CN207006219U - Air preheater hot blast automatic block clearing anti-blocking system - Google Patents
Air preheater hot blast automatic block clearing anti-blocking system Download PDFInfo
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- CN207006219U CN207006219U CN201721236720.3U CN201721236720U CN207006219U CN 207006219 U CN207006219 U CN 207006219U CN 201721236720 U CN201721236720 U CN 201721236720U CN 207006219 U CN207006219 U CN 207006219U
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- air
- hot blast
- block clearing
- region
- air preheater
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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
Abstract
The utility model provides a kind of air preheater high-temperature hot-air automatic block clearing anti-blocking system, include block clearing hot blast supply unit, control unit, temperature measuring equipment and spray hot wind unit including the anti-blocking module of block clearing and with the one-to-one air preheater of the anti-blocking module of the block clearing, the anti-blocking module of block clearing；Air preheater outlet hot blast is transferred to the air preheater by the block clearing hot blast supply unit, heat transfer element is heated and purged in the air preheater, the hot blast is transferred to the block clearing high-temperature blower by the volume adjusting apparatus, the block clearing high-temperature blower blows the hot blast to spray hot wind unit, spray hot wind unit and the hot blast is sprayed into the heat transfer element wall temperature lowest side.Compared with correlation technique：The online block clearing anti-blocking system of air preheater provided by the utility model can prevent heat transfer element fouling and clogging, and protect heat transfer element that low-temperature corrosion does not occur, while be purged the black dirt being deposited on heat transfer element using high-pressure hot wind.
Description
Technical field
It the utility model is related to boiler air preheater technical field, more particularly to a kind of rotary regenerative air preheater hot blast
Automatic block clearing anti-blocking system.
Background technology
Important component of the air preheater as boiler module.On the one hand, air preheater absorbs heat as boiler and filled
The least significant end put, air preheater complete boiler and the afterbody of waste heat are reclaimed, and make from air preheater flue-gas temperature of going out
For exhaust gas temperature, the thermal efficiency of boiler operatiopn is directly influenced；On the other hand, air preheater is also at boiler wind and smoke module
Front end, give, primary air fan come cold air by air preheater heating after, into burner hearth participate in burn, directly influence
Combustion conditions in stove.Therefore, stable operation and Effec-tive Function of the normal operation of air preheater to boiler are most important.Existing rank
Section, rotary regenerative air preheater is compact-sized because its heat exchange efficiency is high, is widely applied in large-size thermal power plant.
Because environmental requirement gradually steps up in recent years, each power plant has been completed that denitration is transformed.And change by denitration
After making, due to the ammonium hydrogen sulfate containing the easy condensation adhesion of finite concentration in flue gas, the air preheater of each unit starts
Different degrees of stopping state is showed.Air preheater the safety and economic operation of boiler is brought after blocking it is very severe after
Fruit.
At present, after air preheater blocks generation, the solution that domestic power plant generally uses is steam air heater and double media
Soot blowing technology, but effect is unsatisfactory；Some power plant also have to enter using the method for high pressure water washing when air preheater blocks
Row block clearing, although this method can alleviate the problem of blocking to a certain extent, the situation of blocking is not effected a radical cure, when crossing one section
Between after may proceed to situation about blocking again.And the serious consequence of damage heat transfer element can be also brought during misoperation.
Prior art has the disadvantages that：
Shortcoming one：Because stifled ash causes air preheater heat transfer element space to reduce, resistance increase, make to send, primary air fan
With the power consumption increase of air-introduced machine, station service power consumption rate is added.Seriously block up grey fouling when flowing resistance increase, ventilation significantly under
Drop, it is impossible to meet that unit band requires at full capacity, the operation of unit load down, cause unit generation scarce capacity.
Shortcoming two：Because heat transfer element blocks up grey fouling, air is increased by heat transfer element resistance, air preheater cold-end air leakage
Air quantity increases, and increase boiler exhaust gas loss, boiler efficiency declines.
Shortcoming three：Because heat transfer element blocks up grey fouling, heat-transfer effect is deteriorated, and air caloric receptivity is reduced, and makes air preheater
Heat exchange efficiency is greatly reduced, and exhaust gas temperature rise, flue gas heat utilization amount is reduced, and boiler efficiency reduces.
