Split combined type ejector

Abstract

The utility model relates to a split combined type ejector. The ejector comprises a first connecting body, wherein a suction cavity is formed in the first connecting body, and an ejected airflow inlet communicated with the suction cavity is formed in the radial side wall of the first connecting body; a mixing cavity communicating with the suction cavity is formed in the second connecting body in the axial direction in a penetrating mode; a diffusion cavity communicating with the mixing cavity is formed in the third connecting body in the axial direction in a penetrating mode; an airflow outlet communicated with the diffusion cavity is formed in the fourth connecting body in the axial direction in a penetrating manner; the nozzle is mounted in the suction cavity and is used for introducing main injection airflow; wherein the first connecting body and the second connecting body are detachably connected, the second connecting body and the third connecting body are detachably connected, and the third connecting body and the fourth connecting body are detachably connected. According to the utility model, the manufacturing cost of the ejector is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ejectors, in particular to a split and combined ejector. Background Art

[0002] An ejector is a device for transporting fluids. Its working principle is to utilize the high-speed jet formed by high-pressure fluid passing through an ejector nozzle, thereby ejecting another low-pressure fluid, and performing momentum exchange inside the device to achieve the function of converting the low-pressure fluid into high-pressure fluid.

[0003] Most of the existing ejectors adopt an integral design, and their ejector flow channels are of an integral structure. This design has great limitations in different application environments and cannot quickly adjust the product to meet diverse application requirements, resulting in the product update and iteration speed being unable to meet the market requirements. In addition, the processing process of the integral ejector flow channel is complex, the production difficulty is relatively large, and the manufacturing cost is also relatively high. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems of complex processing, large production difficulty, and high manufacturing cost of the integral ejector flow channel in the prior art.

[0005] To solve the above technical problem, the utility model provides a split and combined ejector, comprising:

[0006] A first connecting body, inside which an inhalation cavity is arranged, and an entrained air flow inlet communicating with the inhalation cavity is arranged along its radial side wall;

[0007] A second connecting body, along its axial direction, a mixing cavity communicating with the inhalation cavity is arranged through it;

[0008] A third connecting body, along its axial direction, a diffuser cavity communicating with the mixing cavity is arranged through it;

[0009] A fourth connecting body, along its axial direction, an air flow outlet communicating with the diffuser cavity is arranged through it;

[0010] A nozzle, installed inside the inhalation cavity and used for introducing the main entraining air flow;

[0011] Wherein, the first connecting body and the second connecting body, the second connecting body and the third connecting body, and the third connecting body and the fourth connecting body are detachably connected to each other.

[0012] In an embodiment of the utility model, first connecting lugs symmetrically extend along the radial two sides of the first connecting body;

[0013] On the radial two sides symmetrically extending along the axial one end of the second connecting body, there are first hole columns that cooperate with the first connecting lugs;

[0014] On the radial two sides symmetrically extending along the axial other end of the second connecting body, there are second connecting lugs;

[0015] On the radial two sides symmetrically extending along the axial one end of the third connecting body, there are second hole columns that cooperate with the second connecting lugs;

[0016] On the radial two sides symmetrically extending along the axial other end of the third connecting body, there are third connecting lugs;

[0017] On the radial two sides symmetrically extending along the fourth connecting body, there are third hole columns that cooperate with the third connecting lugs.

[0018] In an embodiment of the present utility model, between the first connecting lug and the first hole column, between the second connecting lug and the second hole column, and between the third connecting lug and the third hole column, they are all connected by fastening screws.

[0019] In an embodiment of the present utility model, the first hole column and the second connecting lug are arranged in a 90° stagger in the circumferential direction of the second connecting body.

[0020] In an embodiment of the present utility model, the second hole column and the third connecting lug are arranged in a 90° stagger in the circumferential direction of the third connecting body.

[0021] In an embodiment of the present utility model, the nozzle includes a connecting disc installed at the axial one end of the first connecting body away from the second connecting body and a nozzle body extending from the connecting disc towards the direction of the mixing cavity.

[0022] In an embodiment of the present utility model, the diffuser cavity is in a gradually expanding conical shape along the direction away from the mixing cavity.

