CN203459196U - Denitration two-fluid spray gun - Google Patents
Denitration two-fluid spray gun Download PDFInfo
- Publication number
- CN203459196U CN203459196U CN201320505031.3U CN201320505031U CN203459196U CN 203459196 U CN203459196 U CN 203459196U CN 201320505031 U CN201320505031 U CN 201320505031U CN 203459196 U CN203459196 U CN 203459196U
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- China
- Prior art keywords
- gun barrel
- air inlet
- compressed air
- mixing device
- inlet pipe
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- Withdrawn - After Issue
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Abstract
The utility model discloses a denitration two-fluid spray gun which comprises a gas-liquid mixing device and a gun barrel communicated with the gas-liquid mixing device. A spray nozzle is arranged in the gun barrel at the position of a gun barrel nozzle orifice; the gas-liquid mixing device is provided with a solution inlet and a compressed air inlet; the gun barrel is provided with a shielding gas inlet; an ammonia solution storage tank is communicated with the solution inlet by an ammonia solution inlet pipe; the ammonia solution inlet pipe is provided with a liquid inlet regulating valve; a compressed air storage device is communicated with the compressed gas inlet by a first gas inlet pipe; the first gas inlet pipe is provided with a first gas inlet regulating valve; the compressed air storage device is communicated with the shielding gas inlet by a second gas inlet pipe; the second gas inlet pipe is provided with a second gas inlet regulating valve; the outer wall of the gun barrel is provided with a protection sleeve; one end of the protection sleeve extends to the gun barrel nozzle orifice; and the outer wall of the lower side of the protection sleeve near the gun barrel nozzle orifice is provided with a diversion nozzle extending out of the gun barrel nozzle orifice. The denitration two-fluid spray gun has the advantages of long service life and no corrosion to a liner of a water-cooled wall of a coal-fired boiler.
Description
Technical field
The utility model relates to a kind of denitration two-fluid spray gun that coal-burning boiler denitration is used.
Background technology
In denitration industry, the denitration of using at present by the structure of two-fluid spray gun is: comprise ammonia spirit storage tank, compressed air caisson, Liqiud-gas mixing device, and the gun barrel being connected with Liqiud-gas mixing device, in the gun barrel of gun barrel nozzle, be arranged with nozzle; On Liqiud-gas mixing device, offer solution inlet port and compressed air inlet, offer the import of protection gas on gun barrel, ammonia spirit storage tank is connected with the solution inlet port of Liqiud-gas mixing device by ammoniacal liquor feed tube, is provided with feed liquor control valve on ammoniacal liquor feed tube; Compressed air caisson is connected with the compressed air inlet of Liqiud-gas mixing device by the first air inlet pipe, is provided with the first air inlet adjustment valve in the first air inlet pipe; Compressed air caisson is connected with the protection gas import of gun barrel by the second air inlet pipe, is provided with the second control valve in the second air inlet pipe.When actual installation, the spout of gun barrel need put in high temperature coal boiler.This denitration by the shortcoming of two-fluid spray gun is: gun barrel is short the service life under hot conditions, and when ammonia spirit sprays into coal-burning boiler from gun barrel spout, at the residual ammonia spirit of gun barrel nozzle, very easily there is to hang palpus phenomenon, these occur to be hung the ammonia spirit water-cooling wall that easily flows to high temperature coal boiler along the outer wall that is positioned at this section of gun barrel of coal-burning boiler that must phenomenons and are lining with, thereby cause the safety in production of corrosion ，Wei enterprise to bury hidden danger to water-cooling wall liner.
Utility model content
The purpose of this utility model is to provide a kind of long service life, can cause to the water-cooling wall liner of coal-burning boiler a kind of denitration two-fluid spray gun of corrosion.
For achieving the above object, the utility model has adopted following technical scheme: described a kind of denitration two-fluid spray gun, comprise ammonia spirit storage tank, compressed air caisson, Liqiud-gas mixing device, and the gun barrel being connected with Liqiud-gas mixing device, in the gun barrel of gun barrel nozzle, be arranged with nozzle; On Liqiud-gas mixing device, offer solution inlet port and compressed air inlet, offer the import of protection gas on gun barrel, ammonia spirit storage tank is connected with the solution inlet port of Liqiud-gas mixing device by ammoniacal liquor feed tube, is provided with feed liquor control valve on ammoniacal liquor feed tube; Compressed air caisson is connected with the compressed air inlet of Liqiud-gas mixing device by the first air inlet pipe, is provided with the first air inlet adjustment valve in the first air inlet pipe; Compressed air caisson is connected with the protection gas import of gun barrel by the second air inlet pipe; in the second air inlet pipe, be provided with the second air inlet adjustment valve; outer wall at gun barrel is arranged with protective casing; one end of protective casing extends to gun barrel spout, is provided with the flow-guiding mouth of protruding gun barrel spout on the downside outer wall of the protective casing near gun barrel spout.
Further, aforesaid a kind of denitration two-fluid spray gun, wherein: described flow-guiding mouth is curved is bent downwardly setting.
By the enforcement of technique scheme, the utlity model has long service life, can not cause the advantage that burn into production security is high to the water-cooling wall liner of coal-burning boiler.
Accompanying drawing explanation
Fig. 1 is the structural representation of two-fluid spray gun for a kind of denitration described in the utility model.
Fig. 2 is the installation site schematic diagram of two-fluid spray gun and coal-burning boiler for a kind of denitration shown in Fig. 1.
Fig. 3 is the enlarged diagram at the H position shown in Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, described a kind of denitration two-fluid spray gun, comprises ammonia spirit storage tank 1, compressed air caisson 2, Liqiud-gas mixing device 3, and the gun barrel 4 being connected with Liqiud-gas mixing device 3 are arranged with nozzle 5 in the gun barrel 4 of gun barrel 4 nozzles; On Liqiud-gas mixing device 3, offer solution inlet port and compressed air inlet, on gun barrel 4, offer the import of protection gas, ammonia spirit storage tank 1 is connected with the solution inlet port of Liqiud-gas mixing device 3 by ammoniacal liquor feed tube 6, is provided with feed liquor control valve 7 on ammoniacal liquor feed tube 6; Compressed air caisson 2 is connected with the compressed air inlet of Liqiud-gas mixing device 3 by the first air inlet pipe 8, is provided with the first air inlet adjustment valve 9 in the first air inlet pipe 8; Compressed air caisson 2 is connected with the protection gas import of gun barrel 4 by the second air inlet pipe 10, in the second air inlet pipe 10, be provided with the second air inlet adjustment valve 11, outer wall at gun barrel 4 is arranged with protective casing 12, one end of protective casing 12 extends to gun barrel 4 spouts, is provided with the flow-guiding mouth 13 of protruding gun barrel 4 spouts on the downside outer wall of the protective casing 12 near gun barrel 4 spouts; In the present embodiment, described flow-guiding mouth 13 is curved is bent downwardly setting, can to remaining in the ammonia spirit of gun barrel 4 nozzles, carry out water conservancy diversion better like this.When actual installation, one end that the gun barrel 4 of protective casing 12 is housed is passed to the water-cooling wall liner 14 of coal-burning boiler 15, make the nearly gun barrel spout end of protective casing 12, the spout of gun barrel 4, and flow-guiding mouth 13 is positioned at coal-burning boiler 15, can protect by 12 pairs of gun barrels 4 of protective casing like this, thereby extended the service life of gun barrel 4, and by flow-guiding mouth 13, the ammonia spirit that remains in gun barrel 4 nozzles is guided in coal-burning boiler 15, avoided residual ammonia spirit along the outer wall that is positioned at this segment protect sleeve pipe 12 of coal-burning boiler 15, to be back on the water-cooling wall liner 14 of coal-burning boiler 15, thereby make ammonia spirit can not cause corrosion to water-cooling wall liner 14, improved production security.
Operation principle of the present utility model is as follows: first open the second air inlet adjustment valve 11, compressed air in compressed air caisson 2 is entered in gun barrel 4 from the protection gas import of gun barrel 4, make compressed air form one deck compressed air protective layer at the inwall of gun barrel 4 and the inwall of nozzle 5, then open again feed liquor control valve 7 and the first air inlet adjustment valve 9 simultaneously, ammonia spirit in ammonia spirit storage tank 1 is entered to Liqiud-gas mixing device 3 from solution inlet port, compressed air in compressed air caisson 2 is entered to Liqiud-gas mixing device 3 from compressed air inlet, make ammonia spirit with compressed air in interior even mixing by gun barrel 4 of Liqiud-gas mixing device 3, nozzle 5 sprays in coal-burning boiler 15, because the inwall of gun barrel 4 and the inwall of nozzle 5 have the protection of compressed air protective layer, ammonia spirit can not cause corrosion to the inwall of the inwall of gun barrel 4 and nozzle 5, further extended the service life of gun barrel 4 and nozzle 5, after ammonia spirit completes once injection, the ammonia spirit that remains in gun barrel 4 nozzles the guiding of flow-guiding mouth 13 downstream to coal-burning boiler 15 in, ammonia spirit can not flow on the water-cooling wall liner 14 of coal-burning boiler 15 along the outer wall that is positioned at this segment protect sleeve pipe 12 of coal-burning boiler 15, thereby avoided water-cooling wall liner 14 to be corroded by ammonia spirit, improved production security.The utlity model has long service life, can not cause the advantage that burn into production security is high to the water-cooling wall liner of coal-burning boiler.
Claims (2)
1. a denitration two-fluid spray gun, comprises ammonia spirit storage tank, compressed air caisson, and Liqiud-gas mixing device, and the gun barrel being connected with Liqiud-gas mixing device are arranged with nozzle in the gun barrel of gun barrel nozzle; On Liqiud-gas mixing device, offer solution inlet port and compressed air inlet, offer the import of protection gas on gun barrel, ammonia spirit storage tank is connected with the solution inlet port of Liqiud-gas mixing device by ammoniacal liquor feed tube, is provided with feed liquor control valve on ammoniacal liquor feed tube; Compressed air caisson is connected with the compressed air inlet of Liqiud-gas mixing device by the first air inlet pipe, is provided with the first air inlet adjustment valve in the first air inlet pipe; Compressed air caisson is connected with the protection gas import of gun barrel by the second air inlet pipe; in the second air inlet pipe, be provided with the second air inlet adjustment valve; it is characterized in that: the outer wall at gun barrel is arranged with protective casing; one end of protective casing extends to gun barrel spout, is provided with the flow-guiding mouth of protruding gun barrel spout on the downside outer wall of the protective casing near gun barrel spout.
2. a kind of denitration two-fluid spray gun according to claim 1, is characterized in that: described flow-guiding mouth is curved is bent downwardly setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505031.3U CN203459196U (en) | 2013-08-19 | 2013-08-19 | Denitration two-fluid spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505031.3U CN203459196U (en) | 2013-08-19 | 2013-08-19 | Denitration two-fluid spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459196U true CN203459196U (en) | 2014-03-05 |
Family
ID=50171577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320505031.3U Withdrawn - After Issue CN203459196U (en) | 2013-08-19 | 2013-08-19 | Denitration two-fluid spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203459196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433163A (en) * | 2013-08-19 | 2013-12-11 | 江苏新中环保股份有限公司 | Double-fluid spray gun for denitration |
-
2013
- 2013-08-19 CN CN201320505031.3U patent/CN203459196U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433163A (en) * | 2013-08-19 | 2013-12-11 | 江苏新中环保股份有限公司 | Double-fluid spray gun for denitration |
| CN103433163B (en) * | 2013-08-19 | 2016-08-10 | 江苏新中环保股份有限公司 | A kind of Double-fluid spray gun for denitration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160810 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160810 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |