CN206929786U - A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger - Google Patents
A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger Download PDFInfo
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- CN206929786U CN206929786U CN201720827558.6U CN201720827558U CN206929786U CN 206929786 U CN206929786 U CN 206929786U CN 201720827558 U CN201720827558 U CN 201720827558U CN 206929786 U CN206929786 U CN 206929786U
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Abstract
The utility model discloses a kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, including ash discharge funnel, electric feeder and air flume；The top enlarging of ash discharge funnel is connected to the preceding enlarging stack base of heat exchanger, bottom osculum is connected to the entrance of electric feeder by instant ash conveying pipe, the outlet of electric feeder is connected to the feeding mouth on air flume cell wall, air flume upper end is connected to blower fan by air inlet, and lower end is connected to collection apparatus for ash by discharging opening.The utility model can drain the cigarette ash of flue enlarging position at any time by simple structure, and pre- anti-ash product is stifled；And it is simple in construction, easy to use, the artificial deashing of blowing out is reduced, reduces cost of labor.
Description
Technical field
It the utility model is related to a kind of dust removing system, and in particular to one kind is used for the stifled ash of the anti-product of flue gas waste heat recovery heat exchanger
Dust removing system.
Background technology
Flue gas waste heat recovery heat exchanger has the advantages of many, has very big development to use space in coal-burning power plant；Big
Capacity coal unit low temperature exhaust heat is recycled in engineering, and flue gas waste heat recovery heat exchanger is generally use method, is widely used；
Heat unnecessary in flue gas is absorbed using flue gas waste heat recovery heat exchanger, is discharged after being heated for preheated air or by neat stress
Deng making heat rationally utilize, reduce thermal waste, operating cost substantially reduces.In current national energy-saving emission reduction policy overall background
Under, the product has very big popularizing application prospect.
Flue gas waste heat recovery heat exchanger usually requires bigger space to arrange；Normally reach absorption heat
Requirement need different heat exchange area；Need the more big then heat exchanger space-consuming of heat exchange area bigger；So heat exchanger is installed
When in flue, it is necessary to flue is carried out into enlarging, flue gas flow rate can substantially reduce in this segment distance of flue enlarging, so as to lead
Flue flared section is caused to form dust stratification, so as to influence the heat transfer effect of heat exchanger；At present to avoid dust stratification excessively serious, it is typically designed
The arrangement length that heat exchanger flows to section in flue can be extended during heat exchanger, so as to reduce the expansion size in flue cross section direction,
Make flue gas flow rate reduce amplitude to reduce, so as to reduce dust stratification；But because the heat exchanger for prolonging flue gas flow direction direction is long, heat exchanger
The flue gas resistance of section also accordingly improves, it is impossible to which the flue gas resistance control for reaching whole flue requires.
Utility model content
The purpose of this utility model is that providing one kind can effectively solve the problem that flue gas waste heat recovery heat exchanger product blocks up grey problem,
Pre- anti-ash product is stifled, reduces the artificial deashing of blowing out, and the anti-product of flue gas waste heat recovery heat exchanger that is used for for reducing cost of labor blocks up ash
Dust removing system.Technical scheme is as follows：
A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, including ash discharge funnel, electric feeder
And air flume；The top enlarging of ash discharge funnel is connected to the preceding enlarging stack base of heat exchanger, and bottom osculum passes through immediately defeated
Grey pipeline is connected to the entrance of electric feeder, and the outlet of electric feeder is connected to the feeding mouth on air flume cell wall, empty
Gas skewed slot upper end is connected to blower fan by air inlet, and lower end is connected to collection apparatus for ash by discharging opening.
Further, the ash conveying pipe immediately is provided with first manual gate valve, on the tube wall above first manual gate valve
The flushing water blow-off line for leading to sewage ditch is additionally provided with, flushing water blow-off line is provided with the second hand sluice valve.
Further, fabric air-permeability layer is provided with the air flume, fabric air-permeability layer will be divided into inside air flume
The cigarette ash passage on top and the air duct of bottom, cigarette ash passage connect the feeding mouth and discharging opening, air duct and are connected to
The air inlet.
Further, the ash discharge funnel includes the first ash discharge funnel and the second ash discharge funnel.
The beneficial effects of the utility model are：
1）The utility model can drain the cigarette ash of flue enlarging position, pre- anti-ash product at any time by simple structure
It is stifled；
2）The utility model is simple in construction, easy to use, Electronic control, without manual control；
3）The effectively pre- anti-ash product of the utility model is stifled, reduces the artificial deashing of blowing out, reduces cost of labor.
Brief description of the drawings
Fig. 1 is that the dust removing system that the utility model is used for the stifled ash of the anti-product of flue gas waste heat recovery heat exchanger is structural representation.
When Fig. 2 is that flue gas waste heat recovery heat exchanger is run, cigarette ash drains path signal.
When Fig. 3 is that the stoppage in transit of flue gas waste heat recovery heat exchanger is rinsed, flushing water drains path signal.
In figure：1- the first ash discharge funnels；2- the second ash discharge funnels；The instant ash conveying pipes of 3-；4- flushing water blow-off lines；5-
First manual gate valve；The hand sluice valves of 6- second；7- electric feeders；8- air flumes, 81- feeding mouths；82- air inlets；83- goes out
Material mouth；84- fabric air-permeability layers；9- blower fans.
Embodiment
The utility model is described in further details with specific embodiment below in conjunction with the accompanying drawings.As shown in figure 1, a kind of use
The dust removing system of ash, including ash discharge funnel, electric feeder 7 and air flume 8 are blocked up in the anti-product of flue gas waste heat recovery heat exchanger；Row
The top enlarging of grey funnel is connected to the preceding enlarging stack base of heat exchanger（That is accumulatingdust position）, bottom osculum passes through immediately defeated
Grey pipeline 3 collects, and is connected to the entrance of electric feeder 7, and the outlet of electric feeder 7 is connected on the cell wall of air flume 8
Feeding mouth 81, the upper end of air flume 8 is connected to blower fan 9 by air inlet 82, and lower end is connected to collection ash dress by discharging opening 83
Put.
The ash discharge funnel of the present embodiment has two, the first ash discharge funnel 1 and the second ash discharge funnel 2, the first ash discharge funnel 1,
Enlarging stack base before the upper end of second ash discharge funnel 2 connection heat exchanger（That is accumulatingdust position）, lower end passes through pipe influx.
The instant ash conveying pipe 3 of the present embodiment is provided with first manual gate valve 5, on the tube wall of the top of first manual gate valve 5
The flushing water blow-off line 4 for leading to sewage ditch is additionally provided with, flushing water blow-off line 4 is provided with the second hand sluice valve 6.So set
Cigarette ash can separately be discharged with flushing water, avoid that tube performance can be influenceed after being mutually mixed；First is closed when blowing out is rinsed
Hand sluice valve 5 can avoid flushing water from flowing into instant ash conveying pipe 3；The second hand sluice valve 6 is closed in normal operation can avoid cigarette
Ash deposition is in flushing water blow-off line 4.
The air flume 8 of the present embodiment tilts down certain angle when installing；So set to facilitate and blown by air
The cigarette ash risen can smoothly be discharged into collection apparatus for ash along cigarette ash passage.And it is provided with high temperature modification air flume fabric air-permeability in air flume 8
Layer 84, fabric air-permeability layer 84 will be divided into the cigarette ash passage on top and the air duct of bottom inside air flume 8, cigarette ash passage connects
Lead to the feeding mouth 81 and discharging opening 83, air duct is connected to the air inlet 82.So being arranged in the presence of blower fan 9 can
To allow the air of the bottom of air flume 8 to blow afloat cigarette ash by air-permeable layer.
During flue gas waste heat recovery heat exchanger normal operation, flue gas is reduced by flue flared section, flue gas flow rate, flue gas
In cigarette ash sink, fall into the first ash discharge funnel 1, in the second ash discharge funnel 2, then continue to glide by pipeline, to bifurcation mouth
Place；It is closed mode that now second at flushing water blow-off line 4, which receives gate valve 6, the first manual lock at instant ash conveying pipe 3
Valve 5 is open mode；Cigarette ash continues to glide by instant ash conveying pipe 3, and to electric feeder 7, electric feeder 7 can make cigarette ash
More smoothly glide；Electric feeder 7 is open mode by system control, and cigarette ash continues through electric feeder 7 and glided, passes through
The feeding mouth of pipeline air inlet skewed slot 8；Cigarette ash falls into the top cigarette ash passage of air flume 8, simultaneously because the acting air of blower fan 9
Cigarette ash is blown afloat by air-permeable layer by the bottom of air flume 8, because air flume 8 is inclined, cigarette ash can be under air flume 8
Slide into collection apparatus for ash.This process is ringing process, and cigarette ash is discharged at any time in flue, the feelings that product blocks up ash would not occurs
Condition, it is as shown in Figure 2 that cigarette ash drains path.
, it is necessary to be rinsed to flue and heat exchanger, because the first ash discharge funnel when flue gas waste heat recovery heat exchanger is stopped transport
1st, the second ash discharge funnel 2 is in low level, and flushing water flows into the first ash discharge funnel 1, the second ash discharge funnel 2, then by pipeline after
Afterflow is moved, to bifurcation mouth；Now first manual gate valve 5 is closed mode at instant ash conveying pipe 3, flushing water blow-off line 4
It is open mode to locate the second hand sluice valve 6；Flushing water flows into sewage ditch by flushing water blow-off line 4, and flushing water drains path
As shown in Figure 3.
The size specification of each part can determine that ash discharge amount when heat exchanger is run can be according to flue gas dust burdening by ash discharge amount
And flue gas flow rate calculates.
The present embodiment can be blocked up ash system by simple anti-product and be solved during current underload before flue gas waste heat recovery heat exchanger
Dust stratification seriously causes the problem of heat exchanger using effect difference, and simple in construction, simple to operate, practical.
Claims (4)
1. a kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, it is characterised in that including ash discharge funnel, electricity
Dynamic batcher（7）And air flume（8）；The top enlarging of ash discharge funnel is connected to the preceding enlarging stack base of heat exchanger, ash discharge
The bottom osculum of funnel passes through instant ash conveying pipe（3）It is connected to electric feeder（7）Entrance, electric feeder（7）Go out
Mouth is connected to air flume（8）Feeding mouth on cell wall（81）, air flume（8）Upper end passes through air inlet（82）It is connected to blower fan
（9）, lower end passes through discharging opening（83）It is connected to collection apparatus for ash.
2. the dust removing system according to claim 1 that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, it is characterised in that
The instant ash conveying pipe（3）It is provided with first manual gate valve（5）, first manual gate valve（5）It is additionally provided with the tube wall of top logical
To the flushing water blow-off line of sewage ditch（4）, flushing water blow-off line（4）It is provided with the second hand sluice valve（6）.
3. the dust removing system according to claim 1 that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, it is characterised in that
The air flume（8）It is interior to be provided with fabric air-permeability layer（84）, fabric air-permeability layer（84）By air flume（8）Inside is divided into top
Cigarette ash passage and the air duct of bottom, cigarette ash passage connect the feeding mouth（81）And discharging opening（83）, air duct connection
To the air inlet（82）.
4. the dust removing system according to claim 1 that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger, it is characterised in that
The ash discharge funnel includes the first ash discharge funnel（1）With the second ash discharge funnel（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827558.6U CN206929786U (en) | 2017-07-10 | 2017-07-10 | A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720827558.6U CN206929786U (en) | 2017-07-10 | 2017-07-10 | A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929786U true CN206929786U (en) | 2018-01-26 |
Family
ID=61354114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720827558.6U Active CN206929786U (en) | 2017-07-10 | 2017-07-10 | A kind of dust removing system that ash is blocked up for the anti-product of flue gas waste heat recovery heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929786U (en) |
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2017
- 2017-07-10 CN CN201720827558.6U patent/CN206929786U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 611830 Taixing Avenue, Dujiangyan Economic Development Zone, Chengdu, Sichuan Province, No. 3 Patentee after: China Electric Power Construction Group Dujiang Power Equipment Co. Ltd. Address before: 611830 Taixing Avenue, Sichuan Dujiangyan Economic Development Zone, Dujiangyan City, Chengdu, Sichuan Province, No. 3 Patentee before: Dujiang Power Equipment Factory |