An easily adjustable wide flow ratio ejector

Abstract

The present invention relates to the technical field of ejectors, and specifically discloses an ejector with a wide flow ratio that is easy to adjust, which is used to solve the problem of single adjustment in the prior art; the ejector comprises a first pipe body and a second pipe body, the exhaust end of the second pipe body is provided with an exhaust pipe section, and a contracting conical section is between the exhaust pipe section and the second pipe body. The other end of the exhaust pipe section is connected to the expansion pipe section, and the second pipe body is connected to the first pipe body by a connecting piece. The outside of the first pipe body is connected to a high-pressure air intake pipe, and the outside of the second pipe body is connected to a low-pressure air intake pipe. The present invention is adjusted according to existing needs, and the equipment can be disassembled and assembled to facilitate later maintenance. The ventilation cross-section of the air intake position can also be adjusted, and the low-pressure air intake position can also be adjusted. The two do not interfere with each other, thereby meeting the use of different positions.

Description

Technical Field

[0001] The present invention relates to the technical field of ejector equipment, and in particular to an ejector with a wide flow ratio that is easy to adjust. Background Art

[0002] Methane is a widely distributed natural gas resource on Earth. Venting methane can cause a series of environmental and health hazards and has a higher greenhouse effect than carbon dioxide. In terms of methane recovery, the application of ejectors can achieve methane recovery by mixing gases, introducing methane into other fluids, or changing the flow pattern of gases.

[0003] Patent publication number CN11224031B discloses an adjustable ejector, wherein a rotary regulator can be used to adjust the intake volume of the ejector fluid inlet and the ejected gas fluid inlet of each sub-ejector, or to shut down one or more sub-ejectors. Furthermore, the regulator can be used to adjust the number of sub-ejectors in operation or the operating state of a single sub-ejector based on changes in inlet pressure and flow rate. This allows the entire ejector to maintain good ejection efficiency and improve its adaptability to varying ejection fluid flow rates and pressures, as well as to varying operating conditions.

[0004] However, when adjusting the above-mentioned ejector, only the cross-section of the pressure inlet position can be adjusted, and the flow rate at the high-pressure position cannot be adjusted. In addition, the construction of multiple ejector structures will make the structure complicated and not conducive to subsequent maintenance operations.

[0005] Based on this, an easily adjustable wide flow ratio ejector is now provided to eliminate the drawbacks of the existing device. Summary of the Invention

[0006] The purpose of the present invention is to provide an ejector with a wide flow ratio that is easy to adjust, thereby solving the problem of single adjustment in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An easily adjustable wide flow ratio ejector comprises a first tube body and a second tube body, an exhaust pipe section is provided at the exhaust end of the second tube body, a contracting conical section is formed between the exhaust pipe section and the second tube body, the other end of the exhaust pipe section is connected to the expansion pipe section, the second tube body and the first tube body are connected by a connector, a high-pressure air intake pipe is connected to the outside of the first tube body, a low-pressure air intake pipe is connected to the outside of the second tube body, a central tube body is provided inside the first tube body and the second tube body, an air guide channel is provided in the central tube body, the end opening of the central tube body extends to the end position of the second tube body, the low-pressure air intake pipe is located upstream of the end of the air guide channel, and negative pressure regulating members for regulating the air intake pressure of the high-pressure air intake pipe are provided inside the second tube body and the first tube body;

[0009] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0010] In an optional scheme: the negative pressure regulating part includes a fixed pipe sleeve slidingly sleeved on the outside of the central pipe body, the fixed pipe sleeve corresponds to the position of the high-pressure air intake pipe, a sealing ring is provided at the end of the fixed pipe sleeve, and the sealing ring is slidably sealed with the inner wall of the first pipe body, a movable air hole is opened on the fixed pipe sleeve, and a fixed air hole corresponding to the movable air hole is provided on the surface of the air guide channel. The staggered range of the fixed air hole and the movable air hole constitutes the size of the high-pressure air inlet, and an adjusting pipe sleeve is provided for rotation inside the second pipe body where the low-pressure intake pipe is located, and a plurality of wire holes are distributed on the adjusting pipe sleeve, and the wire holes are long strip structures. The length of the adjusting pipe sleeve is greater than the diameter of the low-pressure intake pipe, and the inner side of the adjusting pipe sleeve is connected to the central pipe body through a plurality of connecting rods, and the first pipe body is provided with a plurality of pushing units that drive the position adjustment of the central pipe body.

