CN208312431U - A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater - Google Patents
A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater Download PDFInfo
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- CN208312431U CN208312431U CN201820711052.3U CN201820711052U CN208312431U CN 208312431 U CN208312431 U CN 208312431U CN 201820711052 U CN201820711052 U CN 201820711052U CN 208312431 U CN208312431 U CN 208312431U
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Abstract
The utility model discloses a kind of mounting structure of fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater, fan-shaped hot bellows include fan-shaped hot wind sealing plate, the first bellows side plate, the second bellows side plate, bellows bottom plate and end closure plate；The radial direction of bellows bottom plate and fan-shaped hot wind sealing plate is in 5-25 ° of angle；A strip notch is radially provided with along fan-shaped hot wind sealing plate in the wherein a line of fan-shaped hot wind sealing plate；Fan-shaped hot bellows are mounted in rotary regenerative air preheater cold end secondary air separating storehouse, and the radial direction of fan-shaped hot wind sealing plate is consistent with rotary regenerative air preheater rotor radial；One side jaggy is adjacent with fanning strip between cold end First air and Secondary Air on fan-shaped hot wind sealing plate；Fanning strip is fixedly connected between the big end of fan-shaped hot bellows and cold end First air and Secondary Air, and small end is overlapped on the rank frame between cold end air and flue gas, on-fixed connects.The utility model sector hot bellows have many advantages, such as that resistance is small, air distribution is uniform and improve anti-blocking ash content storehouse sealing effect.
Description
Technical field
The utility model relates to a kind of specific structures of the anti-blocking ash content storehouse component of rotary regenerative air preheater, and it is pre- to belong to air
The hot anti-blocking gray technology field of device.
Background technique
Rotary regenerative air preheater (referred to as " preheater ") is a kind of heat-exchange apparatus for large-sized station boiler, its benefit
Air needed for heating burning with the heat of boiler smoke, the efficiency of boiler is improved with this.
Preheater focus of attention problem mainly includes stifled ash, air leak rate of air curtain is higher, heat transfer efficiency is low, low-temperature corrosion is serious
Deng these problems affect the safety and economical operation of equipment for a long time.
The above problem is long-standing, and mutually promotes, influences each other.In recent years, generally putting into operation with denitrating system,
Preheater running environment changes, and above-mentioned stifled ash is particularly problematic, administers difficult, complicated.
The denitrating flue gas facility that coal-burning power plant adds at present is mainly based on selective catalytic reduction (SCR) technology.Using
Part SO after SCR denitration process, in flue gas2SO will be oxidized to by denitrating catalyst3, increase SO in flue gas3Volume it is dense
, there is inevitable the escaping of ammonia phenomenon in addition, lead to ammonium hydrogen sulfate (NH in degree4HSO4) etc. by-products a large amount of generations, and improve
Flue gas acid dew point temperature, causes low-temperature corrosion to aggravate.
Above-mentioned by-product ammonium hydrogen sulfate (NH4HSO4) temperature be 146~207 DEG C within the scope of, be in molten, can securely glue
It is attached to air preheater heat accumulating element surface, makes heat accumulating element that corrosion and dust stratification occur, it is final easily to cause stifled ash, to the peace of unit
Row for the national games causes very big hidden danger.Existing part power plant of the country leads to unit load limit because can not solve the problems, such as or alleviating this, very
To by forced-stopping machine.
When exhaust gas temperature is lower than acid dew point, sulfuric acid vapor will condense, and sulfuric acid droplets are attached on cold end heat accumulating element, rotten
Lose heat accumulating element.The acid dew point of flue gas is with SO3The raising of concentration and improve, typically up to 130~160 DEG C.Due to denitrating system
Increase SO2To SO3Conversion ratio, that is, improve SO in flue gas3Concentration, and many power plant are control cost of electricity-generating, practical coal
The sulfur of kind is generally higher than design coal, and therefore, the acid dew point of many power plant is higher than exhaust gas temperature at present, leads to low-temperature corrosion
(acid dew piont corrosion) aggravation.
In addition, causing coal ash viscosity to enhance, in flue gas studies have shown that the above-mentioned acid solution overwhelming majority is first attached on coal ash
When flow velocity is lower, the coal ash for adhering to acid solution is largely deposited, and Ash Blocking in Air Preheater rate increases.
