CN206688532U - A kind of compressed air soot-blowing device with heater - Google Patents
A kind of compressed air soot-blowing device with heater Download PDFInfo
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- CN206688532U CN206688532U CN201720253206.4U CN201720253206U CN206688532U CN 206688532 U CN206688532 U CN 206688532U CN 201720253206 U CN201720253206 U CN 201720253206U CN 206688532 U CN206688532 U CN 206688532U
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- heater
- soot
- output end
- compressed air
- air
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of compressed air soot-blowing device with heater, belong to gas denitrifying technology field.Compressed air soot-blowing device includes：Air compression assembly, heater and soot blowing component, air compression assembly include air compressor machine, cooling driers, filter and air accumulator；The output end of air compressor machine connects with the input of filter, the output end of filter connects with the input of cooling driers, the output end of cooling driers connects with the input of air accumulator, the output end of air accumulator connects with the input of heater, the output end of heater connects with soot blowing component, heater is coiled structure, and heater is arranged on the exhaust gases passes in scr reactor Nei and between air accumulator and soot blowing component, and the output end of heater is provided with pressure transmitter.The utility model reduces the operating cost of compressed air soot-blowing device while realizing to catalyst in SCR denitration reactor good ash-removal effect.
Description
Technical field
The utility model belongs to gas denitrifying technology field, more particularly to a kind of compressed air soot-blowing dress with heater
Put.
Background technology
SCR (SCR) technology has been widely used for controlling industrial furnace smoke NOXAspect.Industry kiln
Dust containing high concentration, particularly glass furnace in kiln gas, flue dust also have stronger adhesiveness, easily cause SCR and urge
Agent blocks, and reduces denitration efficiency, SCR reactors are equipped with various types of soot blowers for this.In engineering practice, often
Use sonic soot blowing device and the soot blower using steam or compressed air as medium.Sonic soot blowing device because soot blowing intensity compared with
It is low, it is impossible to effectively to remove the dust stratification in catalyst duct.Steam soot blower medium temperature height (more than 210 DEG C), pressure are big
(more than 1.6MPa), jet expansion velocity of medium is high, has preferable ash-removal effect.But if hydrophobic effect is bad, entrained with
Moisture content easily combined with the dust in flue gas, be adhered to catalyst surface, cause more serious blocking.
Therefore, for being not suitable for the occasion using steam sootblower, compressed air soot-blowing device can only be used.Compressed air
The high pressure air that soot blower is sprayed based on soot blowing component to catalyst end face, so as to which the dust on catalyst layer is clear
Remove.
However, because the temperature of compressed air is normal temperature, pressure highest also can only achieve 0.7MPa, reach jet expansion
Kinetic energy required for medium, it is necessary to configure the air compressor machine of Large Copacity, this is directly contributed in equipment cost increase and operating cost
Rise.
Utility model content
In order to solve the above problems, the utility model embodiment provides a kind of compressed air soot-blowing dress with heater
Put.The technical scheme is as follows：
The utility model embodiment provides a kind of compressed air soot-blowing device with heater, the compressed air soot-blowing
Device includes air compression assembly, heater and soot blowing component, and the air compression assembly includes air compressor machine, cooling driers, filtering
Device and air accumulator；The output end of the air compressor machine connects with the input of the filter, the output end of the filter and institute
The input connection of cooling driers is stated, the output end of the cooling driers connects with the input of the air accumulator, the air accumulator
Output end connects with the input of the heater, and the output end of the heater connects with the soot blowing component, the heating
Device is coiled structure, and the heater is arranged on the exhaust gases passes in scr reactor Nei and is located at the storage
Between gas tank and the soot blowing component, the output end of the heater is provided with pressure transmitter.
In a kind of implementation of the present utility model, the heater is adopted as helix tube, light pipe or finned tube and made.
In another implementation of the present utility model, the temperature of the compressed air of heater output 170~
200℃。
In another implementation of the present utility model, the soot blowing component and the scr reactor
Interior catalyst layer corresponds arrangement.
In another implementation of the present utility model, the soot blowing component is reciprocal single rake.
In another implementation of the present utility model, thermometer is installed on the heater, the thermometer is set
Put the output end in the heater.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：
When compressed air soot-blowing device works, air compressor machine is stored in air accumulator after the air of suction is compressed, gas storage
Compressed air in tank enters heater, because heater is arranged in exhaust gases passes, utilizes the high temperature to be circulated in exhaust gases passes
Fume afterheat heats to compressed air, the increase of its volume, so as to serve the effect for heating pressurize, and then improves compressed air
The soot blowing effect of soot blower.Also, because heater is that compressed air is entered using the waste heat of high-temperature flue gas in exhaust gases passes
Row heating, without consuming other energy, so advantageously reducing the energy consumption and operating cost of compressed air soot-blowing device.
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, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the compressed air soot-blowing device that the utility model embodiment provides；
Each symbol represents that implication is as follows in figure：
1- soot blowing components, 11- bodies, 12- central tubes, 13- rake pipes, 14- controllers, the electronic intake valves of 15-, 2- air pressures
Contracting component, 21- air compressor machines, 23- air accumulators, 24- filters, 25- cooling driers, 26- oil mist filters, 27- safety valves, 28- rows
Water valve, 29- stop valves, 3- heaters, 4- pressure transmitters, 5- thermometers, 100- exhaust gases passes, 200- catalyst layers.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provide it is a kind of be used for flue gas scr reactor, i.e. SCR reactors
Compressed air soot-blowing device, catalyst layer are arranged in SCR channel of reactor so that the NO in flue gasXCan be in reactor
Chemical reaction is produced under catalyst action with reducing agent, denitration is realized, meets qualified discharge.
Fig. 1 is the structural representation of compressed air soot-blowing device, as shown in figure 1, the compressed air soot-blowing device includes：It is empty
The heater 3 of gas compression assembly 2 and soot blowing component 1, air compression assembly 2 include air compressor machine 21, cooling driers 25, filter 24 and storage
Gas tank 23, the output end of air compressor machine 21 connect with the input of filter 24, and the output end of filter 24 is defeated with cooling driers 25
Enter end connection, the output end of cooling driers 25 connects with the input of air accumulator 23, and the output end of air accumulator 23 is defeated with heater 3
Enter end connection, the output end of heater 3 connects with soot blowing component 1, and heater 3 is coiled structure, and heater 3 is arranged on selection
Property catalytic reduction reactor in exhaust gases passes 100 in and between air accumulator 23 and soot blowing component 1, the output of heater 3
End is provided with pressure transmitter 4.
When compressed air soot-blowing device works, air compressor machine 21 is stored in air accumulator 23 after the air of suction is compressed,
Compressed air enters heater 3, because heater 3 is arranged in exhaust gases passes 100, when compressed air passes through heater 3, and profit
Compressed air is heated with the high-temperature flue gas of circulation in exhaust gases passes 100 so that its volume increases, and pressurize is heated so as to serve
Effect, and then improve the soot blowing effect of compressed air soot-blowing device.Because heater 3 is to utilize in exhaust gases passes 100
Some high-temperature flue gas waste heats heat to compressed air, without consuming the energy, so advantageously reducing compressed air soot-blowing dress
Energy consumption and the operating cost control put.
It should be noted that because the flue-gas temperature in exhaust gases passes 100 is typically at 300~350 DEG C, work as compressed air stream
After heated device 3, for the temperature for the compressed air that heater 3 exports at 170~200 DEG C, compressed air volume will increase 1.5 times,
Serve the effect for heating pressurize.
Preferably, heater 3 is coiled, is made using helix tube, light pipe or finned tube, and the utility model is not done to this
Limitation.
In the present embodiment, soot blowing component 1 include central tube 12, rake pipe 13 with for driving central tube 12 along parallel catalysis
The drive mechanism (not shown) of the direction movement of oxidant layer 200, one end of central tube 12 is connected with drive mechanism and connected with heater 3
Logical, rake pipe 13 is vertically mounted at the other end of central tube 12, and harrows pipe 13 and connected with central tube 12, is arranged at intervals with rake pipe 13 more
Individual spray orifice, all spray orifices are arranged towards catalyst layer 200.In the presence of drive mechanism, length of the central tube 12 along itself
Direction moves back and forth, so as to drive rake pipe 13 can relative catalytic oxidant layer 200 move back and forth, realize soot blowing component 1 to catalysis
The uniform soot blowing of oxidant layer 200.Specifically, soot blowing component can also include body 11, and body 11 is used to carry drive mechanism.
In the present embodiment, soot blowing component 1 is reciprocal single rake soot blowing component, and compressed air soot-blowing device also includes control
Device 14 and electronic intake valve 15, the output end of electronic intake valve 15 connect with central tube 12, the input of electronic intake valve 15 with
The output end connection of heater 3, controller 14 electrically connect with electronic intake valve 15 and pressure transmitter 4 respectively, work as pressure inverting
When the pressure value that device 4 detects reaches first threshold, controller 14 controls the electronic conducting of intake valve 15 and drive mechanism work, when
When the pressure value that pressure transmitter 4 detects is less than Second Threshold, controller 14 controls electronic intake valve 15 to turn off and driving machine
Structure stops.First threshold is more than Second Threshold.
When compressed air soot-blowing device works, pressure transmitter 4 monitors the pressure value of the output end of heater 3 in real time, when
When pressure value reaches first threshold, controller 14 controls electronic intake valve 15 to open so that and compressed air enters central tube 12, and
Sprayed from rake pipe 13, while drive mechanism works, and performs soot blowing operation；Once the pressure value of the output end of heater 3 during soot blowing
When dropping to Second Threshold, controller 14 controls electronic intake valve 15 to turn off, while drive mechanism stops.In air compression assembly
Under 2 supplements and the collective effect of heater 3, when pressure value rises to first threshold again, controller 14 controls electronic intake valve
15 open, and perform soot blowing operation again.
Preferably, ensure the pressure value of the output end of heater 3 at the beginning of 0.6~0.8MPa, the air sprayed by rake pipe 13
Speed is not less than 40m/s.
In the present embodiment, soot blowing component 1 is corresponded with the catalyst layer 200 in SCR reactors and arranged, soot blowing component
1 can correspond arrangement with catalyst layer 200, i.e., the quantity of soot blowing component 1 is identical with the quantity of catalyst layer 200, for example,
When provided with 2 catalyst layers 200, correspondingly compressed air soot-blowing device also configures 2 soot blowing components 1.
In the present embodiment, air compression assembly 2 also includes oil mist filter 26, the input of oil mist filter 26 with it is cold
The output end connection of dry machine 25, the output end of oil mist filter 26 connect with the input of air accumulator 23,
Specifically, air accumulator 23 is provided with safety valve 27 and draining valve 28.
Preferably, the output end of air accumulator 23 is provided with stop valve 29, and stop valve 29 is arranged on air accumulator 23 and heater 3
Between, it is preferred that stop valve 29 can be hand stop valve, needs during meeting system overhaul.
Specifically, thermometer 5 is installed, thermometer 5 is arranged on the output end of heater 3, so as to logical on heater 3
Excess temperature meter 5 monitors the temperature at the deferent segment of heater 3 in real time.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (6)
1. a kind of compressed air soot-blowing device with heater, the compressed air soot-blowing device includes air compression assembly, added
Hot device and soot blowing component, the air compression assembly include air compressor machine, cooling driers, filter and air accumulator；The air compressor machine
Output end connects with the input of the filter, and the output end of the filter connects with the input of the cooling driers, institute
The output end for stating cooling driers connects with the input of the air accumulator, the output end of the air accumulator and the input of the heater
End connection, the output end of the heater connect with the soot blowing component, it is characterised in that the heater is coiled knot
Structure, the heater are arranged on the exhaust gases passes in scr reactor Nei and blown positioned at the air accumulator with described
Between grey component, the output end of the heater is provided with pressure transmitter.
2. compressed air soot-blowing device according to claim 1, it is characterised in that the heater is using helix tube, light
Pipe or finned tube are made.
3. compressed air soot-blowing device according to claim 1, it is characterised in that the compressed air of the heater output
Temperature at 170~200 DEG C.
4. compressed air soot-blowing device according to claim 1, it is characterised in that the soot blowing component and the selectivity
Catalyst layer in catalytic reduction reactor corresponds arrangement.
5. compressed air soot-blowing device according to claim 1, it is characterised in that the soot blowing component is reciprocal single rake
Formula.
6. compressed air soot-blowing device according to claim 1, it is characterised in that be provided with temperature on the heater
Meter, the thermometer are arranged on the output end of the heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253206.4U CN206688532U (en) | 2017-03-14 | 2017-03-14 | A kind of compressed air soot-blowing device with heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720253206.4U CN206688532U (en) | 2017-03-14 | 2017-03-14 | A kind of compressed air soot-blowing device with heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206688532U true CN206688532U (en) | 2017-12-01 |
Family
ID=60443728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720253206.4U Expired - Fee Related CN206688532U (en) | 2017-03-14 | 2017-03-14 | A kind of compressed air soot-blowing device with heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206688532U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876509A (en) * | 2017-12-28 | 2018-04-06 | 海南中航特玻科技有限公司 | A kind of SCR denitration real-time blow device online |
| CN109939563A (en) * | 2019-04-11 | 2019-06-28 | 龙净科杰环保技术（上海）有限公司 | Can online Thermal desorption low-temperature SCR reactor |
| CN109999634A (en) * | 2019-04-19 | 2019-07-12 | 西安西矿环保科技有限公司 | One kind being used for cement SCR denitration and exhaust treatment system |
| CN110052163A (en) * | 2019-05-23 | 2019-07-26 | 西安西矿环保科技有限公司 | A kind of new type water stall denitration dust collecting device |
| CN110052107A (en) * | 2019-04-19 | 2019-07-26 | 西安西矿环保科技有限公司 | A kind of new type water stall denitration desulfurization catalyst system |
| CN115487674A (en) * | 2022-09-27 | 2022-12-20 | 昆岳互联环境技术(江苏)有限公司 | Be suitable for clean soot blower system of high dust SCR denitration catalyst jam |
-
2017
- 2017-03-14 CN CN201720253206.4U patent/CN206688532U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876509A (en) * | 2017-12-28 | 2018-04-06 | 海南中航特玻科技有限公司 | A kind of SCR denitration real-time blow device online |
| CN109939563A (en) * | 2019-04-11 | 2019-06-28 | 龙净科杰环保技术（上海）有限公司 | Can online Thermal desorption low-temperature SCR reactor |
| CN109939563B (en) * | 2019-04-11 | 2021-12-14 | 龙净科杰环保技术（上海）有限公司 | Low-temperature SCR reactor capable of realizing online thermal desorption |
| CN109999634A (en) * | 2019-04-19 | 2019-07-12 | 西安西矿环保科技有限公司 | One kind being used for cement SCR denitration and exhaust treatment system |
| CN110052107A (en) * | 2019-04-19 | 2019-07-26 | 西安西矿环保科技有限公司 | A kind of new type water stall denitration desulfurization catalyst system |
| CN110052163A (en) * | 2019-05-23 | 2019-07-26 | 西安西矿环保科技有限公司 | A kind of new type water stall denitration dust collecting device |
| CN115487674A (en) * | 2022-09-27 | 2022-12-20 | 昆岳互联环境技术(江苏)有限公司 | Be suitable for clean soot blower system of high dust SCR denitration catalyst jam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20200314 |