[0011] In an optional solution: the pushing unit includes a rotating cylinder rotatably arranged at the end of the first tube body, the outer side of the rotating cylinder is connected to a rotating driving member for driving it to rotate, and the rotating cylinder is provided with an axial pushing member for driving the central tube body to move along the axis of the first tube body. The opening width of the movable air hole is greater than the width of the fixed air hole, so during the movement of the axis, the movable air hole always moves in the area where the fixed air hole is located.

[0012] In an optional solution: the axis pushing member includes an adjusting slide hole arranged at the inner end of the rotating cylinder, an adjusting slide plate is slidingly provided in the adjusting slide hole, the other end of the adjusting slide plate is connected to the middle position of the central tube body, a pushing screw hole is provided at the end of the adjusting slide plate, an adjusting screw is matched in the pushing screw hole, and the other end of the adjusting screw is connected to a first motor for driving it to rotate.

[0013] In an optional solution: the rotating drive member includes an adjusting worm gear arranged on the outside of the rotating cylinder, one side of the adjusting worm gear is engaged with the worm, the lower end of the worm is rotatably connected to the first fixed block on the outside of the first tube body, the other end of the first fixed block is connected to the output end of the second motor, the second motor is installed on the second fixed block on the outside of the first tube body, and the wire hole is a long strip structure.

[0014] In an optional solution: the connecting member includes a first flange plate arranged at the end of the first tube body and a second flange plate arranged at the end of the second tube body, multiple bolt holes are distributed on the second flange plate and the first flange plate, and a seal is also provided between the second flange plate and the first flange plate.

[0015] In an optional solution, the sealing member includes a positioning ring groove provided at the end of the first flange, and a sealing ring is provided in each positioning ring groove, and the thickness of the sealing ring is greater than the depth of the positioning ring groove.

[0016] In an optional solution, the width of the wire hole is no more than one millimeter.

[0017] In an optional solution: an adjustable strip is provided on the outside of the rotating cylinder.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is adjusted according to existing needs. The equipment can be disassembled and assembled to facilitate later maintenance. The ventilation cross-section of the air intake position can be adjusted, and the low-pressure suction position can also be adjusted. The two do not interfere with each other, thereby meeting the use of different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the pushing unit of the present invention.

[0023] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the adjusting sleeve structure of the present invention.

[0025] Reference numerals: first tube body 100, high-pressure air intake pipe 101;

[0026] The second pipe body 200, the low-pressure air intake pipe 201, the exhaust pipe section 202, and the expansion pipe section 203;

[0027] First flange 300, sealing ring 302, second flange 301;

[0028] Adjusting worm gear 401, rotating cylinder 402, first motor 403, first fixing block 404, worm 405, second fixing block 406, second motor 407, adjusting screw 408, adjusting sliding hole 409, adjusting slide plate 410;

