CN215951436U - Novel burn burning furnace overgrate air nozzle assembly - Google Patents
Novel burn burning furnace overgrate air nozzle assembly Download PDFInfo
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- CN215951436U CN215951436U CN202122329953.0U CN202122329953U CN215951436U CN 215951436 U CN215951436 U CN 215951436U CN 202122329953 U CN202122329953 U CN 202122329953U CN 215951436 U CN215951436 U CN 215951436U
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- expansion joint
- sleeve
- connecting piece
- secondary air
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Abstract
The utility model relates to a novel secondary air nozzle assembly of an incinerator, which comprises an induced duct communicated with an air duct; a nozzle leading to the furnace chamber in the furnace wall; an expansion joint connecting the induced draft tube and the nozzle; a nozzle sleeve is arranged on the periphery of the nozzle and detachably connected with the nozzle; the nozzle comprises a nozzle end and a connecting end, the nozzle end is communicated with the furnace chamber, the connecting end is connected with the expansion joint, and the expansion joint is detachably connected with the induced duct and the nozzle; this overgrate air nozzle assembly is connected through adopting the multistage and is realized convenient to detach's function, has made things convenient for the maintenance or the change of nozzle, realizes the high temperature protection to the nozzle through adopting the nozzle sleeve pipe, alleviates the device damage that ambient temperature changes and lead to through adopting the expansion joint, prolongs the life of nozzle.
Description
Technical Field
The utility model relates to a nozzle structure, in particular to a novel secondary air nozzle assembly of an incinerator.
Background
The incinerator is a harmless treatment device which is commonly used for harmless treatment of medical and domestic waste products and animals. The principle is that the objects to be treated are incinerated and carbonized at high temperature by utilizing the combustion of fuels such as coal, fuel oil, fuel gas and the like so as to achieve the aim of disinfection.
The waste incineration easily produces secondary pollution, and harmful gases such as NOx, SOx, dioxin and the like can be produced when the combustion is controlled improperly. In the actual operation of a waste incineration power plant, it is clearly specified that the flue gas must have an oxygen concentration of > 6%, a temperature of > 850 ℃ and a zone residence time of > 2 s. The structure and arrangement of the secondary air nozzle are related to the air flow organization in the furnace, and the secondary air nozzle plays a vital role in ensuring stable combustion in the furnace, burnout of garbage and control of pollutants.
The secondary air nozzle is easy to damage or block in a high-temperature smoke environment for a long time, so that the service life of the secondary air nozzle is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel secondary air nozzle of an incinerator, aiming at improving the flexibility of the secondary air nozzle, facilitating the replacement and maintenance of the secondary air nozzle and prolonging the service life of the secondary air nozzle. This overgrate air nozzle has made things convenient for the maintenance or the change of overgrate air nozzle through the subassembly realization convenient to detach that adopts the multistage to connect, realizes the high temperature protection to the nozzle through adopting nozzle sleeve pipe, alleviates the device damage that ambient temperature changes and lead to through adopting the expansion joint, prolongs the life of overgrate air nozzle.
The utility model adopts the following scheme:
a novel secondary air nozzle assembly of an incinerator comprises
An induced draft tube communicated with the air tube;
a nozzle leading to the furnace chamber in the furnace wall;
an expansion joint connecting the induced draft tube and the nozzle;
a nozzle sleeve is arranged on the periphery of the nozzle and detachably connected with the nozzle;
the nozzle comprises a nozzle end and a connecting end, the nozzle end is communicated with the furnace chamber, the connecting end is connected with the expansion joint, and the expansion joint is detachably connected with the induced duct and the nozzle;
one end of the nozzle sleeve is provided with a first connecting piece, and the nozzle sleeve is connected with the nozzle through the first connecting piece;
a second connecting piece and a third connecting piece are respectively arranged at two ends of the expansion joint, the second connecting piece is used for connecting the nozzle or the nozzle sleeve, and the third connecting piece is used for connecting the induced draft pipe;
a fourth connecting piece is arranged at the connecting end of the nozzle and is connected with the nozzle sleeve or the expansion joint; the expansion joint is detachably arranged between the nozzle and the induced draft tube, the nozzle can be freely detached, when the nozzle needs to be replaced or maintained, the expansion joint is detached, and then the nozzle is pulled out; the expansion joint arranged between the induced draft tube and the nozzle relieves the axial change of rigid parts such as the nozzle and the like caused by the change of the environmental temperature.
