CN212668549U - Boiler ash conveying structure of thermal power plant - Google Patents
Boiler ash conveying structure of thermal power plant Download PDFInfo
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- CN212668549U CN212668549U CN202021272388.8U CN202021272388U CN212668549U CN 212668549 U CN212668549 U CN 212668549U CN 202021272388 U CN202021272388 U CN 202021272388U CN 212668549 U CN212668549 U CN 212668549U
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- ash conveying
- conveying pipeline
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Abstract
The utility model relates to a boiler ash conveying structure of thermal power plant. The ash conveying structure comprises a dust remover ash hopper, an ash storehouse and an ash conveying pipeline, wherein an air supply device is arranged at one end of the ash conveying pipeline close to the dust remover ash hopper, and an air guide structure is arranged in the ash conveying pipeline close to the air supply device; an anti-blocking and anti-deposition structure is arranged on one end of the ash conveying pipeline close to the ash storehouse, and a pressure sensor is arranged on the inner side wall of the ash conveying pipeline between the anti-blocking and anti-deposition structure and the ash storehouse; the pressure sensor is electrically connected with the controller; the anti-blocking and anti-dust-deposition structure comprises a shell sleeved outside the dust conveying pipeline, wherein a vibration piece is arranged in the shell, and a vibrator is arranged on the shell; the vibrator is electrically connected with the controller. The ash conveying structure can ensure the dispersion of air flow in the ash conveying pipeline, better disturb the ash in conveying and avoid attachment and accumulation; the dust accumulation structure is matched with the anti-blocking and dust accumulation preventing structure, and is periodically used or used when the pressure sensor senses pressure change, so that dust accumulation at the rear section of the dust conveying pipeline is removed, and the phenomenon of dust blockage in the pipeline is further eliminated.
Description
Technical Field
The utility model relates to a boiler ash conveying structure of thermal power plant.
Background
Thermal power plants are thermal power plants, which use coal as a primary energy source. Thermal power plant boiler ash content needs to last the output, adopt defeated ash pipeline to carry to the ash storehouse at present, defeated ash pipeline is generally through the air current transport, because compressed air flow is fixed at defeated ash pipeline internal direction, generally concentrate on the middle part of defeated ash pipeline, for the through-flow propelling movement, therefore, the stronger air current of ash content response in defeated ash pipeline middle part can carry smoothly, and from this also lead to ash content to take place deposit and jam in the defeated ash pipeline rear end that is longer relatively in the defeated ash pipeline, lead to gathering the ash content and taking place to block up in the defeated ash pipeline rear end pipeline from this, boiler unit's normal work has seriously been influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a boiler ash conveying structure of a thermal power plant, which can ensure the dispersion of air flow in the ash conveying pipeline in the conveying process, particularly can better disturb the dust in the conveying pipeline and avoid the dust from accumulating at the rear section of the ash conveying pipeline; meanwhile, the anti-blocking and anti-dust-deposition structure is matched, and the dust-deposition structure is used periodically or when the pressure sensor senses pressure change, so that dust deposition at the rear section of the dust conveying pipeline can be removed, the phenomenon of dust blockage in the pipeline is further eliminated, the normal work of equipment and a unit is ensured, and the problems existing in the prior art are solved.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a thermal power plant boiler ash conveying structure comprises a dust remover ash bucket, an ash storehouse and an ash conveying pipeline connected between the dust remover ash bucket and the ash storehouse;
an air supply device is arranged at one end of the ash conveying pipeline close to an ash hopper of the dust remover, and an air guide structure is arranged in the ash conveying pipeline close to the air supply device;
an anti-blocking and anti-deposition structure is arranged on one end, close to the ash storehouse, of the ash conveying pipeline, and a pressure sensor is arranged on the inner side wall of the ash conveying pipeline between the anti-blocking and anti-deposition structure and the ash storehouse; the pressure sensor is electrically connected with a controller;
the anti-blocking and anti-dust-deposition structure comprises a shell fixedly sleeved on the outer side of the dust conveying pipeline, a vibration piece is arranged in the shell, and a vibrator is arranged above and/or below the shell; the vibrator is electrically connected with the controller.
Furthermore, the air supply device is a high-pressure air supply machine, and the high-pressure air supply machine is connected with one end of the ash conveying pipeline;
the air guide structure is arranged on one side, close to the high-pressure air feeder, in the ash conveying pipeline; the air guide structure is a ventilation cylindrical plate fixedly arranged on the inner side wall of the ash conveying pipeline, a hollow annular hole air port is arranged on the periphery of the ventilation cylindrical plate, an annular vent hole is arranged on the ventilation cylindrical plate on the inner side of the hollow annular hole air port, and a circle center annular plate is supported at the circle center position of the annular vent hole; the circle center ring plate is provided with fan-shaped air deflectors which are obliquely arranged towards the side wall of the ash conveying pipeline along the air supply direction of the ash conveying pipeline, one end of each fan-shaped air deflector is fixed on the outer side of the circle center ring plate, the other end of each fan-shaped air deflector extends into the ash conveying pipeline in front of the blanking position of the ash hopper of the dust remover, and the end part of each fan-shaped air deflector is provided with a support rod fixedly connected with the inner side wall of the ash conveying pipeline.
Furthermore, the number of the fan-blade-shaped air deflectors is 4, and the fan-blade-shaped air deflectors are arranged along the circumferential direction of the circle center annular plate; the circle center ring plate is fixedly connected with the inner wall of the ventilation cylindrical plate through a connecting rod; the length of the ventilation cylindrical plate along the air supply direction of the ash conveying pipeline is not less than 0.3 m. By means of the arrangement, the circumferential wind can be buffered for a certain time and distance in the transmission direction.
Furthermore, the length of the air port of the hollow annular hole along the air supply direction of the ash conveying pipeline is equal to the length of the ventilation cylindrical plate on the ash conveying pipeline.
Furthermore, the length of the circle center ring plate along the air supply direction of the ash conveying pipeline is smaller than that of the ventilation cylindrical plate along the air supply direction of the ash conveying pipeline. So set up, the wind that is in ash conveying pipeline periphery can get into the fretwork ring opening wind gap of certain length when passing through fretwork ring opening wind gap, plays better drainage effect, and the wind that passes through centre of a circle crown plate position then directly passes through the wind gap of ring vent, centre of a circle ring and receives fan blade form aviation baffle and realize the dispersion, further makes the air current dispersion, disturbs the ash content of ash conveying pipeline. In addition, the end part of the fan-shaped air deflector is inclined towards the side wall of the ash conveying pipeline, and the end part of the fan-shaped air deflector is converged with the air flow of the air port of the hollow annular hole to further improve the purpose of blowing the air flow at the side wall position of the ash conveying pipeline, so that ash is conveyed while the side wall of the ash conveying pipeline is not easy to rapidly adhere to ash.
Furthermore, a plurality of air guide structures are arranged on the ash conveying pipeline at intervals. Comprises an ash conveying pipeline arranged in front of and behind the ash hopper blanking of the dust remover.
Furthermore, the casing is square casing, vibrate the piece including vibrating ball and spring part, link firmly the one end of spring part on the top surface of square casing inside wall, and/or bottom surface, the other end of spring part with vibrate the ball and link firmly.
Furthermore, vibrate the quantity of piece and be a plurality of, each vibrates the even interval setting of piece along casing length direction in square casing.
Furthermore, an arc surface shell is arranged on the outer side wall of the ash conveying pipeline in the shell in a sealing mode, and a steel ball is arranged in the arc surface shell.
Furthermore, the cambered surface shell is arranged on the outer side wall of the ash conveying pipeline between the oscillating pieces, and the cambered surface shell is arranged at intervals along the length direction of the ash conveying pipeline.
Furthermore, the oscillating ball is a solid steel ball.
Further, the controller is a PIC/STM controller.
The utility model has the advantages that:
the ash conveying structure of the thermal power plant boiler guides the straight-flow air flow in the existing ash conveying pipeline into dispersed air flow by arranging the air guide structure, improves the air flow strength in the circumferential direction of the ash conveying pipeline, can better disturb dust conveyed in the ash conveying pipeline, and avoids the problems that the dust is gradually attached to the side wall of the ash conveying pipeline and accumulates at the rear section of the ash conveying pipeline along with the extension of the conveying distance; meanwhile, the anti-blocking and anti-dust-deposition structure is matched, and the dust-deposition device is used periodically or when the sensor senses pressure change, so that dust deposition at the rear section of the dust conveying pipeline can be removed, the phenomenon of dust blockage in the pipeline is further avoided, and normal work of equipment and units is ensured.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a side view of the wind guide structure shown in fig. 1;
FIG. 3 is a schematic view of the structure of FIG. 1 for preventing blocking and dust deposition;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 for preventing block and dust deposition.
The device comprises a dust collector ash hopper 1, an ash storehouse 2, an ash conveying pipeline 3, an air supply device 4, a ventilation cylindrical plate 5, a hollow annular hole air opening 6, a circular ring air opening 7, a circular ring plate 8, a leaf-shaped air deflector 9, a support rod 10, a shell 11, a vibration ball 12, a spring part 13, a vibrator 14, a pressure sensor 15, a connecting rod 16, an arc shell 17, a steel ball 18 and a cylindrical partition plate 19.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention is explained in detail through the following embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-3, the ash conveying structure of the thermal power plant boiler comprises a dust collector ash bucket 1, an ash storage 2 and an ash conveying pipeline 3 connected between the dust collector ash bucket and the ash storage; an air supply device 4 is arranged on one side of the ash conveying pipeline close to an ash hopper of the dust remover, the air supply device is a high-pressure air feeder, and an air guide structure is arranged in the ash conveying pipeline close to the air supply device; the air guide structure is a ventilation cylindrical plate 5 fixedly arranged on the inner side wall of the ash conveying pipeline, the outer side wall of the ventilation cylindrical plate is hermetically fixed with the inner side wall of the ash conveying pipeline, and the ventilation cylindrical plate is a cylindrical ventilation channel structure with a certain length along the air supply direction of the ash conveying pipeline; a hollow annular hole air port 6 is arranged on the periphery in the ventilation cylindrical plate, an annular vent 7 is arranged on the ventilation cylindrical plate on the inner side of the hollow annular hole air port, and a cylindrical partition plate 19 is arranged between the hollow annular hole air port and the annular vent; a circle center ring plate 8 is supported at the circle center position of the circular ring ventilation opening; the circle center ring plate is fixedly connected with the inner wall of the ventilation cylindrical plate through a connecting rod 16; the cylindrical partition plate for forming the air opening of the hollow annular hole and the annular ventilation opening is also supported and fixed by the connecting rod 16; the circle center ring plate is provided with a fan-shaped air deflector 9, the fan-shaped air deflector is gradually inclined towards the side wall of the ash conveying pipeline along the air supply direction of the ash conveying pipeline, one end of each fan-shaped air deflector is fixed on the outer side of the circle center ring plate 8, the other end of each fan-shaped air deflector extends into the ash conveying pipeline in front of the blanking position of the ash hopper of the dust remover, and the end part of each fan-shaped air deflector is provided with a support rod 10 fixedly connected with the inner side wall of the ash conveying pipeline.
The anti-blocking and anti-deposition structure is arranged at one end, close to the ash storehouse, of the ash conveying pipeline and comprises a shell 11 which is fixedly sleeved on the outer side of the ash conveying pipeline, the shell is a square shell, and the front side wall and the rear side wall of the square shell are fixedly connected with the outer side wall of the ash conveying pipeline in a sealing mode. Set up in square housing and vibrate the piece, vibrate the piece including vibrating ball 12 and spring part 13, vibrate the ball and be solid steel ball, link firmly the one end of spring part on square housing upper and lower inside wall, the other end of spring part with it links firmly to vibrate the ball. Vibrate the quantity of piece and be a plurality of, each vibrates the even interval setting of piece along casing length direction in square casing.
A vibrator 14 is provided above the square housing. A pressure sensor 15 is arranged on the inner side wall of the ash conveying pipeline between the square shell and the ash storehouse; a controller is also arranged on the ash conveying pipeline; the vibrator and the pressure sensor are respectively and electrically connected with the controller.
When the dust collector is used, the air supply device 4 is started, air of the high-pressure air supply blower is blown into the air inlet end of the dust conveying pipeline 3 through the pipeline, and the entering air blows dust falling from the dust hopper of the dust collector to the dust storehouse 2 along the dust conveying pipeline. The air entering the ash conveying pipeline is firstly dispersed and divided by the air deflectors, specifically, when the air passes through the ventilation cylindrical plate 5, a part of air is concentrated at the position of the air opening 6 of the hollowed-out ring hole and blown along the direction close to the side wall of the ash conveying pipeline, the air passing through the positions of the ring air opening 7 and the circle center ring plate 8 is influenced by the structure at the position, the air passing through the position of the ring air opening 7 is influenced by the gradual inclination of the fan-blade-shaped air deflector on the circle center ring plate 8 and can be changed from a straight-flow mode to a position gradually close to the side wall of the ash conveying pipeline, and the air blown out from the air opening 6 of the hollowed-out ring hole are converged at the rear end of the fan-blade-shaped air deflector, so that the blowing. At the back end of defeated grey pipeline, because the extension of circuit, wind-force exists weakens the phenomenon, therefore, through opening vibrator 14, drive the vibration of 11 certain degrees of casing, and because vibrate the connected mode of ball and spring part in the casing, under the vibrator effect, the spring part promotes and vibrates the ball and collide with defeated grey pipeline lateral wall, compression and resilience through the spring part then, the realization is vibrated the ball and is strikeed with defeated grey pipeline's collision, clear away adnexed material in this section pipeline, avoid gathering or arouse the jam.
The pressure sensor can more accurately detect the material adhesion condition at the rear end of the ash conveying pipeline, and if the pressure sensor starts to operate, the vibrator is not started; the pressure sensor can sense the air pressure in the ash conveying pipeline in real time, when the sensing value is reduced to the set value of the controller, the controller controls the vibrator 14 to be opened, further the ash accumulation in the ash conveying pipeline is avoided, and the effect of cleaning the pipe wall of the ash conveying pipeline is achieved.
Example 2
As shown in fig. 4 to 5, the ash conveying structure of a thermal power plant boiler is the same as that of embodiment 1, except that an arc surface shell 17 is further hermetically arranged on the outer side wall of the ash conveying pipeline between the oscillating members arranged at the upper and lower parts in the shell, and a steel ball 18 is arranged in the arc surface shell. The cambered surface shells are arranged at intervals along the length direction of the ash conveying pipeline.
Due to the arrangement of the cambered surface shell and the steel balls in the cambered surface shell, when the vibrator vibrates to cause the vibration of the oscillating piece in the shell to vibrate and knock the ash conveying pipeline, the steel balls in the cambered surface shell can move to a certain degree, and the space where the steel balls are located is a cambered surface, so that the contact and the collision with the side wall of the ash conveying pipeline are increased, and the ash attached removal of two phases of the ash conveying pipeline to the outer side wall is further promoted.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (9)
1. A boiler ash conveying structure of a thermal power plant comprises a dust remover ash bucket, an ash storehouse and an ash conveying pipeline connected between the dust remover ash bucket and the ash storehouse,
an air supply device is arranged at one end of the ash conveying pipeline close to an ash hopper of the dust remover, and an air guide structure is arranged in the ash conveying pipeline close to the air supply device;
an anti-blocking and anti-deposition structure is arranged on one end, close to the ash storehouse, of the ash conveying pipeline, and a pressure sensor is arranged on the inner side wall of the ash conveying pipeline between the anti-blocking and anti-deposition structure and the ash storehouse; the pressure sensor is electrically connected with a controller;
the anti-blocking and anti-dust-deposition structure comprises a shell fixedly sleeved on the outer side of the dust conveying pipeline, a vibration piece is arranged in the shell, and vibrators are arranged above and/or below the shell; the vibrator is electrically connected with the controller.
2. The ash conveying structure of the thermal power plant boiler as claimed in claim 1, wherein the air supply device is a high pressure air supply device connected to one end of the ash conveying pipeline;
the air guide structure is arranged on one side, close to the high-pressure air feeder, in the ash conveying pipeline; the air guide structure is a ventilation cylindrical plate fixedly arranged on the inner side wall of the ash conveying pipeline, a hollow annular hole air port is arranged on the periphery of the inner part of the ventilation cylindrical plate, an annular vent hole is arranged on the ventilation cylindrical plate on the inner side of the hollow annular hole, and a circle center annular plate is supported at the circle center position of the annular vent hole; the circle center ring plate is provided with fan-shaped air deflectors which are obliquely arranged towards the side wall of the ash conveying pipeline along the air supply direction of the ash conveying pipeline, one end of each fan-shaped air deflector is fixed on the outer side of the circle center ring plate, the other end of each fan-shaped air deflector extends into the ash conveying pipeline in front of the blanking position of the ash hopper of the dust remover, and the end part of each fan-shaped air deflector is provided with a support rod fixedly connected with the inner side wall of the ash conveying pipeline.
3. The thermal power plant boiler ash conveying structure of claim 2, wherein the number of the fan-shaped air deflectors is 4, and the number of the fan-shaped air deflectors is 4; the circle center ring plate is fixedly connected with the inner side wall of the ventilation cylindrical plate through a connecting rod; the length of the ventilation cylindrical plate along the air supply direction of the ash conveying pipeline is not less than 0.3 m.
4. The thermal power plant boiler ash conveying structure of claim 3, wherein the length of the circle center ring plate in the air supply direction of the ash conveying pipeline is smaller than the length of the ventilation cylindrical plate in the air supply direction of the ash conveying pipeline.
5. The thermal power plant boiler ash conveying structure of claim 1, wherein the air guide structure is arranged on the ash conveying pipeline at intervals.
6. The thermal power plant boiler ash conveying structure as claimed in claim 1, wherein the housing is a square housing, the oscillating member comprises an oscillating ball and a spring member, one end of the spring member is fixedly connected to the top surface and/or the bottom surface of the inner side wall of the square housing, and the other end of the spring member is fixedly connected to the oscillating ball.
7. The thermal power plant boiler ash conveying structure as claimed in claim 6, wherein the number of the oscillating members is plural, and the oscillating members are uniformly spaced in the square housing along the length direction of the housing.
8. The thermal power plant boiler ash conveying structure as claimed in claim 6, wherein an arc surface shell is further hermetically arranged on the outer side wall of the ash conveying pipeline in the shell, and a steel ball is arranged in the arc surface shell.
9. The thermal power plant boiler ash conveying structure of claim 6, wherein the oscillating ball is a solid steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021272388.8U CN212668549U (en) | 2020-07-01 | 2020-07-01 | Boiler ash conveying structure of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021272388.8U CN212668549U (en) | 2020-07-01 | 2020-07-01 | Boiler ash conveying structure of thermal power plant |
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| CN212668549U true CN212668549U (en) | 2021-03-09 |
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| CN202021272388.8U Active CN212668549U (en) | 2020-07-01 | 2020-07-01 | Boiler ash conveying structure of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283376A (en) * | 2022-08-10 | 2022-11-04 | 英诺威阀业有限公司 | Slurry valve special for shield machine |
-
2020
- 2020-07-01 CN CN202021272388.8U patent/CN212668549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283376A (en) * | 2022-08-10 | 2022-11-04 | 英诺威阀业有限公司 | Slurry valve special for shield machine |
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