CN204162090U - Pneumatic ash handling voltage stabilizing anti-blockage type transmission pump - Google Patents
Pneumatic ash handling voltage stabilizing anti-blockage type transmission pump Download PDFInfo
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- CN204162090U CN204162090U CN201420620440.2U CN201420620440U CN204162090U CN 204162090 U CN204162090 U CN 204162090U CN 201420620440 U CN201420620440 U CN 201420620440U CN 204162090 U CN204162090 U CN 204162090U
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- voltage stabilizing
- ash
- adjustment door
- pump housing
- delivery duct
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Abstract
The utility model relates to a kind of pneumatic ash handling voltage stabilizing anti-blockage type transmission pump, it comprises the pump housing, feeding gate, exhaust valve, voltage stabilizing discharging adjustment door, inlet valve and fluidized gas adjustment door, described feeding gate is arranged on the top center of the pump housing, described exhaust valve is arranged on the side, top of the pump housing, described voltage stabilizing discharging adjustment door is arranged on the bottom of the pump housing and is connected with the delivery duct of delivery system, and described fluidized gas adjustment door is connected with the fluidisation nozzles of pump body by delivery duct; Described voltage stabilizing discharging adjustment door can according to described delivery duct force value conversion aperture size, it is arranged on below pneumatic ash handling delivery system dust collector ash hopper or below feed bin, its feeding gate communicates with ash bucket ash hole, its voltage stabilizing discharging adjustment door is connected with the pipeline of Ash Conveying System, the utility model and can carry operating mode to carry out the adjustment of actv. program controlled automatic according to fly ash characteristic in real time, ensure that ash conveying pipe does not block, improve the traffic capacity of pneumatic ash handling delivery system continous-stable.
Description
Technical field
The utility model relates to a kind of for the ash disposal voltage stabilizing conveying anti-blocking plug device in the pneumatic ash handling delivery systems such as fly ash, specifically a kind of pneumatic ash handling voltage stabilizing anti-blockage type transmission pump.
Background technology
Pneumatic ash handling delivery system is widely used in thermal powerplant, but because of the change of the operating condition such as fire coal species, sudden load change fuel oil be combustion-supporting, the characteristics such as fly ash particle diameter, density, adhesiveness, temperature are changed simultaneously, in operational process, cause pneumatic ash handling delivery system to occur defeated ash difficulty, pipe choking, have influence on the phenomenon of normal operation of upper class equipment, system further.Existing pneumatic ash handling delivery system, can not according to operating condition in time, without the continuous operation of adjustment air-transport system parameter, guarantee pneumatic ash handling delivery system automatically when human intervention.When there is defeated ash difficulty, pipe choking in pneumatic ash handling delivery system, air-transport system is stopped transport because of process pipe choking, and then dust-precipitator ash bucket dust stratification is aggravated, ash bucket dust stratification causes Electric Field in ESP short circuit stoppage in transit, dust concentration discharge beyond standards, even occurs that ash bucket dust stratification causes the accident of ash bucket cracking, unit outage.
Summary of the invention
Be to solve pneumatic ash removal system in prior art in the purpose of this utility model and the problem of delivery duct blocking often occurs.For the utility model of dealing with problems provides a kind of pneumatic ash handling voltage stabilizing anti-blockage type transmission pump, it comprises the pump housing, feeding gate, exhaust valve, inlet valve and fluidized gas adjustment door, and be provided with fluidisation nozzles in the described pump housing, described feeding gate is arranged on the top center of the pump housing; Described exhaust valve is arranged on the side, top of the pump housing; Described fluidized gas adjustment door is connected with the fluidisation nozzles of pump body by delivery duct, also has voltage stabilizing discharging adjustment door, described voltage stabilizing discharging adjustment door is arranged on the bottom of the pump housing and is connected with the delivery duct of delivery system, and described voltage stabilizing discharging adjustment door can according to described delivery duct force value conversion aperture size.
The utility model and can carry operating mode to carry out the adjustment of actv. program controlled automatic according to fly ash characteristic in real time, and the discharge quantity of transmission pump always adapts to the traffic capacity of ash conveying pipe, does not block at guarantee ash conveying pipe.Improve the traffic capacity of pneumatic ash handling delivery system continous-stable to greatest extent, thus ensure the upper class equipment of pneumatic ash handling delivery system, the safe and stable operation of system.
Accompanying drawing explanation
Fig. 1 the utility model structural representation.
In figure: ash bucket 1, exhaust valve 2, feeding gate 3, the pump housing 4, voltage stabilizing discharging adjustment door 5, delivery duct 6, delivery duct pressure transformer 7, inlet valve 8, fluidized gas adjustment door 9, fluidisation nozzles 10.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is illustrated:
The utility model is arranged on below pneumatic ash handling delivery system dust collector ash hopper or below feed bin, and its feeding gate communicates with ash bucket ash hole, and its voltage stabilizing discharging adjustment door is connected with the pipeline of Ash Conveying System.Its concrete structure is: a kind of pneumatic ash handling voltage stabilizing anti-blockage type transmission pump, it comprises the pump housing 4, feeding gate 3, exhaust valve 2, voltage stabilizing discharging adjustment door 5, inlet valve 8 and fluidized gas adjustment door 9, be provided with fluidisation nozzles 10 in the described pump housing 4, described feeding gate 3 is arranged on the top center of the pump housing 4; Described exhaust valve 2 is arranged on the side, top of the pump housing 4; Described voltage stabilizing discharging adjustment door 5 is arranged on the bottom of the pump housing 4, and is connected with the delivery duct 6 of delivery system; Described fluidized gas adjustment door 9 is connected with the fluidisation nozzles 10 of the pump housing 4 inside by delivery duct 6; Described voltage stabilizing discharging adjustment door 5 can according to described delivery duct 6 force value conversion aperture size.
The delivery duct pressure transformer 7 for monitoring manifold pressure value is generally provided with in pneumatic ash removal system, described voltage stabilizing discharging adjustment door 5 is connected with delivery duct pressure transformer 7 by PLC, PLC obtains line pressure value V from delivery duct pressure transformer 7, then according to the valve opening of certain rule adjustment voltage stabilizing discharging adjustment door 5, transmission pump is controlled to the discharge quantity in pipeline.
Working process of the present utility model is:
1, conveying is initial
Feeding gate 3 on the pump housing 4 and exhaust valve 2 are all open mode, and voltage stabilizing discharging adjustment door 5, fluidized gas adjustment door 9, inlet valve 8 are all closed condition, delivery duct pressure transformer 7 force value V=0.
2, system running
The fly ash that ash bucket 1 collection work equipment produces, a certain amount of rear fly ash falls into the pump housing 4.Be set with a discharge setting value in the pump housing 4, when the fly ash in the pump housing 4 reaches this setting value, such as, when fly ash reaches 2/3 of the pump housing 4 volume in the pump housing 4, feeding gate 3 and exhaust valve 2 are closed.
3, pump housing ash discharge
After feeding gate 3 and exhaust valve 2 are closed, time delay 10 second, fluidized gas adjustment door 9 is opened, and carries out fluidisation to fly ash in the pump of storehouse; Inlet valve 8 is opened, time delay 2 second, and voltage stabilizing discharging adjustment door 5 is opened and carried out blanking.
4, pump housing discharge quantity adjustment
The valve initial opening of described voltage stabilizing discharging adjustment door 5 can be set to 30%, and as the force value V<0.18MPa of delivery duct pressure transformer 7, voltage stabilizing discharging adjustment door 5 aperture is 100%; As the force value V>0.28Mpa of delivery duct pressure transformer 7, the aperture of voltage stabilizing discharging adjustment door 5 is 0; When the force value V of delivery duct pressure transformer 7 is between 0.18 ~ 0.28MPa, aperture=[(0.28 – V)/(0.28-0.18)] * 100% of voltage stabilizing discharging adjustment door 5;
5, pump housing blanking completes
When delivery duct pressure transformer 7 force value is down to 0.07MPa, voltage stabilizing discharging adjustment door 5, fluidized gas adjustment door 9, inlet valve 8 are closed in time delay 3 after second, this time course of conveying terminates.Next course of conveying starts, and after voltage stabilizing discharging regulating valve 5, fluidized gas adjustment door 9 and inlet valve 8 are closed, time delay 5 second, feeding gate 3 and exhaust valve 2 are all opened, and the fly ash in ash bucket 1 or feed bin falls into the pump housing 4, starts new round charging, conveying starts.
The utility model and can carry operating mode to carry out the adjustment of actv. program controlled automatic according to fly ash characteristic in real time, and the discharge quantity of transmission pump always adapts to the traffic capacity of ash conveying pipe, does not block at guarantee ash conveying pipe.Improve the traffic capacity of pneumatic ash handling delivery system continous-stable to greatest extent, thus ensure the upper class equipment of pneumatic ash handling delivery system, the safe and stable operation of system.
Claims (1)
1. a pneumatic ash handling voltage stabilizing anti-blockage type transmission pump, it comprises the pump housing, feeding gate, exhaust valve, inlet valve and fluidized gas adjustment door, and be provided with fluidisation nozzles in the described pump housing, described feeding gate is arranged on the top center of the pump housing; Described exhaust valve is arranged on the side, top of the pump housing; Described fluidized gas adjustment door is connected with the fluidisation nozzles of pump body by delivery duct, it is characterized in that: also have voltage stabilizing discharging adjustment door, described voltage stabilizing discharging adjustment door is arranged on the bottom of the pump housing and is connected with the delivery duct of delivery system, and described voltage stabilizing discharging adjustment door can according to described delivery duct force value conversion aperture size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620440.2U CN204162090U (en) | 2014-10-25 | 2014-10-25 | Pneumatic ash handling voltage stabilizing anti-blockage type transmission pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620440.2U CN204162090U (en) | 2014-10-25 | 2014-10-25 | Pneumatic ash handling voltage stabilizing anti-blockage type transmission pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204162090U true CN204162090U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420620440.2U Active CN204162090U (en) | 2014-10-25 | 2014-10-25 | Pneumatic ash handling voltage stabilizing anti-blockage type transmission pump |
Country Status (1)
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| CN (1) | CN204162090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723519A (en) * | 2013-12-30 | 2014-04-16 | 陕西大唐新能电力设计有限公司 | Coal ash collecting and delivery method |
| CN108928651A (en) * | 2018-05-30 | 2018-12-04 | 武汉钢铁有限公司 | A kind of closed collection processing/transfer system of metallurgy dedusting ash and technique |
-
2014
- 2014-10-25 CN CN201420620440.2U patent/CN204162090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723519A (en) * | 2013-12-30 | 2014-04-16 | 陕西大唐新能电力设计有限公司 | Coal ash collecting and delivery method |
| CN108928651A (en) * | 2018-05-30 | 2018-12-04 | 武汉钢铁有限公司 | A kind of closed collection processing/transfer system of metallurgy dedusting ash and technique |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |