CN2877882Y - Eddy flow steam-liquid atomization injector - Google Patents
Eddy flow steam-liquid atomization injector Download PDFInfo
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- CN2877882Y CN2877882Y CN 200620039246 CN200620039246U CN2877882Y CN 2877882 Y CN2877882 Y CN 2877882Y CN 200620039246 CN200620039246 CN 200620039246 CN 200620039246 U CN200620039246 U CN 200620039246U CN 2877882 Y CN2877882 Y CN 2877882Y
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Abstract
A vortex gasifying liquid atomizing injector relates to technical field of energy-saving and environmental protection. The utility model comprises a vapor-liquid agitator, a vortex flow guiding member, and a liquid pipe. The vortex flow guiding member is arranged in the cylindrical inner cavity of the vapor-liquid agitator. The liquid pipe is inserted in the plug hole of the liquid pipe. The steam inflows from the inlet of the vapor-liquid agitator, in the advancing process in the Venturi cavity the flow speed is faster and faster and the pressure is gradually reduced, as the flow area is gradually reduced. A negative pressure is formed in the narrow channel and the cleaning fluid is constantly sucked into the Venturi cavity and vapor and liquid biphasic flows are achieved. After the vapor and liquid biphasic flows enters the vortex guiding groove of the swirling guiding member, and blows off through atomization. The utility model has the advantages of simple structure, water-saving, energy-saving, and the needed vapor pressure is lower than similar products. The utility model can also be used in the wet desulfurization project of controlling air pollution and has outstanding economic profit and social profit.
Description
Technical field
The utility model relates to a kind of vapour-liquid spray nozzle, and particularly a kind of eddy current vapour-liquid atomizer that is used for steam car washing device belongs to the energy-saving and environmental protection technical field.
Background technology
Present traditional car-washing method is a lot, adopts water under high pressure to clean mostly, and its water consumption is big, and with 30 kilograms of about water consumptions of dolly of giant flushing, waste water resource also causes environmental pollution.Along with the increase of Chinese automobile recoverable amount, market and society technical equipment, product that more and more exigence is new, the needs that new carwash, care pattern adapt to the situation and develop.Steam car washing device, it is big to have solved water consumption, waste water resource, problems such as environmental pollution.Utilize the method for steam to come carwash, wash a car and only need 1～2 kg of water, steam anacidity alkali-free helps the maintenance of automobile, and the car after cleaning has the gloss after waxing, and can say so and kill two birds with one stone.
In the existing technology, the spray nozzle kind that is used for steam car washing device is a lot, these devices all assemble according to existing products in markets mostly, the structure of general vapour-liquid spray nozzle is liquid line directly to be inserted the exit of gas pipe, utilize the high-speed motion of gas that liquid is sucked back atomizing ejection, steam pressure is generally all greater than 4kg/cm
2And the steam pressure height, then energy consumption is big, also can cause potential safety hazard.
Summary of the invention
For deficiency and the defective that overcomes prior art, the utility model provides a kind of eddy current vapour-liquid spray nozzle that has Venturi tube cavity and vortex-like conducting element.
The utility model is achieved through the following technical solutions.The utility model comprises vapour-liquid blender, vortex-like conducting element, liquid line.Air and liquid mixer is to be made by the metal material of column type, rib-loop interface in vapour-liquid blender left side import department is processed into, be connected with the boiler steam pipe rib-loop, in the vapour-liquid blender on the right side of interior rib-loop interface, to be processed into two ends and to be horn-like, the centre is the venturi tube chamber of crawlway, the right of venturi tube chamber is a column type inner chamber body, the exit of column type inner chamber body is processed with inside chamfering, and vortex-like conducting element is seated in the column type inner chamber body, both tight fits.Above the vapour-liquid blender, have with the vapour-liquid mixer shafts to tangent liquid line patchhole, axis direction along the liquid line patchhole also has the aperture that is less than or equal to the liquid line internal diameter, communicate with the end of Venturi tube cavity crawlway, liquid line inserts in the liquid line patchhole, both tight fits.The import of liquid line is connected with the soda liquor container outlet by rubber hose.Vortex-like conducting element is a metal short cylinder, its outer surface is processed with four spiral stream guidance grooves, every spiral stream guidance groove be spaced apart 90 °, water conservancy diversion notch processing in vortex-like conducting element import department is streamlined shape, be similar to bullet, so that the smooth and easy spiral stream guidance groove that enters of stream-liquid two-phase flow, vortex-like conducting element makes stream-liquid two-phase flow for the helical movement around axis, in screw, make stream-liquid two-phase flow be in turbulent condition at a high speed, drop is easier to be smashed by the high speed steam flow, and mixes more even, cleaning fluid is impacted by the high speed steam flow constantly, smash, vaporization is good spray pattern.
