CN2723040Y - High concentration slurry atomizing spray nozzle - Google Patents
High concentration slurry atomizing spray nozzle Download PDFInfo
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- CN2723040Y CN2723040Y CN 200420047866 CN200420047866U CN2723040Y CN 2723040 Y CN2723040 Y CN 2723040Y CN 200420047866 CN200420047866 CN 200420047866 CN 200420047866 U CN200420047866 U CN 200420047866U CN 2723040 Y CN2723040 Y CN 2723040Y
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Abstract
The utility model relates to a high concentration slurry atomizing spray nozzle, comprising a nozzle body in which a once-through type atomization cavity is arranged, a necking nozzle which is communicated with the once-through type atomization cavity and is arranged on the front end of the nozzle body. The diameter of the nozzle outlet is smaller than the inner diameter of the once-through type atomization cavity. Atomization agent holes in pattern are arranged around the medial wall of the nozzle. A slurry pipe is sheathed with the interior of a gun body which is fixedly connected with the rear end of the nozzle body through an end cap and the slurry pipe is communicated with the once-through type atomization cavity. An air current channel is An inlet pipe on the wall of the gun bodies communicated with the air current channel. The atomization agent holes in pattern The included angle between the axial trace of the atomization agent holes in pattern and the major axis of the necking type nozzle is less than 90 degrees, The high concentration slurry atomizing spray nozzle has the advantages of a once-through slurry channel, non-perishable clog, low pressure, low operation cost, simple structure, good atomization effect, stable operation and convenient operation and maintenance, etc. and can be processed by carbon steel material.
Description
Invention field
The utility model relates to a kind of internal-mixing direct current two-fluid pneumatic nozzle of high density slurry.
Technical background
The atomizing of slurry is widely used in coal slurry gasification and technical process such as burning, pharmacy and tail gas clean-up.Liquid carrying object and the coexistence of solid state chemistry activating agent form high-concentration suspension liquid, need increase the contact area of suspended substance and ambient gas by atomization process greatly, to improve the space utilization efficient of chemical active agent.But this class suspension generally has bigger viscosity and non newtonian rheology characteristic, is difficult for atomizing.
At present mainly adopt the two-fluid pneumatic nozzle at the atomizing of slurry.The effervescent atomizer that newly-developed gets up has the advantages that the gas consumption amount is little, atomizing load is big, but and be not suitable for the atomizing of slurry.Reason is that the high-concentration suspension slurry has the complex surfaces characteristic, and surface tension different between liquid solid, liquid gas, the solid and gas produce complicated influence to the formation of steeping liquid two-phase, thereby have limited the scope of application of this nozzle.
Adopt traditional homogeneous liquid fuel air-blast atomizer such as pre-membrane type nozzle or y-type nozzle that high density slurry is atomized, slurry must stop up easily by slit or aperture; Moreover, because slit or aperture produce bigger pressure drop, require nozzle upstream to have than higher pressure, improved operating cost; The 3rd, the high slurry stream speed belt in aperture or slit place comes strong wearing and tearing, and nozzle material has been proposed requirement, and nozzle has to adopt precious metal or anti abrasive nonmetallic materials to process, and has improved the manufacturing cost of nozzle.
Overcome above-mentioned difficulties, adopting the slurry direct current channel is more feasible way.As the water-coal-slurry once-through type low pressure atomization nozzle (patent No.: 91206159.6), can reduce the operating pressure and the degree of wear effectively, and realize atomizing effect preferably.But the gas consumption rate of this nozzle is still higher, and is not easy to realize big slurry flow.
Summary of the invention
The objective of the invention is the problem that exists at prior art, provide a kind of employing slurry once-through type to arrange, be furnished with reducing, form the higher interior mixed atomization chamber of relative pressure in the outlet of nozzle; The nozzle side is furnished with the high density slurry atomizer of the round that is used to inject atomizing medium.The high speed atomizing medium in atomization chamber with the strong blending of slurry, big momentum-exchange helps tearing up slurry; Reducing place two phase flow obtains quickening, and two alternate different acceleration produce speed difference, help secondary-atomizing.The interior existence that mixes atomization chamber can guarantee blending, can reduce the quantitative requirement to the atomizing medium jet orifice, reduces the slurry stream dynamic resistance, and realizes big slurry flow.
Technical scheme of the present invention is as follows:
The atomization jetting device that is used for high density slurry that the utility model provides comprises:
One nozzle body 1 is provided with once-through type atomization chamber 11 in this nozzle body 1, is provided with the reducing type nozzle 12 that communicates with once-through type atomization chamber 11 at nozzle body 1 front end, and the outlet diameter of this reducing type nozzle 12 is less than the internal diameter of once-through type atomization chamber 11; Be provided with atomizing medium round 13 around the madial wall of described reducing type nozzle 12;
One internal sleeve is equipped with the rifle body 5 of slurry pipe 4, and this rifle body 5 is fixedlyed connected by end cap 3 with nozzle body 1 rear end, and described slurry pipe 4 is connected with once-through type atomization chamber 11; Leave gas channel 6 between described rifle body 5 and nozzle body 1 and the slurry pipe 4, the air inlet pipe 2 that is located on the rifle body 5 rifle walls communicates with gas channel 6.
Described atomizing medium round 13 is a row, two rows or many rows; Angle between the main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 is less than 90 degree; The main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 intersects; The main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 is non-intersect.
Characteristics of the present invention are that the slurry passage is a direct current, are difficult for stopping up, and the low pressure operation cost is low, and available carbon steel material processes, and is simple in structure.Adopt reducing to arrange that atomizing effect is good at jet expansion, the slurry flow is big.Stable, Operation and maintenance are convenient.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is a fundamental diagram of the present utility model.
Wherein: nozzle body 1 once-through type atomization chamber 11 reducing type nozzles 12
Atomizing medium round 13 slurry pipes 4 rifle bodies 5
End cap 3 gas channels 6 air inlet pipe 2
The specific embodiment
Further describe the utility model below in conjunction with drawings and Examples:
Structural representation of the present utility model shown in Figure 1; As seen from the figure, the atomization jetting device that is used for high density slurry that the utility model provides, comprise: a nozzle body 1, be provided with once-through type atomization chamber 11 in this nozzle body 1, be provided with the reducing type nozzle 12 that communicates with once-through type atomization chamber 11 at nozzle body 1 front end, the outlet diameter of this reducing type nozzle 12 is less than the internal diameter of once-through type atomization chamber 11; Be provided with atomizing medium round 13 around the madial wall of described reducing type nozzle 12;
One internal sleeve is equipped with the rifle body 5 of slurry pipe 4, and this rifle body 5 is fixedlyed connected by end cap 3 with nozzle body 1 rear end, and described slurry pipe 4 is connected with once-through type atomization chamber 11; Leave gas channel 6 between described rifle body 5 and nozzle body 1 and the slurry pipe 4, the air inlet pipe 2 that is located on the rifle body 5 rifle walls communicates with gas channel 6.
Described atomizing medium round 13 is a row, two rows or many rows; Present embodiment is 2 rows, and the angle between the main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 is less than 90 degree; The main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 intersects; The main shaft of the axis of described atomizing medium round 6 and reducing type nozzle 12 is non-intersect.
The utility model is the reducing type in the outlet of nozzle, and the periphery of nozzle has the atomizing medium round, forms the higher interior mixed atomization chamber of relative pressure, helps two-phase mixing and secondary-atomizing.The quantity of round can require to select according to nozzle specification and atomizing, can adopt the single row or multiple rows hole.The angle of round can be vertical with the nozzle main shaft or (less than 90 degree) at an angle, and the round axis can be crossing or non-intersect and form certain swing angle with the nozzle main shaft.
Operation principle of the present utility model as shown in Figure 2.Coal slurry enters nozzle with low flow velocity, and the shear action of atomizing medium makes the interface generation unstability of slurry post and medium and disperses.Strong momentum-exchange takes place in initial liquid drop and atomizing medium in atomization chamber, initial liquid drop further obtains fragmentation.In reducing place of jet expansion, two-phase flow speeds up, because the acceleration of atomizing medium is greater than the slurry rate of addition, two alternate speed differences cause the generation of secondary-atomizing, finally form mist torch relatively uniformly in the nozzle downstream.
The utility model can be used for the atomizing of water-coal-slurry, soup and lime white etc.
Claims (5)
1, a kind of high density slurry atomizer is characterized in that, comprising:
One nozzle body (1), be provided with once-through type atomization chamber (11) in this nozzle body (1), be provided with the reducing type nozzle (12) that communicates with once-through type atomization chamber (11) at nozzle body (1) front end, the outlet diameter of this reducing type nozzle (12) is less than the internal diameter of once-through type atomization chamber (11); Be provided with atomizing medium round (13) around the madial wall of described reducing type nozzle (12);
One internal sleeve is equipped with the rifle body (5) of slurry pipe (4), and this rifle body (5) is fixedlyed connected by end cap (3) with nozzle body (1) rear end, and described slurry pipe (4) is connected with once-through type atomization chamber (11); Leave gas channel (6) between described rifle body (5) and nozzle body (1) and the slurry pipe (4), the air inlet pipe (2) that is located on rifle body (5) the rifle wall communicates with gas channel (6).
By the described high density slurry atomizer of claim 1, it is characterized in that 2, described atomizing medium round (13) is a row, two rows or many rows.
By the described high density slurry atomizer of claim 1, it is characterized in that 3, the angle between the main shaft of the axis of described atomizing medium round (6) and reducing type nozzle (12) is less than 90 degree.
By the described high density slurry atomizer of claim 1, it is characterized in that 4, the main shaft of the axis of described atomizing medium round (6) and reducing type nozzle (12) intersects.
5, by the described high density slurry atomizer of claim 1, it is characterized in that the main shaft of the axis of described atomizing medium round (6) and reducing type nozzle (12) is non-intersect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047866 CN2723040Y (en) | 2004-04-05 | 2004-04-05 | High concentration slurry atomizing spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047866 CN2723040Y (en) | 2004-04-05 | 2004-04-05 | High concentration slurry atomizing spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723040Y true CN2723040Y (en) | 2005-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047866 Expired - Fee Related CN2723040Y (en) | 2004-04-05 | 2004-04-05 | High concentration slurry atomizing spray nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN2723040Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008134A (en) * | 2012-03-21 | 2013-04-03 | 北京恩萨工程技术有限公司 | Spray gun and method for dispersively delivering semi-solid medium through utilizing spray gun |
| CN105035770A (en) * | 2015-06-16 | 2015-11-11 | 镇江港和新型建材有限公司 | Material conveyor |
| CN108816548A (en) * | 2018-06-29 | 2018-11-16 | 北京瑞诺安科新能源技术有限公司 | A kind of slurry spray gun |
| CN114682406A (en) * | 2020-12-31 | 2022-07-01 | 大连理工大学 | Inner rotational flow umbrella-shaped spray hole sprayer |
| CN114682401A (en) * | 2020-12-31 | 2022-07-01 | 大连理工大学 | Internal rotational flow cross hole injector |
-
2004
- 2004-04-05 CN CN 200420047866 patent/CN2723040Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008134A (en) * | 2012-03-21 | 2013-04-03 | 北京恩萨工程技术有限公司 | Spray gun and method for dispersively delivering semi-solid medium through utilizing spray gun |
| CN103008134B (en) * | 2012-03-21 | 2015-04-01 | 北京恩萨工程技术有限公司 | Spray gun and method for dispersively delivering semi-solid medium through utilizing spray gun |
| CN105035770A (en) * | 2015-06-16 | 2015-11-11 | 镇江港和新型建材有限公司 | Material conveyor |
| CN108816548A (en) * | 2018-06-29 | 2018-11-16 | 北京瑞诺安科新能源技术有限公司 | A kind of slurry spray gun |
| CN114682406A (en) * | 2020-12-31 | 2022-07-01 | 大连理工大学 | Inner rotational flow umbrella-shaped spray hole sprayer |
| CN114682401A (en) * | 2020-12-31 | 2022-07-01 | 大连理工大学 | Internal rotational flow cross hole injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |