CN202538631U - Retractable spraying device - Google Patents
Retractable spraying device Download PDFInfo
- Publication number
- CN202538631U CN202538631U CN2012201075548U CN201220107554U CN202538631U CN 202538631 U CN202538631 U CN 202538631U CN 2012201075548 U CN2012201075548 U CN 2012201075548U CN 201220107554 U CN201220107554 U CN 201220107554U CN 202538631 U CN202538631 U CN 202538631U
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- CN
- China
- Prior art keywords
- spray gun
- gas
- medicament
- cylinder
- protective casing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model provides a retractable spraying device which has the advantages that a nozzle of a spray gun can be prevented from being burnt by high temperature to the utmost extent, scaling of dust on the nozzle of the spray gun is avoided, the service life of the spray gun is prolonged greatly, the spray gun is convenient to change, and operation and maintenance costs are reduced. The retractable spraying device comprises the spray gun and a flue wall, and is characterized by further comprising a protective sleeve. The front end of the protective sleeve is fixedly mounted onto the flue wall; a protective gas inlet is arranged on the outer ring surface, exposed from the flue wall, of the protective sleeve; a sleeve mounting flange is sleeved at the tail end of the protective sleeve; and the front end of the spray gun penetrates through the sleeve mounting flange and then extends into the protective sleeve and faces the flue. The portion, exposed from the protective sleeve, of the spray gun, is provided with a gas inlet and a chemical agent inlet; the gas inlet is connected with compressed gas outside; the chemical agent inlet is connected with chemical agents outside; and the compressed gas is connected into the chemical agent inlet through a gas purging switch valve.
Description
Technical field
The utility model relates to the technical field of smoke pollution prevention and cure project, is specially a kind of concertina type sprayer unit.
Background technology
Contain a large amount of nitrogen oxide in the flue gas that produces during industrial trade production run such as power plant or cement plant and (comprise NO, NO
2, N
2O etc. are referred to as NOx).This pollutant emission is can grievous injury physically and mentally healthy after by human body respiration to atmosphere, and the heavy damage environment, is considered to one of main source of atmosphere pollution and acid rain.In order to reduce the discharge capacity of nitrogen oxide in the flue gas; People utilize the non-catalytic reduction reaction principle; In the flue zone between 850 ℃ to 1150 ℃, spray certain density medicament (ammonia spirit or aqueous solution of urea) to temperature, nitrogen oxide (NOx) preferential reaction in medicament atomizing back and the flue gas generates N
2, H
2Innocuous substances such as O, thereby the discharge capacity of minimizing pollutant nitrogen oxide.Traditional sprayer unit is fixedly mounted in the eject position of burner hearth flue; No matter be the normal operation of system or break down; The nozzle of spray gun exposes all the time in the flue gas environment of high temperature, high dust concentration; The nozzle damage of often being burnt, and be easy to fouling and stop up can't be sprayed or extracted replacing out.The service life of nozzle is shorter, and maintain and replace is also inconvenient.
Summary of the invention
To the problems referred to above; The utility model provides a kind of concertina type sprayer unit; It can make the nozzle of spray gun avoid high temperature to greatest extent and burn and prevent dust fouling on spray tip; Thereby prolonged the service life of spray gun greatly, also be convenient to carry out spray gun and change, reduced operation maintenance cost.
A kind of concertina type sprayer unit, it comprises spray gun, hot wall, it is characterized in that: it also comprises protective casing; The front end of said protective casing is fastening to be installed on said hot wall; The outer ring surface that said protective casing exposes to said hot wall is provided with the gas atmosphere inlet, and the end of said protective casing is set with the sleeve pipe mounting flange, and the front end of said spray gun passes and gos deep into said protective casing behind the said sleeve pipe mounting flange and towards said flue; The said spray gun that exposes to said protective casing is provided with gas feed, medicament inlet; The external Compressed Gas of said gas feed, the external medicament of said medicament inlet, Compressed Gas connects said medicament inlet through the purge gas switch valve; The rear end of said spray gun is connected with drive unit, and the advance and retreat direction of the direction of motion of said drive unit and said spray gun is parallel.
It is further characterized in that: said drive unit is specially cylinder; Said cylinder is installed on cylinder mounting plate; The lower end of said cylinder mounting plate is fastenedly connected said sleeve pipe mounting flange; The piston rod of said cylinder connects the rear end of said spray gun through pull bar, and the advance and retreat direction of the direction of motion of the piston rod of said cylinder and said spray gun is parallel;
Two cavitys of said cylinder connect the instrument gas of magnetic valve switch unit respectively through the instrument supply gas hose body;
Said spray gun is set with movably mounting flange, and said movably mounting flange is fastenedly connected pipe connecting flange, and said pipe connecting flange connects said cylinder mounting plate through said adapter;
Compressed Gas passage pipeline connects said gas feed through the atomization gas delivery hose after connecting atomization gas switch valve, atomization gas flowmeter in order;
Medicament connects said medicament inlet through the drug delivery flexible pipe after connecting medicament switch valve, medicament flowmeter in order through pipeline;
Said Compressed Gas is communicated with said drug delivery flexible pipe after connecting said purge gas switch valve.
After adopting the structure of the utility model, protective gas gets into protective casing continuously, when spray gun stretches into the flue operation through the drive unit driving; Medicament and Compressed Gas get into spray gun respectively, and protective gas can make spray gun avoid high temperature and burn, and dust in flue gas is difficult for also that fouling meets with into obstruction on nozzle; When spray gun can not move for some reason or need not to move, medicament and Compressed Gas stopped to get into spray gun, and the purge gas switch valve is opened; Compressed Gas begins to get into the purging spray gun, and medicament residual in the spray gun is removed, and the front portion of spray gun returns in the protective casing under drive unit drives then; The more not fragile spray gun of high temperature with high dust flue gas like this; Do not have medicament to be trapped in spray gun internal corrosion spray gun for a long time simultaneously or the obstruction spray gun that condenses, it can make the nozzle of spray gun avoid high temperature to greatest extent and burn and prevent dust fouling on spray tip, thereby has prolonged the service life of spray gun greatly; Also be convenient to carry out spray gun and change, reduced operation maintenance cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
See Fig. 1; It comprises spray gun 1, hot wall 24, protective casing 5; The fastening hot wall 24 that is installed on of the front end of protective casing 5; The outer ring surface that exposes to hot wall 24 of protective casing 5 is provided with gas atmosphere inlet 8, and the end of protective casing 5 is set with sleeve pipe mounting flange 6, and the front end of spray gun 1 passes and gos deep into protective casing 5 behind the sleeve pipe mounting flange 5 and towards flue; The spray gun 1 that exposes to protective casing 5 is provided with gas feed 3, medicament inlet 4, and Compressed Gas passage pipeline connects atomization gas switch valve 11 in order, atomization gas flowmeter 12 backs connect gas feed 3 through atomization gas delivery hose 13;
Medicament connects medicament switch valve 9, medicament flowmeter 10 backs through drug delivery flexible pipe 14 connection medicament inlet in order through pipeline;
Compressed Gas connects purge gas switch valve 15 backs and is communicated with drug delivery flexible pipe 14;
The rear end of spray gun 1 is connected with drive unit; The advance and retreat direction of the direction of motion of drive unit and spray gun 1 is parallel; Drive unit is specially cylinder 19; Cylinder 19 is installed on cylinder mounting plate 17, and the lower end of cylinder mounting plate 17 is fastenedly connected sleeve pipe mounting flange 6, and the piston rod 23 of cylinder 19 connects the rear end of spray gun 1 through pull bar 16; The direction of motion of the piston rod 23 of cylinder 19 is parallel with the advance and retreat direction of spray gun 1; The instrument gas that two cavitys of cylinder 19 connect in the magnetic valve switch unit 22 through instrument supply gas hose body 20,21 respectively;
Spray gun 1 is set with movably mounting flange 2, and movably mounting flange 2 is fastenedly connected pipe connecting flange 7, and pipe connecting flange 7 connects cylinder mounting plate 17 through taking over 18.
Its operation principle is following: instrument gas gets into cylinder 19 through magnetic valve switch unit 22 by instrument supply gas hose body 20; Piston rod 23 drives pull bar 16 promotion spray guns 1 and stretches into flue; Medicament switch valve 9 is opened with atomization gas switch valve 11 in succession subsequently, and medicament sprays into flue after getting into the atomization gas atomizing that is got into behind the spray gun 1.When flowmeter 10 shows that the medicament flow is low excessively; Perhaps flowmeter 12 shows that the atomization gas flow is low excessively; Perhaps flue-gas temperature is not suitable for the medicament input, and in the time of perhaps artificially need not dropping into gun spraying, medicament switch valve 9 cuts out with atomization gas switch valve 11 in succession; Purge gas switch valve 15 is opened; Purge gas gets into spray gun 1 medicament in the spray gun is blown to the greatest extent, and instrument gas gets into cylinder 19 through magnetic valve switch unit 22 via instrument supply gas hose body 21 then, and piston rod 23 motions drive pull bar 16 spray gun 1 is withdrawn in the protective casing 5.No matter spray gun 1 stretches into flue is still withdrawed from flue; Protective gas all gets into protective casing 5 from protective casing import 8 and is blown into flue; Make spray tip avoid that high-temperature flue gas is burnt or high concentrate dust fouling on nozzle, reach the protection spray tip, prolong the spray gun purpose in 1 service life; Also make things convenient for spray gun maintenance and replacing, practiced thrift operation cost.
Claims (7)
1. concertina type sprayer unit, it comprises spray gun, hot wall, it is characterized in that: it also comprises protective casing; The front end of said protective casing is fastening to be installed on said hot wall; The outer ring surface that said protective casing exposes to said hot wall is provided with the gas atmosphere inlet, and the end of said protective casing is set with the sleeve pipe mounting flange, and the front end of said spray gun passes and gos deep into said protective casing behind the said sleeve pipe mounting flange and towards said flue; The said spray gun that exposes to said protective casing is provided with gas feed, medicament inlet; The external Compressed Gas of said gas feed, the external medicament of said medicament inlet, Compressed Gas connects said medicament inlet through the purge gas switch valve; The rear end of said spray gun is connected with drive unit, and the advance and retreat direction of the direction of motion of said drive unit and said spray gun is parallel.
2. a kind of concertina type sprayer unit according to claim 1; It is characterized in that: said drive unit is specially cylinder; Said cylinder is installed on cylinder mounting plate; The lower end of said cylinder mounting plate is fastenedly connected said sleeve pipe mounting flange, and the piston rod of said cylinder connects the rear end of said spray gun through pull bar, and the advance and retreat direction of the direction of motion of the piston rod of said cylinder and said spray gun is parallel.
3. a kind of concertina type sprayer unit according to claim 2 is characterized in that: two cavitys of said cylinder connect the instrument gas of magnetic valve switch unit respectively through the instrument supply gas hose body.
4. a kind of concertina type sprayer unit according to claim 3; It is characterized in that: said spray gun is set with movably mounting flange; Said movably mounting flange is fastenedly connected pipe connecting flange, and said pipe connecting flange connects said cylinder mounting plate through said adapter.
5. a kind of concertina type sprayer unit according to claim 1 is characterized in that: Compressed Gas passage pipeline connects said gas feed through the atomization gas delivery hose after connecting atomization gas switch valve, atomization gas flowmeter in order.
6. a kind of concertina type sprayer unit according to claim 1 is characterized in that: medicament connects said medicament inlet through the drug delivery flexible pipe after connecting medicament switch valve, medicament flowmeter in order through pipeline.
7. a kind of concertina type sprayer unit according to claim 1 is characterized in that: said Compressed Gas is communicated with said drug delivery flexible pipe after connecting said purge gas switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201075548U CN202538631U (en) | 2012-03-21 | 2012-03-21 | Retractable spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201075548U CN202538631U (en) | 2012-03-21 | 2012-03-21 | Retractable spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202538631U true CN202538631U (en) | 2012-11-21 |
Family
ID=47159325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201075548U Withdrawn - After Issue CN202538631U (en) | 2012-03-21 | 2012-03-21 | Retractable spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202538631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580508A (en) * | 2012-03-21 | 2012-07-18 | 无锡雪浪环境科技股份有限公司 | Telescopic spraying device |
| CN103691607A (en) * | 2013-12-26 | 2014-04-02 | 江苏科行环境工程技术有限公司 | Stretching device special for SNCR denitrification spray gun |
| CN109198714A (en) * | 2018-09-30 | 2019-01-15 | 安徽中烟工业有限责任公司 | A kind of cleaning apparatus for self of tin class flavoring equipment spraying device |
-
2012
- 2012-03-21 CN CN2012201075548U patent/CN202538631U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580508A (en) * | 2012-03-21 | 2012-07-18 | 无锡雪浪环境科技股份有限公司 | Telescopic spraying device |
| CN103691607A (en) * | 2013-12-26 | 2014-04-02 | 江苏科行环境工程技术有限公司 | Stretching device special for SNCR denitrification spray gun |
| CN109198714A (en) * | 2018-09-30 | 2019-01-15 | 安徽中烟工业有限责任公司 | A kind of cleaning apparatus for self of tin class flavoring equipment spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121121 Effective date of abandoning: 20140101 |
|
| RGAV | Abandon patent right to avoid regrant |