CN209242167U - A kind of pulverized coal channel drag regulator - Google Patents
A kind of pulverized coal channel drag regulator Download PDFInfo
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- CN209242167U CN209242167U CN201822042736.1U CN201822042736U CN209242167U CN 209242167 U CN209242167 U CN 209242167U CN 201822042736 U CN201822042736 U CN 201822042736U CN 209242167 U CN209242167 U CN 209242167U
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- pulverized coal
- coal channel
- connecting rod
- driving shaft
- driven shaft
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Abstract
The utility model discloses a kind of pulverized coal channel drag regulators, comprising: device noumenon, driving shaft, driven shaft, Electric Actuator, link mechanism and resistance regulation baffle；Device noumenon both ends are connect with pulverized coal channel；Electric Actuator is mounted on outside device noumenon, and with active axis connection；Electric Actuator is connected with control system；Driving shaft and driven shaft are respectively arranged in the two sides of device noumenon；It is connected between driving shaft and driven shaft by link mechanism；Resistance regulation baffle is mounted on two sides inside device noumenon by driving shaft and driven shaft.Pulverized coal channel drag regulator provided by the utility model can be adjusted in real time according to the resistance situation in pulverized coal channel, guarantee resistance error in every pulverized coal channel in allowed limits, the aperture of resistance regulation baffle can also be understood, in real time also how many adjusting surplus understood.
Description
Technical field
The utility model relates to coal dust Pneumatic Conveying Technology field, more particularly to a kind of pulverized coal channel resistance tune
Regulating device.
Background technique
In coal-fired station, after raw coal is milled into coal dust by coal pulverizer, coal dust and hot wind form wind powder mixture, then
Boiler combustion is delivered to by pulverized coal channel.As the case may be, corresponding 2~6 pulverized coal channels of every coal pulverizer, fire from boiler
The angle of burning, it is desirable to which the wind powder mixture deviation in the corresponding pulverized coal channel of separate unit coal pulverizer is the smaller the better.But due to every
Pulverized coal channel, the difference of length and trend from coal pulverizer to boiler, causes different pulverized coal channels to make wind powder mixture
At resistance it is inconsistent, it is very big to further result in conveyed wind powder mixture deviation, is mainly shown as hot blast rate deviation, coal dust
Deviation, fineness of pulverized coal deviation etc..In order to meet the requirement of boiler combustion, it is necessary to increase drag regulator on pulverized coal channel,
With balanced pulverized coal channel resistance, within the allowable range by wind powder deviation control in pulverized coal channel.
Current pulverized coal channel resistance regulation refers to attached drawing 1 using Double core adjustable pipe, in every pulverized coal channel
One Double core adjustable pipe of upper installation.When cold conditions (only divulging information in pipeline, be free of coal dust) is demarcated, each Double core adjustable pipe is opened
Degree is all maximum, and Double core adjustable pipe will not cause additional resistance to increase to pipeline at this time, measure the resistance in every root canal road later
Power adjusts the Double core adjustable pipe on the small pipeline of other resistances on the basis of resistance maximum value respectively, by reducing core plate
Aperture achievees the purpose that increase resistance, and the resistance error in pulverized coal channel is finally made to reach allowed band.
Double core adjustable pipe has the drawback that (1) manually adjusts, since the position of Double core adjustable pipe installation is all separate
Ground, when adjusting, need worker to climb to very high position to carry out adjusting handle 3, so operation is very inconvenient, it is even more impossible to carry out frequently
It adjusts.(2) it is only adjusted once in cold conditions (ventilation, is free of coal dust in pipeline) calibration, after coal pulverizer is run, in pulverized coal channel
Circulation medium be that coal dust and hot wind form wind powder mixture, the resistance in pipeline changes at this time, generates new resistance not
Balance, and it is this it is new it is uneven with ventilation quantity, coal powder density, fineness of pulverized coal variation and change, Double core adjustable pipe
This resistance variation can not be continually followed to be adjusted.
Therefore, how the resistance in pulverized coal channel to be adjusted at any time according to the variation of resistance is those skilled in the art
The problem of member's urgent need to resolve.
Utility model content
In view of this, the present invention provides a kind of pulverized coal channel drag regulator, Electric Actuator is based on control
The aperture for the regulating command resistance regulation baffle that system issues changes cross-sectional flow area, can be according to resistance to realize
Variation is to be at any time adjusted the resistance of ducting.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of pulverized coal channel drag regulator, comprising: device noumenon, driving shaft, driven shaft, Electric Actuator, connecting rod
Mechanism and resistance regulation baffle；
Described device ontology both ends are connect with pulverized coal channel；
The Electric Actuator is mounted on described device body exterior, and with the active axis connection；The electronic execution
Device is connected with control system；
The driving shaft and the driven shaft are respectively arranged in the two sides of described device ontology；The driving shaft and it is described from
It is connected between moving axis by the link mechanism；
The resistance regulation baffle is symmetrically mounted on described device body interior by the driving shaft and the driven shaft
Two sides.
Preferably, described device ontology includes: baffle mounting portion, and baffle mounting portion both ends were successively connected with
Cross pipe and pulverized coal channel connecting tube；The pulverized coal channel connecting tube is connect with the pulverized coal channel；
Baffle mounting portion two sides offer axis hole, and the driving shaft and the driven shaft are respectively arranged in the axis hole
It is interior.
Preferably, the link mechanism includes: sequentially connected drive connecting rod, intermediate connecting rod and follower link；
Described drive connecting rod one end is fixed on the driving shaft, and the other end is connect with the first end of the intermediate connecting rod；
Described follower link one end is fixed on the driven shaft, and the other end is connect with the second end of the intermediate connecting rod.
Preferably, between the drive connecting rod and the intermediate connecting rod and the follower link and the intermediate connecting rod it
Between pass through hinged axis connection.
Link mechanism is made of drive connecting rod, articulated shaft, intermediate connecting rod and follower link, and drive connecting rod and driving shaft connect
It connects, is rotated synchronously with driving shaft, follower link and driven axis connection, and rotate synchronously.When Electric Actuator receives control system
It unites after the instruction issued, driving shaft and drive connecting rod rotation, drive connecting rod is driven to drive again by the intermediate connecting rod hinged with it
Follower link rotation finally rotates synchronously driven shaft and driving shaft.
Preferably, the length of the driving shaft is greater than the length of the driven shaft.
Preferably, the equal length of the length of the drive connecting rod and the follower link.
Preferably, the section-bottom of the baffle mounting portion is that the identical semicircle of pipe diameter is connect with pulverized coal channel, on
Portion is rectangle.
It can be seen via above technical scheme that compared with prior art, the utility model, which discloses, provides a kind of coal pipe
Road drag regulator can be adjusted in real time according to the resistance situation in pulverized coal channel, be guaranteed in every pulverized coal channel
Resistance error is in allowed limits, additionally it is possible to the aperture of resistance regulation baffle is understood in real time, more than understanding also how many adjusting
Amount.Moreover, no matter aperture is how many to resistance regulation baffle, all in a vertical state always, coal dust will not be in resistance regulation baffle
Deposition.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of the prior art provided by the utility model；
Fig. 2 is the structural schematic diagram of drag regulator provided by the utility model；
Fig. 3 is the structural schematic diagram of device noumenon provided by the utility model；
Fig. 4 is the structural schematic diagram of baffle mounting portion provided by the utility model；
Fig. 5 is the cross-sectional view one of drag regulator provided by the utility model；
Fig. 6 is the cross-sectional view two of drag regulator provided by the utility model；
Fig. 7 is the structural schematic diagram one of link mechanism provided by the utility model；
Fig. 8 is the structural schematic diagram two of link mechanism provided by the utility model；
Structural schematic diagram one when Fig. 9 is resistance regulation baffle opening minimum provided by the utility model；
Structural schematic diagram two when Figure 10 is resistance regulation baffle opening minimum provided by the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment discloses a kind of pulverized coal channel drag regulator, comprising: device noumenon 9, driving shaft
13, driven shaft 15, Electric Actuator 7, link mechanism 8 and resistance regulation baffle 14；
9 both ends of device noumenon are connect with pulverized coal channel；
Electric Actuator 7 is mounted on outside device noumenon 9, and is connect with driving shaft 13；Electric Actuator 7 and control system
It is connected；
Electric Actuator 7 receives the instruction that control system issues, and drives driving shaft 13, and driving shaft 13 passes through link mechanism 8
Driving driven shaft 15 synchronizes rotation.In addition, Electric Actuator 7 can also be to control system Real-time Feedback resistance regulation baffle 14
Aperture.Electric Actuator itself is equipped with position sensor, can recorde the aperture of simultaneously feedback resistance controllable register, and is transferred to
Control system.
Driving shaft 13 and driven shaft 15 are respectively arranged in the two sides of device noumenon 9；Lead between driving shaft 13 and driven shaft 15
Cross the connection of link mechanism 8；
Resistance regulation baffle 14 is symmetrically mounted on 9 inside two sides of device noumenon by driving shaft 13 and driven shaft 15.
Resistance regulation baffle 14 is mounted on drag regulator ontology 9 by driving shaft 13 and driven shaft 15, can be around
Axis rotation.When resistance regulation baffle opening maximum, resistance do not caused to pipeline, when aperture minimum, pipeline cross-sectional flow area is
Originally half.Electric Actuator 7 is connect with driving shaft 13, directly drives driving shaft 13 and resistance regulation baffle 14 rotates, actively
Axis 13 is connect by link mechanism 8 with driven shaft 15, and the torque of Electric Actuator 7 is transmitted to driven shaft 15, drives driven shaft
15 and resistance regulation baffle 14 rotate.
In order to further optimize the above technical scheme, device noumenon 9 includes: baffle mounting portion 12, and 12 liang of baffle mounting portion
End is successively connected with coupling tube 11 and pulverized coal channel connecting tube 10；Pulverized coal channel connecting tube 10 is connect with pulverized coal channel；
12 two sides of baffle mounting portion offer axis hole 20, and driving shaft 13 and driven shaft 15 are respectively arranged in axis hole 20.
In order to further optimize the above technical scheme, link mechanism 8 includes: that sequentially connected drive connecting rod 16, centre connect
Bar 18 and follower link 19；
16 one end of drive connecting rod is fixed on driving shaft 13, and the other end is connect with the first end of intermediate connecting rod 18；
19 one end of follower link is fixed on driven shaft 15, and the other end is connect with the second end of intermediate connecting rod 18.
In order to further optimize the above technical scheme, between drive connecting rod 16 and intermediate connecting rod 18 and 19 He of follower link
It is connected by articulated shaft 17 between intermediate connecting rod 18.
Link mechanism 8 is by driving shaft 13, drive connecting rod 16, articulated shaft 17, intermediate connecting rod 18, follower link 18 and driven shaft
15 compositions, 18 equal length of drive connecting rod 16 and follower link, driving shaft 13 and driven shaft 15 constitute the fixed hinge of link mechanism
Contact, articulated shaft 17 are moveable hinge contact.When drive connecting rod 16 is driven by Electric Actuator 7 to be rotated, intermediate connecting rod 18 is by band
It is dynamic, and follower link 18 is driven to rotate around driven shaft 15, it is rotated towards each other to realize that resistance regulation baffle 14 synchronizes.
In order to further optimize the above technical scheme, the length of driving shaft 13 is greater than the length of driven shaft 15.
In order to further optimize the above technical scheme, the equal length of the length of drive connecting rod 16 and follower link 19.
Preferably, the section-bottom of the baffle mounting portion is that the identical semicircle of pipe diameter is connect with pulverized coal channel, on
Portion is rectangle.
There are two effects for the shape of baffle mounting portion, first is that guaranteeing that the sectional area of baffle mounting portion is not less than pipeline section
Product not will cause resistance of ducting increase, two are to ensure that the installation of driving shaft and driven shaft that is, when baffle opening maximum.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (7)
1. a kind of pulverized coal channel drag regulator characterized by comprising device noumenon (9), driving shaft (13), driven shaft
(15), Electric Actuator (7), link mechanism (8) and resistance regulation baffle (14)；
Described device ontology (9) both ends are connect with pulverized coal channel；
It is external that the Electric Actuator (7) is mounted on described device ontology (9), and connect with the driving shaft (13)；The electricity
Dynamic actuator (7) are connected with control system；
The driving shaft (13) and the driven shaft (15) are respectively arranged in the two sides of described device ontology (9)；The driving shaft
(13) it is connected between the driven shaft (15) by the link mechanism (8)；
The resistance regulation baffle (14) is mounted on described device ontology by the driving shaft (13) and the driven shaft (15)
(9) internal two sides.
2. a kind of pulverized coal channel drag regulator according to claim 1, which is characterized in that described device ontology (9)
It include: baffle mounting portion (12), baffle mounting portion (12) both ends are successively connected with coupling tube (11) and pulverized coal channel
Connecting tube (10)；The pulverized coal channel connecting tube (10) connect with the pulverized coal channel；
Baffle mounting portion (12) two sides offer axis hole (20), and the driving shaft (13) and the driven shaft (15) are pacified respectively
Loaded in the axis hole (20).
3. a kind of pulverized coal channel drag regulator according to claim 2, which is characterized in that the link mechanism (8)
It include: sequentially connected drive connecting rod (16), intermediate connecting rod (18) and follower link (19)；
Described drive connecting rod (16) one end is fixed on the driving shaft (13), and the first of the other end and the intermediate connecting rod (18)
End connection；
Described follower link (19) one end is fixed on the driven shaft (15), and the second of the other end and the intermediate connecting rod (18)
End connection.
4. a kind of pulverized coal channel drag regulator according to claim 3, which is characterized in that the drive connecting rod (16)
Pass through articulated shaft between the intermediate connecting rod (18) and between the follower link (19) and the intermediate connecting rod (18)
(17) it connects.
5. a kind of pulverized coal channel drag regulator according to any one of claims 1-4, which is characterized in that the master
The length of moving axis (13) is greater than the length of the driven shaft (15).
6. a kind of pulverized coal channel drag regulator according to claim 3 or 4, which is characterized in that the drive connecting rod
(16) equal length of length and the follower link (19).
7. a kind of pulverized coal channel drag regulator according to claim 2, which is characterized in that the baffle mounting portion
(12) section-bottom is semicircle identical with pulverized coal channel connecting tube (10) diameter, and top is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042736.1U CN209242167U (en) | 2018-12-06 | 2018-12-06 | A kind of pulverized coal channel drag regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042736.1U CN209242167U (en) | 2018-12-06 | 2018-12-06 | A kind of pulverized coal channel drag regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209242167U true CN209242167U (en) | 2019-08-13 |
Family
ID=67531917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822042736.1U Active CN209242167U (en) | 2018-12-06 | 2018-12-06 | A kind of pulverized coal channel drag regulator |
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| Country | Link |
|---|---|
| CN (1) | CN209242167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399217A (en) * | 2018-12-06 | 2019-03-01 | 上海意丰机电科技开发有限公司 | A kind of pulverized coal channel drag regulator |
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2018
- 2018-12-06 CN CN201822042736.1U patent/CN209242167U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399217A (en) * | 2018-12-06 | 2019-03-01 | 上海意丰机电科技开发有限公司 | A kind of pulverized coal channel drag regulator |
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