CN209108502U - Fine mist spray head - Google Patents
Fine mist spray head Download PDFInfo
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- CN209108502U CN209108502U CN201821717354.8U CN201821717354U CN209108502U CN 209108502 U CN209108502 U CN 209108502U CN 201821717354 U CN201821717354 U CN 201821717354U CN 209108502 U CN209108502 U CN 209108502U
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- conical surface
- spray
- head body
- fine mist
- spray orifice
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Abstract
The utility model discloses a kind of fine mist spray heads, it is related to mixing plant technical field, its key points of the technical solution are that including head body, the head body inner hollow forms fluid channel, the open at one end and the other end of head body are equipped with multiple spray orifices being connected to fluid channel, and the head body is equipped with the conical surface that at least two cone angles are sequentially increased close to one end of spray orifice；Multiple spray orifices are uniformly distributed in a ring on each conical surface, and the central axes of the spray orifice axis on the same conical surface and head body intersect at a point, the upper spray orifice axis convergent point interval setting of the two neighboring conical surface.The utility model solves the problems, such as current spray head because of spraying blind area larger impact extinguishing effect, can effectively reduce blind area, improve spray head extinguishing property.
Description
Technical field
The utility model relates to spray head technical fields, more specifically, it is related to a kind of fine mist spray head.
Background technique
Fine mist spray head is in fine spray extinguisher.Typical fine mist spray head includes head body, the spray head
Ontology is being internally provided with fluid channel, and front end is provided with the outlet for spraying water mists.
In Water Mist Fire Extinguishing Technique, fine spray extinguisher is sprayed under defined operating pressure using fine mist spray head
Fire is put out a fire or controlled to water mists.The extinguishing mechanism of fine water mist fire-extinguishing system is mainly cooling, suffocate inerting and additive effect.Its
Cooling effect is shown: when water is broken down into many tiny water droplets, surface area can be greatly increased, and evaporation time contracts significantly
Short, using high-pressure water mist fire-extinguishing technology, the more traditional fire-fighting technique of generated water mists has bigger active area and heat
Exchange area.It destroys the Thermal feedback cooling flame surface of fuel, while droplet can penetrate flame, can greatly improve fire extinguishing effect
Rate.Its inerting effect of suffocating shows high-pressure water mist by evaporation, and the volume of water increases to nearly 1700 times.It is attached that it dilutes fire source
Oxygen in near-space gas, inerting firing-fighting medium limits the outside transmission of fire source, the diffusion of heavy pressure fine spray in this process
Not only can enter zone of origin and also can anti-block inflow.Opposing gas fire extinguishing, high-pressure fine water mist fire-extinguishing system do not require completely
Closed space.After the potential energy of heavy pressure fine spray sufficiently discharges, complete fire source is hidden in the vapor of evaporation, with
Just fire can suffocate in seconds.The concentration about 21% of oxygen in usual air, when the concentration of oxygen is reduced immediately from fire source space
When to 16%~18%, fire source can inhibit extinguishing.Therefore, this technology is used more and more widely.
CN2902345Y discloses a kind of fine mist spray head, and the nozzle for setting formula of separation is mounted on head body front end
On inclined-plane, when swiftly flowing water passes through the nozzle, spiral helicine atomization fuse of the water flow in the nozzle is generated
The change of the direction of motion, to form atomization.However, this configuration reduces the kinetic energy of water, so that atomizing effect, penetration power subtract
It is weak.Also, spray cone angle is single, and when spurting water mists, radius of protection is small and is in carbon fiber, will form below spray head larger
Spraying blind area.
CN201632338U discloses a kind of fine mist spray head, and the center line convergence of multiple clear openings of the spray head passes through ball
The centre of sphere of coronal front end.Although the spray orifice of this straight-through cellular type obtains biggish penetration power, but can only carry out a mist
Change, therefore atomizing effect is still poor.Since the center line convergence of multiple clear openings is by the centre of sphere, the vertex of a cone that all spray orifices are formed is real
Be on border it is public, it is spraying mutual overlapping which has limited spraying, be unfavorable for being sprayed the reduction and elimination of blind area.
CN101058014B discloses a kind of high-pressure water mist fire-extinguishing nozzle, and there are two cones for the front end formation of the head body
Face, nozzle are correspondingly embedded in described two conical surfaces.However, similar with above-mentioned document, the center line of all nozzles is still
Convergence passes through public intersection point.In this way, effect is equally undesirable for the reduction and elimination of blind area by spraying.
To sum up, it needs to design a kind of new-type spray head that can reduce spraying blind area.
Utility model content
In view of the deficienciess of the prior art, passing through spray the purpose of this utility model is to provide a kind of fine mist spray head
Hole is staggered on the multistage conical surface, effectively reduces spraying blind area, and extinguishing property improves.
To achieve the above object, the utility model provides following technical solution: a kind of fine mist spray head, including spray head sheet
Body, the head body inner hollow form fluid channel, and the open at one end and the other end of head body are equipped with multiple and fluid
The spray orifice of channel connection, the head body are equipped with the conical surface that at least two cone angles are sequentially increased close to one end of spray orifice；It is multiple
Spray orifice is uniformly distributed in a ring on each conical surface, and the central axes of the spray orifice axis on the same conical surface and head body intersect at a point,
The upper spray orifice axis convergent point interval setting of the two neighboring conical surface.
By using above-mentioned technical proposal, in a non-operative state, do not flowed in the fluid channel inside fine mist spray head
Body injection.When needing to spray water, spray orifice sprays water to form water mists.Since spray orifice is located at the different conical surfaces, the cone-apex angle of the conical surface
It is gradually increased far from spray head adapter direction, the spray orifice on every grade of conical surface will generate corresponding hollow mist cone, the different conical surfaces
Multiple hollow mist cones are advantageously mutually overlapping to be overlapped, so that the water mist that head body sprays forms a big solid-cone, is had
Effect reduces blind area.
The utility model is further arranged to: the spray orifice is stepped hole, a stomidium of stepped hole and fluid channel connection
Diameter is 0.25-0.5mm, and other end aperture is 0.7-0.8mm, and the both ends inner hole junction of stepped hole is equipped with the transition part of chamfering.
By using above-mentioned technical proposal, compared with the consistent straight hole in traditional aperture, when spray head spurts liquid, due to
The direction of fluid does not change, and in the case where holding water mist higher penetration power, high-pressure fluid passes through volume expansion twice, by
This realizes secondary-atomizing, enhances atomizing effect.In addition, in processing step hole first exit orifice can be processed with tool, then again
The smaller inner hole in aperture is processed, the machining accuracy of inner hole is improved.
The utility model is further arranged to: aperture is that the stepped hole axial length of the part 0.7-0.8mm is 0.9-
1.0mm。
By using above-mentioned technical proposal, is conducive to water and is quickly spread after being sprayed in fluid channel, so that adjacent two beam
Hollow mist bores faster juxtaposition.
The utility model is further arranged to: the spray orifice on each conical surface is evenly distributed, the spray on the two neighboring conical surface
Hole is staggered.
By using above-mentioned technical proposal, hollow mist cone is evenly distributed, and reduces injection blind area.
The utility model is further arranged to: the conical surface is two, is at the top of a conical surface farthest apart from open end
Plane；The normal of one conical surface and the central axes angle of head body are 45 °, in the normal and head body of another conical surface
Axis angle is 60 °.
By using above-mentioned technical proposal, spray head injection blind area is minimum when practical practical, and effect is best.
The utility model is further arranged to: the head body periphery is equipped with card slot.
By using above-mentioned technical proposal, dust cover can be arranged on card slot, dust cover protects the spray orifice on the different conical surfaces,
The foreign matters such as smog, dust are prevented to enter into spray orifice, in order to avoid influence the output of fine mist spray head.When needing to spray water, high pressure water
It is sprayed into fluid channel and from spray orifice.At this point, dust cover Automatic-falling under hydraulic pressure.
The utility model is further arranged to: the filter screen of dome shape is equipped with inside the head body.
It improves spray head for preventing spray orifice by foreign matters from being blocked such as external dusts by using above-mentioned technical proposal and uses
Environmental diversity.
The utility model is further arranged to: the head body is removably connected with stem, and spray orifice is located on stem.
By using above-mentioned technical proposal, after prolonged use, the scale in water be fixed on spray orifice may cause it is stifled
Plug, can be used tool and removes stem from head body, carry out maintenance replacement to stem, extends entire spray head and uses the longevity
Life.
The utility model is further arranged to: the spray orifice is located at one end of stem, and the other end of stem is detachably connected
There is helicla flute core, helicla flute wicking surface is equipped with the diversion trench being connected to spray orifice.
By using above-mentioned technical proposal, when water from fluid channel along diversion trench to spray orifice flow at high speed when, diversion trench
So that high-velocity flow spiral shape sprays.
The utility model is further arranged to: the head body is equipped with for accommodating stem and being connected to fluid channel
Receiving hole, filter is equipped in receiving hole.
By using above-mentioned technical proposal, filter further prevents impurities in water to enter in spray orifice, and it is stifled to reduce spray orifice
Plug is possible, reduces stem and replaces the frequency.
In conclusion the utility model has the advantages that compared with the prior art
1. being staggered on the multistage conical surface by spray orifice, spraying blind area is effectively reduced；
2. under the same terms, the diameter for spraying same distance water mists is bigger, coverage area is improved；
3. stem can be replaced, extend spray head service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the top view for showing spray orifice arrangement position in Fig. 1；
Fig. 3 be embodiment one show internal structure in Fig. 2 A-A to cross-sectional view；
Fig. 4 is the enlarged drawing that embodiment one highlights jet orifice structure portion B in Fig. 3；
Fig. 5 is the water mist schematic diagram that one spray orifice of embodiment sprays.
Fig. 6 is one mounting structure schematic diagram of embodiment；
Fig. 7 is the structural schematic diagram of embodiment two；
Fig. 8 is the top view for showing stem arrangement position in Fig. 7；
Fig. 9 be embodiment two show internal structure in fig. 8 C-C to cross-sectional view；
Figure 10 is the enlarged drawing that embodiment two highlights stem connection structure portion D in Fig. 9.
Appended drawing reference: 1, head body；11, first conical surface；12, second conical surface；13, spray orifice；14, card slot；15, interior spiral shell
Line；16, mounting groove；17, receiving hole；2, the first filter screen；3, the second filter screen；4, spray head adapter；5, stem；51, screw thread
Hole；6, helicla flute core；61, diversion trench；7, filter.
Specific embodiment
Embodiment one: a kind of fine mist spray head, as depicted in figs. 1 and 2, including head body 1, one end of head body 1
Equipped with first conical surface 11 and second conical surface 12, multiple spray orifices 13 are provided on first conical surface 11 and second conical surface 12.As needed,
Conical surface quantity in head body 1 can also be greater than or equal to three, be equipped with multiple spray orifices 13 on every grade of conical surface.
The other end of head body 1 is prism-shaped or cylindric, in the one end of first conical surface 11 far from second conical surface 12
Periphery is equipped with the card slot 14 of annular, and card slot 14 can be clamped dust cover (not shown), for preventing spray orifice 13 by outside
The foreign matters from being blocked such as dust.Dust cover can be using the production of the light materials such as plastics, and dust cover is integrally in spherical crown shape, or and spray head
The adaptable multi-stage taper of outer profile, all spray orifices 13 can be covered.
Referring to figs. 2 and 3, to 1 internal recess of head body, dust cover is equipped with and the cooperation fixing of card slot 14 card slot 14
Flange, the recessed curvature of card slot 14 and flange profile are adapted.Dust cover has elasticity, so that dust cover is easily by high pressure water
Mist is washed open.
Referring to figs. 2 and 3, the cone-apex angle of first conical surface 11 is λ, and the cone-apex angle of second conical surface 12 is θ, θ > λ.First cone
13 quantity of spray orifice on face 11 is a, and 13 quantity of spray orifice on second conical surface 12 is b.On first conical surface 11 and second conical surface 12
The circumferentially interlaced arrangement of spray orifice 13, preferably to realize that hollow the mutual of mist cone overlaps.
The center line of spray orifice 13 on the same conical surface and the axis of head body 1 intersect at a point.First conical surface 11 and
The 13 center line intersection point interval of spray orifice of two conical surfaces 12 is arranged.
The inner hollow and other end opening of head body 1 form fluid channel, and spray orifice 13 is connected to fluid channel.Fluid
Inner wall of the channel close to open one end is equipped with internal screw thread 15.Fluid channel forms step-like mounting groove close to 14 position of card slot
16。
In actual design, bottom end outline diameter φ=17mm of first conical surface 11, the axial height of first conical surface 11 is
5mm, tip angle λ are 60 °.Top end diameter φ=7mm of second conical surface 12, the axial height of second conical surface 12 are 2mm, tip angle
θ is 90 °.The radius of card slot 14 is 1.4mm, and the recessed depth of card slot 14 is 0.5mm, and card slot 14 falls with first conical surface, 11 junction
Fillet.
Diameter phi=12mm of fluid channel.The quantity of spray orifice 13 is 18 total, and spray orifice 13 is in first conical surface 11 and second
The respectively distribution 9 of the conical surface 12.Angle β=40 ° of two neighboring spray orifice 13 on the same conical surface, the two neighboring spray on the adjacent conical surface
Angle α=20 ° in hole 13.
With reference to Fig. 4, spray orifice 13 is stepped hole, wherein outer bore dia is D, diameter of bore d, D > d.Exit orifice and inner hole it
Between region in be also formed with the transition part of inner chamfer.Compared with the consistent straight hole in traditional aperture, when spray head spurts liquid,
Since the direction of fluid does not change, in the case where holding water mist higher penetration power, high-pressure fluid is swollen by volume twice
It is swollen, it is achieved in secondary-atomizing, enhances atomizing effect.In addition, exit orifice first can be processed with tool in processing step hole,
Then the smaller inner hole in aperture is reprocessed, the machining accuracy of inner hole is improved.
When actual design, exit orifice aperture D=0.8mm, dimensional tolerance 0.02mm, axial length L=0.9mm of exit orifice,
Dimensional tolerance is 0.02mm；Inner hole aperture d=0.25mm, dimensional tolerance 0.015mm.As needed, the aperture of exit orifice can also
To be designed to the arbitrary dimension between 0.7mm-0.8mm；The aperture of inner hole can also be designed to any between 0.25-0.5mm
Size, such as 0.3mm, 0.35mm, 0.44mm, 0.50mm；The axial length of exit orifice can also be designed to appointing between 0.9-1.0mm
Meaning size.
With reference to Fig. 5, which examines relevant parameter under different air and hydraulic condition
Measured data is as follows:
1 fine mist spray head jeting effect detection data of table
As it can be seen from table 1, apart from eject position same distance, being sprayed from the spray orifice of fine mist spray head under identical hydraulic pressure
Water mist diameter be greater than traditional sprinkler heads, coverage area is more preferable.
With reference to Fig. 6, the impurity in water causes spray orifice 13 to block in order to prevent, is equipped with the first filter screen 2 in the fluid passage
With the second filter screen 3, the first filter screen 2 and the second filter screen 3 are located in mounting groove 16.First filter screen 2 and the second filter screen 3
Filter effect can be improved to increase the surface area that fluid passes through using the chondritic of protrusion.Head body 1 is threadedly coupled
There is spray head adapter 4, for connecting with water supply pipe, spray head adapter 4 pushes down the first filter screen 2 and the second filter screen 3 anti-
Only loosen movement.The aperture of second filter screen 3 is slightly larger than the aperture of the first filter screen 2, plays double filtration effect.
The application method of the fine mist spray head is as follows:
In a non-operative state, there is no fluid injection in the fluid channel inside fine mist spray head.Dust cover is set in
It on one conical surface 11 and second conical surface 12 and is stuck in card slot 14, at this point, dust cover protects first conical surface 11 and second conical surface 12
Spray orifice 13 prevents the foreign matters such as smog, dust from entering into spray orifice 13, in order to avoid influence the output of fine mist spray head.
When needing to spray water, high pressure water enters fluid channel, passes through the first filter screen 2 and the second filter screen 3 and from spray orifice
13 spray.At this point, dust cover Automatic-falling under hydraulic pressure.After dust cover falls off, spray orifice 13 sprays water to form water mists.
Since spray orifice 13 is located at the different conical surfaces, the cone-apex angle of the conical surface is gradually increased far from 4 direction of spray head adapter, often
Spray orifice 13 on the grade conical surface will generate hollow mist cone accordingly, and multiple hollow mist cones of the different conical surfaces are advantageously mutually overlapping heavy
It closes, so that the water mist that head body 1 sprays forms a big solid-cone, effectively reduces blind area.
Embodiment two: a kind of fine mist spray head the difference is that, is being sprayed with embodiment one as shown in Figure 7 and Figure 8
Head ontology 1 is removably connected with stem 5, and spray orifice 13 is located on stem 5.
With reference to Fig. 9 and Figure 10, respectively circumferentially arranged with multiple on first conical surface 11 and second conical surface 12 of head body 1
Receiving hole 17, receiving hole 17 are connected to fluid channel, and stem 5 is threadedly coupled with receiving hole 17.
Stem 5 is equipped with threaded hole 51 close to one end of fluid channel, and spray orifice 13 is connected to threaded hole 51.In threaded hole 51
It is threaded with helicla flute core 6.Helicla flute core 6 is cylindrical, and the surface of helicla flute core 6 is equipped with the diversion trench of spiral shape distribution
61 so that spray orifice 13 is connected to fluid channel, and when water from fluid channel along diversion trench 61 to 13 flow at high speed of spray orifice when,
Diversion trench 61 sprays high-velocity flow spiral shape.
In order to further prevent water flow that spray orifice 13 is caused to block, filter is placed in receiving hole 17.
After prolonged use, the scale in water, which is fixed at spray orifice 13, may cause blocking, therefore stem 5 is higher by first
12 1 sections of the conical surface 11 or second conical surface, the part being higher by can be in six prismatics, to use tool by stem 5 from head body
It is removed on 1, maintenance replacement is carried out to stem 5, extend entire spray head service life.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of fine mist spray head, including head body (1), head body (1) inner hollow forms fluid channel, spray head
The open at one end and the other end of ontology (1) are equipped with multiple spray orifices (13) being connected to fluid channel, it is characterised in that: the spray head
Ontology (1) is equipped with the conical surface that at least two cone angles are sequentially increased close to the one end of spray orifice (13)；Multiple spray orifices (13) are in each cone
Uniformly distributed in a ring on face, the central axes of spray orifice (13) axis and head body (1) on the same conical surface intersect at a point, and adjacent two
Upper spray orifice (13) the axis convergent point interval setting of a conical surface.
2. fine mist spray head according to claim 1, it is characterised in that: the spray orifice (13) be stepped hole, stepped hole with
One end aperture of fluid channel connection is 0.25-0.5mm, and other end aperture is 0.7-0.8mm, and the both ends inner hole of stepped hole connects
Place is equipped with the transition part of chamfering.
3. fine mist spray head according to claim 2, it is characterised in that: aperture is the step hole axle of the part 0.7-0.8mm
It is 0.9-1.0mm to length.
4. fine mist spray head according to claim 3, it is characterised in that: the spray orifice (13) on each conical surface is circumferentially equal
Cloth, the spray orifice (13) on the two neighboring conical surface are staggered.
5. fine mist spray head according to claim 4, it is characterised in that: the conical surface is two, farthest apart from open end
A conical surface at the top of be plane；The normal of one conical surface and the central axes angle of head body (1) are 45 °, another conical surface
Normal and the central axes angle of head body (1) be 60 °.
6. fine mist spray head according to claim 1, it is characterised in that: head body (1) periphery is equipped with card slot
(14)。
7. fine mist spray head according to claim 1, it is characterised in that: be equipped with dome shape inside the head body (1)
Filter screen.
8. fine mist spray head according to claim 1, it is characterised in that: the head body (1) is removably connected with core
Column (5), spray orifice (13) are located on stem (5).
9. fine mist spray head according to claim 8, it is characterised in that: the spray orifice (13) is located at one end of stem (5),
The other end of stem (5) is removably connected with helicla flute core (6), and helicla flute core (6) surface is equipped with and leads with what spray orifice (13) was connected to
Chute (61).
10. fine mist spray head according to claim 9, it is characterised in that: the head body (1) is equipped with for accommodating
Stem (5) and the receiving hole (17) being connected to fluid channel are equipped with filter (7) in receiving hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717354.8U CN209108502U (en) | 2018-10-22 | 2018-10-22 | Fine mist spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717354.8U CN209108502U (en) | 2018-10-22 | 2018-10-22 | Fine mist spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209108502U true CN209108502U (en) | 2019-07-16 |
Family
ID=67201955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821717354.8U Active CN209108502U (en) | 2018-10-22 | 2018-10-22 | Fine mist spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209108502U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671764A (en) * | 2019-09-10 | 2020-01-10 | 刘岁 | Air conditioning unit integrating spraying function |
| CN110686339A (en) * | 2019-09-10 | 2020-01-14 | 刘岁 | Water chilling unit integrating spraying function |
| CN111409974A (en) * | 2020-04-09 | 2020-07-14 | 浙江省人民医院 | Garbage bin bung hole encircles disinfection spray set |
| CN111468319A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Multi-jet-hole gas-liquid two-phase atomizing nozzle |
-
2018
- 2018-10-22 CN CN201821717354.8U patent/CN209108502U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671764A (en) * | 2019-09-10 | 2020-01-10 | 刘岁 | Air conditioning unit integrating spraying function |
| CN110686339A (en) * | 2019-09-10 | 2020-01-14 | 刘岁 | Water chilling unit integrating spraying function |
| CN110671764B (en) * | 2019-09-10 | 2021-09-21 | 刘岁 | Air conditioning unit integrating spraying function |
| CN110686339B (en) * | 2019-09-10 | 2021-09-21 | 刘岁 | Water chilling unit integrating spraying function |
| CN111468319A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Multi-jet-hole gas-liquid two-phase atomizing nozzle |
| CN111409974A (en) * | 2020-04-09 | 2020-07-14 | 浙江省人民医院 | Garbage bin bung hole encircles disinfection spray set |
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