CN201832731U - External mixing type double-fluid spray nozzle - Google Patents
External mixing type double-fluid spray nozzle Download PDFInfo
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- CN201832731U CN201832731U CN2010202480956U CN201020248095U CN201832731U CN 201832731 U CN201832731 U CN 201832731U CN 2010202480956 U CN2010202480956 U CN 2010202480956U CN 201020248095 U CN201020248095 U CN 201020248095U CN 201832731 U CN201832731 U CN 201832731U
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- spray nozzle
- fluid spray
- counter direction
- flow chamber
- direction jet
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Abstract
The utility model relates to an external mixing type double-fluid spray nozzle, which comprises an air cap, an inclined hole plate and a rotational flow cavity. The rotational flow cavity is a hollow cavity and comprises a first end and a second end, the first end is arranged on the inclined hole plate, the inclined hole plate is provided with at least one inclined hole, the inclined hole is communicated with the hollow cavity, the air cap is capped at the periphery of the rotational flow cavity and comprises a first tail end and a second tail end, the first tail end is arranged on the inclined hole plate, an air nozzle is formed between the second tail end and the second end, an airflow cavity is formed among the air cap, the inclined hole plate and the rotational flow cavity, at least one through hole is disposed on the inclined hole plate and communicated with the air nozzle via the airflow cavity, and preferably, at least one inclined groove is arranged in the airflow cavity, is disposed on the outer side surface of the wall of the rotational flow cavity or the inner all of the air cap and further comprises a sealing gasket and a sealing ring. The external mixing type double-fluid spray nozzle is novel in design and simple and feasible in structure, can achieve expectant atomizing effect via secondary atomization, and is applicable to large-scale popularization and application.
Description
Technical field
The utility model relates to the spray technique field, and particularly the nozzle technology field specifically is meant a kind of exterior mixing two-fluid spray nozzle, can adopt air or steam atomization liquid.
Background technology
Can produce a large amount of high-temperature gases in steel smelting procedure, wherein major part is carbon monoxide and carbon dioxide and dust etc., utilizes in order to reclaim carbon monoxide again, will be with the flue gas cool-down dedusting.Usually adopt transpiration-cooled method to spray into tiny particle water by nozzle.In order to reach required fine water particle, utilize atomizing medium that water is atomized.Compressed air and steam are atomizing mediums commonly used.But compressed air can not because high-temperature flue-gas reaches 1200 ℃, and wherein contain carbon monoxide as atomizing medium here, is easy to set off an explosion.So steam becomes first-selected atomizing medium.
Because steam is very easily water-soluble, thus internal-mixing nozzle be difficult to meet the demands, unless steam pressure is obviously greater than hydraulic pressure.And outer mixed mode nozzle just can well be avoided this situation: also be not able to do in time when water-soluble at steam, water is just become fine particle by steam institute fragmentation at a high speed.
At present, the steam spraying gun of the LURGI company of Germany occupies this market, its atomizing principles is a secondary-atomizing: atomizing for the first time is that liquid rotate ejection and reaches certain atomizing in the eddy flow chamber, and atomizing for the second time is that liquid is further impacted atomizing by the higher rotation gas of speed.Twice atomizing used medium, i.e. the mixing of liquids and gases is finished outside nozzle.The rotation of liquid in the eddy flow chamber finished rotation by a spinning disk, this spinning disk structure more complicated, but all the time, this nozzle does not all have improvement in this respect.In order to address this problem, need a kind of new, simple more form of nozzle of structure of design.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, and a kind of exterior mixing two-fluid spray nozzle is provided, this exterior mixing two-fluid spray nozzle modern design, simple in structure feasible, by secondary-atomizing, can reach the atomizing effect of expection, be suitable for large-scale promotion application.
To achieve these goals, exterior mixing two-fluid spray nozzle of the present utility model has adopted following technical scheme:
This exterior mixing two-fluid spray nozzle, be characterized in, comprise air cap, counter direction jet trays and eddy flow chamber, described eddy flow chamber is hollow cavity and comprises first end and the second end, described first end is installed on the described counter direction jet trays, described counter direction jet trays is provided with at least one inclined hole, described inclined hole is communicated with described hollow cavity, described air cap is located at around the described eddy flow chamber, described air cap comprises first terminal and second end, described first end is installed on the described counter direction jet trays, form puff prot between described second end and the described the second end, described air cap, form air flow chamber between described counter direction jet trays and the described eddy flow chamber, described counter direction jet trays is provided with at least one through hole, and described through hole is communicated with described puff prot by described air flow chamber.
