CN212575993U - Combined spray gun protective sleeve - Google Patents
Combined spray gun protective sleeve Download PDFInfo
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- CN212575993U CN212575993U CN202020868653.2U CN202020868653U CN212575993U CN 212575993 U CN212575993 U CN 212575993U CN 202020868653 U CN202020868653 U CN 202020868653U CN 212575993 U CN212575993 U CN 212575993U
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- spray gun
- boiler
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- sleeve
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Abstract
The utility model relates to a combined spray gun protective sleeve, which comprises a spray gun main body, wherein a connecting flange is arranged on the outer side wall of the spray gun main body, the connecting flange is bolted on the outer side wall of a boiler wall body, one side of the spray gun main body, which is positioned at a flange and close to the boiler, penetrates through the boiler wall body and extends into the boiler, and a spray gun protective assembly is arranged in the boiler; spray gun protection component establishes including the cover and is located the protective sleeve of the inside lateral wall of boiler and sets up the mounting flange in protective sleeve one end at the spray gun main part, and mounting flange bolted connection is on the inside wall of boiler wall body, and protective sleeve and the coaxial setting of spray gun main part. The utility model discloses have and to dismantle between protective sleeve and the spray gun main part and be connected, protective sleeve and spray gun main part can be convenient recycle's priority, can effectively reduce use cost, improved economic benefits.
Description
Technical Field
The utility model belongs to the technical field of the technique of denitration spray gun and specifically relates to a modular spray gun protective sheath is related to.
Background
A spray gun is a device that uses a quick release of liquid or compressed air as a motive force. The end part of the pin removal spray gun is additionally provided with an atomizing nozzle, liquid fuel and air enter the denitration spray gun together, and liquid mist with a small diameter is formed through mixing and atomizing and is sprayed out from the nozzle at a high speed, so that the contact area of the liquid fuel and surrounding media is increased, and the purpose of rapid mixing reaction is achieved.
The denitration spray gun is one of spray guns and mainly applied to a flue gas treatment process after waste incineration. When the denitration spray gun is used, the denitration spray gun is arranged on a boiler wall body for waste incineration, the denitration spray gun penetrates through the boiler wall body and extends into the boiler, and the flue gas treatment process is carried out in the boiler constantly, so that the high temperature state is always maintained in the boiler, and the high temperature can reach over 900 ℃; and the flue gas generated by the incinerated garbage also has the characteristics of high dust content and strong corrosivity. Therefore, the end of the denitration spray gun extending into the boiler is damaged by high-temperature and high-corrosion at any time, so that the denitration spray gun is required to have strong corrosion resistance and high-temperature resistance.
The traditional Chinese utility model patent with the publication number of CN204034935U discloses a high-temperature-resistant denitration spray gun device, which comprises an outer protection pipe, an inner protection pipe, a spray gun main body and a welding support, wherein the welding support is welded and fixed on the outer surface of the wall of an industrial furnace, the tops of the hot ends of the inner protection pipe and the outer protection pipe are sealed by welding, high-temperature-resistant paint is uniformly coated on the outer surface of the inner protection pipe, the protection pipe is inserted into the welding support, and the protection pipe is positioned by welding a concave step structure of a support flange; the spray gun main body is inserted into the inner protective pipe, the spray gun main body flange is attached to the welding support flange, and the spray gun main body and the welding support are fixedly connected through a fastener. Because the spray gun of deNOx systems arranges in high temperature environment, and dust pollution is more serious, for adapting to this kind of operating mode, sets up inside and outside pillar bilayer structure outside the spray gun main part. The inner protecting pipe is coated with high-temperature-resistant coating, and the cavity part between the inner protecting pipe and the outer protecting pipe is provided with high-temperature-resistant cotton to protect the spray gun main body. The utility model discloses a device safe and reliable, installation are simple and easy, maintain convenient, high temperature resistance can the excellence.
