CN215062190U - Hot primary air bypass device of coal-fired power plant boiler - Google Patents
Hot primary air bypass device of coal-fired power plant boiler Download PDFInfo
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- CN215062190U CN215062190U CN202120895271.3U CN202120895271U CN215062190U CN 215062190 U CN215062190 U CN 215062190U CN 202120895271 U CN202120895271 U CN 202120895271U CN 215062190 U CN215062190 U CN 215062190U
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Abstract
The utility model relates to the technical field of primary air, and discloses a hot primary air bypass device of a coal-fired power plant boiler, which comprises a main body; one end of the main body is fixedly provided with a blowing device for generating primary air, and the other end of the main body is fixedly provided with a coal powder bin for generating primary air and coal powder with the blowing device; main part top fixed mounting has the pipeline, and the inside of pipeline is fixed and is being had the wind-force adjusting part who is used for controlling wind-force, and has seted up the notch on one side of the pipeline, and both ends install the sleeve pipe about the notch, wind-force adjusting part one end is passed through the outside pipeline outside extension of notch, the utility model discloses a wind-force adjusting part at pipeline inside controls wind-force size, when making it reciprocate by the control ring to close and expand the effect in wind gap through connecting rod pulling adjusting blade receipts, make inside wind pressure grow after the wind gap reduces, make buggy and its intensive mixing, thereby pass through the wind gap that adjusting blade formed at a wind, thereby play the big or small mesh of fire in the control furnace.
Description
Technical Field
The utility model relates to a wind technical field specifically is a hot primary air bypass device of coal fired power plant boiler.
Background
When a coal-fired boiler pulverizing system is arranged, in order to ensure the drying output of a third micro system, a certain safety coefficient is usually reserved for the hot primary air volume and the temperature; meanwhile, in order to control the air-powder temperature at the outlet of the coal mill (the safety and explosion-proof requirements of a powder preparation system), cold primary air bypass devices are designed for the powder preparation system. When the temperature of the coal mill outlet air dust is higher, an air door of a large primary air and cold air bypass is opened, the flow of the cold primary air is increased, the inlet air temperature of the coal mill is reduced, and the purpose of controlling the temperature of the coal mill outlet air dust is achieved.
When the existing device sends coal by hot primary air, the size of an air port is consistent, the density of pulverized coal and air is better when the wind power is small, the fire of a boiler is reduced due to the small wind power, if the wind power is larger, the mixing degree is reduced when the pulverized coal is sent, and the combustion of the boiler is also influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a hot primary air bypass device of coal fired power plant boiler has the buggy and mixes advantages such as effectual, has solved the problem that the buggy degree of mixing is low.
(II) technical scheme
For realizing the effectual purpose of above-mentioned powder mixture, the utility model provides a following technical scheme: a hot primary air bypass device of a coal-fired power plant boiler comprises a main body; one end of the main body is fixedly provided with a blowing device for generating primary air, and the other end of the main body is fixedly provided with a coal powder bin for generating primary air and coal powder with the blowing device;
the top of the main body is fixedly provided with a pipeline, the interior of the pipeline is fixedly provided with a wind power adjusting assembly for controlling wind power, a notch is formed in one side of the pipeline, and sleeves are arranged at the upper end and the lower end of the notch;
wind-force adjusting part one end passes through the notch and extends to the outside of outer pipeline to cup joint in the threaded rod outside, threaded rod fixed mounting is on the output of motor, and the motor is fixed in the support frame upper end, support frame fixed mounting is at the top surface of main part.
Preferably, the wind power adjusting assembly comprises an adjusting blade, a control ring, a sleeving ring, a connecting block, a connecting rod, a telescopic plate, a supporting rod, a threaded sleeve and a limiting rod, wherein the outer side of the adjusting blade is fixed with the connecting block, the connecting block is rotatably connected with the connecting rod, and the other end of the connecting rod is rotatably connected to the inner side of the control ring;
the bottom of the adjusting blade is rotatably connected with a telescopic plate, and the telescopic plate is sleeved on the inner side of the sleeving ring in a sliding mode.
Preferably, one side fixed mounting of control ring has the bracing piece, bracing piece middle part fixed mounting has the gag lever post, and one end fixed mounting has the screw thread sleeve pipe.
Preferably, the number of the adjusting blades is four, the adjusting blades are distributed on the inner side of the pipeline in an annular mode, the sleeve joint ring is located on the inner side of the pipeline and attached to the top surface of the main body, the limiting rod is sleeved inside the sleeve in a sliding mode, and the threaded sleeve is sleeved on the outer side of the threaded rod in a sliding mode.
Preferably, the support frame is positioned on one side of the pipeline.
(III) advantageous effects
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. the utility model discloses a wind-force adjusting part at the pipeline inside controls wind-force size, when making it reciprocate by the control ring to receive and expand the effect in wind gap through connecting rod pulling regulation leaf, make inside wind pressure grow after the wind gap reduces, make buggy and its intensive mixing, thereby wind through the wind gap that the regulation leaf formed at a wind, thereby play the big or small purpose of fire in the control furnace.
2. The utility model discloses a threaded sleeve that the bracing piece is connected is passed through in control ring one end to rotate with threaded sleeve by the electric machine control threaded rod and be connected, make threaded sleeve realize the effect that reciprocates according to turning to.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the detailed structure of the pipeline of the present invention;
fig. 4 is an explosion structure diagram of the wind power adjusting assembly of the present invention.
In the figure: 1. a main body; 2. a blowing device; 3. a pulverized coal bunker; 4. a pipeline; 5. a wind power adjustment assembly; 501. regulating the leaves; 502. a control loop; 503. a sleeving connection ring; 504. connecting blocks; 505. a connecting rod; 506. a retractable plate; 507. a support bar; 508. a threaded bushing; 509. a limiting rod; 6. a support frame; 7. a motor; 8. a threaded rod; 9. a sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the hot primary air bypass device of the coal-fired power plant boiler comprises a main body 1; one end of the main body 1 is fixedly provided with a blowing device 2 for generating primary air, and the other end of the main body is fixedly provided with a pulverized coal bin 3 for generating primary air and pulverized coal together with the blowing device 2;
a pipeline 4 is fixedly installed at the top of the main body 1, a wind power adjusting assembly 5 for controlling wind power is fixed inside the pipeline 4, a notch is formed in one side of the pipeline 4, and sleeves 9 are installed at the upper end and the lower end of the notch;
wind-force adjusting part 5 one end is passed through the notch and is extended in the outside of outside pipeline 4 to cup joint in the 8 outsides of threaded rod, 8 fixed mounting of threaded rod are on the output of motor 7, and motor 7 fixes in 6 upper ends of support frame, and 6 fixed mounting of support frame are at the top surface of main part 1, and support frame 6 is used for fixed motor 7, thereby be convenient for motor 7 to drive threaded rod 8 and the size of 5 cooperation work control boiler fires of wind-force adjusting part.
In order to realize the purpose of control air outlet leaf size, its characterized in that: the wind power adjusting assembly 5 comprises an adjusting blade 501, a control ring 502, a socket ring 503, a connecting block 504, a connecting rod 505, a telescopic plate 506, a supporting rod 507, a threaded sleeve 508 and a limiting rod 509, wherein the outer side of the adjusting blade 501 is fixed on the connecting block 504, the connecting block 504 is rotatably connected with the connecting rod 505, and the other end of the connecting rod 505 is rotatably connected to the inner side of the control ring 502;
the bottom of adjusting leaf 501 rotates and is connected with expansion plate 506, and expansion plate 506 slides and cup joints at the bell and spigot ring 503 inboard, and one side fixed mounting of control ring 502 has bracing piece 507, and bracing piece 507 middle part fixed mounting has gag lever post 509, and one end fixed mounting has threaded sleeve 508, through pulling connecting rod 505 when the control lever reciprocates, when connecting rod 505 received the pulling force, thereby drive adjusting leaf 501 receipts to receive the extension.
Further for the purpose that realizes control regulation leaf 501, regulation leaf 501 quantity is four, and it is inboard at pipeline 4 to be annular distribution, the bell and spigot ring 503 is located pipeline 4 inboard and the laminating is at main part 1 top surface, gag lever post 509 slides and cup joints inside sleeve pipe 9, threaded sleeve pipe 508 slides and cup joints in the threaded rod 8 outside, normal running fit through threaded rod 8 and threaded sleeve pipe 508, thereby drive control ring 502 and reciprocate, cup joint gag lever post 509 in sleeve pipe 9 inside simultaneously and can play the effect of location, can avoid the air to leak simultaneously.
The support frame 6 is positioned at one side of the pipeline 4.
The working principle is as follows: this kind of hot primary air bypass device of coal fired power plant boiler, it burns to need leading-in primary air when burning the boiler, at this moment be convenient for drive threaded rod 8 through motor 7 and rotate, make the threaded sleeve 508 that cup joints in the outside slide from top to bottom, drive gag lever post 509 in the same time and slide in sleeve 9, the other end fixed mounting of bracing piece 507 is in the one end of control ring 502 when removing, and can stimulate connecting rod 505 when control ring 502 reciprocates, just can stimulate behind the pulling force when connecting rod 505 receives the extension of pulling force 501 outside or closed, thereby play the purpose in regulation wind gap, make its inside wind-force grow, the primary air that blast apparatus 2 blew off is convenient for mix with the buggy in buggy storehouse 3, thereby leading-in coal fired power plant's boiler.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A hot primary air bypass device of a coal-fired power plant boiler comprises a main body (1);
the method is characterized in that:
one end of the main body (1) is fixedly provided with a blowing device (2) for generating primary air, and the other end of the main body is fixedly provided with a coal powder bin (3) for generating primary air and coal powder with the blowing device (2);
a pipeline (4) is fixedly installed at the top of the main body (1), a wind power adjusting assembly (5) for controlling wind power is fixed inside the pipeline (4), a notch is formed in one side of the pipeline (4), and sleeves (9) are installed at the upper end and the lower end of the notch;
wind-force adjusting part (5) one end is passed through the notch and is extended outside pipeline (4) to cup joint in the threaded rod (8) outside, threaded rod (8) fixed mounting is on the output of motor (7), and motor (7) are fixed in support frame (6) upper end, support frame (6) fixed mounting is at the top surface of main part (1).
2. The coal-fired utility boiler hot primary air bypass device of claim 1, characterized in that: the wind power adjusting assembly (5) comprises an adjusting blade (501), a control ring (502), a socket ring (503), a connecting block (504), a connecting rod (505), a telescopic plate (506), a supporting rod (507), a threaded sleeve (508) and a limiting rod (509), wherein the outer side of the adjusting blade (501) is fixed on the connecting block (504), the connecting block (504) is rotatably connected with the connecting rod (505), and the other end of the connecting rod (505) is rotatably connected to the inner side of the control ring (502);
the bottom of the adjusting blade (501) is rotatably connected with a telescopic plate (506), and the telescopic plate (506) is sleeved on the inner side of the sleeving ring (503) in a sliding mode.
3. The coal-fired utility boiler hot primary air bypass device of claim 2, characterized in that: one side fixed mounting of control ring (502) has bracing piece (507), bracing piece (507) middle part fixed mounting has gag lever post (509), and one end fixed mounting has threaded sleeve pipe (508).
4. The coal-fired utility boiler hot primary air bypass device of claim 2, characterized in that: the number of the adjusting blades (501) is four, the adjusting blades are distributed on the inner side of the pipeline (4) in an annular mode, the sleeving and connecting ring (503) is located on the inner side of the pipeline (4) and attached to the top surface of the main body (1), the limiting rod (509) is sleeved in the sleeve (9) in a sliding mode, and the threaded sleeve (508) is sleeved on the outer side of the threaded rod (8) in a sliding mode.
5. The coal-fired utility boiler hot primary air bypass device of claim 1, characterized in that: the support frame (6) is positioned on one side of the pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895271.3U CN215062190U (en) | 2021-04-28 | 2021-04-28 | Hot primary air bypass device of coal-fired power plant boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895271.3U CN215062190U (en) | 2021-04-28 | 2021-04-28 | Hot primary air bypass device of coal-fired power plant boiler |
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| CN215062190U true CN215062190U (en) | 2021-12-07 |
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| CN202120895271.3U Active CN215062190U (en) | 2021-04-28 | 2021-04-28 | Hot primary air bypass device of coal-fired power plant boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302080A (en) * | 2022-10-11 | 2022-11-08 | 四川智龙激光科技有限公司 | Convection type metal dust particle recovery device for material reducing machine tool |
-
2021
- 2021-04-28 CN CN202120895271.3U patent/CN215062190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302080A (en) * | 2022-10-11 | 2022-11-08 | 四川智龙激光科技有限公司 | Convection type metal dust particle recovery device for material reducing machine tool |
| CN115302080B (en) * | 2022-10-11 | 2023-01-17 | 四川智龙激光科技有限公司 | Convection type metal dust particle recovery device for material reducing machine tool |
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