Shortcoming four：Ash Blocking in Air Preheater situation is uneven, and furnace pressure fluctuation is obvious when causing the air preheater to run, sternly
It has impact in stove and burn again, stove chamber fire-extinguishing accident is resulted even in when serious, jeopardize unit operation safety.
Shortcoming five：Because air preheater cold-end air wall temperature is relatively low, the SO in flue gas3Coagulated with water vapour condensation and ammonium hydrogen sulfate
It is exposed on cold end heat transfer element, causes heat transfer element corrosion aggravation to ring, influence heat transfer element service life.
Therefore, it is necessary to a kind of new air preheater hot blast automatic block clearing anti-blocking system is provided to solve the above problems.
Utility model content
The technical problem that the utility model solves is to provide a kind of sky that can effectively prevent air preheater from blocking
Air preheater hot blast automatic block clearing anti-blocking system.
In order to solve the above technical problems, the utility model provides a kind of air preheater hot blast automatic block clearing anti-blocking system,
Including the anti-blocking module of block clearing and with the one-to-one air preheater of the anti-blocking module of the block clearing, the anti-blocking module bag of block clearing
Include block clearing hot blast supply unit, control unit, temperature measuring equipment and spray hot wind unit；The air preheater includes rotor,
The rotor includes multiple heat transfer elements；The block clearing hot blast supply unit includes blower fan, air channel, takes wind from the air channel
Volume adjusting apparatus, block clearing high-temperature blower and the hot blast conveying pipe road for taking wind apparatus and being sequentially communicated；The blower fan is by air
The air preheater is transferred to, is handled by the heat transfer of the air preheater, generates hot blast, the hot blast passes through the wind
Road, it is described take wind apparatus and the volume adjusting apparatus to be transferred to the block clearing high-temperature blower, the block clearing high-temperature blower blows
The hot blast is given to spray to the heat transfer element after passing sequentially through the hot air duct and the spray hot wind unit；Described control unit
Receive after the temperature of the heat transfer element measured by the temperature measuring equipment according to the temperature control volume adjusting apparatus with
The block clearing high-temperature blower adjusts the wind speed and blast for the hot blast that the spray hot wind unit is sprayed.
Preferably, the blower fan includes primary air fan and overfire air fan, and the air channel includes and the primary air fan and institute
State overfire air fan respectively corresponding to an air channel and secondary air duct, it is described that to take wind apparatus to be installed on any on the secondary air duct
Position；The hot blast taken acquired by wind apparatus is transferred to the volume adjusting apparatus.
Preferably, the air preheater also includes being arranged at the central rotating shaft of the rotor circle centre position, by the rotor
Be separated into two half-circle areas Sectorial sealplate, positioned at a half-circle area be used for by the flue gas of heat smoke flow through region,
Positioned at second half region-wide the First air region for being used to pass through air and Secondary Air region and it is arranged at the First air region
A Secondary Air sealing plate between the Secondary Air region, the primary air fan blow air behind the First air region
Into an air channel, the overfire air fan blows air and enters the secondary air duct behind the Secondary Air region.
Preferably, the spray hot wind unit installation site is determined according to the direction of rotation of the rotor, if the air
Preheater rotor flows through region rotation along the First air region and the Secondary Air region to the flue gas successively, then described
Spray hot wind unit is installed between the Secondary Air region and the Sectorial sealplate；If air preheater rotor is successively along institute
State Secondary Air region and the First air region and flow through region rotation to the flue gas, then the spray hot wind unit is installed on
Between the First air region and the Sectorial sealplate.
Preferably, the spray hot wind unit is close to the Sectorial sealplate setting, and the heat transfer element passes through the heat
After the Hot-blast Heating of wind injection unit injection region is flowed through into the flue gas.
Preferably, the temperature measuring equipment is non-contact infrared thermometry device, and temperature detection range is 0 DEG C~300 DEG C
Between.
Preferably, the shape of the heat air delivery pipeline is any one in circular, rectangle and other polygons, institute
The flow area of heat air delivery pipeline is stated in 0.2m2~1.7m2Between.
Preferably, the hot blast flow velocity that the spray hot wind unit sprays is between 5m/s~80m/s.
Preferably, the spray hot wind unit includes the first jet and the second jet, and the first described jet blows
Hot blast is swept to the wall surface temperature lowermost extent of the heat transfer element, the heat transfer element is heated and purged；Described second
Jet is set against the Sectorial sealplate, and second jet sprays high speed hot blast close to institute to the heat transfer element
State formation high speed air curtain at Sectorial sealplate.
Preferably, the injection direction of second jet is at an angle towards the First air region of the rotor
Or Secondary Air region flows through region close to the flue gas and is located at the low one side of temperature, the angle is described between 80~100 degree
The hot blast flow velocity that second jet sprays is between 40m/s~80m/s.
Compared with correlation technique, air preheater hot blast automatic block clearing anti-blocking system provided by the utility model passes through heat
Wind conveyance conduit takes hot blast from thermal source, and the region that heat transfer element temperature is minimum in air preheater is sprayed into through spray hot wind unit,
Heat transfer element is heated and washed away so as to have the function that, effectively can prevent heat transfer element from blocking, and protects heat transfer member
Low-temperature corrosion does not occur for part, while the function that there is dredging air preheater dust to block；Wind apparatus is taken to be arranged at secondary air duct
On optional position, therefore be easily installed and construct, and the total length in hot blast conveying pipe road can also be greatly reduced, reduce life
Produce cost.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, and drawings in the following description are only some embodiments of the utility model, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing, wherein：
Fig. 1 is structural representation of the utility model air preheater hot blast automatic block clearing anti-blocking system in embodiment one
Figure；
Fig. 2 is the structural representation of the utility model air preheater hot blast automatic block clearing anti-blocking system；
Fig. 3 is section of the air side of air preheater in the utility model air preheater hot blast automatic block clearing anti-blocking system
Face schematic diagram.
Embodiment
The technical scheme in the embodiment of the utility model will be clearly and completely described below, it is clear that described
Embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Embodiment one
Please refer to Fig. 2 and Fig. 3, wherein, Fig. 2 is the anti-blocking system of the utility model air preheater hot blast automatic block clearing
The structural representation of system；Fig. 3 is the sky of air preheater in the utility model air preheater hot blast automatic block clearing anti-blocking system
The schematic cross-section of gas side.The air preheater hot blast automatic block clearing anti-blocking system 100, including the anti-blocking module 1 of block clearing and
1 one-to-one air preheater 2 of module anti-blocking with the block clearing, it is single that the anti-blocking module 1 of block clearing includes the conveying of block clearing hot blast
Member 11, control unit 12, temperature measuring equipment 13 and spray hot wind unit 14；The air preheater 2 includes rotor 21, described turn
Son 21 includes multiple heat transfer elements 211, and the temperature measuring equipment 13 detects the temperature of the temperature lowest part of heat transfer element 211 in real time
Degree；The block clearing hot blast supply unit 11 includes being sequentially communicated the primary air fan 111, overfire air fan 112, logical for transmitting wind-force
Air channel 116, volume adjusting apparatus 113, block clearing high-temperature blower 114 and hot blast conveying pipe road 115.
The air preheater 2 is rotary regenerative air preheater.
The ventilating duct 116 includes an air channel 1161 and secondary air duct 1162, is installed on the secondary air duct 1162
Wind apparatus 118 is taken, it is described to take wind apparatus 118 to be connected to according to the actual conditions at scene on the secondary air duct 1162
Optional position, the hot blast taken acquired by wind apparatus 118 are transferred to the volume adjusting apparatus 113, an air channel
1161 connection external equipments.
Air is transferred to the air of the air preheater 2 by the primary air fan 111 and the overfire air fan 112 respectively
Side 24, heat transfer is sent in the air preheater 2 makes the atmosphere temperature rising form hot blast, and the hot blast is from the air preheater
The block clearing high-temperature blower 114 is transferred to by the volume adjusting apparatus 113 after 2 discharge of fume side 23, the block clearing is high
Warm air machine 114, which blows the hot blast, to be made the hot blast have certain pressure and the hot blast is passed sequentially through the hot blast conveying pipe road
115 and the spray hot wind unit 14 after spray to the minimum temperature region of the heat transfer element 211, the heat transfer to the region
Element 211 is heated and purged, and the minimum temperature region is one of the air side 24 close to the air preheater 2
Side.
The block clearing hot blast supply unit 11 transmits the hot blast with heat successively by the air preheater 2, described
Volume adjusting apparatus 113, the block clearing high-temperature blower 114 and the hot blast conveying pipe road 115 are to the spray hot wind unit
14, the spray hot wind unit 14 sprays to hot blast the air side 24 of the heat transfer element 211, so as to reach to the biography
The heating of thermal element 211 and purging souring.
Described control unit 12 receives the minimum temperature of the heat transfer element 211 measured by the temperature measuring equipment 13, and
According to volume adjusting apparatus 113 described in the temperature control and the block clearing high-temperature blower 114 to adjust wind speed.
Described control unit 12 is DCS control devices (scattered control system), is of course not solely limited to this.
The volume adjusting apparatus 113 can use motorized adjustment or pneumatic regulation, be adjusted by adjusting the size of air quantity
Save the spray hot wind unit 14 jet velocity and regulation to the degree of heat of the heat transfer element 211.
The air preheater 2 also includes the central rotating shaft 22 for being arranged at the circle centre position of rotor 21, the air preheat
The rotor 21 of device 2 is made up of the heat transfer element 211 of tens thousand of meters, when the air preheater 2 slowly rotates, flue gas and
Air inversely flows alternately through the air preheater 2, and the heat transfer member 211 is absorbed heat in the fume side 23, in the air side
24 heat releases, so as to reach reduction exhaust gas temperature, improve the pre- heat effect of hot blast temperature.
The air preheater 2 also includes Sectorial sealplate 25, the position that the rotor 21 is separated into two half-circle areas
Flue gas in a half-circle area flow through region 26, positioned at second half region-wide First air region 27, Secondary Air region 28 with
And it is arranged at the Secondary Air sealing plate 29 between the First air region 27 and the Secondary Air region 28.
The installation site of spray hot wind unit 14 is determined according to the direction of rotation of the rotor 21, if the edge of the rotor 21
The First air region 27 flows through region 26 to the flue gas to the Secondary Air region 28 and rotated, then the spray hot wind unit
14 are installed between the Secondary Air region 28 and the Sectorial sealplate 25；If the rotor 21 is along the Secondary Air region 28
Flow through region 26 to the First air region 27 to the flue gas and rotate, then the spray hot wind unit 14 be installed on it is described once
Between wind region 27 and the Sectorial sealplate 25, to ensure that the heat transfer element 211 of the rotor 21 is passing through the heat
The flue gas is entered back into after the heating of wind injection unit 14 and flows through region 21.
Rotor 21 described in the present embodiment is along the Secondary Air region 28 to the First air region 27 to the flue gas stream
Rotated through region 26, the spray hot wind unit 14 is installed between the First air region 27 and the Sectorial sealplate 25.
The spray hot wind unit 14 is close to the air side 24 that the Sectorial sealplate 25 is arranged at the rotor 21.
The spray hot wind unit 14 includes the first jet 141 and the second jet 142, first jet
141 purging hot blasts are heated and blown to the heat transfer element 211 to the minimum region of the wall surface temperature of heat transfer element 211
Sweep；Second jet 142 is set against the Sectorial sealplate 25, and second jet 142 is to the heat transfer element
211 injection high speed hot blasts are forming high speed air curtain at the Sectorial sealplate 25, and it is empty to obstruct the cold end of air preheater 2
Gas is drained in flue gas by the gap of the fanning strip sealing plate 25.
The injection direction of second jet 142 is at an angle towards the rotor 21, and the angle is at 80~100 degree
Between, the hot blast flow velocity that second jet 142 sprays is between 40m/s~80m/s.
Please refer to Fig. 1, be the utility model air preheater hot blast automatic block clearing anti-blocking system in embodiment one
Structural representation.Also include SCR denitration device 20, deduster 30 and air-introduced machine 40 in the present embodiment；From boiler discharge according to
The old wind with heat passes sequentially through the denitrification apparatus 20, the flue gas of the fume side of the air preheater 2 flows through region,
Enter next processing stage after the deduster 30 and the air-introduced machine 40.
The temperature measuring equipment 13 is non-contact temperature measuring device, is infrared thermometry device, temperature detection range is 0 DEG C~
Between 300 DEG C.
The heat air delivery conveyance conduit 115 is any one in circular, rectangle and other polygons, the conveying
The flow area of hot air duct 115 is in 0.2m2~1.m2Between, the flow area of the heat air delivery pipeline 115 can be according to application
Environment is configured as 0.2m2、0.5m2And 1.m2In arbitrary value.
For the hot blast flow velocity that the spray hot wind unit 14 sprays between 5m/s~80m/s, the speed can pass through the control
Unit 12 processed controls, and the injection direction of second jet 142 is at an angle towards the First air of the rotor 21
Region 27 (difference according to the direction of rotation of rotor 21 can also be the Secondary Air region 28) flows through close to the flue gas
Region 26 and positioned at the low one side of temperature, the angle is between 80~100 degree, the hot air flow of the ejection of the second jet 142
Speed is between 40m/s~80m/s.
Component its structure for being used to spray in the spray hot wind unit 14 is groove profile, fan, pipe is shaped grooved and opens
Any one in pass.
Volume adjusting apparatus 113 described in temperature control of the described control unit 12 according to measured by the temperature measuring equipment 13 with
And the block clearing high-temperature blower 114 carries out air quantity and wind speed regulation, the heat transfer element 211 is heated to 70~150 DEG C, with this
Realize heat transfer element 211 described in pre- anti-low-temperature corrosion and prevent NH4HSO4 condensations from condensing upon on the heat transfer element 211, keep away
Exempt from the adhering dust of heat transfer element 211 to block.
When the heat transfer element 211 flow through region 26 into the flue gas before temperature reach 90 DEG C and the above when, effect
Fruit is preferable.
Compared with correlation technique, air preheater hot blast automatic block clearing anti-blocking system provided by the utility model passes through heat
Wind conveyance conduit takes hot blast from thermal source, and the region that heat transfer element temperature is minimum in air preheater is sprayed into through spray hot wind unit,
Heat transfer element is heated and washed away so as to have the function that, effectively can prevent heat transfer element from blocking, and protects heat transfer member
Low-temperature corrosion does not occur for part, while the function that there is dredging air preheater dust to block；Wind apparatus is taken to be arranged at secondary air duct
On optional position, therefore be easily installed and construct, and the total length in hot blast conveying pipe road can also be greatly reduced, reduce life
Produce cost.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. air preheater hot blast automatic block clearing anti-blocking system, it is characterised in that including the anti-blocking module of block clearing and with institute The one-to-one air preheater of the anti-blocking module of block clearing is stated, the anti-blocking module of block clearing includes block clearing hot blast supply unit, control Unit, temperature measuring equipment and spray hot wind unit；The air preheater includes rotor, and the rotor includes multiple heat transfer members Part；The block clearing hot blast supply unit includes blower fan, air channel, takes from the air channel taking wind apparatus and being sequentially communicated for wind Volume adjusting apparatus, block clearing high-temperature blower and hot blast conveying pipe road；Air is transferred to the air preheater by the blower fan, warp Cross the heat transfer processing of the air preheater, generate hot blast, the hot blast by the air channel, described take wind apparatus and the wind Quantity regulating device is transferred to the block clearing high-temperature blower, and the block clearing high-temperature blower blows the hot blast and passes sequentially through the warm-air pipe The heat transfer element is sprayed to after road and the spray hot wind unit；Described control unit receives the institute measured by the temperature measuring equipment The volume adjusting apparatus according to the temperature control adjusts the heat with the block clearing high-temperature blower after stating the temperature of heat transfer element The wind speed and blast for the hot blast that wind injection unit is sprayed.
- 2. air preheater hot blast automatic block clearing anti-blocking system according to claim 1, it is characterised in that the blower fan bag Primary air fan and overfire air fan are included, the air channel includes First air corresponding with the primary air fan and overfire air fan difference Road and secondary air duct, the optional position for taking wind apparatus to be installed on the secondary air duct；It is described to take acquired by wind apparatus Hot blast is transferred to the volume adjusting apparatus.
- 3. air preheater hot blast automatic block clearing anti-blocking system according to claim 2, it is characterised in that the air is pre- Hot device also includes being arranged at the central rotating shaft of the rotor circle centre position, the rotor is separated into the fan-shaped close of two half-circle areas Shrouding, it is used to positioned at a half-circle area to flow through region, region-wide for passing through sky positioned at second half by the flue gas of heat smoke The First air region and Secondary Air region of gas and be arranged between the First air region and the Secondary Air region one or two Secondary wind sealing plate, the primary air fan blows air and enters an air channel behind the First air region, described secondary Blower fan blows air and enters the secondary air duct behind the Secondary Air region.
- 4. air preheater hot blast automatic block clearing anti-blocking system according to claim 3, it is characterised in that according to described turn The direction of rotation of son determines the spray hot wind unit installation site, if the air preheater rotor is successively along the First air Region and the Secondary Air region flow through region rotation to the flue gas, then the spray hot wind unit is installed on described secondary Between wind region and the Sectorial sealplate；If air preheater rotor is successively along the Secondary Air region and the First air Region flows through region rotation to the flue gas, then the spray hot wind unit is installed on the First air region and the sector is close Between shrouding.
- 5. air preheater hot blast automatic block clearing anti-blocking system according to claim 4, it is characterised in that the hot blast spray Penetrate unit and be close to the Sectorial sealplate and set, after Hot-blast Heating of the heat transfer element by the spray hot wind unit injection Region is flowed through into the flue gas.
- 6. air preheater hot blast automatic block clearing anti-blocking system according to claim 5, it is characterised in that the thermometric dress Non-contact infrared thermometry device is set to, between temperature detection range is 0 DEG C~300 DEG C.
- 7. air preheater hot blast automatic block clearing anti-blocking system according to claim 1, it is characterised in that the conveying heat The shape of wind pipeline is any one in circular, rectangle and other polygons, the flow area of the heat air delivery pipeline In 0.2m2~1.7m2Between.
- 8. air preheater hot blast automatic block clearing anti-blocking system according to claim 1, it is characterised in that the hot blast spray The hot blast flow velocity of unit ejection is penetrated between 5m/s~80m/s.
- 9. air preheater hot blast automatic block clearing anti-blocking system according to claim 3, it is characterised in that the hot blast spray Penetrating unit includes the first jet and the second jet, and the first described jet purges hot blast to the wall of the heat transfer element Temperature lowermost extent, the heat transfer element is heated and purged；Second jet is set against the Sectorial sealplate Put, second jet sprays high speed hot blast to the heat transfer element and high speed gas is being formed at the Sectorial sealplate Curtain.
- 10. air preheater hot blast automatic block clearing anti-blocking system according to claim 9, it is characterised in that described second The injection direction of jet is at an angle towards the First air region or Secondary Air region of the rotor close to the cigarette Air-flow is through region and positioned at the low one side of temperature, and the angle is between 80~100 degree, the hot air flow of the second jet ejection Speed is between 40m/s~80m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236720.3U CN207006219U (en) | 2017-09-25 | 2017-09-25 | Air preheater hot blast automatic block clearing anti-blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236720.3U CN207006219U (en) | 2017-09-25 | 2017-09-25 | Air preheater hot blast automatic block clearing anti-blocking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207006219U true CN207006219U (en) | 2018-02-13 |
Family
ID=61459343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721236720.3U Active CN207006219U (en) | 2017-09-25 | 2017-09-25 | Air preheater hot blast automatic block clearing anti-blocking system |
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| Country | Link |
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| CN (1) | CN207006219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477608A (en) * | 2017-09-25 | 2017-12-15 | 长沙天瑞能源科技有限公司 | Air preheater hot blast automatic block clearing anti-blocking system |
| CN108534172A (en) * | 2018-05-10 | 2018-09-14 | 中国计量大学 | For preventing the system that deposit blocks in rotary regenerative air preheater |
-
2017
- 2017-09-25 CN CN201721236720.3U patent/CN207006219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477608A (en) * | 2017-09-25 | 2017-12-15 | 长沙天瑞能源科技有限公司 | Air preheater hot blast automatic block clearing anti-blocking system |
| CN108534172A (en) * | 2018-05-10 | 2018-09-14 | 中国计量大学 | For preventing the system that deposit blocks in rotary regenerative air preheater |
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