The above prior art solutions have the following drawbacks: the tops of the hot ends of the inner protection pipe and the outer protection pipe are sealed by welding, and cannot be detached and replaced, and when the denitration spray gun reaches the service life, the denitration spray gun needs to be replaced, and in this case, the inner protection pipe and the outer protection pipe can only be scrapped together with the denitration spray gun, cannot be recycled, and the use cost is increased; if the material with more excellent performance is adopted, the production cost is increased, and the enterprise benefit is reduced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a modular spray gun protective sheath, demountable combination installs between its spray gun main part and the protective sleeve for protective sleeve recycle has reduced economic cost, has improved economic benefits.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a combined spray gun protective sleeve comprises a spray gun main body, wherein a connecting flange is coaxially arranged on the outer side wall of the spray gun main body, the connecting flange is connected to the outer side wall of a boiler wall body through a bolt, one end, close to the boiler, of the spray gun main body, which is located on the connecting flange, penetrates through the boiler wall body and extends into the boiler, and a protective assembly is arranged on the outer side wall, located inside the boiler, of the spray gun main body; the protection subassembly establishes the protective case and sets up the mounting flange who is close to boiler wall body one end at the protective case at spray gun main part lateral wall including the cover, mounting flange bolted connection is on boiler wall body's inside wall, protective case and the coaxial setting of spray gun main part.
Through adopting above-mentioned technical scheme, spray gun main part and protective sleeve are two relatively independent subassemblies before not installing, form between the two when the installation and can dismantle the connection, appear damaging when any one of protective sleeve or spray gun main part needs to be changed, can select to change spray gun main part or protective sleeve arbitrary as the circumstances, retrieve reuse with the better one of operating mode to the very big use cost that has saved has improved economic benefits.
The present invention may be further configured in a preferred embodiment as: the protection sleeve is located one side of the fixed flange facing the boiler wall body and is coaxially provided with an extension sleeve, and the extension sleeve is integrally connected with the protection sleeve.
Through adopting above-mentioned technical scheme, extend the cover and stretch into the inside root of boiler also to the spray gun main part and have better guard action, avoid the high temperature flue gas in the boiler to see through flange joint's clearance and cause the corruption to the spray gun main part, improved protective case's guard action, improve protective case and spray gun main part's life, reduce the change frequency to reduce use cost, improve economic benefits.
The present invention may be further configured in a preferred embodiment as: and the outer side walls of the protective sleeve and the extension sleeve are provided with high-temperature resistant coatings.
Through adopting above-mentioned technical scheme, high temperature resistant coating forms better guard action to protective sleeve and extension cover on the one hand, avoids the particulate matter direct contact protective sleeve in the flue gas, has improved protective sleeve's life, and on the other hand high temperature resistant coating has better temperature effect that separates, the effectual temperature that reduces the main part that sprays paint, and then has effectively improved the life of spray gun main part, has reduced use cost.
The present invention may be further configured in a preferred embodiment as: extend between cover and the spray gun main part lateral wall and all leave the cooling gap between protective sleeve and the spray gun main part lateral wall, horizontal through connection flange is provided with vent and air outlet, vent and air outlet all communicate with the cooling gap.
Through adopting above-mentioned technical scheme, when carrying out high temperature reaction in the boiler, constantly pour into the cooling air into to the vent, hot-blast process air outlet discharge after the circulation, the cooling air forms the circulation in the cooling gap, and then all has certain cooling guard action to extending cover, protective sleeve and spray gun main part, and then has avoided extending the damage speed of cover and protective sleeve, has prolonged the life who extends cover and protective sleeve, carries and has reduced use cost.
The present invention may be further configured in a preferred embodiment as: the end part of the spray gun main body, which is positioned in the boiler, is provided with a ceramic inner sleeve, and the ceramic inner sleeve is coaxially sleeved at the end part of the spray gun main body.
Through adopting above-mentioned technical scheme, the spray gun main part is located the inside tip of boiler and is the position at nozzle place, and the damage that the nozzle received is relatively more serious, and general nozzle also is the part that damages at first, and the ceramic endotheca has played further guard action to the nozzle, avoids the too fast damage of nozzle, has improved the life of nozzle, has improved economic benefits.
