CN209041550U - The sealing device of desulfurization duct air door - Google Patents
The sealing device of desulfurization duct air door Download PDFInfo
- Publication number
- CN209041550U CN209041550U CN201821623591.8U CN201821623591U CN209041550U CN 209041550 U CN209041550 U CN 209041550U CN 201821623591 U CN201821623591 U CN 201821623591U CN 209041550 U CN209041550 U CN 209041550U
- Authority
- CN
- China
- Prior art keywords
- sealing strip
- air door
- soft sealing
- soft
- duct air
- 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 - Fee Related
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of sealing devices of desulfurization duct air door, including damper, the upper end of the damper is fixedly connected with rotary shaft, the both ends of the rotary shaft are rotatablely connected by bearing and the walling of flue of the air door two sides, the surrounding edge of the damper is equipped with the first soft sealing strip, the second soft sealing strip is fixed on the surrounding inner sidewall of the flue, the second soft sealing strip is arranged in a one-to-one correspondence with the described first soft sealing strip.The sealing device of the desulfurization duct air door of the utility model, sealing effect is good, long service life.
Description
Technical field
The utility model relates to boiler desulfurization flue technical fields, specifically, being related to a kind of the close of desulfurization duct air door
Seal apparatus.
Background technique
Currently, to reduce cost, there are more boilers to share a desulfurizing tower for many power plant in the practical construction of power plant
The case where, for operational safety, every boiler enters installation air door partition among the exhaust gases passes of desulfurizing tower, at present desulfurization duct
Air door mostly uses electronic Spile-type air door, and hard sealing structure, gate and sealing plate are metal and directly contact sealing, this sealing
Structure due to long-time 120 ° -140 ° at a temperature of work, metal sealing side can have slight deformation, cause it is poorly sealed,
Frictional force increases simultaneously, is easily damaged equipment, air door is poorly sealed just make its desulfurization wet flue gas flow backward corrosion flue, air-introduced machine and
The equipment such as deduster cause equipment safety hidden danger to be aggravated, and reduce service life of equipment.
Utility model content
A kind of the technical problem to be solved by the utility model is to provide sealing effects desulfurization cigarette good, with long service life
The sealing device of road air door.
In order to solve the above technical problems, the technical solution of the utility model is:
The sealing device of desulfurization duct air door, including damper, the upper end of the damper are fixedly connected with rotation
The both ends of shaft, the rotary shaft are rotatablely connected by bearing and the walling of flue of the air door two sides, and the four of the damper
Peripheral edge portion is equipped with the first soft sealing strip, and the second soft sealing is fixed on the surrounding inner sidewall of the flue
Item, the second soft sealing strip are arranged in a one-to-one correspondence with the described first soft sealing strip.
Preferably, the edge part of the edge part of the left and right sides of the damper and downside is fixed with silica gel material
First soft sealing strip of material.
Preferably, the described second soft sealing strip is the second soft sealing strip of silica gel material.
Preferably, it is soft to be equipped with asbestos cord filler is formed first for the angle between the rotary shaft and the walling of flue
Sealing strip.
Preferably, the upper surface of the described second soft sealing strip and the lower end surface of the first soft sealing strip are mutual
The inclined-plane of adaptation.
Preferably, the transmission of rotary axis is connected with motor.
Preferably, the bearing block for installing the bearing is fixed on the flue upper end lateral wall of two sides.
Preferably, fastening bolt is connected between the described first soft sealing strip and the damper of silica gel material.
Preferably, angle bar is fixed on the surrounding inner sidewall of the flue, described the second of silica gel material is soft
Fastening bolt is connected between sealing strip and the corresponding angle bar.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
The sealing device of the desulfurization duct air door of the utility model drives the side of damper rotary switch using rotary shaft
Formula, at closing time, the first soft sealing strip and the second soft sealing strip contact soft sealing, and sealing effect is good, and damper
It is not easy to deform, long service life.
In the utility model, the lower end surface of the upper surface of the second soft sealing strip and the first soft sealing strip is phase
The inclined-plane being mutually adapted to, further improves sealing effect.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of the sealing device of the desulfurization duct air door of the utility model；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the B-B direction cross-sectional view of Fig. 1；
In figure: 1- walling of flue；2- damper；3- rotary shaft；4- bearing block；5- bearing；The soft sealing strip of 6- first；7-
Second soft sealing strip；8- fastening bolt；9- angle bar；The inclined-plane 10-.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to attached drawing 1 to Fig. 3, the sealing device of the desulfurization duct air door of the present embodiment, including set on the air port of flue
Damper 2, the upper end of damper 2 are fixedly connected with rotary shaft 3, and the both ends of rotary shaft 3 pass through bearing 5 and air door two sides
Walling of flue 1 be rotatablely connected, the bearing block 4 for installing bearing 5 is fixed on the flue upper end lateral wall of two sides.
The surrounding edge of damper 2 is equipped with the first soft sealing strip 6, fixes on the surrounding inner sidewall of flue
Equipped with the second soft sealing strip 7, the second soft sealing strip 7 is arranged in a one-to-one correspondence with the first soft sealing strip 6.
It is first soft to be fixed with silica gel material for the edge part of the left and right sides of damper 2 and the edge part of downside
Property sealing strip 6.
Second soft sealing strip 7 is the second soft sealing strip 7 of silica gel material.
Angle between rotary shaft 3 and walling of flue 1 is equipped with the first soft sealing strip 6 that asbestos cord filler is formed.
The upper surface of second soft sealing strip 7 and the lower end surface of the first soft sealing strip 6 are the inclined-plane being mutually adapted.
In order to realize the automatic rotation of rotary shaft 3, rotary shaft 3 can be sequentially connected with motor (not shown), pass through electricity
Machine come drive the automatic forward and reverse of rotary shaft 3 rotate, thus drive damper 2 be automatically switched.
The sealing device of the desulfurization duct air door of the utility model drives 2 rotary switch of damper using rotary shaft 3
Mode, at closing time, the first soft sealing strip 6 and the second soft sealing strip 7 contact soft sealing, and sealing effect is good, and air door
Baffle 2 is not easy to deform, long service life.
In the use of the new type, the lower end surface of the upper surface of the second soft sealing strip 7 and the first soft sealing strip 6 is
The inclined-plane 10 being mutually adapted, further improves sealing effect.
Fastening bolt 8, fastening bolt 8 are connected between the soft sealing strip 6 of described the first of silica gel material and damper 2
It is embedded in corresponding first soft sealing strip 6.
Be fixed with angle bar 9 on the surrounding inner sidewall of flue, the soft sealing strip 7 of the second of silica gel material with it is corresponding
Fastening bolt 8 is connected between angle bar 9.Fastening bolt 8 is embedded in corresponding second soft sealing strip 7.
The above is the citing of the utility model preferred forms, wherein the part that do not address in detail is this field
The common knowledge of those of ordinary skill.The protection scope of the utility model is based on the contents of the claims, any to be based on this reality
The equivalent transformation carried out with novel technical inspiration, is also within the protection scope of the utility model.
Claims (9)
1. the sealing device of desulfurization duct air door, including damper, it is characterised in that: the upper end of the damper is fixed
It is connected with rotary shaft, the both ends of the rotary shaft are rotatablely connected by bearing and the walling of flue of the air door two sides, the air door
The surrounding edge of baffle is equipped with the first soft sealing strip, and it is soft to be fixed with second on the surrounding inner sidewall of the flue
Property sealing strip, the second soft sealing strip are arranged in a one-to-one correspondence with the described first soft sealing strip.
2. the sealing device of desulfurization duct air door according to claim 1, it is characterised in that: the left and right of the damper
The edge part of two sides and the edge part of downside are fixed with the first soft sealing strip of silica gel material.
3. the sealing device of desulfurization duct air door according to claim 2, it is characterised in that: the second soft sealing strip
For the second soft sealing strip of silica gel material.
4. the sealing device of desulfurization duct air door according to claim 3, it is characterised in that: the rotary shaft and the cigarette
Angle between road wall is equipped with the first soft sealing strip that asbestos cord filler is formed.
5. the sealing device of desulfurization duct air door according to any one of claims 1 to 4, it is characterised in that: described second
The upper surface of soft sealing strip and the lower end surface of the first soft sealing strip are the inclined-plane being mutually adapted.
6. the sealing device of desulfurization duct air door according to claim 5, it is characterised in that: the transmission of rotary axis connection
There is motor.
7. the sealing device of desulfurization duct air door according to claim 6, it is characterised in that: the flue upper end of two sides
The bearing block for installing the bearing is fixed on lateral wall.
8. the sealing device of desulfurization duct air door according to claim 7, it is characterised in that: described the first of silica gel material
Fastening bolt is connected between soft sealing strip and the damper.
9. the sealing device of desulfurization duct air door according to claim 8, it is characterised in that: in the surrounding of the flue
It is fixed with angle bar on side wall, is connected between the described second soft sealing strip and the corresponding angle bar of silica gel material tight
Fixing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821623591.8U CN209041550U (en) | 2018-09-30 | 2018-09-30 | The sealing device of desulfurization duct air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821623591.8U CN209041550U (en) | 2018-09-30 | 2018-09-30 | The sealing device of desulfurization duct air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041550U true CN209041550U (en) | 2019-06-28 |
Family
ID=67035246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821623591.8U Expired - Fee Related CN209041550U (en) | 2018-09-30 | 2018-09-30 | The sealing device of desulfurization duct air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041550U (en) |
-
2018
- 2018-09-30 CN CN201821623591.8U patent/CN209041550U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 Termination date: 20200930 |