CN214536154U - Combined pulverized coal burner nozzle - Google Patents
Combined pulverized coal burner nozzle Download PDFInfo
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- CN214536154U CN214536154U CN202120610849.6U CN202120610849U CN214536154U CN 214536154 U CN214536154 U CN 214536154U CN 202120610849 U CN202120610849 U CN 202120610849U CN 214536154 U CN214536154 U CN 214536154U
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- nozzle
- blunt body
- spout
- blunt
- pulverized coal
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Abstract
The utility model relates to a combined pulverized coal burner nozzle, which comprises a nozzle body, a nozzle blunt body device, a transmission device and a sealing device; wherein the spout bluff body device comprises a first spout bluff body and a second spout bluff body; the first nozzle blunt body and the second nozzle blunt body are of an integrally formed structure or are detachably connected and matched; the detachable connection comprises insertion connection, clamping connection, riveting connection or threaded connection; the nozzle blunt body device is arranged in the nozzle body in a sliding manner through a transmission device; the sealing device is arranged at the joint of the nozzle blunt body device and the transmission device. The novel nozzle blunt body has the advantages of being reasonable in structural design and convenient to use, can realize refinement and rationalization adjustment of boiler combustion under different working conditions of a boiler and under the condition of coal quality change, optimizes the construction process for nozzle blunt body replacement, improves the working efficiency of nozzle blunt body replacement, prolongs the service life of a burner nozzle, reduces the purchase cost of the nozzle blunt body, and is relatively remarkable in economic benefit.
Description
Technical Field
The utility model relates to a combustion boiler technical field especially relates to a combination pulverized coal burner spout.
Background
The nozzle of the conventional pulverized coal burner is of a rivet welding structure and an integral casting structure, the nozzle is made of wear-resistant high-temperature-resistant alloy steel, cast steel and the like, and the nozzle of the pulverized coal burner is made of a material, so that in the operation process of a boiler, a nozzle blunt body cannot be correspondingly refined and adjusted according to operation needs and coal quality changes. In addition, conventional pulverized coal burner ports have problems
1. The nozzle blunt body and the nozzle body are of an integral structure, when the load and the coal quality change in the operation process of the boiler, the nozzle blunt body of the burner cannot be finely adjusted on line, and the coal adaptability of the burner is poor;
2. according to the nozzle of the conventional pulverized coal burner, the nozzle body and the blunt body adopt an integral structure, when the blunt body is damaged, the nozzle needs to be integrally replaced, or the original blunt body is cut by flame welding or plasma for replacement, so that the construction is inconvenient and the construction amount is large;
3. the blunt body of conventional pulverized coal burner spout and spout body adopt equal material, in order to guarantee the life of spout, can only wholly improve the material, and combustor spout purchase cost is higher.
The utility model discloses just provide based on above-mentioned research background, aim at providing a combination pulverized coal burner spout to overcome above-mentioned defect, satisfy the boiler and use needs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a combination pulverized coal burner spout, it has that structural design is reasonable, convenient to use's characteristics, under the different operating modes of boiler and under the coal quality change condition, can realize becoming more meticulous, rationalization adjustment to the boiler burning, optimized the construction process that the spout bluff body was changed, improved the work efficiency that the spout bluff body was changed, prolonged the life of combustor spout, reduced the purchase cost of spout bluff body, economic benefits is showing relatively.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a combined pulverized coal burner nozzle comprises a nozzle body, a nozzle blunt body device, a transmission device and a sealing device; wherein the spout bluff body device comprises a first spout bluff body and a second spout bluff body; the first nozzle blunt body and the second nozzle blunt body are of an integrally formed structure or are detachably connected and matched; the detachable connection comprises insertion connection, clamping connection, riveting connection or threaded connection; the nozzle blunt body device is rotationally or slidably arranged in the nozzle body through a transmission device; the sealing device is arranged at the joint of the nozzle blunt body device and the transmission device.
As a further optimization of the above scheme, the transmission device includes a connecting rod vertically disposed on the outer peripheral surface of the first nozzle blunt body and/or the second nozzle blunt body, and a lead screw in transmission connection with the connecting rod, and the lead screw is in transmission connection with the direct current motor.
As a further optimization of the scheme, the screw rod is provided with a screw rod sliding block, and the screw rod sliding block is connected with the connecting rod.
As a further optimization of the scheme, a guide groove matched with the connecting rod is arranged on the nozzle body; the length direction of the guide groove is consistent with the length direction of the nozzle body.
As a further optimization of the scheme, the sealing device is a sealing ring, and a mounting hole matched with the connecting rod is formed in the sealing ring.
As a further optimization of the above scheme, the transmission device includes a swinging assembly installed at one end of the first nozzle blunt body or the second nozzle blunt body, the swinging assembly includes a transmission connecting rod, one end of the transmission connecting rod is hinged to one end of the first nozzle blunt body or the second nozzle blunt body, the other end of the transmission connecting rod is provided with a rack, and the rack is in meshed connection with a gear of the direct current motor; the rack is installed on the left side or the upper side of one end of the first spout blunt body or the second spout blunt body. The mounting position of the rack is changed, and under the driving of the direct current motor, one end of the first nozzle blunt body or the second nozzle blunt body can swing in the left-right direction and in the up-down direction.
Adopt the utility model discloses a combination pulverized coal burner spout has following beneficial effect:
1. the structural design is more reasonable, and the combustion adjustment of the boiler is more refined and reasonable;
2. the construction process for replacing the burner bluff body is simplified, so that the replacement of the burner bluff body is simple and feasible;
3. the service life of the nozzle of the pulverized coal burner is prolonged;
4. the purchase cost of the nozzle of the medium-coal-powder burner is reduced.
Drawings
FIG. 1 is a main view structure diagram of the nozzle of the combined pulverized coal burner of the present invention applied to a tangential burner.
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1.
Fig. 3 is a front view structural diagram of the nozzle of the combined pulverized coal burner of the present invention applied to a direct-fired flame burner.
Fig. 4 is a schematic cross-sectional view B-B of fig. 3.
Detailed Description
The combined pulverized coal burner nozzle of the present invention will be described in detail with reference to the accompanying drawings 1-4.
A combined pulverized coal burner nozzle comprises a nozzle body 1, a nozzle blunt body device, a transmission device and a sealing device; wherein the spout blunt body device comprises a first spout blunt body 2 and a second spout blunt body 3; the first nozzle blunt body and the second nozzle blunt body are of an integrally formed structure or are detachably connected and matched; the detachable connection comprises insertion connection, clamping connection, riveting connection or threaded connection; the nozzle blunt body device is rotationally or slidably arranged in the nozzle body through a transmission device 4; the sealing device 5 is arranged at the joint of the nozzle blunt body device and the transmission device. The transmission device comprises a connecting rod vertically arranged on the outer peripheral surface of the first nozzle blunt body and/or the second nozzle blunt body and a lead screw in transmission connection with the connecting rod, and the lead screw is in transmission connection with the direct current motor. The lead screw is provided with a lead screw sliding block, and the lead screw sliding block is connected with the connecting rod. The nozzle body is provided with a guide groove matched with the connecting rod; the length direction of the guide groove is consistent with the length direction of the nozzle body. The sealing device is a sealing ring, and a mounting hole matched with the connecting rod is formed in the sealing ring. The transmission device comprises a swinging assembly arranged at one end of the first nozzle blunt body or the second nozzle blunt body, the swinging assembly comprises a transmission connecting rod, one end of the transmission connecting rod is hinged to one end of the first nozzle blunt body or the second nozzle blunt body, the other end of the transmission connecting rod is provided with a rack, and the rack is meshed with a gear of a direct current motor; the rack is installed on the left side or the upper side of one end of the first spout blunt body or the second spout blunt body. The mounting position of the rack is changed, and under the driving of the direct current motor, one end of the first nozzle blunt body or the second nozzle blunt body can swing in the left-right direction and in the up-down direction. The structure of the transmission device in the application is not limited to the structure, and the front-back, left-right and up-down movement of the application can be realized by adopting other transmission devices in the prior art, so that the details are not repeated.
The combined pulverized coal burner nozzle of the utility model has the following characteristics in use:
because direct current motor can with PLC controller interconnect, when actual design, the design of specific control circuit belongs to prior art, and no longer repeated here. Due to the adoption of the design, the use requirement of the combined pulverized coal burner nozzle of the blunt body capable of being adjusted on line can be realized. The structural design of the transmission device can realize the back and forth movement, the up and down swinging and the left and right swinging of the first nozzle blunt body and the second nozzle blunt body along the axial direction of the combustor, and according to the operation modes of different working conditions, the air distribution of different coal types needs to be refined and rationalized for combustion optimization and adjustment; when the burner nozzle blunt body is replaced, only the first nozzle blunt body and the second nozzle blunt body need to be detached and replaced in the nozzle, and the first nozzle blunt body, the second nozzle blunt body and the transmission device adopt an embedded structure, so that the structure is simple, the disassembly and assembly are easy, the construction process is simple, the operation is convenient, and the work efficiency of the blunt body replacement is improved; the nozzle blunt body of the combined pulverized coal burner is formed by combining the first nozzle blunt body and the second nozzle blunt body, so that the erosion and wear resistance of a windward side can be met, the high-temperature corrosion resistance of an outlet side of the burner can be met, and the service life of the nozzle blunt body of the burner is prolonged; when the nozzle of the combined pulverized coal burner is purchased, only the first nozzle blunt body and the second nozzle blunt body need to be purchased, so that the material cost is saved.
Above-mentioned each embodiment only is used for explaining the utility model discloses, wherein structure, connected mode and the preparation technology etc. of each part all can change to some extent, all are in the utility model discloses equal transform and improvement of going on technical scheme's the basis all should not exclude outside the protection scope of the utility model.
Claims (6)
1. The utility model provides a combination pulverized coal burner spout which characterized in that: the nozzle of the combined pulverized coal burner comprises a nozzle body (1), a nozzle blunt body device, a transmission device and a sealing device; wherein the spout blunt body device comprises a first spout blunt body (2) and a second spout blunt body (3); the first nozzle blunt body and the second nozzle blunt body are of an integrally formed structure or are detachably connected and matched; the detachable connection comprises insertion connection, clamping connection, riveting connection or threaded connection; the spout blunt body device is rotationally or slidably arranged in the spout body through a transmission device (4); the sealing device (5) is arranged at the joint of the spout blunt body device and the transmission device.
2. The combined pulverized coal burner nozzle of claim 1, wherein: the transmission device comprises a connecting rod vertically arranged on the outer peripheral surface of the first nozzle blunt body and/or the second nozzle blunt body and a lead screw in transmission connection with the connecting rod, and the lead screw is in transmission connection with the direct current motor.
3. The combined pulverized coal burner nozzle as claimed in claim 2, characterized in that: the lead screw is provided with a lead screw sliding block, and the lead screw sliding block is connected with the connecting rod.
4. The combined pulverized coal burner nozzle of claim 3, wherein: the nozzle body is provided with a guide groove matched with the connecting rod; the length direction of the guide groove is consistent with the length direction of the nozzle body.
5. The combined pulverized coal burner nozzle as claimed in claim 4, characterized in that: the sealing device is a sealing ring, and a mounting hole matched with the connecting rod is formed in the sealing ring.
6. The combined pulverized coal burner nozzle of claim 1, wherein: the transmission device comprises a swinging assembly arranged at one end of the first nozzle blunt body or the second nozzle blunt body, the swinging assembly comprises a transmission connecting rod, one end of the transmission connecting rod is hinged to one end of the first nozzle blunt body or the second nozzle blunt body, the other end of the transmission connecting rod is provided with a rack, and the rack is meshed with a gear of a direct current motor; the rack is installed on the left side or the upper side of one end of the first spout blunt body or the second spout blunt body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610849.6U CN214536154U (en) | 2021-03-26 | 2021-03-26 | Combined pulverized coal burner nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120610849.6U CN214536154U (en) | 2021-03-26 | 2021-03-26 | Combined pulverized coal burner nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214536154U true CN214536154U (en) | 2021-10-29 |
Family
ID=78265977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120610849.6U Active CN214536154U (en) | 2021-03-26 | 2021-03-26 | Combined pulverized coal burner nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214536154U (en) |
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2021
- 2021-03-26 CN CN202120610849.6U patent/CN214536154U/en active Active
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