CN115928646A - Ring self-oscillation gas lift device - Google Patents

Ring self-oscillation gas lift device Download PDF

Info

Publication number
CN115928646A
CN115928646A CN202211379281.7A CN202211379281A CN115928646A CN 115928646 A CN115928646 A CN 115928646A CN 202211379281 A CN202211379281 A CN 202211379281A CN 115928646 A CN115928646 A CN 115928646A
Authority
CN
China
Prior art keywords
air inlet
hole
seat
annular
communicated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211379281.7A
Other languages
Chinese (zh)
Inventor
邓晓刚
黄希循
王晓倩
姜奇志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing University of Science and Technology
Original Assignee
Chongqing University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing University of Science and Technology filed Critical Chongqing University of Science and Technology
Priority to CN202211379281.7A priority Critical patent/CN115928646A/en
Publication of CN115928646A publication Critical patent/CN115928646A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention discloses an annular self-oscillation gas lift device, which comprises an air inlet seat, wherein an air inlet channel penetrates through the air inlet seat; a material suction pipe; the oscillating base is internally provided with an oscillating chamber; an ejection seat, through which an ejection hole penetrates; the suction pipe is inserted in the air inlet channel, an annular air inlet cavity is formed between the outer wall of the suction pipe and the inner wall of the air inlet channel, and an air inlet nozzle communicated with the annular air inlet cavity is arranged on the air inlet seat; the air inlet seat is connected with the oscillating seat, the outlet end of the air inlet channel is communicated with the oscillating chamber, the oscillating seat is connected with the ejection seat, and the oscillating chamber is communicated with the ejection hole; the air inlet channel comprises an air inlet hole and a nozzle hole which are mutually communicated with each other through the same central line, the nozzle hole is in a circular truncated cone shape, a large opening end of the nozzle hole is communicated with the air inlet hole, and a small opening end of the nozzle hole is communicated with the oscillation chamber.

Description

Ring self-oscillation gas lift device
Technical Field
The invention relates to a substance conveying device, in particular to a conveying device for a solid-liquid mixture.
Background
Silt clearance mode has the multiple, except manual operation, can also adopt all kinds of desilting equipment/device to go on, and present desilting equipment/device adopts electric drive or fuel drive's mode directly to provide power more, and drive bucket or spiral are outwards transported silt, and energy consumption and noise are all great relatively. Later, people adopt gas lift devices to carry out desilting, because the gas lift devices transfer energy by means of mutual impact among fluid particles, a large amount of vortexes are generated in the process of mixing multiphase flows (solid, liquid and gas), high-pressure airflow of the existing gas lift devices is injected from the center, and the solid and liquid mixture is firstly sucked into the gas lift devices in the radial direction and then axially moves along the high-pressure airflow; the solid-liquid mixture streamline is changed, the energy consumption is caused by the impact in the gas lifting device, the mud suction efficiency is lower, the dredging effect is not good, and the solution to the problem can be to increase the air pressure to improve the flow speed of high-pressure airflow, but the energy consumption can be increased. In addition, the structure of the existing gas lift device is not perfect enough, unnecessary friction and collision are generated in the flow channel to cause energy loss, and the efficiency of the gas lift device is further reduced.
Disclosure of Invention
In view of the above reasons, the structure of the invention designs that the high-pressure gas is injected from the annular nozzle, and the solid-liquid mixture is directly sucked and flows axially, thereby reducing the energy loss of the solid-liquid mixture. The gas lift structure is redesigned, so that the energy and momentum exchange speed of the working fluid and the sucked fluid at the outlet of the nozzle is improved; the mass transfer efficiency and the energy transfer efficiency are improved. The aims of saving energy, reducing emission and reducing cost are achieved. The invention adopts the following main technical scheme:
the invention provides an annular self-oscillation gas lift device, which is characterized in that:
comprises an air inlet seat, wherein an air inlet channel penetrates through the air inlet seat;
a material suction pipe;
the oscillating base is internally provided with an oscillating chamber;
an ejection seat, through which an ejection hole penetrates;
the material suction pipe is inserted in the air inlet channel, an annular end cover is fixedly sleeved outside the material suction pipe and is positioned at the inlet end of the air inlet channel, the edge of the outer ring of the annular end cover is abutted against the inner wall of the air inlet channel, an annular air inlet cavity is formed between the outer wall of the material suction pipe and the inner wall of the air inlet channel, and an air inlet nozzle communicated with the annular air inlet cavity is arranged on the air inlet seat;
the inlet end of the material suction pipe extends outwards to form an inlet of the air inlet channel, and the outlet end of the material suction pipe is positioned in the air inlet channel;
the air inlet seat is connected with the oscillating seat, the outlet end of the air inlet channel is communicated with the oscillating chamber,
the oscillating seat is connected with the ejection seat, and the oscillating chamber is communicated with the ejection hole;
the air inlet channel comprises an air inlet hole and a nozzle hole which are communicated with each other through the same central line, the nozzle hole is in a circular truncated cone shape, a large opening end of the nozzle hole is communicated with the air inlet hole, a small opening end of the nozzle hole is communicated with the oscillation chamber, and an outlet end of the material suction pipe is positioned in the nozzle hole;
the outer wall of the outlet end of the material suction pipe is provided with a circle of annular wedge-shaped surface, the wedge-shaped surface is parallel to the inner wall of the nozzle hole, and an annular nozzle is formed between the wedge-shaped surface and the inner wall of the nozzle hole.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of section k of FIG. 1;
FIG. 3 is an enlarged view of the portion j of FIG. 1;
FIG. 4 is a schematic flow diagram of a solid-liquid mixture under the action of high-pressure gas;
FIG. 5 is a schematic diagram showing a state of disturbance of a three-phase mixture of solid, liquid and gas in the oscillation chamber 3a;
fig. 6 is a pressure cloud of the fluid inside the inlet 1a and the oscillation chamber 3a in the simulation;
FIG. 7 is a velocity cloud plot at the annular nozzle location for simulation
FIG. 8 is a velocity cloud chart of the inside of the oscillation chamber 3a in simulation
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, 2 and 3, an annular self-oscillation gas lift device comprises an air inlet seat 1, wherein an air inlet channel 1a penetrates through the air inlet seat; a material suction pipe 2; an oscillation base 3 having an oscillation chamber 3a therein; an injection seat 4 having an injection hole 4a formed therein;
the suction pipe 2 is inserted into the air inlet channel 1a, an annular end cover 21 is fixedly sleeved outside the suction pipe 2, the annular end cover 21 and the suction pipe 2 are integrally formed, the annular end cover 21 is positioned at the inlet end of the air inlet channel 1a, the edge of the outer ring of the annular end cover 21 is tightly abutted against and sealed with the inner wall of the air inlet channel 1a, an annular air inlet cavity is formed between the outer wall of the suction pipe 2 and the inner wall of the air inlet channel 1a, and an air inlet nozzle 11 communicated with the annular air inlet cavity is arranged on the air inlet seat 1;
the inlet end of the material suction pipe 2 extends outwards to form an inlet of the air inlet channel 1a, and the outlet end of the material suction pipe 2 is positioned in the air inlet channel 1a;
the air inlet seat 1 is connected with the oscillating seat 3, the outlet end of the air inlet channel 1a is communicated with the oscillating chamber 3a, the oscillating seat 3 is connected with the ejection seat 4, and the oscillating chamber 3a is communicated with the ejection hole 4a;
the air inlet channel 1a comprises an air inlet hole, a transition hole and a nozzle hole which are sequentially communicated with each other by the same central line, the nozzle hole and the transition hole are in a circular truncated cone shape, a small opening end of the nozzle hole is communicated with the oscillation chamber 3a, a large opening end of the nozzle hole is communicated with a small opening end of the transition hole, a large opening end of the transition hole is communicated with the air inlet hole, the air inlet hole can be a round hole, the taper of the transition hole is greater than that of the nozzle hole, and the outlet end of the material suction pipe 2 is positioned in the nozzle hole;
the outer wall of the outlet end of the material suction pipe 2 is provided with a circle of annular wedge-shaped surface, the wedge-shaped surface is parallel to the inner wall of the nozzle hole, an annular nozzle is formed between the wedge-shaped surface and the inner wall of the nozzle hole, and the annular nozzle is restrained by the wedge-shaped surface and the inner wall of the nozzle hole and is in a shape with one large end and one small end.
The outer side of the material suction pipe 2 is fixedly sleeved with an annular front end plate 22, the annular front end plate 22 can be welded on the material suction pipe 2, the annular front end plate 22 expands outwards in the radial direction and exceeds the outer contour of the air inlet seat 1, the inner end face of the annular front end plate 22 is attached to the outer end face of the annular end cover 21, the outer wall of the annular end cover 21 is movably sleeved with a first extension gasket 23, the inner end face of the first extension gasket 23 is attached to and sealed with the air inlet seat 1, the outer end face of the first extension gasket 23 is attached to and sealed with the inner end face of the annular front end plate 22, the axial distance between the air inlet seat 1 and the annular front end plate 22 can be changed by adjusting the axial size of the first extension gasket 23, so that the axial position of the material suction pipe 2 is adjusted, and the opening size of the annular nozzle is finally adjusted, and a user can independently match the opening size of the annular nozzle according to factors such as gas pressure, solid-liquid mixture state and concentration.
The oscillating seat 3 comprises an outer cylinder 31 and an end seat 32, the end seat 32 is opposite to the air inlet seat 1, two ends of the outer cylinder 31 are respectively sleeved on the end seat 32 and the air inlet seat 1, and the oscillating chamber 3a is formed by the space constrained by the end seat 32, the outer cylinder 31 and the air inlet seat 1.
The inlet end of the outer cylinder 31 is movably sleeved on the air inlet seat 1, a sealing ring is arranged between the air inlet seat 1 and the inlet end of the outer cylinder 31, a leaning ring 12 is fixedly sleeved outside the air inlet seat 1, and the leaning ring 12 is close to the outlet end of the air inlet channel 1a;
