar 12, and rocking bar 12 is connected with connecting rod 11 on being installed on sealing air valve 9.After being provided with the swing-bar mechanism that is connected with the sealing air valve in the rotating shaft, can realize the synchronization motion of blade and swing-bar mechanism, when blade and framework closure, the sealing air valve is opened, when the edge of blade and framework apart, when promptly opening flue gas channel, close the sealing air valve.
The end of rotating shaft 5 is connected with electric actuator 17 on being installed on framework 1.Electric actuator is made up of mechanisms such as motor and retarders, is used for drive vane and rotates around the axis, and drive the sealing air valve events by swing-bar mechanism.In electric actuator 17 handwheel 16 is installed, when motor breaks down or have a power failure, can be utilized handwheel to come drive vane and sealing air valve events.
Rotating shaft 5 utilizes bearing 18 to be installed on the framework 1, in the connecting part of rotating shaft 5 and framework 1 stuffing box 19 is set.To guarantee the normal operation of rotating shaft;
The pressure-measuring pipe 8 that is used to measure passage inner high voltage air pressure is installed on framework 1, is used for getting rid of the drain pipe 3 of the residual foreign material of flue gas.At the arranged outside thermal insulation layer 7 of framework 1, dispel the heat through framework to avoid high-temperature flue gas.Among the figure 4 sends out the hole blue on the framework, and 10 for connecting the sealing air suction tude on sealing air valve 9 and the framework 1, and 14 for being installed on electric actuator on the support on the framework.
Claims (10)
1, frame type aeroseal individual layer blade damper door, comprise that framework (1) is installed on blade (2) on the framework (1) with utilizing blade rotor (5), sealing air passage (24) is set in framework (1), it is characterized in that sealing air cavity (25) in the setting of the inboard of framework (1), in sealing air cavity (25), form sealing air passage (20), vent (23) is set on the wall of sealing air cavity (25), and sealing air passage (24), sealing air cavity (25) and vent (23) are communicated with respectively.
2, baffle door according to claim 1, vent (23) both sides that it is characterized in that sealing air cavity (25) are provided with elastic sealing strip (21), individual layer blade (2) closely contacts with elastic sealing strip (21) when closed with framework (1), forms runner sealing air cavity (26).
3, baffle door according to claim 1 is characterized in that in the connecting part of blade rotor (5) and framework (1) circular ring type arc air seal (6) being set.
4, baffle door according to claim 1 is characterized in that elastic sealing strip (21) has twice or multiple tracks, the U type that is shaped as of elastic sealing strip (21).
5, baffle door according to claim 1, it is characterized in that being positioned at rotating shaft (5) up and down the blade of both sides (2) be arranged at the left and right sides of rotating shaft (5) respectively, on blade, connect stiffening rib (22) triangular in shape.
6, baffle door according to claim 1, it is characterized in that on the part of framework (1) is stretched out in rotating shaft (5), connecting fork (15), fork (15) utilizes pull bar (13) to be connected with rocking bar (12), and rocking bar (12) is connected with connecting rod (11) on being installed on sealing air valve (9).
7, baffle door according to claim 1 is characterized in that the end of rotating shaft (5) is connected with electric actuator (17) on being installed on framework (1).
8, baffle door according to claim 1 is characterized in that in electric actuator (17) handwheel (16) being installed.
9, baffle door according to claim 1 is characterized in that rotating shaft (5) utilizes bearing (18) to be installed on the framework (1), in the connecting part of rotating shaft (5) and framework (1) stuffing box (19) is set.