Eddy current vapour-liquid injector mixer when work, when steam in the venturi tube chamber in preceding process of flowing, along with dwindling gradually of flow area, flow velocity increases gradually, pressure reduces gradually, forms negative pressure at the crawlway place, and cleaning fluid constantly is inhaled in the venturi tube chamber.The saturated vapour pressure of boiler export is 1.5-1.8kg/cm
2, drop to 0.4-0.5kg/cm through carrier pipe its steam pressure to the eddy current vapour-liquid atomizer
2, because pipeline wraps up in heat-insulating material outward, thus we this process as adiabatic process.Saturated vapor just becomes superheated steam through after the adiabatic expansion, and before absorbing cleaning fluid, steam is in this superheat state always.Cleaning fluid is subjected to the impact of high speed steam flow, and the drop that superheated steam constantly is crashed to pieces heat transferred forms stream-liquid two-phase flow.Stream-liquid two-phase flow decreases by the exit velocity of venturi tube chamber, close with atmospheric pressure, after entering the spiral stream guidance groove of vortex-like conducting element, drop is still constantly smashed by the high speed steam flow, and absorb the heat of superheated steam and vaporization constantly, synchronous with the steam flow that is accelerated, spray whirlpool and going out behind vortex-like conducting element.
Eddy current vapour-liquid spray nozzle is when small lot batch manufacture, and available copper, aluminum form through machined into; When producing in enormous quantities, available mould compacting forms, and material can be with aluminium and high temperature resistant bakelite, and also available silicon nitride ceramics sintering forms.
The beneficial effects of the utility model: the needed steam pressure of the utility model is 1.5-1.8kg/cm
2, be lower than like product.The utility model water saving, energy-conservation, simple in structure, low cost, operating cost is low.When eddy current vapour-liquid spray nozzle is made with the silicon nitride ceramics sintering, characteristics such as high-temperature machinery intensity height, thermal shock resistance are strong because silicon nitride ceramics has, acid-alkali-corrosive-resisting, but extensive use in the wet desulphurization project of control atmosphere pollution, acid and alkali-resistance, wear-resistant, reduce and change number of times, have remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is the utility model eddy current vapour-liquid spray nozzle structural representation
Fig. 2 is the utility model vapour-liquid mixer structure schematic diagram
Fig. 3 is the vortex-like conducting element import of a utility model view
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described.
Shown in Figure 3 as Fig. 1 Fig. 2: the utility model comprises vapour-liquid blender 1, vortex-like conducting element 2, liquid line 3.Air and liquid mixer 1 is to be made by the metal material of column type, left side import department is the interior rib-loop interface 4 of internal diameter 14mm, interior rib-loop interface 4 is connected with the boiler steam pipe rib-loop, it is horn-like on interior rib-loop interface 4 right sides to be that two ends are, the centre is the venturi tube chamber 5 of crawlway, the diameter of crawlway is 3mm, the right of venturi tube chamber 5 is a column type inner chamber body 6, the exit of column type inner chamber body 6 has and inwardly is 40 ° chamfering, above vapour-liquid blender 1, have the liquid line patchhole 7 tangent with vapour-liquid blender 1 axis, the diameter of liquid line patchhole 7 is 5mm, liquid line patchhole 7 axis and vapour-liquid blender 1 axis are 30 ° of angles, axis direction along liquid line patchhole 7 also has the aperture 8 that is less than or equal to the liquid line internal diameter, aperture 8 communicates with the end of venturi tube chamber 5 crawlways, liquid line 3 inserts in the liquid line patchhole 7, both tight fits, and liquid line 3 internal diameters are 1.5mm.The import of liquid line 3 is connected with the soda liquor container outlet by rubber hose.Vortex-like conducting element 2 is seated in the column type inner chamber body 6, both tight fits.
By the vortex-like conducting element 2 long 15mm that the metal short cylinder is made, outer surface is processed with four spiral stream guidance grooves, every spiral stream guidance groove interval 90 degree, and spiral stream guidance groove width 4mm, spiral stream guidance groove depth 3mm, spiral stream guidance slot pitch are 60mm.Water conservancy diversion notch processing in vortex-like conducting element 2 import departments is streamlined, so that the smooth and easy spiral stream guidance groove that enters of stream-liquid two-phase flow, vortex-like conducting element 2 makes stream-liquid two-phase flow for the helical movement around axis, in screw, make stream-liquid two-phase flow be in turbulent condition at a high speed, drop is easier to be smashed by the high speed steam flow, and mixes more even, cleaning fluid constantly is subjected to the high speed steam flow to impact, smash, vaporize, and is good spray pattern.
Eddy current vapour-liquid spray nozzle is when small lot batch manufacture, and vapour-liquid blender 1, vortex-like conducting element 2, liquid line 3 can assemble after machined into copper, aluminum respectively; When producing in enormous quantities, eddy current vapour-liquid spray nozzle adopts aluminium and high temperature resistant bakelite integral body to be pressed into mould, and also available silicon nitride ceramics sintering is made.
Eddy current vapour-liquid injector mixer when work, when steam in venturi tube chamber 5 forward in the process of flowing, along with dwindling gradually of flow area, flow velocity increases gradually, pressure reduces gradually, forms negative pressure at the crawlway place, and cleaning fluid constantly is inhaled in the venturi tube chamber 5.The saturated vapour pressure of boiler export is 1.5-1.8kg/cm
2, drop to 0.4-0.5kg/cm through carrier pipe its steam pressure to the eddy current vapour-liquid spray nozzle
2, because pipeline wraps up in heat-insulating material outward, thus we this process as adiabatic process.Saturated vapor just becomes superheated steam through after the adiabatic expansion, and before absorbing cleaning fluid, steam is in this superheat state always.Cleaning fluid is subjected to the impact of high speed steam flow, and the drop that superheated steam constantly is crashed to pieces heat transferred forms stream-liquid two-phase flow.Stream-liquid two-phase flow decreases by the exit velocity of venturi tube chamber 5, close with atmospheric pressure, after entering the spiral stream guidance groove of vortex-like conducting element 2, drop is still constantly smashed by the high speed steam flow, and absorb the heat of superheated steam and vaporization constantly, synchronous with the steam flow that is accelerated, spray whirlpool and going out behind vortex-like conducting element.
Claims (4)
1. eddy current vapour-liquid spray nozzle, comprise vapour-liquid blender (1), vortex-like conducting element (2), liquid line (3), it is characterized in that vapour-liquid blender (1) is to be made by the metal material of column type, left side import department is an interior rib-loop interface (4), interior rib-loop interface (4) is connected with the boiler steam pipe rib-loop, it is horn-like on interior rib-loop interface (4) right side to be that two ends are, the centre is the venturi tube chamber (5) of crawlway, the right side of venturi tube chamber (5) is a column type inner chamber body (6), there is inside chamfering in the exit of column type inner chamber body (6), have the liquid line patchhole (7) tangent with vapour-liquid blender (1) axis in the top of vapour-liquid blender (1), axis direction along liquid line patchhole (7) also has the aperture (8) that is less than or equal to the liquid line internal diameter, aperture (8) communicates with the end of venturi tube chamber (5) crawlway, liquid line (3) inserts in the liquid line patchhole (7), both tight fits, the import of liquid line (3) is connected with the soda liquor container outlet by rubber hose, vortex-like conducting element (2) is seated in the column type inner chamber body (6), both tight fits, vortex-like conducting element (2) is made by the metal short cylinder, outer surface is processed with four spiral stream guidance grooves, and the water conservancy diversion notch of vortex-like conducting element (2) import department is streamlined.
2. eddy current vapour-liquid spray nozzle according to claim 1 is characterized in that the internal diameter of the interior rib-loop interface (4) of described vapour-liquid blender (1) is 14mm; The internal diameter of venturi tube chamber (5) crawlway is 3mm; The chamfering in column type inner chamber body (6) exit is 40 °.
