CN205065750U - A soot blower for coal fired power plant circular flue - Google Patents
A soot blower for coal fired power plant circular flue Download PDFInfo
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- CN205065750U CN205065750U CN201520819407.7U CN201520819407U CN205065750U CN 205065750 U CN205065750 U CN 205065750U CN 201520819407 U CN201520819407 U CN 201520819407U CN 205065750 U CN205065750 U CN 205065750U
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- flue
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- circular flue
- power plant
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Abstract
The utility model discloses a soot blower for coal fired power plant circular flue, including setting up a plurality of nozzles on circular flue inside inclined plane, the spray direction of nozzle output be 0-5 with the contained angle on this inclined plane, and the height of nozzle be 0.02-0.1 times circular flue diameter, and the diameter of nozzle is more than or equal to 0.01's times circular flue diameter, and interval between the adjacent nozzle is less than or equal to 0.9's times circular flue diameter. The utility model discloses to the coal fired power plant circular flue and the soot blower that designs, simple structure, the energy consumption is low, and economic cost low verifies through experimental that to blow grey effect obvious, can effectively solve flue deposition problem.
Description
Technical field
The utility model relates to a kind of power plant flue device, specifically relates to a kind of soot blower for coal-burning power plant's circular flue.
Background technology
Circular flue is due to uniform force, and simply, consumptive material is few for ribs and inner support, avoids dust stratification and the corrosion at the inner more dead angle of square flue simultaneously, is more favored in developed countries such as Japan.The flue of coal-burning power plant of current China still more adopts square flue, and it splices comparatively easy at the construction field (site).
Smoke content in coal-fired plant flue gas is very high, particularly firm from boiler out without the flue section of environmental protection facility purification, especially easily there is flue dust packing phenomenon in flue.Even employing circular flue, at some inclination sections, because flue gas velocity reduces, to run continuously for a long time in underload situation, also can dust stratification in flue, this does not reach designing requirement by making the security of air current of smoke removal.
Usually be set up ash bucket at the position, inclined-plane of flue to the method for circular flue tilting section control dust stratification, or reduction flue bore improve flue gas velocity etc. when underrun.The former has any problem design flue ash bucket is textural, and latter can cause the pressure loss to increase energy consumption.
Utility model content
The purpose of this utility model is the problem easily producing dust stratification for the current coal-burning power plant circular flue mentioned in prior art at inclination section, and a kind of method providing employing to add soot blower solves these problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of soot blower for coal-burning power plant's circular flue, comprise the multiple nozzles be arranged on circular flue inner inclination face, the angle of the injection direction of nozzle outlet end and this inclined plane is 0 ~ 5 °, the height of nozzle is the circular flue diameter of 0.02 ~ 0.1 times, the diameter of nozzle is be more than or equal to the circular flue diameter of 0.01 times, and the spacing between adjacent nozzle is be less than or equal to the circular flue diameter of 0.9 times.
The described soot blower for coal-burning power plant's circular flue, also comprises control valve and booster, and one end of control valve is connected to the input of nozzle, and the other end of control valve is connected with booster.
The flue gas of discharging from circular flue needs successively through deduster, air-introduced machine and desulfurizing tower.
Booster is connected with air-introduced machine, and blow grey Air Quantity Required and mainly draw from air-introduced machine, the nozzle be connected in flue by booster, control valve carries out blowing ash.System architecture is simple, convenient and easy.
Preferably, the jet velocity of described nozzle outlet end is 30 ~ 50m/s.
Compared with prior art, the beneficial effects of the utility model are:
The soot blower that the utility model designs for coal-burning power plant's circular flue, structure is simple, and energy consumption is low, and financial cost is low, blows grey successful by verification experimental verification, can effectively solve dust deposit in flue problem.
Accompanying drawing explanation
Fig. 1 shows the utility model and is installed on structural representation in circular flue;
Fig. 2 shows overall structure of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
As shown in Figure 1-2, a kind of soot blower for coal-burning power plant's circular flue described in the utility model, relates to the technical characteristics such as booster 1, control valve 2, nozzle 3, flue 4.