[0023] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0024] The ejector of the present utility model is a split - combined type, adopting a split structure, including independent components such as a first connection body, a second connection body, a third connection body, a fourth connection body, and a nozzle. Each component is a separate part, capable of modular design according to different specifications, and can quickly replace and combine different modules to adapt to diverse application requirements, improving the adaptability and flexibility of the product, enabling the ejector to quickly adapt to different market demands. Since the connection bodies can be detachably connected, when a part needs to be modified or repaired, the component that needs to be changed can be separately disassembled and replaced without replacing the entire ejector, which greatly simplifies the maintenance process, reduces the manufacturing cost, and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments of the present utility model in conjunction with the attached drawings.

[0026] Figure 1 is an axonometric structural schematic diagram of the split - combined type ejector of the present utility model.

[0027] Figure 2 is a sectional structural schematic diagram of the split - combined type ejector of the present utility model.

[0028] Explanation of the reference numerals in the drawings:

[0029] 1. First connection body; 11. Suction cavity; 12. Entrance of the entrained air flow; 13. First connection lug;

[0030] 2. Second connection body; 21. Mixing cavity; 22. First hole column; 23. Second connection lug;

[0031] 3. Third connection body; 31. Diffuser cavity; 32. Second hole column; 33. Third connection lug;

[0032] 4. Fourth connection body; 41. Air flow outlet; 42. Third hole column;

[0033] 5. Nozzle; 51. Connection disk; 52. Nozzle body;

[0034] 6. Fastening screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the examples given are not intended to limit the present utility model.

[0036] In the present utility model, when directions (up, down, left, right, front and back) are described, it is only for facilitating the description of the technical solution of the present utility model, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0037] In the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "exceeding", etc. are understood not to include the original number; "above", "below", "within", etc. are understood to include the original number. In the description of the present utility model, if "first" and "second" are described, they are only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the connection inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0039] Refer to Figure 1 、 Figure 2 As shown in the figure, a split and combined ejector of the present utility model includes:

[0040] A first connecting body 1, in which an inhalation cavity 11 is provided inside the first connecting body 1, and an entrained air flow inlet 12 communicating with the inhalation cavity 11 is provided along its radial side wall;

[0041] A second connecting body 2, in which a mixing cavity 21 communicating with the inhalation cavity 11 is provided through its axis;

[0042] A third connecting body 3, in which a diffuser cavity 31 communicating with the mixing cavity 21 is provided through its axis;

[0043] A fourth connecting body 4, in which an air flow outlet 41 communicating with the diffuser cavity 31 is provided through its axis;

[0044] A nozzle 5, installed in the inhalation cavity 11 and used for introducing the main entraining air flow;

[0045] Among them, the first connecting body 1 and the second connecting body 2, the second connecting body 2 and the third connecting body 3, and the third connecting body 3 and the fourth connecting body 4 are detachably connected to each other.

[0046] In one embodiment, first connecting lugs 13 symmetrically extend along both radial sides of the first connecting body 1;

[0047] First hole columns 22 that cooperate with the first connecting lugs 13 symmetrically extend along both radial sides of one axial end of the second connecting body 2;

[0048] Second connecting lugs 23 symmetrically extend along both radial sides of the other axial end of the second connecting body 2;

[0049] Second hole columns 32 that cooperate with the second connecting lugs 23 symmetrically extend along both radial sides of one axial end of the third connecting body 3;

[0050] Third connecting lugs 33 symmetrically extend along both radial sides of the other axial end of the third connecting body 3;

[0051] Third hole columns 42 that cooperate with the third connecting lugs 33 symmetrically extend along both radial sides of the fourth connecting body 4.

[0052] Specifically, the first connecting lugs 13 and the first hole columns 22, the second connecting lugs 23 and the second hole columns 32, and the third connecting lugs 33 and the third hole columns 42 are all connected by fastening screws 6.

[0053] By using the cooperation of lugs and hole columns and fixing with fastening screws 6, the connection between each module is ensured to be firm, enhancing the overall stability and reliability of the system and reducing the risk of loosening or leakage caused by vibration or long-term use.

[0054] In one embodiment, the first hole columns 22 and the second connecting lugs 23 are arranged staggeredly at 90° in the circumferential direction of the second connecting body 2.

[0055] The second hole columns 32 and the third connecting lugs 33 are arranged staggeredly at 90° in the circumferential direction of the third connecting body 3.

[0056] In one embodiment, the nozzle 5 includes a connection disk 51 installed at one axial end of the first connecting body 1 away from the second connecting body 2 and a nozzle body 52 extending from the connection disk 51 towards the direction of the mixing cavity 21.

[0057] In one embodiment, the diffuser cavity 31 is in a gradually expanding conical shape along the direction away from the mixing cavity 21.

[0058] With the above settings, the nozzle 5 is installed in the suction cavity 11 and is connected and cooperatively installed with the mixing cavity 21, the diffuser cavity 31, and the air flow outlet 41 in sequence. Finally, each part is fixed and locked by the fastening screw 6. The first connecting body 1, the second connecting body 2, the third connecting body 3, and the fourth connecting body 4 of the split-combined ejector are all independent parts and can be modularly designed according to different specifications, facilitating rapid model change and combination.

[0059] In addition, the nozzle 5, the mixing cavity 21, the diffuser cavity 31, and the air flow outlet 41 can be reconfigured and combined according to new application requirements, further improving the adaptability and flexibility of the ejector.

[0060] The working principle of the present utility model is as follows:

[0061] As shown in the figure, the main ejector air flow enters the inside of the suction cavity 11 through the nozzle 5, guiding the entrained air flow to also enter the suction cavity 11. After the two air flows are mixed in the suction cavity 11, they enter the mixing cavity 21, then flow into the diffuser cavity 31, where expansion occurs, and finally are transported to the target position through the air flow outlet 41. When it is necessary to change or repair a certain part of the ejector, the corresponding component can be disassembled to separately replace or repair the required part.

[0062] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model and are not restrictive. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A split combined ejector, characterized in that: include: A first connecting body (1), wherein a suction cavity (11) is provided inside the first connecting body (1) and an induced air flow inlet (12) communicating with the suction cavity (11) is provided along a radial side wall thereof; The second connecting body (2) is provided with a mixing cavity (21) extending through the second connecting body (2) along its axial direction and communicating with the suction cavity (11); A third connecting body (3), having a diffuser cavity (31) extending through the third connecting body (3) along its axial direction and communicating with the mixing cavity (21); A fourth connecting body (4) is provided with an air flow outlet (41) extending through the fourth connecting body along its axial direction and communicating with the diffuser cavity (31); A nozzle (5) is installed in the suction cavity (11) and is used to introduce a main jet airflow; The first connector (1) and the second connector (2), the second connector (2) and the third connector (3), and the third connector (3) and the fourth connector (4) are all detachably connected.

2. A split combined ejector according to claim 1, characterized in that: First connecting lugs (13) extend symmetrically along both radial sides of the first connecting body (1); A first hole column (22) is symmetrically extended along two radial sides of one axial end of the second connecting body (2) and is matched with the first connecting lug (13); Second connecting lugs (23) extend symmetrically on both radial sides of the other axial end of the second connecting body (2); A second hole column (32) matching with the second connecting lug (23) extends symmetrically along both radial sides of one axial end of the third connecting body (3); Third connecting lugs (33) extend symmetrically on both radial sides of the other axial end of the third connecting body (3); A third hole column (42) that cooperates with the third connecting lug (33) extends symmetrically along both radial sides of the fourth connecting body (4).

3. A split combined ejector according to claim 2, characterized in that: The first connecting lug (13) and the first hole column (22), the second connecting lug (23) and the second hole column (32), and the third connecting lug (33) and the third hole column (42) are all connected via fastening screws (6).

4. The split combined ejector according to claim 2, characterized in that: The first hole columns (22) and the second connecting lugs (23) are arranged alternately at 90 degrees in the circumferential direction of the second connecting body (2).

5. A split combined ejector according to claim 2 or 4, characterized in that: The second hole columns (32) and the third connecting lugs (33) are arranged alternately at 90° in the circumferential direction of the third connecting body (3).

6. The split combined ejector according to claim 1, characterized in that: The nozzle (5) comprises a connection disk (51) mounted on an axial end of the first connection body (1) away from the second connection body (2), and a nozzle body (52) extending from the connection disk (51) in a direction toward the mixing chamber (21).

7. The split combined ejector according to claim 1, characterized in that: The diffuser cavity (31) is in a gradually expanding cone shape in a direction away from the mixing cavity (21).

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