CN208895908U - A kind of nozzle and spray head - Google Patents
A kind of nozzle and spray head Download PDFInfo
- Publication number
- CN208895908U CN208895908U CN201821475529.9U CN201821475529U CN208895908U CN 208895908 U CN208895908 U CN 208895908U CN 201821475529 U CN201821475529 U CN 201821475529U CN 208895908 U CN208895908 U CN 208895908U
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- China
- Prior art keywords
- area
- nozzle
- abrasive material
- sha
- spray chamber
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- 239000007921 spray Substances 0.000 title claims abstract description 60
- 239000003082 abrasive agent Substances 0.000 claims abstract description 35
- 239000004576 sand Substances 0.000 claims description 10
- 230000004323 axial length Effects 0.000 claims description 7
- 238000005488 sandblasting Methods 0.000 abstract description 14
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 229910003460 diamond Inorganic materials 0.000 description 10
- 239000010432 diamond Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 239000006061 abrasive grain Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000013475 authorization Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model relates to sand-blasting machine fields, specifically a kind of nozzle and spray head, sand-blasting machine nozzle arrangements provided by the utility model, using the area Ru Sha of hyperboloid structure, abrasive material be can reduce to the erosion angle in the area Ru Sha, and reduces erosion of the abrasive material to the area Ru Sha end nozzle body, improve the service life of nozzle；The area that shakes out uses frustum cone structure, so that forming the flaring structure that size is gradually increased in spray chamber, can reduce abrasive material in impact of the area to side wall of shaking out, kinetic energy can will be converted to greatest extent in abrasive material, so that forming long and narrow high-speed jet after abrasive material leaves spray chamber；By adding air inlet on the side wall in the area that shakes out, secondary ftercompction can be carried out to spray chamber in sandblasting procedures, to increase wind pressure and air velocity in nozzle, and then secondary speed-raising be carried out to abrasive material, sandblasting efficiency can be significantly improved.
Description
Technical field
The utility model relates to sand-blasting machine field, specifically a kind of nozzle and spray head.
Background technique
Sandblasting is that abrasive material is sucked spray gun by pipeline and is projected through nozzle, by means of abrasive material using compressed air as power
Impact and shear action to workpiece surface make the surface of workpiece obtain certain cleannes and different roughness, make workpiece
The mechanical performance on surface is improved.Nozzle arrangements difference will lead to the difference of the service life of processing efficiency and nozzle, existing
The structure of common nozzle has following two in technology: one of which is shrinkage type structure, i.e. front end is coniform, is then gradually received
Shorten into it is cylindric, as shown in Figure 1；Another kind is flaring structure, if Authorization Notice No. is in the patent document of CN206316940U
Sand-blasting machine hyperbola nozzle hyperbola spout, include air inlet, sand inlet and hyperbola provided by the patent document
The hyperbola nozzle of the sand-blasting machine of spout is usually said spray head, and hyperbola spout therein is usually said nozzle.This
There is the growth with spray chamber in the nozzle of two kinds of structures, wind pressure gradually decreases, and air velocity reduces, and suspended particulate first occurs non-
Even suspension flows, and then the flow regime of density unevenness occurs, i.e. air-flow wild effect of the abrasive material in nozzle, works as air-flow
When speed is less than a certain numerical value, there have been TRANSFER BY PULSATING FLOW states, as air velocity further decreases, a part of material particles
It will be stuck in the bottom of pipeline, another part is then slided and travelled forward, and then the material bed of stagnation is made to make unstable movement, most
Blocking is formed afterwards, leads to operational failure.
To solve the air-flow shakiness phenomenon that abrasive material occurs in nozzle, the China that Authorization Notice No. is CN202846377 is specially
Sharp document discloses a kind of ceramic sand jet, is improved the structure of nozzle, using the entrance and cone of hyperboloid structure
The outlet section in face, for reducing erosive wear of the abrasive material to blast nozzle, i.e., by reducing pressure loss so that abrasive material is in nozzle
Stable gas pressure, but ceramic sand jet provided in the patent document are kept, gas of the abrasive material in nozzle still can not be thoroughly solved
It flows unstable problem, especially abrasive material and moves one end in blast nozzle after or when moving to outlet section, still will appear
Because wind pressure reduction causes abrasive grain TRANSFER BY PULSATING FLOW state occur.
