CN208595551U - A kind of flue device - Google Patents
A kind of flue device Download PDFInfo
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- CN208595551U CN208595551U CN201820772065.1U CN201820772065U CN208595551U CN 208595551 U CN208595551 U CN 208595551U CN 201820772065 U CN201820772065 U CN 201820772065U CN 208595551 U CN208595551 U CN 208595551U
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- flue
- chain
- shell
- dust
- sprocket wheel
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Abstract
The utility model discloses a kind of flue devices, including the shell with exhaust gases passes, the flue device is provided with cleaning part and driving part, the flue dust that driving part can drive cleaning part to deposit exhaust gases passes inside is purged, and the flue dust after removing can drain into the outside of exhaust gases passes from the dust-exhausting port on shell, guarantee there is no dust stratification in flue, the Resistance Value of air and gas system is constantly in relatively low situation, guarantee the stable of blower, save blower power consumption, and mitigate the labor intensity of service personnel, without artificially collecting dust stratification in flue, manual handling；In addition, the flue of this case can adapt to unit full working scope, it can guarantee the safe and stable operation of air and gas system in any case in unit load.The occurrence of elimination leads to compressor emergency shutdown because of exhaust gases passes dust stratification, flue device provided by the utility model can work at any time, not by boiler work limit, can not influence unit operation, online ash removal improves boiler of power plant utilization rate.
Description
Technical field
The utility model relates to environment protection pipeline technical field, in particular to a kind of flue device.
Background technique
Each equipment in existing thermal power plant cannot accomplish each equipment just because of the reasons such as arrangement space, technique
Good docking, connects so generalling use flue between equipment.
Existing flue generally uses four pieces of sidings to be welded to form, use reinforcing rib to reinforce outside siding with resist blower to
Internal and external pressure difference caused by flue.When reinforcing rib intensity is inadequate, it is also necessary to which tube stay is set inside flue.It is adopted there are also a kind of flue
It is welded with plate edge rolling, then one section of one section of splicing composition.
Flue meets the maximum continuous rating state of boiler at the beginning of design, is generally set with the situation of operating condition maximum
Flue is counted, therefore flue cross section design is very big.But after thermal power plant is put into operation, operating condition changes at any time, and needs full
The overall allotment of sufficient China's national grid, therefore the unit load in thermal power plant is not often in full load condition.
Boiler works often in underload, causes exhaust gas volumn after coal combustion little.However Flue duct design is according to most opium
Tolerance designs, and the flue gas flow rate in such flue will be lower than design value.Flow velocity is lower than design value, the dust in flue gas for a long time
Meeting free settling, ultimately causes dust stratification in flue.
Dust stratification causes flue load to increase in flue, causes security risk to equipment operation.Dust stratification can be made simultaneously in flue
Cause entire air and gas system resistance to rise at flue gas flow rate increase in flue, increase blower load, blower electricity consumption is caused to rise,
Increase power plant's coal consumption.In order to eliminate the above adverse effect, needs at present in power plant's shutdown maintenance, there is service personnel to enter flue
Internal manpower cleans internal dust stratification, then packed transportation processing, is handled with Automobile Transportation to designated place.
Therefore, dust deposit in flue how is effectively eliminated, and mitigates service personnel's labor intensity, while improving boiler of power plant utilization
Rate is those skilled in the art's technical problem urgently to be resolved.
Utility model content
The utility model provides a kind of flue device, including the shell with exhaust gases passes, which is characterized in that further include with
Lower component:
Cleaning part is located in the exhaust gases passes；
Driving mechanism, for driving the cleaning part to move along the exhaust gases passes, to remove the exhaust gases passes
The flue dust of inside deposition；
Dust-exhausting port is also provided on the shell, the exhaust gases passes are discharged from the dust-exhausting port in the flue dust after cleaning.
Flue device setting compared with the prior art is by manually removing the dust in exhaust gases passes, in the utility model
There are cleaning part and driving part, it is clear that driving part can drive cleaning part to carry out the flue dust that exhaust gases passes inside deposits
It removes, and the flue dust after removing can drain into the outside of exhaust gases passes from the dust-exhausting port on shell, guarantees there is no dust stratification in flue,
The Resistance Value of air and gas system is constantly in relatively low situation, guarantees the stable of blower, saves blower power consumption, and subtract
The labor intensity of light service personnel, without artificially collecting dust stratification in flue, manual handling.
In addition, the flue of this case can adapt to unit full working scope, it can guarantee cigarette wind system in any case in unit load
The safe and stable operation of system.It is the occurrence of elimination leads to compressor emergency shutdown because of exhaust gases passes dust stratification, provided by the utility model
Flue device can work at any time, not by boiler work limit, can not influence unit operation, online ash removal improves power plant
Boiler utilization rate.
