CN2573795Y - Air sealed single layer blade baffle - Google Patents
Air sealed single layer blade baffle Download PDFInfo
- Publication number
- CN2573795Y CN2573795Y CN 02264619 CN02264619U CN2573795Y CN 2573795 Y CN2573795 Y CN 2573795Y CN 02264619 CN02264619 CN 02264619 CN 02264619 U CN02264619 U CN 02264619U CN 2573795 Y CN2573795 Y CN 2573795Y
- Authority
- CN
- China
- Prior art keywords
- sealing air
- blade
- sealing
- framework
- baffle door
- 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
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Abstract
The utility model relates to an air seal shield board door, which can be used for blocking flue gases or leading flue gases in a thermal power plant or other desulphurization systems. The utility model is characterized in that blades of the air seal shield board door are a single layer; sealing air cavity bodies of the edge of the circumference of each blade and elastic sealing sheets are matched with sealing shield strips of frames, and a sealed cavity is formed; the cavity can be filled with high pressure sealing air; a louver type shield board door is composed of a plurality of blades; each blade is sealed by sealing air. The utility model can thoroughly block the leakage of flue gases through gaps, and can completely achieve the zero leakage of 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 admittance flue gas in thermal power plant and other desulphurization systems in flue, specifically is exactly a kind of aeroseal baffle door.
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 3 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.
Is zero technical requirements to baffle door at the amount of leakage of closing Shi Junyou requirement flue gas.Original mechanism is not owing to utilize pressurized gas to seal, 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 aeroseal individual layer blade damper door, and this baffle door is an individual layer, thereby can reduce the raw material of making baffle door, reduces production costs.
Its major technique characteristics comprise that framework and the blade that utilizes blade rotor to be installed on the runner sealing air register door in the framework are individual layers.
In the edge of blade the sealing air cavity is set, connects elastic sealing strip in the end of sealing air cavity; Connect the sealing blend stop on framework, the sealing blend stop can form the sealing air passage with the sealing air cavity.
The sealing air vent is set on framework, and the opening of sealing air vent is between two diaphragm seal blend stops, with the sealing air channel connection; At the connecting part of framework and blade rotor mounting circular ring formula arc air seal.
Be positioned at the blade edge the sealing air cavity be shaped as half rectangle or semicircle or V-arrangement; On blade, connect stiffening rib; Connect fork in the outside of blade rotor, fork utilizes the sealing air valve connecting rod in the sealing air valve rotating shaft of connecting rod and the through and off of controlling the sealing air vent to be connected.
Main feature of the present utility model exists: the blade of aeroseal baffle door is an individual layer, is different from conventional twi-tier blade aeroseal baffle door, thereby reduces raw-material consumption, has simplified manufacturing process, has reduced cost of production; Sealing air cavity and elastic sealing strip are equipped with in the edge of individual layer blade, when blade and framework are in closed state, elastic sealing strip cooperates with diaphragm seal blend stop on being arranged at framework, form a sealing air passage, the volume of this sealing air passage is little far beyond the sealing air passage of double-deck baffle door, therefore required sealing air amount is also less, has reduced the air quantity and the power of electric motor of blower fan, has saved the energy.
Description of drawings
Fig. 1 is the partial structurtes figure of baffle door.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the phase diagram of removing among Fig. 2 behind fork and the connecting rod.
Fig. 4,5,6 is the enlarged view of C among Fig. 3, is respectively 3 kinds of different sealing air cavity body structure figure.
Embodiment
As shown in the figure: comprise that framework 1 is installed on blade 2 in the framework 1 with utilizing blade rotor 12, the blade 2 of sealing air baffle door is an individual layer, thereby relatively simple for structure.
In the edge of blade 2 sealing air cavity 10 is set, connects elastic sealing strip 14 in the end of sealing air cavity 10, connect sealing blend stop 8 on framework 1, sealing blend stop 8 can form sealing air passage 16 with sealing air cavity 10.The sealing air cavity of the blade edge of this device and elastic sealing strip match with sealing blend stop on the framework, form an airtight cavity, can charge into the high pressure sealing air in the cavity.
Adopt circular ring type arc air seal 3 at blade rotor 12 places, this device 3 is open in " the circular ring type arc air seal that is used for baffle door " patent application of the applicant's application.Can guarantee that the blade rotor place does not reveal flue gas after adopting this device, make the sealing air passage of whole baffle door unimpeded, and guarantee that blade when cold and hot is moved, all can freely rotate.
Individual layer blade aeroseal baffle door 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 has sealing air to be sealed.
