Pressurized injection device

Abstract

The utility model provides a pressurized jet device which comprises a mixer of a tubular structure and a suction pipe fixedly connected and communicated with the side wall of the mixer, one end of the mixer is an inlet end, the other end of the mixer is an outlet end, and the included angle between the suction pipe and the inlet end is an acute angle. The mixer internally comprises a diameter expanding section, a diameter reducing section and a mixing section which are arranged from the inlet end to the outlet end, the suction pipe is communicated with the mixing section, and a damping assembly located between the suction pipe and the outlet end is further arranged in the mixing section in a telescopic mode. According to the utility model, the problem that the connection of the mixer is loosened due to vibration generated along with pressurization in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ejector equipment, in particular to a pressure-boosting injection device. Background Art

[0002] An ejector can be used on a pressure pipeline to increase the conveying pressure of materials in the pipeline. Generally, an ejector includes a mixer with a pipeline structure and a suction pipe connected to the mixer. A high-pressure driving fluid (such as high-pressure water) is introduced into the mixer. A nozzle with one end large and the other end small is arranged in the mixer. When passing through the nozzle, according to Bernoulli's theorem, as the fluid velocity increases, the pressure decreases. A low-pressure area (suction chamber) is formed around the tip of the nozzle. The material introduced from the suction pipe enters the low-pressure area. When the pressure in the low-pressure area is lower than the pressure of the suction material, the suction material is entrained into the low-pressure area. Then, the two fluid flows pass through the other end of the ejector and are finally mixed and discharged. In this process, the pressure of the suction fluid (i.e., the material) will increase, the pressure of the driving fluid will decrease, and the pressure of the discharged fluid is between the two, so that the material can be pressure-boosted and injected. However, during actual use, the mixer will vibrate along with the pressure boost, which may cause the connection between the mixer and other components to become loose. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a pressure-boosting injection device, which solves the problem that the mixer connection may become loose due to vibration during pressure boost in the prior art.

[0004] According to an embodiment of the utility model, a pressure-boosting injection device includes a mixer with a tubular structure and a suction pipe fixedly connected and communicating with the side wall of the mixer. One end of the mixer is an inlet end and the other end is an outlet end. The included angle between the suction pipe and the inlet end is an acute angle. The mixer includes a diameter-expanding section, a diameter-reducing section, and a mixing section arranged from the inlet end to the outlet end. The suction pipe communicates with the mixing section, and a shock-absorbing component located between the suction pipe and the outlet end is telescopically arranged in the mixing section.

[0005] In the above embodiment, the suction pipe is inclined, which can make the introduced material enter the mixing section of the mixer more smoothly, improve the mixing efficiency. At the same time, the shock-absorbing component arranged in the mixing section absorbs vibration through telescoping, thereby reducing the vibration amplitude of the mixer. Therefore, the problem that the mixer connection may become loose due to vibration during pressure boost in the prior art is solved.

[0006] Furthermore, the shock absorbing assembly includes a first butt ring and a second butt ring fixedly connected between the suction pipe and the outlet end, and a reducing tube located between the first butt ring and the second butt ring, a spring is arranged between the reducing tube and the second butt ring, one end of the reducing tube is large and the other end is small, and the large end faces the suction pipe, and the small end can be telescoped through the second butt ring.

[0007] Furthermore, the large end of the reducing cylinder is connected with a sliding ring, the sliding ring can be abutted against the first abutting ring, and the spring is arranged between the sliding ring and the second abutting ring.

[0008] Furthermore, one end of the diameter-reducing section close to the mixing section is fixedly connected to a tapered tube, and the tapered tube has a small end extending toward the diameter-reducing cylinder.

[0009] Furthermore, a plurality of through holes are arranged on the outer wall of one end of the tapered tube away from the reduced diameter section.

[0010] Furthermore, a supporting ring platform is provided in the inner ring recess of the end portion of the inlet end, and a sealing ring is overlapped on the supporting ring platform.

[0011] Furthermore, a connecting sleeve is fixedly connected to the end of the suction pipe away from the mixer.

[0012] Furthermore, a tapered hole is provided between the enlarging diameter section and the reducing diameter section.

[0013] Furthermore, an arc-shaped hole is provided between the diameter-reducing section and the mixing section.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The vibration-absorbing assembly arranged in the mixing section absorbs the vibration by expansion and contraction, thereby reducing the vibration amplitude of the mixer, thereby solving the problem in the prior art that vibration may cause the mixer connection to become loose as the pressure is increased;

[0016] At the same time, the suction pipe is set to be inclined, so that the material can be introduced into the mixer more smoothly, and the material introduced in this way can be mixed with the driving fluid more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0019] In the above drawings:

[0020] Mixer 1, suction pipe 2, inlet end 3, outlet end 4, diameter-expanding section 5, diameter-reducing section 6, mixing section 7, sealing ring 8, first abutting ring 9, second abutting ring 10, diameter-reducing cylinder 11, spring 12, sliding ring 13, conical pipe 14, through hole 15, connecting sleeve 16. Specific implementation mode

[0021] The technical solutions in the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0023] In an exemplary embodiment, as Figure 1 、 2 shown, this embodiment provides a pressurized injection device, which includes a mixer 1 with a tubular structure, and a suction pipe 2 fixedly connected and communicating with the side wall of the mixer 1. One end of the mixer 1 is an inlet end 3 and the other end is an outlet end 4. The included angle between the suction pipe 2 and the inlet end 3 is an acute angle; the mixer 1 includes a diameter-expanding section 5, a diameter-reducing section 6 and a mixing section 7 arranged from the inlet end 3 to the outlet end 4. The suction pipe 2 is communicated with the mixing section 7, and a shock-absorbing component located between the suction pipe 2 and the outlet end 4 is telescopically arranged in the mixing section 7.

[0024] In the above embodiments, the suction pipe 2 is inclined, which can make the imported material enter the mixing section 7 of the mixer 1 more smoothly, improving the mixing efficiency. At the same time, the shock absorption component arranged in the mixing section 7 absorbs tremors through expansion and contraction, thereby reducing the tremor amplitude of the mixer 1. Therefore, the problem in the prior art that tremors may occur during pressurization and may cause the connection of the mixer 1 to become loose is solved. More specifically, a conical hole is arranged between the diameter expansion section 5 and the diameter reduction section 6, which can make the imported driving fluid gather towards the center and then enter the diameter reduction section 6 more stably. Further, an arc-shaped hole is also arranged between the diameter reduction section 6 and the mixing section 7, so that the driving fluid diffuses uniformly outwards after leaving the diameter reduction section 6 and can be mixed with the material more evenly. More specifically, a support ring platform is recessed in the inner ring at the end of the inlet end 3, and a sealing ring 8 is lapped on the support ring platform. A similar sealing structure can also be added at the other end as appropriate to improve the connection sealing performance. Further, a connecting sleeve 16 is fixedly connected to the end of the suction pipe 2 facing away from the mixer 1 for connecting the suction pipe 2 to a material access source (such as a material storage tank, a hopper, etc.). Similarly, a sealing structure can also be added at the connection with the material access source.

[0025] As Figure 1 , 2 shown, in a further exemplary solution, the shock absorption component includes a first abutting ring 9 and a second abutting ring 10 fixedly connected between the suction pipe 2 and the outlet end 4, and a diameter reduction cylinder 11 located between the first abutting ring 9 and the second abutting ring 10. A spring 12 is arranged between the diameter reduction cylinder 11 and the second abutting ring 10. One end of the diameter reduction cylinder 11 is large and the other end is small, and the large end faces the suction pipe 2, and the small end can telescopically pass through the second abutting ring 10. During the mixing process of the material and the driving fluid, tremors will be generated. At this time, the diameter reduction cylinder 11 will be pushed. The cooperation of the diameter reduction cylinder 11 and the spring 12 enables the tremors to be converted into the expansion and contraction of the diameter reduction cylinder 11 in the mixing section 7, thus avoiding the occurrence of tremors in the mixer 1 or reducing the tremor degree of the mixer 1. More specifically, a sliding ring 13 is connected to the large end of the diameter reduction cylinder, and the sliding ring 13 can abut against the first abutting ring 9 and the spring 12 is arranged between the sliding ring 13 and the second abutting ring 10, which ensures that the diameter reduction cylinder 11 can smoothly expand and contract and slide in the mixing section 7.

[0026] As Figure 1 , 2 shown, in a more detailed exemplary solution, a conical pipe 14 is also fixedly connected to the end of the diameter reduction section 6 close to the mixing section 7, and the conical pipe 14 has a small end extending towards the diameter reduction cylinder 11. The arranged conical pipe 14 can make the outlet section of the diameter reduction section 6 gradually become smaller. At the same time, a plurality of through holes 15 are arranged on the outer wall of the end of the conical pipe 14 facing away from the diameter reduction section 6, and these through holes 15 are for the driving fluid to diffuse outwards, thereby further increasing the mixing degree of the driving fluid and the material.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A boost injection device, characterized in that: The invention discloses a mixer comprising a tubular structure, and a suction pipe fixedly connected to and communicating with the side wall of the mixer, wherein one end of the mixer is an inlet end and the other end is an outlet end, and the angle between the suction pipe and the inlet end is an acute angle; the mixer comprises a narrowing section, a reducing section and a mixing section arranged from the inlet end to the outlet end, the suction pipe is communicated with the mixing section, and a shock absorbing component is telescopically arranged in the mixing section and is located between the suction pipe and the outlet end.

2. The boost injection device according to claim 1, characterized in that: The shock absorbing assembly includes a first butt ring and a second butt ring fixedly connected between the suction pipe and the outlet end, and a reducing tube located between the first butt ring and the second butt ring, a spring is arranged between the reducing tube and the second butt ring, one end of the reducing tube is large and the other end is small, and the large end faces the suction pipe, and the small end can be telescopically extended to pass through the second butt ring.

3. The boost injection device according to claim 2, characterized in that: The large end of the reducing cylinder is connected with a sliding ring, the sliding ring can be abutted against the first abutting ring, and the spring is arranged between the sliding ring and the second abutting ring.

4. The boost injection device according to claim 2, characterized in that: One end of the diameter-reducing section close to the mixing section is also fixedly connected with a tapered tube, and the tapered tube has a small end extending toward the diameter-reducing cylinder.

5. The boost injection device according to claim 4, characterized in that: A plurality of through holes are arranged on the outer wall of one end of the tapered tube away from the reduced diameter section.

6. The boost injection device according to any one of claims 1 to 5, characterized in that: A supporting ring platform is recessed in the inner ring of the inlet end, and a sealing ring is overlapped on the supporting ring platform.

7. The boost injection device according to claim 6, characterized in that: The end of the suction pipe away from the mixer is fixedly connected with a connecting sleeve.

8. The boost injection device according to claim 1, characterized in that: A tapered hole is arranged between the enlarged diameter section and the reduced diameter section.

9. The boost injection device according to claim 1, characterized in that: An arc-shaped hole is arranged between the diameter-reducing section and the mixing section.

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