CN206508760U - The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower - Google Patents
The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower Download PDFInfo
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- CN206508760U CN206508760U CN201720122695.XU CN201720122695U CN206508760U CN 206508760 U CN206508760 U CN 206508760U CN 201720122695 U CN201720122695 U CN 201720122695U CN 206508760 U CN206508760 U CN 206508760U
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Abstract
The utility model provides a kind of pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower, including：An inlet slurry pipeline of slurry circulating pump is connected, a motor-operated isolation valve is provided with；An outlet slurry pipeline of slurry circulating pump is connected, a first manual isolating valve is provided with；A purging pipeline of the outlet slurry pipeline is communicated in, one second manual isolation valve is provided with.By setting manual isolation valve door and purging flue in the desulfurization slurry circulating line of serum recycle pump discharge, during in order to the annex emerged in operation failure such as slurry circulating pump body, expansion joint, operating flue gas can be isolated manually, ensure that equipment deficiency can be eliminated in time, and maintainer is not injured by flue gas during defect elimination.Solve existing equipment system design defect problem；And eliminate desulfurization single equipment reason can not off-the-line maintenance cause the exceeded major hidden danger for even resulting in shutdown of environment protection digital.
Description
Technical field
The utility model is related to purifying coal-fired flue gas technical field, more particularly to desulfuration absorbing tower, and in particular to one kind is de-
The pipe-line system of the supporting slurry circulating pump in sulphur absorption tower.
Background technology
Current national environmental protection is to the standard limit of smog release more and more highers of Thermal Power Enterprises, and during slurry circulating pump is FGD systems
Visual plant, the influence to desulfuration efficiency is very large.Therefore, the reliability for improving slurry circulating pump on-bne repair is to ensure that
One of important prerequisite of flue gas qualified discharge.
At present, desulphurization system is none-disk terminal operation, when serum recycle failure of pump, for system safety operation, pollutant
Qualified discharge, need to be to the online repairing of slurry circulating pump.And conventional large-sized unit is followed in desulfurization ring slurries pump pipe-line system, pump discharge pipe
Road valveless, only sets an electrically operated valve, it is impossible to which flue gas is effectively isolated in pump intake pipeline, cigarette in absorption tower during maintenance
Gas can flow backward to serum recycle pump house, and influence service work is normally carried out and seriously threatens health of human body；In order to solve recycle slurry
Often two ways is taken in the maintenance isolating problem of liquid pump, current engineering：One to be that pump discharge pipeline aerating is encapsulated stifled, and two be to pump out
Mouth pipeline installs blind plate additional, but all wastes time and energy, and overhauls extremely inconvenient；In addition, the easy aging of air bag, the blowing pressure is difficult to grasp,
Easily cause rubber pneumatic bag damaged, short life；And air bag easily comes off with the sebific duct being connected, cause closure not tight.
Desulphurization system unicity and fluctuation of service are thereby resulted in.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of pipeline of the supporting slurry circulating pump of desulfuration absorbing tower
System, by setting manual isolation valve door and purging flue in the desulfurization slurry circulating line of serum recycle pump discharge, in order to
During the annex emerged in operation failure such as slurry circulating pump body, expansion joint, operating flue gas can be isolated manually, it is ensured that equipment
Defect can be eliminated in time, and maintainer is not injured by flue gas during defect elimination.Existing equipment system design defect is solved to ask
Topic；And eliminate desulfurization single equipment reason can not off-the-line maintenance cause the exceeded major hidden danger for even resulting in shutdown of environment protection digital.
For up to above-mentioned purpose, the concrete technical scheme that the utility model is taken is：
A kind of pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower, including：
An inlet slurry pipeline of slurry circulating pump is connected, a motor-operated isolation valve is provided with；
An outlet slurry pipeline of slurry circulating pump is connected, a first manual isolating valve is provided with；
A purging pipeline of the outlet slurry pipeline is communicated in, one second manual isolation valve is provided with.
Further, the first manual isolating valve is a high temperature butterfly valve.
Further, the valve plate outer surface and valve inner surface of the high temperature butterfly valve are respectively provided with preservative treatment layer.
Further, the valve rod of the high temperature butterfly valve is driven by worm-gear speed reducer.
Further, the high temperature butterfly valve accesses outlet slurry pipeline by flange arrangement.
Further, the connectivity part of the purging pipeline and outlet slurry pipeline is located under the first manual isolating valve
Trip.
Further, the desulfuration absorbing tower includes a demister, is configured with blow device, and blow device includes purging wind
Road, the purging pipeline is communicated to the purging air channel.
Further, the purging pipeline is obliquely installed relative to the outlet slurry pipeline.
Further, second manual isolation valve is selected from butterfly valve or push-pull valve.
By taking above-mentioned technical proposal, the annexes such as slurry circulating pump body, expansion joint are prevented using two kinds of effective measures
Occur the situation that flue gas flows backwards leakage during maintenance, eliminate existing design defect, it is ensured that the safe and stable operation of system；And control
It is convenient, labour is liberated, lowers labor service and maintenance cost；Equipment reliability of operation can be improved.
Brief description of the drawings
Fig. 1 is the structural representation of the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower in the embodiment of the utility model one
Figure.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description.
As shown in figure 1, in one embodiment there is provided a kind of pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower, should
For desulfuration absorbing tower 1, including：The inlet slurry pipeline 3 of slurry circulating pump 2 is connected, motor-operated isolation valve 4 is provided with；Even
The outlet slurry pipeline 7 of slurry circulating pump 2 is connect, first manual isolating valve 6 is provided with；It is communicated in outlet slurry pipeline 7
Pipeline 8 is purged, the second manual isolation valve 9 is provided with.
Wherein, first manual isolating valve 6 is high temperature butterfly valve.Its valve plate outer surface and valve inner surface are respectively provided with an anti-corrosion
Process layer (not shown), it is to avoid normal to supply to corrode during slurry, general handled by encapsulated processing or coating of preservative treatment layer is obtained
.In addition, the valve rod of high temperature butterfly valve is driven by worm-gear speed reducer, not only facilitate manipulation, and non-return can be realized, determined
Position.High temperature butterfly valve accesses outlet slurry pipeline 7 by flange arrangement, and the flange arrangement carries seal, it is ensured that when normally for slurry,
Slurries seepage will not be produced.
As schemed, the connectivity part of purging pipeline 8 and outlet slurry pipeline 7 is located at the downstream of the first manual isolating valve 6.
Desulfuration absorbing tower 1 includes a demister (not shown), and it is configured with blow device, and blow device includes purging air channel
(not shown), in certain embodiments, purging pipeline 8 are communicated to purging air channel, by the blow device air feed of demister.Certainly
It can set and individually enshrine and worship device, such as booster fan.
In addition, being obliquely installed with reference to Fig. 1 purging pipelines 8 relative to outlet slurry pipeline 7, its angle of inclination is generally 15 °
To 30 °, slurries flow direction when purging pipeline air supply direction is along for slurry.The second manual isolation valve 9 that control purging pipeline 8 is opened and closed
Selected from butterfly valve or push-pull valve.
Current heat-engine plant desulfurized system is none-disk terminal operation, when serum recycle failure of pump, for system safety operation, dirt
Thing qualified discharge is contaminated, need to be to the online repairing of slurry circulating pump.But the outlet of slurry circulating pump in traditional serum recycle system
Road valveless, it is impossible to be effectively isolated to flue gas, flue gas can flow backward to serum recycle pump house, influence inspection in absorption tower during maintenance
Repair progress working properly and seriously threaten health of human body.And the system in above-described embodiment is applied in desulphurization system, can
When needing to overhaul slurry circulating pump or expansion joint, flue gas is isolated by way of closing serum outlet pipeline, also,
Carry out secondary protection by purging pipeline, it is to avoid because valve air-tightness is not good or reveals during valve invalidation, also, need it is same
When being overhauled to slurry circulating pump and valve, by purging air-supply flue gas can be avoided to flow backwards, in multiple actual thermal power plants
After being applied in desulfurizing item, preferable effect is given play to, overhaul efficiency is improved.
Above-described embodiment is especially suitable for obtaining by transforming legacy equipment, need to only be installed additional in slurry circulating pump outlet conduit
Manual isolation valve door, and connect purging pipeline；On desulphurization system absorption tower, serum recycle pump discharge is transformed part pipeline and increased
Manually-operated gate.Increase hand-operated valve gate segment slurry pipe road need to be sliced off does line with rubber preservative treatment again behind part.
To sum up, the pipe-line system of above-described embodiment description has advantages below：
Installation and repairing is convenient, the principle different using received shipment row is stopped, and is conducive to repair and maintenance, the method for operation is safe and efficient,
Cumbersome system need not be carried out to set.
Stable operation effect substantially, because system needs reason, can realize desulfurization by auxiliary device in the night circulatory system,
Such as expansion joint, the on-bne repair of pump body so that serum recycle system equipment defect can be overhauled in time, improve it
Operational reliability, is that the qualified discharge of pollutant lays the foundation.
Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is based on
Embodiment in the utility model, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of the utility model protection.
Claims (9)
1. a kind of pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower, it is characterised in that including：
An inlet slurry pipeline of slurry circulating pump is connected, a motor-operated isolation valve is provided with；
An outlet slurry pipeline of slurry circulating pump is connected, a first manual isolating valve is provided with；
A purging pipeline of the outlet slurry pipeline is communicated in, one second manual isolation valve is provided with.
2. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 1, it is characterised in that described first
Manual isolation valve is a high temperature butterfly valve.
3. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 2, it is characterised in that the high temperature
The valve plate outer surface and valve inner surface of butterfly valve are respectively provided with preservative treatment layer.
4. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 2, it is characterised in that the high temperature
The valve rod of butterfly valve is driven by worm-gear speed reducer.
5. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 2, it is characterised in that the high temperature
Butterfly valve accesses outlet slurry pipeline by flange arrangement.
6. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 1, it is characterised in that the purging
The connectivity part of pipeline and outlet slurry pipeline is located at the downstream of the first manual isolating valve.
7. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 1, it is characterised in that the desulfurization
Absorption tower includes a demister, is configured with blow device, and blow device includes purging air channel, and the purging pipeline is communicated to described
Purge air channel.
8. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 1, it is characterised in that the purging
Pipeline is obliquely installed relative to the outlet slurry pipeline.
9. the pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower as claimed in claim 1, it is characterised in that described second
Manual isolation valve is selected from butterfly valve or push-pull valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122695.XU CN206508760U (en) | 2017-02-10 | 2017-02-10 | The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122695.XU CN206508760U (en) | 2017-02-10 | 2017-02-10 | The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower |
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| Publication Number | Publication Date |
|---|---|
| CN206508760U true CN206508760U (en) | 2017-09-22 |
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| CN201720122695.XU Active CN206508760U (en) | 2017-02-10 | 2017-02-10 | The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607857A (en) * | 2022-01-28 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Environment-friendly energy-saving desulfurization system |
-
2017
- 2017-02-10 CN CN201720122695.XU patent/CN206508760U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607857A (en) * | 2022-01-28 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Environment-friendly energy-saving desulfurization system |
| CN114607857B (en) * | 2022-01-28 | 2024-04-19 | 华能国际电力股份有限公司德州电厂 | Environment-friendly energy-saving desulfurization system |
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