The present invention may be further configured in a preferred embodiment as: the inner side wall of the ceramic inner sleeve is provided with internal threads, the outer side wall of the end part of the spray gun main body, which is positioned in the boiler, is provided with external threads, and the ceramic inner sleeve is in threaded connection with the spray gun main body.
Through adopting above-mentioned technical scheme, form between ceramic endotheca and the spray gun main part and can dismantle the connection, and then make at any time change according to the circumstances between ceramic endotheca and the nozzle, make things convenient for recycle, reduced use cost, improved economic benefits.
The present invention may be further configured in a preferred embodiment as: and one end of the ceramic inner sleeve, which is far away from the boiler wall body, is provided with a protection end.
Through adopting above-mentioned technical scheme, the protection end further protects the position of nozzle, has avoided high temperature flue gas and wherein high temperature granule directly to cause the destruction to the nozzle, and then has further slowed down the damage rate of nozzle, has reduced the change frequency of nozzle, and then has reduced use cost.
The present invention may be further configured in a preferred embodiment as: and one side of the fixed flange, which is far away from the boiler wall body, is provided with a protection plate for protecting the fixed flange.
Through adopting above-mentioned technical scheme, the guard plate has better guard action to mounting flange on the one hand, has avoided mounting flange's quick damage, has improved mounting flange's life, and on the other hand guard plate has increased and protective sleeve between area of contact for mounting flange's fixed action is more obvious, avoids protective sleeve's the condition such as bending to take place.
The present invention may be further configured in a preferred embodiment as: and reinforcing bolts are arranged through the fixing flange, the boiler wall body and the connecting flange, and the fixing flange, the boiler wall body and the connecting flange are connected through the reinforcing bolts.
Through adopting above-mentioned technical scheme, reinforcing bolt is with fixed connection between flange and mounting flange and the boiler wall body, has further improved the firm connection effect of flange and mounting flange, slows down the tremor effect that carries out high-speed injection and cause in the spray gun main part, avoids protective sleeve's the damage of bending, improves protective sleeve's life, and then has reduced protective sleeve's change, has improved economic benefits.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the spray gun main body and the protective sleeve are arranged into two independent bodies and are detachably connected with each other, so that the spray gun main body or the protective sleeve can be detached and separated according to conditions, and the intact part can be recycled, so that the use cost is reduced, and the economic benefit is improved;
2. through the arrangement of the cooling gap, the cooling air and the high-temperature-resistant coating, the outer side wall of the spray gun is effectively cooled, so that the spray gun main body has a better temperature environment when in work, the damage of the spray gun main body is further slowed down, the service life of the spray gun main body is greatly prolonged, the replacement frequency is reduced, the use cost is further reduced, and the economic benefit is improved;
3. through set up ceramic endotheca and protection end at the lateral wall of nozzle, further form better guard action to the nozzle, slow down and receive great damage with the nozzle of flue gas direct contact department, improved the life of nozzle.
Drawings
FIG. 1 is a schematic view of the overall construction of a spray gun;
FIG. 2 is a cross-sectional view of the lance as installed in a boiler wall;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
In the figure, 1, a spray gun body; 2. a connecting flange; 3. a protection component; 31. a protective sleeve; 32. a fixed flange; 4. an extension sleeve; 5. cooling the gap; 6. a vent; 7. an air outlet; 8. a ceramic inner sleeve; 9. a protection end; 10. a protection plate; 11. a gas-liquid mixing section; 12. a liquid inlet pipe; 13. an air inlet pipe; 14. and reinforcing the bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a modular spray gun protective sheath, establish cylindric spray gun main part 1 of cavity in including, the welding has cylindric gas-liquid mixture portion 11 in spray gun main part 1's one end, and the diameter of gas-liquid mixture portion 11 is greater than the diameter of spray gun main part 1, and the tip intercommunication that spray gun main part 1 was kept away from to gas-liquid mixture portion 11 has feed liquor pipe 12, link up on gas-liquid mixture portion 11's the lateral wall and be equipped with intake pipe 13. The gas and the liquid are sufficiently mixed in the gas-liquid mixing portion 11 and then injected through the torch body 1.
