CN208652614U - A kind of utilize takes out the anti-blocking air preheater that leaks out - Google Patents
A kind of utilize takes out the anti-blocking air preheater that leaks out Download PDFInfo
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- CN208652614U CN208652614U CN201821203655.9U CN201821203655U CN208652614U CN 208652614 U CN208652614 U CN 208652614U CN 201821203655 U CN201821203655 U CN 201821203655U CN 208652614 U CN208652614 U CN 208652614U
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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 to be leaked out anti-blocking air preheater using taking out, including anti-blocking grey bellows, is taken out the machine that leaks out, taken out to leak out and completely cut off door, hot Secondary Air branch Men He general pipeline；Anti-blocking ash bellows are located at rotor cold end and adjacent with First air/Secondary Air side cold end sector plate, and the upper surface and First air/Secondary Air side cold end sector plate upper surface of anti-blocking ash bellows top plate flush, and the top plate of anti-blocking ash bellows is equipped with air nozzle；The middle position of fume side hot end fanning strip, which is equipped with, takes out the entrance that leaks out；The one end general pipeline is connected to hot Secondary Air main pipe, the other end branches into the first branch and second branch；The first branch leads to pumping and leaks out entrance, and second branch leads to anti-blocking grey bellows；Hot Secondary Air branch door is located on the general pipeline before branch；Pumping, which is leaked out, to be completely cut off door and sets on the first leg；The pumping machine that leaks out is located in second branch.The jet stream for the high-temperature high-flow rate that the application is sprayed using air nozzle purges cold end heat accumulating element, removes the hydrogen sulfate ammonia of attachment, anti-blocking ash effect is good, air leak rate of air curtain is low, easy implementation.
Description
Technical field
The utility model relates to a kind of to be leaked out anti-blocking air preheater using taking out, belong to air-heater leakage administer and
Anti-blocking gray technology field.
Background technique
Rotary regenerative air preheater (referred to as " air preheater ") is a kind of heat-exchange apparatus for large-sized station boiler,
Air needed for it heats burning using the heat of boiler smoke, the efficiency of boiler is improved with this.
Air preheater realizes the company of the continuous heat absorption and flue gas of air using the rotor continuous rotation for loading heat accumulating element
Continuous heat release, all heat accumulating elements are generally loaded in 36 or 48 rotor compartments, i.e., each rotor storehouse lattice be generally 10 ° or
7.5 ° of sector.In rotor storehouse, lattice are radially respectively arranged with apex seal, cooperatively form sealing pair with air preheater fanning strip, subtract
Leakage of the small air to flue gas.
Air 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 tight
Again etc., these problems affect the safe and economical operation of air preheater and entire boiler system 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,
Air preheater running environment changes, and above-mentioned stifled grey problem becomes especially prominent, 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, 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
It is quite prominent to block up ash problem for (acid dew piont corrosion) aggravation.
At runtime, rotor constantly rotates rotary regenerative air preheater, the lasting high temperature by hot wind side of upper rotor surface
The heating of flue gas, temperature are higher；And the lower surface of rotor is also continually subjected to the cooling of first and second cold wind of cold wind side, temperature is lower.
Allow in this way rotor top thermal expansion be greater than lower part thermal expansion, this torque cause rotor using lower part as origin occur to
Under, outside overturning deformation, the dead-load moment of rotor, more accelerates hot change of this row like " mushroom " of rotor in addition
Shape.In the hot shaping of this " mushroom ", downward sedimentation phenomenon occurs for the periphery of air preheater rotor, and rotor center is sent out
Raw protuberance.The leak out axial direction gap of leaking out of gap and rotor circumference of the triangle of rotor lower part becomes than cold when this allows for hot
It is small when state, and when gap of leaking out on rotor top becomes than cold conditions, is big.And with the raising of boiler load, air preheater rotor is changed
The increase of heat, above-mentioned " mushroom " deformation are just more obvious, and the variation in gap of leaking out everywhere is also bigger.Therefore this to leak out
Occur mainly in the hot end of air preheater, that is, top, and the leakage of upper fan template is hot wind after preheating, hot wind
A large amount of leakages will directly reduce the efficiency of combustion of boiler, while increasing blower power consumption, and this deform with boiler load
It increases and increases, wherein the source of mainly leaking out leaked out as air preheater at the fanning strip of fume side hot end.
