CN219654993U - Injection unit and combined injection device - Google Patents
Injection unit and combined injection device Download PDFInfo
- Publication number
- CN219654993U CN219654993U CN202320788958.6U CN202320788958U CN219654993U CN 219654993 U CN219654993 U CN 219654993U CN 202320788958 U CN202320788958 U CN 202320788958U CN 219654993 U CN219654993 U CN 219654993U
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- shell
- outer cylinder
- air inlet
- cavity
- inner cylinder
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- 238000002347 injection Methods 0.000 title claims abstract description 68
- 239000007924 injection Substances 0.000 title claims abstract description 68
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003595 mist Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an injection unit and a combined injection device, wherein the injection unit comprises the following structure: the front end of the outer cylinder is provided with an air inlet cavity, and the outer wall of the middle cavity section is provided with an air inlet; the inner cylinder is provided with a gradually-expanding inner cavity structure, the inner cylinder is coaxial and communicated with the cavity of the outer cylinder, a gap is arranged between the front end of the inner cylinder and the tail end of the air inlet cavity of the outer cylinder, and a space for accommodating high-pressure gas is formed between the outer side of the middle area of the inner cylinder and the middle cavity section of the outer cylinder; the outer cylinder is sleeved outside the inner cylinder and fixed with the inner cylinder, normal pressure air enters the cavity through the air inlet cavity of the outer cylinder, high pressure air enters the gap between the front end of the inner cylinder and the air inlet cavity of the outer cylinder through the air inlet and is mixed with the normal pressure air, and the mixture is ejected and output together. The utility model also provides a combined injection device, and the injection unit is arranged in the shell in parallel or in an angle according to the requirements, so that the coverage range of the injected fluid is adjusted. The utility model has the advantages of simple structure, reasonable design, flexible combination according to the demands of customers, and the like.
Description
Technical Field
The utility model relates to the technical field of ejector application, in particular to an ejector unit and a combined ejector device.
Background
The ejector transfers kinetic energy of the ejected air flow to the ejected air flow through turbulent flow transportation in a mixing layer contacted between the ejected air flow and the ejected air flow, so that the effect of increasing total pressure of the ejected air flow is achieved. At present, most of ejectors applied in the engineering field are large-scale integrated structures, air enters the ejectors from an air inlet, then air flow after being pressurized is sent out towards one direction after being mixed and pressurized in a cavity, the flowing direction of the air is single, and the coverage range is limited.
In order to adapt to more application scenes and realize the multi-angle large-range air supply requirement, some prior art changes the cavity of the ejector, for example, the combination form of the cavities is increased, 4-7 cavities are combined together, and the air supply quantity is increased. However, the combined ejector still has the problems of huge volume and limited air supply coverage range, and after the air outlet diffusion angle is increased, the air flow is gathered towards the middle.
Therefore, how to provide a compact and large-area air supply device with wide coverage and adjustable and controllable according to the needs is a current urgent problem.
Disclosure of Invention
According to the technical problems that the existing ejector is large in size and limited in air outlet coverage range, the ejector unit and the combined ejector device are provided. The utility model realizes the design of the miniaturized injection unit mainly through the cooperation of the outer cylinder and the inner cylinder, and realizes the air supply requirement of multi-angle large coverage area by reasonably arranging the injection unit on the shell, thereby fundamentally solving the defects of the prior art, and having the advantages of simple structure, reasonable design, flexible combination according to the requirement of customers and the like.
The utility model adopts the following technical means:
an ejector unit comprising:
the front end of the outer cylinder is provided with an air inlet cavity, and the outer wall of the middle cavity section is provided with at least one air inlet for introducing high-pressure air;
the inner cylinder is provided with a gradually-expanding inner cavity structure, the inner cylinder is coaxial and communicated with the cavity of the outer cylinder, a gap is arranged between the front end of the inner cylinder and the tail end of the air inlet cavity of the outer cylinder, and a space for accommodating high-pressure gas is formed between the outer side of the middle area of the inner cylinder and the middle cavity section of the outer cylinder;
the outer cylinder is sleeved outside the inner cylinder and fixed with the inner cylinder, normal pressure air enters the cavity through the air inlet cavity of the outer cylinder, high pressure air enters the gap between the front end of the inner cylinder and the air inlet cavity of the outer cylinder through the air inlet and is mixed with the normal pressure air, and the mixture is ejected and output together.
Further, the outer cylinder comprises an outer cylinder body, the outer cylinder body is of a hollow columnar structure, the front end of the outer cylinder body is a straight cylinder type or a tapered air inlet cavity, and an inner thread is arranged in a region where the tail end of the outer cylinder body is matched and fixed with the inner cylinder; the inner wall side of the tail end of the outer cylinder body is fixed with the outer wall side of the inner cylinder in a sealing way.
Further, the inner cylinder comprises an inner cylinder body, the front end of the inner cylinder is provided with an arc structure transition part matched with the tail end of the air inlet cavity, the middle area of the inner cylinder body is a mixing cavity, and the tail end of the inner cylinder body is provided with external threads matched with internal threads on the outer cylinder body.
Further, an outer boss is arranged on the outer wall of the tail end of the inner cylinder body, which is close to the mixing chamber, a sealing groove for accommodating a sealing element is arranged on the outer boss, and the outer wall side of the inner cylinder is sealed with the inner wall side of the tail end of the outer cylinder body through the sealing element.
Further, the injection unit further comprises a locking piece, and the locking piece is matched and fixed with the outer wall of the tail end of the inner cylinder to lock the outer cylinder to the outer side of the inner cylinder.
The utility model also discloses a combined type injection device, which comprises a shell and the injection unit, wherein at least 2 fixing holes are formed in the air outlet side of the shell and used for fixing the injection unit, the adjacent injection units are arranged in parallel or in an angle, and a high-pressure air inlet pipeline is arranged on the side wall of the shell.
Further, the shell is of a hollow structure, and an installation hoisting component is arranged on the shell or on the shell side; the air outlet side of the shell is provided with double-layer fixing plates which are respectively used for fixing the front end and the tail end of the injection unit, and a space between the double-layer fixing plates is used for introducing high-pressure gas.
The utility model also discloses a combined type injection device, which comprises a shell and the injection unit, wherein at least 2 fixing holes are formed in the air outlet side of the shell and used for fixing the injection unit, the adjacent injection units are arranged at an angle, a nozzle used for spraying water mist is arranged at the front part or the rear part of the shell, and a high-pressure air inlet pipeline and a water inlet pipeline are arranged on the side wall of the shell.
Further, the nozzle is arranged at a position which satisfies that the sprayed water mist uniformly covers the inlet of each injection unit.
Further, the shell is of a hollow structure, an installation hoisting component used for external fixation is arranged on the shell or on the shell side, a double-layer fixing plate is arranged on the air outlet side of the shell and used for fixing the front end and the tail end of the injection unit respectively, and a space between the double-layer fixing plates is used for introducing high-pressure air.
Compared with the prior art, the utility model has the following advantages:
1. the injection unit designed by the utility model has the injection function realized through the structural design and the matching of the outer cylinder and the inner cylinder, and has simple structure and small volume.
2. The combined type injection device is characterized in that a plurality of injection units are arranged on the combined type injection device in parallel or in an angle mode according to requirements through the shell, the coverage area can be adjusted according to the requirements, and in the output process, fan-shaped air flow or conical air flow or other air flow forms matched with the use area can be formed. Meanwhile, the structural form of the shell is not limited, and the shell can be adjusted according to actual working conditions and has strong adaptability.
3. The combined type injection device can be further provided with the water mist nozzle according to the use condition, and forms water mist with corresponding shapes according to different arrangement forms of injection units, so that the dust removal effect is achieved.
In conclusion, the technical scheme of the utility model can flexibly match the injection unit according to the air outlet requirement of actual conditions, and is matched with the area range to realize full coverage. The size has been reduced greatly to overall structure, and the assembly is simple, and the practicality is strong. Therefore, the technical scheme of the utility model solves the defects in the prior art.
Based on the reasons, the utility model can be widely popularized in the application field of ejectors.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of an ejector unit in example 1 of the present utility model.
Fig. 2 is a schematic structural view of an ejector unit in embodiment 2 of the present utility model.
Fig. 3 is a schematic structural view of the outer cylinder in example 1 of the ejector unit of the present utility model.
Fig. 4 is a schematic structural view of the outer cylinder in example 2 of the ejector unit of the present utility model.
FIG. 5 is a schematic structural view of the inner barrel of the ejector unit of the present utility model.
FIG. 6 is a schematic structural view of a locking member of the ejector unit of the present utility model.
Fig. 7 is a schematic structural diagram of a combined injection device of the present utility model, in which a combination of 3 injection units is adopted.
Fig. 8 is an isometric cross-sectional view of fig. 7, showing a nozzle disposed within the housing.
Fig. 9 is a horizontal cross-sectional view of fig. 7.
Fig. 10 is a schematic structural view of a combined injection device of the present utility model, in which a combination of 5 injection units is adopted.
FIG. 11 is a schematic structural view of a combined injection device of the utility model, wherein a combination of 3 injection units is adopted, and a shell is cylindrical.
Fig. 12 is an isometric cross-sectional view of fig. 11.
In the figure: 1. an outer cylinder; 11. an outer cylinder body; 12. an air inlet cavity; 13. an air inlet; 14. a high-pressure gas accommodating space; 15. a first seal groove; 16. an internal thread; 17. an inner boss; 2. an inner cylinder; 21. an inner cylinder body; 22. the front end of the inner cylinder; 23. a mixing chamber; 24. an outer boss; 25. a second seal groove; 26. an external thread; 3. a locking member; 4. an outer seal; 5. an inner seal; 6. a gap; 7. a housing; 8. a water inlet pipeline; 9. a high pressure air inlet pipeline; 10. and (3) a nozzle.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Example 1
As shown in fig. 1, the utility model provides an injection unit, which consists of an outer cylinder 1, an inner cylinder 2 and a locking piece 3, in particular:
the outer cylinder 1 (as shown in fig. 3), the outer cylinder 1 comprises an outer cylinder body 11, the outer cylinder body 11 is of a hollow columnar structure, and can be of a cylindrical shape, the front end of the outer cylinder body is an air inlet cavity 12 with a tapered type, and the tapered type is a gradient structure extending from the end part of the left side of the figure to the front end of the cavity; (the structure of the air inlet cavity 12 can also be a straight cylinder type, the purpose of which is to enter normal pressure air), the middle cavity section of the outer cylinder body 11 is a high pressure air accommodating space 14, at least one air inlet 13 for introducing high pressure air is arranged on the outer wall of the middle cavity section, and an upper air inlet 13 and a lower air inlet 13 which are communicated or a plurality of air inlets are arranged according to actual working conditions;
in fig. 3, a thread fixed with the external shell is further arranged on the outer wall of the outer cylinder body 11 at the front end of the air inlet cavity 12. An internal thread 16 is arranged at the region where the tail end of the outer cylinder body 11 is matched with the inner cylinder 2; the inner wall side of the tail end of the outer cylinder body 11 is provided with an inner boss 17 matched with the outer wall of the inner cylinder 2, the outer wall of the outer cylinder body 11 corresponding to the inner boss 17 is provided with a first sealing groove 15, the outer sealing element 4 is arranged in the first sealing groove 15, and the sealing structure of the outer sealing element 4 is used when the combined shell is sealed.
An inner cylinder 2 (as shown in fig. 5), wherein the inner cylinder 2 comprises an inner cylinder body 21 with a gradually expanding inner cavity structure, the front end 22 of the inner cylinder is provided with an arc structure transition part matched with the closing part of the air inlet 12 cavity, the transition part is in an arc outwards bending mode, a gap 6 is arranged between the front end of the transition part and the tail end of the air inlet cavity 12 of the outer cylinder 1, the middle area of the inner cylinder body 21 is a mixing cavity 23, and a high-pressure gas accommodating space 14 is reserved between the outer side of the middle area and the middle cavity section of the outer cylinder;
an outer boss 24 is arranged on the outer wall of the part, close to the mixing cavity 23, of the tail end of the inner cylinder body 21, a second sealing groove 25 is arranged on the outer boss 24, and the outer boss 24 and the inner boss 17 are matched and sealed through an inner sealing piece 5; the tail end of the inner cylinder body 21 is provided with an external thread 26 matched with the internal thread 16 on the outer cylinder body 11.
The injection unit can also comprise a locking piece 3 (shown in fig. 6), which is matched with an external thread 26 arranged on the outer wall of the tail end of the inner cylinder 2 to lock the outer cylinder 1 to the outer side of the inner cylinder 2.
Example 2
As shown in fig. 2, a combined injection device is different from the embodiment 1 in the structure of the outer barrel 1, specifically, see fig. 4, the front end of the outer barrel body 11 is not designed with threads, the design of an inner boss 17 is omitted in the outer barrel body 11, and the inner wall is directly sealed with the outer boss 24 through an inner sealing member 5. Meanwhile, the structure that the first sealing groove 15 and the outer sealing piece 4 are arranged on the outer wall of the outer cylinder body 11 is omitted, and when the outer cylinder body is sealed with the combined shell, the outer cylinder body can be sealed in an adhering or welding mode.
Example 3
As shown in fig. 7, a combined injection device comprises a casing 7 and the injection unit, wherein the casing 7 is of a rectangular hollow cavity structure, and mounting holes or mounting hanging rings or other fixing structures for external fixation are formed in two side walls of the casing 7.
The air outlet side of the shell 7 is provided with 3 fixing holes for fixing the injection units, corresponding injection units are arranged on a fixing plate with three angle orientations in the front side area, namely, adjacent injection units are arranged at angles, and the side wall of the shell is provided with a high-pressure air inlet pipeline 9.
The air outlet side of the shell 7 is provided with double-layer fixing plates (shown in fig. 9) for fixing the front end and the tail end of the injection unit respectively, and the space between the double-layer fixing plates is used for introducing high-pressure gas.
The structural design can enable the output air flow to form an air flow in a fan-shaped area and cover a large area, thereby meeting the use requirement.
Example 4
As shown in fig. 8, on the basis of embodiment 3, a combined type injection device is provided with a nozzle 10 for spraying water mist inside the housing 7, and a high-pressure air inlet pipeline 9 and a water inlet pipeline 8 are arranged on the side wall of the housing 7. The nozzle 10 is arranged at a position behind a plurality of the injection units, and the arrangement position is enough that the water mist sprayed by the nozzle 10 uniformly covers the inlet of each injection unit. By the design, the air flow with the water mist forms water mist which is laid at an angle, and the purpose of removing dust and falling dust can be achieved by using the water mist.
Example 5
As shown in fig. 10, a combined injection device is provided, and on the basis of example 3, a combination of 5 injection units is adopted. The front side area is provided with 5 air supply directions, and the shell is fixed through the fixing holes at two sides, so that the whole structure of the air supply dust remover is far smaller than that of an ejector in the prior art, and the air supply dust remover is more flexible, more compact and easy to arrange by adopting the design form, can be used according to the field required, and can realize large-area coverage air supply dust removal by applying a corresponding scheme.
Example 6
As shown in fig. 11, a combined injection device is provided, the adopted shell 7 is a cylindrical shell, and a combination form of 3 injection units is adopted, and a side wall fixed with an outer wall is arranged on the cylinder and can be hung above a using area. The front injection unit is distributed and fixed in a trisection way on the round end face, and outputs a conical airflow coverage area in a diffusion way. As shown in fig. 12, a nozzle 10 is provided inside the casing 7 to supply mist and achieve the purpose of air supply and dust removal.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (9)
1. An ejector unit, comprising:
the front end of the outer cylinder is provided with an air inlet cavity, and the outer wall of the middle cavity section is provided with at least one air inlet for introducing high-pressure air;
the inner cylinder is provided with a gradually-expanding inner cavity structure, the inner cylinder is coaxial and communicated with the cavity of the outer cylinder, a gap is arranged between the front end of the inner cylinder and the tail end of the air inlet cavity of the outer cylinder, and a space for accommodating high-pressure gas is formed between the outer side of the middle area of the inner cylinder and the middle cavity section of the outer cylinder;
the outer cylinder is sleeved outside the inner cylinder and fixed with the inner cylinder, normal pressure air enters the cavity through the air inlet cavity of the outer cylinder, high pressure air enters the gap between the front end of the inner cylinder and the air inlet cavity of the outer cylinder through the air inlet and is mixed with the normal pressure air, and the mixture is ejected and output together;
the outer cylinder comprises an outer cylinder body, the outer cylinder body is of a hollow columnar structure, the front end of the outer cylinder body is a straight cylinder type or tapered air inlet cavity, an inner thread is arranged in a region where the tail end of the outer cylinder body is matched and fixed with the inner cylinder, and the inner wall side of the tail end of the outer cylinder body is fixed with the outer wall side of the inner cylinder in a sealing mode.
2. The injection unit of claim 1 wherein the inner barrel comprises an inner barrel body, the front end of the inner barrel has a transition portion of circular arc configuration mating with the end of the air inlet chamber, the middle region of the inner barrel body is a mixing chamber, and the rear end of the inner barrel body has external threads mating with internal threads on the outer barrel body.
3. The ejector unit according to claim 2, wherein an outer boss is provided on an outer wall of the inner cylinder body near the mixing chamber portion at a trailing end thereof, a seal groove for accommodating a seal member is provided on the outer boss, and the inner cylinder outer wall side is sealed with a trailing end inner wall side of the outer cylinder body by the seal member.
4. The injection unit of claim 1 further comprising a locking member cooperatively secured to the outer wall of the inner barrel tail end for locking the outer barrel to the outer side of the inner barrel.
5. The combined type injection device is characterized by comprising a shell and the injection unit according to any one of claims 1-4, wherein at least 2 fixing holes are formed in the air outlet side of the shell and used for fixing the injection unit, adjacent injection units are arranged in parallel or in an angle, and a high-pressure air inlet pipeline is arranged on the side wall of the shell.
6. The combination injection device of claim 5, wherein: the shell is of a hollow structure, and an installation hoisting component is arranged on the shell or on the shell side; the air outlet side of the shell is provided with double-layer fixing plates which are respectively used for fixing the front end and the tail end of the injection unit, and a space between the double-layer fixing plates is used for introducing high-pressure gas.
7. The combined type injection device is characterized by comprising a shell and the injection unit according to any one of claims 1-4, wherein at least 2 fixing holes are formed in the air outlet side of the shell and used for fixing the injection unit, adjacent injection units are arranged in parallel or in an angle, a nozzle used for spraying water mist is arranged at the front part or the rear part of the shell, and a high-pressure air inlet pipeline and a water inlet pipeline are arranged on the side wall of the shell.
8. The combination ejector of claim 7, wherein: the position of the nozzle satisfies that the sprayed water mist uniformly covers the inlet of each injection unit.
9. The combination ejector of claim 7, wherein: the shell is of a hollow structure, an installation hoisting component is arranged on the shell or on the shell side, a double-layer fixing plate is arranged on the air outlet side of the shell and used for fixing the front end and the tail end of the injection unit respectively, and a space between the double-layer fixing plates is used for introducing high-pressure gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788958.6U CN219654993U (en) | 2023-04-11 | 2023-04-11 | Injection unit and combined injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788958.6U CN219654993U (en) | 2023-04-11 | 2023-04-11 | Injection unit and combined injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654993U true CN219654993U (en) | 2023-09-08 |
Family
ID=87855042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320788958.6U Active CN219654993U (en) | 2023-04-11 | 2023-04-11 | Injection unit and combined injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654993U (en) |
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2023
- 2023-04-11 CN CN202320788958.6U patent/CN219654993U/en active Active
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