Preferably, the number of described inclined hole is at least two, and evenly distributes along circumferential with respect to the axis of described counter direction jet trays.
Preferably, described first end is threaded with described counter direction jet trays or is integrally formed.
Preferably, the inwall of described the second end middle part to small part is inwardly protruded.
Preferably, the spacing between described second end and the described the second end is less than the thickness of described air flow chamber.
Preferably, described through hole is vertical hole.
Preferably, be provided with at least one skewed slot in the described air flow chamber, described skewed slot is arranged on the lateral surface of chamber wall in described eddy flow chamber or is arranged on the inwall of described air cap.
More preferably, described skewed slot evenly distributes along circumferential with respect to the axis of described counter direction jet trays.
Preferably, described exterior mixing two-fluid spray nozzle also comprises sealing gasket, and described sealing gasket is installed under the described counter direction jet trays, and described sealing gasket is provided with limbers and passage, and described limbers is communicated with described inclined hole, and described passage is communicated with described through hole.
Preferably, described exterior mixing two-fluid spray nozzle also comprises sealing ring, and described sealing ring is between described first end and described counter direction jet trays and respectively against the described first terminal and described counter direction jet trays.
The beneficial effects of the utility model are:
1, inclined hole and the eddy flow chamber of the utility model by being provided with on the counter direction jet trays, enter the rotation of eddy flow chamber after making the water that will atomize by inclined hole, and from the second end back-out generation primary atomization, air flow chamber by forming between the through hole that is provided with on the counter direction jet trays and air cap, described counter direction jet trays and the described eddy flow chamber again, make atomizing medium spray from puff prot by through hole and air flow chamber, the water that will atomize is carried out secondary-atomizing, reach the atomizing effect of expection, novel in design, simple in structure feasible, be suitable for large-scale promotion application.
2, be provided with at least one skewed slot in the air flow chamber of the present utility model, thereby make the atomizing medium that enters also produce rotation, screw out at a high speed, further strengthen atomizing effect, be suitable for large-scale promotion application from puff prot.
Description of drawings
Fig. 1 is the schematic top plan view of a specific embodiment of the present utility model.
Fig. 2 is the cross-sectional schematic of A-A position among Fig. 1.
Fig. 3 is the cross-sectional schematic of B-B position among Fig. 1.
The specific embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.Wherein identical parts adopt identical Reference numeral.
See also shown in Fig. 1-3, exterior mixing two-fluid spray nozzle of the present utility model comprises air cap 1, counter direction jet trays 2 and eddy flow chamber 3, described eddy flow chamber 3 is for hollow cavity and comprise first end 31 and the second end 32, described first end 31 is installed on the described counter direction jet trays 2, described counter direction jet trays 2 is provided with at least one inclined hole 21, described inclined hole 21 is communicated with described hollow cavity, described air cap 1 is located at around the described eddy flow chamber 3, described air cap 1 comprises first terminal 11 and second end 12, described first end 11 is installed on the described counter direction jet trays 2, form puff prot 4 between described second end 12 and the described the second end 32, described air cap 1, form air flow chamber 5 between described counter direction jet trays 2 and the described eddy flow chamber 3, described counter direction jet trays 2 is provided with at least one through hole 22, and described through hole 22 is communicated with described puff prot 4 by described air flow chamber 5.
Described inclined hole 21 is with respect to vertical Kong Eryan, and it can be oblique straight hole, also can be tiltedly curved hole, preferably has the tiltedly curved hole of circular arc runner, make the water that must atomize by after enter eddy flow chamber 3 and produce rotation.
The number of described inclined hole 21 as required can be any.Preferably, the number of described inclined hole 21 is at least two, and evenly distributes along circumferential with respect to the axis of described counter direction jet trays 2.See also shown in Figure 2ly, in specific embodiment of the utility model, the number of described inclined hole 21 is 2.
Described first end 31 can adopt any suitable manner to be connected with described counter direction jet trays 2.Preferably, described first end 31 is threaded with described counter direction jet trays 2 or is integrally formed.See also shown in Fig. 2 and 3, in specific embodiment of the utility model, described first end 31 and described counter direction jet trays 2 screw by screw thread.
Preferably, the inwall of described the second end 32 middle part to small part is inwardly protruded.See also shown in Fig. 2 and 3, in specific embodiment of the utility model, the inwall of described the second end 32 middle part is whole to projecting inward.
Described first terminal 11 can adopt any suitable manner to be connected with described counter direction jet trays 2.See also shown in Fig. 1 and 3, in specific embodiment of the utility model, described first end 11 and described counter direction jet trays 2 all are provided with screw 13, and both wear screw 13 by bolt and realize connecting.
See also shown in Fig. 2 and 3, in specific embodiment of the utility model, the spacing between described second end 12 and the described the second end 32 is less than the thickness of described air flow chamber 5.
Described through hole 22 can be an inclined hole, also can be vertical hole.See also shown in Figure 3ly, in specific embodiment of the utility model, described through hole 22 is vertical holes.
Preferably, be provided with at least one skewed slot 51 in the described air flow chamber 5, described skewed slot 51 is arranged on the lateral surface of chamber wall in described eddy flow chamber 3 or is arranged on the inwall of described air cap 1.More preferably, the axis of the described relatively counter direction jet trays 2 of described skewed slot 51 is along circumferentially evenly distributing.See also shown in Fig. 2 and 3, in specific embodiment of the utility model, the number of described skewed slot 51 is 8, is arranged on the lateral surface of chamber wall in described eddy flow chamber 3.Skewed slot 51 is for vertical slots, and it can be oblique straight trough, also can be tiltedly curved groove, preferably has the tiltedly curved groove of circular arc runner, and the feasible atomizing medium that enters air flow chamber 5 produces rotation and screws out puff prot 4.
See also shown in Fig. 2 and 3, in specific embodiment of the utility model, described exterior mixing two-fluid spray nozzle also comprises sealing gasket 6, described sealing gasket 6 is installed in described counter direction jet trays 2 times, described sealing gasket 6 is provided with limbers 61 and passage 62, described limbers 61 is communicated with described inclined hole 21, and described passage 62 is communicated with described through hole 22.Sealing gasket 6 is used to separate the water and the atomizing medium that will atomize.
See also shown in Fig. 2 and 3, in specific embodiment of the utility model, described exterior mixing two-fluid spray nozzle also comprises sealing ring 7, and described sealing ring 7 also distributes against described first end 11 and the described counter direction jet trays 2 between described first end 11 and described counter direction jet trays 2.By sealing ring 7 sealings, prevent the atomizing medium leakage.
During use, be that steam is example with the atomizing medium, water enters eddy flow chamber 3 by the limbers on the sealing gasket 6 61 from the inclined hole 21 on the counter direction jet trays 2 and produces rotation, and promptly produces primary atomization from the back-out of the second end 32 openings.In addition, steam enters the air flow chamber 5 that is surrounded by air cap 1 and counter direction jet trays 2 and eddy flow chamber 3 by the through hole 22 on passage on the sealing gasket 6 62 and the counter direction jet trays 2, produces rotation by the skewed slot 51 that is provided with again, and screws out at a high speed from puff prot 4.The fluid rotation direction of these two bursts of rotations is identical, so water is atomized further refinement for the second time.Thereby reach the atomizing effect of expection, promptly the atomized water particle is littler for the second time, illustrates that this structure is feasible.
To sum up, exterior mixing two-fluid spray nozzle modern design of the present utility model, simple in structure feasible, by secondary-atomizing, can reach the atomizing effect of expection, be suitable for large-scale promotion application.
In this specification, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. exterior mixing two-fluid spray nozzle, it is characterized in that, comprise air cap, counter direction jet trays and eddy flow chamber, described eddy flow chamber is hollow cavity and comprises first end and the second end, described first end is installed on the described counter direction jet trays, described counter direction jet trays is provided with at least one inclined hole, described inclined hole is communicated with described hollow cavity, described air cap is located at around the described eddy flow chamber, described air cap comprises first terminal and second end, described first end is installed on the described counter direction jet trays, form puff prot between described second end and the described the second end, described air cap, form air flow chamber between described counter direction jet trays and the described eddy flow chamber, described counter direction jet trays is provided with at least one through hole, and described through hole is communicated with described puff prot by described air flow chamber.
2. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, the number of described inclined hole is at least two, and evenly distributes along circumferential with respect to the axis of described counter direction jet trays.
3. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, described first end is threaded with described counter direction jet trays or is integrally formed.
4. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, inwall middle part to the small part of described the second end is inwardly protruded.
5. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, the spacing between described second end and the described the second end is less than the thickness of described air flow chamber.
6. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, described through hole is vertical hole.
7. exterior mixing two-fluid spray nozzle according to claim 1 is characterized in that, is provided with at least one skewed slot in the described air flow chamber, and described skewed slot is arranged on the lateral surface of chamber wall in described eddy flow chamber or is arranged on the inwall of described air cap.
8. exterior mixing two-fluid spray nozzle according to claim 7 is characterized in that, the axis of the described relatively counter direction jet trays of described skewed slot is along circumferentially evenly distributing.
9. exterior mixing two-fluid spray nozzle according to claim 1, it is characterized in that, described exterior mixing two-fluid spray nozzle also comprises sealing gasket, described sealing gasket is installed under the described counter direction jet trays, described sealing gasket is provided with limbers and passage, described limbers is communicated with described inclined hole, and described passage is communicated with described through hole.
10. exterior mixing two-fluid spray nozzle according to claim 1, it is characterized in that, described exterior mixing two-fluid spray nozzle also comprises sealing ring, and described sealing ring is between described first end and described counter direction jet trays and respectively against the described first terminal and described counter direction jet trays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202480956U CN201832731U (en) | 2010-07-02 | 2010-07-02 | External mixing type double-fluid spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202480956U CN201832731U (en) | 2010-07-02 | 2010-07-02 | External mixing type double-fluid spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832731U true CN201832731U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202480956U Expired - Fee Related CN201832731U (en) | 2010-07-02 | 2010-07-02 | External mixing type double-fluid spray nozzle |
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| CN (1) | CN201832731U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688681A (en) * | 2012-05-25 | 2012-09-26 | 中国华能集团清洁能源技术研究院有限公司 | Air cooling type air atomization spray gun applicable to denitration by SNCR (selective non-catalytic reduction) method |
| CN103949370A (en) * | 2014-05-05 | 2014-07-30 | 北京东方金荣超声电器有限公司 | Vortex scattering ultrasonic wave spray head |
| CN104384037A (en) * | 2014-10-28 | 2015-03-04 | 亿川科技(成都)有限责任公司 | Two-fluid atomization nozzle |
| CN105772254A (en) * | 2016-03-22 | 2016-07-20 | 山东钢铁股份有限公司 | Spiral nozzle device |
| CN106733276A (en) * | 2016-11-16 | 2017-05-31 | 信义玻璃（营口）有限公司 | A kind of heavy oil combustion spray gun and the stove with the spray gun |
-
2010
- 2010-07-02 CN CN2010202480956U patent/CN201832731U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688681A (en) * | 2012-05-25 | 2012-09-26 | 中国华能集团清洁能源技术研究院有限公司 | Air cooling type air atomization spray gun applicable to denitration by SNCR (selective non-catalytic reduction) method |
| CN103949370A (en) * | 2014-05-05 | 2014-07-30 | 北京东方金荣超声电器有限公司 | Vortex scattering ultrasonic wave spray head |
| CN104384037A (en) * | 2014-10-28 | 2015-03-04 | 亿川科技(成都)有限责任公司 | Two-fluid atomization nozzle |
| CN104384037B (en) * | 2014-10-28 | 2017-01-25 | 亿川科技(成都)有限责任公司 | Two-fluid atomization nozzle |
| CN105772254A (en) * | 2016-03-22 | 2016-07-20 | 山东钢铁股份有限公司 | Spiral nozzle device |
| CN106733276A (en) * | 2016-11-16 | 2017-05-31 | 信义玻璃（营口）有限公司 | A kind of heavy oil combustion spray gun and the stove with the spray gun |
| CN106733276B (en) * | 2016-11-16 | 2022-07-26 | 信义玻璃（营口）有限公司 | Heavy oil combustion spray gun and furnace kiln with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20120702 |