a second extension washer 13 is movably sleeved outside the air inlet seat 1, the second extension washer 13 is positioned in the downstream direction of the abutting ring 12, the second extension washer 13 abuts against and seals the abutting ring 12, the inlet end face of the outer cylinder 31 abuts against and seals the second extension washer 13, and the outlet end of the outer cylinder 31 is fixedly sleeved on the end seat 32. The second extension washer 13, which functions similarly to the first extension washer 23, axially adjusts the size of the oscillation chamber 3a by changing the axial distance of the outer cylinder 31 from the abutment ring 12.
End holder 32 external fixation cover is equipped with annular rear end plate 33 annular front end plate 22 with draw between the annular rear end plate 33 and be equipped with a plurality of connecting rods 5 that are parallel to each other, a conventional mode is, is equipped with threely at least connecting rod 5, all connecting rods 5 are around air inlet seat 1, the setting of vibration seat 3, annular front end plate 22 and annular rear end plate 33 are passed respectively at the both ends of connecting rod 5 two ends of wearing out of connecting rod 5 are overlapped respectively and are equipped with the nut to it is taut inwards with annular front end plate 22 and annular rear end plate 33 through connecting rod 5, thereby makes: the inner end surface of the first extension gasket 23 abuts against and seals the air inlet seat 1, the outer end surface of the first extension gasket 23 abuts against the inner end surface of the annular front end plate 22, the second extension gasket 13 abuts against the abutting ring 12, and the inlet end surface of the outer cylinder 31 abuts against the second extension gasket 13.
The side surface of the air inlet seat 1 facing the oscillation chamber 3a is a plane; the side surface of the end seat 32 facing the oscillation chamber 3a is provided with a circular truncated cone-shaped oscillation lug, the large end surface of the oscillation lug is connected with the end seat 32, and the edge of the large end surface of the oscillation lug is attached to the inner wall of the outer cylinder 31;
end seat 32 with it overflows the same round hole that overflows to run through on the oscillating lug, the injection hole 4a includes flush joint round hole, diffusion hole, the round hole that flows that the concentric line communicates in proper order, the aperture that flush joint round hole equals the aperture that overflows the round hole, flush joint round hole with the round hole intercommunication that overflows, the diffusion hole is the round platform form, the aperture end in diffusion hole with flush joint round hole intercommunication, the macrostoma end in diffusion hole with the round hole intercommunication that flows.
The taper of the transition hole is 0.8-1.2; the conicity of the nozzle hole is 0.2-0.3; the taper of the oscillating bump is 4-4.5; the taper of the diffusion hole is 0.4-0.5.
Introducing high-pressure airflow into the gas lift in the embodiment, inserting the inlet end of the material suction pipe 2 into sludge for suction, and driving a solid-liquid mixture (sludge) to enter the oscillation chamber 3a under the drive of the high-pressure airflow and be sprayed out from the ejection hole 4a; the flowing direction of the solid-liquid mixture (sludge) under the drive of the high-pressure air flow is shown in fig. 4, and the disturbance state of the solid-liquid-gas three-phase mixed flow in the oscillation chamber 3a is shown in fig. 5.
The above suction process is simulated to obtain a pressure cloud chart of the fluid in the whole flow passage (including the annular nozzle, the air inlet 1a, the oscillation chamber 3a and the ejection hole 4 a), as shown in fig. 6. The velocity cloud at the annular nozzle position is shown in fig. 7, and the velocity cloud within the oscillation chamber 3a is shown in fig. 8.
As can be seen from fig. 6, 7 and 8, the solid-liquid mixture in the material suction pipe 2 is subjected to the action of the high-pressure (high-speed) air flow, and the flow rate and the pressure are obviously improved after entering the nozzle hole, which obviously improves the suction effect on the solid-liquid mixture.
Has the advantages that: the gas lift device adopting the technical scheme of the invention can generate pulse jet flow, so that momentum and energy exchange can be carried out on a working gas and absorbed solid-liquid mixture more quickly, energy loss is reduced, the working efficiency of the gas lift device and the performances of energy transfer, mass transfer, entrainment and the like are improved, the length-diameter ratio of the oscillating chamber and the equivalent diameter of the annular nozzle can be adjusted according to the working condition, and the application range is wider.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims (9)

1. An annular self-oscillation gas lift device is characterized in that:
comprises an air inlet seat (1), wherein an air inlet channel (1 a) penetrates through the air inlet seat;
a material suction pipe (2);
an oscillating base (3) provided with an oscillating chamber (3 a) therein;
an injection seat (4) having an injection hole (4 a) formed therein;
the material suction pipe (2) is inserted into the air inlet channel (1 a), an annular end cover (21) is fixedly sleeved outside the material suction pipe (2), the annular end cover (21) is positioned at the inlet end of the air inlet channel (1 a), the edge of the outer ring of the annular end cover (21) is tightly abutted against the inner wall of the air inlet channel (1 a), an annular air inlet cavity is formed between the outer wall of the material suction pipe (2) and the inner wall of the air inlet channel (1 a), and an air inlet nozzle (11) communicated with the annular air inlet cavity is arranged on the air inlet seat (1);
the inlet end of the material suction pipe (2) extends outwards to form the inlet of the air inlet channel (1 a), and the outlet end of the material suction pipe (2) is positioned in the air inlet channel (1 a);
the air inlet seat (1) is connected with the oscillating seat (3), the outlet end of the air inlet channel (1 a) is communicated with the oscillating chamber (3 a),
the oscillating base (3) is connected with the ejection base (4), and the oscillating chamber (3 a) is communicated with the ejection hole (4 a);
the air inlet channel (1 a) comprises an air inlet hole and a nozzle hole which are communicated with each other along the same central line, the nozzle hole is in a circular truncated cone shape, the large opening end of the nozzle hole is communicated with the air inlet hole, the small opening end of the nozzle hole is communicated with the oscillation chamber (3 a), and the outlet end of the material suction pipe (2) is positioned in the nozzle hole;
the outer wall of the outlet end of the material suction pipe (2) is provided with a circle of annular wedge-shaped surface, the wedge-shaped surface is parallel to the inner wall of the nozzle hole, and an annular nozzle is formed between the wedge-shaped surface and the inner wall of the nozzle hole.
2. The annular self-oscillating gas lift device according to claim 1, wherein: the transition hole is arranged on the same center line between the air inlet hole and the nozzle hole and is in a circular truncated cone shape, the large opening end of the transition hole is communicated with the air inlet hole, the small opening end of the transition hole is communicated with the nozzle hole, and the taper of the transition hole is larger than that of the nozzle hole.
3. The ring-shaped self-oscillation gas lift apparatus according to claim 1, wherein: inhale material pipe (2) still fixed cover outward and have annular front end plate (22), this annular front end plate (22) radially outwards expand and surpass the outline of air inlet seat (1), the interior terminal surface of this annular front end plate (22) with the outer terminal surface of annular end cover (21) pastes tightly the outer wall of annular end cover (21) still activity cover is equipped with first extension packing ring (23), the interior terminal surface of this first extension packing ring (23) with air inlet seat (1) supports tightly, the outer terminal surface of this first extension packing ring (23) with the interior terminal surface of annular front end plate (22) supports tightly.
4. The annular self-oscillating gas lift device according to claim 1, wherein: oscillation seat (3) include urceolus (31) and end seat (32), end seat (32) with air inlet seat (1) is just to setting up, the both ends of urceolus (31) are the suit respectively end seat (32) with on air inlet seat (1), end seat (32), urceolus (31) and the space of air inlet seat (1) restraint forms oscillation chamber (3 a).
5. The annular self-oscillating gas lift device according to claim 4, wherein: the inlet end of the outer cylinder (31) is movably sleeved on the air inlet seat (1), a support ring (12) is fixedly sleeved outside the air inlet seat (1), and the support ring (12) is close to the outlet end of the air inlet channel (1 a);
a second extension gasket (13) is movably sleeved outside the air inlet seat (1), and the second extension gasket (13) is positioned in the downstream direction of the abutting ring (12);
the second extension gasket (13) is abutted against the abutting ring (12), and the inlet end face of the outer cylinder (31) is abutted against the second extension gasket (13);
the outlet end of the outer cylinder (31) is fixedly sleeved on the end seat (32).
6. The annular self-oscillating gas lift device according to claim 4 or 5, wherein: the outer fixed cover of end seat (32) is equipped with annular rear end plate (33) annular front end plate (22) with it is equipped with a plurality of connecting rods (5) to pull between annular rear end plate (33).
7. A ring-shaped self-oscillating gas lift apparatus according to claim 2, 3, 4 or 5, wherein: the taper of the transition hole is 0.8-1.2;
the conicity of the nozzle hole is 0.2-0.3.
8. A ring-shaped self-oscillating gas lift device according to claim 2, 3, 4 or 5, wherein: the side surface of the air inlet seat (1) facing the oscillation chamber (3 a) is a plane;
the side surface of the end seat (32) facing the oscillation chamber (3 a) is provided with a circular truncated cone-shaped oscillation lug, the large end surface of the oscillation lug is connected with the end seat (32), and the edge of the large end surface of the oscillation lug is attached to the inner wall of the outer cylinder (31);
the taper of the oscillation bump is 4-4.5.
9. The annular self-oscillating gas lift device according to claim 8, wherein: the end seat (32) and the oscillating lug are penetrated with the same overflowing circular hole, the ejecting hole (4 a) comprises a flush joint circular hole, a diffusion hole and an outflow circular hole which are sequentially communicated with each other along a common central line, the aperture of the flush joint circular hole is equal to that of the overflowing circular hole, the flush joint circular hole is communicated with the overflowing circular hole, the diffusion hole is in a circular truncated cone shape, the small-end of the diffusion hole is communicated with the flush joint circular hole, and the large-end of the diffusion hole is communicated with the outflow circular hole;
the taper of the diffusion hole is 0.4-0.5.
CN202211379281.7A 2022-11-04 2022-11-04 Ring self-oscillation gas lift device Pending CN115928646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211379281.7A CN115928646A (en) 2022-11-04 2022-11-04 Ring self-oscillation gas lift device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211379281.7A CN115928646A (en) 2022-11-04 2022-11-04 Ring self-oscillation gas lift device

Publications (1)

Publication Number Publication Date
CN115928646A true CN115928646A (en) 2023-04-07

Family

ID=86549745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211379281.7A Pending CN115928646A (en) 2022-11-04 2022-11-04 Ring self-oscillation gas lift device

Country Status (1)

Country Link
CN (1) CN115928646A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH627092A5 (en) * 1976-07-31 1981-12-31 Bayer Ag
CN1569691A (en) * 2004-05-02 2005-01-26 重庆大学 Jet Aerating Reactor
CN1821113A (en) * 2006-03-03 2006-08-23 重庆大学 Self exciting oscillation pipeline type flocculating device
CN102069049A (en) * 2010-11-24 2011-05-25 华北水利水电学院 Self-excitation aspiration pulse jet nozzle
DE102009057380A1 (en) * 2009-12-09 2011-06-16 Uhde Gmbh Device for feeding a fluid into a solids conveying line
CN102588353A (en) * 2012-02-14 2012-07-18 重庆工商大学 Self excited oscillation type jet vacuum pump
CN102909142A (en) * 2011-08-05 2013-02-06 李远明 Water gun for aerated pulse water jet
CN103253761A (en) * 2013-04-15 2013-08-21 浙江工业大学 Self-oscillation micropore aerator
CN203238105U (en) * 2013-04-25 2013-10-16 辽阳博仕流体设备有限公司 Air supply type self-excited oscillation pulsed water jet aerator
CN205296258U (en) * 2016-01-08 2016-06-08 山东海盛海洋工程集团有限公司 Marine gas lift formula is dashed and is inhaled mud device
CN107082283A (en) * 2017-05-10 2017-08-22 中国矿业大学 A kind of self-excited oscillation type pulse eddy flow booster
CN108128634A (en) * 2018-01-29 2018-06-08 华北水利水电大学 A kind of adjustable pulse whirlwind generator

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH627092A5 (en) * 1976-07-31 1981-12-31 Bayer Ag
CN1569691A (en) * 2004-05-02 2005-01-26 重庆大学 Jet Aerating Reactor
CN1821113A (en) * 2006-03-03 2006-08-23 重庆大学 Self exciting oscillation pipeline type flocculating device
DE102009057380A1 (en) * 2009-12-09 2011-06-16 Uhde Gmbh Device for feeding a fluid into a solids conveying line
CN102069049A (en) * 2010-11-24 2011-05-25 华北水利水电学院 Self-excitation aspiration pulse jet nozzle
CN102909142A (en) * 2011-08-05 2013-02-06 李远明 Water gun for aerated pulse water jet
CN102588353A (en) * 2012-02-14 2012-07-18 重庆工商大学 Self excited oscillation type jet vacuum pump
CN103253761A (en) * 2013-04-15 2013-08-21 浙江工业大学 Self-oscillation micropore aerator
CN203238105U (en) * 2013-04-25 2013-10-16 辽阳博仕流体设备有限公司 Air supply type self-excited oscillation pulsed water jet aerator
CN205296258U (en) * 2016-01-08 2016-06-08 山东海盛海洋工程集团有限公司 Marine gas lift formula is dashed and is inhaled mud device
CN107082283A (en) * 2017-05-10 2017-08-22 中国矿业大学 A kind of self-excited oscillation type pulse eddy flow booster
CN108128634A (en) * 2018-01-29 2018-06-08 华北水利水电大学 A kind of adjustable pulse whirlwind generator

Similar Documents

Publication Publication Date Title
CN107159046B (en) Fracturing fluid mixing system and mixing method thereof
CN207169595U (en) The mixing system of fracturing blender truck
US9447796B2 (en) Annular jet pump
CN106112821B (en) A kind of front mixing abrasive water jet is worked continuously system and method
CN107044454B (en) Circular seam ejector
CN103334723B (en) A kind of underground coal mine waterpower slot self-suction abrasive jet flow generating means and method
CN100436821C (en) Deep-well pump molded by punching and welding
CN112023741B (en) Two-section cavitation bubble generator
CN102345648A (en) Injection pump and suction method thereof
CN205297699U (en) Mixing arrangement that admits air of SCR system
CN115928646A (en) Ring self-oscillation gas lift device
CN113441301B (en) Single-phase internal shearing nozzle for atomizing shearing thinning fluid
CN206290499U (en) A kind of novel injection pump
CN102240512A (en) Dedusting foaming device
CN201943938U (en) Liquid inlet/outlet valve group structure
CN204894212U (en) Fluid mixing apparatus
CN210919593U (en) Jet pump capable of automatically and uniformly supplementing air and reducing corrosion
CN202468492U (en) Injection pump
CN2356940Y (en) Suction type jet ship
CN2279216Y (en) Column flotator energy-saving microfoam generator
CN210115001U (en) Vacuum oil injection device
CN206682055U (en) Circumferential weld injector
CN207433816U (en) A kind of multiinjector injector for the inflation of civil aircraft slide
CN219879579U (en) Microbubble generating device
CN201423224Y (en) Novel framework of bag type dust collector with Venturi tube

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination