CN216261587U - Spray gun sleeve for denitration - Google Patents
Spray gun sleeve for denitration Download PDFInfo
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- CN216261587U CN216261587U CN202122808616.XU CN202122808616U CN216261587U CN 216261587 U CN216261587 U CN 216261587U CN 202122808616 U CN202122808616 U CN 202122808616U CN 216261587 U CN216261587 U CN 216261587U
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- sleeve
- spray gun
- flange
- end quick
- quick connector
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Abstract
The utility model discloses a spray gun sleeve for denitration, which comprises a spray gun, a first sleeve, a first flange, a second sleeve, a female-end quick connector, a male-end quick connector and a pipeline vibrator, wherein the first sleeve, the second sleeve, the female-end quick connector and the male-end quick connector are sequentially arranged outside the spray gun, the first flange and the second flange are arranged between the first sleeve and the second sleeve, the pipeline vibrator is arranged on the outer surface of the first sleeve or the second sleeve, the second sleeve is connected with the female-end quick connector, and the female-end quick connector is movably connected with the male-end quick connector. The utility model is convenient for cleaning ash, and the accumulated ash of the spray gun is vibrated to be loosened by the intermittent vibration of the pipeline vibrator, so that the crusting is not easy to form and the maintenance of the spray gun is influenced; in daily inspection of the spray gun, the spray gun needs to be inserted and pulled, the quick connectors at the male end and the female end are adopted, flange bolts do not need to be disassembled, the operation is easy, the workload is reduced, and the overhaul is more convenient; can be replaced on line under the condition of not influencing the normal operation of the equipment.
Description
Technical Field
The utility model relates to a spray gun sleeve, in particular to a spray gun sleeve for denitration.
Background
With the enhancement of public environmental awareness, the emission requirements of industrial atmospheric pollutants are stricter. In order to reduce the emission of nitrogen oxides, production enterprises have been increasingly modified with denitration techniques, one of which is SNCR or SCR denitration techniques, ammonia water or urea is sprayed into flue gas at a proper temperature by a spray gun to react with nitrogen oxides in the flue gas, thereby reducing the emission of nitrogen oxides. The atomization effect of the spray gun is one of key factors for denitration, and different manufacturers develop spray guns with different models according to the atomization characteristics of liquid, wherein the spray guns have different lengths and thicknesses. These spray guns all need install on equipment, and in order to protect the spray gun, it is convenient to overhaul, generally can be on equipment pre-buried sleeve pipe, and the spray gun is connected with the sleeve pipe.
The existing methods for overhauling and replacing the spray gun often have the following defects:
(1) since the female quick connector is welded with the sleeve, when the female quick connector is damaged and needs to be replaced, the female quick connector and the sleeve need to be cut off, and a new female quick connector is welded with the sleeve again, so that the spray gun is time-consuming, labor-consuming and extremely inconvenient;
(2) when the spray gun with the flange is overhauled, bolts of the flange need to be disassembled, so that the operation is complicated, the workload is large, and the overhauling time is long;
(3) the spray gun is not moved for a long time, and the dust accumulated on the gun body forms a crust, so that the spray gun is not easy to pull out from the sleeve, and the maintenance is seriously influenced;
(4) the spray gun of different models is changed, when the external diameter of new spray gun is greater than the sheathed tube internal diameter, or the operation of stopping equipment, pre-buried sleeve pipe again, or equipment is incessant, forces the pre-buried sleeve pipe of trompil again on the outer wall of equipment, and protective apparatus's refractory material then damages easily, drops, influences the normal operating of equipment, has very big potential safety hazard.
(5) When the spray gun is subjected to bending deformation, if the clearance between the outer diameter of the spray gun and the inner diameter of the sleeve is small, the spray gun cannot be pulled out of the sleeve, and the efficiency of a denitration system is affected.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the utility model aims to provide the denitration spray gun sleeve which is convenient to replace, overhaul and clean.
The technical scheme is as follows: the utility model relates to a spray gun sleeve for denitration, which comprises a spray gun, a first sleeve, a first flange, a second sleeve, a female-end quick connector, a male-end quick connector and a pipeline vibrator, wherein the first sleeve, the second sleeve, the female-end quick connector and the male-end quick connector are sequentially arranged outside the spray gun, the first flange and the second flange are arranged between the first sleeve and the second sleeve, the pipeline vibrator is arranged on the outer surface of the first sleeve or the second sleeve, the second sleeve is connected with the female-end quick connector, and the female-end quick connector is movably connected with the male-end quick connector.
Furthermore, the second sleeve is in threaded connection with the female-end quick connector, and when the female-end quick connector needs to be replaced, the threads between the female-end quick connector and the second sleeve are unscrewed, and then a new female-end quick connector is replaced.
Further, a sealing gasket is arranged between the first flange and the second flange, and the first flange, the sealing gasket and the second flange are fixedly connected through bolts.
Furthermore, the inner diameter of the first sleeve is larger than the outer diameter of the spray gun by more than 40mm, when the spray gun is subjected to large bending deformation and cannot be pulled out from the first sleeve, the bolt can be detached, and the second flange, the second sleeve, the pipeline vibrator, the female-end quick connector, the male-end quick connector, the positioning pin and the spray gun are integrally pulled out by utilizing a large clearance space between the spray gun and the first sleeve. The inner diameter of the first sleeve is larger than the inner diameter of the second sleeve. The nominal diameter of the second sleeve is equal to the nominal diameter of the female-end quick connector and the male-end quick connector.
Furthermore, the male end quick connector is fixedly connected with the spray gun through the positioning pin, when the spray gun needs to be replaced by the same type of spray gun, the positioning pin is unscrewed, the old spray gun is pulled out of the male end quick connector, the new spray gun is inserted into the male end quick connector, and then the positioning pin is screwed down. The handle is arranged on the female quick connector, so that the operation is convenient, and when the spray gun needs to be checked, the handle of the female quick connector is broken off, and the spray gun is pulled out together with the male quick connector.
Further, the first sleeve is welded to the outer wall of the device. The pipeline vibrator is fixedly connected with the first sleeve or the second sleeve, and the pipeline vibrator vibrates intermittently, so that dust is not easy to accumulate on the spray gun, the spray gun is easy to pull out from the first sleeve, and the maintenance is convenient.
The using method comprises the following steps: when the spray guns of different models need to be replaced and the outer diameter of the new spray gun is smaller than or equal to the inner diameter of the second sleeve, the positioning pin is unscrewed, the old spray gun is pulled out of the male quick coupling, the new spray gun is inserted into the male quick coupling, and then the positioning pin is screwed down.
When the spray guns need to be replaced by spray guns of different models, and the outer diameter of a new spray gun is larger than the inner diameter of the second sleeve and smaller than the inner diameter of the first sleeve, a new second flange, a second sleeve, a female quick connector, a male quick connector, a positioning pin and a pipeline vibrator are manufactured or purchased again according to the outer diameter of the new spray gun, and the new second flange, the second sleeve, the female quick connector, the male quick connector, the positioning pin and the pipeline vibrator are assembled and connected in sequence; and disassembling the connecting bolt of the first flange and the old second flange, fixing the newly assembled second flange with the first flange by using the bolt, inserting the new spray gun from the new male end quick joint, and then screwing the positioning pin.
When the spray gun is slightly bent and deformed, the spray gun is rotated by 180 degrees, the bent part is rotated to the opposite direction, the bending is corrected through the deformation of the spray gun, and the service life of the spray gun is prolonged.
Has the advantages that: compared with the prior art, the utility model has the following characteristics:
1. the dust removing is convenient, and the dust deposition vibration of the spray gun is loosened through the intermittent vibration of the pipeline vibrator, so that the crusting is not easy to form and the overhauling of the spray gun is influenced;
2. in daily inspection of the spray gun, the spray gun needs to be inserted and pulled, the quick connectors at the male end and the female end are adopted, flange bolts do not need to be disassembled, the operation is easy, the workload is reduced, and the overhaul is more convenient;
3. the spray guns of different manufacturers can be replaced on line under the condition of not influencing the normal operation of the equipment, so that the continuous and stable operation of the production line is ensured, the replacement is convenient and fast, and the adaptability is wide;
4. the spray gun can deal with special conditions, when the spray gun is slightly bent and deformed, the spray gun is rotated by 180 degrees, the bent part is rotated to the opposite direction, the bending is corrected through the deformation of the spray gun, and the service life of the spray gun is prolonged; when the spray gun is subjected to large bending deformation, the inner diameter of the first sleeve is far larger than the outer diameter of the spray gun, the bent spray gun can be pulled out of the first sleeve only by disassembling the flange, and the phenomenon that the spray gun is clamped in the sleeve cannot occur.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the spray gun 1 of the present invention in a weak bending deformation;
FIG. 3 is a cross-sectional view of the spray gun 1 of the present invention with a large bending deformation;
fig. 4 is a schematic view of the disassembly of the spray gun 1 according to the utility model in the event of a large bending deformation.
Detailed Description
Example 1
Referring to fig. 1, a first sleeve 2 is welded on the outer wall 12 of the device, and the first sleeve 2 is sleeved on the spray gun 1 and is welded and fixed with a first flange 3. A sealing gasket 5 is arranged between the first flange 3 and the second flange 6, and the first flange 3, the sealing gasket 5 and the second flange 6 are fixed by bolts 4. The second flange 6 is welded with the second sleeve 7, the pipeline vibrator 11 is fixed on the second sleeve 7, the second sleeve 7 is in threaded connection with the female-end quick joint 8, and the female-end quick joint 8 is movably connected with the male-end quick joint 9. A positioning pin 10 is arranged on the male end quick connector 9, the spray gun 1 sequentially penetrates through the male end quick connector 9, the female end quick connector 8, the second sleeve 7, the second flange 6, the sealing gasket 5, the first flange 3 and the first sleeve 2 from right to left and then is inserted into the equipment, and finally the spray gun 1 is fixed by the positioning pin 10. The inner diameter of the first sleeve 2 is larger than the outer diameter of the spray gun 1 by more than 40mm, the inner diameter of the first sleeve 2 is larger than the inner diameter of the second sleeve 7, and the nominal diameter of the second sleeve 7 is equal to the nominal diameters of the female-end quick connector 8 and the male-end quick connector 9.
As shown in fig. 2, when the spray gun 1 is slightly bent and deformed downward, i.e., the deformation angle is 0-10 °, the spray gun 1 is rotated by 180 °, the bent portion is rotated in the opposite direction (upward), and the bending is corrected by the deformation of the spray gun 1, so that the service life of the spray gun 1 is prolonged.
Like figure 3 ~ 4, when the great bending deformation takes place for spray gun 1, deformation angle 10 ~ 30 promptly, can not follow when extracting from first sleeve pipe 2, can dismantle bolt 4, utilize great clearance space between spray gun 1 and the first sleeve pipe 2, extract second flange 6, second sleeve pipe 7, pipeline vibrator 11, female end quick-operation joint 8, male end quick-operation joint 9, locating pin 10 and spray gun 1 are whole.
When the spray gun 1 needs to be checked, the handle of the female-end quick connector 8 is broken off, and the spray gun 1 is pulled out together with the male-end quick connector 9. The handle of the female end quick joint 8 is easy to damage, and when the female end quick joint 8 needs to be replaced, the thread between the female end quick joint 8 and the second sleeve 7 is unscrewed, and a new female end quick joint 8 is replaced.
When the spray gun 1 needs to be replaced by the same type spray gun 1, the positioning pin 10 is unscrewed, the old spray gun 1 is pulled out from the male end quick joint 9, the new spray gun 1 is inserted from the male end quick joint 9, and then the positioning pin 10 is screwed down.
When the spray gun 1 needs to be replaced by a spray gun 1 of different models and the outer diameter of the new spray gun 1 is smaller than or equal to the inner diameter of the second sleeve 7, the positioning pin 10 is unscrewed, the old spray gun 1 is pulled out of the male quick coupling 9, the new spray gun 1 is inserted from the male quick coupling 9, and then the positioning pin 10 is screwed down.
When the spray gun 1 needs to be replaced by spray guns 1 of different models, and the outer diameter of a new spray gun 1 is larger than the inner diameter of the second sleeve 7 and smaller than the inner diameter of the first sleeve 2, a new second flange 6, a new second sleeve 7, a new female end quick connector 8, a new male end quick connector 9, a new positioning pin 10 and a new pipeline vibrator 11 are manufactured or purchased again according to the outer diameter of the new spray gun 1, and the new second flange 6, the new second sleeve 7, the new female end quick connector 8, the new male end quick connector 9, the new positioning pin 10 and the new pipeline vibrator 11 are assembled and connected in sequence; the connecting bolts 4 of the first flange 3 and the old second flange 6 are disassembled, the second flange 6 which is newly assembled is fixed with the first flange 3 by the bolts 4, the new spray gun 1 is inserted from the new male end quick joint 9, and then the positioning pin 10 is screwed.
Example 2
The remaining connections of this example are the same as example 1, except that: the pipe vibrator 11 is fixed to the first casing 2.
Claims (10)
1. The utility model provides a spray gun sleeve pipe for denitration which characterized in that: including spray gun (1), first sleeve pipe (2), first flange (3), second flange (6), second sleeve pipe (7), cloudy end quick-operation joint (8), positive end quick-operation joint (9) and pipeline vibrator (11), spray gun (1) sets gradually first sleeve pipe (2), second sleeve pipe (7), cloudy end quick-operation joint (8) and positive end quick-operation joint (9) outward, set up first flange (3), second flange (6) between first sleeve pipe (2), second sleeve pipe (7), pipeline vibrator (11) set up the surface at first sleeve pipe (2) or second sleeve pipe (7), second sleeve pipe (7) link to each other with cloudy end quick-operation joint (8), cloudy end quick-operation joint (8) and positive end quick-operation joint (9) swing joint.
2. The lance sleeve for denitration according to claim 1, wherein: the second sleeve (7) is in threaded connection with the female-end quick connector (8).
3. The lance sleeve for denitration according to claim 1, wherein: a sealing gasket (5) is arranged between the first flange (3) and the second flange (6), and the first flange (3), the sealing gasket (5) and the second flange (6) are fixedly connected through bolts (4).
4. The lance sleeve for denitration according to claim 1, wherein: the inner diameter of the first sleeve (2) is larger than the outer diameter of the spray gun (1) by more than 40 mm.
5. The lance sleeve for denitration according to claim 4, wherein: the inner diameter of the first sleeve (2) is larger than that of the second sleeve (7).
6. The lance sleeve for denitration according to claim 5, wherein: and the nominal diameter of the second sleeve (7) is equal to the nominal diameters of the female-end quick connector (8) and the male-end quick connector (9).
7. The lance sleeve for denitration according to claim 1, wherein: the male end quick connector (9) is fixedly connected with the spray gun (1) through a positioning pin (10).
8. The lance sleeve for denitration according to claim 1, wherein: and a handle is arranged on the female-end quick joint (8).
9. The lance sleeve for denitration according to claim 1, wherein: the first sleeve (2) is welded to the outer wall (12) of the device.
10. The lance sleeve for denitration according to claim 1, wherein: the pipeline vibrator (11) is fixedly connected with the first sleeve (2) or the second sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122808616.XU CN216261587U (en) | 2021-11-16 | 2021-11-16 | Spray gun sleeve for denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122808616.XU CN216261587U (en) | 2021-11-16 | 2021-11-16 | Spray gun sleeve for denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216261587U true CN216261587U (en) | 2022-04-12 |
Family
ID=81008642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122808616.XU Active CN216261587U (en) | 2021-11-16 | 2021-11-16 | Spray gun sleeve for denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216261587U (en) |
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2021
- 2021-11-16 CN CN202122808616.XU patent/CN216261587U/en active Active
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