CN116878004A - Decompression soot blower for boiler of thermal power plant and application method thereof - Google Patents
Decompression soot blower for boiler of thermal power plant and application method thereof Download PDFInfo
- Publication number
- CN116878004A CN116878004A CN202311003285.XA CN202311003285A CN116878004A CN 116878004 A CN116878004 A CN 116878004A CN 202311003285 A CN202311003285 A CN 202311003285A CN 116878004 A CN116878004 A CN 116878004A
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- China
- Prior art keywords
- boiler
- soot blower
- decompression
- blowing
- blowing pipe
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- 239000004071 soot Substances 0.000 title claims abstract description 63
- 230000006837 decompression Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007664 blowing Methods 0.000 claims abstract description 114
- 239000002184 metal Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims 4
- 238000013508 migration Methods 0.000 claims 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention provides a decompression soot blower for a boiler of a thermal power plant and a use method thereof, and the decompression soot blower comprises a bearing bottom plate, a soot blower body, a blowing component and a horizontal moving component, wherein the soot blower body and the horizontal moving component are respectively fixed on the bearing bottom plate, the blowing component is connected with the soot blower body, and the blowing component is connected with the horizontal moving component and can reciprocate back and forth under the action of the horizontal moving component. According to the invention, the horizontal moving assembly drives the blowing assembly to reciprocate, so that the blowing assembly can reciprocate in the boiler, soot blowing without dead angles can be performed, and the soot blowing efficiency is higher.
Description
Technical Field
The invention relates to the technical field of boiler cleaning in a thermal power plant, in particular to a decompression soot blower for a boiler in a thermal power plant and a use method thereof.
Background
In the long-term operation process of the boiler of the thermal power plant, the heating surface can generate dust accumulation and coking, so that heat transfer is deteriorated, and for the tail flue, a severe accident of reburning can also occur due to long-term accumulation of combustible materials, so that the heating surface needs to be subjected to soot blowing after the boiler operates for a period of time to clean the heating surface.
The Chinese patent publication No. CN217816817U discloses a novel decompression soot blower for a boiler of a thermal power plant, which mainly solves the problems of limited soot blowing range and dead angle of soot blowing by utilizing a knocking vibration mode, and has the defect of insufficient soot removing effect, however, through the intensive study on the patent and the soot blowing work of the boiler, the following problems are found in the comparison document: most of the thermal power plants have large boiler volume and large internal volume, and the telescopic range of the base lifting motor is small, so that the condition that the inner wall of the boiler cannot be knocked and vibrated can be caused, and the defect of insufficient soot blowing still can be caused. Therefore, there is an urgent need to improve the existing decompression soot blower of the boiler, and provide a decompression soot blower for a boiler of a thermal power plant.
Disclosure of Invention
The invention aims to provide a decompression soot blower for a boiler of a thermal power plant and a use method thereof, which can enable a blowing assembly to reciprocate in the boiler, can perform soot blowing without dead angles, and has higher soot blowing efficiency.
According to one object of the invention, the invention provides a decompression soot blower for a boiler of a thermal power plant, which comprises a bearing bottom plate, a soot blower body, a blowing assembly and a horizontal moving assembly, wherein the soot blower body and the horizontal moving assembly are respectively fixed on the bearing bottom plate, the blowing assembly is connected with the soot blower body, and the blowing assembly is connected with the horizontal moving assembly and can reciprocate back and forth under the action of the horizontal moving assembly.
Further, the blowing component is connected with the soot blower body through a metal corrugated pipe.
Further, a supporting guide frame is fixed on the bearing bottom plate.
Further, the air blowing assembly comprises an air blowing pipe and a rotary joint, one end of the air blowing pipe is connected with the rotary joint, and a plurality of equally-spaced air outlet holes are formed in the side wall of one side, away from the rotary joint, of the air blowing pipe.
Further, the head end of the air blowing pipe is of a conical structure, the front end of the air blowing pipe is provided with an air outlet, and the aperture of the air outlet is the same as that of the air outlet.
Further, the horizontal movement assembly comprises a supporting plate, a fixing sleeve and a guide rod, the fixing sleeve is fixed at the bottom of the supporting plate and corresponds to the guide rod, two ends of the guide rod are respectively fixed on the bearing bottom plate, and the fixing sleeve is sleeved on the guide rod and can move along the guide rod.
Further, the number of the guide rods is two, and the two guide rods are arranged in parallel.
Further, a connecting rod is fixed at the bottom of the rotary joint, and the connecting rod is fixed on the supporting plate.
Further, the air blowing pipe is installed fixedly connected with first gear on the one end outer wall of rotary joint, be fixed with driving motor on the layer board, driving motor's output shaft fixedly connected with second gear, the second gear with first gear engagement is connected, the wave guide way has been seted up to the outer wall of air blowing pipe, the top both ends of supporting the guide frame all are equipped with horizontal bulge and extend to in the guide way.
Further, the guide groove is a wave-shaped guide groove communicated with the head and the tail.
According to another object of the invention, the invention provides a use method of the decompression soot blower for the boiler of the thermal power plant, which comprises the following steps:
s1, extending one end of a blowing pipe into a boiler, starting a soot blower body to supply air for the blowing pipe, and blowing the soot to the boiler through an air outlet hole and an air outlet hole of the blowing pipe;
s2, starting a driving motor, driving a second gear and a first gear to drive a blowing pipe to rotate, and enabling the blowing pipe to reciprocate while rotating under the action of a guide groove and a supporting guide frame, so as to perform soot blowing without dead angles;
s3, in the moving process of the blowing assembly, under the action of the connecting rod, the supporting plate and the driving motor are pulled to synchronously follow the movement along the guide rod, so that the first gear and the second gear are always meshed, and the stable operation of the soot blower is ensured.
According to the technical scheme, the horizontal moving assembly drives the blowing assembly to reciprocate, so that the blowing assembly can reciprocate in the boiler, soot blowing without dead angles can be performed, and soot blowing efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of the present invention;
FIG. 3 is a schematic view of a blowing assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view showing a right-shift bottom structure of the air blowing assembly according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a blowing pipe according to an embodiment of the present invention.
In the figure: 1. a load-bearing bottom plate; 2. a soot blower body; 3. a metal bellows; 4. an air blowing assembly; 41. an air blowing pipe; 42. a rotary joint; 43. a first gear; 44. a connecting rod; 5. a support guide frame; 6. a driving motor; 7. a second gear; 8. a horizontal movement assembly; 81. a supporting plate; 82. a fixed sleeve; 83. a guide rod.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, 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", 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
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 one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1-5, a decompression soot blower for a boiler of a thermal power plant comprises a bearing bottom plate 1, a soot blower body 2 and a blowing component 4, wherein the soot blower body 2 is fixed on the bearing bottom plate 1, the right end of the soot blower body 2 is connected with a metal corrugated pipe 3, and the right end of the metal corrugated pipe 3 is provided with the blowing component 4. The invention utilizes the soot blower body 2 to blow the soot of the boiler, and can realize uninterrupted air supply of the soot blower body 2 to the air blowing component 4 under the action of the metal corrugated pipe 3.
The support guide frame 5 is welded above the bearing bottom plate 1, one end of the air blowing component 4, which is far away from the metal corrugated pipe 3, is arranged on the support guide frame 5, and the support can be provided for the air blowing component 4 under the action of the support guide frame 5.
As shown in fig. 3, in this embodiment, the air blowing assembly 4 includes an air blowing pipe 41, a rotary joint 42, a first gear 43 and a connecting rod 44, the left end of the air blowing pipe 41 is connected with the rotary joint 42, the first gear 43 is fixedly connected to the outer wall of one end of the air blowing pipe 41, where the rotary joint 42 is installed, the air blowing pipe 41 and the first gear 43 are mutually fixed in a welding manner, and the connecting rod 44 is welded at the bottom of the rotary joint 42.
A horizontal moving assembly 8 is fixed above the front end of the bearing bottom plate 1, and one end of the blowing assembly 4 is fixed on the horizontal moving assembly 8 and can slide along the horizontal moving assembly 8. Specifically, the horizontal movement assembly 8 comprises a supporting plate 81, a fixed sleeve 82 and a guide rod 83, wherein the two fixed sleeves 82 are welded at the bottom of the supporting plate 81, the two guide rods 83 are arranged in parallel, two ends of the two guide rods 80 are respectively welded and fixed with the bearing bottom plate 1, the two fixed sleeves 82 are sleeved on the corresponding guide rods 83 and the fixed sleeves 82 are in sliding connection with the guide rods 83, and the sliding direction of the supporting plate 81 can be limited through the arrangement of the guide rods 83. The connecting rod 44 of the air blowing assembly 4 is welded to the pallet 81 so that the air blowing assembly 4 can slide on the guide rod 83 with the pallet 81.
