CN206617968U - A kind of flexible rolling contact type air pre-heating device sealing device - Google Patents
A kind of flexible rolling contact type air pre-heating device sealing device Download PDFInfo
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- CN206617968U CN206617968U CN201720301549.3U CN201720301549U CN206617968U CN 206617968 U CN206617968 U CN 206617968U CN 201720301549 U CN201720301549 U CN 201720301549U CN 206617968 U CN206617968 U CN 206617968U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of flexible rolling contact type air pre-heating device sealing device, including sealing roller, seal roller positioning pipe, seal roller alignment pin, rotary seal plate, rotational support pipe, rotational pin, fixed support plate and elastic parts, the fixed support plate is fixedly connected with one end of rotational pin, the other end outer cover of the rotational pin is provided with rotational support pipe, rotary seal plate is fixed with the rotational support pipe, one end of the sealing roller positioning pipe is fixed on the top of rotary seal plate, the other end outer cover of the sealing roller positioning pipe is provided with sealing roller alignment pin provided with sealing roller and at the end, the two ends of the elastic parts are separately fixed on rotary seal plate and fixed support plate.A kind of flexible rolling contact type air pre-heating device sealing device that the utility model is provided, simple and reasonable, good seal performance, leakage rate is small, is conducive to saving and cuts operating costs.
Description
Technical field
The utility model is related to the rotary regenerative air preheater of the boiler in turbine LP rotors, particularly this kind preheating
The sealing device of device, belongs to the part for the equipment that heat exchange is carried out using rotary motion passage.
Background technology
In current domestic large-scale rotation air preheater structure, its inner sealing is lamellar seal, and its structure is in rotation
Peritrochanteric be provided with radially, axially with ring sealing pair, seal be adjustable diaphragm seal, diaphragm seal, which is fastened on, to be revolved
On the beam turned.Air preheater is divided into air side and fume side, there is larger pressure difference therebetween, because air preheater is in operating mode bar
Mushroom deformation can be produced under part, diaphragm seal there are certain design gaps, causes the problem of air is to smoke spillage, is exactly described
Air Leakage.Normal air leak rate of air curtain design load is 9% or so.Existing diaphragm seal is steel sealing device, although between can adjusting
Gap, but can only be adjusted in installation or shutdown, it is impossible to operationally adjust, in order to prevent to touch mill, stuck influence equipment
The machine of rising, the gap adjusted when mounted is larger, and the rotating cylinder of air preheater can also vary with temperature generation when work
Irregular protuberance, causes gap further to increase, and actual air leak rate of air curtain is up to 20 % ~ 30%, hence it is evident that increase energy consumption and fortune
Seek cost.
Utility model content
In order to solve the deficiencies in the prior art, it is pre- that the utility model provides a kind of flexible rolling contact type air
Hot device sealing device, simple in construction, reasonable in design, manufacture is accurate, and integrated cost is low, easy for installation, good sealing effect and uses
Long lifespan, has a good application prospect, and is worthy to be popularized.
To solve the above problems, the utility model specifically uses following technical scheme：
A kind of flexible rolling contact type air pre-heating device sealing device, it is characterised in that including sealing roller, sealing roller
Positioning pipe, sealing roller alignment pin, rotary seal plate, rotational support pipe, rotational pin, fixed support plate and elastic parts, institute
State fixed support plate to be fixedly connected with one end of rotational pin, the other end outer cover of the rotational pin is provided with rotational support pipe, institute
State and rotary seal plate is fixed with rotational support pipe, one end of the sealing roller positioning pipe is fixed on the top of rotary seal plate
Portion, the other end outer cover of the sealing roller positioning pipe is provided with sealing roller alignment pin provided with sealing roller and at the end,
The two ends of the elastic parts are separately fixed on rotary seal plate and fixed support plate.
A kind of foregoing flexible rolling contact type air pre-heating device sealing device, it is characterised in that the elastic parts bag
Include spring and draw pin, spring, spring upper arm-tie and spring lower pulling plate, the spring upper arm-tie is fixed on rotary seal plate, institute
State spring lower pulling plate to be fixed on fixed support plate, the spring upper arm-tie is provided with opening, the spring draws pin through opening
So that one end is fixed on spring lower pulling plate, the spring is set in the outside of spring drawing pin and its two ends is separately fixed at spring
In upper arm-tie, spring lower pulling plate.
Foregoing a kind of flexible rolling contact type air pre-heating device sealing device, it is characterised in that the spring draws pin
Length is more than the distance between spring upper arm-tie and spring lower pulling plate.
A kind of foregoing flexible rolling contact type air pre-heating device sealing device, it is characterised in that the spring upper arm-tie
It is vertically connected at rotary seal plate, the spring lower pulling plate is vertically connected at fixed support plate.
A kind of foregoing flexible rolling contact type air pre-heating device sealing device, it is characterised in that the fixed support plate
It is welded and fixed with rotational pin, the rotary seal plate weld is fixed on rotational support pipe.
A kind of foregoing flexible rolling contact type air pre-heating device sealing device, it is characterised in that the fixed support plate
Mounting hole is provided with, the fixed support plate is fixed the flexible rolling contact type air pre-heating device sealing device by mounting hole
On the beam of the rotating cylinder of air preheater.
Foregoing a kind of flexible rolling contact type air pre-heating device sealing device, it is characterised in that the flexibility is in rolling contact
Regenerative air heater sealing device is commonly mounted on turning for rotary regenerative air preheater with original diaphragm seal on air preheater
On the beam of cylinder.
A kind of foregoing flexible rolling contact type air pre-heating device sealing device, it is characterised in that the rotary seal plate
Front end bend towards the opposite side of air preheater direction of rotation.
The beneficial effects of the utility model：A kind of flexible rolling contact type air pre-heater sealing that the utility model is provided
Device, due to the rigid leaf seal in radially, axially sealing pair being set up or being changed to the sealing of flexible rolling contact type
Device, the sealing being made up of rotary seal plate and spring mechanism, its flexible and rigidity is moderate, even if the upper fanning strip of contact and arc
Plate, nor affects on the normal operation of air preheater, because stage clip flexibility preferably, sealing roller and fanning strip or arc are to roll
Flowing mode is contacted, and coefficient of friction is minimum, and fanning strip and arc wear extent are minimum so that seal roller energy under the action of the spring
Enough appropriateness all the time are contacted with fanning strip or arc, accomplish zero clearance seal.The flexible rolling contact type air pre-heater sealing
Device effectively can prevent medium from leaking outside, and can prevent the medium of exterior ambient environment from forming interior leakage into sealed chamber again, its
Leakage rate is only 1/5~1/20 that general expression sealedly designs leakage rate, and air leak rate of air curtain is reduced to 1~4%, with simple in construction, if
Meter is reasonable, and manufacture is accurate, and integrated cost is low, easy for installation, the advantages of good sealing effect and long service life.
Brief description of the drawings
Fig. 1 is the structural representation of flexible rolling contact type air pre-heating device sealing device of the present utility model；
Fig. 2 is the flexible separately installed schematic diagram of rolling contact type air pre-heating device sealing device of the present utility model；
Fig. 3 is flexible rolling contact type air pre-heating device sealing device of the present utility model and the original sealing of air preheater
The common scheme of installation of piece.
Reference implication is as follows：
1：Seal roller；2：Seal roller positioning pipe；3：Seal roller alignment pin；4：Rotary seal plate；5：Rotational support
Pipe；6：Rotational pin；7：Fixed support plate；8：Spring upper arm-tie；9：Spring draws pin；10：Spring；11：Mounting hole；12：Under spring
Arm-tie；13：Beam；14：Diaphragm seal.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of flexible rolling contact type air pre-heating device sealing device, including sealing roller 1, sealing roller
Positioning pipe 2, sealing roller alignment pin 3, rotary seal plate 4, rotational support pipe 5, rotational pin 6, fixed support plate 7 and elastic group
Part, the fixed support plate 7 is welded and fixed with one end of rotational pin 6 to be connected, and the other end outer cover of the rotational pin 6, which is provided with, to be turned
Dynamic support tube 5, i.e. rotary seal plate 4 are bound up on fixed support plate 7 in a welding manner by rotational support pipe 5, rotational pin 6
It is integrally formed on a hinge apparatus, the rotational support pipe 5 and is welded with rotary seal plate 4, the sealing roller positioning
One end of pipe 2 is fixed on the top of rotary seal plate 4, and the other end outer cover of the sealing roller positioning pipe 2 is rolled provided with sealing
Post 1 is simultaneously provided with sealing roller alignment pin 3 at the end, to prevent sealing roller 1 from being slid from sealing roller positioning pipe 2,
The two ends of the elastic parts are separately fixed at rotary seal plate 4 with fixed support plate 7, not connect with fanning strip or arc
When touching, elastic parts keeps elastic original state, when being contacted with fanning strip or arc, because elastic parts is flexible, rotates
Sealing plate 4 is slightly rotated around rotational pin 6, and elastic parts, which is compressed, to be intended to restore to the original state and push up rotary seal plate 4 upwards, simultaneously
Sealing roller 1, which is rolled, does not influence fanning strip or arc so that sealing roller 1 contacts realization with fanning strip or arc all the time and held
Continuous sealing gapless.
Further, the elastic parts includes spring drawing pin 9, spring 10, spring upper arm-tie 8 and spring lower pulling plate
12, the spring upper arm-tie 8 is fixed on rotary seal plate 4, and the spring lower pulling plate 12 is fixed on fixed support plate 7, institute
Spring upper arm-tie 8 is stated provided with opening, the spring draws pin 9 through opening one end to be fixed on spring lower pulling plate 12, institute
State spring 10 and be set in spring and draw the outside and its two ends of pin 9 to be separately fixed at spring upper arm-tie 8, on spring lower pulling plate 12, i.e.,
Spring draws the lower end of pin 9 to be fixedly connected with spring lower pulling plate 12, and upper end is flexibly connected with spring upper arm-tie 8, bullet
Spring draws the upper end of pin 9 to pass through opening to be moveable in opening, and because spring draws the length of pin 9 to be more than spring upper arm-tie 8
The distance between with spring lower pulling plate 12, therefore, spring draws pin 9 to be come off from opening, so, when rotary seal plate 4
When being rotated around rotational pin 6 and causing the spring 10 to be compressed, spring draws the distance between the upper end of pin 9 and spring upper arm-tie 8 to increase
Greatly, and spring 10 restores to the original state and pushes up spring upper arm-tie 8 upwards, drive rotary seal plate 4 to be reversely rotated around rotational pin 6 and return to
Original state.
