CN207879702U - A kind of boiler centrifugal draught fan - Google Patents
A kind of boiler centrifugal draught fan Download PDFInfo
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- CN207879702U CN207879702U CN201820070796.1U CN201820070796U CN207879702U CN 207879702 U CN207879702 U CN 207879702U CN 201820070796 U CN201820070796 U CN 201820070796U CN 207879702 U CN207879702 U CN 207879702U
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- adjustable plate
- air inlet
- blast pipe
- casing
- air
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Abstract
The utility model is related to a kind of boiler centrifugal draught fans, including casing, driving device, impeller, telescopic blast pipe and air quantity adjusting mechanism, one end of telescopic blast pipe and the removable connection of the air inlet of casing, air quantity adjusting mechanism includes the first adjustable plate, second adjustable plate, Air Filter and regulation handle, first adjustable plate is arranged in the air inlet of casing, second adjustable plate is arranged in telescopic blast pipe, and first adjustable plate be close to the second adjustable plate, first adjustable plate is equipped with multiple first air inlet holes, second adjustable plate is equipped with multiple second air inlet holes, it is all covered with Air Filter at each second air inlet hole, on the tube wall of telescopic blast pipe regulating tank is equipped at corresponding second adjustable plate.The utility model has the beneficial effects that：The adjusting that can carry out air force, can be filtered flue gas, and Air Filter cleaning is very convenient.
Description
Technical field
The utility model is related to wind turbine technical field more particularly to a kind of boiler centrifugal draught fans.
Background technology
It uses coal and will produce flue gas in boiler combustion process, in order to not influence boiler combustion and normal operation, usually
Can centrifugal induced draught fan be installed on boiler to pump out the flue gas for using and being generated in coal combustion process.Since coal can be mingled in flue gas
Slag, during carrying out pump drainage using centrifugal induced draught fan, cinder can enter in centrifugal induced draught fan, after long time integration, can contract
The service life of short centrifugal induced draught fan, and in the prior art there is no being handled accordingly for the problem, in addition, existing
Centrifugal induced draught fan is unable to adjust air force when in use.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of boiler centrifugal draught fans, to overcome above-mentioned existing skill
Deficiency in art.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of boiler centrifugal draught fan, including casing,
Driving device, impeller, impeller are arranged in casing, and the output shaft of driving device is connected with impeller, further includes telescopic air inlet
Pipe and air quantity adjusting mechanism, one end of telescopic blast pipe and the removable connection of the air inlet of casing, air quantity adjusting mechanism include
First adjustable plate, the second adjustable plate, Air Filter and regulation handle, the first adjustable plate are arranged in the air inlet of casing, and second adjusts
It saves plate to be arranged in telescopic blast pipe, and the first adjustable plate is close to the second adjustable plate, the first adjustable plate is equipped with multiple first
Air inlet hole, the second adjustable plate are equipped with multiple second air inlet holes, are all covered with Air Filter at each second air inlet hole, it is telescopic into
On the tube wall of air hose regulating tank, the outer circumference surface of one end of regulation handle and the second adjustable plate are equipped at corresponding second adjustable plate
It is connected, the other end of regulation handle is reached after regulating tank except telescopic blast pipe, and the second adjustable plate and first is adjusted
Plate is saved when being relatively rotated, the second air inlet hole can overlapped or phase in the adjustable range of regulating tank with the first air inlet hole
Mutually it is staggered.
The utility model has the beneficial effects that：
1) by the way that air quantity adjusting mechanism is arranged in the air inlet of casing, so that boiler centrifugal draught fan was using
The adjusting of air force can be carried out in journey；
2) Air Filter is added in air quantity adjusting mechanism, flue gas can be filtered in this way, to avoid the coal in flue gas
Slag enters in casing, ensure that the service life of boiler centrifugal draught fan；
3) need clear up Air Filter when, the air inlet of telescopic blast pipe and casing can be unclamped, and it is telescopic into
One end that air hose is connected with boiler can need not unclamp, and then adjust telescopic blast pipe so that the second adjustable plate is exposed, tears open
The Air Filter on the second adjustable plate can be cleared up by unloading the second adjustable plate, very convenient, without move integrally from
Heart air-introduced machine.