Three groups of air outlet holes which are arranged at equal intervals are arranged on the right side of the air blowing pipe 41, the head end of the air blowing pipe 41 can be designed into a conical structure for better air blowing effect, the front end opening of the air blowing pipe is designed into a round hole structure with the same diameter as that of the air outlet holes on the side wall, and the boiler is blown through the air outlet holes on the right end of the air blowing pipe 41 and the groups of air outlet holes arranged on the right end of the air blowing pipe.
The left end outer wall of the air blowing pipe 41 is provided with a wavy guide groove, and the head and the tail of the guide groove are communicated. Both ends of the support guide frame 5 are respectively arranged at both sides of the air blowing pipe 41, both ends of the top of the support guide frame 5 are respectively provided with a horizontal protruding part and extend into a guide groove of the outer wall of the air blowing pipe 41, and the support guide frame 5 is arranged in the guide groove so as to support the air blowing pipe 41 and guide the air blowing pipe 41 to move while rotating.
In order to realize the rotation of the air blowing pipe 41 of the air blowing assembly 4, a driving motor 6 is fixed on the horizontal moving assembly 8, an output shaft of the driving motor 6 is fixedly connected with a second gear 7, the second gear 7 is meshed and connected with a first gear 43, the driving motor 6 is used for controlling the second gear 7 to rotate, the air blowing pipe 41 can be rotated through the first gear 43 meshed with the second gear 7, the air blowing assembly 4 is controlled to move along with the horizontal moving assembly 8, and the driving motor 6 can move synchronously along with the air blowing assembly 4 by means of the arrangement of the horizontal moving assembly 8. Under the action of the connecting rod 44, the supporting plate 81 moves synchronously along with the rotary joint 42, so that the blowing assembly 4, the supporting plate 81, the driving motor 6 and the second gear 7 can move synchronously, and the stability of the working operation of the soot blower is ensured.
The working principle of the invention is as follows:
when the device is used, firstly, one end of the air blowing pipe 41 extends into a boiler, the soot blower body 2 is started, air is supplied to the air blowing pipe 41 through the metal corrugated pipe 3 and the rotary joint 42, and soot blowing operation is performed on the boiler through the air outlet hole at the right end of the air blowing pipe 41 and a plurality of groups of air outlet holes formed in the right end of the air blowing pipe;
starting the driving motor 6, controlling the second gear 7 to rotate, and driving the blowing pipe 41 positioned on the right side of the rotary joint 42 to rotate by utilizing the first gear 43, wherein in the process, the blowing pipe 41 can reciprocate according to the driving motor while rotating through a guide groove formed in the outer wall of the left end of the blowing pipe 41 and a supporting guide frame 5, one end of the blowing pipe 41 with an air outlet hole can reciprocate while rotating in the boiler, blowing without dead angles can be performed, and the blowing efficiency is higher;
in the process of moving the blowing assembly 4, under the action of the connecting rod 44, the supporting plate 81 and the driving motor 6 can be pulled to synchronously follow the movement along the guide rod 83, so that the first gear 43 and the second gear 7 can be always meshed, the stable operation of the soot blower can be ensured, and meanwhile, the arrangement of the metal bellows 3 with the length capable of being automatically adjusted and the rotary joint 42 can be utilized to supply air uninterruptedly for the blowing pipe 41 in the running state, and the normal operation of soot blowing operation can be ensured.
According to the invention, the second gear is controlled to slowly rotate by the driving motor, so that the first gear drives the air blowing pipe to slowly rotate, at the moment, the air blowing pipe can be moved left and right in a reciprocating manner while rotating through the guide groove formed in the outer wall of the air blowing pipe and the supporting guide frame, one end of the air blowing pipe, which is provided with the air outlet hole, can be moved in a reciprocating manner while rotating in the boiler, soot blowing without dead angles can be performed, and the soot blowing efficiency is higher; in the whole blowing assembly moving soot blowing process, the supporting plate, the driving motor and the second gear can be driven to synchronously move along the guide rod through the connecting rod, so that the phenomenon that the device cannot normally run due to dislocation and separation of the first gear and the second gear is avoided, and meanwhile, the metal corrugated pipe and the rotary joint which can be automatically adjusted in length are utilized, so that uninterrupted gas supply can be carried out for the blowing pipe.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The utility model provides a decompression soot blower for boiler of thermal power plant, its characterized in that includes load floor, soot blower body, blows subassembly and horizontal migration subassembly, the soot blower body with the horizontal migration subassembly is fixed respectively on the load floor, blow the subassembly with the soot blower body coupling, blow the subassembly with the horizontal migration subassembly is connected and can be in the effect of horizontal migration subassembly back-and-forth reciprocating motion.
2. The decompression sootblower for a thermal power plant boiler according to claim 1, wherein the blowing component is connected with the sootblower body through a metal corrugated pipe.
3. The decompression soot blower for a boiler of a thermal power plant according to claim 1, wherein a supporting guide frame is fixed on the bearing bottom plate.
4. The decompression soot blower for a boiler of a thermal power plant according to claim 3, wherein the blowing assembly comprises a blowing pipe and a rotary joint, one end of the blowing pipe is connected with the rotary joint, and a side wall of the blowing pipe, which is far away from the rotary joint, is provided with a plurality of equally-spaced air outlet holes.
5. The decompression soot blower for boiler of thermal power plant according to claim 4, wherein the head end of the gas blowing pipe is in a conical structure, the front end of the gas blowing pipe is provided with a gas outlet hole, and the aperture of the gas outlet hole is the same as the aperture of the gas outlet hole.
6. The decompression soot blower for a boiler of a thermal power plant according to claim 5, wherein the horizontal movement assembly comprises a supporting plate, a fixing sleeve and a guide rod, the fixing sleeve is fixed at the bottom of the supporting plate and corresponds to the guide rod, two ends of the guide rod are respectively fixed on the bearing bottom plate, and the fixing sleeve is sleeved on the guide rod and can freely slide along the guide rod.
7. The decompression sootblower for a thermal power plant boiler according to claim 6, wherein the number of the guide rods is two, and the two guide rods are arranged in parallel with each other.
8. The decompression soot blower for a boiler of a thermal power plant according to claim 6, wherein a connecting rod is fixed to the bottom of the rotary joint, and the connecting rod is fixed to the supporting plate.
9. The decompression soot blower for boiler of thermal power plant according to claim 8, wherein the gas blowing pipe is provided with a first gear fixedly connected with the outer wall of one end of the rotary joint, a driving motor is fixedly arranged on the supporting plate, an output shaft of the driving motor is fixedly connected with a second gear, the second gear is meshed with the first gear and connected with the first gear, a wavy guide groove is formed in the outer wall of the gas blowing pipe, and horizontal protruding parts are arranged at two ends of the top of the supporting guide frame and extend into the guide groove.
10. The method of using a decompression sootblower for a thermal power plant boiler according to claim 9, comprising the steps of:
s1, extending one end of the blowing pipe into a boiler, starting the soot blower body to supply air for the blowing pipe, and blowing the soot to the boiler through the air outlet hole and the air outlet hole of the blowing pipe;
s2, starting the driving motor, driving the second gear and the first gear to drive the blowing pipe to rotate, and enabling the blowing pipe to reciprocate while rotating under the action of the guide groove and the supporting guide frame, so that blowing without dead angles is performed;
s3, the blowing assembly pulls the supporting plate and the driving motor to synchronously move along the guide rod under the action of the connecting rod in the moving process, so that the first gear and the second gear are always meshed, and the soot blower is ensured to stably operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311003285.XA CN116878004A (en) | 2023-08-09 | 2023-08-09 | Decompression soot blower for boiler of thermal power plant and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311003285.XA CN116878004A (en) | 2023-08-09 | 2023-08-09 | Decompression soot blower for boiler of thermal power plant and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116878004A true CN116878004A (en) | 2023-10-13 |
Family
ID=88260562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311003285.XA Pending CN116878004A (en) | 2023-08-09 | 2023-08-09 | Decompression soot blower for boiler of thermal power plant and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116878004A (en) |
-
2023
- 2023-08-09 CN CN202311003285.XA patent/CN116878004A/en active Pending
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