CN2870993Y - Superfine medium and low-pressure two-phase flow spray nozzle - Google Patents
Superfine medium and low-pressure two-phase flow spray nozzle Download PDFInfo
- Publication number
- CN2870993Y CN2870993Y CN 200520039269 CN200520039269U CN2870993Y CN 2870993 Y CN2870993 Y CN 2870993Y CN 200520039269 CN200520039269 CN 200520039269 CN 200520039269 U CN200520039269 U CN 200520039269U CN 2870993 Y CN2870993 Y CN 2870993Y
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- nozzle
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Abstract
The utility model belongs to the fire fighting technical field, specifically relates to a superfine medium and low-pressure two-phase flow spray nozzle. The utility model nozzle is composed of a nozzle shell, a mixing chamber, a gas flue, a water flue and a spray core. The spray cores are dicephalia spiral flow passage in the nozzle shell connected with gas and water mixing chamber and water flue respectively. The gas flue and the nozzle mixing chamber are lateraling tangential. The utility model can get micro-size spray at low water pressure and gas pressure. Compared with similar products, the utility model is provided with the advantages of low pressure, ultra-fine mist and large flow. The utility model is simple in structure, easy for processing and in line with the flexible and mobile requirements of actual fire fighting.
Description
Technical field
The utility model belongs to the fire-fighting equipment technical field, is specifically related to a kind of mesolow two phase flow superfine spray nozzle.
Background technology
Thin water smoke as extinguishing chemical because water saving and environmentally safe, its range of application is constantly expanded, thin water smoke nineteen forties begins to use at fire-fighting domain, begin to be applied to category-A, the category-B fire, afterwards along with the development of technology, can produce the more superfine spray of fine particle (＜100 μ m), thin water smoke begins at appliance fire, obtain in the smoke elimination field to use, when being applied to eliminate smoke, the surface area of unit bodies ponding particulate is big more, and the water mean particle dia is more little, and flow is big more, the effect that eliminates smoke is good more, and small particle diameter can also guarantee the electrical apparatus insulation in the appliance fire simultaneously.So the research of big flow superfine spray particle preparation technique is necessary.
According to preparation method, water mist system can be divided into single-phase flow water mist system and air-water two phase flow water mist system.By operating pressure, water mist system can be divided into low-pressure system (＜1.21MPa), medium voltage network (1.21～3.45MPa) and high-pressure system (＞3.45MPa).The fire-fighting superfine spray normally obtained by the single-phase flow hydraulic spray nozzle of high drive in the past, the single-phase flow high-pressure system can be produced the more superfine spray of fine particle, but pressure height, the pressure vessel wall thickness increases, the corresponding raising of cost, weight ratio middle low-pressure system height is applicable to fixed system, is not easy to fire-fighting motor-driven use under battle conditions.And middle low-pressure system pressure is low, and is in light weight, and cost is low, is fit to portable use, and shortcoming is that the thin water smoke or the flow of existing mesolow mist-generating nozzle generation is little, or particle diameter is thick, can not fully satisfy the flexible under battle conditions needs of fire-fighting.
Summary of the invention
The mesolow two phase flow superfine spray nozzle that the utility model purpose is to provide a kind of simple in structure, compact, dependable performance, particle diameter is ultra-fine, flow is big, can portable use.
The mesolow two phase flow superfine spray nozzle that the utility model proposes, form by nozzle body (1), spray core (2), air flue (3), hybrid chamber (4) etc., wherein, air flue (3) is L shaped passage, be communicated with air water hybrid chamber (4) sidepiece, hybrid chamber (4) one ends connect spray core (2), water channel (5) successively, and the other end is a jet expansion.
In the utility model, spray core (2) is a twin-feed spiral type runner.
In the utility model, air flue (3) import and hybrid chamber (4) side direction are tangent.
In the utility model, spray core (2) runner rotation direction is consistent with the rotation direction that air flue tangentially enters hybrid chamber (4).
Nozzle described in the utility model all adopts with water container and gas cylinder and is threaded.
During the utility model work, the Compressed Gas that gas cylinder produces tangentially enters hybrid chamber (4) through air flue (3), mix in hybrid chamber (4) collision with the press water that ejects by spiral spray core (2) in the water container, current are further atomized, thereby produce high-speed, highdensity superfine spray.
The utility model can lower water storage pressure (≤0.8MPa) and supply gas pressure (≤obtain the superfine spray of average grain diameter under 1.6MPa) less than 100 μ, has the advantage that pressure is low, particle diameter is thin, flow is big compared with similar products, simple in structure, compact, be convenient to processing, dependable performance meets the flexible under battle conditions requirement of fire-fighting.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structure chart of the utility model spray core.