Furthermore, the one end that first connecting piece was kept away from to the nozzle sleeve pipe extend to with the contact of furnace wall surface or extend to inside the furnace wall, this setting has guaranteed the support protection of nozzle sleeve pipe to the nozzle, and the smooth extraction of nozzle of being convenient for simultaneously and stretch into in the furnace wall, after the nozzle sleeve pipe extends to in the furnace wall, has further strengthened its high temperature protection to the nozzle again.
Furthermore, the furnace wall is provided with a fixed block, the fixed block is fixed on the outer side of the furnace wall, the fixed block is provided with a through hole leading to the furnace chamber, the nozzle sleeve is arranged in the through hole, and the fixed block is arranged to support the nozzle sleeve and protect the corresponding environment to prevent environment erosion.
Furthermore, the furnace wall is a water-cooled wall, a plurality of spiral pipelines are arranged in the water-cooled wall, and cooling water flows in the pipelines. This setting can effectively reduce the furnace wall problem and the outside temperature of furnace wall, prevents the erosion of high temperature to the internal part of wall (including nozzle and nozzle sleeve), prevents simultaneously that high temperature from transmitting to induced duct and expansion joint.
Furthermore, asbestos gaskets are arranged at the joints of the induced draft pipe and the expansion joint, the expansion joint and the nozzle sleeve or the nozzle, and the connection tightness is effectively ensured, and meanwhile, the heat insulation effect is improved.
Furthermore, the thickness of asbestos gasket is 3mm, and this thickness has been synthesized and has been considered connection compactness and thermal-insulated effect, and through the test, when the asbestos gasket is this thickness, can satisfy the dual demand of connection compactness and thermal-insulated.
Furthermore, the nozzle end of the nozzle is provided with a plurality of spray holes, the spray holes are the same or different in shape, the spray holes are the same or different in aperture, the plurality of spray holes can be arranged in multiple air inlet directions, air inflow and air inlet directions can be effectively adjusted, and the air inflow and air inlet directions can be further flexibly adapted to requirements of the air inflow and the air inlet directions by arranging different apertures and spray hole shapes.
Furthermore, the induced air pipe, the expansion joint, the nozzle sleeve and the nozzle are connected through flanges, the inner cavities of the induced air pipe, the expansion joint, the nozzle sleeve and the nozzle are axially consistent, the arrangement can ensure simple and easy disassembly and assembly, the axial consistency is realized, and the erosion of flowing gas and high temperature to the assembly is effectively reduced.
The beneficial effects produced by the utility model comprise: according to the utility model, the expansion joint is detachably arranged between the nozzle and the induced draft tube, so that the nozzle can be freely detached, and when the nozzle needs to be replaced or maintained, the expansion joint is detached and then the nozzle is pulled out; the expansion joint arranged between the induced draft tube and the nozzle relieves the axial change of rigid parts such as the nozzle and the like caused by the change of the environmental temperature, and simultaneously, the service lives of the nozzle and the induced draft tube are further prolonged by matching with the water-cooled wall and the nozzle sleeve; the fixing block is arranged outside the furnace wall, and then the sleeve is arranged through the fixing block to provide support for the sleeve, so that the stability of the sleeve is improved, and a longer sleeve can be designed; all set up to the flange form between first connecting piece, second connecting piece, third connecting piece and the fourth connecting piece, convenient to detach, and set up the asbestos gasket that heat-proof used between each flange, prevent high temperature deformation.
Drawings
FIG. 1 is a view showing the structure of a furnace wall and a secondary air nozzle assembly according to the present invention;
FIG. 2 is a detailed view of the secondary air nozzle assembly of the present invention;
in the figure, 1, a nozzle, 101, a nozzle end, 102, a connecting end, 2, a nozzle sleeve, 3, an expansion joint, 4, an induced draft pipe, 5, an air pipe, 6, a support, 7, a furnace wall, 8, a fixing block, 9, a first flange, 10, a second flange, 11, a third flange, 12, a fourth flange, 13 and a fifth flange.
Detailed Description
The present invention is explained in detail below with reference to specific examples, but it should not be construed that the scope of the present invention is limited by the specific examples.
As shown in fig. 1-2, the novel secondary air nozzle assembly of the incinerator comprises an air guiding pipe 4, a nozzle 1, a nozzle sleeve 2 and an expansion joint 3, wherein the air guiding pipe 4 is communicated with an air pipe 5, air or other combustion gas is introduced through the air pipe 5, the air pipe 5 is arranged on a support 6, the support 6 can be fixed on a furnace wall 7 or other fixing parts, the nozzle 1 is communicated with the air guiding pipe 4 through the expansion joint 3, the nozzle 1 leads to the nozzle 1 of the furnace chamber in the furnace wall 7, and the furnace chamber is surrounded by the furnace wall and is used for guiding out flue gas; a nozzle sleeve 2 is arranged on the periphery of the nozzle 1, and the nozzle sleeve 2 is detachably connected with the nozzle 1; when the nozzle 1 needs to be replaced or maintained, the expansion joint 3 is detached, and the nozzle 1 is pulled out.
The nozzle 1 comprises a nozzle end 101 and a connecting end 102, the nozzle end 101 is opened to the furnace chamber, the connecting end 102 is connected with the expansion joint 3, and the expansion joint 3 is detachably connected with the induced duct 4 and the nozzle 1. The nozzle 1 and the nozzle sleeve 2 can be connected by a connecting piece at the end, and after the connecting piece is removed, the nozzle 1 and the nozzle sleeve 2 can be separated.
One end of the nozzle sleeve 2 extends to the outer surface of the furnace wall 7 or extends to the interior of the furnace wall 7, one end far away from the furnace wall 7 is provided with a first connecting piece, and the first connecting piece is connected with the nozzle 1. The furnace wall 7 is provided with a fixing block 8, the fixing block 8 is fixed on the outer side of the furnace wall 7, the fixing block 8 is provided with a through hole leading to a furnace chamber, and the nozzle sleeve 2 is arranged in the through hole. Then, the nozzle sleeve 2 is arranged through the fixing block 8, so that support is provided for the nozzle sleeve 2, the stability of the nozzle sleeve 2 is improved, and the long nozzle sleeve 2 can be designed to increase the protection area of the nozzle 1.
The furnace wall 7 can be designed into a water-cooled wall, a plurality of spiral pipelines are arranged in the water-cooled wall, and cooling water flows in the pipelines. The water-cooled wall effectively reduces the temperature of the wall body, and the service life of the nozzle 1 and the induced draft tube 4 is further prolonged by matching with the nozzle sleeve 2.
As an embodiment, two ends of the expansion joint 3 are respectively provided with a second connecting piece and a third connecting piece, the second connecting piece is used for connecting the nozzle 1 or the nozzle sleeve 2, the third connecting piece is used for connecting the induced duct 4, and a fifth connecting piece is arranged on the corresponding induced duct 4 and correspondingly connected with the third connecting piece. The connection end 102 of the nozzle 1 is provided with a fourth connection piece, which is connected to the nozzle sleeve 2 or the expansion joint 3. The first connecting piece, the second connecting piece, the third connecting piece, the fourth connecting piece and the fifth connecting piece are respectively and correspondingly arranged into a first flange 9, a second flange 10, a third flange 11, a fourth flange 12 and a fifth flange 13. Asbestos gaskets are arranged at the connecting flange between the induced draft pipe 4 and the expansion joint 3 and at the connecting flange between the expansion joint 3 and the nozzle sleeve 2 or the nozzle 1. After the fourth flange 12 arranged at the connection end 102 of the nozzle 1 is connected with the first flange 9 of the nozzle sleeve 2, the fourth flange 12 or the first flange 9 is further connected with the second flange 10 of the expansion joint 3. The inner cavities of the induced air pipe 4, the expansion joint 3, the nozzle sleeve 2 and the nozzle 1 are all in axial consistency, namely the induced air pipe 4, the expansion joint 3 and the nozzle 1 are communicated and coaxial, in the embodiment, asbestos gaskets are arranged at the connecting flanges, and the thickness of the asbestos gaskets is 3mm in order to coordinate the connection tightness between the flanges and the heat insulation requirement.
The nozzle end 101 of the nozzle 1 of the utility model is provided with a plurality of spray holes, the shapes of the spray holes are the same or different, and the apertures of the spray holes are the same or different. Specifically, the shape of the spray hole on the nozzle 1 is a circular hole, a square hole, an elliptical hole, a polygonal hole or an irregular hole, and the aperture of the spray hole is gradually increased from the edge of the nozzle 1 to the center. The shape of the nozzle 1 may also be such that only one hole is provided, which is shaped as a trumpet, so that the wind is emitted in a diffuse manner.
