CN209484636U - A kind of deashing device of low-level (stack-gas) economizer - Google Patents
A kind of deashing device of low-level (stack-gas) economizer Download PDFInfo
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- CN209484636U CN209484636U CN201820299344.0U CN201820299344U CN209484636U CN 209484636 U CN209484636 U CN 209484636U CN 201820299344 U CN201820299344 U CN 201820299344U CN 209484636 U CN209484636 U CN 209484636U
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Abstract
The utility model discloses a kind of deashing devices of low-level (stack-gas) economizer, set on low-level (stack-gas) economizer inlet flue duct and exhaust pass bottom, meter, rear set material meter, preposition electronic rotation flashboard, postposition electronic rotation flashboard, preposition deashing motor-driven valve, postposition deashing motor-driven valve, preposition soot blowing motor-driven valve, postposition soot blowing motor-driven valve are expected in preamble bit including connecting with control system, further include preposition ash bucket, postposition ash bucket, preposition blowing pipe, postposition blowing pipe, compressed air hose and deashing pipe.The utility model structure is simple, easy to operate, can remove low-level (stack-gas) economizer two sides dust stratification in time, eliminates the influence of dust stratification heat exchanging device heat transfer effect, reduces flue gas resistance, reduces air-introduced machine power consumption.
Description
Technical field
The utility model relates to industrial flue gas cleaning and heat recovery technology fields, more particularly to a kind of low-level (stack-gas) economizer
Deashing device.
Background technique
Low-level (stack-gas) economizer refers generally to the waste heat recycling of the flue gas of Industrial Boiler or station boiler or waste heat boiler tail portion out
Equipment.The flue-gas temperature of general station boiler discharge is relatively high, in order to utilize heat in flue gas to greatest extent, improves energy
The utilization rate in source improves the dust removal efficiency of deduster, can install low-level (stack-gas) economizer additional before electric precipitator, flue gas and condensed water are in low temperature
Counterflow heat exchange in economizer, heat medium water are heated up, and flue-gas temperature is reduced to acid dew-point temperature.Low-level (stack-gas) economizer not only can be with
Mist heat recovering enters for heat-setting water or the First air of heating air preheater simultaneously as flue-gas temperature reduces
The flue gas volume flow of electric precipitator is reduced, and dust concentration increases, and specific resistance reduces, and is promoted the efficiency of dust collection of electric precipitator and is subtracted
Small electric precipitator equipment investment；
But according to actual production using discovery, in the inlet flue duct of low-level (stack-gas) economizer, since low-level (stack-gas) economizer is to flue gas
There is resistance, a part of ash can fall on import bottom, simultaneously as low-level (stack-gas) economizer reduces the flowing velocity of flue gas, low
The exhaust pass mouth bottom of warm economizer also have part ash landing deposition, with the accumulation of time cause low-level (stack-gas) economizer into
For exhaust pass by dust stratification Partial Blocking, the reduction so as to cause the exhaust gas volumn for entering low-level (stack-gas) economizer causes cigarette speed smaller, thus
Flue and a large amount of dust stratifications of low-level (stack-gas) economizer are caused, low-level (stack-gas) economizer heat exchange property is finally seriously affected, also influences subsequent electric precipitation
The efficiency of dust collection of device.Fouling phenomenon caused by a large amount of installations of low-level (stack-gas) economizer is very serious, the function of the air-introduced machine of flue gas conveying
Rate is a greater impact, so soot cleaning system becomes essential device, it is clear that low-level (stack-gas) economizer imports and exports stack base dust stratification
Sweeping becomes a great problem.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of deashing device of low-level (stack-gas) economizer.
The technical solution adopted in the utility model is: a kind of deashing device of low-level (stack-gas) economizer, including low-level (stack-gas) economizer
Inlet flue duct and exhaust pass further include the deashing device set on low-level (stack-gas) economizer inlet flue duct and exhaust pass bottom；
The deashing device includes preamble bit material meter, rear set material meter, preposition electronic rotation flashboard, postposition electronic rotation lock
It is plate, preposition ash bucket, postposition ash bucket, preposition deashing motor-driven valve, postposition deashing motor-driven valve, preposition blowing pipe, postposition blowing pipe, preposition
Soot blowing motor-driven valve, postposition soot blowing motor-driven valve, compressed air hose, deashing pipe and control system；
The preamble bit material meter and rear set material meter are arranged respectively close to the front and rear of low-level (stack-gas) economizer, the import
Flue and exhaust pass bottom are respectively equipped with preposition electronic rotation flashboard and postposition electronic rotation flashboard, the preposition electronic rotation
Preposition ash bucket and postposition ash bucket, the preposition ash bucket and postposition ash bucket are connected separately with below flashboard and postposition electronic rotation flashboard
Bottom is connected to deashing pipe respectively, and preposition deashing motor-driven valve and postposition deashing electricity are respectively equipped on the connecting pipe of the deashing pipe
Dynamic valve；
The compressed air hose be inserted into after preposition ash bucket and postposition ash bucket respectively respectively with extend vertically into deashing pipe communicating pipe
The preposition blowing pipe in road is connected with postposition blowing pipe, and the compressed air hose is equipped with preposition soot blowing motor-driven valve and postposition soot blowing electricity
Dynamic valve；The section that extends vertically into of the preposition blowing pipe and postposition blowing pipe is equipped with several soot blowing holes；
Expect meter, rear set material meter, preposition electronic rotation flashboard, postposition electronic rotation flashboard, preposition deashing in the preamble bit
Motor-driven valve, postposition deashing motor-driven valve, preposition soot blowing motor-driven valve, postposition soot blowing motor-driven valve are electrically connected with control system.
Further, the flashboard length of the preposition electronic rotation flashboard and postposition electronic rotation flashboard and inlet flue duct and
The bottom width of exhaust pass is equal.
Further, the preposition electronic rotation flashboard and postposition electronic rotation ram position distance low-temperature economizer are
100mm。
Further, the preamble bit material meter and rear set material meter respectively have one, are respectively arranged on inlet flue duct and outlet cigarette
The center in road.
Further, the preamble bit expects to be respectively arranged on inlet flue duct and exhaust pass there are three meter and rear set material meters
Both sides and center.
Further, the compressed air pressure that the compressed air hose provides is 1MP.
Further, control system is set in the 3s after preposition electronic rotation flashboard or the closing of postposition electronic rotation flashboard
Afterwards, preposition soot blowing motor-driven valve or postposition soot blowing motor-driven valve are closed.
The beneficial effects of the utility model are: structure is simple, and it is easy to operate, low-level (stack-gas) economizer two sides product can be removed in time
Ash eliminates the influence of dust stratification heat exchanging device heat transfer effect, reduces flue gas resistance, reduces air-introduced machine power consumption, specifically:
(1) timely deashing is found in time
Since stack base is equipped with position material meter, dust stratification amount can be intuitively found in the controls, dust stratification reaches one
Fixed number amount, is actuated for deashing in time.
(2) control is flexible, self-setting
The electric element of deashing device is connected by control system and is controlled, can be in control system self-setting stack base product
Ash quantity carries out deashing to carry out self-starting electronic rotation flashboard.
(3) stable, without noise
Entire deashing device is controlled by control system, and when operation only opens soot-blowing valve, soot cleaning valve, electronic rotation flashboard,
Soot blowing is carried out using compressed air, due to not having storehouse pump, equipment operation will not generate noise, and equipment automatically controls, thermal control element
And other electron component is less, thus it is stable.
(4) reduce the abrasion of low-level (stack-gas) economizer
Since low-level (stack-gas) economizer front is disposed with deashing device, will be removed in advance by the part lime-ash of low-level (stack-gas) economizer,
So the dust burdening by low-level (stack-gas) economizer is reduced, therefore the abrasion of low-level (stack-gas) economizer is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is 7 in the utility model, preposition blowing pipe structural schematic diagram.
In figure, 1, inlet flue duct, 2, exhaust pass, 3, low-level (stack-gas) economizer, 4, preposition ash bucket, 5, control system, 6, preposition
Deashing motor-driven valve, 7, preposition blowing pipe, 8, preposition soot blowing motor-driven valve, 9, compressed air hose, 10, deashing pipe, 11, preamble bit material
Meter, 12, preposition electronic rotation flashboard, 13, postposition ash bucket, 14, postposition soot blowing motor-driven valve, 15, postposition blowing pipe, 16, postposition it is clear
Grey motor-driven valve, 17, postposition electronic rotation flashboard, 18, rear set material meter.
Specific embodiment
It is further to the utility model with reference to the accompanying drawing in order to be more clearly understood that the technical solution of the utility model
Explanation.
The deashing device of low-level (stack-gas) economizer as shown in figures 1 and 2, inlet flue duct 1 and outlet cigarette including low-level (stack-gas) economizer 3
Road 2 further includes the deashing device set on low-level (stack-gas) economizer 3 inlet flue duct 1 and 2 bottom of exhaust pass；
The deashing device includes that preamble bit expects that meter 11, rear set material meter 18, preposition electronic rotation flashboard 12, postposition are electronic
Rotating sluice 17, preposition ash bucket 4, postposition ash bucket 13, preposition deashing motor-driven valve 6, postposition deashing motor-driven valve 16, preposition blowing pipe 7,
Postposition blowing pipe 15, preposition soot blowing motor-driven valve 8, postposition soot blowing motor-driven valve 14, compressed air hose 9, deashing pipe 10 and control system
5；
The preamble bit material meter 11 and rear set material meter 18 are arranged respectively close to the front and rear of low-level (stack-gas) economizer 3, institute
It states inlet flue duct 1 and 2 bottom of exhaust pass is respectively equipped with preposition electronic rotation flashboard 12 and postposition electronic rotation flashboard 17, it is described
Preposition ash bucket 4 and postposition ash bucket 13, institute are connected separately with below preposition electronic rotation flashboard 12 and postposition electronic rotation flashboard 17
It states preposition ash bucket 4 and 13 bottom of postposition ash bucket is connected to deashing pipe 10 respectively, set respectively on the connecting pipe of the deashing pipe 10
There are preposition deashing motor-driven valve 6 and postposition deashing motor-driven valve 16；
The compressed air hose 9 be inserted into after preposition ash bucket 4 and postposition ash bucket 13 respectively respectively with extend vertically into deashing pipe 10
The preposition blowing pipe 7 and postposition blowing pipe 15 of connecting pipe connect, and the compressed air hose 9 is equipped with preposition soot blowing motor-driven valve 8
With postposition soot blowing motor-driven valve 14；The section that extends vertically into of the preposition blowing pipe 7 and postposition blowing pipe 15 is equipped with several soot blowing holes；
Preamble bit material meter 11, rear set material meter 18, preposition electronic rotation flashboard 12, postposition electronic rotation flashboard 17,
Preposition deashing motor-driven valve 6, postposition deashing motor-driven valve 16, preposition soot blowing motor-driven valve 8, postposition soot blowing motor-driven valve 14 are and control system
5 are electrically connected.
In this preferred embodiment, the flashboard length of the preposition electronic rotation flashboard 12 and postposition electronic rotation flashboard 17 with
Inlet flue duct 1 is equal with the bottom width of exhaust pass 2.
In this preferred embodiment, 17 positional distance low temperature of the preposition electronic rotation flashboard 12 and postposition electronic rotation flashboard
Economizer 3 is 100mm.
In this preferred embodiment, the preamble bit material meter 11 and rear set material meter 18 respectively have one, are respectively arranged on import cigarette
The center in road 1 and exhaust pass 2.
In this preferred embodiment, in order to more accurately measure the height of dust stratification, the preamble bit material meter 11 and rear set material
There are three meter 18 is each, it is respectively arranged on the both sides and center of inlet flue duct 1 and exhaust pass 2.
In this preferred embodiment, the compressed air pressure that the compressed air hose 9 provides is 1MP.
In this preferred embodiment, control system 5 is set in preposition electronic rotation flashboard 12 or postposition electronic rotation flashboard 22
After 3s after closing, preposition soot blowing motor-driven valve 8 or postposition soot blowing motor-driven valve 14 are closed.
Working principle: expect that meter 11 and rear set material meter 21 detect the front and rear cigarette of low-level (stack-gas) economizer 3 respectively in preamble bit
Road bottom dust stratification content, when meter 11 is expected in preamble bit or rear 21 dust stratification content of set material meter reach a certain height, control system 5 is vertical
It makes a response preposition deashing motor-driven valve 6 and preposition soot blowing motor-driven valve 8 or postposition deashing motor-driven valve 13 and postposition soot blowing electricity
Dynamic valve 14 is opened, and then control system 5 again opens preposition electronic rotation flashboard 12 or postposition electronic rotation flashboard 22, when preposition
When the dust stratification content of position material meter 11 or rear set material meter 21 drops to setting minimum value, control system 5 is again by preposition electronic rotation
Closed after flashboard 12 or postposition electronic rotation flashboard 22, at the same compressed air by compressed air hose 9 from preposition blowing pipe 7 and after
The soot blowing hole blowout for setting blowing pipe 15, prevents dust from blocking deashing pipe 10, guarantees the defeated ash system that dust can be connected from deashing pipe 10
System is discharged as early as possible.Dust stratification is defeated after 3s after being generally set in preposition electronic rotation flashboard 12 or the closing of postposition electronic rotation flashboard 22
Send completion, deashing motor-driven valve 6 is closed or postposition deashing motor-driven valve 13 after control system 5 closes preposition soot blowing motor-driven valve 8
Postposition soot blowing motor-driven valve 14 is closed after closing.The control system 5 uses Shanghai Xinhua Control Technology (Group) Co., Ltd.
The product (DCS) of production.The air-flow after dust stratification of 3 front and back of low-level (stack-gas) economizer is cleared up in time, into inside low-level (stack-gas) economizer 3
Amount becomes larger, and air-introduced machine can siphon away in time the dust stratification inside low-level (stack-gas) economizer 3.
The utility model structure is simple, easy to operate, can remove low-level (stack-gas) economizer bottom dust stratification in time, eliminates dust stratification pair
The influence of heat exchanger heat transfer effect reduces flue gas resistance, reduces the power consumption of the air-introduced machine for flue gas conveying.The utility model
Operation is simple, safely and effectively conveys dust stratification, achievees the purpose that remove low-level (stack-gas) economizer bottom dust stratification.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (7)
1. a kind of deashing device of low-level (stack-gas) economizer, inlet flue duct (1) and exhaust pass (2) including low-level (stack-gas) economizer (3),
It is characterized in that, further includes the deashing device set on low-level (stack-gas) economizer (3) inlet flue duct (1) and exhaust pass (2) bottom；
The deashing device includes preamble bit material meter (11), rear set material meter (18), preposition electronic rotation flashboard (12), postposition electricity
Dynamic rotating sluice (17), preposition ash bucket (4), postposition ash bucket (13), preposition deashing motor-driven valve (6), postposition deashing motor-driven valve (16),
Preposition blowing pipe (7), postposition blowing pipe (15), preposition soot blowing motor-driven valve (8), postposition soot blowing motor-driven valve (14), compressed air hose
(9), deashing pipe (10) and control system (5)；
The preamble bit material meter (11) and rear set material meter (18) are arranged respectively close to the front and rear of low-level (stack-gas) economizer (3),
The inlet flue duct (1) and exhaust pass (2) bottom are respectively equipped with preposition electronic rotation flashboard (12) and postposition electronic rotation lock
Preposition ash bucket is connected separately with below plate (17), the preposition electronic rotation flashboard (12) and postposition electronic rotation flashboard (17)
(4) and postposition ash bucket (13), the preposition ash bucket (4) and postposition ash bucket (13) bottom are connected to deashing pipe (10) respectively, described
Preposition deashing motor-driven valve (6) and postposition deashing motor-driven valve (16) are respectively equipped on the connecting pipe of deashing pipe (10)；
The compressed air hose (9) be inserted into after preposition ash bucket (4) and postposition ash bucket (13) respectively respectively with extend vertically into deashing pipe
(10) the preposition blowing pipe (7) of connecting pipe and postposition blowing pipe (15) connection, the compressed air hose (9) are equipped with preposition blow
Grey motor-driven valve (8) and postposition soot blowing motor-driven valve (14)；The preposition blowing pipe (7) and postposition blowing pipe (15) extend vertically into section
It is equipped with several soot blowing holes；
Preamble bit material meter (11), rear set material meter (18), preposition electronic rotation flashboard (12), postposition electronic rotation flashboard
(17), preposition deashing motor-driven valve (6), postposition deashing motor-driven valve (16), preposition soot blowing motor-driven valve (8), postposition soot blowing motor-driven valve
(14) it is electrically connected with control system (5).
2. a kind of deashing device of low-level (stack-gas) economizer according to claim 1, which is characterized in that the preposition electronic rotation
The bottom width of the flashboard length of flashboard (12) and postposition electronic rotation flashboard (17) and inlet flue duct (1) and exhaust pass (2)
It is equal.
3. a kind of deashing device of low-level (stack-gas) economizer according to claim 1 or 2, which is characterized in that described preposition electronic
Rotating sluice (12) and postposition electronic rotation flashboard (17) positional distance low-level (stack-gas) economizer (3) are 100mm.
4. a kind of deashing device of low-level (stack-gas) economizer according to claim 1, which is characterized in that the preamble bit material meter
(11) and rear set material meter (18) respectively has one, is respectively arranged on the center of inlet flue duct (1) and exhaust pass (2).
5. a kind of deashing device of low-level (stack-gas) economizer according to claim 1, which is characterized in that the preamble bit material meter
(11) and rear set material meter (18) it is each there are three, be respectively arranged on the both sides and center of inlet flue duct (1) and exhaust pass (2).
6. a kind of deashing device of low-level (stack-gas) economizer according to claim 1, which is characterized in that the compressed air hose
(9) compressed air pressure provided is 1MP.
7. a kind of deashing device of low-level (stack-gas) economizer according to claim 1, which is characterized in that control system (5) setting
After the 3s after preposition electronic rotation flashboard (12) or postposition electronic rotation flashboard (17) are closed, by preposition soot blowing motor-driven valve (8)
Or postposition soot blowing motor-driven valve (14) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299344.0U CN209484636U (en) | 2018-03-05 | 2018-03-05 | A kind of deashing device of low-level (stack-gas) economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299344.0U CN209484636U (en) | 2018-03-05 | 2018-03-05 | A kind of deashing device of low-level (stack-gas) economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209484636U true CN209484636U (en) | 2019-10-11 |
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ID=68109884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820299344.0U Active CN209484636U (en) | 2018-03-05 | 2018-03-05 | A kind of deashing device of low-level (stack-gas) economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209484636U (en) |
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2018
- 2018-03-05 CN CN201820299344.0U patent/CN209484636U/en active Active
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