Based on the above technical solution, the utility model can also do following improvement.
Further, air quantity adjusting mechanism further includes spacing ring, and spacing ring is arranged in the air inlet of casing, the first adjustable plate
With spacing ring detachable connection.
It is using above-mentioned further advantageous effect：The first adjustable plate of easy disassembly, while also can guarantee the first adjustable plate
Stability after installation.
Further, air quantity adjusting mechanism further includes screw rod and nut, the rotation center of one end of screw rod and the first adjustable plate
It is connected, the other end of screw rod is connect with nut thread, and the second adjustable plate is arranged between nut and the first adjustable plate, and second
The rotation center of adjustable plate is equipped with the via passed through for screw rod, and the second adjustable plate is close to first by the effect of screw rod and nut
Adjustable plate.
It is using above-mentioned further advantageous effect：It can be good at limiting the second adjustable plate, so that second is adjusted
Relative rotation between plate and the first adjustable plate is easily achieved, and the second adjustable plate is convenient in dismounting, in addition, can be very
Tightening degree between the second adjustable plate of simple adjustment and the first adjustable plate.
Further, it is connected by bolt between the air inlet of casing and telescopic blast pipe, the end of the air inlet of casing
Face is equipped with the first fan annular flange to match with bolt, and the end face of telescopic blast pipe is equipped with the to match with bolt
Two fan annular flanges.
It is using above-mentioned further advantageous effect：It is easy to the air inlet of telescopic blast pipe and casing being attached.
Further, set regulating tank is between two ends of the second fan annular flange on telescopic blast pipe, is adjusted
Slot runs through the end face that telescopic blast pipe is connected with air inlet.
It is using above-mentioned further advantageous effect：It is easy to open up regulating tank, while is also convenient for being mounted with regulation handle
The second adjustable plate dismounted.
Description of the drawings
Fig. 1 is the structural schematic diagram of boiler centrifugal draught fan described in the utility model；
Fig. 2 is the part-structure enlarged drawing of Fig. 1；
Fig. 3 is Fig. 1 part-structure sectional views；
Fig. 4 be Fig. 3 in A to part-structure schematic diagram；
Fig. 5 be Fig. 3 in B to part-structure schematic diagram；
Fig. 6 is part-structure enlarged drawing in Fig. 3.
In attached drawing, parts list represented by the reference numerals are as follows：
1, casing, the 110, air inlet, 120, first fan annular flange, 2, driving device, 3, telescopic blast pipe, 311, adjust
Save slot, the 312, second fan annular flange, 4, air quantity adjusting mechanism, the 410, first adjustable plate, the 411, first air inlet hole, 420, second
Adjustable plate, the 421, second air inlet hole, 430, Air Filter, 440, regulation handle, 450, spacing ring, 460, screw rod, 470, nut,
480, washer.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of boiler centrifugal draught fan, including casing 1, driving device 2,
Impeller, wherein impeller is arranged in casing 1, and the output shaft of driving device 2 is connected with impeller, in the present embodiment, driving dress
Mode that 2 driving impellers are rotated is set using existing mature technology.
Boiler centrifugal draught fan further includes telescopic blast pipe 3 and air quantity adjusting mechanism 4, wherein telescopic blast pipe 3
The 110 removable connection of air inlet of left end and casing 1, the right end of telescopic blast pipe 3 are connected with boiler, air quantity adjusting mechanism
4 include the first adjustable plate 410, the second adjustable plate 420, Air Filter 430 and regulation handle 440, the first adjustable plate 410 and casing 1
Air inlet 110 inner cavity section configuration and size it is identical, the first adjustable plate 410 is arranged in the air inlet 110 of casing 1,
Second adjustable plate 420 is arranged in telescopic blast pipe 3, and the first adjustable plate 410 is close to the second adjustable plate 420, and first is adjusted
Plate 410 be equipped with multiple first air inlet holes 411, the second adjustable plate 420 be equipped with multiple second air inlet holes 421, each second into
It is all covered with Air Filter 430 at air holes 421, is equipped with and adjusts at corresponding second adjustable plate 420 on the tube wall of telescopic blast pipe 3
Slot 311, one end of regulation handle 440 are connected with the outer circumference surface of the second adjustable plate 420, the other end warp of regulation handle 440
It is reached except telescopic blast pipe 3 after overregulating slot 311, the second adjustable plate 420 and the first adjustable plate 410 are carrying out opposite turn
When dynamic, the second air inlet hole 421 can be overlapped in the adjustable range of regulating tank 311 with the first air inlet hole 411 or be mutually staggered,
Wherein, the second air inlet hole 421 of so-called overlapped finger can be connected to the first air inlet hole 411, when connection, flue gas in boiler into
After entering into telescopic blast pipe 3, it can be entered in casing 1 after the second air inlet hole 421, the first air inlet hole 411, it is so-called
It mutually staggers the second air inlet hole 421 of finger not to be connected to the first air inlet hole 411, when not being connected to, the flue gas in boiler enters flexible
After in formula blast pipe 3, entered in casing 1 after cannot pass through the second air inlet hole 421, the first air inlet hole 411.
In the present embodiment, air quantity adjusting mechanism 4 further includes spacing ring 450, and the air inlet in casing 1 is arranged in spacing ring 450
In mouthfuls 110, wherein spacing ring 450 using being fixed in the air inlet 110 of casing 1 by the way of welding, the first adjustable plate 410 and
450 detachable connection of spacing ring, it is preferable that be connected by bolt between the first adjustable plate 410 and spacing ring 450.
In addition, air quantity adjusting mechanism 4 further includes screw rod 460 and nut 470, the left end of screw rod 460 and the first adjustable plate 410
Rotation center be connected, the right end of screw rod 460 is threadedly coupled with nut 470, the second adjustable plate 420 setting nut 470 with
Between first adjustable plate 410, and the rotation center of the second adjustable plate 420 is equipped with the via passed through for screw rod 460, that is, second adjusts
It saves plate 420 to be arranged on screw rod 460, and the second adjustable plate 420 is close to the first tune by the effect of screw rod 460 and nut 470
Plate 410 is saved, the diameter of nut 470 is more than the diameter of via.
Air quantity adjusting mechanism 4 further includes washer 480, and washer 480 is sleeved on screw rod 460, and washer 480 is in nut 470
Between the second adjustable plate 420, the diameter of washer 480 is more than the diameter of via, in addition, washer 480 and 420 phase of the second adjustable plate
Several balls are embedded on the end face of contact, in the present embodiment, the effect for increasing washer 480 and ball is to facilitate the second tune
Section plate 420 is rotated.
It is connected by bolt between the air inlet 110 of casing 1 and telescopic blast pipe 3, the air inlet 110 of casing 1
End face is equipped with the first fan annular flange 120 to match with bolt, and the end face of telescopic blast pipe 3 is equipped with and bolt phase
The the second fan annular flange 312 matched, in addition, set regulating tank 311 is in the second fan annular flange 312 on telescopic blast pipe 3
Two ends between, regulating tank 311 runs through the end face that is connected with air inlet 110 of telescopic blast pipe 3.In the present embodiment
In, telescopic blast pipe 3 is two-part structure, that is, includes the first blast pipe and the second blast pipe, wherein a left side for the first blast pipe
End is connected with the air inlet 110 of casing 1, and the right end of the first blast pipe is from the left end socket joint of the second blast pipe to the second blast pipe
It is interior.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (5)
1. a kind of boiler centrifugal draught fan, including casing (1), driving device (2), impeller, the impeller is arranged in the casing
(1) in, the output shaft of the driving device (2) is connected with the impeller, which is characterized in that further includes telescopic blast pipe
(3) and air quantity adjusting mechanism (4), one end of the telescopic blast pipe (3) and the air inlet (110) of the casing (1) are removable
Formula connects, and the air quantity adjusting mechanism (4) includes the first adjustable plate (410), the second adjustable plate (420), Air Filter (430) and adjusts
Handle (440) is saved, in the air inlet (110) of the casing (1), described second is adjusted for the first adjustable plate (410) setting
Plate (420) setting is in the telescopic blast pipe (3), and first adjustable plate (410) is close to second adjustable plate
(420), first adjustable plate (410) is equipped with multiple first air inlet holes (411), and second adjustable plate (420) is equipped with
Multiple second air inlet holes (421) are all covered with Air Filter (430), the telescopic blast pipe at each second air inlet hole (421)
(3) regulating tank (311), one end of the regulation handle (440) and institute are equipped at corresponding second adjustable plate (420) on tube wall
The outer circumference surface for stating the second adjustable plate (420) is connected, and the other end of the regulation handle (440) is after regulating tank (311)
It reaches except telescopic blast pipe (3), second adjustable plate (420) is carrying out relatively with first adjustable plate (410)
When rotation, the adjustable range interior energy phase of second air inlet hole (421) and first air inlet hole (411) in regulating tank (311)
Mutually it is overlapped or mutually staggers.
2. a kind of boiler centrifugal draught fan according to claim 1, which is characterized in that the air quantity adjusting mechanism (4) is also
Including spacing ring (450), in the air inlet (110) of the casing (1), described first is adjusted for spacing ring (450) setting
Plate (410) and the spacing ring (450) detachable connection.
3. a kind of boiler centrifugal draught fan according to claim 2, which is characterized in that the air quantity adjusting mechanism (4) is also
Including screw rod (460) and nut (470), the rotation center phase of one end of the screw rod (460) and first adjustable plate (410)
Connection, the other end of the screw rod (460) are threadedly coupled with the nut (470), and second adjustable plate (420) is arranged in institute
It states between nut (470) and first adjustable plate (410), and the rotation center of second adjustable plate (420) is equipped with for spiral shell
The via that bar (460) passes through, second adjustable plate (420) are close to described by the effect of screw rod (460) and nut (470)
First adjustable plate (410).
4. a kind of boiler centrifugal draught fan according to claim 3, which is characterized in that the air inlet of the casing (1)
(110) it is connected by bolt between the telescopic blast pipe (3), on the end face of the air inlet (110) of the casing (1)
Equipped with the first fan annular flange (120) to match with bolt, the end face of the telescopic blast pipe (3) is equipped with and bolt phase
Matched second fan annular flange (312).
5. a kind of boiler centrifugal draught fan according to claim 4, which is characterized in that on the telescopic blast pipe (3)
Set regulating tank (311) is between two ends of the second fan annular flange (312), and the regulating tank (311) is through flexible
The end face that formula blast pipe (3) is connected with air inlet (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070796.1U CN207879702U (en) | 2018-01-16 | 2018-01-16 | A kind of boiler centrifugal draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820070796.1U CN207879702U (en) | 2018-01-16 | 2018-01-16 | A kind of boiler centrifugal draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207879702U true CN207879702U (en) | 2018-09-18 |
Family
ID=63507042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820070796.1U Expired - Fee Related CN207879702U (en) | 2018-01-16 | 2018-01-16 | A kind of boiler centrifugal draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207879702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417871A (en) * | 2021-07-29 | 2021-09-21 | 佛山市珠江风机有限公司 | High-efficient kiln centrifugal fan with high temperature protection washing wind channel |
-
2018
- 2018-01-16 CN CN201820070796.1U patent/CN207879702U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417871A (en) * | 2021-07-29 | 2021-09-21 | 佛山市珠江风机有限公司 | High-efficient kiln centrifugal fan with high temperature protection washing wind channel |
| CN113417871B (en) * | 2021-07-29 | 2023-05-12 | 佛山市珠江风机有限公司 | High-efficient kiln centrifugal fan with high temperature protection washing wind channel |
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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 |
Granted publication date: 20180918 Termination date: 20200116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |