CN2738834Y - Nozzle core for water mist fire-fighting nozzle - Google Patents
Nozzle core for water mist fire-fighting nozzle Download PDFInfo
- Publication number
- CN2738834Y CN2738834Y CN 200420062755 CN200420062755U CN2738834Y CN 2738834 Y CN2738834 Y CN 2738834Y CN 200420062755 CN200420062755 CN 200420062755 CN 200420062755 U CN200420062755 U CN 200420062755U CN 2738834 Y CN2738834 Y CN 2738834Y
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- CN
- China
- Prior art keywords
- nozzle core
- nozzle
- utility
- model
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000003595 mist Substances 0.000 title abstract 2
- 239000000779 smoke Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 abstract 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000000889 atomisation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model relates to a fire-fighting extinguishing apparatus, concretely a nozzle core for water mist fire-fighting nozzle. The middle part of the nozzle core is a cylinder, the top is a cone whose reverse angle is 45 DEG, the lower part periphery of the nozzle core is provided with an outer screw 2 whose upper part is homogeneously provided with fluid jet grooves 1 along the flank. The utility model is characterized in that the fluid jet grooves 1 are constant section linear grooves which is symmetrically distributed around the nozzle core axial cord, the number of the linear groove is more than two, and the deepness direction is formed a 45+-5 DEG included angle with the nozzle core axle center and the common crossing point of the symmetry plane, the conical surface and the cylinder surface by the nozzle core. The axis direction and the bus-bar of the conical surface are formed a 45+-5 DEG included angle, the outer screw 2 peripheral side of the nozzle core is provided with more than two axial intake channels 4 symmetrically distributed along the nozzle core axial cord, and the direction of the fluid jet groove 1 has opposite direction with the outer screw 2. The utility model has simple structure, convenient processing and low cost, which is suitable for cold forming and canreduce mechanical operating quantity.
Description
Technical field
The utility model relates to a kind of fire-fighting fire extinguishing equipment, exactly is a kind of nozzle core that is used for thin water smoke applicator.
Background technology
The water smoke fire prevention is a kind of new fire-fighting technique that rises at US and European at the end of last century, its method be with water from the atomizing applicator with vaporific ejection, the tiny globule evaporates in a large number, play the effect of the oxygen at rapid cooling and isolated burning object place, can suppress and put out incipient fire at short notice.Chinese patent ZL02245559.0, the patent of " fire-fighting atomization of liquid shower nozzle " by name, disclosed a kind of fire-fighting atomization of liquid shower nozzle that comprises nozzle core and nozzle carrier, the external form of its described nozzle core is a cylinder, its underpart periphery is provided with external screw thread, the both sides symmetry at its middle part be provided with two transverse grooves, be provided with an axial blind hole in the bottom of nozzle core, the intersection of the top of this axial blind hole and two transverse grooves forms opening, top at nozzle core is provided with oblique slot along the side, and the direction of oblique slot becomes the angle of 40-50 degree with the axis of nozzle core.The direction of the oblique slot of above-mentioned this nozzle core is described too rough, can't process definitely, and the thin water smoke that atomization of water current can not be become fire house to need is so above-mentioned fire-fighting also just can't be finished the purpose of fire extinguishing with atomization of liquid shower nozzle.
The utility model content
The purpose of this utility model exactly in order to address the above problem, provides a kind of rational in infrastructure, and atomizing effect is good, is applicable to the nozzle core of the thin water smoke applicator of mesolow.
Solution of the present utility model is: the utility model relates to a kind of nozzle core that is used for thin water smoke applicator, the middle part of nozzle core is a cylinder, the top is that a chamfering is the cone of 45 degree, the nozzle core lower, outer perimeter is provided with external screw thread, evenly be provided with the jet groove at an upper portion thereof along the side, it is characterized in that described jet groove be around the nozzle core axis be symmetrically distributed and quantity at the uiform section straight-line groove more than two, its depth direction is by the nozzle core plane of symmetry and taper seat, the common intersection of three faces in the face of cylinder becomes 45 ± 5 degree angles with the nozzle core axle center, its axis direction becomes 45 ± 5 degree angles with the bus of taper seat.
As further improvement of the utility model, be provided with two axial intake chambers that are symmetrically distributed with upper edge nozzle core axis in all sides of the external screw thread of nozzle core.
The direction of jet groove of the present utility model obtains by adopting the following step: referring to Fig. 1, nozzle core plane of symmetry A comprises its axis oo, and this face and taper seat, three faces in the face of cylinder intersect at a point jointly, and a point is the basic point of described jet groove.The intersection on the plane of symmetry A and the face of cylinder is ab, the outer extension line ak of ab is rotated counterclockwise 45 around a point and spends into the ac line in the A plane, be normal with the ac line again, crosses a point and makes the plane B perpendicular to the A plane, the intersection on A plane and B plane is the ad line, and the ad line comprises a bus on the taper seat.Cross a point and make a straight line ae who becomes miter angle with the ad line in the B plane, the plane that ae and ac constitute is exactly the plane of symmetry of jet groove, and ae is the axis direction of jet groove.
The angle of above-mentioned ac and ak (or oo) and the angle between ae and the ad can change in 45 ± 5 degree scopes.Angle between ae and the ad can be+45 degree promptly left-handed groove; Also can be-45 degree, i.e. dextrorotation grooves.If the external screw thread of nozzle core is dextrorotation, then the jet groove just adopts left-handed groove, makes the two direction opposite, and the moment of reaction that jet produces when working is like this tightened effect to nozzle core.
The beneficial effects of the utility model are to adopt the jet groove of special angle, rely on pressure of supply water (being not more than 12bar), force current from jet trench flow mistake, formation has the jet of enough axial momentums and tangential momentum, when jet flows in the funnel-shaped chamber of nozzle core front end, under the acting in conjunction of axially power and centrifugal force, spray away from spout rapidly, form the thin water smoke that fire house needs, atomizing effect is greatly improved than prior art.The utility model is simple in structure, and is easy to process, is suitable for cold forming, can reduce machining amount, and cost is lower.
Description of drawings
Fig. 1 is a jet groove direction schematic diagram of the present utility model,
Fig. 2 is a front view of the present utility model,
Fig. 3 is a vertical view of the present utility model,
Fig. 4 is user mode figure of the present utility model.
The specific embodiment
Referring to Fig. 2, Fig. 3, Fig. 4, a kind of nozzle core that is used for thin water smoke applicator, the middle part of nozzle core are a cylinder, and the top is that a chamfering is the cone of 45 ± 5 degree, the bottom is provided with a cross groove 3, with the convenient screwdriver that uses nozzle core is screwedly mounted in the nozzle carrier.The nozzle core lower, outer perimeter is provided with external screw thread 2, and external screw thread 2 is provided with 2 axial intake chambers 4.Referring to Fig. 1, nozzle core top evenly is provided with jet groove 1 along the side, jet groove 1 is to be symmetrically distributed and quantity is two uiform section straight-line groove around the nozzle core axis, its depth direction is to become 45 ± 5 degree angles with the nozzle core axle center by the nozzle core plane of symmetry and the common intersection of taper seat, three faces in the face of cylinder, and its axis direction becomes 45 ± 5 degree angles with the bus of taper seat.During processing jet groove 1, earlier it is clamped on the dividing head of horizontal milling machine, its axis normal is in the work top of milling machine, rotate dividing head then, make the axis of nozzle core become required inclination angle with the trend of the circular milling cutter of milling machine, adjust cutting depth, just can form a jet groove 1 through a point one-pass.Again with nozzle core along its axis Rotate 180 degree, repeat above-mentioned steps, promptly obtain the utility model.
The utility model can also obtain the thin water smoke applicator of different atomizing particle sizes, to adapt to the fire-fighting requirement of different object of protections by changing the size of jet groove 1.