Referring to fig. 1 and 2, an organic whole is provided with flange 2 on the lateral wall of spray gun main part 1, and flange 2 passes through bolt fixed connection on the boiler wall lateral wall, specifically is flange 2 through the lateral wall fixed connection of four bolts with the boiler wall, and spray gun main part 1 is located flange 2 and keeps away from 11 one end of gas-liquid mixture portion and runs through the boiler wall and extend.
Referring to fig. 1 and 2, be provided with protection component 3 on the inside wall of boiler wall, protection component 3 includes coaxial and the cover of spray gun main part 1 and establishes protective sleeve 31 and the fixed flange 32 of an organic whole connection at protective sleeve 31 near boiler wall tip that spray gun main part 1 is located the inside lateral wall of boiler, pass through bolt fixed connection between fixed flange 32 and the boiler wall, specifically be fixed flange 32 through four bolts and the lateral wall fixed connection of boiler wall, the angle between the line of two adjacent bolt central points and fixed flange 32 central points is 90 degrees.
Referring to fig. 2 and 3, an extension sleeve 4 is coaxially and integrally connected to one side of the protection sleeve 31, which is located on the fixing flange 32 and faces the boiler wall, the extension sleeve 4 is coaxially sleeved on the outer side wall of the spray gun body 1, a cooling gap 5 is reserved between the extension sleeve 4 and the outer side wall of the spray gun body 1 and between the protection sleeve 31 and the outer side wall of the spray gun body 1, a vent 6 and an air outlet 7 horizontally penetrate through the connection flange 2, the vent 6 and the air outlet 7 are both communicated with the cooling gap 5, the vent 6 is connected with ventilation equipment for supplying cooling air, and the ventilation equipment can be an air blower. When the spray gun works, the air blower is used for continuously injecting low-temperature air into the air vent 6, the low-temperature air circularly flows in the cooling gap 5 and is finally discharged from the air outlet 7, so that a large amount of heat is discharged, a good cooling effect is achieved on the spray gun body 1 and the protective sleeve 31, and the service lives of the spray gun body 1 and the protective sleeve 31 are prolonged. In order to improve the protection effect and the service life of the protection sleeve 31 and the extension sleeve 4, the outer side walls of the protection sleeve 31 and the extension sleeve 4 are provided with high temperature resistant coatings, specifically, high temperature resistant ceramic materials.
Referring to fig. 2, the outer side wall of the end part of the spray gun main body 1 located inside the boiler is provided with an external thread, a ceramic inner sleeve 8 is arranged on the external thread in a spiral sleeve manner, and the ceramic inner sleeve 8 is coaxially sleeved on the end part of the spray gun main body 1. One end of the ceramic inner sleeve 8, which is far away from the boiler wall, is provided with a protection end 9, the protection end 9 is specifically a concave part arranged in one end face of the ceramic inner sleeve 8, which is far away from the boiler wall, and the bottom end of the protection end 9 is integrally connected with a nozzle of the spray gun main body 1. The ceramic inner sleeve 8 and the protection end 9 play a further protection role for the nozzle.
Referring to fig. 2, one side of the boiler wall body away from the fixing flange 32 is provided with a protection plate 10, the protection plate 10 is arranged in a circular truncated cone shape, the diameter of the protection plate 10, which faces the bottom end of the boiler wall body, is larger than the diameter of the fixing flange 32, the bottom end of the protection plate 10 is tightly attached to the boiler wall body, and the protection plate 10 is fixedly connected with the fixing flange 32 through bolts.
Referring to fig. 2, the fixing flange 32, the boiler wall, and the coupling flange 2 are simultaneously penetrated by the reinforcing bolts 14, and the three are coupled by the reinforcing bolts 14.
The implementation principle of the embodiment is as follows:
firstly, mounting the protection component 3 in the boiler, namely fixedly connecting the fixed flange 32 and the protection plate 10 on the inner side wall of the boiler wall through bolts;
secondly, connecting the ceramic inner sleeve 8 to the end part of the spray gun main body 1 by bolts outside the boiler, inserting the spray gun main body 1 into the boiler through a through hole reserved in advance in the boiler wall body, sleeving the part of the spray gun main body 1 in the boiler by the protective sleeve 31, and then connecting the connecting flange 2 to the outer side wall of the boiler wall body by bolts;
in the third step, the connecting flange 2, the boiler wall and the fixing flange 32 are connected by the reinforcing bolts 14.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a modular spray gun protective sheath, includes spray gun main part (1), its characterized in that: the outer side wall of the spray gun main body (1) is coaxially provided with a connecting flange (2), the connecting flange (2) is connected to the outer side wall of a boiler wall body through bolts, one end, close to the boiler, of the connecting flange (2) of the spray gun main body (1) penetrates through the boiler wall body and extends into the boiler, and a protection assembly (3) is arranged on the outer side wall, located inside the boiler, of the spray gun main body (1);
protection subassembly (3) are including establishing protective sleeve (31) and the mounting flange (32) that sets up in protective sleeve (31) and be close to boiler wall body one end at spray gun main part (1) lateral wall, mounting flange (32) bolted connection is on boiler wall body's inside wall, protective sleeve (31) and the coaxial setting of spray gun main part (1).
2. The modular spray gun protective cover according to claim 1, wherein: one side, located at the fixed flange (32), of the protective sleeve (31) and facing the boiler wall body is coaxially provided with an extension sleeve (4), and the extension sleeve (4) is integrally connected with the protective sleeve (31).
3. The modular spray gun protective cover according to claim 2, wherein: and the outer side walls of the protective sleeve (31) and the extension sleeve (4) are provided with high-temperature resistant coatings.
4. The modular spray gun protective cover according to claim 3, wherein: extend between cover (4) and spray gun main part (1) lateral wall and all leave cooling gap (5) between protective sleeve (31) and spray gun main part (1) lateral wall, level run-through flange (2) are provided with vent (6) and air outlet (7), vent (6) and air outlet (7) all communicate with cooling gap (5).
5. The modular spray gun protective cover according to claim 1, wherein: the end part of the spray gun main body (1) positioned in the boiler is provided with a ceramic inner sleeve (8), and the ceramic inner sleeve (8) is coaxially sleeved at the end part of the spray gun main body (1).
6. The modular spray gun protective cover according to claim 5, wherein: the inner side wall of the ceramic inner sleeve (8) is provided with internal threads, the outer side wall of the end part of the spray gun main body (1) located inside the boiler is provided with external threads, and the ceramic inner sleeve (8) is spirally sleeved on the spray gun main body (1).
7. The modular spray gun protective cover according to claim 6, wherein: and one end of the ceramic inner sleeve (8) far away from the boiler wall body is provided with a protection end (9).
8. The modular spray gun protective cover according to claim 1, wherein: and a protection plate (10) for protecting the fixing flange (32) is arranged on one side surface, away from the boiler wall body, of the fixing flange (32).
9. The modular spray gun protective cover according to claim 1, wherein: and reinforcing bolts (14) are arranged to penetrate through the fixing flange (32), the boiler wall and the connecting flange (2), and the fixing flange (32), the boiler wall and the connecting flange (2) are connected through the reinforcing bolts (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868653.2U CN212575993U (en) | 2020-05-21 | 2020-05-21 | Combined spray gun protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868653.2U CN212575993U (en) | 2020-05-21 | 2020-05-21 | Combined spray gun protective sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212575993U true CN212575993U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020868653.2U Active CN212575993U (en) | 2020-05-21 | 2020-05-21 | Combined spray gun protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212575993U (en) |
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2020
- 2020-05-21 CN CN202020868653.2U patent/CN212575993U/en active Active
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