Further, the spring upper arm-tie 8 is vertically connected at rotary seal plate 4, and the spring lower pulling plate 12 vertically connects
It is connected to fixed support plate 7, stable connection and convenient processing.
Further, the fixed support plate 7 is provided with mounting hole 11, as shown in Figure 2,3, and the fixed support plate 7 leads to
Cross mounting hole 11 the flexible rolling contact type air pre-heating device sealing device is fixed on the beam 13 of the rotating cylinder of air preheater,
Or the flexible rolling contact type air pre-heating device sealing device is commonly mounted on original diaphragm seal 14 on air preheater
On the beam 13 of the rotating cylinder of rotary regenerative air preheater.
Further, for the ease of installing and being conducive to rotate, the front end of the rotary seal plate 4 can suitably bend towards air
The opposite side of preheater direction of rotation.
General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the utility model spirit and scope are not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within the range of claimed the utility model.Scope is claimed in the utility model
By appended claims and its equivalent thereof.
Claims (8)
1. a kind of flexible rolling contact type air pre-heating device sealing device, it is characterised in that including sealing roller (1), sealing rolling
Post positioning pipe (2), sealing roller alignment pin (3), rotary seal plate (4), rotational support pipe (5), rotational pin (6), fixed support
Plate (7) and elastic parts, the fixed support plate (7) are fixedly connected with one end of rotational pin (6), the rotational pin (6)
Other end outer cover is provided with rotational support pipe (5), the rotational support pipe (5) and is fixed with rotary seal plate (4), the sealing
One end of roller positioning pipe (2) is fixed on outside the top of rotary seal plate (4), the other end of the sealing roller positioning pipe (2)
Portion is arranged with sealing roller (1) and at the end provided with sealing roller alignment pin (3), and the two ends of the elastic parts are fixed respectively
On rotary seal plate (4) and fixed support plate (7).
2. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 1, it is characterised in that described
Elastic parts includes spring and draws pin (9), spring (10), spring upper arm-tie (8) and spring lower pulling plate (12), the spring pull-up
Plate (8) is fixed on rotary seal plate (4), and the spring lower pulling plate (12) is fixed on fixed support plate (7), on the spring
Arm-tie (8) is provided with opening, and the spring draws pin (9) through opening one end to be fixed on spring lower pulling plate (12), described
Spring (10) is set in the outside of spring drawing pin (9) and its two ends is separately fixed at spring upper arm-tie (8), spring lower pulling plate (12)
On.
3. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 2, it is characterised in that described
Spring draws the length of pin (9) to be more than the distance between spring upper arm-tie (8) and spring lower pulling plate (12).
4. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 2, it is characterised in that described
Spring upper arm-tie (8) is vertically connected at rotary seal plate (4), and the spring lower pulling plate (12) is vertically connected at fixed support plate
(7)。
5. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 1, it is characterised in that described
Fixed support plate (7) is welded and fixed with rotational pin (6), and the rotary seal plate (4) is weldingly fixed on rotational support pipe (5).
6. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 5, it is characterised in that described
Fixed support plate (7) is provided with mounting hole (11), and the flexibility is in rolling contact by the fixed support plate (7) by mounting hole (11)
Regenerative air heater sealing device is fixed on the beam of the rotating cylinder of air preheater (13).
7. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 6, it is characterised in that this is soft
Property rolling contact type air pre-heating device sealing device and air preheater on original diaphragm seal (14) be commonly mounted on swinging
On the beam (13) of the rotating cylinder of air preheater.
8. a kind of flexible rolling contact type air pre-heating device sealing device according to claim 1, it is characterised in that described
The front end of rotary seal plate (4) bends towards the opposite side of air preheater direction of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301549.3U CN206617968U (en) | 2017-03-27 | 2017-03-27 | A kind of flexible rolling contact type air pre-heating device sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301549.3U CN206617968U (en) | 2017-03-27 | 2017-03-27 | A kind of flexible rolling contact type air pre-heating device sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617968U true CN206617968U (en) | 2017-11-07 |
Family
ID=60234169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720301549.3U Active CN206617968U (en) | 2017-03-27 | 2017-03-27 | A kind of flexible rolling contact type air pre-heating device sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617968U (en) |
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2017
- 2017-03-27 CN CN201720301549.3U patent/CN206617968U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200520 Address after: No.12, yanmahe Road, science and technology entrepreneurship Park, economic development zone, Hongze District, Huai'an City, Jiangsu Province Patentee after: JIANGSU XINXINRUN TECHNOLOGY Co.,Ltd. Address before: 210046 yaohuamen, Qixia District, Nanjing City, Jiangsu Province Patentee before: Li Chunmei |