CN219014302U - Injection pipe and burner - Google Patents
Injection pipe and burner Download PDFInfo
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- CN219014302U CN219014302U CN202320025069.4U CN202320025069U CN219014302U CN 219014302 U CN219014302 U CN 219014302U CN 202320025069 U CN202320025069 U CN 202320025069U CN 219014302 U CN219014302 U CN 219014302U
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- bellying
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model provides a blowing pipe and a burner. The burner of the present utility model comprises: a housing having an air plenum; the precombustion cylinder is provided with a precombustion chamber, at least part of the precombustion cylinder stretches into the shell and is communicated with the air chamber; the blowing pipe, the blowing pipe includes body and bellying, and the body is established on the casing, and the blowing mouth is injectd to the first end of body, and the blowing mouth of body passes the plenum and stretches into in the precombustion chamber, and the bellying is established on the first end of body, and the bellying extends along the circumference of blowing mouth, and the bellying is protruding to the direction of keeping away from first end in the axial of body, and the upper portion of bellying reduces from last to lower in the axial of body size. Therefore, the burner provided by the utility model has the advantages that the wind body coming out of the injection port of the pipe body is convenient to position accurately, so that unburned coal dust and coal cinder particles which are deposited at the bottom of the precombustion chamber can be blown out in time.
Description
Technical Field
The utility model relates to the technical field of boiler combustion equipment, in particular to a blowing pipe and a burner.
Background
The pre-combustion chamber injection of the boiler burner is a prevention means adopted for preventing the pre-combustion chamber from coking, and the bottom of the pre-combustion chamber is injected once every two minutes, so that unburned coal dust and cinder particles which are deposited on the bottom are timely blown out, and the coking is prevented from being burnt for a long time under the action of high temperature. In the related art, the injection direction of the injection pipe is positioned inaccurately, the injection angle is unreasonable, and unburned coal dust and cinder particles which are deposited at the bottom are difficult to blow out in time.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present utility model provide a lance and a burner.
The burner of the embodiment of the utility model comprises:
a housing having an air plenum;
a precombustion barrel having a precombustion chamber, at least a portion of the precombustion barrel extending into the housing and the precombustion chamber in communication with the plenum;
the blowing pipe, the blowing pipe includes body and bellying, the body is established on the casing, the blowing mouth is injectd to the first end of body, the body the blowing mouth passes the plenum and stretch into in the prechamber, the bellying is established the body on the first end, the bellying is followed the circumference extension of blowing mouth, the bellying is in the axial direction of body is kept away from the direction protrusion of first end, the upper portion of bellying is in the axial of body reduces from last to lower.
Therefore, the burner provided by the embodiment of the utility model has the advantages that the wind body coming out of the injection port of the pipe body is positioned accurately, so that unburned coal dust and coal cinder particles which are deposited at the bottom of the precombustion chamber can be blown out in time.
In some embodiments, the boss decreases in size in the axial direction of the tube body from top to bottom.
In some embodiments, the boss decreases in size from top to bottom and then increases in size in the axial direction of the tube body.
In some embodiments, the plenum and the prechamber are disposed sequentially in a first direction;
on a cross section perpendicular to a second direction, a projection of the upper part of the protruding part is a first edge on one side, far away from the pipe body, in the axial direction of the pipe body, a projection of the lower part of the protruding part is a second edge on one side, far away from the pipe body, in the axial direction of the pipe body, the lower end of the first edge is connected with the upper end of the second edge, and any two of the first direction, the second direction and the up-down direction are perpendicular to each other;
the first edge and the second edge are arc-shaped, and form an inwards concave arc-shaped groove;
or the first edge and the second edge are straight edges, and the first edge and the second edge form an included angle.
In some embodiments, the first edge and the second edge are both straight edges, and an included angle between the first edge and the second edge and an axial direction of the pipe body is greater than or equal to 30 ° and less than or equal to 60 °.
In some embodiments, the first edge is perpendicular to the second edge.
In some embodiments, a first portion of the tube is located within the prechamber, the first end is located on the first portion, the first portion extends in a direction that intersects the first direction, and the first portion is disposed obliquely downward in the first direction in a direction away from the plenum.
In some embodiments, the boss is removably disposed on the mouthpiece of the tube;
or, the protruding part and the pipe body are integrally formed.
In some embodiments, the boss is annular and defines a blowing chamber having an inner diameter that increases in an axial direction of the blowing tube in a direction away from the blowing tube.
The utility model also provides the injection pipe, which is the injection pipe.
Drawings
FIG. 1 is a schematic view of a burner according to an embodiment of the present utility model.
Fig. 2 is a schematic view of a first embodiment of a lance according to the present utility model.
Fig. 3 is a schematic view of a second embodiment of a lance according to the present utility model.
Fig. 4 is a schematic view of a third embodiment of a lance according to the present utility model.
Fig. 5 is a schematic view of a fourth embodiment of a lance according to the present utility model.
Fig. 6 is a schematic view of a fifth embodiment of a lance according to the utility model.
Reference numerals:
a burner 100;
a housing 1, a plenum 11;
a precombustion cylinder 2, precombustion chamber 21;
the blowing pipe 3, the pipe body 31, the first end 311, the first portion 312, the boss 32, the first edge 321, the second edge 322, and the blowing chamber 33.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
A burner 100 according to an embodiment of the present utility model is described below with reference to the accompanying drawings. As shown in fig. 1 to 6, a burner 100 according to an embodiment of the present utility model includes a housing 1, a pre-combustion cylinder 2, and a blowing pipe 3.
The housing 1 has a plenum 11. The prechamber 2 has a prechamber 21, at least part of the prechamber 2 extending into the housing 1 and the prechamber 21 communicating with the plenum 11.
The blowing pipe 3 includes a pipe body 31 and a boss 32. The tube 31 is arranged on the housing 1, and the first end 311 of the tube 31 defines a nozzle, the nozzle of the tube 31 passing through the plenum 11 and extending into the prechamber 21. The boss 32 is provided on the first end 311 of the pipe body 31, the boss 32 extends in the circumferential direction of the mouthpiece, the boss 32 projects in a direction away from the first end 311 in the axial direction of the pipe body 31, and the upper portion of the boss 32 decreases in size from top to bottom in the axial direction of the pipe body 31.
The burner 100 according to the embodiment of the present utility model is configured such that the boss 32 is provided on the first end portion defining the injection port, the boss 32 extends in the circumferential direction of the injection port, and the boss 32 protrudes in the axial direction of the tube body 31 in a direction away from the first end portion 311. Thus, the protrusion 32 can guide the air coming out of the blowing port of the pipe body 31 so that the air is guided and restrained by the protrusion 32 after coming out of the blowing port of the pipe body 31.
The dimension of the upper portion of the protruding portion 32 in the axial direction of the pipe body 31 is reduced from top to bottom, that is, the guiding (limiting) length of the upper portion of the protruding portion 32 to the air body is increased from bottom to top, so that the air body from the upper portion of the protruding portion 32 is not easy to diffuse upwards, the air body from the blowing opening of the pipe body 31 (horizontally arranged or obliquely arranged downwards) is easy to blow downwards, and the air body from the blowing opening of the pipe body 31 is accurately positioned and easy to blow downwards, so that unburned coal dust and coal cinder particles sinking in the bottom of the pre-combustion chamber 21 are timely blown out.
Therefore, the burner 100 according to the embodiment of the present utility model has an advantage of facilitating accurate positioning of the wind body from the injection port of the tube body 31 so as to timely blow out unburned pulverized coal and cinder particles that settle to the bottom of the pre-combustion chamber 21.
The burner 100 according to the embodiment of the present utility model will be specifically described below in conjunction with the lance 3 according to the embodiment of the present utility model.
As shown in fig. 1 to 6, a burner 100 according to an embodiment of the present utility model includes a housing 1, a pre-combustion cylinder 2, and a blowing pipe 3 according to an embodiment of the present utility model.
The housing 1 has a plenum 11. The prechamber 2 has a prechamber 21, at least part of the prechamber 2 extending into the housing 1 and the prechamber 21 communicating with the plenum 11. Specifically, the plenum 11 and the prechamber 21 are arranged in this order in the first direction. The first direction may be a left-right direction, which is indicated by an arrow in the figure. For example, the plenum 11 is located on the left side of the prechamber 21 and communicates with the prechamber inlet on the left side of the prechamber 21, and the right side of the prechamber 21 is provided with a prechamber outlet so that the burning flame exits from the prechamber outlet on the right side of the prechamber 21.
As shown in fig. 2 to 6, the blowing pipe 3 according to the embodiment of the present utility model includes a pipe body 31 and a boss 32. The tube 31 is arranged on the housing 1, and the first end 311 of the tube 31 defines a nozzle, the nozzle of the tube 31 passing through the plenum 11 and extending into the prechamber 21.
In some embodiments, a first portion 312 of the tube 31 is located within the prechamber 21, a first end 311 is located on the first portion 312, the extension direction of the first portion 312 intersects the first direction, and the first portion 312 is disposed obliquely downward in the first direction in a direction away from the plenum 11. Specifically, the first portion 312 of the pipe body 31 is a portion of the pipe body 31 located in the precombustor 21, and the extending direction of the first portion 312 is inclined so as to match with the tapered wall surface of the precombustor 21, and the blowing direction of the blowing opening of the pipe body 31 is consistent with the extending direction of the first portion 312 so as to blow downwards. The first end 311 of the pipe 31 is the end of the first portion 312 away from the plenum 11, and the blowing port of the pipe 31 is inclined downward so that the air blows toward unburned pulverized coal and cinder particles that settle in the bottom of the prechamber 21. For example, the first portion 312 is inclined downward and rightward, and the blowing port of the pipe body 31 is opened at the right end portion of the first portion 312.
As shown in fig. 2 to 6, the boss 32 is provided on the first end 311 of the pipe body 31, the boss 32 extends in the circumferential direction of the mouthpiece, and the boss 32 protrudes in the axial direction of the pipe body 31 (first portion 312) in a direction away from the first end 311. Specifically, the first end portion 311 has an annular end surface, an inner edge of the annular end surface defines a blowing port, and the boss 32 is provided on the annular end surface of the first end portion 311 and projects in the axial direction of the pipe body 31 (the first portion 312) in a direction away from the annular end surface of the first end portion 311, the annular end surface of the first end portion 311 being perpendicular to the axial direction of the first portion 312. The boss 32 may be annular defining a cavity in communication with the mouthpiece, or the boss may be arcuate to direct only the wind exiting the mouthpiece. The axial direction of the boss 32 coincides with the axial direction of the first portion 312. The tube 31 is a circular tube. For example, the convex portion 32 protrudes to the right lower side.
In some embodiments, the boss 32 is removably disposed on the mouthpiece of the tube 31. For example, an insertion portion is provided on a side of the boss 32 adjacent to the pipe body 31, and a click portion is provided in the injection port to be engaged with the insertion portion so that the insertion portion is positioned accurately.
In some embodiments, the boss 32 is integrally formed with the tube 31. The boss 32 may be machined directly onto the first end 311.
As shown in fig. 2 to 6, the upper portion of the boss 32 decreases in size in the axial direction of the tube body 31 from top to bottom. Specifically, the upper portion of the boss 32 may be a portion located above the central axis of the first portion 312, and the lower portion of the boss 32 may be a portion located below the central axis of the first portion 312. The up-down direction is shown by the arrow in the figure. The upper portion of the boss 32 decreases in size in the axial direction of the tube body 31 from top to bottom. So that the upper portion of the boss 32 is made to be upward, the dimension in the axial direction of the pipe body 31 (the first portion 312) is made to be larger, so that the guiding (restricting) length of the wind body is made to be longer, thereby facilitating the guiding of the wind body, so that the wind body is blown downward.
In some embodiments, the boss 32 decreases in size in the axial direction of the tube 31 from top to bottom. That is, the larger the whole of the boss 32 is, the larger the dimension in the axial direction of the tube body 31 (the first portion 312) is, so that the greater the guiding (restricting) length of the wind body is, thereby facilitating the guiding of the wind body, so that the wind body is blown downward.
As shown in fig. 3 to 5, in some embodiments, the size of the boss 32 in the axial direction of the tube body 31 decreases from top to bottom and then increases. That is, the top and bottom of the boss 32 are larger in the axial direction of the pipe body 31 (the first portion 312), and the middle position of the boss 32 in the up-down direction is smaller in the axial direction of the pipe body 31 (the first portion 312), so that the boss 32 guides (limits) the upper portion and the lower portion of the wind body to a larger length, and the wind body can be blown in the preset direction, so that the wind body blowing direction is positioned more accurately, so that the wind body is blown to the preset position and the blowing is made cleaner. For example, the blown wind body can be made to be fan-shaped, and the cleaning is cleaner while the coverage area is large.