The prior art has been filed on a series of patent application of the anti-blocking gray technology of air preheaters including the applicant, but all
Be based on anti-blocking ash system process flow carry out protection, and to the structure feature of its core component sector hot bellows be related to compared with
It is few.
Utility model content
In order to further increase the anti-blocking grey performance of air preheater in the prior art, the utility model provides a kind of be used for back
The fan-shaped hot bellows of the anti-blocking ash of rotary air preheater and rotary regenerative air preheater comprising it.
In order to solve the above technical problems, technical solution used by the utility model is as follows:
A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater, fan-shaped hot bellows include fan
Shape hot wind sealing plate, the first bellows side plate, the second bellows side plate, bellows bottom plate and end closure plate；Fan-shaped hot wind sealing plate, first
Bellows side plate, bellows bottom plate and the second bellows side plate sequentially connect and surround the small loudspeaker tubbiness in the big one end in one end, wherein big
One end be big end, small one end is small end, the camber line of the direction of big end to small end and fan-shaped hot wind sealing plate to its central angle
Direction it is consistent；End closure plate is located at small end end and blocks small end, and big end is equipped with hot air inlet；Bellows bottom plate and fan
The radial direction of shape hot wind sealing plate is in 5-25 ° of angle；The fan angle of fan-shaped hot wind sealing plate is not less than air preheater rotor one
The angle of a storehouse lattice；The strip that is radially provided in the wherein a line of fan-shaped hot wind sealing plate along fan-shaped hot wind sealing plate lacks
Mouthful；
Fan-shaped hot bellows are mounted in rotary regenerative air preheater cold end secondary air separating storehouse, the radial direction of fan-shaped hot wind sealing plate
It is consistent with rotary regenerative air preheater rotor radial；Fan-shaped hot wind sealing plate upper, the first bellows side plate, the second bellows side plate,
Bellows bottom plate and end closure plate are under；It is fanned between one side jaggy and cold end First air and Secondary Air on fan-shaped hot wind sealing plate
Shape plate is adjacent, forms hot wind air nozzle；Fanning strip is fixed between the big end and cold end First air and Secondary Air of fan-shaped hot bellows connects
It connects, small end is overlapped on the rank frame between cold end air and flue gas, on-fixed connects.
Above-mentioned sector hot wind sealing plate, the first bellows side plate, bellows bottom plate and the second bellows side plate sequentially connect and surround
The small loudspeaker tubbiness in the big one end in one end, wherein fan-shaped hot wind sealing plate and bellows bottom plate are oppositely arranged, the first bellows side plate and
Two bellows side plates are oppositely arranged.
The application refer to up and down, top, the nouns of locality such as bottom, refer both to relative position when air preheater operates normally.Fan
Shape hot wind sealing plate is upper, and the first bellows side plate, the second bellows side plate, bellows bottom plate and end closure plate are under, namely normal fortune
When row, hot air inlet is in the lower section of fan-shaped hot wind sealing plate.
Loudspeaker tubbiness namely axial cross section are the tubbiness similar to " eight ".
As common sense, sector is made of two sides and a camber line, the side of sector hot wind sealing plate described herein with
The concept on the fan-shaped side in existing conventional conception is consistent, i.e., two sides of fan-shaped hot wind sealing plate radial direction.It is close along fan-shaped hot wind
Sealing plate is radially provided with a strip notch, i.e., the length direction of notch and fan-shaped hot wind sealing plate is radially consistent.
The big end of above-mentioned sector hot bellows is fixedly connected with fanning strip between cold end First air and Secondary Air, and small end is overlapped on
On rank frame between cold end air and flue gas, on-fixed connection, i.e., using big end as relative expansion dead point after fan-shaped hot bellows are heated,
To small end free wxpansion.
