CN206739334U - The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus - Google Patents
The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus Download PDFInfo
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- CN206739334U CN206739334U CN201720571144.1U CN201720571144U CN206739334U CN 206739334 U CN206739334 U CN 206739334U CN 201720571144 U CN201720571144 U CN 201720571144U CN 206739334 U CN206739334 U CN 206739334U
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- dust stratification
- cleaning plant
- bottom dust
- flue gas
- waste heat
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Abstract
The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus, belongs to the auxiliary facility of heat power plant boiler tail flue gas waste heat recovery apparatus, it is characterized in that closing on flue entrance and being provided with bottom dust stratification cleaning plant below flue；The bottom dust stratification cleaning plant is made up of the electrical ball valve of a pipeline and pipe ends, and pipeline is provided with some purge holes；The electrical ball valve is controlled by control system.The utility model have it is simple in construction, it is safe for operation and stably without noise.
Description
Technical field
The invention belongs to the auxiliary facility of heat power plant boiler tail flue gas waste heat recovery apparatus.
Background technology
In thermal power plant, according to the chemistry of the engineering ash quantity of slag and lime-ash, physical characteristic, deduster and ash discharge dress are selected
The type put.
Big-and-middle-sized power plant combines defeated grey mode using strength, machinery or both and flying dust is focused on into storage ash from each ash discharge point
Behind storehouse, according to different needs or humidification stirring is directly loadable into dump truck or belt feeder is transported to ash disposal area and rolled, or directly fills
Enter and comprehensive utilization point is transported to outside tank car, or add water slurrying high concentration phase flow pipeline hydraulic transportation to ash disposal area.
The flue-gas temperature of general station boiler discharge is all higher, in order to utilize heat in flue gas to greatest extent, carries
The utilization rate of high-energy source, the utilization of waste heat recovery turn into the inexorable trend of electricity power enterprise.Soot cleaning system turns into essential therewith
Device, bottom dust stratification clean turn into a great problem.
The content of the invention
In order to remove the preceding bottom dust stratification of boiler tail flue gas waste heat recovery apparatus in time, bottom dust stratification heat exchanging is eliminated
The influence of device heat transfer effect, the present invention provide the preceding bottom product of boiler tail flue gas waste heat recovery apparatus of automatic cleaning bottom dust stratification
Grey cleaning plant.
Technical scheme：The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus, it is characterized in that
Close on flue entrance and bottom dust stratification cleaning plant is installed below flue；The bottom dust stratification cleaning plant is by a pipe
Road and the electrical ball valve of pipe ends composition, pipeline are provided with some purge holes；The electrical ball valve is controlled by control system.
Control system is connected between two electrical ball valves；
The control system uses Distributed Control System.
Bottom deashing device of the present invention can remove the preceding bottom dust stratification of boiler tail flue gas waste heat recovery apparatus in time, eliminate
The influence of dust stratification heat exchanging device heat transfer effect, reduce flue gas resistance so that air-introduced machine power consumption reduces.
The preceding bottom dust stratification of boiler tail flue gas waste heat recovery apparatus can be removed in time, eliminated bottom dust stratification heat exchanging device and changed
The influence of thermal effect, so as to reduce air-introduced machine power consumption, realize the purpose of device bottom dust stratification cleaning operation automatic running.
It is more of the invention compared with existing purge mode that there is advantages below：
（1）Arrangement is simple, stable
In ash-transmission system, deashing device is actually independently to be arranged in stack base, and it is not as other deashing devices
Arrangement, also do not require to increase ash conveying pipe and ash bucket, therefore do not consider that ash conveying pipe wears, as long as arranging one in stack base
An electrical ball valve can is installed in straight-through pipeline, both sides respectively, therefore controls fairly simple, control ball valve switch, therefore
Running and comparing is stable.
（2）There is no noise, it is safe for operation
Air-introduced machine negative pressure form is used during operation, it is not as other purge modes, is also not required to increase storehouse pump, as long as opening
Electrical ball valve, deashing device bring into operation, therefore do not produce noise, also ensure safety in operation.
（3）Timely abatement apparatus bottom dust stratification
Connection model is formed using air-introduced machine negative pressure form and air during operation, attracts air to purge stack base
Operation, unlike other purge modes easily cause, defeated ash is not smooth, and stack base dust stratification can not be cleared up in time before equipment, therefore, i.e.,
Make to make dust product to clear up in time in device bottom using other soot-blowing mode soot blowings.
Brief description of the drawings
Fig. 1 is the structure chart of dust stratification cleaning plant in bottom in the utility model.
Fig. 2 is structure chart of the present utility model.
In figure, 1, control system, 2, purge hole, 3, pipeline, 4, electrical ball valve, 5, bottom dust stratification cleaning plant installation position
Put.
Embodiment
Shown in Fig. 1, the present invention includes flue, it is characterized in that closing on flue entrance and bottom product being provided with below flue
Grey cleaning plant；The bottom dust stratification cleaning plant is made up of the electrical ball valve 4 of a pipeline 3 and pipe ends, is set on pipeline 1
There are 2 holes of some purgings；The electrical ball valve is controlled by control system 1.
Control system is connected between two electrical ball valves；
The control system uses the product (DCS) of Shanghai Xinhua Control Technology's production.
DCS is extremely widely applied in all trades and professions such as electric power, metallurgy, petrochemical industry at present.
Claims (1)
1. the preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus, it is characterized in that closing on flue entrance and being located at cigarette
Bottom dust stratification cleaning plant is installed below road；The bottom dust stratification cleaning plant is by a pipeline and the electric ball of pipe ends
Valve group is into pipeline is provided with some purge holes；The electrical ball valve is controlled by control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571144.1U CN206739334U (en) | 2017-05-22 | 2017-05-22 | The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571144.1U CN206739334U (en) | 2017-05-22 | 2017-05-22 | The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206739334U true CN206739334U (en) | 2017-12-12 |
Family
ID=60566497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720571144.1U Active CN206739334U (en) | 2017-05-22 | 2017-05-22 | The preceding bottom dust stratification cleaning plant of boiler tail flue gas waste heat recovery apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206739334U (en) |
-
2017
- 2017-05-22 CN CN201720571144.1U patent/CN206739334U/en active Active
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