Utility model content
The utility model provides a kind of nozzle and spray head, occurs in the movement of spray chamber to solve abrasive material in the prior art
The unstable problem of air-flow.
The nozzle for sand-blasting machine of the utility model adopts the following technical scheme that a kind of nozzle, including nozzle body, institute
It states and is equipped with spray chamber in nozzle body, one end of the spray chamber is the area Ru Sha of hyperboloid structure, and the other end is going out for pyramidal structure
Sand area, the side wall in the area that shakes out are equipped with the air inlet for carrying out secondary ftercompction to spray chamber.
Further, the air inlet is 2~4, and is uniformly circumferentially distributed on the side wall in the area that shakes out.
Further, the compression for being compressed to the abrasive material in spray chamber is equipped between the area Ru Sha and the area that shakes out
Area.
Further, the compressional zone is cylindrical structure.
Further, the axial length ratio in the area Ru Sha of the nozzle, compressional zone, the area that shakes out are as follows: 1:(0.5~0.8):
(2.5~3).
The spray head of the utility model adopts the following technical scheme that a kind of spray head, the spray head include air inlet, sand inlet and
Nozzle, the nozzle include nozzle body, and spray chamber is equipped in nozzle body, and one end of the spray chamber enters sand for hyperboloid structure
Area, the other end are the area that shakes out of pyramidal structure, the side wall in the area that shakes out be equipped with for spray chamber carry out secondary ftercompction into
Air port.
Further, the air inlet is 2~4, and is uniformly circumferentially distributed on the side wall in the area that shakes out.
Further, the compression for being compressed to the abrasive material in spray chamber is equipped between the area Ru Sha and the area that shakes out
Area.
Further, the compressional zone is cylindrical structure.
Further, the axial length ratio in the area Ru Sha of the nozzle, compressional zone, the area that shakes out are as follows: 1:(0.5~0.8):
(2.5~3).
The beneficial effects of the utility model are:
Nozzle provided by the utility model can reduce abrasive material to the area Ru Sha using the area Ru Sha of hyperboloid structure
Erosion angle, and reduce erosion of the abrasive material to the area Ru Sha end nozzle body, improve the service life of nozzle；Shake out area use
Frustum cone structure can reduce abrasive material in impact of the area to side wall of shaking out so that form the flaring structure that is gradually increased of size in spray chamber,
Kinetic energy can will be converted to greatest extent in abrasive material, so that forming long and narrow high-speed jet after abrasive material leaves spray chamber；By
Shake out area side wall on add air inlet, secondary ftercompction can be carried out to spray chamber in sandblasting procedures, with increase in nozzle wind pressure and
Air velocity, and then secondary speed-raising is carried out to abrasive material, sandblasting efficiency can be significantly improved.
On the other hand, the nozzle in the utility model, is equipped with one section of compressional zone between the area Ru Sha and the area that shakes out, abrasive material is from spray
It after the pressure obtained in sand machine, is further compressed in compressional zone, and then abrasive grain is made to form the consistent pencil of the direction of motion
Abrasive material is simultaneously projected from the area that shakes out.
Spray head provided by the utility model, by being improved to nozzle therein, the wind pressure being capable of increasing in nozzle
And air velocity, sandblasting efficiency is effectively improved, has the advantages that at low cost, easy popularization, long service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the nozzle of shrinkage type structure in the prior art；
Fig. 2 is the structural schematic diagram of the specific embodiment of the nozzle of the utility model；
Appended drawing reference:
The area 1: Ru Sha；2: compressional zone；3: shake out area；3A: air inlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
The embodiment of the nozzle of the utility model is set in nozzle body as shown in Fig. 2, a kind of nozzle, including nozzle body
There is spray chamber, one end of the spray chamber is the area Ru Sha of hyperboloid structure, and the other end is the area 3 that shakes out of pyramidal structure, and shake out area 3
Side wall is equipped with the air inlet 3A for carrying out secondary ftercompction to spray chamber, and air inlet 3A is arranged on the side wall in the area 3 that shakes out, and improves
It shakes out the pressure in area 3, abrasive material can be made to form long and narrow high-speed jet far from the side wall in the area 3 that shakes out, leave spray chamber.
Further, in this embodiment air inlet 3A is 2~4, uniformly it is circumferentially distributed on the side wall in the area 3 that shakes out,
To shaking out, area 3 carries out uniform ftercompction.
Further, in this embodiment being equipped between the area Ru Sha 1 and the area 3 that shakes out for being compressed to the abrasive material in spray chamber
Compressional zone 2, compressional zone 2 is cylindrical structure in the present embodiment, cylindrical structure have the characteristics that it is easy to process, simple and easy,
Abrasive grain can be made to form the consistent pencil of the direction of motion simultaneously and projected from the area that shakes out.
Further, in this embodiment the material of nozzle arrangements is polycrystalline diamond, polycrystalline diamond is micro- by diamond
Super-hard compound material made of powder and a small amount of binder be sintereds under high-temperature and high-pressure conditions, it is with high rigidity, high-wearing feature, good
Good toughness.Do that nozzle hardness made of core is high, wearability is good using this material, the service life is the 5 of ceramic nozzle
~10 times, be 50~100 times of carboloy nozzle, can greatly improve the service life of nozzle, reduces the trouble of replacement nozzle.
Further, in this embodiment the area Ru Sha 1, compressional zone 2, shake out the trizonal axial length ratio in area 3 are as follows: 1:
(0.5~0.8): when (2.5~3), there is more preferably sandblasting efficiency.When being worked, by the efficient plycrystalline diamond of the utility model
Diamond nozzle is mounted on spray gun, and under the action of compressed air, abrasive material formation high velocity spray beam is ejected into workpiece surface,
Impact and shear action by means of abrasive material to workpiece surface make workpiece surface obtain certain cleannes and different roughness
Or the mechanical performance of workpiece surface is improved.
Embodiment two:
The embodiment of the spray head of the utility model, a kind of spray head, spray head include air inlet, sand inlet and nozzle, including spray
Mouth ontology, nozzle body is interior to be equipped with spray chamber, and one end of the spray chamber is the area Ru Sha of hyperboloid structure, and the other end is pyramidal structure
The area 3 that shakes out, the side wall in the area 3 that shakes out is equipped with the air inlet 3A for carrying out secondary ftercompction to spray chamber, in the side wall in area 3 that shakes out
Upper setting air inlet 3A can make abrasive material form long and narrow high-speed jet far from the side wall in the area 3 that shakes out, leave spray chamber.
Further, in this embodiment air inlet 3A is 2~4, uniformly it is circumferentially distributed on the side wall in the area 3 that shakes out,
To shaking out, area 3 carries out uniform ftercompction.
Further, in this embodiment being equipped between the area Ru Sha 1 and the area 3 that shakes out for being compressed to the abrasive material in spray chamber
Compressional zone 2, compressional zone 2 is cylindrical structure in the present embodiment, cylindrical structure have the characteristics that it is easy to process, simple and easy,
Abrasive grain can be made to form the consistent pencil of the direction of motion simultaneously and projected from the area that shakes out.
Further, in this embodiment the material of nozzle arrangements is polycrystalline diamond, polycrystalline diamond is micro- by diamond
Super-hard compound material made of powder and a small amount of binder be sintereds under high-temperature and high-pressure conditions, it is with high rigidity, high-wearing feature, good
Good toughness.Do that nozzle hardness made of core is high, wearability is good using this material, the service life is the 5 of ceramic nozzle
~10 times, be 50~100 times of carboloy nozzle, can greatly improve the service life of nozzle, reduces the trouble of replacement nozzle.
Further, in this embodiment the area Ru Sha 1, compressional zone 2, shake out the trizonal axial length ratio in area 3 are as follows: 1:
(0.5~0.8): when (2.5~3), there is more preferably sandblasting efficiency.When being worked, by the efficient plycrystalline diamond of the utility model
Diamond nozzle is mounted on spray gun, and under the action of compressed air, abrasive material formation high velocity spray beam is ejected into workpiece surface,
Impact and shear action by means of abrasive material to workpiece surface make workpiece surface obtain certain cleannes and different roughness
Or the mechanical performance of workpiece surface is improved.
It should be noted that the quantity of air inlet can be 3 or 4 in the other embodiments of the utility model, also
It can be 5 air inlets being uniformly distributed circumferentially on the side wall for shaking out area；The area Ru Sha, compressional zone, shake out three, area region
Axial length ratio are as follows: its specific ratio can be 1:0.5:2.5, is also possible to 1:0.8:3, can also be 1:0.9:2；Enter sand
Transition connection can be carried out using shiny surface between area and the area that shakes out, be also possible to be connected using the compressional zone of pyramidal structure
It connects.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of nozzle, including nozzle body, the nozzle body is interior to be equipped with spray chamber, and one end of the spray chamber is hyperboloid structure
The area Ru Sha, the other end be pyramidal structure the area that shakes out, it is characterised in that: the side wall in the area that shakes out be equipped with for spray chamber
Carry out the air inlet of secondary ftercompction.
2. nozzle according to claim 1, it is characterised in that: the air inlet is 2~4, and uniformly circumferentially distributed
On the side wall for shaking out area.
3. nozzle according to claim 1, it is characterised in that: be equipped between the area Ru Sha and the area that shakes out for spray chamber
The compressional zone that interior abrasive material is compressed.
4. nozzle according to claim 3, it is characterised in that: the compressional zone is cylindrical structure.
5. nozzle according to claim 3 or 4, it is characterised in that: the area Ru Sha of the nozzle, compressional zone, shake out area
Axial length ratio are as follows: 1:(0.5~0.8): (2.5~3).
6. a kind of spray head, the spray head includes air inlet, sand inlet and nozzle, and the nozzle includes nozzle body, nozzle body
Interior to be equipped with spray chamber, one end of the spray chamber is the area Ru Sha of hyperboloid structure, and the other end is the area that shakes out of pyramidal structure, feature
Be: the side wall in the area that shakes out is equipped with the air inlet for carrying out secondary ftercompction to spray chamber.
7. spray head according to claim 6, it is characterised in that: the air inlet is 2~4, and uniformly circumferentially distributed
On the side wall for shaking out area.
8. spray head according to claim 6, it is characterised in that: be equipped between the area Ru Sha and the area that shakes out for spray chamber
The compressional zone that interior abrasive material is compressed.
9. spray head according to claim 8, it is characterised in that: the compressional zone is cylindrical structure.
10. spray head according to claim 8 or claim 9, it is characterised in that: the area Ru Sha of the nozzle, compressional zone, shake out area
Axial length ratio are as follows: 1:(0.5~0.8): (2.5~3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475529.9U CN208895908U (en) | 2018-09-10 | 2018-09-10 | A kind of nozzle and spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475529.9U CN208895908U (en) | 2018-09-10 | 2018-09-10 | A kind of nozzle and spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208895908U true CN208895908U (en) | 2019-05-24 |
Family
ID=66571801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475529.9U Expired - Fee Related CN208895908U (en) | 2018-09-10 | 2018-09-10 | A kind of nozzle and spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208895908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310686A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Nozzle and manufacturing method thereof |
-
2018
- 2018-09-10 CN CN201821475529.9U patent/CN208895908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310686A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Nozzle and manufacturing method thereof |
| CN114310686B (en) * | 2020-09-30 | 2023-11-28 | 中国石油天然气股份有限公司 | Nozzle and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 |