Utility model content
In order to solve the problems, such as that the air-leakage control and stifled ash of present air preheater, the utility model provide a kind of utilize and take out
Leak out anti-blocking air preheater.
In order to solve the above technical problems, technical solution used by the utility model is as follows:
It is a kind of to be leaked out anti-blocking air preheater using taking out, it is fan-shaped including rotor, the fume side hot end for being located at hot end of rotor
Plate, the First air/Secondary Air side cold end sector plate for being located at rotor cold end and the hot Secondary Air main pipe being located at outside rotor, further include preventing
Stifled ash bellows take out the machine that leaks out, take out to leak out and completely cut off door, hot Secondary Air branch Men He general pipeline；
Anti-blocking ash bellows are located at rotor cold end and, anti-blocking ash bellows top adjacent with First air/Secondary Air side cold end sector plate
The upper surface of plate and First air/Secondary Air side cold end sector plate upper surface flush, and the top plate of anti-blocking ash bellows is equipped with spray wind
Mouthful；
The middle position of fume side hot end fanning strip, which is equipped with, takes out the entrance that leaks out；
The one end general pipeline is connected to hot Secondary Air main pipe, the other end branches into the first branch and second branch；Wherein, first
Road leads to pumping and leaks out entrance, and second branch leads to anti-blocking grey bellows；
Hot Secondary Air branch door is located on the general pipeline before branch；Pumping, which is leaked out, to be completely cut off door and sets on the first leg；Pumping is leaked out machine
It is located in second branch.
The application up and down, left and right, top, the nouns of locality such as bottom refer both to the relative position of air preheater normal use.
When the top plate namely air preheater use state of anti-blocking ash bellows, it is located at extreme higher position on anti-blocking ash bellows
Form plate.The first branch leads to that pumping leaks out entrance namely first branch one end separates from general pipeline, is connected to general pipeline, the other end into
Enter pumping to leak out entrance.Second branch leads to anti-blocking grey bellows namely second branch one end separates from general pipeline, is connected to general pipeline, separately
One end enters anti-blocking grey bellows.
As common sense, existing air preheater, fume side hot end fanning strip, First air/bis- generally all including hot end of rotor
Secondary wind side cold end sector plate and hot Secondary Air main pipe, the application repeat no more highly developed prior art part.
Applicant it has been investigated that, anti-blocking grey bellows are placed on and rotor cold end First air/Secondary Air cold end sector plate
Adjacent position, rather than it is adjacent with fume side, it can avoid that the problem of cold end hot wind is leaked to fume side occurs, so that control is average
Therefore exhaust gas temperature does not rise, ensure that boiler efficiency is unaffected.
Leaked out anti-blocking air preheater using above-mentioned pumping, and leaking out at the fanning strip of hot end is collected and is taken away as anti-
The wind regime of stifled ash system can also administer air preheater air leakage problem while solving the problems, such as that air preheater is stifled grey.
The hot wind of above-mentioned pumping leakage fans entrance is mentioned by leaking out for fume side hot end fanning strip extraction under normal operating conditions
For providing supplement wind regime by hot Secondary Air main pipe when the inleakage deficiency of extraction.