Optionally, the lower section of the housing sidewall is tilting section, and the tilting section is connect with the bottom wall of the shell, described
Tilting section is inclined outwardly from bottom wall.
Optionally, the driving mechanism includes power part and sprocket wheel-chain assemblies, the sprocket wheel-chain assemblies installation
Inside the exhaust gases passes, the sprocket wheel-chain assemblies include drive sprocket, driven sprocket and ring chain, the annular
Chain edge is parallel to the flow direction of flue gas around two sprocket wheel cycle rotations, and the cleaning part is installed on the ring chain, institute
It states power part and drives the drive sprocket rotation.
Optionally, the quantity of the sprocket wheel-chain assemblies is two groups, and sprocket wheel-chain assemblies described in two groups are relatively arranged on
Two sidewalls of the shell, and the drive sprocket of the two sprocket wheel-chains is co-axially mounted, sprocket wheel-chain described in two groups from
Movable sprocket is co-axially mounted, the cleaning part lateral arrangement and sprocket wheel-chain assemblies chain described in connecting two groups simultaneously.
Optionally, the dust-exhausting port is opened in the bottom wall of the shell and the front end close to the sprocket wheel-chain assemblies, and
And cover board is provided in front of the dust-exhausting port, the cover board tilts obliquely；When work, the cleaning part is against flow of flue gas
Direction cleans the bottom wall of the shell, and to inswept 7 upper limb of cover board in lower edge part.
It optionally, further include the support shaft of parallel chain wheel shaft setting, the chain being used to support above the sprocket wheel
Item, at least one end of the support shaft are connected and fixed the inside sidewalls of the shell.
Optionally, be fixed with roller support on the inside of the two sidewalls of the shell, the both ends difference rotational support of the support shaft in
In the roller support of corresponding side.
It optionally, further include two adjusting bolts, the two is screwed with the shell and parallel chain is arranged, along chain
Extending direction, two tail ends for adjusting bolts are opposite with two driven chain wheel shafts.
Optionally, the sprocket wheel-chain assemblies are near or at the tilting section.
It optionally, further include L-type connector, the L-type connector includes cross wall and wall, and the cleaning part is fixed on
The cross wall, the wall are fixed on the pin shaft of chain link plate and between inner plate and outer plates.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flue device in a kind of embodiment of the utility model；
Fig. 2 is the partial schematic diagram of flue device shown in Fig. 1；
Fig. 3 is the schematic side view of flue device shown in Fig. 1；
Fig. 4 is the partial schematic diagram in a kind of embodiment of the utility model at dust-exhausting port position；
Fig. 5 is the partial schematic diagram that bolt installed position is adjusted in a kind of embodiment of the utility model；
Fig. 6 is chain and the top view after cleaning part assembly in the utility model；
Fig. 7 is A-A cross-sectional view in Fig. 6.
Wherein, Fig. 1 is into Fig. 7:
1 shell；1-1 side wall；1-11 vertical section；1-12 tilting section；Bottom wall 1-2；21 driven sprockets；22 drive sprockets；3 rings
Shape chain；4 cleaning parts；41 brush handles；42 bristles；5 support shafts；6 sprocket shafts；7 cover boards；8 bearings；9 roller supports；10 power parts；
11 adjust bolt；12 fixed blocks, 13 bearings, 20 ash buckets；30L type connector.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of flue device in a kind of embodiment of the utility model；Fig. 2 is
The partial schematic diagram of flue device shown in Fig. 1；Fig. 3 is the schematic side view of flue device shown in Fig. 1.
The utility model provides a kind of flue device comprising the shell 1 with exhaust gases passes, the specific material of shell 1
Material with no restrictions, can be same as the prior art.Flue device provided by the utility model further includes cleaning part 4 and driving
Mechanism.
Wherein, cleaning part 4 is set to the interior of exhaust gases passes, that is to say, that cleaning part 4 is located at the inside of shell 1.
Cleaning part 4 can be the brush with bristle 42, and specifically, brush includes brush handle 41 and bristle 42.Brush have high temperature resistant,
Wear-resisting characteristic.
Driving mechanism driving cleaning part 4 is moved along exhaust gases passes, to remove the flue dust deposited inside exhaust gases passes.It drives
Motivation structure can be include motor, also may include telescoping cylinder or other power parts 10.Power part 10 is direct or logical
It crosses transmission mechanism driving cleaning part 4 to move back and forth inside exhaust gases passes, the dust in exhaust gases passes is cleared up.
Power part 10 can be installed on the outside of shell 1, and the rotation axis of power part 10 is supported in shell by bearing 8
In the mounting hole of side wall.
Also, dust-exhausting port is also provided on shell 1, exhaust gases passes can be discharged from dust-exhausting port in the flue dust after cleaning.Dust discharge
Mouth can open up multiple, i.e., be arranged multiple dust-exhausting ports on cleaning path, two neighboring dust-exhausting port is certain along route interval is cleaned
Distance arrangement is realized and dust is cleared out of exhaust gases passes when cleaning；Dust-exhausting port may be one, that is, clean the end terminated
End setting dust-exhausting port, once discharges into dust-exhausting port for the dust cleaned on path.
Flue device setting compared with the prior art is by manually removing the dust in exhaust gases passes, in the utility model
There are cleaning part 4 and driving part, it is clear that driving part can drive cleaning part 4 to carry out the flue dust that exhaust gases passes inside deposits
It removes, and the flue dust after removing can drain into the outside of exhaust gases passes from the dust-exhausting port on shell 1, guarantees not accumulate in flue
Ash, the Resistance Value of air and gas system are constantly in relatively low situation, guarantee the stable of blower, save blower power consumption, and
And mitigate the labor intensity of service personnel, without artificially collecting dust stratification in flue, manual handling.
In addition, the flue of this case can adapt to unit full working scope, it can guarantee cigarette wind system in any case in unit load
The safe and stable operation of system.It is the occurrence of elimination leads to compressor emergency shutdown because of exhaust gases passes dust stratification, provided by the utility model
Flue device can work at any time, not by boiler work limit, can not influence unit operation, online ash removal improves power plant
Boiler utilization rate.
In view of being easy to remove the factor of flue dust, the flue device in the utility model can also be arranged as follows.
In a specific embodiment, the lower section of 1 side wall 1-1 of shell is tilting section 1-12, tilting section 1-12 and shell 1
Bottom wall 1-2 connection, tilting section 1-12 are inclined outwardly from bottom wall 1-2.That is, from top to bottom, 1 side wall 1-1 of shell is at least wrapped
Include two sections: upper section and lower section, upper section usually can choose the shape of conventional smoke pipe, such as vertical section 1-11, i.e., from top to bottom, shell
1 side wall of body includes vertical section 1-11 and tilting section 1-12.Certain side wall upper section may be other shapes, and herein above section is perpendicular
Technical solution is introduced for straight section 1-11.
The approximate range of angle α between tilting section 1-12 and horizontal plane are as follows: 60 ° to 80 °.It was verified that being in the angle
The structure that the tilting section 1-12 and bottom wall 1-2 of range are formed is easy cleaning, is not likely to produce flue dust dead end of cleanning.
Driving mechanism includes power part 10 and sprocket wheel-chain assemblies, and sprocket wheel-chain assemblies are installed in exhaust gases passes
Portion, sprocket wheel-chain assemblies include drive sprocket 22, driven sprocket 21 and ring chain 3, and ring chain 3 is along being parallel to flue gas
Around two sprocket wheel cycle rotations, cleaning part 4 is installed on ring chain 3 for flow direction, and power part 10 drives 22 turns of drive sprocket
It is dynamic.
That is, driving part driving drive sprocket 22 rotates, drive sprocket 22 drives meshed chain to turn
It is dynamic, and then under the drive of ring chain 3, the driven sprocket 21 engaged with ring chain 3 also rotates with it.Cleaning part 4 can
To be installed on ring chain 3, as long as not influencing the engaged transmission of ring chain 3 and sprocket wheel, a kind of chain is discussed below
With the fixed form of cleaning part 4.
The chain sprocket kind of drive is suitable for the poor condition of environment, of less demanding for transmission accuracy, and have compared with
Good transmission stability.
In order to increase by 4 job stability of cleaning part, also carry out herein arranged below.
In a kind of specific embodiment, sprocket wheel-chain assemblies quantity is two groups, two groups of sprocket wheels-chain assemblies phase
Drive sprocket 22 to the two sidewalls for being set to shell 1, and in two sprocket wheels-chain assemblies is co-axially mounted, two driven sprockets
It 21 is co-axially mounted, two groups of sprocket wheel-chain assemblies can be driven by a power part 10 in this way, and two drive sprockets 22 are pacified
It loaded on same axis, may be implemented to move synchronously, increase 4 job stability of cleaning part.
4 lateral arrangement of cleaning part and the chain in two groups of sprocket wheel-chain assemblies is connected simultaneously.It can increase so clear
Sweep the stability maintenance of component 4.
It should be noted that will be perpendicular to the direction definition of 1 length of shell herein as laterally.I.e. perpendicular to flue gas flow direction
Direction is laterally.
Cleaning part 4 preferably cleans 1 bottom wall 1-2 of shell against flue gas flow direction, reduces the interference to flue gas flow direction as far as possible in this way.
Referring to FIG. 4, Fig. 4 is the partial schematic diagram in a kind of embodiment of the utility model at dust-exhausting port position.
In a preferred embodiment, dust-exhausting port is opened in the bottom wall 1-2 of shell 1 and close to sprocket wheel-chain assemblies
Front end, and cover board 7 is provided in front of dust-exhausting port, cover board 7 tilts obliquely；When work, cleaning part 4 is against flow of flue gas
Direction cleans the bottom wall 1-2 of shell 1, and to inswept 7 upper limb of cover board in lower edge part.
Cover board 7 in front of dust-exhausting port is conducive to that the brush (cleaning part 4) of exhaust gases passes bottom is allowed not influence air-flow, together
When flue gas stream guide slightly upwards, it is not easy to cause reentrainment of dust.In addition the size of cover board 7 is designed, so that brush (cleans
Component 4) by cover board when, brush handle 41 can smooth rotation passes through, and bristle 42 by when just interfere with cover board 7.In this way
Cover board 7 can clear up the dust stratification on a bristle 42 with each rotating distance, improve cleaning efficiency, accomplish thorough deashing.Also it is
Next deashing stroke of brush (cleaning part 4) is ready.
In order to increase the stability of chain work, can also be arranged as follows.
In the various embodiments described above, flue device can also include the support shaft of parallel chain wheel shaft setting, be used to support
Chain above sprocket wheel, at least one end of support shaft are connected and fixed the inside sidewalls of shell 1.
Specifically, roller support 9 can be fixed on the inside of the two sidewalls of shell 1, the both ends difference rotational support of support shaft is in phase
It answers in the roller support 9 of side.9 supporting way structure of roller support is simple, occupies exhaust gases passes space very little, and roller support 9 can directly be consolidated
The air-tightness of shell 1 is improved without perforating on shell 1 due to 1 inner wall of shell.
Certainly, support shaft rotational support can also not done repeat one by one herein in 1 inner sidewall of shell by other means.
Referring to FIG. 5, Fig. 5 is to adjust the partially schematic of 11 installed position of bolt in a kind of embodiment of the utility model
Figure.
Further, it can also include adjusting bolt 11 in the respective embodiments described above, further include two adjusting bolts 11, two
Person be screwed with the shell 1 and parallel chain arrange, along chain extending direction, two it is described adjust bolts 11 tail ends with
Two 21 axis of driven sprocket are opposite.
The adjustable driven sprocket 21 of bolt 11 and the position between the two of drive sprocket 22 are adjusted by rotation, by position
Chain tension below sprocket wheel.
Specifically, fixed block 12 can be set in the side-wall outer side of shell 1, adjusts bolt 11 and is threadedly coupled with fixed block, from
Movable sprocket axis is supported on the side wall of shell 1 by bearing 13, and end extends to the outside of shell 1, is adjusted bolt 11 and is passed through
It abuts against the driven chain wheel shaft outside shell 1 and adjusts the distance between itself and drive sprocket axle.
Sprocket wheel-chain assemblies in the various embodiments described above can reduce to the greatest extent in this way near or at tilting section 1-12
Influence to flow of flue gas in exhaust gases passes.
Fig. 6 and Fig. 7 are please referred to, Fig. 6 is chain and the top view after the assembly of cleaning part 4 in the utility model；Fig. 7 is figure
A-A cross-sectional view in 6.
In the various embodiments described above, flue device can also include L-type connector 30, and L-type connector 30 includes cross wall and stands
Wall, cleaning part 4 are fixed on cross wall, and wall is fixed on the pin shaft of chain link plate and between inner plate and outer plate.
Fixation certainly for cleaning part 4 is not limited to L-type connector form, can also be other forms.
Same L-type connector 30 can be fixed on simultaneously on the pin shaft of two chain links, it is of course also possible to be fixed on a chain
On the pin shaft of section.The fixed form is conducive to the service life for improving chain without additionally increasing fixed structure on chain.
In the various embodiments described above, ash bucket 20 can also be arranged in the lower section of dust-exhausting port, and flue dust enters ash bucket 20 temporarily from dust-exhausting port
When store.Ash bucket can be up big and down small pyramidal structure.
A kind of flue device provided by the utility model is described in detail above.It is used herein specifically a
Example is expounded the principles of the present invention and embodiment, this reality that the above embodiments are only used to help understand
With novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen
Enter in the protection scope of the utility model claims.
Claims (10)
1. a kind of flue device, including the shell (1) with exhaust gases passes, which is characterized in that further include with lower component:
Cleaning part (4) is located in the exhaust gases passes；
Driving mechanism, for driving the cleaning part (4) to move along the exhaust gases passes, to remove in the exhaust gases passes
The flue dust of portion's deposition；
It is also provided with dust-exhausting port on the shell (1), the exhaust gases passes are discharged from the dust-exhausting port in the flue dust after cleaning.
2. flue device as described in claim 1, which is characterized in that the lower section of shell (1) side wall (1-1) is tilting section
(1-12), the tilting section (1-12) connect with the bottom wall of the shell (1), and the tilting section (1-12) leans outward from bottom wall
Tiltedly.
3. flue device as claimed in claim 2, which is characterized in that the driving mechanism includes power part and sprocket wheel-chain
Bar assembly, the sprocket wheel-chain assemblies are installed on inside the exhaust gases passes, and the sprocket wheel-chain assemblies include drive sprocket
(22), driven sprocket (21) and ring chain (3), ring chain (3) edge are parallel to the flow direction of flue gas around two sprocket wheels
Cycle rotation, the cleaning part (4) are installed on the ring chain (3), and the power part drives the drive sprocket
(22) it rotates.
4. flue device as claimed in claim 3, which is characterized in that the quantity of the sprocket wheel-chain assemblies is two groups, two groups
Sprocket wheel-the chain assemblies are relatively arranged on the two sidewalls (1-1) of the shell (1), and the active of the two sprocket wheel-chains
Sprocket wheel (22) is co-axially mounted, and sprocket wheel-chain driven sprocket (21) described in two groups is co-axially mounted, and the cleaning part (4) is laterally
Arrangement and sprocket wheel-chain assemblies chain described in connecting two groups simultaneously.
5. flue device as claimed in claim 3, which is characterized in that the dust-exhausting port is opened in the bottom wall of the shell (1)
And close to the front end of the sprocket wheel-chain assemblies, and cover board (7) are provided in front of the dust-exhausting port, the cover board (7) is oblique
Inclination upwards；When work, the inverse flow of flue gas direction of the cleaning part (4) cleans the bottom wall of the shell (1), and to lower edge
Divide inswept cover board (7) upper limb.
6. flue device as claimed in claim 3, which is characterized in that it further include the support shaft of parallel chain wheel shaft setting,
It is used to support the chain being located above the sprocket wheel, at least one end of the support shaft is connected and fixed the side wall of the shell (1)
On the inside of (1-1).
7. flue device as claimed in claim 6, which is characterized in that be fixed on the inside of the two sidewalls (1-1) of the shell (1)
Roller support (9), the both ends difference rotational support of the support shaft is on the roller support (9) of corresponding side.
8. flue device as claimed in claim 4, which is characterized in that further include two adjusting bolts (11), the two is and institute
State shell (1) be screwed and parallel chain arrange, along chain extending direction, two it is described adjust bolt (11) tail ends and two
Driven sprocket (21) axis is opposite.
9. such as any one of claim 3 to 8 to the flue device, which is characterized in that the sprocket wheel-chain assemblies it is close or
Person is located at the tilting section (1-12).
10. such as the described in any item flue devices of claim 3 to 8, which is characterized in that it further include L-type connector (30), it is described
L-type connector (30) includes cross wall and wall, and the cleaning part (4) is fixed on the cross wall, and the wall is fixed on chain
The pin shaft of chain link and between inner plate and outer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820772065.1U CN208595551U (en) | 2018-05-23 | 2018-05-23 | A kind of flue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820772065.1U CN208595551U (en) | 2018-05-23 | 2018-05-23 | A kind of flue device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595551U true CN208595551U (en) | 2019-03-12 |
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ID=65600669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820772065.1U Active CN208595551U (en) | 2018-05-23 | 2018-05-23 | A kind of flue device |
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| CN (1) | CN208595551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531571A (en) * | 2021-07-26 | 2021-10-22 | 中冶长天国际工程有限责任公司 | Flue ash removal device and ash removal system |
-
2018
- 2018-05-23 CN CN201820772065.1U patent/CN208595551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531571A (en) * | 2021-07-26 | 2021-10-22 | 中冶长天国际工程有限责任公司 | Flue ash removal device and ash removal system |
| CN113531571B (en) * | 2021-07-26 | 2022-05-06 | 中冶长天国际工程有限责任公司 | Flue ash removal device and ash removal system |
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