Above-mentioned sector hot bellows are mounted in rotary regenerative air preheater cold end secondary air separating storehouse, in cold end secondary air separating storehouse
The air themperature of flowing is usually no more than 50 DEG C, and the hot blast temperature to circulate in fan-shaped hot bellows is up to 250-350 DEG C, therefore,
There are differential expansions for fanning strip with respect between cold end First air and Secondary Air for fan-shaped hot bellows.Air preheater becomes extremely in order to prevent
Shape and the fan-shaped hot bellows mounting and adjusting convenience of guarantee, fixation, the big end of above-mentioned sector hot bellows are designed as fixing end, can
To small end free wxpansion, small end installation sliding support block constrains the direction of free wxpansion.
A side of above-mentioned notch fanning strip surrounds hot wind air nozzle, and anti-blocking ash hot wind is introduced from hot air inlet, from heat
Wind air nozzle uniformly, high speed ejection, heat and purges heat accumulating element from air preheater cold-end air, the product on removing heat accumulating element surface
Grey and acid solution (including H2SO4And NH4HSO4)。
In order to further increase the uniformity of above-mentioned hot wind air nozzle flow velocity and reduce drag losses, it is preferable that above-mentioned fan
The hot air inlet design mean flow rate of shape hot bellows big end is determined as 20~35m/s.
The small end of fan-shaped hot bellows is blocked by end closure plate, and big end is equipped with hot air inlet；Further preferably, big end is spacious
Mouth structure namely big end are directly as hot air inlet.
In order to avoid Standard error cause to seal it is imperfect, it is preferable that the fan angle of fan-shaped hot wind sealing plate is than empty
The angle of one storehouse lattice of air preheater rotor is 0-1 ° big.
Large coal-fired power plant air preheater rotor is mostly the 36 storehouse storehouse Ge Huo48 lattice structures at present, between each storehouse lattice by every
Plate separates.
It is preferred that the radial direction of bellows bottom plate and fan-shaped hot wind sealing plate is in 8~18 ° of angles.One end of the apex angle of angle namely
Osculum end.It can be further improved the uniformity of hot wind air nozzle flow velocity in this way and avoid dust stratification inside fan-shaped hot bellows.
It is preferred that the folder of the long side of the notch on fan-shaped hot wind sealing plate and cold end First air and Secondary Air fanning strip adjacent edge
Angle is 1.5-3 °, forms hot wind air nozzle.It can preferably guarantee the uniformity of outlet air in this way, while avoid inside fan-shaped hot bellows
Dust stratification.
The long side of above-mentioned notch: refer to the side in notch length direction, it is preferable that notch is surrounded by three sides, wherein two are short
Side, one be long side, formed trapezoidal or bottom edge be camber line trapezoidal shape；Or notch is surrounded by two sides, wherein a line is length
Side a line is short side, forms triangle or fan shape notch.
In order to guarantee the effect of the anti-blocking ash of the utility model and take into account to reduce system resistance loss, it is preferable that fan-shaped hot wind is close
The long side and cold end First air of notch on sealing plate and the angle of Secondary Air fanning strip adjacent edge are 2-2.5 °.In above-mentioned angle model
In enclosing, easily guarantee that hot wind air nozzle flow velocity is uniform, drag losses are small, and the high local flow velocities formed are conducive to improve anti-blocking ash effect
Fruit.
It is preferred that fanning strip between the upper surface of fan-shaped hot wind sealing plate and cold end First air and Secondary Air adjacent thereto
Upper surface is located in same level height.
In order to further decrease the abnormal deformation amount of air preheater, the first bellows side plate and cold end one of fan-shaped hot bellows
Thermal insulation layer is equipped between secondary wind and Secondary Air between truss.Reduce the heat for passing to truss between cold end First air and Secondary Air
Amount, to reduce heat distortion amount.
Rotary regenerative air preheater that the application refers to and its cold end secondary air separating storehouse, cold end First air and Secondary Air it
Between rank frame between fanning strip, air and flue gas, truss, storehouse lattice etc. are the prior art between cold end First air and Secondary Air.
It is preferred that the length of the first bellows side plate, the second bellows side plate and bellows bottom plate is respectively less than fan-shaped hot wind sealing plate, fan
Shape hot wind sealing plate, the first bellows side plate, the second bellows side plate and bellows bottom plate are neat end setting in big opening end.Qi Duan, that is, end
The meaning flushed.Further preferably, the first bellows side plate, the second bellows side plate and bellows bottom plate are neat end setting at osculum end,
The fan-shaped hot wind sealing plate length at osculum end exceeds the first bellows side plate, the second bellows side plate and bellows bottom plate.
The unmentioned technology of the utility model is referring to the prior art.
A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater of the utility model, structure are set
Advantages of simple is counted, have the advantages that flow resistance is small, air distribution is uniform and improves anti-blocking ash content storehouse sealing effect, to improve anti-
Stifled ash effect.
Detailed description of the invention:
Fig. 1 is the perspective view of the utility model sector hot bellows；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the right view of Fig. 1；
In figure, 1- sector hot wind sealing plate, 2- the first bellows side plate, 3- the second bellows side plate, 4- bellows bottom plate, the end 5-
Closure plate, 6- cold end First air and Secondary Air fanning strip, 7- hot wind air nozzle.
Specific embodiment
The utility model in order to better understand furthers elucidate the content of the utility model below with reference to embodiment, but
The content of the utility model is not limited solely to the following examples.
As shown in Figure 1-3, the mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater, fan-shaped hot wind
Case includes fan-shaped hot wind sealing plate, the first bellows side plate, the second bellows side plate, bellows bottom plate and end closure plate；Fan-shaped hot wind is close
Sealing plate, the first bellows side plate, bellows bottom plate and the second bellows side plate sequentially connect and surround the small loudspeaker bucket in the big one end in one end
Shape, wherein big one end is big end, small one end is small end, the camber line in the direction of big end to small end and fan-shaped hot wind sealing plate
It is consistent to the direction of its central angle；End closure plate is located at small end end and blocks small end, and big end is equipped with hot air inlet, excellent
Choosing, big end is uncovered structure namely big end directly as hot air inlet；Bellows bottom plate and the radial direction of fan-shaped hot wind sealing plate are in
5-25 ° of angle, can be further improved in this way by preferably 8~18 ° (in different practices, selecting 10 °, 15 ° and 18 ° respectively)
The uniformity of above-mentioned hot wind air nozzle flow velocity and avoid dust stratification inside fan-shaped hot bellows；The fan angle of fan-shaped hot wind sealing plate
Not less than the angle of one storehouse lattice of air preheater rotor, it is preferable that the fan angle of fan-shaped hot wind sealing plate compares air preheater
The angle of one storehouse lattice of rotor is 0-1 ° big (in different practices, selecting 0 °, 0.5 ° and 1 ° respectively)；Fan-shaped hot wind sealing plate its
A strip notch is radially provided with along fan-shaped hot wind sealing plate in middle a line；
Fan-shaped hot bellows are mounted in rotary regenerative air preheater cold end secondary air separating storehouse, the radial direction of fan-shaped hot wind sealing plate
It is consistent with rotary regenerative air preheater rotor radial；Fan-shaped hot wind sealing plate upper, the first bellows side plate, the second bellows side plate,
Bellows bottom plate and end closure plate are under；It is fanned between one side jaggy and cold end First air and Secondary Air on fan-shaped hot wind sealing plate
Shape plate is adjacent, forms hot wind air nozzle；Fanning strip is fixed between the big end and cold end First air and Secondary Air of fan-shaped hot bellows connects
It connects, small end is overlapped on the rank frame between cold end air and flue gas, on-fixed connection, i.e., is with big end after fan-shaped hot bellows are heated
Relative expansion dead point, to small end free wxpansion；Between the first bellows side plate and cold end First air and Secondary Air of fan-shaped hot bellows
It is equipped with thermal insulation layer between truss, the heat for passing to truss between cold end First air and Secondary Air is reduced, to reduce thermal deformation
Amount.
Above-mentioned sector hot wind sealing plate, the first bellows side plate, bellows bottom plate and the second bellows side plate sequentially connect and surround
The small loudspeaker tubbiness in the big one end in one end, wherein fan-shaped hot wind sealing plate and bellows bottom plate are oppositely arranged, the first bellows side plate and
Two bellows side plates are oppositely arranged.
It is preferred that the folder of the long side of the notch on fan-shaped hot wind sealing plate and cold end First air and Secondary Air fanning strip adjacent edge
Angle is 1.5-3 °, forms hot wind air nozzle；Further preferably, the long side of the notch on fan-shaped hot wind sealing plate and cold end First air
Angle with Secondary Air fanning strip adjacent edge is 2-2.5 ° (in different practices, selecting 2 °, 2.3 ° or 2.5 ° respectively).Above-mentioned
In angular range, easily guarantee that hot wind air nozzle flow velocity is uniform, drag losses are small, and the high local flow velocities formed are conducive to raising and prevent
Stifled ash effect.The long side of aforementioned notch: refer to the side in notch length direction, it is preferable that notch is surrounded by three sides, wherein two are
Short side, one be long side, formed trapezoidal or a line be camber line trapezoidal shape；Or notch is surrounded by two sides, wherein a line
It is short side for long side a line, forms triangle or fan shape notch.
The length of first bellows side plate, the second bellows side plate and bellows bottom plate is respectively less than fan-shaped hot wind sealing plate, and first
Bellows side plate, the second bellows side plate and bellows bottom plate are isosceles trapezoid shape, fan-shaped hot wind sealing plate, the first bellows side plate,
Two bellows side plates and bellows bottom plate are arranged in big opening end for neat end, and the first bellows side plate, the second bellows side plate and bellows bottom plate exist
Osculum end is neat end setting, and the fan-shaped hot wind sealing plate length at osculum end exceeds the first bellows side plate, the second bellows side plate and wind
Bottom plate.
The upper table of fanning strip between the upper surface of fan-shaped hot wind sealing plate and cold end First air and Secondary Air adjacent thereto
Face is located in same level height.The hot air inlet design mean flow rate of fan-shaped hot bellows big end is determined as 20~35m/s, this
Sample can be further improved the uniformity of above-mentioned hot wind air nozzle flow velocity and reduce drag losses.
Anti-blocking ash hot wind is introduced from big end equipped with hot air inlet, and from hot wind air nozzle, uniform, high speed ejection, pre- from air
Hot device cold end heats and purges heat accumulating element, removes the dust stratification and acid solution (including H on heat accumulating element surface2SO4And NH4HSO4)。
Ash transformation anti-blocking for 300MW unit air preheater, carries out as follows:
1. designing according to air preheater internal structure and manufacturing fan-shaped hot wind sealing plate, length meets the requirements, that is, fans
The big end of shape hot wind sealing plate is aligned with the former big end margin of fanning strip, and small end is placed exactly on rotor truss.
2. fan-shaped hot wind sealing plate has opened up notch, fanning strip between notch and cold end First air and Secondary Air during fabrication
It is adjacent, form air nozzle.
3. installing positioning plate on former fanning strip (fanning strip between cold end First air and Secondary Air) bottom supporting surface, make
For the support and positioning reference of fan-shaped hot wind sealing plate.
4. being laid with insulating layer on the supporting surface of former fanning strip bottom, and erecting and welding the first bellows side plate.
5. the fan-shaped hot wind sealing plate made is placed on positioning plate, and neat with former fanning strip edge patch, upper surface
Leveling is kept with the upper surface of former fanning strip in same level height.
6. it is welded and fixed together by the big end of fixed sectors hot wind sealing plate with big end and the side of former fanning strip,
Expansion dead point is formed, small end setting expansion position limiting slide block guarantees that hot wind sealing plate can be freely swollen under the guiding of position limiting slide block
It is swollen.
7. installing bottom plate, closure plate and the second bellows side plate of fan-shaped hot bellows, being welded as a whole, it is anti-blocking to form
Grey sector hot bellows.
8. in the fan-shaped hot bellows bottom installation support channel steel load-bearing of anti-blocking ash.
By it was verified that the above-mentioned fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater, structure design are simple
Rationally, have the advantages that flow resistance is small, air distribution is uniform and improves anti-blocking ash content storehouse sealing effect, to improve anti-blocking ash
Effect.
Claims (9)
1. a kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater, it is characterised in that: fan-shaped heat
Bellows include fan-shaped hot wind sealing plate, the first bellows side plate, the second bellows side plate, bellows bottom plate and end closure plate；Fan-shaped hot wind
Sealing plate, the first bellows side plate, bellows bottom plate and the second bellows side plate sequentially connect and surround the small loudspeaker bucket in the big one end in one end
Shape, wherein big one end is big end, small one end is small end, the camber line in the direction of big end to small end and fan-shaped hot wind sealing plate
It is consistent to the direction of its central angle；End closure plate is located at small end end and blocks small end, and big end is equipped with hot air inlet；Wind
The radial direction of bottom plate and fan-shaped hot wind sealing plate is in 5-25 ° of angle；The fan angle of fan-shaped hot wind sealing plate is pre- not less than air
The angle of hot one storehouse lattice of device rotor；Being radially provided with along fan-shaped hot wind sealing plate in the wherein a line of fan-shaped hot wind sealing plate
One strip notch；
Fan-shaped hot bellows are mounted in rotary regenerative air preheater cold end secondary air separating storehouse, the radial direction of fan-shaped hot wind sealing plate with return
Rotary air preheater rotor radial is consistent；Fan-shaped hot wind sealing plate is in upper, the first bellows side plate, the second bellows side plate, bellows
Bottom plate and end closure plate are under；Fanning strip between one side jaggy and cold end First air and Secondary Air on fan-shaped hot wind sealing plate
Adjacent, formation hot wind air nozzle；Fanning strip is fixedly connected between the big end of fan-shaped hot bellows and cold end First air and Secondary Air, small
End is overlapped on the rank frame between cold end air and flue gas, on-fixed connects.
2. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as described in claim 1, special
Sign is: the fan angle of fan-shaped hot wind sealing plate is 0-1 ° bigger than the angle of one storehouse lattice of air preheater rotor.
3. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 1 or 2,
Be characterized in that: the radial direction of bellows bottom plate and fan-shaped hot wind sealing plate is in 8~18 ° of angles.
4. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 1 or 2,
Be characterized in that: the long side of the notch on fan-shaped hot wind sealing plate and the angle of cold end First air and Secondary Air fanning strip adjacent edge are
1.5-3 °, form hot wind air nozzle.
5. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 4, special
Sign is: the angle of the long side of the notch on fan-shaped hot wind sealing plate and cold end First air and Secondary Air fanning strip adjacent edge is 2-
2.5°。
6. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 1 or 2,
It is characterized in that: the upper table of fanning strip between the upper surface of fan-shaped hot wind sealing plate and cold end First air and Secondary Air adjacent thereto
Face is located in same level height.
7. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 1 or 2,
It is characterized in that: being equipped with thermal insulation layer between the first bellows side plate and cold end First air and Secondary Air of fan-shaped hot bellows between truss.
8. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 1 or 2,
Be characterized in that: the length of the first bellows side plate, the second bellows side plate and bellows bottom plate is respectively less than fan-shaped hot wind sealing plate, fan-shaped heat
Wind sealing plate, the first bellows side plate, the second bellows side plate and bellows bottom plate are neat end setting in big end.
9. the mounting structure for the fan-shaped hot bellows of the anti-blocking ash of rotary regenerative air preheater as claimed in claim 8, special
Sign is: the first bellows side plate, the second bellows side plate and bellows bottom plate are neat end setting, the fan-shaped hot wind sealing of small end in small end
Plate length exceeds the first bellows side plate, the second bellows side plate and bellows bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820711052.3U CN208312431U (en) | 2018-05-14 | 2018-05-14 | A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820711052.3U CN208312431U (en) | 2018-05-14 | 2018-05-14 | A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater |
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| Publication Number | Publication Date |
|---|---|
| CN208312431U true CN208312431U (en) | 2019-01-01 |
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ID=64711370
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|---|---|---|---|
| CN201820711052.3U Active CN208312431U (en) | 2018-05-14 | 2018-05-14 | A kind of mounting structure of the fan-shaped hot bellows for the anti-blocking ash of rotary regenerative air preheater |
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| CN (1) | CN208312431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719282A (en) * | 2022-03-25 | 2022-07-08 | 河北邯峰发电有限责任公司 | Isolation sector plate and static sealing method |
-
2018
- 2018-05-14 CN CN201820711052.3U patent/CN208312431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719282A (en) * | 2022-03-25 | 2022-07-08 | 河北邯峰发电有限责任公司 | Isolation sector plate and static sealing method |
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