1 is nozzle body among the figure, and 2 are the spray core, and 3 is air flue, and 4 is hybrid chamber, and 5 is water channel, and 6 is the twin-feed spiral hole.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Embodiment 1, adopt casting or Machining Technology, make the nozzle body and the spray core of Fig. 1 and Fig. 3 shape, nozzle body water channel inlet diameter is Φ 16mm, and the air flue inlet diameter is Φ 14mm, and the hybrid chamber diameter is Φ 14mm, twin-feed spiral spray core pitch is 13.2mm, the spray core adopts the interference fits mode to be positioned in the nozzle body, and the placement twin-feed spiral guarantees consistent with the air flue tangential entry rotation direction of hybrid chamber when spraying core, and hybrid chamber chamber wall is opened a circular tangential admission mouth and is communicated with air flue.The nozzle volume that adopts this kind mode to make is little, particle diameter is ultra-fine, flow is big, spray effect is good.
Claims (4)
1, a kind of mesolow two phase flow superfine spray nozzle, form by nozzle body, spray core, air flue, hybrid chamber, it is characterized in that air flue (3) is L shaped passage, links to each other with air water hybrid chamber (4) sidepiece, hybrid chamber (4) one ends connect spray core (2), water channel (5) successively, and the other end is a jet expansion.
2, nozzle as claimed in claim 1, it is characterized in that spraying core (2) is twin-feed spiral type runner.
3, nozzle as claimed in claim 1 is characterized in that air flue (3) import and hybrid chamber (4) side direction are tangent.
4, nozzle as claimed in claim 1, it is consistent with the rotation direction that air flue tangentially enters hybrid chamber (4) to it is characterized in that spraying core (2) runner rotation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039269 CN2870993Y (en) | 2005-01-27 | 2005-01-27 | Superfine medium and low-pressure two-phase flow spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039269 CN2870993Y (en) | 2005-01-27 | 2005-01-27 | Superfine medium and low-pressure two-phase flow spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2870993Y true CN2870993Y (en) | 2007-02-21 |
Family
ID=37739343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039269 Expired - Fee Related CN2870993Y (en) | 2005-01-27 | 2005-01-27 | Superfine medium and low-pressure two-phase flow spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2870993Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908738A (en) * | 2012-09-26 | 2013-02-06 | 四川威特龙消防设备有限公司 | Two-phase flow superfine water mist nozzle |
| CN103008136A (en) * | 2012-12-28 | 2013-04-03 | 山西泰来鸿纳科技有限公司 | Atomizer for air purification |
| CN103405874A (en) * | 2013-08-30 | 2013-11-27 | 广东胜捷工业安全技术有限公司 | Double-phase-flow fire-extinguishing nozzle |
| CN104014096A (en) * | 2014-06-20 | 2014-09-03 | 武汉科技大学 | Direct-through double-helix convergent type water pressure atomizing spray nozzle |
| CN104594273A (en) * | 2015-01-19 | 2015-05-06 | 山东建筑大学 | Water saving watering cart |
| CN106862220A (en) * | 2017-01-13 | 2017-06-20 | 江苏大学 | A kind of explosive place powder dog-house is calmed the anger low pressure water jet dust suction dust arrester |
| CN111390307A (en) * | 2020-04-23 | 2020-07-10 | 昆山正多荣五金机械有限公司 | Electric spark machining equipment with ultrasonic assistance |
-
2005
- 2005-01-27 CN CN 200520039269 patent/CN2870993Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908738A (en) * | 2012-09-26 | 2013-02-06 | 四川威特龙消防设备有限公司 | Two-phase flow superfine water mist nozzle |
| CN102908738B (en) * | 2012-09-26 | 2014-12-17 | 四川威特龙消防设备有限公司 | Two-phase flow superfine water mist nozzle |
| CN103008136A (en) * | 2012-12-28 | 2013-04-03 | 山西泰来鸿纳科技有限公司 | Atomizer for air purification |
| CN103405874A (en) * | 2013-08-30 | 2013-11-27 | 广东胜捷工业安全技术有限公司 | Double-phase-flow fire-extinguishing nozzle |
| CN104014096A (en) * | 2014-06-20 | 2014-09-03 | 武汉科技大学 | Direct-through double-helix convergent type water pressure atomizing spray nozzle |
| CN104014096B (en) * | 2014-06-20 | 2016-05-25 | 武汉科技大学 | A kind of straight-through double helix convergence type hydraulic atomizing nozzle |
| CN104594273A (en) * | 2015-01-19 | 2015-05-06 | 山东建筑大学 | Water saving watering cart |
| CN106862220A (en) * | 2017-01-13 | 2017-06-20 | 江苏大学 | A kind of explosive place powder dog-house is calmed the anger low pressure water jet dust suction dust arrester |
| CN111390307A (en) * | 2020-04-23 | 2020-07-10 | 昆山正多荣五金机械有限公司 | Electric spark machining equipment with ultrasonic assistance |
| CN111390307B (en) * | 2020-04-23 | 2021-12-28 | 昆山正多荣五金机械有限公司 | Electric spark machining equipment with ultrasonic assistance |
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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 |
Granted publication date: 20070221 Termination date: 20130127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |