A rotary cutting enhanced ejector

Abstract

The present invention provides a rotary shear enhanced ejector, comprising an ejected medium suction mixing component (1) and an ejecting medium component (2), wherein the ejected medium suction mixing component (1) is of a cylindrical structure, and the ejecting medium component (2) comprises an ejecting medium main pipe (21) and a rotary ejecting medium branch pipe (23) arranged in sequence, wherein the outlet end of the rotary ejecting medium branch pipe (23) is located in the ejected medium suction mixing component (1), and the outlet end of the rotary ejecting medium branch pipe (23) faces the outlet end of the ejected medium suction mixing component (1), and the rotary ejecting medium branch pipe (23) can eject a spirally advancing medium flow. The rotary shear enhanced ejector has a good ejection function, and a fluid with a low pressure can also be used as an ejection medium. Not only can the ejection function be realized without the need for additional energy, but also the ejection medium and the ejected medium can be evenly mixed.

Description

Technical Field

[0001] The invention relates to a rotary cutting enhanced ejector. Background Art

[0002] An ejector is a device that uses a high-speed, high-energy flow (liquid flow, air flow or other material flow) to eject another low-speed, low-energy flow. The high-speed, high-energy flow bursts into the mixing chamber through a contracting nozzle, surrounded by the ejected flow. Through the mixing effect of the boundary, the ejected flow transfers energy to the ejected flow. The mixing zone formed by the mixing gradually expands and fills the entire mixing chamber. After a period of mixing, the flow becomes almost a uniform flow at the outlet of the mixing chamber. There is usually a diffuser at the back to reduce the flow rate and increase the static pressure. The ejector nozzle can be in the center of the pipeline or around the pipeline. In a gas flow system (such as a high-speed wind tunnel), the ejector acts as a power source to do work on the ejected gas and increase its energy. However, ejectors in the prior art usually have problems such as low ejection capacity and uneven fluid mixing. Summary of the invention

[0003] In order to solve the problem of low ejection capacity of existing ejectors, the present invention provides a rotary cutting enhanced ejector, which has better ejection function, and fluid with not very high pressure can also be used as ejection medium. Not only can the ejection function be achieved without additional energy, but also the ejection medium and the ejected medium can be evenly mixed.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A rotary cutting enhanced ejector comprises an ejected medium suction mixing component and an ejecting medium component. The ejected medium suction mixing component is a cylindrical structure. The ejecting medium component comprises an ejecting medium main pipe and a rotary jet ejecting medium branch pipe which are arranged in sequence. The outlet end of the rotary jet ejecting medium branch pipe is located in the ejected medium suction mixing component. The outlet end of the rotary jet ejecting medium branch pipe faces the outlet end of the ejected medium suction mixing component. The rotary jet ejecting medium branch pipe can eject a spirally advancing medium flow.

[0006] The medium injection component contains a plurality of rotary jet medium branch pipes and a plurality of direct jet medium branch pipes. The injection direction of the direct jet medium branch pipes is arranged parallel to the axial direction of the injected medium suction mixing component. Along the circumferential direction of the injected medium suction mixing component, the rotary jet medium branch pipes and the direct jet medium branch pipes are arranged alternately.

[0007] The outlet ends of the plurality of direct-injection medium branch pipes are all located on the first inner circle, and the outlet ends of the plurality of rotary-injection medium branch pipes are all located on the second inner circle. The diameter of the first inner circle is smaller than or larger than the diameter of the second inner circle.

[0008] The plane where the first inner circle is located and the plane where the second inner circle is located are both perpendicular to the axis of the medium suction mixing component, the plane where the first inner circle is located coincides with the plane where the second inner circle is located, or the first inner circle is located between the outlet end of the medium suction mixing component and the second inner circle, or the second inner circle is located between the outlet end of the medium suction mixing component and the first inner circle.

[0009] The angle between the injection direction of the rotary jet medium branch pipe and the axial direction of the injected medium inhaled into the mixing component is 15°-45°, and the angle between the injection direction of the rotary jet medium branch pipe and the diameter direction of the injected medium inhaled into the mixing component is 15°-45°.

[0010] Along the spraying direction of the rotary jet medium branch pipe, the distance between the rotary jet medium branch pipe and the axis of the mixed component into which the injected medium is sucked gradually decreases.

[0011] The rotary jet medium branch pipe and the direct jet medium branch pipe are both connected to the jet medium main pipe through the jet medium ring pipe, and the jet medium ring pipe is sleeved outside the jet medium suction mixing component.

[0012] The outlets of the rotary jet medium branch pipe and the direct jet medium branch pipe are provided with an ejection medium nozzle, and the ejection medium nozzle contains an ejection medium introduction section, an ejection medium contraction section and an ejection medium expansion section which are sequentially arranged along the axial direction.

[0013] The ejected medium suction mixing component comprises an ejected medium entrance section, an inlet expansion section, an introduction section, a diameter reduction section, a mixing section, a diameter expansion section and an exit section which are arranged in sequence along the axial direction. The ejected medium entrance section corresponds to the inlet end of the ejected medium suction mixing component, and the exit section corresponds to the outlet end of the ejected medium suction mixing component.

[0014] The rotary jet medium branch pipe and the direct jet medium branch pipe both pass through the inlet expansion section. The inlet section is provided with a purge port and a first pressure measuring port, the outlet section is provided with a venting port and a second pressure measuring port, and the reduced diameter section and the expanded diameter section are provided with lifting ears.

[0015] The beneficial effects of the present invention are as follows: the rotary cutting enhanced ejector has a good ejection function, and a fluid with a low pressure can also be used as an ejection medium. Not only can the ejection function be achieved without additional energy, but also the ejection medium and the ejected medium can be evenly mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1It is a left side schematic diagram of the rotary cutting enhanced ejector described in the present invention.

[0018] Figure 2 is along Figure 1 Schematic diagram of the DD direction.

[0019] Figure 3 It is a schematic diagram of the ejected medium being sucked into the mixing component.

[0020] Figure 4 It is a schematic diagram of the ejection medium components.

[0021] Figure 5 It is a schematic diagram of the main view of the injection medium nozzle.

[0022] Figure 6 It is a schematic diagram showing that the distance from the first inner circle to the outlet end of the mixed component into which the ejected medium is sucked is smaller than the distance from the second inner circle to the outlet end of the mixed component into which the ejected medium is sucked.

[0023] Figure 7 It is a schematic diagram showing that the distance from the first inner circle to the outlet end of the mixed component into which the ejected medium is sucked is greater than the distance from the second inner circle to the outlet end of the mixed component into which the ejected medium is sucked.

[0024] 1. The ejected medium is sucked into the mixing component; 2. The ejected medium component;

[0025] 11. Inlet section for the ejected medium; 12. Inlet expansion section; 13. Inlet section; 14. Diameter reduction section; 15. Mixing section; 16. Diameter expansion section; 17. Outlet section; 18. First inner circle; 19. Second inner circle; 110. Purge port; 111. First pressure measuring port; 112. Lifting lug; 113. Release port; 114. Second pressure measuring port;

[0026] 21. Injection medium main pipe; 22. Injection medium ring pipe; 23. Rotary injection injection medium branch pipe; 24. Direct injection injection medium branch pipe; 25. Injection medium nozzle;

[0027] 251. Introducing section in the ejection medium; 252. Contraction section in the ejection medium; 253. Diffusion section in the ejection medium. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] A rotary cutting enhanced ejector comprises an ejected medium suction mixing component 1 and an ejecting medium component 2, wherein the ejected medium suction mixing component 1 is a cylindrical structure, and the ejecting medium component 2 comprises an ejecting medium main pipe 21 and a rotary jet ejecting medium branch pipe 23 which are arranged in sequence, and the outlet end of the rotary jet ejecting medium branch pipe 23 is located in the ejected medium suction mixing component 1, and the outlet end of the rotary jet ejecting medium branch pipe 23 faces the outlet end of the ejected medium suction mixing component 1, and the ejection direction of the rotary jet ejecting medium branch pipe 23 is not in the same plane as the axis of the ejected medium suction mixing component 1, and the medium flow ejected by the rotary jet ejecting medium branch pipe 23 can spirally advance, such as Figures 1 to 4 shown.

[0030] In the present invention, the medium flow ejected from the rotary jet medium branch pipe 23 can advance in a spiral, and the ejecting medium can produce a rotating cutting and mixing effect on the ejected medium, so that the ejection function can be achieved without additional energy, and a more uniform mixing of the ejecting medium and the ejected medium can be achieved.

[0031] The rotary cutting enhanced ejector comprises an ejection medium inlet end a, an ejected medium inlet end b and a mixed medium outlet end c. The ejection medium inlet end a is the inlet end of the ejection medium main pipe 21, the ejected medium inlet end b is the inlet end of the ejected medium suction mixing component 1, and the mixed medium outlet end c is the outlet end of the ejected medium suction mixing component 1.

[0032] In this embodiment, the ejection medium component 2 includes a plurality of rotary ejection medium branch pipes 23 and a plurality of direct ejection medium branch pipes 24. The ejection direction of the direct ejection medium branch pipes 24 is arranged parallel to the axial direction of the ejected medium suction mixing component 1. Along the circumferential direction of the ejected medium suction mixing component 1, the rotary ejection medium branch pipes 23 and the direct ejection medium branch pipes 24 are alternately arranged at even intervals, such as Figure 1 shown.

[0033] In this embodiment, the outlet ends of the direct injection medium branch pipe 24 and the outlet ends of the rotary injection medium branch pipe 23 are arranged in two layers, that is, the outlet ends (midpoints or centers) of the multiple direct injection medium branch pipes 24 are all located on the first inner circle 18, and the outlet ends (midpoints or centers) of the multiple rotary injection medium branch pipes 23 are all located on the second inner circle 19. The diameter of the first inner circle 18 is smaller than or larger than the diameter of the second inner circle 19. Preferably, the diameter of the first inner circle 18 is smaller than the diameter of the second inner circle 19. Figure 1 shown.

[0034] In this embodiment, the plane where the first inner circle 18 is located and the plane where the second inner circle 19 is located are both perpendicular to the axis of the induced medium sucked into the mixing component 1, and the plane where the first inner circle 18 is located and the plane where the second inner circle 19 is located are roughly coincident. Figure 1 and Figure 2 shown.

[0035] For example, the ejection medium component 2 includes four direct ejection medium branches 24 and four rotary ejection medium branches 23, the outlet ends (midpoints or centers) of the four direct ejection medium branches 24 are all located on the first inner circle 18, the outlet ends (midpoints or centers) of the four rotary ejection medium branches 23 are located on the second inner circle 19, the diameter of the first inner circle 18 is smaller than the diameter of the second inner circle 19, the centers of the first inner circle 18 and the second inner circle 19 coincide with the axis of the ejected medium suction mixing component 1, and the plane where the first inner circle 18 and the plane where the second inner circle 19 are located are both perpendicular to the axis of the ejected medium suction mixing component 1, such as Figures 1 to 4 shown.

[0036] In this embodiment, the angle α between the injection direction of the rotary jet medium branch pipe 23 and the axial direction of the injected medium sucked into the mixing component 1 can be 15°-45° (such as 30°). Figure 2 As shown, the angle β between the injection direction of the rotary jet medium branch pipe 23 and the diameter direction of the injected medium sucked into the mixing component 1 can be 15°-45° (such as 30°). Figure 1 Along the spraying direction of the rotary jet medium branch pipe 23, the distance between the rotary jet medium branch pipe 23 and the axis of the injected medium sucked into the mixing component 1 can be gradually reduced.

[0037] In this embodiment, the rotary jet medium branch pipe 23 and the direct jet medium branch pipe 24 are connected to the jet medium main pipe 21 through the jet medium ring pipe 22, and the jet medium ring pipe 22 is sleeved outside the jet medium suction mixing component 1. The jet medium main pipe 21, the jet medium ring pipe 22, the rotary jet medium branch pipe 23 and the direct jet medium branch pipe 24 are arranged in sequence along the axial direction of the jet medium suction mixing component 1.