When air preheater is there is no grey risk is blocked up, above-mentioned pumping, which is leaked out, completely cuts off door closing, and hot Secondary Air branch door is closed,
Pumping leak out machine stoppage in transit, in this operating mode, it is out of service to be equivalent to anti-blocking system；When air preheater has stifled grey risk
When, it opens to take out to leak out and completely cuts off door, opens to take out and leak out machine, the pumping machine that leaks out from the pumping of the fume side hot end fanning strip entrance that leaks out extracts leakage
Wind is sent after pressurization to the anti-blocking grey bellows of cold end；If unit load is lower, when the inleakage deficiency of extraction, hot Secondary Air is opened
Branch door supplements hot Secondary Air into anti-blocking grey bellows；In this operating mode, 300 DEG C or so of extraction leak out and/or heat
Secondary Air sprays from the air nozzle of the anti-blocking grey bellows fanning strip of cold end, forms the Gas Jet of high temperature, high flow rate, purge upwards
Heat accumulating element establishes localized hyperthermia, high-flow area inside air preheater rotor, makes to be deposited on heat accumulating element surface
Acid dust stratification becomes loosely, to carry and removed under the action of high flow rate；Due to air preheater rotor continuous rotation, every rotation
The heat accumulating element that turns around obtains primary complete purging, and avoiding dust stratification aggravation leads to stifled ash.
In order to guarantee the hot wind for anti-blocking ash not with cold secondary air flow mixing, the above-mentioned anti-blocking grey fan-shaped cabinet knot of bellows
The top plate of structure, anti-blocking ash bellows is fanning strip.
In order to improve the heat exchange efficiency of air preheater, the central angle of anti-blocking ash bellows top plate is greater than a rotor Cang Gejiao
Less than two rotor storehouse lattice angles are spent, it is close to guarantee that rotor any time has the top plate of two groups of diaphragm seals and anti-blocking grey bellows to be formed
Envelope cooperation.
Large coal-fired power plant air preheater rotor is mostly the 36 storehouse storehouse Ge Huo48 lattice structures, i.e., each rotor storehouse lattice one at present
As be 10 ° or 7.5 ° of sector, pass through partition separation between each storehouse lattice.
Air nozzle on anti-blocking ash bellows top plate is fan-shaped air nozzle.Applicant it has been investigated that, can be formed so higher
The jet stream of speed, to reach the grey effect of preferably anti-gambling.
Further preferably, the central angle of fan-shaped air nozzle is 1.5~4 °, with this guarantee to enter the hot winds of anti-blocking grey bellows from
Spray sealing is sprayed to homogenous linear with high flow rate, when the rotor rotates, purging covering comprehensively can be carried out to heat accumulating element.More
It is preferred that the central angle of fan-shaped air nozzle is 2~3 °.
Heat accumulating element on air preheater is existing common sense.
As common sense, fan-shaped circular arc pair angle be central angle.
The top plate of above-mentioned anti-blocking grey bellows and First air/Secondary Air side cold end sector plate fitting and anti-blocking grey bellows top plate
Upper surface and First air/Secondary Air side cold end sector plate upper surface flush, cooperate with the apex seal of air preheater,
Sealing pair is formed, guarantees to reduce leaking out between cold end seal piece and fanning strip with this.
The existing concept that the apex seal right and wrong of air preheater are usually advised.
Above-mentioned pumping is leaked out in anti-blocking grey scheme, and pumping is opened up among the fanning strip of fume side hot end and is leaked out entrance, pumping leak out into
Opening's edge fume side hot end fanning strip be arranged radially and fan-shaped shape, take out leak out entrance central angle be 2 °~8 °, position occupy
Among the fanning strip of fume side hot end, two sides are arranged symmetrically, and guarantee along rotor seal in the radial direction, to leak out with this
It is even fully to extract out.Further preferably, the central angle for taking out the entrance that leaks out is 4 °~6 °.
Above-mentioned pumping is leaked out in anti-blocking grey scheme, and when unit load is lower, what fume side hot end fanning strip extracted leaks out not
When foot maintains the air quantity of anti-blocking ash system, hot Secondary Air can be extracted as compensation, is maintained by opening hot Secondary Air branch door
Anti-blocking ash system air quantity.
The jet stream for the high-temperature high-flow rate that the application is sprayed using air nozzle, purges cold end heat accumulating element, removes attached
Heat accumulating element surface hydrogen sulfate ammonium precipitation product, air leak rate of air curtain good with anti-blocking grey effect, reducing air preheater simultaneously, drop
Low exhaust gas temperature improves boiler efficiency, the low equal significant advantages of engineering construction difficulty.
The component of all fan-shaped structures of the application, such as top plate, the fan-shaped spray wind of anti-blocking grey bellows, anti-blocking grey bellows
Mouth takes out the entrance etc. that leaks out, and direction of each fan-shaped part from circular arc to central angle is directed to rotor axis.
Applicants have found that taking out the technical solution for the anti-blocking ash that leaks out, can preferably solve the problems, such as to leak out and block up ash, specific body
It is present:
1, the concentration of the acid gas-containing that leaks out of the hot wind or fume side of hot Secondary Air main pipe is minimum, be conducive to sulfuric acid and
The gasification of ammonium hydrogen sulfate；
2, it is leaked out anti-blocking design using pumping, the pressure of leaking out extracted from fume side hot end fanning strip takes out leakage in 1kPa or so
Fan pressure head is in 4kPa or so, it is ensured that can be complete from heat primary air and hot Secondary Air leaking out at the fanning strip of air preheater hot end
Portion is taken out the machine that leaks out and is taken away, and the hot wind leakage rate of fume side is reduced.
3, it is leaked out anti-blocking design using pumping, the position for taking out the hot Secondary Air that machine is extracted of leaking out is unrestricted, can be according to existing
Field space is adjusted flexibly, and the arrangement in air duct is relatively easy to, and air preheater, without change, project amount is small.
The unmentioned technology of the utility model is referring to the prior art.
The utility model is leaked out anti-blocking air preheater using taking out, by leaking out to collect and take away at the fanning strip of hot end
Air preheater air leakage problem can also be administered while solving the problems, such as that air preheater is stifled grey as the wind regime of anti-blocking ash system, it is anti-blocking
Grey effect is good, reduces the air leak rate of air curtain of preheater, and the influence to exhaust gas temperature is small, engineering construction difficulty is low.
Detailed description of the invention
Fig. 1 is that the application utilizes the system diagram for taking out the anti-blocking air preheater that leaks out.
Fig. 2 is that the application utilizes the sector plate structure figure for taking out the anti-blocking air preheater that leaks out.
Fig. 3 is the installation site and structural schematic diagram of the anti-blocking grey bellows of the application.
In figure: 1- fume side fanning strip；11- takes out the entrance that leaks out；12- flue gas hot end side fanning strip；13- fume side cold end fan
Shape plate；The hot end 14- apex seal；15- leaks out in hot end；2- First air/Secondary Air side fanning strip；21- First air/Secondary Air side
Hot end fanning strip；22- First air/Secondary Air side cold end sector plate；The anti-blocking grey bellows fanning strip of 3-；The anti-blocking grey bellows of 31-；32-
Anti-blocking ash bellows air nozzle；The hot Secondary Air main pipe of 4-；The hot Secondary Air branch door of 41-；42- pumping, which is leaked out, completely cuts off door；43- pumping is leaked out
Machine.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment 1
As shown in Figure 1-3, leak out anti-blocking air preheater using taking out, including rotor, it is located at the fume side of hot end of rotor
Hot end fanning strip, the First air/Secondary Air side cold end sector plate for being located at rotor cold end and the hot Secondary Air main pipe being located at outside rotor,
Further include anti-blocking grey bellows, take out the machine that leaks out, take out to leak out and completely cut off door, hot Secondary Air branch Men He general pipeline；