The pressure of sealing air is greater than flue gas pressures, and sealing air forms the high-pressure air curtain at blade between the slit of framework, thoroughly blocks the leakage of flue gas by the slit, reaches zero leakage of baffle door flue gas when closing fully.
Sealing air vent 7 is set on framework 1, the opening of sealing air vent 7 is between two diaphragm seal blend stops 8, be communicated with sealing air passage 16, the high pressure sealing air is delivered in the sealing air passage 16 by sealing air vent 7, so that when blade and framework closure, form high pressure sealing in its connecting part, stop high-temperature flue gas to leak.
Be positioned at blade 2 edges sealing air cavity 10 be shaped as half rectangle or semicircle or V-arrangement, as long as the shape of sealing air cavity 10 can be diversifiedly can surround a cavity, in cavity, carry high pressure sealing gas to get final product.
On blade 2, connect stiffening rib 15, have only the intensity of the blade of one deck with raising.
The outside at blade rotor 12 connects fork 13, fork 13 utilizes the sealing air valve connecting rod in the sealing air valve rotating shaft of connecting rod 11 and the through and off of control sealing air vent 7 to be connected, utilize the synchronous operation that can realize high pressure sealing air and blade behind this device, when baffle door is closed or is opened, open or close the sealing air valve, " the frame type aeroseal individual layer blade damper door " patent application that can apply for simultaneously referring to the applicant.
Because this device is an individual layer blade aeroseal baffle door, has solved the leakage problem of baffle door blade edge place flue gas when closing, thereby has guaranteed the sealability of whole baffle door.Compare with twi-tier blade aeroseal baffle door, have characteristics such as making simple, economical with materials and light and flexible.
Claims (9)
1, aeroseal individual layer blade damper door comprises that framework (1) is installed on the interior blade (2) of framework (1) with utilizing blade rotor (12), is characterized in that the blade (2) of sealing air baffle door is an individual layer.
2, baffle door according to claim 1 is characterized in that in the edge of blade (2) sealing air cavity (10) being set, and connects elastic sealing strip (14) in the end of sealing air cavity (10).
3, baffle door according to claim 1 is characterized in that going up connection sealing blend stop (8) at framework (1), and sealing blend stop (8) can form sealing air passage (16) with sealing air cavity (10).
4, according to claim 1 or 3 described baffle doors, it is characterized in that on framework (1), being provided with sealing air vent (7), the opening of sealing air vent (7) is positioned between two diaphragm seal blend stops (8), is communicated with sealing air passage (16).
5, baffle door according to claim 1 is characterized in that at the connecting part mounting circular ring formula arc air seal (3) of framework (1) with blade rotor (12).
6, baffle door according to claim 1 and 2, it is characterized in that being positioned at blade (2) edge sealing air cavity (10) be shaped as half rectangle or semicircle or V-arrangement.
7, baffle door according to claim 1 is characterized in that going up connection stiffening rib (15) at blade (2).
8, baffle door according to claim 1, it is characterized in that connecting in the outside of blade rotor (12) fork (13), fork (13) utilizes the sealing air valve connecting rod in the sealing air valve rotating shaft of connecting rod (11) and the through and off of controlling sealing air vent (7) to be connected.
9, baffle door according to claim 1 is characterized in that blade rotor (12) utilizes bearing support (5) to be installed on the framework (1), and at its joint stuffing box (4) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264619 CN2573795Y (en) | 2002-09-21 | 2002-09-21 | Air sealed single layer blade baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264619 CN2573795Y (en) | 2002-09-21 | 2002-09-21 | Air sealed single layer blade baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573795Y true CN2573795Y (en) | 2003-09-17 |
Family
ID=33730801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02264619 Expired - Lifetime CN2573795Y (en) | 2002-09-21 | 2002-09-21 | Air sealed single layer blade baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573795Y (en) |
Cited By (3)
| 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 |
| CN104948750A (en) * | 2015-06-24 | 2015-09-30 | 丁毅 | Damper sealing structure |
| CN113007362A (en) * | 2021-03-04 | 2021-06-22 | 泰州华业管道设备制造有限公司 | Marine desulfurization double-layer sealing valve |
-
2002
- 2002-09-21 CN CN 02264619 patent/CN2573795Y/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN104948750A (en) * | 2015-06-24 | 2015-09-30 | 丁毅 | Damper sealing structure |
| CN113007362A (en) * | 2021-03-04 | 2021-06-22 | 泰州华业管道设备制造有限公司 | Marine desulfurization double-layer sealing valve |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120921 Granted publication date: 20030917 |