10, baffle door according to claim 1 is characterized in that being equipped with pressure-measuring pipe (8), drain pipe (3), at the arranged outside thermal insulation layer (7) of framework (1) on framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264617 CN2573794Y (en) | 2002-09-21 | 2002-09-21 | Frame type air sealed single layer blade baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264617 CN2573794Y (en) | 2002-09-21 | 2002-09-21 | Frame type air sealed single layer blade baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573794Y true CN2573794Y (en) | 2003-09-17 |
Family
ID=33730799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02264617 Expired - Lifetime CN2573794Y (en) | 2002-09-21 | 2002-09-21 | Frame type air sealed single layer blade baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573794Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429459C (en) * | 2005-06-07 | 2008-10-29 | 孙克勤 | Wave shaped louvers type smoke gas isolating baffle ventilation door |
| CN100429443C (en) * | 2006-12-08 | 2008-10-29 | 陆纪清 | Energy-storage quick-open type desulfurization baffle door |
| 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 |
| CN104948750A (en) * | 2015-06-24 | 2015-09-30 | 丁毅 | Damper sealing structure |
| CN105402750A (en) * | 2015-12-15 | 2016-03-16 | 北京赫宸环境工程股份有限公司 | Valve frame sealing damper |
| CN105546131A (en) * | 2015-08-24 | 2016-05-04 | 朱小菊 | Firefighting ventilating duct valve |
| CN105674530A (en) * | 2016-03-11 | 2016-06-15 | 江苏华东正大空调设备有限公司 | Shield door top beam electric air valve |
| CN107062284A (en) * | 2017-03-13 | 2017-08-18 | 江苏中热机械设备有限公司 | Soft sealing type baffle ventilation door |
-
2002
- 2002-09-21 CN CN 02264617 patent/CN2573794Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429459C (en) * | 2005-06-07 | 2008-10-29 | 孙克勤 | Wave shaped louvers type smoke gas isolating baffle ventilation door |
| CN100429443C (en) * | 2006-12-08 | 2008-10-29 | 陆纪清 | Energy-storage quick-open type desulfurization baffle door |
| 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 |
| CN104948750A (en) * | 2015-06-24 | 2015-09-30 | 丁毅 | Damper sealing structure |
| CN105546131A (en) * | 2015-08-24 | 2016-05-04 | 朱小菊 | Firefighting ventilating duct valve |
| CN105402750A (en) * | 2015-12-15 | 2016-03-16 | 北京赫宸环境工程股份有限公司 | Valve frame sealing damper |
| CN105674530A (en) * | 2016-03-11 | 2016-06-15 | 江苏华东正大空调设备有限公司 | Shield door top beam electric air valve |
| CN105674530B (en) * | 2016-03-11 | 2018-08-28 | 江苏华东正大空调设备有限公司 | A kind of shield door top beam Electric air valve |
| CN107062284A (en) * | 2017-03-13 | 2017-08-18 | 江苏中热机械设备有限公司 | Soft sealing type baffle ventilation door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2573794Y (en) | Frame type air sealed single layer blade baffle | |
| US20100150544A1 (en) | Iris damper | |
| CN200978606Y (en) | Louver window baffle plate door sealing device | |
| CN102635300B (en) | Shutter baffle door provided with sealing device | |
| CN2573795Y (en) | Air sealed single layer blade baffle | |
| CN108458355A (en) | Frame type air sealed single layer blade baffle | |
| CN104776439A (en) | Flue damper for large flue | |
| CN105276202B (en) | Blinds butterfly valve is pneumatically opened fastly | |
| CN204678359U (en) | For the baffle board door of flue of large-scale flue | |
| CN203363212U (en) | Flue gas pipeline seal valve | |
| CN1274937C (en) | Revolving door | |
| CN220581704U (en) | Sealed gate valve | |
| CN204880646U (en) | Gas heater prevents frostbite | |
| CN2568982Y (en) | Ring type arc shape airtight device for baffle door | |
| CN202659107U (en) | Louver damper gate with seal device | |
| CN209762264U (en) | Sealing air valve | |
| CN210265906U (en) | Smoke exhaust valve and smoke exhaust system | |
| CN209129282U (en) | Roofing ventilation integrating device | |
| CN207527091U (en) | Fire resisting damper | |
| CN221762707U (en) | Fire prevention valve capable of stably passing through air flow | |
| CN212616353U (en) | Air valve | |
| CN220082148U (en) | Sealing mechanism for fireproof valve | |
| CN202813416U (en) | Bar material heating furnace fan gate valve | |
| CN211550558U (en) | Double-shaft double-flap valve | |
| CN213776472U (en) | Air-fuel check valve for combustor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120921 Granted publication date: 20030917 |