CN206474320U - A kind of spray gun being applied in SNCR denitration device - Google Patents
A kind of spray gun being applied in SNCR denitration device Download PDFInfo
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- CN206474320U CN206474320U CN201720161247.0U CN201720161247U CN206474320U CN 206474320 U CN206474320 U CN 206474320U CN 201720161247 U CN201720161247 U CN 201720161247U CN 206474320 U CN206474320 U CN 206474320U
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- spray gun
- silk
- gun
- snap joint
- single head
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Abstract
The utility model be related to it is a kind of be applied to SNCR denitration device in spray gun, including gun body mixing module, single head silk, spray gun gun barrel, the first snap joint, the second snap joint, spray gun protection sleeve pipe, fiber tube, ball valve, to silk and y-type filter；The gun body mixing module is provided with the port of export, first entrance end and second entrance end；The first entrance end and second entrance end be fixedly connected sequentially fiber tube, ball valve, to silk, y-type filter and to silk；The port of export is fixedly connected with single head silk；The spray gun gun barrel entrance point is fixed on single head silk；First snap joint is connected by screw thread with single head silk；The spray gun protection sleeve pipe entrance point is fixedly connected by the second snap joint with the first snap joint；The problem of the utility model overcomes existing minor diameter SNCR spray guns temperature distortion completely can not take out processing in boiler furnace, so as to change conveniently advantage with maintenance.
Description
Technical field
The utility model is related to lance technology field, specially a kind of spray gun being applied in SNCR denitration device.
Background technology
SNCR denitration technology is SNCR (Selective Non-Catalytic Reduction) skill
Art, is a kind of without catalyst, within the temperature range of 850~1100 DEG C, by reducing agent (such as ammoniacal liquor, urea containing amino
Solution etc.) spray into stove, the NOx that flue gas collects is reduced and removed, the cleaning denitration technology of generation ammonia and water.
SNCR denitration device is due to transformation simplicity, investing the low advantage extensive use of low and operation cost and firepower hair
In electrically and thermally power boiler.SNCR spray guns are generally disposed at boiler furnace middle and upper part, because boiler water wall tube pitch is smaller, in recent years
Generally to start to use minor diameter spray gun, to avoid conventional lance from installing retrofit work (the water-cooling wall transformation to water-cooling wall bend pipe
It is very cumbersome).
Under above-mentioned background, in numerous SNCR denitration runnings, because fire box temperature is high, minor diameter is frequently resulted in
The problem of together with protective cannula is simultaneously heated temperature deformation occurs for SNCR spray guns.And general minor diameter SNCR spray guns are together with sleeve pipe
Maximum outside diameter is not more than 25mm, it is ensured that on the premise of wall thickness, can only reduce spray gun and the gap in sleeve pipe as far as possible, is so occurring
It is very difficult if it need to clear up the reasons such as pipette tips and want to take out spray gun from originally minimum gap after deformation, often have to
Cutting discards this whole set of SNCR spray gun and sleeve pipe, and resets perforate and new spray gun.
Utility model content
The purpose of this utility model is a kind of spray gun being applied in SNCR denitration device of offer, and it can effectively solve the problem that
Problem present in background technology.
To achieve the above object, the utility model provides following technical scheme：It is a kind of to be applied in SNCR denitration device
Spray gun, including Part I and Part II；The Part I include gun body mixing module, single head silk, spray gun gun barrel,
First snap joint, the second snap joint, spray gun protection sleeve pipe, fiber tube, ball valve, to silk and y-type filter；The gun body
Mixing module is provided with the port of export, first entrance end and second entrance end；The first entrance end and second entrance end are solid successively
Surely fiber tube, ball valve are connected, to silk, y-type filter and to silk；The port of export is fixedly connected with single head silk；The spray gun gun barrel enters
Mouth end is fixed on single head silk；First snap joint is connected by screw thread with single head silk；The spray gun protection sleeve pipe is entered
Mouth end is fixedly connected by the second snap joint with the first snap joint；The Part II includes fixed sleeving and water-cooling wall；
The fixed sleeving is fixedly connected with water-cooling wall.
Further, the gun body mixing module is the gun body mixing module with 310S stainless steels.
Further, the fiber tube is provided with pressure gauge base.
Further, the fixed sleeving is provided with fixed screw.
Compared with prior art, the beneficial effects of the utility model are：This is applied to the spray gun knot in SNCR denitration device
Structure is simple, easy to process；The temperature distortion in boiler furnace of existing minor diameter SNCR spray guns is overcome can not completely to take out processing
Problem, so as to change conveniently advantage with maintenance.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is explosive view of the present utility model；
Fig. 3 is gun body mixing module structural representation in the utility model；
In reference：1. gun body mixing module；2. single head silk；3. spray gun gun barrel；4. the first snap joint；5. the
Two snap joints；6. spray gun protection sleeve pipe；7. fiber tube；8. ball valve；9. pair silk；10.Y type filters；11. fixed sleeving；12. it is solid
Determine screw；13. water-cooling wall；A. the port of export；B. first entrance end；C. second entrance end.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of spray being applied in SNCR denitration device
Rifle, including Part I and Part II；Part I includes gun body mixing module 1, single head silk 2, spray gun gun barrel 3, the
One snap joint 4, the second snap joint 5, spray gun protection sleeve pipe 6, fiber tube 7, ball valve 8, to silk 9 and y-type filter 10；Spray gun sheet
Body mixing module 1 is the gun body mixing module with 310S stainless steels, provided with port of export a, first entrance end b and the
Two arrival end c；First entrance end b and second entrance end c be fixedly connected sequentially fiber tube 7, ball valve 8, to silk 9, y-type filter 10
With to silk 9；Fiber tube 7 is provided with pressure gauge base, can install pressure gauge, carries out the measurement of air pressure；It is outermost that silk 9 is gone back with out of stock
Former agent and compressed air line are attached；Port of export a is fixedly connected with single head silk 2；The entrance point of spray gun gun barrel 3 is fixed on single head silk
On 2；First snap joint 4 is connected by screw thread with single head silk 2；The entrance point of spray gun protection sleeve pipe 6 passes through the second snap joint 5
It is fixedly connected with the first snap joint 4；Spray gun protection sleeve pipe 6 is first of gun barrel protective case；
Part II includes fixed sleeving 11 and water-cooling wall 13；Fixed sleeving 11 is fixedly connected with water-cooling wall 13；In use,
First spray gun fixed sleeving 11 is directly welded in the gap of the water cooling tube of water-cooling wall 13, then by the spray gun gun barrel in Part I
3 and spray gun protection sleeve pipe 6 insertion fixed sleeving 11 in, stretch into after boiler furnace, fixed with fixed screw 12.
The spray gun being applied in SNCR denitration device overcomes existing minor diameter SNCR spray guns to be become in boiler furnace by heat
The problem of shape completely can not take out processing, so as to change conveniently advantage with maintenance
Ammoniacal liquor is used as exemplified by the out of stock devices of reducing agent SNCR using certain heating plant：20% concentration ammoniacal liquor in tank used for storing ammonia
Solution with softening water storage tank softened water be diluted to 10% concentration or so by mixing weighing module, by distribute module distribute to
Each spray gun reducing agent entrance；Meanwhile, compressed air is distributed to the atomization compressed air inlet of correspondence spray gun, warp from air compression tank
Cross after gun body mixing module 1, ammonia spirit atomization is sprayed for droplet through spray gun gun barrel 3, spray and occur in burner hearth
SNCR reacts；Through using after a while, the high temperature in burner hearth necessarily causes temperature deformation, and we carry out conventional guarantor to spray gun
Support, fixed screw 12 can be unclamped, it is overall to take out Part I, reparation maintenance is carried out, puts in back and is continuing with after maintenance.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of spray gun being applied in SNCR denitration device, including Part I and Part II；It is characterized in that：Described
A part includes gun body mixing module (1), single head silk (2), spray gun gun barrel (3), the first snap joint (4), second quick
Joint (5), spray gun protection sleeve pipe (6), fiber tube (7), ball valve (8), to silk (9) and y-type filter (10)；The gun body is mixed
Matched moulds block (1) is provided with the port of export (a), first entrance end (b) and second entrance end (c)；The first entrance end (b) and second enters
Mouthful end (c) be fixedly connected sequentially fiber tube (7), ball valve (8), to silk (9), y-type filter (10) and to silk (9)；The outlet
End (a) is fixedly connected with single head silk (2)；Spray gun gun barrel (3) entrance point is fixed on single head silk (2)；Described first quickly connects
Head (4) is connected by screw thread with single head silk (2)；Spray gun protection sleeve pipe (6) entrance point by the second snap joint (5) with
First snap joint (4) is fixedly connected；The Part II includes fixed sleeving (11) and water-cooling wall (13)；The fixed sleeving
(11) it is fixedly connected with water-cooling wall (13).
2. a kind of spray gun being applied in SNCR denitration device according to claim 1, it is characterised in that：The spray gun sheet
Body mixing module (1) is the gun body mixing module with 310S stainless steels.
3. a kind of spray gun being applied in SNCR denitration device according to claim 1, it is characterised in that：The fiber tube
(7) it is provided with pressure gauge base.
4. a kind of spray gun being applied in SNCR denitration device according to claim 1, it is characterised in that：The fixed cover
Manage (11) and be provided with fixed screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161247.0U CN206474320U (en) | 2017-02-22 | 2017-02-22 | A kind of spray gun being applied in SNCR denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161247.0U CN206474320U (en) | 2017-02-22 | 2017-02-22 | A kind of spray gun being applied in SNCR denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206474320U true CN206474320U (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720161247.0U Active CN206474320U (en) | 2017-02-22 | 2017-02-22 | A kind of spray gun being applied in SNCR denitration device |
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| CN (1) | CN206474320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210500A1 (en) * | 2018-05-04 | 2019-11-07 | 江苏申江环境科技有限公司 | Novel sncr spray gun fixing device |
-
2017
- 2017-02-22 CN CN201720161247.0U patent/CN206474320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210500A1 (en) * | 2018-05-04 | 2019-11-07 | 江苏申江环境科技有限公司 | Novel sncr spray gun fixing device |
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