The top plate of the fan-shaped body structure of anti-blocking ash bellows, anti-blocking ash bellows is fanning strip；Anti-blocking ash bellows are located at rotor
It cold end and is fitted closely with First air/Secondary Air side cold end sector plate, the upper surface of anti-blocking ash bellows top plate and First air/bis-
The upper surface of secondary wind side cold end sector plate flushes, and the top plate of anti-blocking ash bellows and the apex seal of air preheater are formed and sealed
It is secondary；The top plate of anti-blocking ash bellows is equipped with fan-shaped air nozzle；The central angle of anti-blocking ash bellows top plate is greater than a rotor Cang Gejiao
Less than two rotor storehouse lattice angles are spent, it is close to guarantee that rotor any time there are two groups of diaphragm seals to be formed with anti-blocking grey bellows fanning strip
Envelope cooperation；The central angle of fan-shaped air nozzle is 1.5~4 ° and (in different practices, selects 2 ° or 3 ° respectively, through practicing, prevent in this way
It is best to gamble grey effect)；
The middle position of fume side hot end fanning strip is radially equipped with sector and takes out the entrance that leaks out, and takes out the central angle for the entrance that leaks out
For 2 °~8 ° (in different practices, select 4 °, 5 ° or 6 ° respectively, through practicing, can reduce leak out to the maximum extent in this way)；
The one end general pipeline is connected to hot Secondary Air main pipe, the other end branches into the first branch and second branch；Wherein, first
Road leads to pumping and leaks out entrance, and second branch leads to anti-blocking grey bellows；
Hot Secondary Air branch door is located on the general pipeline before branch；Pumping, which is leaked out, to be completely cut off door and sets on the first leg；Pumping is leaked out machine
It is located in second branch.
Applicant it has been investigated that, anti-blocking grey bellows are placed on and rotor cold end First air/Secondary Air cold end sector plate
Adjacent position, rather than it is adjacent with fume side, it can avoid that the problem of cold end hot wind is leaked to fume side occurs, so that control is average
Therefore exhaust gas temperature does not rise, ensure that boiler efficiency is unaffected.
The hot wind of above-mentioned pumping leakage fans entrance is mentioned by leaking out for fume side hot end fanning strip extraction under normal operating conditions
For providing supplement wind regime by hot Secondary Air main pipe when the inleakage deficiency of extraction.
When air preheater is in the presence of grey risk is blocked up, opening, which takes out to leak out, completely cuts off door, and it is fan-shaped from fume side hot end to take out the machine that leaks out
The entrance extraction of leaking out of the pumping of plate is leaked out, and is sent after pressurization to the anti-blocking grey bellows of cold end；If unit load is lower, the inleakage of extraction
When insufficient, hot Secondary Air branch door is opened, supplements hot Secondary Air into anti-blocking grey bellows；In this operating mode, extraction
300 DEG C or so leak out and/or hot Secondary Air, sprayed from the air nozzle of the anti-blocking grey bellows fanning strip of cold end, form high temperature, Gao Liu
The Gas Jet of speed, purges heat accumulating element upwards, localized hyperthermia, high-flow area is established inside air preheater rotor,
The acid dust stratification for being deposited on heat accumulating element surface is set to become loosely, to carry and removed under the action of high flow rate；Due to air
Preheater rotor continuous rotation, heat accumulating element obtains primary complete purging for each revolution, and avoiding dust stratification aggravation causes to block up
Ash.
Above-mentioned utilize takes out the anti-blocking air preheater that leaks out, and leaking out at the fanning strip of hot end is collected and is taken away as anti-
The wind regime of stifled ash system can also administer air preheater air leakage problem, anti-blocking ash effect while solving the problems, such as that air preheater is stifled grey
Well, air leak rate of air curtain is reduced, the influence to exhaust gas temperature is small, engineering construction difficulty is low.
Claims (10)
1. a kind of leaked out anti-blocking air preheater using taking out, including rotor, the fume side hot end fanning strip that is located at hot end of rotor,
It is located at First air/Secondary Air side cold end sector plate of rotor cold end and the hot Secondary Air main pipe being located at outside rotor, it is characterised in that:
Further include anti-blocking grey bellows, take out the machine that leaks out, take out to leak out and completely cut off door, hot Secondary Air branch Men He general pipeline；
Anti-blocking ash bellows are located at rotor cold end and adjacent with First air/Secondary Air side cold end sector plate, anti-blocking ash bellows top plate
Upper surface and First air/Secondary Air side cold end sector plate upper surface flush, and the top plate of anti-blocking ash bellows is equipped with air nozzle；
The middle position of fume side hot end fanning strip, which is equipped with, takes out the entrance that leaks out；
The one end general pipeline is connected to hot Secondary Air main pipe, the other end branches into the first branch and second branch；Wherein, the first branch is logical
It leaks out entrance to pumping, second branch leads to anti-blocking grey bellows；
Hot Secondary Air branch door is located on the general pipeline before branch；Pumping, which is leaked out, to be completely cut off door and sets on the first leg；The pumping machine that leaks out is located at
In second branch.
2. as described in claim 1 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: anti-blocking ash bellows are fan-shaped
Body structure.
3. as claimed in claim 1 or 2 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: anti-blocking ash bellows
Top plate is fanning strip.
4. as claimed in claim 3 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: anti-blocking ash bellows top plate
Central angle is greater than less than two rotor storehouse lattice angles of a rotor storehouse lattice angle.
5. as claimed in claim 3 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: the top plate of anti-blocking ash bellows
It is equipped with fan-shaped air nozzle.
6. as claimed in claim 5 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: the center of circle of fan-shaped air nozzle
Angle is 1.5~4 °.
7. as claimed in claim 6 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: the center of circle of fan-shaped air nozzle
Angle is 2~3 °.
8. as claimed in claim 3 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: the top plate of anti-blocking ash bellows
With the upper surface and First air/Secondary Air side cold end of First air/Secondary Air side cold end sector plate fitting and anti-blocking grey bellows top plate
The upper surface of fanning strip flushes, and the top plate of anti-blocking ash bellows and the apex seal of air preheater form sealing pair.
9. as claimed in claim 1 or 2 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: pumping is leaked out into opening's edge
Fume side hot end fanning strip be arranged radially and fan-shaped shape, take out leak out entrance central angle be 2 °~8 °.
10. as claimed in claim 9 utilize takes out the anti-blocking air preheater that leaks out, it is characterised in that: take out the circle for the entrance that leaks out
Heart angle is 4 °~6 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821203655.9U CN208652614U (en) | 2018-07-27 | 2018-07-27 | A kind of utilize takes out the anti-blocking air preheater that leaks out |
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|---|---|---|---|
| CN201821203655.9U CN208652614U (en) | 2018-07-27 | 2018-07-27 | A kind of utilize takes out the anti-blocking air preheater that leaks out |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094752A (en) * | 2019-05-29 | 2019-08-06 | 西安热工研究院有限公司 | A kind of automatic control air preheater sealing and anti-blocking system and control method |
| CN111189062A (en) * | 2020-03-03 | 2020-05-22 | 南京科远智慧科技集团股份有限公司 | Method for monitoring influence of denitration ammonia escape on downstream rotary air preheater |
| 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
- 2018-07-27 CN CN201821203655.9U patent/CN208652614U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094752A (en) * | 2019-05-29 | 2019-08-06 | 西安热工研究院有限公司 | A kind of automatic control air preheater sealing and anti-blocking system and control method |
| CN111189062A (en) * | 2020-03-03 | 2020-05-22 | 南京科远智慧科技集团股份有限公司 | Method for monitoring influence of denitration ammonia escape on downstream rotary air preheater |
| CN111189062B (en) * | 2020-03-03 | 2021-06-18 | 南京科远智慧科技集团股份有限公司 | Method for monitoring influence of denitration ammonia escape on downstream rotary air preheater |
| 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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