3. eddy current vapour-liquid spray nozzle according to claim 1, the diameter that it is characterized in that described liquid line patchhole (7) is 5mm, and liquid line patchhole (7) axis and vapour-liquid blender (1) axis are 30 ° of angles, and the internal diameter of liquid line (3) is 1.5mm.
4. eddy current vapour-liquid spray nozzle according to claim 1 is characterized in that the long 15mm of described vortex-like conducting element (2), every spiral stream guidance groove interval 90 degree, and spiral stream guidance groove width 4mm, spiral stream guidance groove depth 3mm, spiral stream guidance slot pitch are 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039246 CN2877882Y (en) | 2006-01-26 | 2006-01-26 | Eddy flow steam-liquid atomization injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039246 CN2877882Y (en) | 2006-01-26 | 2006-01-26 | Eddy flow steam-liquid atomization injector |
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| Publication Number | Publication Date |
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| CN2877882Y true CN2877882Y (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039246 Expired - Fee Related CN2877882Y (en) | 2006-01-26 | 2006-01-26 | Eddy flow steam-liquid atomization injector |
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Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995127A (en) * | 2010-11-16 | 2011-03-30 | 东南大学 | Device and method for preparing granular ice by injection and atomization |
| CN102029270A (en) * | 2010-12-31 | 2011-04-27 | 甘继东 | Siphon device and siphon-type cleaning gun |
| CN102101078A (en) * | 2011-01-21 | 2011-06-22 | 卞庄 | Three-way pipe for steam jet equipment |
| CN102179328A (en) * | 2011-05-06 | 2011-09-14 | 新疆农垦科学院 | Effervescent atomization medicament applying spray head |
| CN102192507A (en) * | 2010-02-18 | 2011-09-21 | 通用电气公司 | Multi-tube premixing injector |
| CN102205289A (en) * | 2010-03-31 | 2011-10-05 | 深圳华强智能技术有限公司 | Atomizing sprayer |
| RU2448751C1 (en) * | 2010-12-24 | 2012-04-27 | Олег Савельевич Кочетов | Fire fighting installation |
| CN103043619A (en) * | 2011-10-17 | 2013-04-17 | 江苏圣奥化学科技有限公司 | Double-fluid quenching device |
| CN103188941A (en) * | 2010-09-22 | 2013-07-03 | 赛达国际公司 | Thermal fogging device using a liquid, and related method |
| CN103195462A (en) * | 2013-04-16 | 2013-07-10 | 中国矿业大学 | Liquid addition and atomization device for mine nitrogen-filling process |
| CN103846026A (en) * | 2014-02-10 | 2014-06-11 | 西安交通大学 | Venturi mixer with adjustable shrinkage hole on throat |
| CN104624423A (en) * | 2013-11-06 | 2015-05-20 | 河北工业大学 | Bubble atomizing nozzle and adjusting method of bubble atomizing nozzle |
| CN104759372A (en) * | 2015-04-24 | 2015-07-08 | 河海大学常州校区 | Vortex street atomizing nozzle |
| CN104772242A (en) * | 2015-04-24 | 2015-07-15 | 河海大学常州校区 | Atomization spray nozzle |
| CN105032810A (en) * | 2015-06-11 | 2015-11-11 | 杭州电子科技大学 | Washing device of eddy type water jet instrument equipment |
| CN105413937A (en) * | 2014-09-16 | 2016-03-23 | 上海百芬环境科技有限公司 | Micro atomization structure |
| CN105457939A (en) * | 2016-01-15 | 2016-04-06 | 浙江和利氢能科技股份有限公司 | Visual automobile disinfection and cleaning device |
| CN105477669A (en) * | 2014-09-16 | 2016-04-13 | 上海百芬环境科技有限公司 | Inner-mixing aroma-diffusing instrument |
| CN106141805A (en) * | 2016-09-20 | 2016-11-23 | 中北大学 | A kind of combined type oil on water atomizer |
| WO2017034192A1 (en) * | 2015-08-21 | 2017-03-02 | Jung-Ho Cho | Cleaning apparatus using liquid mixed with gas and water discharge module structure for cleaning apparatus |
| CN106492634A (en) * | 2016-11-30 | 2017-03-15 | 南京右转信息科技有限公司 | A kind of flue gas desulfurization and denitrification system |
| CN108212876A (en) * | 2017-12-18 | 2018-06-29 | 重庆凯西驿电子科技有限公司 | Graphene chip manufacture device |
| CN109382231A (en) * | 2018-10-25 | 2019-02-26 | 辽宁工程技术大学 | A kind of probe-type supersonic speed pneumatic nozzle |
| CN110035832A (en) * | 2019-03-08 | 2019-07-19 | 璞真生活有限公司 | Atomizer and atomising device |
| CN110102416A (en) * | 2019-05-05 | 2019-08-09 | 西南石油大学 | A kind of oscillation self-priming nozzle |
| CN110465418A (en) * | 2019-09-03 | 2019-11-19 | 镇江市长江机电设备厂有限公司 | It is a kind of for being atomized the atomizer of oil purifier |
| CN110624369A (en) * | 2019-10-14 | 2019-12-31 | 杭州富阳松连食品有限公司 | Venturi tube applied to plate-type absorption tower |
| CN110913933A (en) * | 2017-07-19 | 2020-03-24 | 荷兰可再生能源公司 | Dispensing system for cryogenic skin treatment |
| CN112096012A (en) * | 2020-09-16 | 2020-12-18 | 国家电网有限公司 | Hand-held pneumatic cement spraying device |
| CN113426316A (en) * | 2021-07-28 | 2021-09-24 | 佛山市道同机械设备科技有限公司 | Vapor-liquid mixing device |
| CN114215984A (en) * | 2021-12-14 | 2022-03-22 | 拓荆科技股份有限公司 | Semiconductor equipment and gas conveying structure thereof |
| CN114658580A (en) * | 2022-03-15 | 2022-06-24 | 上海工程技术大学 | Air-entraining jet nozzle with swirl groove on head guide |
| CN115738556A (en) * | 2022-11-21 | 2023-03-07 | 哈尔滨工程大学 | Novel venturi scrubber with mixing turbulence fins |
-
2006
- 2006-01-26 CN CN 200620039246 patent/CN2877882Y/en not_active Expired - Fee Related
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192507A (en) * | 2010-02-18 | 2011-09-21 | 通用电气公司 | Multi-tube premixing injector |
| CN102205289B (en) * | 2010-03-31 | 2013-03-13 | 深圳华强智能技术有限公司 | Atomizing sprayer |
| CN102205289A (en) * | 2010-03-31 | 2011-10-05 | 深圳华强智能技术有限公司 | Atomizing sprayer |
| CN103188941A (en) * | 2010-09-22 | 2013-07-03 | 赛达国际公司 | Thermal fogging device using a liquid, and related method |
| CN101995127A (en) * | 2010-11-16 | 2011-03-30 | 东南大学 | Device and method for preparing granular ice by injection and atomization |
| RU2448751C1 (en) * | 2010-12-24 | 2012-04-27 | Олег Савельевич Кочетов | Fire fighting installation |
| CN102029270A (en) * | 2010-12-31 | 2011-04-27 | 甘继东 | Siphon device and siphon-type cleaning gun |
| CN102101078A (en) * | 2011-01-21 | 2011-06-22 | 卞庄 | Three-way pipe for steam jet equipment |
| CN102179328B (en) * | 2011-05-06 | 2012-08-08 | 新疆农垦科学院 | Effervescent atomization medicament applying spray head |
| CN102179328A (en) * | 2011-05-06 | 2011-09-14 | 新疆农垦科学院 | Effervescent atomization medicament applying spray head |
| CN103043619B (en) * | 2011-10-17 | 2016-03-23 | 江苏圣奥化学科技有限公司 | Double-fluid quenching device |
| CN103043619A (en) * | 2011-10-17 | 2013-04-17 | 江苏圣奥化学科技有限公司 | Double-fluid quenching device |
| CN103195462A (en) * | 2013-04-16 | 2013-07-10 | 中国矿业大学 | Liquid addition and atomization device for mine nitrogen-filling process |
| CN104624423A (en) * | 2013-11-06 | 2015-05-20 | 河北工业大学 | Bubble atomizing nozzle and adjusting method of bubble atomizing nozzle |
| CN103846026A (en) * | 2014-02-10 | 2014-06-11 | 西安交通大学 | Venturi mixer with adjustable shrinkage hole on throat |
| CN103846026B (en) * | 2014-02-10 | 2015-10-21 | 西安交通大学 | The venturi mixer of adjustable contraction is contained in a kind of throat |
| CN105413937A (en) * | 2014-09-16 | 2016-03-23 | 上海百芬环境科技有限公司 | Micro atomization structure |
| CN105477669A (en) * | 2014-09-16 | 2016-04-13 | 上海百芬环境科技有限公司 | Inner-mixing aroma-diffusing instrument |
| CN104772242A (en) * | 2015-04-24 | 2015-07-15 | 河海大学常州校区 | Atomization spray nozzle |
| CN104759372A (en) * | 2015-04-24 | 2015-07-08 | 河海大学常州校区 | Vortex street atomizing nozzle |
| CN105032810A (en) * | 2015-06-11 | 2015-11-11 | 杭州电子科技大学 | Washing device of eddy type water jet instrument equipment |
| CN105032810B (en) * | 2015-06-11 | 2017-03-01 | 杭州电子科技大学 | A kind of cleaning device of eddy current type water jet instrument and equipment |
| WO2017034192A1 (en) * | 2015-08-21 | 2017-03-02 | Jung-Ho Cho | Cleaning apparatus using liquid mixed with gas and water discharge module structure for cleaning apparatus |
| CN105457939A (en) * | 2016-01-15 | 2016-04-06 | 浙江和利氢能科技股份有限公司 | Visual automobile disinfection and cleaning device |
| CN106141805A (en) * | 2016-09-20 | 2016-11-23 | 中北大学 | A kind of combined type oil on water atomizer |
| CN106492634A (en) * | 2016-11-30 | 2017-03-15 | 南京右转信息科技有限公司 | A kind of flue gas desulfurization and denitrification system |
| CN110913933A (en) * | 2017-07-19 | 2020-03-24 | 荷兰可再生能源公司 | Dispensing system for cryogenic skin treatment |
| CN110913933B (en) * | 2017-07-19 | 2022-07-22 | 荷兰可再生能源公司 | Dispensing system for cryogenic skin treatment |
| CN108212876A (en) * | 2017-12-18 | 2018-06-29 | 重庆凯西驿电子科技有限公司 | Graphene chip manufacture device |
| CN109382231A (en) * | 2018-10-25 | 2019-02-26 | 辽宁工程技术大学 | A kind of probe-type supersonic speed pneumatic nozzle |
| CN109382231B (en) * | 2018-10-25 | 2020-08-25 | 辽宁工程技术大学 | Probe-type supersonic pneumatic atomizing nozzle |
| CN110035832A (en) * | 2019-03-08 | 2019-07-19 | 璞真生活有限公司 | Atomizer and atomising device |
| CN110102416A (en) * | 2019-05-05 | 2019-08-09 | 西南石油大学 | A kind of oscillation self-priming nozzle |
| CN110102416B (en) * | 2019-05-05 | 2024-03-26 | 西南石油大学 | Oscillating self-priming nozzle |
| CN110465418A (en) * | 2019-09-03 | 2019-11-19 | 镇江市长江机电设备厂有限公司 | It is a kind of for being atomized the atomizer of oil purifier |
| CN110624369A (en) * | 2019-10-14 | 2019-12-31 | 杭州富阳松连食品有限公司 | Venturi tube applied to plate-type absorption tower |
| CN112096012A (en) * | 2020-09-16 | 2020-12-18 | 国家电网有限公司 | Hand-held pneumatic cement spraying device |
| CN113426316A (en) * | 2021-07-28 | 2021-09-24 | 佛山市道同机械设备科技有限公司 | Vapor-liquid mixing device |
| CN114215984A (en) * | 2021-12-14 | 2022-03-22 | 拓荆科技股份有限公司 | Semiconductor equipment and gas conveying structure thereof |
| CN114658580A (en) * | 2022-03-15 | 2022-06-24 | 上海工程技术大学 | Air-entraining jet nozzle with swirl groove on head guide |
| CN115738556A (en) * | 2022-11-21 | 2023-03-07 | 哈尔滨工程大学 | Novel venturi scrubber with mixing turbulence fins |
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