Embodiment 1
A kind of soot blower for coal-burning power plant's circular flue, comprise the multiple nozzles be arranged on circular flue inner inclination face, the angle of the injection direction of nozzle outlet end and this inclined plane is 0 ~ 5 °, the height of nozzle is the circular flue diameter of 0.02 ~ 0.1 times, the diameter of nozzle is be more than or equal to the circular flue diameter of 0.01 times, and the spacing between adjacent nozzle is be less than or equal to the circular flue diameter of 0.9 times.
Embodiment 2
The present embodiment improves on the basis of embodiment 1, and the described soot blower for coal-burning power plant's circular flue, also comprises control valve and booster, and one end of control valve is connected to the input of nozzle, and the other end of control valve is connected with booster.
The air quantity that air-introduced machine is drawn, by after booster, then enters nozzle through control valve.Control valve can Control Nozzle blowout speed.Access times be below 50% equivalent continuous rating once a day, the order of blowout is from upstream to downstream.For keeping the clean of nozzle, a small amount of air quantity should be kept.Meanwhile, should run continuously before nozzle is stopped transport.
The parameters such as nozzle form, setting height(from bottom), setting angle and jet velocity, will determine depending on deashing scope.Test the design standard of delivery nozzle is that wherein D is circular flue diameter by test model:
| Nozzle diameter | Nozzle height | Nozzle angle | Blowout speed | Injector spacing |
| d≥0.01D | h=(0.02~0.1)D | 0~5° | 30~50m/s | L≤0.9D |
Embodiment 3
On inclined-plane, flue model carries out demonstration test, and model major parameter is as follows:
| Flue diameter | Nozzle diameter | Nozzle height | Nozzle angle | Blowout speed | Injector spacing | Soot build-up height |
| D=800mm | d=10mm | h=50mm | 5° | 50m/s | L=70mm | H=15mm |
The time of verification experimental verification 3min just can remove the heap dust stratification within the scope of 800mm completely.Pile up flowing in time the accumulating amount got up and be added together the actual flue that converts, about 40min just can remove the cigarette ash piled up.This soot blower system simple installation of testing and verification, blows grey successful.
The undeclared part related in the utility model is same as the prior art or adopt prior art to be realized.
Claims (3)
1. the soot blower for coal-burning power plant's circular flue, it is characterized in that, comprise the multiple nozzles be arranged on circular flue inner inclination face, the angle of the injection direction of nozzle outlet end and this inclined plane is 0 ~ 5 °, the height of nozzle is the circular flue diameter of 0.02 ~ 0.1 times, the diameter of nozzle is be more than or equal to the circular flue diameter of 0.01 times, and the spacing between adjacent nozzle is be less than or equal to the circular flue diameter of 0.9 times.
2. the soot blower for coal-burning power plant's circular flue according to claim 1, is characterized in that, also comprises control valve and booster, and one end of control valve is connected to the input of nozzle, and the other end of control valve is connected with booster.
3. the soot blower for coal-burning power plant's circular flue according to claim 1, is characterized in that, the jet velocity of described nozzle outlet end is 30 ~ 50m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819407.7U CN205065750U (en) | 2015-10-22 | 2015-10-22 | A soot blower for coal fired power plant circular flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819407.7U CN205065750U (en) | 2015-10-22 | 2015-10-22 | A soot blower for coal fired power plant circular flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205065750U true CN205065750U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520819407.7U Expired - Fee Related CN205065750U (en) | 2015-10-22 | 2015-10-22 | A soot blower for coal fired power plant circular flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205065750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299667A (en) * | 2015-10-22 | 2016-02-03 | 南京信息工程大学 | Soot blowing device used for circular flue of coal-fired power plant |
-
2015
- 2015-10-22 CN CN201520819407.7U patent/CN205065750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299667A (en) * | 2015-10-22 | 2016-02-03 | 南京信息工程大学 | Soot blowing device used for circular flue of coal-fired power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20171022 |