CN207871899U - Mobile denitration spray gun - Google Patents
Mobile denitration spray gun Download PDFInfo
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- CN207871899U CN207871899U CN201721751244.9U CN201721751244U CN207871899U CN 207871899 U CN207871899 U CN 207871899U CN 201721751244 U CN201721751244 U CN 201721751244U CN 207871899 U CN207871899 U CN 207871899U
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- spray gun
- mounting bracket
- movable type
- denitration
- mobile putter
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Abstract
Movable type denitration spray gun provided by the utility model, including spray gun, install casing, mounting bracket and the electric pushrod on mounting bracket, wherein the one end for installing casing is set on the side wall of mounting bracket, the other end is set on boiler wall, and spray gun is sheathed on installation inside pipe casing.Electric pushrod includes motor, transmission device and mobile putter, and one end of motor and transmission device connects, and the other end of transmission device and one end of mobile putter connect, and the other end of mobile putter passes through the end of connecting rod and spray gun and connects.Electric pushrod further includes control device and displacement sensor, and displacement sensor is set on mobile putter, control device respectively with motor, displacement sensor connection.Mobile spray gun provided by the present application, still by the fretting corrosion problem of flue dust, extends denitration spray gun service life, and do not influence denitration effect, reduces production cost when solving spray gun and not working；Facilitate the repair and replacement of spray gun and accessory simultaneously, improves denitration efficiency.
Description
Technical field
The utility model is related to denitrating flue gas field more particularly to a kind of mobile denitration spray guns.
Background technology
To prevent boiler fuel combustion from generating excessive NOxEnvironment is polluted, needs to carry out denitration process to its flue gas.Mesh
Before, cement plant, using the steam power plant of circulating fluidized bed boiler and garbage burning factory etc. is all made of selective non-catalytic reduction
(SNCR) denitrating technique, denitration spray gun are the core components in SNCR denitration technique, and the performance of denitration spray gun is directly related to de-
The effect of nitre influences the Safety production questions of enterprise.
Denitration spray gun includes mainly spraygun body, and spraygun body front end is equipped with nozzle, and spraygun body rear end is mixed equipped with gas-liquid
Clutch, air and liquid mixer include mainly mixer main body, compressed air inlet and denitrfying agent solution inlet, are set in mixer main body
There is first through hole, and first through hole is connected with the inner cavity of spraygun body, denitrfying agent solution inlet also leads to compressed air inlet
First through hole is crossed to be connected with inner cavity.Compressed air and denitration agent solution meet in mixer main body at first through hole, take off
Nitre agent solution is atomized into atomizing particle, under the promotion of compressed air, by the inner cavity of spraygun body, sprays, reaches from nozzle
To the purpose of denitration, there is spraying granule high uniformity, the good advantage of denitration effect.
However, denitration spray gun is in use, often it is fixedly installed in boiler wall or flue tube wall, spray gun is not
In use, still by the friction and corrosion of high-temperature flue gas dust, to accelerate the abrasion of denitration spray gun, shortens it and use the longevity
Life improves production cost；Moreover, when spray gun needs replacing nozzle or other accessories, it usually needs manually dismantled, expended
A large amount of labour.
Utility model content
This application provides a kind of mobile denitration spray guns, are fixed on boiler wall with solving existing spray gun, spray gun
When not in use still can be by the fretting corrosion of high-temperature smoke, service life is short, increase production cost the problem of.
A kind of movable type denitration spray gun, including spray gun install casing, mounting bracket and are set to electronic on the mounting bracket
Push rod, wherein
One end of the installation casing is set on the side wall of the mounting bracket, and the other end is set on boiler wall, described
Spray gun is sheathed on the installation inside pipe casing；
The electric pushrod includes motor, transmission device and mobile putter, one end of the motor and the transmission device
Connection, the other end of the transmission device are connect with one end of the mobile putter, and the other end of the mobile putter passes through company
Extension bar is connect with the end of the spray gun；
The electric pushrod further includes control device and displacement sensor, and institute's displacement sensors are set to the movement and push away
On bar, the control device respectively with the motor, the connection of institute displacement sensors.
Optionally, push jack, the push jack top and the installation casing upper inside walls activity are equipped in the installation casing
Connection, the push jack bottom end is enclosed with sponge.
Optionally, the electric pushrod is set to by bearing above the mounting bracket, is passed through in the middle part of the mobile putter
Holder is connect with the mounting bracket.
Optionally, the installation casing is equipped with blow valve port, and the blow valve port is located at outside the boiler wall.
Optionally, sealing shroud, the sealing shroud and the installation casing coaxial communication are additionally provided on the mounting bracket side wall
Setting.
Optionally, the spray gun front end sleeve is equipped with detachable protective casing.
Optionally, the lance end is additionally provided with air and liquid mixer, the denitrfying agent entrance being connected to the air and liquid mixer
And gas access, the denitrfying agent entrance are arranged close to the spray gun front end.
Optionally, solenoid valve, the solenoid valve and the control are equipped at the denitrfying agent entrance and the gas access
Device connection processed.
Optionally, the moving range of the denitration spray gun is 150mm-800mm.
Optionally, the protection sleeve pipe is silicon carbide protection sleeve pipe.
Technical solution provided by the present application includes following advantageous effects：
Movable type denitration spray gun provided by the utility model, mobility and the displacement distance for realizing denitration spray gun are controllable
Property.Compared to the existing denitration spray gun being fixed on boiler wall, solve spray gun when not in use, it still can be by high-temperature smoke
The problem of friction and corrosion, in the case where not influencing denitration effect, the service life of denitration spray gun is extended, reduces production
Cost；Meanwhile facilitating the repair and replacement of spray gun and spray gun fittings, denitration efficiency is improved, denitration cost is reduced.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the mobile denitration spray gun that provides of the utility model embodiment in the operating condition；
Fig. 2 is the structural schematic diagram of the mobile denitration spray gun that provides of the utility model embodiment in a non-operative state.
Reference sign：1, spray gun, 11, protection sleeve pipe, 12, air and liquid mixer, 13, denitrfying agent entrance, 14, gas enters
Mouthful, 15, solenoid valve, 2, installation casing, 21, push jack, 22, blow valve port, 3, mounting bracket, 31, sealing shroud, 4, electric pushrod, 41, electricity
Machine, 42, transmission device, 43, mobile putter, 44, connecting rod, 45, control device, 46, displacement sensor, 5, boiler wall, 6, branch
Seat, 7, holder.
Specific implementation mode
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, other drawings may also be obtained based on these drawings.
Attached drawing 1 is please referred to, the figure shows the structure of mobile denitration spray gun provided in this embodiment in the operating condition
Schematic diagram.
Movable type denitration spray gun provided by the utility model, including spray gun 1, install casing 2, mounting bracket 3, and be set to peace
Shelve the electric pushrod 4 on 3.Spray gun 1 is the tool sprayed into denitrfying agent in boiler.Mounting bracket 3 is the peace of entire denitration spray gun
Dress basis, all parts of denitration spray gun are fixedly mounted by mounting bracket 3, the mounting means between component can be by bolt,
Rivet etc..
One end of installation casing 2 is set on the side wall of mounting bracket 3, and mounting bracket 3 fixes support installation casing 2.The other end
It is set on boiler wall 5, spray gun 1 is sheathed on inside the installation casing 2, passes through the installation casing 2 being fixed on boiler wall 5, spray
Rifle 1 can move in installing casing 2, to realize that movement of the spray gun 1 inside and outside boiler, installation casing 2 play protection to spray gun 1
Effect reduces damage of the high-temperature smoke to spray gun 1 in boiler.
Electric pushrod 4 includes motor 41, transmission device 42 and mobile putter 43, the motor 41 and the one of transmission device 42
End connection, the other end of transmission device 42 connect with one end of mobile putter 43, are driven by motor 41, and transmission device 42 passes
It is dynamic, realize the linear movement of mobile putter 43.The transmission device 42 can be driven by pitch wheel, also may be used
To be by belt, the mode of chain-driving is driven.
The other end of the mobile putter 43 is connect by connecting rod 44 with the end of spray gun 1, and motor 41 drives mobile putter
43 movements, you can drive spray gun 1 to move linearly by connecting rod 44.To realize spray gun 1 at work, boiler wall 5 can be stretched into
Inside carries out the sprinkling of denitrfying agent；Spray gun 1 is removable to exit outside boiler wall 5 in inoperative, protects spray gun 1, avoid by
The friction and corrosion of high-temperature smoke extend the service life of spray gun 1, reduce production cost.In the case of possible one kind, work as spray gun
When 1 damage cannot work on or the damage of 1 a certain accessory of spray gun needs maintenance, it can be moved by mobile putter 43, spray gun 1 is drawn
Go out, it is convenient that maintenance replacement is carried out to it, progress dismounting and change is needed compared to existing fixed spray gun, saves time and labour
Power effectively increases denitration efficiency, reduces production cost.
The electric pushrod 4 further includes control device 45 and displacement sensor 46, which is set to the shifting
On dynamic push rod 43, the distance that displacement sensor 46 can move mobile putter 43 is detected, and can be by the displacement distance of detection
It is converted into electric signal.
The control device 45 is connect with motor 41, controls the start and stop of motor 41, is sprayed to be controlled by motor 41
The back-and-forth motion of rifle 1 realizes the automation of spray gun movement, has saved labour, improved denitration efficiency.
The control device 45 is connect with displacement sensor 46, and displacement sensor 46 changes the displacement distance of mobile putter 43
At electric signal, it is sent to control device 45.Control device 45 passes through motor 41, control movement by judging the moving distance value
Whether push rod 43 continues to move along, and to control the displacement distance of spray gun 1, spray gun 1 is avoided not extend into boiler or stretched into
Short, denitrfying agent is sprayed on installation casing 2, cannot reach denitration effect.Or spray gun 1 stretches into long in boiler, denitration effect is not
While good, 1 gun body large area of spray gun by flue dust fretting corrosion, and easily with boiler wall 5 collide, shorten spray gun 1 use,
Increase the cost of denitration.The adjusting control to spray gun displacement distance is realized, is avoided due to artificial carelessness or inaccuracy,
Spray gun is set to be hit or the damages such as flue dust fretting corrosion, while improving denitration effect, extend spray gun 1 uses the longevity
Life.
Attached drawing 2 is please referred to, the figure shows the structure of Mobile spray gun provided in this embodiment in a non-operative state to show
It is intended to.
When spray gun 1 needs to carry out denitration work, the distance value that spray gun 1 moves is set by control device 45 first, such as
300mm.Control device 45 starts motor 41, drives mobile putter 43 to be moved to the direction of motor 41 by transmission device 42, moves
Dynamic push rod 43 drives spray gun 1 to be moved to the direction of boiler wall 5 by connecting rod 44, and into installation casing 2, spray gun 1 continues to move
It is dynamic.The moving distance information of mobile putter 43 is sent to control device 45 by displacement sensor 46, when shift length reaches 300mm
When, the control motor 41 of control device 45 is out of service, and spray gun 1 stops movement, carries out the sprinkling work of denitrfying agent.
When the work of spray gun 1 terminates to need not continue to carry out, or carries out maintenance replacement, control device 45 starts electricity
Machine 41 drives mobile putter 43 to be moved to the direction opposite with motor 41 by transmission device 42, and mobile putter 43 passes through connection
Bar 44 drives spray gun 1 to be moved to 5 opposite direction of boiler wall, so that spray gun 1 is exited outside installation casing 2, avoids spray gun 1 and continue to stay in
By the friction and corrosion of high-temperature smoke in boiler, the service life of spray gun 1 is extended；Spray gun 1 automatically exits from simultaneously, is convenient to examine
Replacement is repaiied, denitration efficiency is improved, reduces production cost.
Optionally, it is equipped with push jack 21 in installation casing 2, after spray gun 1 exits installation casing 2, push jack 21 can stop boiler
Interior flue dust is flowed out by installing casing 2 outside boiler, builds good working environment, staff is avoided to be polluted by flue dust
Injury.The top of the push jack 21 is flexibly connected with installation 2 upper inside walls of casing, to realize push jack 21 under the action of certain external force
It is removable.When mobile putter 43 drives spray gun 1 to enter installation casing 2, push jack 21 is movable under the thrust of spray gun 1,
To not influence the advance of spray gun 1.
21 bottom end of push jack is enclosed with sponge, and push jack 21 is boosted in spray gun 1, into installation casing 2 and when moving forward,
The sponge of 21 bottom end of push jack can reduce the friction of 21 bottom end of push jack and 1 gun body of spray gun, reduce abrasion of the push jack 21 to spray gun 1, prolong
The service life of long spray gun 1.
Optionally, electric pushrod 4 is set to 3 top of mounting bracket by bearing 6, and bearing 6 connects mounting bracket 3 and electric pushrod 4
It connects, plays the role of supporting electric pushrod 4.
The middle part of mobile putter 43 is connect by holder 7 with mounting bracket 3, and holder 7 plays the role of supporting mobile putter 43,
And meet and be flexibly connected with mobile putter 43, when not interfering the movement of mobile putter 43, and being conducive to electric pushrod 4 and work
The stability of structure.
Optionally, installation casing 2 is equipped with blow valve port 22, and the delay cigarette in installation casing 2 can be cleared up by blow valve port 22
Dirt, avoid due to dust overstock, cause installation casing 2 and spray gun 1 on other accessories because dust be sintered, lead to not dismounting or
Mobile problem.The blow valve port 22 is located at outside boiler wall 5, and blow valve port 22 can connect blowing plant, in deashing process, holds
Continue or be periodically passed through compressed air, achievees the purpose that deashing.
Optionally, 3 side wall of mounting bracket is equipped with sealing shroud 31, the sealing shroud 31 and installation 2 coaxial communication of casing setting.It is close
Big envelope 31 can increase the leakproofness of installation casing 2, avoid flue dust in boiler when spray gun 1 is entered by safety trocar in boiler
Outflow, builds good working environment；Meanwhile the sealing shroud 31 also acts as the effect of support spray gun 1, avoids spray gun 1 and installation
The friction of 2 inner wall of casing extends the service life of spray gun 1, reduces denitration cost.
Optionally, 1 front end sleeve of spray gun is equipped with detachable protective casing 11, and the protection sleeve pipe 11 is by wear-resisting, high temperature resistant, resistance to
The material of corrosion is made, and spray gun 1 can be protected to stretch into installation casing 2 and stretch into the part in boiler, reduce the rate of depreciation of spray gun 1,
Extend 1 service life of spray gun.Since spray gun 1 is often in high temperature, highly corrosive works in the environment of high erosion, causes protective case
The abrasion of pipe 11, the protection sleeve pipe 11 abrasion to a certain extent when, cannot play a very good protection to spray gun 1, need by
It is replaced, therefore protection sleeve pipe 11 is connected to 1 front end of spray gun by dismountable mode, to facilitate its dismounting and change.It is this can
The connection type of dismounting can be by anchor ear, the connections such as clamping.
Optionally, which is additionally provided with air and liquid mixer 12, the denitrfying agent entrance being connected to the air and liquid mixer 12
13 and gas access 14, which is arranged close to 1 front end of the spray gun, and denitrfying agent and compressed air are respectively from denitration
Agent entrance 13 and gas access 14 enter, and meet in a mixer, and denitrfying agent starts to be atomized under the pressure effect of compressed gas,
Atomizing particle is formed, the denitrfying agent after atomization is sprayed under the promotion of gas, by 1 ontology of spray gun and sprays, with boiler flue
Interior flue dust contact, has the function that denitration.
Optionally, it is equipped with solenoid valve 15 at the denitrfying agent entrance 13 and the gas access 14, the solenoid valve 15 and control
Device 45 connects, and when spray gun 1 moves into boiler, can control denitrfying agent by control device 45 and air enter spray gun 1
Time, flow velocity and flow etc. realize the automation of denitration spray gun work, save labour.
Optionally, the moving range of the denitration spray gun is 150mm-800mm, by the way that different 1 movings range of spray gun is arranged,
The Mobile spray gun that different size can be obtained is used in the boiler of different type factory, expands making for mobile denitration spray gun
Use range.
Optionally, which can be silicon carbide protection sleeve pipe, and silicon carbide has good heat resistance and wear-resisting
Performance, hardness can reach HRC92-94 degree, be disposed on spray gun 1, can effectively improve the Wear-resistant, high-temperature resistant of spray gun 1
Can, the service life of spray gun 1 is extended 1-2 times.Certain above-mentioned protection sleeve pipe 11 can also be by other wear-resisting, high temperature resistants, resistance to
The material of corrosion is made.Specifically, those skilled in the art can fit the material of protection sleeve pipe 11 for specific environment
Work as selection, however it is not limited to carbofrax material.
