CN214467611U - Boiler induced draft fan for power plant - Google Patents
Boiler induced draft fan for power plant Download PDFInfo
- Publication number
- CN214467611U CN214467611U CN202022751774.1U CN202022751774U CN214467611U CN 214467611 U CN214467611 U CN 214467611U CN 202022751774 U CN202022751774 U CN 202022751774U CN 214467611 U CN214467611 U CN 214467611U
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- CN
- China
- Prior art keywords
- induced draft
- draft fan
- power plant
- lifting device
- boiler induced
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000670 limiting effect Effects 0.000 claims description 22
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本实用新型提供了一种发电厂用锅炉引风机，尤其涉及一种可升降和减震的发电厂用锅炉引风机。该引风机包括引风机主体、设于所述引风机主体下方的减震组件和设于所述减震组件下方的升降装置。该引风机具有高度可调节、减震且垂直方向稳定、可移动等优点，设计简单，操作方便省力，适于大规模推广应用。
The utility model provides a boiler induced draft fan for a power plant, in particular to a boiler induced draft fan for a power plant that can be raised and lowered and damped. The induced draft fan comprises a main body of the induced draft fan, a shock absorbing assembly arranged under the main body of the induced draft fan, and a lifting device arranged below the shock absorbing assembly. The induced draft fan has the advantages of adjustable height, shock absorption, stable vertical direction, movable, etc. The design is simple, the operation is convenient and labor-saving, and it is suitable for large-scale popularization and application.
Description
Technical Field
The utility model relates to a boiler draught fan is used in power plant especially relates to a boiler draught fan is used in liftable and absorbing power plant.
Background
The induced draft fan is a device which generates negative pressure through the rotation of an impeller and then extracts air from a system (device), and is generally installed at the tail end of a boiler and used for extracting hot flue gas in a hearth. The induced draft fan is an important auxiliary machine of a boiler of a thermal power plant, and mainly discharges high-temperature flue gas combusted in the boiler to form a negative-pressure environment in the boiler.
Ordinary draught fan most all the structure is fixed, consequently is more troublesome when being connected the use with the equipment of co-altitude, and general draught fan produces vibrations very easily when using simultaneously, leads to the spare part of draught fan to receive the damage easily, influences the life of equipment, and current draught fan all is heavier moreover, very not convenient for remove.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a boiler draught fan is used in power plant has height-adjustable festival, shock attenuation and vertical direction advantage such as stable, portable, and the design is simple, and convenient operation is laborsaving, is suitable for extensive popularization and application.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a boiler draught fan for power plant, includes the draught fan main part, locates the damper assembly of draught fan main part below with locate the elevating gear of damper assembly below.
And a displacement device is also arranged below the lifting device. Preferably, the displacement device comprises a universal wheel and a brake pad arranged on the universal wheel.
The lifting device is a scissor rod lifting device, the lower end of the scissor rod lifting device is connected with the displacement device in a combined mode through a base, and the upper end of the scissor rod lifting device is connected with the damping assembly in a combined mode through a fixing plate.
The base and the fixing plate are both concave; the concave part of the fixed plate is provided with a limiting rod, and the upper end of the scissor rod lifting device is connected with the limiting rod in a sliding manner through two sliding blocks; the concave part of the base is provided with a bidirectional screw rod, and the lower end of the scissor rod lifting device is in threaded connection with the bidirectional screw rod through two screw blocks.
Preferably, the surface of the limiting rod is provided with a wear-resistant layer.
Further, the position that two-way lead screw was established to the concave part partial shipment of base is equipped with the motor to the drive two-way lead screw rotates, the motor surface is equipped with the shock pad.
Still be equipped with the bottom plate between draught fan main part and the damper assembly, damper assembly is including supporting the sliding sleeve between fixed plate and bottom plate and locating the spring of sliding sleeve periphery.
The sliding sleeve comprises a plurality of sleeves arranged at the upper end of the fixing plate and fixing columns arranged at the lower end of the bottom plate and corresponding to the sleeves.
The lower extreme of fixed column all is equipped with and is located the second limiting plate in the sleeve.
A plurality of sleeves are arranged on the base and positioned on two sides of the scissor rod lifting device, and telescopic columns in sliding connection with the sleeves are arranged below the fixing plate.
The lower extreme of flexible post is equipped with the first limiting plate that is located the cover pipe.
The application provides a boiler draught fan for power plant compares prior art, has following beneficial effect:
(1) the motor drives the bidirectional screw rod to rotate, so that the bidirectional screw rod pushes the two screw blocks to move oppositely or oppositely at the same time, the two screw blocks drive the scissor rod to expand or retract, and the scissor rod drives the draught fan main body on the fixing plate to move up and down, so that the height of the draught fan main body can be adjusted, the device can be butted with boilers with different heights for use as required, and the applicability of the device is wider; meanwhile, the sleeve and the telescopic column device are used for assisting, so that the stability in the vertical direction can be better kept.
(2) When the induced draft fan main body is vibrated in the using process, the vibration generated by a part of the induced draft fan main body can be buffered through the elastic force action of the plurality of groups of springs, so that the damage of the parts caused by the severe vibration of the device is prevented, and the service life of the device is prevented from being influenced; meanwhile, the sleeve and the fixing column device are used for assisting, so that the stability of the vertical direction can be better kept.
(3) When the device is required to be moved, a user can push the device to move through the universal wheels, and meanwhile, the universal wheels can be stopped and fixed through the brake pads, so that the device is not required to be carried by a large amount of manpower and material resources, and the device is greatly convenient to transfer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a boiler induced draft fan for power plants according to the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Description of reference numerals:
1. the device comprises a base, 2, a fixing plate, 3, a first groove, 4, a second groove, 5, a scissor rod, 6, a screw block, 7, a bidirectional screw rod, 8, a motor, 9, a sliding block, 10, a limiting rod, 11, a sleeve, 12, a telescopic column, 13, a first limiting plate, 14, a bottom plate, 15, a draught fan main body, 16, a sleeve, 17, a fixing column, 18, a second limiting plate, 19, a spring, 20, a universal wheel, 21 and a brake pad.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Example 1
A boiler draught fan for a power plant is shown in figures 1 and 2 and comprises a base 1, a fixing plate 2 is arranged above the base 1, a bottom plate 14 is arranged above the fixing plate 2, a draught fan main body 15 is arranged on the bottom plate 14, the bottom plate 14 is fixed at the upper end of the fixing plate 2 through a damping assembly, a scissor rod 5 is arranged between the base 1 and the fixing plate 2, a first groove 3 is arranged at the upper end of the base 1, a second groove 4 is arranged at the lower end of the fixing plate 2, screw blocks 6 located in the first groove 3 are arranged on two sides of the lower end of the scissor rod 5, a bidirectional screw rod 7 rotatably connected with the base 1 is arranged in the first groove 3, the screw blocks 6 are in threaded connection with the bidirectional screw rod 7, one end of the bidirectional screw rod 7 is fixedly connected with an output end of a motor 8 arranged in the base 1, and sliders 9 in sliding connection with the second groove 4 are arranged on two sides of the upper end of the scissor rod 5, a limiting rod 10 connected with a sliding block 9 in a sliding manner is arranged in the second groove 4, when the device is required to be connected with a boiler for use, a motor 8 drives a bidirectional screw rod 7 to rotate, the bidirectional screw rod 7 pushes two screw blocks 6 to do opposite motion simultaneously through threaded connection with the two screw blocks 6, so that the two screw blocks 6 drive a scissor rod 5 to unfold, and simultaneously the sliding block 9 at the upper end of the scissor rod 5 moves towards two ends of the limiting rod 10, so that a fixing plate 2 can be pushed to move downwards through the scissor rod 5, when the motor 8 drives the bidirectional screw rod 7 to rotate reversely, the bidirectional screw rod 7 can push the two screw blocks 6 to do opposite motion simultaneously, so that the scissor rod 5 retracts to drive the fixing plate 2 to move upwards, so that a draught fan main body 15 can be pushed to move upwards and downwards through the scissor rod 5, the height of the draught fan main body 15 is adjusted, and the device can be butted with boilers with different heights as required for use, the device has wider applicability.
The damping assembly comprises a plurality of sleeves 16 arranged at the upper end of the fixing plate 2, fixing columns 17 corresponding to the sleeves 16 are arranged at the lower end of the bottom plate 14, the fixing columns 17 are connected with the sleeves 16 in a sliding mode, second limiting plates 18 located in the sleeves 16 are arranged at the lower ends of the fixing columns 17, springs 19 are wound on the sleeves 16, when the draught fan main body 15 is vibrated in the using process, the draught fan main body 15 can drive the bottom plate 14 to vibrate and extrude the bottom plate 14 to shake up and down, the fixing columns 17 retract into the sleeves 16, and the springs 19 are extruded through the bottom plate 14, so that vibration generated by a part of the draught fan main body 15 can be buffered through the elastic force action of the plurality of groups of springs 19, damage to parts due to severe vibration of the device is prevented, and the service life of the device is prolonged;
the upper end of base 1 is equipped with the sleeve pipe 11 that is located 5 both sides of scissors pole, the lower extreme of fixed plate 2 is equipped with the flexible post 12 with sleeve pipe 11 sliding connection, the lower extreme of flexible post 12 is equipped with the first limiting plate 13 that is located sleeve pipe 11, and when fixed plate 2 reciprocated like this, flexible post 12 and first limiting plate 13 will slide in sleeve pipe 11, and limiting effect through a plurality of flexible posts 12 and sleeve pipe 11 sliding connection just so can make more steady that fixed plate 2 removed.
The lower extreme of base 1 is equipped with universal wheel 20, be equipped with brake block 21 on the universal wheel 20, like this when needs remove the device, the user just can promote the device through universal wheel 20 and remove, can stop universal wheel 20 through brake block 21 simultaneously and die fixedly, just so need not consume a large amount of manpower and materials and carry the device, great convenience the device's transfer.
The surface of the limiting rod 10 is provided with a wear-resistant layer, so that the limiting rod 10 can be prevented from being abraded due to long-time friction, and the service life of the device is prevented from being influenced.
The surface of the motor 8 is provided with a shock pad, so that the vibration generated when the motor 8 operates can be reduced, and the motor 8 is prevented from driving the bidirectional screw rod 7 to violently vibrate to cause abrasion to threads on the bidirectional screw rod 7.
Claims (8)
1. A boiler induced draft fan for a power plant is characterized by comprising an induced draft fan main body, a damping component arranged below the induced draft fan main body and a lifting device arranged below the damping component;
a displacement device is also arranged below the lifting device;
the lifting device is a scissor rod lifting device, the lower end of the scissor rod lifting device is connected with the displacement device in a combined mode through a base, and the upper end of the scissor rod lifting device is connected with the damping assembly in a combined mode through a fixing plate.
2. The power plant boiler induced draft fan according to claim 1, wherein the displacement device comprises a universal wheel and a brake pad arranged on the universal wheel.
3. The power plant boiler induced draft fan according to claim 1, wherein the base and the fixing plate are both concave; the concave part of the fixed plate is provided with a limiting rod, and the upper end of the scissor rod lifting device is connected with the limiting rod in a sliding manner through two sliding blocks; the concave part of the base is provided with a bidirectional screw rod, and the lower end of the scissor rod lifting device is in threaded connection with the bidirectional screw rod through two screw blocks.
4. The power plant boiler induced draft fan according to claim 3, wherein a bottom plate is further arranged between the induced draft fan main body and the damping assembly, and the damping assembly comprises a sliding sleeve supported between a fixing plate and the bottom plate and a spring arranged on the periphery of the sliding sleeve.
5. The power plant boiler induced draft fan according to claim 4, wherein the sliding sleeve comprises a plurality of sleeves arranged at the upper end of the fixing plate and fixing columns arranged at the lower end of the bottom plate and corresponding to the plurality of sleeves.
6. The power plant boiler induced draft fan according to claim 5, wherein the lower ends of the fixing columns are provided with first limiting plates located in the sleeves.
7. The power plant boiler induced draft fan according to any one of claims 3 to 6, wherein a plurality of sleeves are arranged on the base and positioned on two sides of the scissor rod lifting device, and telescopic columns which are in sliding connection with the sleeves are arranged below the fixing plates.
8. The power plant boiler induced draft fan according to claim 7, wherein the lower end of the telescopic column is provided with a second limiting plate positioned in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751774.1U CN214467611U (en) | 2020-11-24 | 2020-11-24 | Boiler induced draft fan for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751774.1U CN214467611U (en) | 2020-11-24 | 2020-11-24 | Boiler induced draft fan for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214467611U true CN214467611U (en) | 2021-10-22 |
Family
ID=78183924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022751774.1U Expired - Fee Related CN214467611U (en) | 2020-11-24 | 2020-11-24 | Boiler induced draft fan for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214467611U (en) |
-
2020
- 2020-11-24 CN CN202022751774.1U patent/CN214467611U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |