Multifunctional injector head of Venturi injector

Abstract

The utility model discloses a multifunctional injector head of a venturi injector, which belongs to the technical field of nozzles and comprises a contraction pipe, a nozzle and a mixing pipe, connecting flanges are mounted at one end of the contraction pipe and one end of the nozzle, and the connecting flanges are arranged at the small-caliber end of the contraction pipe and the large-caliber end of the nozzle. An auxiliary flange is installed at one end of the mixing pipe in a matched mode, the mixing pipe comprises a mixing cavity, a diffusion cavity, a material inlet pipe and a mixing outlet, the auxiliary flange is arranged at the end of the mixing cavity, the material inlet pipe is communicated with the upper portion of the mixing cavity, an external pipe is installed at the large-diameter end of the contraction pipe, and connecting threads are formed in the side wall of the external pipe. In this way, assembling and using are convenient.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically to a multi-functional nozzle for a Venturi injector. Background Technology

[0002] The main structure of the Venturi injector is a three-end interface injection head. One end is connected to an external fan, one end is connected to the material inlet, and the other end is the mixed material outlet. When the positive pressure air generated by the blower flows through the injector, it generates negative pressure suction, which sucks away the material located above the injector, thereby realizing the material conveying. The main materials conveyed include powders, granules, and bulk materials.

[0003] In order to create negative pressure, the nozzle tube includes a converging section, a nozzle section, and a diffuser section. The power source enters the nozzle section through the converging section. Due to the reduced cross-sectional area, the flow velocity increases significantly, the static pressure drops sharply, and a local vacuum is formed to achieve material suction. After passing through the diffuser section, the cross-sectional area increases, causing the flow velocity to decrease and the static pressure to rise, ultimately forming a stable output of mixed fluid. However, the existing integrated nozzle design is not convenient to use.

[0004] Based on this, this utility model designs a multi-functional injection head for a Venturi injector to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a multi-functional injection head for a Venturi injector.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-functional injection head for a Venturi injector includes a contraction tube, a nozzle, and a mixing tube. A connecting flange is installed at one end of the contraction tube and one end of the nozzle, respectively, with the connecting flange located at the small-diameter end of the contraction tube and the large-diameter end of the nozzle. An auxiliary flange is fitted to one end of the mixing tube. The mixing tube includes a mixing chamber, a diffusion chamber, a material inlet pipe, and a mixing outlet. The auxiliary flange is located at the end of the mixing chamber. The material inlet pipe connects to the upper part of the mixing chamber. An external connecting pipe is installed at the large-diameter end of the contraction tube, and a connecting thread is formed on the side wall of the external connecting pipe. 。

[0008] Furthermore, both the small-diameter end of the shrink tube and the large-diameter end of the nozzle are connected to connecting pipes, and the connecting flange is fixed to the end of the connecting pipe.

[0009] Furthermore, the outer diameter of the connecting pipe, the outer diameter of the small-diameter end of the contraction tube, and the outer diameter of the large-diameter end of the nozzle are the same, and the inner diameter of the connecting pipe, the inner diameter of the small-diameter end of the contraction tube, and the inner diameter of the large-diameter end of the nozzle are the same.

[0010] Furthermore, the nozzle and the connecting pipe at the nozzle end are both located inside the mixing chamber, and the auxiliary flange and the connecting flange are fitted together.

[0011] Furthermore, a sealing groove is provided at the end of the connecting pipe, and a sealing pipe is inserted into the sealing groove. The length of the sealing groove is slightly less than the length of the connecting pipe, the length of the sealing pipe is twice the length of the sealing groove, and the inner diameter of the sealing pipe is equal to the inner diameter of the connecting pipe.

[0012] Furthermore, a sealing element is installed at the small-diameter end of the nozzle. The sealing element includes a side plate, a rotating rod, and a baffle. The side plate is fixed to the bottom end of the nozzle, the rotating rod rotates between the side plates, and the baffle is fixed to the rotating rod.

[0013] Furthermore, the diameter of the baffle is larger than the outer diameter of the small-diameter end of the nozzle, and an adjusting screw is threaded through the bottom end of the mixing chamber.

[0014] Furthermore, the top of the mixing chamber is connected to a connecting screw tube, and the material inlet pipe includes an inverted conical tube, a disturbance frame, and an installation tube, with the installation tube and the connecting screw tube threaded together.

[0015] Furthermore, a disturbance rod is rotatably passed through the inner wall of the disturbance frame, and sub-rods are installed at equal intervals on the side wall of the disturbance rod, with a rotating motor connected to the end of the disturbance rod.

[0016] Furthermore, the inverted conical tube and the mounting tube are respectively threaded to the top and bottom of the disturbance frame.

[0017] Beneficial effects

[0018] 1. By setting up a shrink tube, nozzle, mixing tube, connecting flange and auxiliary flange, and utilizing the cooperation of the connecting flange and auxiliary flange, the shrink tube, nozzle and mixing tube are assembled to form a Venturi injector nozzle. Compared with the traditional integrated setup, it is easier to install and use; by setting an external pipe and connecting thread, it is easy to connect to an external power source.

[0019] 2. By setting a sealing groove and a sealing tube, the sealing tube is installed inside the contraction tube and nozzle through the sealing groove, providing an auxiliary connection between the contraction tube and nozzle from the inside and improving the sealing performance of the connection. By setting a side plate, rotating rod, baffle, and adjusting screw, when not in use, rotating the adjusting screw moves it upward, lifting the baffle. With the cooperation of the rotating rod, the baffle rotates to seal the nozzle end, preventing material from flowing back into the nozzle, thus having an anti-backflow function. By setting a connecting screw, it is easy to install the material inlet pipe on the mixing chamber. By setting an inverted conical tube, a disturbance frame, and an installation tube, the material inlet pipe is assembled by the threads of the three components, which is convenient to use. By setting a disturbance rod, a sub-rod, and a rotating motor, external material enters the mixing chamber through the material inlet pipe. During the process, with the cooperation of the rotating motor, the disturbance rod and sub-rod rotate to further disperse the material, making it easier for it to enter the mixing chamber for mixing, thus having an auxiliary mixing function. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the main structure of a multi-functional injection head for a Venturi injector according to this utility model;

[0022] Figure 2 This is a perspective view of the converging tube structure of a multifunctional injection head for a Venturi injector according to the present invention.

[0023] Figure 3 This utility model discloses a three-dimensional nozzle structure for a multi-functional injection head of a Venturi injector. Figure 1 ;

[0024] Figure 4 This utility model discloses a three-dimensional nozzle structure for a multi-functional injection head of a Venturi injector. Figure 2 ;

[0025] Figure 5 This is a perspective view of the mixing tube structure of a multifunctional injection head for a Venturi injector according to this utility model;

[0026] Figure 6 This is a three-dimensional view of the material inlet pipe structure of a multi-functional injection head for a Venturi injector according to this utility model.

[0027] The labels in the diagram represent:

[0028] 1. Shrink tube; 2. Nozzle; 3. Mixing tube; 4. Connecting flange; 5. Auxiliary flange; 6. Mixing chamber; 7. Diffusion chamber; 8. Material inlet pipe; 9. Mixing outlet; 10. External pipe; 11. Connecting thread; 12. Connecting pipe; 13. Sealing groove; 14. Sealing pipe; 15. Side plate; 16. Rotating rod; 17. Baffle plate; 18. Adjusting screw; 19. Connecting screw tube; 20. Inverted conical tube; 21. Disturbance frame; 22. Mounting pipe; 23. Disturbance rod; 24. Sub-rod; 25. Rotating motor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 and Figure 3 A multi-functional nozzle for a Venturi injector includes a contraction tube 1, a nozzle 2, and a mixing tube 3. A connecting flange 4 is installed at one end of the contraction tube 1 and one end of the nozzle 2. The connecting flange 4 is located at the small-diameter end of the contraction tube 1 and the large-diameter end of the nozzle 2. An auxiliary flange 5 is installed at one end of the mixing tube 3. The mixing tube 3 includes a mixing chamber 6, a diffusion chamber 7, a material inlet pipe 8, and a mixing outlet 9. The auxiliary flange 5 is located at the end of the mixing chamber 6. The material inlet pipe 8 is connected to the upper part of the mixing chamber 6. An external pipe 10 is installed at the large-diameter end of the contraction tube 1. A connecting thread 11 is provided on the side wall of the external pipe 10.

[0032] In this embodiment of the utility model, when in use, the nozzle 2 is connected to the mixing chamber 6, so that the connecting flange 4 and the auxiliary flange 5 fit together. By using the cooperation of the two, the connection of the contraction tube 1, the nozzle 2 and the mixing tube 3 is realized, thereby realizing the assembly and connection of the Venturi injector nozzle. The connecting thread 11 on the outer pipe 10 is connected to the external blower. The power source generated by the external blower enters the nozzle 2 through the contraction tube 1. Due to the reduction of the cross-sectional area, the flow velocity increases significantly, the static pressure drops sharply, and a local vacuum is formed. The external material enters the mixing chamber 6 through the material inlet pipe 8 and is mixed in the mixing chamber 6. After passing through the diffusion chamber 7, the cross-sectional area expands, causing the flow velocity to decrease and the static pressure to rise. Finally, a stable output mixed fluid is formed and ejected out through the mixing outlet 9.

[0033] In this embodiment of the utility model, by setting a shrink tube 1, a nozzle 2, a mixing tube 3, a connecting flange 4, and an auxiliary flange 5, and by utilizing the cooperation of the connecting flange 4 and the auxiliary flange 5, the shrink tube 1, the nozzle 2, and the mixing tube 3 are assembled to form a Venturi injector nozzle, which is easier to install and use compared to the traditional integrated setup; by setting an external pipe 10 and a connecting thread 11, it is easy to connect to an external power source.

[0034] In one embodiment of this utility model, a connecting pipe 12 is connected to both the small-diameter end of the contraction tube 1 and the large-diameter end of the nozzle 2. A connecting flange 4 is fixed to the end of the connecting pipe 12. The outer diameter of the connecting pipe 12, the outer diameter of the small-diameter end of the contraction tube 1, and the outer diameter of the large-diameter end of the nozzle 2 are the same. The inner diameter of the connecting pipe 12, the inner diameter of the small-diameter end of the contraction tube 1, and the inner diameter of the large-diameter end of the nozzle 2 are the same. The nozzle 2 and the connecting pipe 12 at the end of the nozzle 2 are both arranged in the mixing chamber 6. The auxiliary flange 5 and the connecting flange 4 are fitted together. A sealing groove 13 is opened at the end of the connecting pipe 12. A sealing pipe 14 is inserted into the sealing groove 13. The length of the sealing groove 13 is slightly less than the length of the connecting pipe 12. The length of the sealing pipe 14 is equal to twice the length of the sealing groove 13. The inner diameter of the sealing pipe 14 is equal to the inner diameter of the connecting pipe 12. The sealing pipe 14 is placed into the sealing groove 13. With the assistance of the two, the contraction tube 1 and the nozzle 2 are connected, which improves the sealing performance of the connection.

[0035] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, a sealing component is installed at the small-diameter end of nozzle 2. The sealing component includes a side plate 15, a rotating rod 16, and a baffle 17. The side plate 15 is fixed to the bottom end of nozzle 2, the rotating rod 16 rotates between the side plates 15, and the baffle 17 is fixed on the rotating rod 16. The diameter of the baffle 17 is larger than the outer diameter of the small-diameter end of nozzle 2. An adjusting screw 18 is threaded through the bottom end of mixing chamber 6, and a connecting screw tube 19 is connected to the top end of mixing chamber 6. The material inlet pipe 8 includes an inverted conical pipe 20, a disturbance frame 21, and an installation pipe 22. The inverted conical pipe 20 and the installation pipe 22 are threaded to the top and bottom ends of disturbance frame 21, respectively. The installation pipe 22 and the connecting screw tube 19 are threaded together. A disturbance rod 23 is rotatably passed through the inner wall of disturbance frame 21. Sub-rods 24 are installed at equal intervals on the side wall of disturbance rod 23, and a rotating motor 25 is connected to the end of disturbance rod 23.

[0036] In this embodiment of the invention, during use, the nozzle 2 is first connected to the mixing chamber 6, and then the sealing tube 14 is installed in the sealing groove 13, so that the connecting flange 4 and the auxiliary flange 5 fit together. The connection of the contraction tube 1, nozzle 2, and mixing tube 3 is achieved through their cooperation, thus realizing the assembly and connection of the Venturi injector head. The external blower is connected via the connecting thread 11 on the external pipe 10. The power source generated by the external blower enters the nozzle 2 through the contraction tube 1. Under the action of the wind, the baffle 17 is simultaneously blown open, allowing the nozzle 2 and the mixing chamber 6 to connect. Due to the reduced cross-sectional area, the flow velocity increases significantly, and the static pressure drops sharply. A partial vacuum is formed, and external materials enter the mixing chamber 6 through the material inlet pipe 8. During the process, with the cooperation of the rotating motor 25, the disturbance rod 23 and the sub-rod 24 are driven to rotate to further disperse the materials, making it easier for them to enter the mixing chamber 6 for mixing. Finally, after passing through the diffusion chamber 7, the cross-sectional area increases, resulting in a decrease in flow rate and an increase in static pressure, ultimately forming a stable output mixed fluid, which is ejected out through the mixing outlet 9. When not in use, the adjusting screw 18 is rotated, which moves upward to lift the baffle 17. With the cooperation of the rotating rod 16, the baffle 17 rotates to seal the end of the nozzle 2, which can prevent the material from flowing back into the nozzle 2.

[0037] In this embodiment of the utility model, by setting a side plate 15, a rotating rod 16, a baffle 17, and an adjusting screw 18, when not in use, rotating the adjusting screw 18 causes it to move upward and lift the baffle 17. With the cooperation of the rotating rod 16, the baffle 17 rotates to seal the end of the nozzle 2, which can prevent material from flowing back into the nozzle 2 and has an anti-backflow function. By setting a connecting screw tube 19, it is easy to install the material inlet pipe 8 on the mixing chamber 6. By setting an inverted conical tube 20, a disturbance frame 21, and a mounting tube 22, the material inlet pipe 8 is assembled by the three threads, which is convenient to use. By setting a disturbance rod 23, a sub-rod 24, and a rotating motor 25, external material enters the mixing chamber 6 through the material inlet pipe 8. During the process, with the cooperation of the rotating motor 25, the disturbance rod 23 and the sub-rod 24 are driven to rotate to further disperse the material, making it easier for it to enter the mixing chamber 6 for mixing, which has an auxiliary mixing function.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-functional jet head of a Venturi injector comprising a converging pipe (1), a nozzle (2) and a mixing pipe (3), characterized in that: The one end of the shrink tube (1) and the one end of the nozzle (2) are provided with connecting flanges (4), which are arranged at the small-diameter end of the shrink tube (1) and the large-diameter end of the nozzle (2), one end of the mixing tube (3) is provided with an auxiliary flange (5), the mixing tube (3) comprises a mixing cavity (6), a diffusion cavity (7), a material inlet pipe (8) and a mixing outlet (9), the auxiliary flange (5) is arranged at the end of the mixing cavity (6), the material inlet pipe (8) is communicated at the upper part of the mixing cavity (6), the large-diameter end of the shrink tube (1) is provided with an external connecting pipe (10), and the side wall of the external connecting pipe (10) is provided with a connecting thread (11).

2. The multi-functional jet head of a venturi ejector according to claim 1, wherein The small-diameter end of the shrink tube (1) and the large-diameter end of the nozzle (2) are connected with connecting pipes (12), and the connecting flanges (4) are fixed at the ends of the connecting pipes (12).

3. The multi-functional jet head of a venturi injector according to claim 2, wherein The outer diameter of the connecting pipe (12), the outer diameter of the small-diameter end of the shrink tube (1) and the outer diameter of the large-diameter end of the nozzle (2) are the same, and the inner diameter of the connecting pipe (12), the inner diameter of the small-diameter end of the shrink tube (1) and the inner diameter of the large-diameter end of the nozzle (2) are the same.

4. The multi-functional jet head of a venturi injector according to claim 3, wherein The nozzle (2) and the connecting pipe (12) at the end of the nozzle (2) are arranged in the mixing cavity (6), and the auxiliary flange (5) and the connecting flange (4) are arranged in close contact.

5. The multi-functional jet head of a venturi injector according to claim 4, wherein The end of the connecting pipe (12) is provided with a sealing groove (13), the sealing groove (13) is inserted with a sealing pipe (14), the length of the sealing groove (13) is slightly smaller than the length of the connecting pipe (12), the length of the sealing pipe (14) is equal to twice the length of the sealing groove (13), and the inner diameter of the sealing pipe (14) is equal to the inner diameter of the connecting pipe (12).

6. The multi-functional jet head of a venturi ejector according to claim 5, wherein The small-diameter end of the nozzle (2) is provided with a closure, which comprises a side plate (15), a rotating rod (16) and a baffle disc (17), the side plate (15) is fixed at the bottom end of the nozzle (2), the rotating rod (16) is rotatably arranged between the side plates (15), and the baffle disc (17) is fixed on the rotating rod (16).

7. The multi-functional jet head of a venturi injector according to claim 6, wherein The diameter of the baffle disc (17) is greater than the outer diameter of the small-diameter end of the nozzle (2), and the bottom end of the mixing cavity (6) is threaded through an adjusting screw (18).

8. The multi-functional jet head of a venturi ejector according to claim 7, wherein The top end of the mixing cavity (6) is connected with a connecting screw pipe (19), the material inlet pipe (8) comprises an inverted conical pipe (20), a disturbance frame (21) and a mounting pipe (22), the mounting pipe (22) and the connecting screw pipe (19) are threadedly connected.

9. The multi-functional jet head of a venturi ejector according to claim 8, wherein The inner wall of the disturbance frame (21) is rotatably penetrated by a disturbance rod (23), the side wall of the disturbance rod (23) is provided with sub-rod (24) at equal intervals, and the end of the disturbance rod (23) is connected with a rotating motor (25).

10. The multi-functional jet head of a venturi injector according to claim 9, wherein The inverted conical pipe (20) and the mounting pipe (22) are respectively threadedly fixed at the top end and the bottom end of the disturbance frame (21).

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