Claims (3)
1. nozzle core that is used for thin water smoke applicator, the middle part of nozzle core is a cylinder, the top is that a chamfering is the cone of 45 degree, the nozzle core lower, outer perimeter is provided with external screw thread (2), evenly be provided with jet groove (1) at an upper portion thereof along the side, it is characterized in that described jet groove (1) be around the nozzle core axis be symmetrically distributed and quantity at the uiform section straight-line groove more than two, its depth direction is by the nozzle core plane of symmetry and taper seat, the common intersection of three faces in the face of cylinder becomes 45 ± 5 degree angles with the nozzle core axle center, its axis direction becomes 45 ± 5 degree angles with the bus of taper seat.
2. a kind of nozzle core that is used for thin water smoke applicator according to claim 1 is characterized in that all sides of external screw thread (2) at nozzle core are provided with two axial intake chambers (4) that are symmetrically distributed with upper edge nozzle core axis.
3. a kind of nozzle core that is used for thin water smoke applicator according to claim 1 and 2.The direction that it is characterized in that jet groove (1) can be left-handed or dextrorotation, and opposite with external screw thread (2) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062755 CN2738834Y (en) | 2004-07-08 | 2004-07-08 | Nozzle core for water mist fire-fighting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062755 CN2738834Y (en) | 2004-07-08 | 2004-07-08 | Nozzle core for water mist fire-fighting nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2738834Y true CN2738834Y (en) | 2005-11-09 |
Family
ID=35353903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062755 Expired - Fee Related CN2738834Y (en) | 2004-07-08 | 2004-07-08 | Nozzle core for water mist fire-fighting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2738834Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260711A (en) * | 2010-09-06 | 2013-08-21 | 维德消防设备公司 | Low pressure watermist nozzle manifold |
| CN103272355A (en) * | 2013-05-28 | 2013-09-04 | 中国科学技术大学 | Liquid fire extinguishing agent atomizing and spraying head |
| CN103405873A (en) * | 2013-07-17 | 2013-11-27 | 西华大学 | Combined fine water mist sprinkler head |
| CN106861101A (en) * | 2017-04-11 | 2017-06-20 | 广州广消阀门有限公司 | A kind of fluorinated ketone fire-smothering gear |
-
2004
- 2004-07-08 CN CN 200420062755 patent/CN2738834Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260711A (en) * | 2010-09-06 | 2013-08-21 | 维德消防设备公司 | Low pressure watermist nozzle manifold |
| CN103260711B (en) * | 2010-09-06 | 2015-08-12 | 维德消防设备公司 | Low pressure watermist nozzle manifold |
| US10675642B2 (en) | 2010-09-06 | 2020-06-09 | Vid Fire-Kill Aps | Low pressure watermist nozzle manifold |
| CN103272355A (en) * | 2013-05-28 | 2013-09-04 | 中国科学技术大学 | Liquid fire extinguishing agent atomizing and spraying head |
| CN103272355B (en) * | 2013-05-28 | 2015-06-17 | 中国科学技术大学 | Liquid fire extinguishing agent atomizing and spraying head |
| CN103405873A (en) * | 2013-07-17 | 2013-11-27 | 西华大学 | Combined fine water mist sprinkler head |
| CN106861101A (en) * | 2017-04-11 | 2017-06-20 | 广州广消阀门有限公司 | A kind of fluorinated ketone fire-smothering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI YUANJIE ELECTROMECHANICAL TECHNOLOGY CO., L Free format text: FORMER OWNER: LIU RONGJIN Effective date: 20070727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070727 Address after: 230031 No. 4, Qingyang Road, Hefei, Anhui, 603 Patentee after: Hefei source source of electrical and Mechanical Technology Co., Ltd. Address before: 230026 veteran cadre department, University of Science and Technology of China, Anhui, Hefei Patentee before: Liu Rongjin |
|
| 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 |