According to the utility model, the expansion joint 3 is detachably arranged between the nozzle 1 and the induced draft tube 4, the nozzle 1 can be detached by itself, when the nozzle 1 needs to be replaced or maintained, the expansion joint 3 is detached, and then the nozzle 1 is pulled out; the expansion joint 3 between the induced draft tube 4 and the nozzle 1 relieves the axial change of rigid parts such as the nozzle 1 and the like caused by the change of the environmental temperature, and is matched with the water-cooled wall and the nozzle sleeve 2, so that the service lives of the nozzle 1 and the induced draft tube 4 are further prolonged; a fixing block 8 is arranged outside the furnace wall 7, and then the nozzle sleeve 2 is arranged through the fixing block 8 to provide support for the nozzle sleeve 2, so that the stability of the nozzle sleeve 2 is improved, and the longer nozzle sleeve 2 can be designed; all set up to the flange form between first connecting piece, second connecting piece, third connecting piece and the fourth connecting piece, convenient to detach, and set up the asbestos gasket that heat-proof used between each flange, prevent high temperature deformation.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.
Claims (8)
1. The utility model provides a novel burn burning furnace overgrate air nozzle assembly which characterized in that: comprises that
An induced draft pipe (4) communicated with the air pipe;
a nozzle (1) leading to the furnace chamber in the furnace wall (7);
an expansion joint (3) connecting the induced draft tube (4) and the nozzle (1);
a nozzle sleeve (2) is arranged on the periphery of the nozzle (1), and the nozzle sleeve (2) is detachably connected with the nozzle (1);
the nozzle (1) comprises a nozzle end (101) and a connecting end (102), the nozzle end (101) is opened to the furnace chamber, the connecting end (102) is connected with the expansion joint (3), and the expansion joint (3) is detachably connected with the induced draft pipe (4) and the nozzle (1);
one end of the nozzle sleeve (2) is provided with a first connecting piece, and the nozzle sleeve (2) is connected with the nozzle (1) through the first connecting piece;
a second connecting piece and a third connecting piece are respectively arranged at two ends of the expansion joint (3), the second connecting piece is used for connecting the nozzle (1) or the nozzle sleeve (2), and the third connecting piece is used for connecting the induced draft pipe (4);
the connecting end (102) of the nozzle (1) is provided with a fourth connecting piece, and the fourth connecting piece is connected with the nozzle sleeve (2) or the expansion joint (3).
2. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: one end of the nozzle sleeve (2) far away from the first connecting piece extends to be in contact with the outer surface of the furnace wall (7) or extend to the interior of the furnace wall (7).
3. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: the furnace wall (7) is provided with a fixing block (8), the fixing block (8) is fixed on the outer side of the furnace wall (7), the fixing block (8) is provided with a through hole leading to the furnace chamber, and the nozzle sleeve (2) is arranged in the through hole.
4. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: the furnace wall (7) is a water-cooled wall, a plurality of spiral pipelines are arranged in the water-cooled wall, and cooling water flows in the pipelines.
5. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: asbestos gaskets are arranged at the joints of the induced draft pipe (4) and the expansion joint (3) and the joints of the expansion joint (3) and the nozzle sleeve (2) or the nozzle (1).
6. The novel incinerator secondary air nozzle assembly as claimed in claim 5, wherein: the thickness of the asbestos gasket is 3 mm.
7. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: the nozzle end (101) of the nozzle (1) is provided with a plurality of spray holes, the shapes of the spray holes are the same or different, and the apertures of the spray holes are the same or different.
8. The novel incinerator secondary air nozzle assembly as claimed in claim 1, wherein: the induced air pipe (4), the expansion joint (3), the nozzle sleeve (2) and the nozzle (1) are connected through flanges, and inner cavities of the induced air pipe (4), the expansion joint (3), the nozzle sleeve (2) and the nozzle (1) are axially consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329953.0U CN215951436U (en) | 2021-09-26 | 2021-09-26 | Novel burn burning furnace overgrate air nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329953.0U CN215951436U (en) | 2021-09-26 | 2021-09-26 | Novel burn burning furnace overgrate air nozzle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215951436U true CN215951436U (en) | 2022-03-04 |
Family
ID=80427926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122329953.0U Active CN215951436U (en) | 2021-09-26 | 2021-09-26 | Novel burn burning furnace overgrate air nozzle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215951436U (en) |
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2021
- 2021-09-26 CN CN202122329953.0U patent/CN215951436U/en active Active
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