In some embodiments, in a cross section perpendicular to the second direction, the projection of the upper portion of the boss 32 onto the tube 31
A first edge 321 is arranged on one side far away from the pipe body 31 in the axial direction, a second edge 322 is arranged on one side far away from the pipe body 31 in the axial direction 5 of the pipe body 31 in the projection of the lower part of the convex part 32, the lower end of the first edge 321 is connected with the upper end of the second edge 322, and the second edge is formed by
Any two of the one direction, the second direction and the up-down direction are perpendicular to each other. Specifically, the first edge 321 is located above the second edge 322. The distance between the first edge 321 and the first portion 312 in the axial direction of the pipe body 31 decreases from top to bottom, and the distance between the second edge 322 and the first portion 312 in the axial direction of the pipe body 31 increases from top to bottom. The second direction may be a front-rear direction, which is perpendicular to the left-right direction and the up-down direction.
0 As shown in FIG. 4, in some embodiments, the first edge 321 and the second edge 322 are both arcuate, the first edge 321
And the second edge 322 forms a concave arcuate slot. For example, the first edge 321 and the second edge 322 form a concave semi-circular arc-shaped slot.
As shown in fig. 3 and 5, in some embodiments, the first edge 321 and the second edge 322 are both straight edges, and the first edge 321 and the second edge 322 are angled.
5 specifically, the first edge 321 and the second edge 322 are both straight edges, and the first edge 321 and the second edge 322 are both straight edges
The axial included angle of the tube body 31 (the first portion 312) is 30 ° or more and 60 ° or less. For example, at least one of the first edge 321 and the second edge 322 may be at an angle of one of 30 °, 45 °, and 60 ° with respect to the axial direction of the tube body 31 (the first portion 312).
In some embodiments, first edge 321 is perpendicular to second edge 322. For example, the first edge 321 and the second edge 0 edge 322 are each 45 °; alternatively, one of the first edge 321 and the second edge 322 is 30 °, the first edge 321 and the second edge 322
The other of the second edges 322 is 60 °.
In some embodiments, the boss 32 is annular and defines a blowing chamber 33, the blowing chamber 33 being in communication with the blowing port of the tube body 31, the inner diameter of the blowing chamber 33 increasing in the axial direction of the blowing tube 3 in a direction away from the blowing tube 3. Specifically, the blowing chamber
33 axially corresponds to the axial direction of the first portion 312, thereby increasing the range of blowing of the wind body from the blowing port, and 5 is guided and limited by the boss 32 to accurately blow the unburned pulverized coal and cinder deposited at the bottom of the precombustor 21
And (3) particles.
As shown in fig. 2, in the first embodiment of the blowing pipe 3, the size of the boss 32 in the axial direction of the pipe body 31 decreases from top to bottom. In a cross section perpendicular to the second direction (front-rear direction), the projection of the boss 32 is projected on the axis of the tube body 31
The side facing upwards away from the tube 31 is an obliquely arranged edge. That is, the side surface of the boss 32 away from the tube body 310 in the axial direction of the tube body 31 is a slope toward the lower side.
As shown in fig. 3, in the second embodiment of the blowing pipe 3, the size of the boss 32 in the axial direction of the pipe body 31 decreases from top to bottom and increases from top to bottom, and the size of the top of the boss 32 in the axial direction of the pipe body 31 is larger than the size of the bottom of the boss 32 in the axial direction of the pipe body 31. On a cross section perpendicular to the second direction (front-rear direction), a projection of an upper portion of the boss 32 is a first edge 321 on a side of the tube body 31 away from the tube body 31 in the axial direction, a projection of a lower portion of the boss 32 is a second edge 322 on a side of the tube body 31 away from the tube body 31 in the axial direction, the first edge 321 and the second edge 322 are both straight edges, and the first edge 321 and the second edge 322 form an included angle.
As shown in fig. 4, in the third embodiment of the blowing pipe 3, the size of the boss 32 in the axial direction of the pipe body 31 decreases from top to bottom and increases thereafter, and the size (substantially) of the top of the boss 32 in the axial direction of the pipe body 31 is equal to the size of the bottom of the boss 32 in the axial direction of the pipe body 31. On a cross section perpendicular to the second direction (front-rear direction), a projection of an upper portion of the boss 32 is a first edge 321 on a side of the tube body 31 away from the tube body 31 in the axial direction, a projection of a lower portion of the boss 32 is a second edge 322 on a side of the tube body 31 away from the tube body 31 in the axial direction, the first edge 321 and the second edge 322 are both arc-shaped, and the first edge 321 and the second edge 322 constitute an arc-shaped groove that is concave.
As shown in fig. 5, in the fourth embodiment of the blowing pipe 3, the size of the boss 32 in the axial direction of the pipe body 31 decreases from top to bottom and increases from top to bottom, and the size of the top of the boss 32 in the axial direction of the pipe body 31 is larger than the size of the bottom of the boss 32 in the axial direction of the pipe body 31. On a cross section perpendicular to the second direction (front-rear direction), a projection of an upper portion of the boss 32 is a first edge 321 on a side of the tube body 31 away from the tube body 31 in the axial direction, a projection of a lower portion of the boss 32 is a second edge 322 on a side of the tube body 31 away from the tube body 31 in the axial direction, the first edge 321 and the second edge 322 are both straight edges, and the first edge 321 and the second edge 322 are perpendicular.
As shown in fig. 6, in the fifth embodiment of the blowing pipe 3, the upper portion of the boss 32 decreases in size in the axial direction of the pipe body 31 from top to bottom. On a cross section perpendicular to the second direction (front-rear direction), a side of the projection of the upper portion of the boss 32 away from the tube body 31 in the axial direction of the tube body 31 is a first edge 321, and an edge of the projection of the lower portion of the boss 32 on the side of the tube body 31 away from the tube body 31 in the axial direction is perpendicular to the axial direction of the first portion 312.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.
Claims (10)
1. A burner, comprising:
a housing having an air plenum;
a precombustion barrel having a precombustion chamber, at least a portion of the precombustion barrel extending into the housing and the precombustion chamber in communication with the plenum;
the blowing pipe, the blowing pipe includes body and bellying, the body is established on the casing, the blowing mouth is injectd to the first end of body, the body the blowing mouth passes the plenum and stretch into in the prechamber, the bellying is established the body on the first end, the bellying is followed the circumference extension of blowing mouth, the bellying is in the axial direction of body is kept away from the direction protrusion of first end, the upper portion of bellying is in the axial of body reduces from last to lower.
2. The burner of claim 1, wherein the boss decreases in size in an axial direction of the tube body from top to bottom.
3. The burner of claim 1, wherein the boss decreases in size from top to bottom and increases in size in an axial direction of the tube.
4. A burner according to claim 3, wherein,
the air chamber and the precombustion chamber are sequentially arranged in a first direction;
on a cross section perpendicular to a second direction, a projection of the upper part of the protruding part is a first edge on one side, far away from the pipe body, in the axial direction of the pipe body, a projection of the lower part of the protruding part is a second edge on one side, far away from the pipe body, in the axial direction of the pipe body, the lower end of the first edge is connected with the upper end of the second edge, and any two of the first direction, the second direction and the up-down direction are perpendicular to each other;
the first edge and the second edge are arc-shaped, and form an inwards concave arc-shaped groove;
or the first edge and the second edge are straight edges, and the first edge and the second edge form an included angle.
5. The burner of claim 4, wherein the first edge and the second edge are straight edges, and an included angle between the first edge and the second edge and an axial direction of the tube body is greater than or equal to 30 ° and less than or equal to 60 °.
6. The burner of claim 5, wherein the first rim is perpendicular to the second rim.
7. The burner of claim 4, wherein a first portion of the tube is located within the prechamber, the first end being located on the first portion, the first portion extending in a direction that intersects the first direction, the first portion being disposed obliquely downward in the first direction in a direction away from the plenum.
8. A burner as claimed in any one of claims 1 to 7,
the convex part is detachably arranged on the jetting port of the pipe body;
or, the protruding part and the pipe body are integrally formed.
9. The burner of claim 8 wherein the boss is annular and defines a lance cavity having an inner diameter that increases in an axial direction of the lance in a direction away from the lance.
10. A lance, characterized in that it is a lance according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320025069.4U CN219014302U (en) | 2023-01-05 | 2023-01-05 | Injection pipe and burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320025069.4U CN219014302U (en) | 2023-01-05 | 2023-01-05 | Injection pipe and burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219014302U true CN219014302U (en) | 2023-05-12 |
Family
ID=86247111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320025069.4U Active CN219014302U (en) | 2023-01-05 | 2023-01-05 | Injection pipe and burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219014302U (en) |
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2023
- 2023-01-05 CN CN202320025069.4U patent/CN219014302U/en active Active
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