[0038] In this embodiment, the outlet of the rotary jet medium branch pipe 23 and the outlet of the direct jet medium branch pipe 24 are provided with an ejection medium nozzle 25, and the ejection medium nozzle 25 contains an ejection medium internal introduction section 251, an ejection medium internal contraction section 252 and an ejection medium internal expansion section 253 which are sequentially arranged along the axial direction. Figure 5 It can be understood that the ejection medium nozzle 25 is a part of the rotary jet ejection medium branch pipe 23 and the direct jet ejection medium branch pipe 24, the outlet end of the ejection medium nozzle 25 on the rotary jet ejection medium branch pipe 23 is the outlet end of the rotary jet ejection medium branch pipe 23, and the outlet end of the ejection medium nozzle 25 on the direct jet ejection medium branch pipe 24 is the outlet end of the direct jet ejection medium branch pipe 24.

[0039] In this embodiment, the ejected medium suction mixing component 1 includes an ejected medium entrance section 11, an inlet expansion section 12, an introduction section 13, a diameter reduction section 14, a mixing section 15, an expansion section 16 and an outlet section 17 which are arranged in sequence along the axial direction. The ejected medium entrance section 11 corresponds to the inlet end of the ejected medium suction mixing component 1, and the outlet section 17 corresponds to the outlet end of the ejected medium suction mixing component 1.

[0040] The ejected medium entry section 11, the introduction section 13, the mixing section 15 and the exit section 17 are all of equal diameter structures. Along the direction from the inlet end where the ejected medium is sucked into the mixing component 1 to the outlet end where the ejected medium is sucked into the mixing component 1, the inner diameter of the inlet expansion section 12 gradually increases, the inner diameter of the diameter reduction section 14 gradually decreases, and the inner diameter of the diameter expansion section 16 gradually increases.

[0041] The outlet end of the rotary jet medium branch pipe 23 and the outlet end of the direct jet medium branch pipe 24 are both located within the introduction section 13, so that the reduced diameter section 14 can be fully utilized. Preferably, the outlet end of the rotary jet medium branch pipe 23 and the outlet end of the direct jet medium branch pipe 24 are both located at the connection between the introduction section 13 and the reduced diameter section 14.

[0042] In this embodiment, the rotary jet medium branch pipe 23 and the direct jet medium branch pipe 24 both pass through the inlet expansion section 12, the inlet section 13 is provided with a purge port 110 and a first pressure measuring port 111, the outlet section 17 is provided with a release port 113 and a second pressure measuring port 114, and the reduced diameter section 14 and the expanded diameter section 16 are provided with a lifting lug 112. The reduced diameter section 14 and the expanded diameter section 16 are both provided with a lifting lug 112, and the lifting lug 112 is provided on the rotary cutting enhanced ejector, which can facilitate the transportation, installation and use of the ejector.

[0043] The working process of the rotary cutting enhanced ejector is introduced below.

[0044] The high-pressure ejection medium enters the rotary cutting enhanced ejector from the ejection medium inlet end a, and the low-pressure ejected medium enters the rotary cutting enhanced ejector from the ejected medium inlet end b. The high-pressure ejection medium is mixed with the low-pressure ejected medium and then discharged from the mixed medium outlet end c.

[0045] Specifically, the high-pressure ejection medium (for example, 220 KPa) enters the annular ejection medium ring pipe 22 through the ejection medium main pipe 21, and the ejection medium nozzle 25 is installed at the outlet of the rotary jet ejection medium branch pipe 23. The high-pressure ejection medium (for example, 220 KPa) enters the ejection medium nozzle 25 through the rotary jet ejection medium branch pipe 23, enters the ejection medium internal contraction section 252 through the ejection medium internal introduction section 251, overcomes the channel resistance loss and obtains a certain speed to enter the ejection medium internal expansion section 253. The high-pressure ejection medium (for example, 220 KPa) further increases the pressure (for example, 300 KPa) under the action of the ejection medium expansion section, which is beneficial to improving the working efficiency of the rotary cutting enhanced ejector, and can use the ejection medium with not very high pressure to efficiently realize the ejection function.

[0046] The pressurized high-pressure ejection medium (e.g., 300KPa) and the low-pressure ejection medium (e.g., 15KPa) enter the reduced diameter section 14 through the introduction section 13 to form a mixed medium. The ejection direction of the rotary ejection medium branch pipe 23 is not in the same plane as the axis of the ejection medium inhaled into the mixing component 1. The medium flow ejected from the rotary ejection medium branch pipe 23 advances in a spiral (or rotates forward). The spirally advancing high-pressure ejection medium has a rotary cutting effect on the linearly advancing low-pressure ejection medium, which can not only fully utilize the energy of the high-pressure ejection medium to improve the ejection efficiency, but also achieve a more complete mixing of the ejection medium and the ejection medium.

[0047] Under the action of the reducing section 14, the mixed medium overcomes the channel resistance loss and obtains a certain speed to enter the mixing section 15; the high-pressure ejecting medium (for example, 300KPa) and the low-pressure ejected medium (for example, 15KPa) are fully mixed in the mixing section 15 and then enter the expanding section 16. The uniform mixed medium has its pressure increased (for example, 50KPa) under the action of the expanding section 16 and is discharged from the ejector through the outlet section 17.

[0048] A purge port 110 and a first pressure measuring port 111 are respectively provided in the introduction section 13. The purge port 110 can introduce a purge medium to purge and clean the introduction section 13. A pressure sensor is installed in the first pressure measuring port 111 to measure the internal pressure of the introduction section 13. A discharge port 113 and a second pressure measuring port 114 are respectively provided in the outlet section 17. The discharge port 113 can be discharged in special circumstances (for example, when the internal pressure of the ejector exceeds the allowable value) to ensure system safety. A pressure sensor is installed in the second pressure measuring port 114 to measure the internal pressure of the outlet section 17.

[0049] In addition, the present embodiment can also make the following changes to the positions of the outlet ends of the rotary jet medium branch pipe 23 and the direct jet medium branch pipe 24:

[0050] For example, the distance from the outlet end of all the direct-injection medium branch pipes 24 located on the first inner circle 18 to the outlet end of the injected medium suction mixing component 1 is smaller than the distance from the outlet end of all the rotary-injection medium branch pipes 23 located on the second inner circle 19 to the outlet end of the injected medium suction mixing component 1, that is, the plane where the first inner circle 18 is located is parallel to the plane where the second inner circle 19 is located and is spaced apart, the distance from the first inner circle 18 to the outlet end of the injected medium suction mixing component 1 is smaller than the distance from the second inner circle 19 to the outlet end of the injected medium suction mixing component 1, the first inner circle 18 is located between the outlet end of the injected medium suction mixing component 1 and the second inner circle 19, and the plane where the first inner circle 18 is located and the plane where the second inner circle 19 is located are both perpendicular to the axis of the injected medium suction mixing component 1, such as Figure 6 According to production conditions, the distance between the plane where the first inner circle 18 is located and the plane where the second inner circle 19 is located can be reasonably set to achieve graded injection of the ejecting medium to the ejected medium and graded mixing of the two media, which is beneficial to improving the injection effect and promoting the full mixing of the two media.

[0051] Alternatively, the distance from the outlet end of all the direct-injection medium branch pipes 24 located on the first inner circle 18 to the outlet end of the injected medium suction mixing component 1 is smaller than the distance from the outlet end of all the rotary-injection medium branch pipes 23 located on the second inner circle 19 to the outlet end of the injected medium suction mixing component 1, that is, the plane where the first inner circle 18 is located is parallel to the plane where the second inner circle 19 is located and is spaced apart, the distance from the first inner circle 18 to the outlet end of the injected medium suction mixing component 1 is greater than the distance from the second inner circle 19 to the outlet end of the injected medium suction mixing component 1, the second inner circle 19 is located between the outlet end of the injected medium suction mixing component 1 and the first inner circle 18, and the plane where the first inner circle 18 is located and the plane where the second inner circle 19 is located are both perpendicular to the axis of the injected medium suction mixing component 1, as Figure 7 shown.

[0052] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with technical features and technical solutions, and with technical solutions.

Claims

1. A rotary cutting enhanced ejector, characterized in that: The rotary cutting enhanced ejector comprises an ejected medium suction mixing component (1) and an ejecting medium component (2), wherein the ejected medium suction mixing component (1) is of a cylindrical structure, and the ejecting medium component (2) comprises an ejecting medium main pipe (21) and a rotary ejecting medium branch pipe (23) arranged in sequence, wherein the outlet end of the rotary ejecting medium branch pipe (23) is located in the ejected medium suction mixing component (1), and the outlet end of the rotary ejecting medium branch pipe (23) faces the outlet end of the ejected medium suction mixing component (1), and the rotary ejecting medium branch pipe (23) can eject a spirally advancing medium flow; The ejection medium component (2) comprises a plurality of rotary ejection medium branch pipes (23) and a plurality of direct ejection medium branch pipes (24); the ejection direction of the direct ejection medium branch pipes (24) is arranged parallel to the axial direction of the ejected medium suction mixing component (1); and along the circumferential direction of the ejected medium suction mixing component (1), the rotary ejection medium branch pipes (23) and the direct ejection medium branch pipes (24) are arranged alternately; The angle between the spray direction of the rotary jet medium branch pipe (23) and the axial direction of the medium sucked into the mixing component (1) is 15°-45°, and the angle between the spray direction of the rotary jet medium branch pipe (23) and the diameter direction of the medium sucked into the mixing component (1) is 15°-45°; The outlet of the rotary jet medium branch pipe (23) and the outlet of the direct jet medium branch pipe (24) are both provided with an ejection medium nozzle (25), and the ejection medium nozzle (25) contains an ejection medium internal introduction section (251), an ejection medium internal contraction section (252) and an ejection medium internal expansion section (253) which are sequentially arranged along the axial direction.

2. The rotary cutting enhanced ejector according to claim 1, characterized in that: The outlet ends of the plurality of direct-injection medium branch pipes (24) are all located on the first inner circle (18), and the outlet ends of the plurality of rotary-injection medium branch pipes (23) are all located on the second inner circle (19); the diameter of the first inner circle (18) is smaller than or larger than the diameter of the second inner circle (19).

3. The rotary cutting enhanced ejector according to claim 2, characterized in that: The plane where the first inner circle (18) is located and the plane where the second inner circle (19) is located are both perpendicular to the axis of the ejected medium inhalation mixing component (1), the plane where the first inner circle (18) is located and the plane where the second inner circle (19) is located coincide with each other, or the first inner circle (18) is located between the outlet end of the ejected medium inhalation mixing component (1) and the second inner circle (19), or the second inner circle (19) is located between the outlet end of the ejected medium inhalation mixing component (1) and the first inner circle (18).

4. The rotary cutting enhanced ejector according to claim 1, characterized in that: Along the spraying direction of the rotary jet medium branch pipe (23), the distance between the rotary jet medium branch pipe (23) and the axis of the mixed component (1) through which the injected medium is sucked gradually decreases.

5. The rotary cutting enhanced ejector according to claim 1, characterized in that: The rotary jet medium branch pipe (23) and the direct jet medium branch pipe (24) are both connected to the jet medium main pipe (21) via the jet medium ring pipe (22), and the jet medium ring pipe (22) is sleeved outside the jet medium suction mixing component (1).

6. The rotary cutting enhanced ejector according to claim 2, characterized in that: The ejected medium suction mixing component (1) comprises an ejected medium entrance section (11), an inlet expansion section (12), an introduction section (13), a diameter reduction section (14), a mixing section (15), an expansion section (16) and an exit section (17) which are arranged in sequence along the axial direction. The ejected medium entrance section (11) corresponds to the inlet end of the ejected medium suction mixing component (1), and the exit section (17) corresponds to the outlet end of the ejected medium suction mixing component (1).

7. The rotary cutting enhanced ejector according to claim 6, characterized in that: The rotary jet medium branch pipe (23) and the direct jet medium branch pipe (24) both pass through the inlet expansion section (12); the inlet section (13) is provided with a purge port (110) and a first pressure measuring port (111); the outlet section (17) is provided with a venting port (113) and a second pressure measuring port (114); and the reduced diameter section (14) and the expanded diameter section (16) are both provided with lifting ears (112).

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