Movable type denitration spray gun provided by the utility model, mobility and the displacement distance for realizing denitration spray gun are controllable
Property.Compared to the existing denitration spray gun being fixed on boiler wall, solve spray gun when not in use, it still can be by high-temperature smoke
The problem of friction and corrosion, in the case where not influencing denitration effect, the service life of denitration spray gun is extended, reduces production
Cost；Meanwhile facilitating the repair and replacement of spray gun and spray gun fittings, denitration efficiency is improved, denitration cost is reduced.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include but also include not having so that article or equipment including a series of elements include not only those elements
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited by sentence "including a ..." in the case of more limiting, it is not excluded that in the mistake for including the element
There is also other identical elements in journey, method, article or equipment.
The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (10)
1. a kind of movable type denitration spray gun, which is characterized in that including spray gun (1), installation casing (2) and is set to mounting bracket (3)
Electric pushrod (4) on the mounting bracket (3), wherein
One end of the installation casing (2) is set on the side wall of the mounting bracket (3), and the other end is set on boiler wall (5),
It is internal that the spray gun (1) is sheathed on the installation casing (2)；
The electric pushrod (4) includes motor (41), transmission device (42) and mobile putter (43), the motor (41) and institute
One end connection of transmission device (42) is stated, the other end of the transmission device (42) connects with one end of the mobile putter (43)
It connects, the other end of the mobile putter (43) is connect by connecting rod (44) with the end of the spray gun (1)；
The electric pushrod (4) further includes control device (45) and displacement sensor (46), institute's displacement sensors (46) setting
In on the mobile putter (43), the control device (45) is respectively with the motor (41), and institute's displacement sensors (46) are even
It connects.
2. movable type denitration spray gun according to claim 1, which is characterized in that be equipped with push jack in the installation casing (2)
(21), push jack (21) top is flexibly connected with installation casing (2) upper inside walls, and push jack (21) bottom end is enclosed with
Sponge.
3. movable type denitration spray gun according to claim 1, which is characterized in that the electric pushrod (4) passes through bearing (6)
Above the mounting bracket (3), the middle part of the mobile putter (43) is connect by holder (7) with the mounting bracket (3).
4. movable type denitration spray gun according to claim 1, which is characterized in that the installation casing (2) is equipped with purging
Mouth (22), the blow valve port (22) are located at the boiler wall (5) outside.
5. movable type denitration spray gun according to claim 1, which is characterized in that be additionally provided on mounting bracket (3) side wall
Sealing shroud (31), the sealing shroud (31) are arranged with installation casing (2) coaxial communication.
6. movable type denitration spray gun according to claim 1, which is characterized in that spray gun (1) front end sleeve is equipped with removable
The protection sleeve pipe (11) unloaded.
7. movable type denitration spray gun according to claim 1, which is characterized in that spray gun (1) end is additionally provided with gas-liquid
Mixer (12), the denitrfying agent entrance (13) being connected to the air and liquid mixer (12) and gas access (14), the denitrfying agent
Entrance (13) is arranged close to the spray gun (1) front end.
8. movable type denitration spray gun according to claim 7, which is characterized in that the denitrfying agent entrance (13) and the gas
Solenoid valve (15) is equipped at body entrance (14), the solenoid valve (15) connect with the control device (45).
9. movable type denitration spray gun according to claim 1, which is characterized in that the moving range of the denitration spray gun is
150mm-800mm。
10. movable type denitration spray gun according to claim 6, which is characterized in that the protection sleeve pipe (11) is silicon carbide
Protection sleeve pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017210889834 | 2017-08-29 | ||
| CN201721088983 | 2017-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207871899U true CN207871899U (en) | 2018-09-18 |
Family
ID=63502529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721751244.9U Active CN207871899U (en) | 2017-08-29 | 2017-12-15 | Mobile denitration spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207871899U (en) |
-
2017
- 2017-12-15 CN CN201721751244.9U patent/CN207871899U/en active Active
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