[0029] Central tube body 501 , air guide channel 502 , fixed tube sleeve 504 , movable air hole 503 , fixed air hole 505 , blocking ring 506 , connecting rod 507 , adjusting tube sleeve 508 , and wire hole 509 . DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1-5 As shown, the embodiment of the present invention provides an easily adjustable wide flow ratio ejector, comprising a first tube body 100 and a second tube body 200, an exhaust pipe section 202 is provided at the exhaust end of the second tube body 200, a contracting conical section is formed between the exhaust pipe section 202 and the second tube body 200, the other end of the exhaust pipe section 202 is connected to the expansion pipe section 203, the second tube body 200 is connected to the first tube body 100 by a connector, a high-pressure air intake pipe 101 is connected to the outside of the first tube body 100, the other end of the high-pressure air intake pipe 101 is connected to the gas supply component to deliver the high-pressure gas into the device, and a low-pressure air intake pipe 101 is connected to the outside of the second tube body 200. Tube 201, the low-pressure intake pipe 201 is connected to the gas to be absorbed so as to absorb the target gas. A central tube body 501 is provided inside the first tube body 100 and the second tube body 200. An air guide channel 502 is provided in the central tube body 501. The end of the central tube body 501 extends to the end of the second tube body 200. The low-pressure intake pipe 201 is located upstream of the end of the air guide channel 502. A negative pressure regulating member for regulating the intake pressure of the high-pressure intake pipe 101 is provided inside the second tube body 200 and the first tube body 100. The flow rate of the inhaled gas is adjusted by the negative pressure regulating member to match different usage environments, which helps to improve the applicability of the device.

[0033] The negative pressure regulating member includes a fixed sleeve 504 that is slidably sleeved on the outside of the central tube body 501, the fixed sleeve 504 corresponds to the position of the high-pressure air intake pipe 101, a sealing ring 506 is provided at the end of the fixed sleeve 504, the sealing ring 506 is slidably sealed with the inner wall of the first tube body 100, an active air hole 503 is opened on the fixed sleeve 504, and a fixed air hole 505 corresponding to the active air hole 503 is provided on the surface of the air guide channel 502. The staggered range of the fixed air hole 505 and the active air hole 503 constitutes the size of the high-pressure air intake port. The second high-pressure air intake pipe 101 is located An adjusting sleeve 508 is rotatably provided inside the tube body 200. The adjusting sleeve 508 is provided with a plurality of thread holes 509. The thread holes 509 are elongated. The length of the adjusting sleeve 508 is greater than the diameter of the low-pressure intake pipe 201. The inner side of the adjusting sleeve 508 is connected to the central tube body 501 via a plurality of connecting rods 507. The first tube body 100 is provided with a plurality of driving units for driving the central tube body 501 to adjust its position. The driving units drive the central tube body 501 to rotate and slide axially, thereby fine-tuning the high-pressure intake position and the low-pressure intake position, thereby meeting the requirements of different occasions.

[0034] The pushing unit includes a rotating cylinder 402 rotatably arranged at the end of the first tube body 100, and a rotating driving member for driving the rotating cylinder 402 to rotate is connected to the outer side of the rotating cylinder 402. An axial pushing member is provided on the rotating cylinder 402 for driving the central tube body 501 to move along the axis of the first tube body 100. Under the action of the axial pushing member, the central tube body 501 moves along the axis. The opening width of the movable air hole 503 is greater than the width of the fixed air hole 505. Therefore, during the movement of the axis, the movable air hole 503 always moves in the area of ​​the fixed air hole 505, which will not affect the actual adjustment of the size of the air intake area. However, if the central tube body 501 rotates, the fixed air hole 505 and the movable air hole 503 will be staggered, which will have a greater impact on the actual ventilation cross-section. In this way, the two position adjustments are independent of each other, so that they can be adjusted separately.

[0035] The axis pushing member includes an adjusting slide hole 409 provided at the inner end of the rotating cylinder 402, an adjusting slide plate 410 slidingly provided in the adjusting slide hole 409, the other end of the adjusting slide plate 410 is connected to the middle position of the central tube body 501, a pushing screw hole is provided at the end of the adjusting slide plate 410, an adjusting screw 408 is matched in the pushing screw hole, the other end of the adjusting screw 408 is connected to the first motor 403 for driving the rotation thereof, under the drive of the first motor 403, the adjusting screw 408 and the adjusting slide plate 410 rotate relative to each other, under the action of the thread, the adjusting slide plate 410 slides along the adjusting slide hole 409, thereby causing the central tube body 501 to move along the axis of the first tube body 100, providing an axis thrust for adjustment;

[0036] The rotary drive member includes an adjusting worm gear 401 arranged on the outside of the rotating cylinder 402, one side of the adjusting worm gear 401 is meshed with a worm 405, the lower end of the worm 405 is rotatably connected to the first fixed block 404 on the outside of the first tube 100, the other end of the first fixed block 404 is connected to the output end of the second motor 407, and the second motor 407 is installed on the second fixed block 406 on the outside of the first tube 100. The worm 405 is driven to rotate by the second motor 407, and the worm 405 matches the adjusting worm gear 401, thereby driving the rotating cylinder 402 to rotate, thereby providing power for the rotation of the central tube 501. When the central tube 501 rotates, since the wire hole 509 is a long strip structure, its rotation has little effect on the intake cross-section of the high-pressure intake pipe 101. However, when the central tube 501 rotates, the staggered range between the fixed air hole 505 and the movable air hole 503 has a great influence, thereby adjusting the cross-section of the high-pressure intake.

[0037] The connector includes a first flange 300 provided at the end of the first tube body 100 and a second flange 301 provided at the end of the second tube body 200. A plurality of bolt holes are distributed on the second flange 301 and the first flange 300. A seal is further provided between the second flange 301 and the first flange 300. The first flange 300 and the second flange 301 are connected by a plurality of bolts, thereby achieving a detachable connection between the first tube body 100 and the second tube body 200, facilitating subsequent maintenance.

[0038] The seal comprises a positioning ring groove provided at the end of the first flange 300. A sealing ring 302 is provided in each positioning ring groove. The thickness of the sealing ring 302 is greater than the depth of the positioning ring groove. In this way, the position of the sealing ring 302 can be locked. The sealing ring 302 is pressed into contact with the second flange 301 and the first flange 300 to complete the sealing.

[0039] Working principle / working process. In actual use, the worm 405 is driven to rotate by the second motor 407, and the worm 405 is matched with the adjusting worm wheel 401, thereby driving the rotating cylinder 402 to rotate, thereby providing power for the rotation of the central tube body 501. When the central tube body 501 rotates, since the wire hole 509 is a long strip structure, its rotation has little effect on the intake cross-section of the high-pressure intake pipe 101. However, when the central tube body 501 rotates, the staggered range of the fixed air hole 505 and the movable air hole 503 has a great influence, thereby adjusting the cross-section of the high-pressure intake. Driven by the first motor 403, the adjusting screw 408 and the adjusting slide 410 rotate relative to each other. Under the action of the thread, the adjusting slide 410 will slide along the adjusting slide hole 409, thereby causing the central tube body 501 to move along the axis of the first tube body 100, providing axial thrust for the adjustment, so that the two position adjustments are independent of each other, so that they can be adjusted separately.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An easily adjustable wide flow ratio ejector, comprising a first tube body (100) and a second tube body (200), wherein an exhaust pipe section (202) is provided at an exhaust end of the second tube body (200), a contracting conical section is provided between the exhaust pipe section (202) and the second tube body (200), the other end of the exhaust pipe section (202) is connected to an expansion pipe section (203), and the second tube body (200) and the first tube body (100) are connected via a connector, characterized in that: The outside of the first tube body (100) is connected to a high-pressure air intake pipe (101), and the outside of the second tube body (200) is connected to a low-pressure air intake pipe (201). A central tube body (501) is provided inside the first tube body (100) and the second tube body (200). An air guide channel (502) is provided in the central tube body (501). The end of the central tube body (501) extends to the end of the second tube body (200). The low-pressure air intake pipe (201) is located upstream of the end of the air guide channel (502). A negative pressure regulating member for regulating the air intake pressure of the high-pressure air intake pipe (101) is provided inside the second tube body (200) and the first tube body (100). The negative pressure regulating member comprises a fixed sleeve (504) which is slidably sleeved on the outside of the central tube body (501), the fixed sleeve (504) corresponds to the position of the high-pressure air intake pipe (101), a sealing ring (506) is provided at the end of the fixed sleeve (504), the sealing ring (506) is slidably sealed with the inner wall of the first tube body (100), an active air hole (503) is provided on the fixed sleeve (504), and a fixed air hole (505) corresponding to the active air hole (503) is provided on the surface of the air guide channel (502), the fixed air hole (505) and the active air hole (503) are connected to each other. 3) The staggered range constitutes the size of the high-pressure air inlet. An adjusting sleeve (508) is provided inside the second tube body (200) where the low-pressure air intake pipe (201) is located. A plurality of wire holes (509) are distributed on the adjusting sleeve (508). The wire holes (509) are long strip structures. The length of the adjusting sleeve (508) is greater than the diameter of the low-pressure air intake pipe (201). The inner side of the adjusting sleeve (508) is connected to the central tube body (501) through a plurality of connecting rods (507). The first tube body (100) is provided with a plurality of pushing units for driving the position adjustment of the central tube body (501); The pushing unit includes a rotating cylinder (402) rotatably arranged at the end of the first tube body (100), the outer side of the rotating cylinder (402) is connected to a rotating driving member for driving the rotating cylinder (402), and an axis pushing member is provided on the rotating cylinder (402) for driving the central tube body (501) to move along the axis of the first tube body (100). The opening width of the movable air hole (503) is greater than the width of the fixed air hole (505), so that during the movement of the axis, the movable air hole (503) always moves in the area where the fixed air hole (505) is located.

2. The easily adjustable wide flow ratio ejector according to claim 1, characterized in that: The axis pusher includes an adjusting slide hole (409) arranged at the inner end of the rotating cylinder (402), an adjusting slide plate (410) slidingly provided in the adjusting slide hole (409), the other end of the adjusting slide plate (410) being connected to the middle position of the central tube body (501), a pushing screw hole being provided at the end of the adjusting slide plate (410), an adjusting screw rod (408) being matched in the pushing screw hole, and the other end of the adjusting screw rod (408) being connected to a first motor (403) for driving the adjusting screw rod to rotate.

3. The easily adjustable wide flow ratio ejector according to claim 1, characterized in that: The rotary drive member comprises an adjusting worm wheel (401) arranged outside the rotating cylinder (402), one side of the adjusting worm wheel (401) is meshed with a worm (405), the lower end of the worm (405) is rotatably connected to a first fixed block (404) outside the first tube (100), the other end of the first fixed block (404) is connected to the output end of a second motor (407), and the second motor (407) is mounted on a second fixed block (406) outside the first tube (100), and the wire hole (509) is a long strip structure.

4. The easily adjustable wide flow ratio ejector according to claim 1, characterized in that: The connecting member comprises a first flange (300) arranged at the end of the first tube body (100) and a second flange (301) arranged at the end of the second tube body (200), wherein a plurality of bolt holes are distributed on the second flange (301) and the first flange (300), and a sealing member is further provided between the second flange (301) and the first flange (300).

5. The easily adjustable wide flow ratio ejector according to claim 4, characterized in that: The sealing member comprises a positioning ring groove provided at the end of the first flange (300), and a sealing ring (302) is provided in each positioning ring groove. The thickness of the sealing ring (302) is greater than the depth of the positioning ring groove.

6. The easily adjustable wide flow ratio ejector according to claim 1, characterized in that: The width of the wire hole (509) is no greater than one millimeter.

7. The easily adjustable wide flow ratio ejector according to claim 1, characterized in that: An adjustable strip is provided on the outside of the rotating cylinder (402).

Images