CN206682055U - Circumferential weld injector - Google Patents
Circumferential weld injector Download PDFInfo
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- CN206682055U CN206682055U CN201720442501.4U CN201720442501U CN206682055U CN 206682055 U CN206682055 U CN 206682055U CN 201720442501 U CN201720442501 U CN 201720442501U CN 206682055 U CN206682055 U CN 206682055U
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Abstract
It the utility model is related to gas gas injection device, the circumferential weld injector that specifically a kind of induction efficiency is high, small volume is easily installed.Including injector main body, injector body interior is respectively arranged with suction chamber body, diffuser cavity, ring-type Laval nozzle, ring-like gas chamber, ring-like gas chamber is connected by ring-type Laval nozzle with suction chamber body, suction chamber body is connected with diffuser cavity, and the ejection gas air admission hole of connection ring-like gas chamber is provided with injector main body.Laval nozzle entrance of the present utility model is tapered annular, export the annular for flaring, by the high velocity air of annular Laval nozzle in annular shape, vacuum environment is formed in the center section of annular outlet, is pumped into from centre by ejection gas and is mixed with ejection gas, then mixed gas is discharged through diffuser cavity, the suction capactity of this circumferential weld injector is very strong, it is more efficient, the minimum reachable 98KPa of pressure of smokable gas, while volume is smaller is easily installed.
Description
Technical field
It the utility model is related to gas gas injection device, the circumferential weld that specifically a kind of induction efficiency is high, small volume is easily installed
Injector.
Background technology
In vacuum equipment field, there is a kind of gas gas injection device, container can be evacuated by it, and and can is taken out as one kind
Sucking pump uses, and gas is conveyed, the composition of general gas gas injection device is made up of two parts：Laval nozzle and diffuser,
Laval nozzle is to accelerate to ejection gas more than velocity of sound, makes to form vacuum environment around Laval nozzle outlet, by Bearing score
Come around your jet expansion by ejection gas suction, the function of diffuser is pressurized by injection and by the mixed gas of injection
And injector is discharged, and so as to realize suction by the function of ejection gas, the Lavalle spray that present gas gas injection device generally uses
Mouth is that entrance is tapered horn mouth, and aditus laryngis is shorter cylinder, is exported as gradually expanded form horn mouth.The high speed gas that it sprays
Body is generally gradually expanded form cylinder stream.Gradually expanded form high speed cylinder stream surrounding forms vacuum environment, and peripheral gas injection is come in, and enters
Discharged after diffuser boosting, this injector induction efficiency is relatively low, and the assembly of Laval nozzle and diffuser is sufficiently bulky, peace
Assembly and disassembly are very inconvenient.
Utility model content
The utility model aims to solve the problem that above mentioned problem, so as to the ring for providing a kind of induction efficiency height, small volume is easily installed
Stitch injector.
The utility model solves described problem, and the technical scheme of use is：
A kind of circumferential weld injector, including injector main body, injector body interior are respectively arranged with suction chamber body, diffusion
Device cavity, ring-type Laval nozzle, ring-like gas chamber, ring-like gas chamber are connected with suction chamber body by ring-type Laval nozzle, inhaled
Cavity of entering the room is connected with diffuser cavity, and the ejection gas air admission hole of connection ring-like gas chamber is provided with injector main body.
Using the utility model of above-mentioned technical proposal, compared with prior art, the characteristics of it is protruded, is：
Ring-type Laval nozzle entrance is tapered annular, the annular for flaring is exported, by annular Laval nozzle
High velocity air in annular shape, annular outlet center section formed vacuum environment, be sucked by ejection gas from centre
Come in mix with ejection gas, then mixed gas is discharged through diffuser cavity, the suction capactity of this circumferential weld injector is very strong, effect
Rate is higher, the minimum reachable -98KPa of pressure of smokable gas, while volume is smaller is easily installed.
Preferably, the further technical scheme of the utility model is：
Injector main body includes front body, rear body, front body and rear body by adjusting flange and bolt connection, rear portion
The endoporus of front body is stretched into the front end of body and front body collectively forms ring-like gas chamber and ring-type Laval nozzle, the endoporus of front body
The part connected with the endoporus of rear body forms suction chamber body, and the endoporus of rear body forms diffuser cavity, and ejection gas enters
Stomata is arranged in front body.
The aditus laryngis width of ring-type Laval nozzle can by adjust in front body and rear body adjustment flange between
Gap adjusts, and the aditus laryngis width of the ring-type Laval nozzle of circumferential weld injector is adjustable, and the pressure limit of ejection gas is wider, and realization is taken out
Inhale the gas function of different pressures.
Injection gas entrance pipe, the end set of injection gas entrance pipe are provided with the ejection gas air admission hole of front body
There is ejection gas adpting flange, the ejection gas of injection gas entrance pipe and ejection gas adpting flange composition circumferential weld injector enters
Enter part, be the path that ejection gas enters injector ring-like gas chamber.
Annular seal ring is provided with the front end of rear body and the inner hole of front body, annular seal ring plays sealing and made
With.
It is blue that outer connection is respectively arranged with front body and the opposite other end of rear body, for being connected with exterior line.
Angle between the air inlet and front body of ring-type Laval nozzle is 10-30 degree, and ring-type Laval nozzle enters
Angle between air port and the front end of rear body is 45-65 degree；The air outlet of ring-type Laval nozzle and the front end of rear body it
Between angle be 10-25 degree；Length is 5-25 millimeters on front side of the aditus laryngis of ring-type Laval nozzle, the aditus laryngis of ring-type Laval nozzle
Rear side length is 0.3-5 millimeters, can according to ejection gas and by ejection gas pressure, ring-type Laval nozzle reasonable in design
Exit angle, outlet length, so that induction efficiency reaches highest.
Angle between the air inlet and front body of ring-type Laval nozzle is 10-30 degree, and ring-type Laval nozzle enters
Angle between air port and the front end of rear body is 45-65 degree；Folder between the air outlet and front body of ring-type Laval nozzle
Angle is 0-5 degree；Angle between the air outlet of ring-type Laval nozzle and the front end of rear body is 10-25 degree；Ring-type Lavalle
On front side of the aditus laryngis of nozzle and rear side length is 0.3-5 millimeters, can be reasonable in design according to ejection gas and by ejection gas pressure
Ring-type Laval nozzle exit angle, outlet length so that induction efficiency reaches highest.
Chamber body is sucked in tubular structure is shunk, the air intake vent of diffuser cavity is in contraction tubular structure, diffuser cavity
Air outlet in expansion tubular structure.
Sucking chamber body includes the first contraction conical surface and the second contraction conical surface, and the first converging angles for shrinking the conical surface are 40-
50 degree, the second converging angles for shrinking the conical surface are 15-35 degree；Diffuser cavity include the 3rd shrink the conical surface, the 4th shrink the conical surface,
The first expansion conical surface, the second expansion conical surface, the converging angles of the 3rd contraction conical surface are 40-55 degree, and the 4th shrinks the contraction of the conical surface
Angle is 15-35 degree, and the expansion angle of the first expansion conical surface is 3-8 degree, and the expansion angle of the second expansion conical surface is 5-15 degree.
Brief description of the drawings
Fig. 1 is the utility model embodiment structural representation；
Fig. 2 is the partial enlargement structural representation of the utility model embodiment；
In figure：Ejection gas air admission hole 1；Ring-like gas chamber 2；Annular seal ring 3；Ring-type Laval nozzle 4；Bolt 5；Suction
Chamber body 6；Diffuser cavity 7；Adjust flange 8；Injection gas entrance pipe 9；Outer connection orchid 10；Ejection gas adpting flange 11；
Front body 12；Rear body 13；First shrinks the conical surface 14；Second shrinks the conical surface 15；3rd shrinks the conical surface 16；4th shrinks the conical surface
17；The first expansion conical surface 18；The second expansion conical surface 19；First shrinks the converging angles A of the conical surface；Second shrinks the angle of throat of the conical surface
Spend B；Angle C between the air outlet of ring-type Laval nozzle and the front end of rear body；3rd shrinks the converging angles D of the conical surface；
4th shrinks the converging angles E of the conical surface；Angle F between the air inlet and front body of ring-type Laval nozzle；Ring-type Lavalle
Angle G between the air inlet of nozzle and the front end of rear body；The expansion angle H of the first expansion conical surface；The second expansion conical surface
Expansion angle I；Length L1 on front side of the aditus laryngis of ring-type Laval nozzle；Length L2 on rear side of the aditus laryngis of ring-type Laval nozzle.
Embodiment：
With reference to embodiment, the utility model is described in further detail, and purpose, which is only that, more fully understands the utility model
Content, therefore, the cited case are not intended to limit the scope of protection of the utility model.
Referring to Fig. 1, injector main body, injector main body includes front body 12 and rear body 13, front body 12 and rear body
An adjustment flange 8 is respectively arranged with 13, two adjustment flanges 8 are connected by bolt 5, and then by front body 12 and rear body
13 connect as one composition injector main body, and the front end of rear body 13 stretches into the endoporus of front body 12 and front body 12 collectively forms
Ring-like gas chamber 2 and ring-type Laval nozzle 4, the front end of rear body 13 at the inner hole of front body 12 with being provided with annular seal
Circle 3 is sealed, and the joint gap of two adjustment flanges 8 can be adjusted, so as to reach adjustment ring-type Laval nozzle 4
The purpose of aditus laryngis width, and then induction efficiency is reached highest, the adjusting range of the aditus laryngis width of ring-type Laval nozzle 4 is
0.1-5 millimeters, the endoporus of rear body 13 form diffuser cavity 7, the part that the endoporus of front body 12 connects with diffuser cavity 7
Composition suction chamber body 6, suction chamber body 6 are in shrink tubular structure in tubular structure, the air intake vent of diffuser cavity 7 is shunk,
The air outlet of diffuser cavity 7 is connected in expansion tubular structure, ring-like gas chamber 2 by ring-type Laval nozzle 4 and suction chamber body 6
It is logical, it is blue that an outer connection for being used to be connected with exterior line is also respectively provided with the 13 opposite other end of front body 12 and rear body
10, the ejection gas air admission holes 1 of two connection ring-like gas chambers 2 are provided with front body 12 and are provided with two injection gas inlet tubes
Road 9, the end set of each injection gas entrance pipe 9 have ejection gas adpting flange 11, injection gas entrance pipe 9 and injection gas
Body adpting flange 11 forms the ejection gas entering part of circumferential weld injector, is that two-way ejection gas enters injector ring-like gas chamber
2 path, the both ends of injection gas entrance pipe 9 are connected with ejection gas air admission hole 1 and ejection gas respectively using welding manner
Flange 11 connects.
Sucking chamber body 6 includes the first contraction contraction conical surface 15 of the conical surface 14 and second, and first shrinks the converging angles A of the conical surface
For 40-50 degree, the second angle of throat B degree for shrinking the conical surface is 15-35 degree；Diffuser cavity 7 includes the 3rd and shrinks the conical surface the 16, the 4th
Shrinking the conical surface 17, first and expand the expansion conical surface 19 of the conical surface 18, second, the 3rd converging angles D for shrinking the conical surface is 40-55 degree, the
The converging angles E of the four contraction conical surfaces is 15-35 degree, and the expansion angle H of the first expansion conical surface is 3-8 degree, the second expansion conical surface
Expansion angle I is 5-15 degree.
Angle F between the air inlet and front body of ring-type Laval nozzle is 10-30 degree, and ring-type Laval nozzle enters
Angle G between air port and the front end of rear body is 45-65 degree, the air outlet of ring-type Laval nozzle and the front end of rear body it
Between angle C be 10-25 degree, without angle or have angle between the air outlet and front body of ring-type Laval nozzle；During without angle,
Length L1 is 5-25 millimeters on front side of the aditus laryngis of ring-type Laval nozzle, and the aditus laryngis rear side length L2 of ring-type Laval nozzle is 0.3-
5 millimeters；When having angle, the angle between the air outlet and front body of ring-type Laval nozzle is 0-5 degree, ring-type Laval nozzle
Aditus laryngis on front side of length L1 and ring-type Laval nozzle aditus laryngis on rear side of length L2 be 0.3-5 millimeters.
The circumferential weld injector course of work is as follows：Ejection gas adpting flange of the ejection gas from ejection gas entering part
11 and injection gas entrance pipe 9 enter, then by front body 12 ejection gas air admission hole 1 enter by front body 12 and rear portion
The ring-like gas chamber 2 that body 13 connects and composes, the ring-type Laval nozzle 4 that then warp is connected with ring-like gas chamber 2 sprays at a high speed, in ring
Vacuum environment is formed at the suction chamber body 6 in the exit of shape Laval nozzle 4, will be brought into suction chamber body 6 by ejection gas, then
Boosting discharge circumferential weld injector is together mixed with ejection gas through diffuser cavity 7, completes the function of intake-gas, ring-type Bearing score
Your nozzle 4 is to accelerate to ejection gas more than velocity of sound, makes to form vacuum environment around the outlet of ring-type Laval nozzle 4, by ring
Come around the outlet of shape Laval nozzle 4 by ejection gas suction, the function of diffuser cavity 7 is by injection and by injection
Mixed gas is pressurized and discharges circumferential weld injector, so as to realize suction by the function of ejection gas.
Energy used in the utility model is that gases at high pressure spray high speed kinetic energy caused by 4 mouths, ring-type by ring-type Lavalle
The entrance of Laval nozzle 4 is tapered annular, the annular for flaring is exported, by the high velocity air of ring-type Laval nozzle 4
In annular shape, vacuum environment is formed in the center section of the annular outlets of ring-type Laval nozzle 4, by ejection gas from middle quilt
Suction comes in mix with ejection gas, then discharges mixed gas through diffuser cavity 7, and the suction capactity of this circumferential weld injector is very
By force, it is more efficient, the minimum reachable -98KPa of pressure of smokable gas, ejection gas used can be steam, compressed air,
High pressure nitrogen etc., the pressure of ejection gas are higher than by ejection gas, while volume is smaller is easily installed, circumferential weld injector
The aditus laryngis width of ring-type Laval nozzle 4 is adjustable, and the pressure limit of ejection gas is wider, also, by adjusting circumferential weld injector
Ring-type Laval nozzle 4 aditus laryngis width, realize suction different pressures gas function, can be according to ejection gas and by injection
Gas pressure, the exit angle of ring-type Laval nozzle 4 reasonable in design, outlet length, so that induction efficiency reaches highest.
The preferably feasible embodiment of the utility model is the foregoing is only, not thereby limits to power of the present utility model
Sharp scope, all equivalence changes made with the utility model specification and its accompanying drawing content, is both contained in of the present utility model
Within interest field.
Claims (10)
1. a kind of circumferential weld injector, including injector main body, it is characterised in that：Injector body interior is respectively arranged with suction room
Cavity, diffuser cavity, ring-type Laval nozzle, ring-like gas chamber, ring-like gas chamber pass through ring-type Laval nozzle and suction chamber
Body connects, and suction chamber body connects with diffuser cavity, and the ejection gas that connection ring-like gas chamber is provided with injector main body enters
Stomata.
2. circumferential weld injector according to claim 1, it is characterised in that：Injector main body includes front body, rear body, preceding
Portion's body and rear body stretch into the endoporus and the common structure of front body of front body by adjusting flange and bolt connection, the front end of rear body
Circlewise air chamber and ring-type Laval nozzle, the part that the endoporus of front body connects with the endoporus of rear body form suction chamber
Body, the endoporus of rear body form diffuser cavity, and ejection gas air admission hole is arranged in front body.
3. circumferential weld injector according to claim 2, it is characterised in that：The aditus laryngis width of ring-type Laval nozzle can pass through
The gap adjusted between the adjustment flange in front body and rear body adjusts.
4. circumferential weld injector according to claim 2, it is characterised in that：It is provided with the ejection gas air admission hole of front body
Injection gas entrance pipe, the end set of injection gas entrance pipe have ejection gas adpting flange.
5. circumferential weld injector according to claim 2, it is characterised in that：The front end of rear body and the inner hole of front body
Place is provided with annular seal ring.
6. circumferential weld injector according to claim 2, it is characterised in that：In front body and the opposite other end of rear body respectively
It is blue to be provided with outer connection.
7. circumferential weld injector according to claim 2, it is characterised in that：The air inlet and front body of ring-type Laval nozzle
Between angle be 10-30 degree, the angle between the air inlet of ring-type Laval nozzle and the front end of rear body is 45-65 degree；
Angle between the air outlet of ring-type Laval nozzle and the front end of rear body is 10-25 degree；The aditus laryngis of ring-type Laval nozzle
Front side length is 5-25 millimeters, and the aditus laryngis rear side length of ring-type Laval nozzle is 0.3-5 millimeters.
8. circumferential weld injector according to claim 2, it is characterised in that：The air inlet and front body of ring-type Laval nozzle
Between angle be 10-30 degree, the angle between the air inlet of ring-type Laval nozzle and the front end of rear body is 45-65 degree；
Angle between the air outlet and front body of ring-type Laval nozzle is 0-5 degree；The air outlet of ring-type Laval nozzle and rear portion
Angle between the front end of body is 10-25 degree；On front side of the aditus laryngis of ring-type Laval nozzle and rear side length is 0.3-5 millimeters.
9. circumferential weld injector according to claim 2, it is characterised in that：Chamber body is sucked in contraction tubular structure, diffusion
The air intake vent of device cavity is in tubular structure is shunk, and the air outlet of diffuser cavity is in expansion tubular structure.
10. circumferential weld injector according to claim 9, it is characterised in that：Suck chamber body include first shrink the conical surface and
Second shrinks the conical surface, and the converging angles of the first contraction conical surface are 40-50 degree, and the second converging angles for shrinking the conical surface are 15-35 degree；
Diffuser cavity includes the 3rd and shrinks the conical surface, the 4th contraction conical surface, the first expansion conical surface, the second expansion conical surface, and the 3rd shrinks cone
The converging angles in face are 40-55 degree, and the converging angles of the 4th contraction conical surface are 15-35 degree, and first expands the expansion angle of the conical surface
For 3-8 degree, the expansion angle of the second expansion conical surface is 5-15 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720442501.4U CN206682055U (en) | 2017-04-25 | 2017-04-25 | Circumferential weld injector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720442501.4U CN206682055U (en) | 2017-04-25 | 2017-04-25 | Circumferential weld injector |
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| Publication Number | Publication Date |
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| CN206682055U true CN206682055U (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720442501.4U Active CN206682055U (en) | 2017-04-25 | 2017-04-25 | Circumferential weld injector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044454A (en) * | 2017-04-25 | 2017-08-15 | 河北恒德环保科技有限公司 | Circumferential weld injector |
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2017
- 2017-04-25 CN CN201720442501.4U patent/CN206682055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044454A (en) * | 2017-04-25 | 2017-08-15 | 河北恒德环保科技有限公司 | Circumferential weld injector |
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