CN114922867A - Multi-channel combined jet pump - Google Patents

Multi-channel combined jet pump Download PDF

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Publication number
CN114922867A
CN114922867A CN202210783699.8A CN202210783699A CN114922867A CN 114922867 A CN114922867 A CN 114922867A CN 202210783699 A CN202210783699 A CN 202210783699A CN 114922867 A CN114922867 A CN 114922867A
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China
Prior art keywords
pressure fluid
mixing chamber
fluid inlet
jet pump
shell
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CN202210783699.8A
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Chinese (zh)
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CN114922867B (en
Inventor
权辉
孙军
杜媛英
王智胜
辜子莹
姚磊
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Lanzhou University of Technology
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Lanzhou University of Technology
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Priority to CN202210783699.8A priority Critical patent/CN114922867B/en
Publication of CN114922867A publication Critical patent/CN114922867A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42

Abstract

The invention discloses a multi-channel combined jet pump, which relates to the technical field of jet pumps and comprises the following components: a housing; the first clapboard is fixedly connected with the inner wall of the shell and divides the shell into a suction chamber and a mixing chamber, and the first clapboard is provided with a through hole for communicating the suction chamber and the mixing chamber; the high-pressure fluid inlet pipes are distributed in the suction chamber at intervals, one end of each high-pressure fluid inlet pipe is connected with the first end of the shell, and the other end of each high-pressure fluid inlet pipe penetrates through the first partition plate and extends into the mixing chamber; a first low-pressure fluid inlet pipe communicating with the suction chamber; a second low-pressure fluid inlet pipe communicating with the mixing chamber; an intermediate pressure fluid outlet pipe is disposed at the second end of the housing, the intermediate pressure fluid outlet pipe communicating with the mixing chamber. The invention can realize the multi-stage energy adding of the jet pump.

Description

Multi-channel combined jet pump
Technical Field
The invention relates to the technical field of jet pumps, in particular to a multi-channel combined jet pump.
Background
At present, the existing jet pump can only realize one-stage energy adding, and a high-pressure fluid inlet pipe and a low-pressure fluid inlet pipe which are communicated with a suction chamber are respectively one, so that the existing jet pump has poor energy adding effect, and the speed of fluid sprayed out by the jet pump is lower finally.
Therefore, how to provide a jet pump capable of realizing multi-stage energizing is a problem which needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a multi-channel combined jet pump, which aims at one of the problems in the background art and realizes multi-stage energization of the jet pump.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-channel combination jet pump comprising:
a housing;
the first clapboard is fixedly connected with the inner wall of the shell, the shell is divided into a suction chamber and a mixing chamber by the first clapboard, and the first clapboard is provided with a through hole for communicating the suction chamber and the mixing chamber;
a plurality of high-pressure fluid inlet pipes which are distributed in the suction chamber at intervals, wherein one end of each high-pressure fluid inlet pipe is connected with the first end of the shell, and the other end of each high-pressure fluid inlet pipe penetrates through the first partition plate and extends into the mixing chamber;
a first low-pressure fluid inlet pipe that is provided on the housing and that communicates with the suction chamber;
a second low-pressure fluid inlet pipe provided on the housing, the second low-pressure fluid inlet pipe communicating with the mixing chamber;
an intermediate pressure fluid outlet tube disposed at the second end of the housing, the intermediate pressure fluid outlet tube communicating with the mixing chamber.
Furthermore, the multi-channel combined jet pump further comprises a flow guide shell, wherein the flow guide shell is arranged in the mixing chamber, one end, facing the first partition plate, of the flow guide shell is fixedly connected with the inner wall of the shell, and the sectional area of the inner cavity of the flow guide shell is gradually reduced from the first partition plate to the other end of the flow guide shell.
Further, the medium-pressure fluid outlet pipe comprises a straight-arm pipe and an expansion pipe, a small opening end of the expansion pipe is connected with one end of the straight-arm pipe, and the other end of the straight-arm pipe is communicated with the mixing chamber.
Further, one end of the straight arm pipe close to the mixing chamber extends into the mixing chamber.
Further, the straight arm pipe extends to the inside of the diversion shell, and the outer diameter of the straight arm pipe is smaller than the inner diameter of the smaller end of the diversion shell opening.
Furthermore, the number of the through holes on the first partition plate is the same as that of the high-pressure fluid inlet pipes, the positions of the through holes correspond to those of the high-pressure fluid inlet pipes, one end, close to the first partition plate, of the high-pressure fluid inlet pipe extends into the mixing chamber through the through holes, and a gap exists between the inner wall of each through hole and the outer wall of each high-pressure fluid inlet pipe.
Furthermore, the multi-channel combined jet pump also comprises a plurality of guide plates, wherein a plurality of guide plates are arranged in each gap, and the guide plates divide the gap into a plurality of channels which are respectively communicated with the suction chamber and the mixing chamber.
According to the technical scheme, compared with the prior art, the multichannel combined jet pump has the advantages that the interior of the shell is divided into the suction chamber and the mixing chamber through the first partition plate, low-pressure fluid enters the suction chamber from the first low-pressure fluid inlet pipe and then enters the mixing chamber from the through holes in the first partition plate to be mixed with high-pressure fluid introduced from the high-pressure fluid inlet pipe in a first stage, first-stage energizing of the fluid is achieved in the process, the mixed fluid is mixed with the low-pressure fluid introduced from the second low-pressure fluid inlet pipe and finally sprayed out from the medium-pressure fluid outlet pipe, second-stage energizing of the mixed fluid is achieved in the process, and multi-stage energizing of the fluid is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-channel combined jet pump provided by the invention;
fig. 2 is a cross-sectional view taken along the line a-a of fig. 1 according to the present invention.
Wherein: 1 is a shell; 2 is a first partition plate; 3 is a suction chamber; 4 is a mixing chamber; 5 is a high-pressure fluid inlet pipe; 6 is a first low pressure fluid inlet pipe; 7 is a second low pressure fluid inlet pipe; 8 is a medium pressure fluid outlet pipe; 81 is a straight arm tube; 82 is an expansion tube; 9 is a second partition plate; 10 is a guide shell; 11 is a through hole; and 12 is a guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention discloses a multi-channel combined jet pump, including:
a housing 1;
the first clapboard 2 is fixedly connected with the inner wall of the shell 1, the shell 1 is divided into a suction chamber 3 and a mixing chamber 4 by the first clapboard 2, and the first clapboard 2 is provided with a through hole 11 for communicating the suction chamber 3 and the mixing chamber 4;
a plurality of high-pressure fluid inlet pipes 5 are arranged, the high-pressure fluid inlet pipes 5 are distributed in the suction chamber 3 at intervals, one end of each high-pressure fluid inlet pipe 5 is connected with the first end of the shell 1, and the other end of each high-pressure fluid inlet pipe 5 penetrates through the first partition plate 2 and extends into the mixing chamber 4;
a first low-pressure fluid inlet pipe 6, the first low-pressure fluid inlet pipe 6 being provided on the casing 1, and the first low-pressure fluid inlet pipe 6 communicating with the suction chamber 3;
a second low-pressure fluid inlet pipe 7, the second low-pressure fluid inlet pipe 7 being provided on the housing 1, and the second low-pressure fluid inlet pipe 7 being communicated with the mixing chamber 4;
an intermediate pressure fluid outlet duct 8, the intermediate pressure fluid outlet duct 8 being provided at the second end of the housing 1, the intermediate pressure fluid outlet duct 8 communicating with the mixing chamber 4.
Wherein, in this embodiment, the shell 1 is a cylindrical shell 1, both ends of the shell 1 are closed blind ends, the first partition plate 2 is disposed along the radial direction of the first shell 1, the shell 1 is divided into a suction chamber 3 and a mixing chamber 4, five high-pressure fluid inlet pipes 5 are disposed in the suction chamber 3, one high-pressure fluid inlet pipe 5 is disposed on the central axis of the shell 1, the other four high-pressure fluid inlet pipes 5 are uniformly distributed around the high-pressure fluid inlet pipe 5 at the central position, one end of each high-pressure fluid inlet pipe 5 penetrates through the first end of the shell 1, the other end of each high-pressure fluid inlet pipe 5 penetrates through the first partition plate 2 and extends into the mixing chamber 4, in other embodiments, the number of the high-pressure fluid inlet pipes 5 may be specifically set according to actual requirements, and in other embodiments, the second end of the shell 1 may also be set to be in an open structure, a first partition plate 2 and a second partition plate 9 are arranged in a shell 1, a mixing chamber 4 is formed by the first partition plate 2, the second partition plate 9 and the inner wall of the shell 1 in a surrounding mode, a medium-pressure fluid outlet pipe 8 is arranged on the second partition plate 9, an opening cavity is formed by the second partition plate 9 and one opened end of the shell 1, and an outlet of the medium-pressure fluid outlet pipe 8 is located in the opening cavity.
According to some embodiments of the present invention, a plurality of partition plates may be further disposed in the housing 1, and each partition plate is provided with a communication hole 11 for communicating the chambers on two sides of the partition plate.
In this embodiment, preferably, the multi-channel combined jet pump further includes a guide shell 10, the guide shell 10 is disposed in the mixing chamber 4, one end of the guide shell 10 facing the first partition 2 is fixedly connected to the inner wall of the casing 1, and the cross-sectional area of the inner cavity of the guide shell 10 is gradually reduced from the first partition 2 to the other end. Specifically, the guide shell 10 is a funnel-shaped structure, and through the arrangement of the guide shell 10, high-pressure fluid sprayed from the high-pressure fluid inlet pipes 5 can be collected and guided, and the high-pressure fluid introduced from the high-pressure fluid inlet pipes 5 and the low-pressure fluid introduced from the first low-pressure fluid inlet pipe 6 are mixed in the guide shell 10, so that primary energizing of the fluid is realized in the process, the fluid subjected to the primary energizing is finally sprayed from one end with a smaller opening end of the guide shell 10 and is mixed with the low-pressure fluid introduced from the second low-pressure fluid inlet pipe 7, the mixed fluid is sprayed from the medium-pressure fluid outlet pipe 8, secondary energizing of mixed fluid is realized in the process, and further the spraying speed of the mixed fluid is increased.
In the above embodiment, preferably, the medium-pressure fluid outlet pipe 8 includes the straight-arm pipe 81 and the expanding pipe 82, a small-mouth end of the expanding pipe 82 is connected to one end of the straight-arm pipe 81, and the other end of the straight-arm pipe 81 is communicated with the mixing chamber 4. Specifically, one end of the straight arm pipe 81 near the mixing chamber 4 protrudes into the mixing chamber 4. The straight arm pipe 81 extends into the guide shell 10, and the outer diameter of the straight arm pipe 81 is smaller than the inner diameter of the smaller opening end of the guide shell 10. By extending the straight arm pipe 81 into the guide shell 10, the low-pressure fluid entering from the second low-pressure fluid inlet pipe 7 can enter the guide shell 10, a turbulent flow is formed in the guide shell 10, and finally the low-pressure fluid is ejected from the medium-pressure fluid outlet pipe 8, so that the ejection speed of the fluid can be enhanced.
In the present embodiment, preferably, the number of the through holes 11 on the first partition board 2 is the same as the number of the high-pressure fluid inlet pipe 5, the positions of the through holes 11 correspond to the positions of the high-pressure fluid inlet pipe 5, one end of the high-pressure fluid inlet pipe 5 close to the first partition board 2 extends into the mixing chamber 4 from the through holes 11, and a gap exists between the inner wall of the through holes 11 and the outer wall of the high-pressure fluid inlet pipe 5. The low-pressure fluid introduced from the first low-pressure fluid inlet pipe 6 enters the mixing chamber 4 from the gap between the through hole 11 and the high-pressure fluid inlet pipe 5, the high-pressure fluid introduced from the high-pressure fluid inlet pipe 5 and the low-pressure fluid entering the mixing chamber 4 from the gap bounce on the inner wall of the guide shell 10, and the mixing degree of the high-pressure fluid and the low-pressure fluid is enhanced in the guide shell 10.
In the above embodiment, the multi-channel combined jet pump further includes a guide plate 12, a plurality of guide plates 12 are disposed in each gap, and the plurality of guide plates 12 divide the gap into a plurality of channels respectively communicating the suction chamber 3 and the mixing chamber 4. Through the setting of guide plate 12, can play the reposition of redundant personnel effect by the low-pressure fluid that suction chamber 3 got into in the mixing chamber 4, in other embodiments, also can set guide plate 12 to the helical shape, can play the vortex effect to the low-pressure fluid through helical shape's guide plate 12, and then can strengthen the disturbance of air-fuel mixture, the mixed degree of reinforcing high-pressure fluid and low-pressure fluid.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A multi-channel combination jet pump, comprising:
a housing;
the first partition plate is fixedly connected with the inner wall of the shell and divides the shell into a suction chamber and a mixing chamber, and a through hole for communicating the suction chamber and the mixing chamber is formed in the first partition plate;
a plurality of high-pressure fluid inlet pipes which are distributed in the suction chamber at intervals, wherein one end of each high-pressure fluid inlet pipe is connected with the first end of the shell, and the other end of each high-pressure fluid inlet pipe penetrates through the first partition plate and extends into the mixing chamber;
a first low-pressure fluid inlet pipe that is provided on the housing and that communicates with the suction chamber;
a second low-pressure fluid inlet pipe provided on the housing and communicating with the mixing chamber;
an intermediate pressure fluid outlet tube disposed at the second end of the housing, the intermediate pressure fluid outlet tube communicating with the mixing chamber.
2. The multi-channel combined jet pump as claimed in claim 1, further comprising a guide shell, wherein the guide shell is disposed in the mixing chamber, one end of the guide shell facing the first partition is fixedly connected to an inner wall of the casing, and a cross-sectional area of an inner cavity of the guide shell is gradually reduced from the first partition to the other end.
3. The multi-channel combined jet pump according to claim 2, wherein the medium-pressure fluid outlet pipe comprises a straight-arm pipe and an expansion pipe, a small end of the expansion pipe is connected with one end of the straight-arm pipe, and the other end of the straight-arm pipe is communicated with the mixing chamber.
4. The multi-channel combined jet pump as claimed in claim 3, wherein an end of the straight arm tube near the mixing chamber protrudes into the mixing chamber.
5. The multi-channel combined jet pump as claimed in claim 4, wherein the straight arm pipe extends into the guide shell, and the outer diameter of the straight arm pipe is smaller than the inner diameter of the smaller opening end of the guide shell.
6. The multi-channel combined jet pump as claimed in claim 1, wherein the number of the through holes on the first partition plate is the same as the number of the high-pressure fluid inlet pipes, the positions of the through holes correspond to the positions of the high-pressure fluid inlet pipes, one ends of the high-pressure fluid inlet pipes close to the first partition plate extend into the mixing chamber from the through holes, and a gap exists between the inner walls of the through holes and the outer walls of the high-pressure fluid inlet pipes.
7. The multi-channel combined jet pump of claim 6 further comprising a plurality of baffles disposed within each gap, the plurality of baffles dividing the gap into a plurality of channels communicating with the suction chamber and the mixing chamber, respectively.
CN202210783699.8A 2022-07-05 2022-07-05 Multi-channel combined jet pump Active CN114922867B (en)

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Application Number Priority Date Filing Date Title
CN202210783699.8A CN114922867B (en) 2022-07-05 2022-07-05 Multi-channel combined jet pump

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CN114922867B CN114922867B (en) 2023-03-24

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH83025A (en) * 1918-12-21 1920-02-02 Bbc Brown Boveri & Cie Process for stabilizing steam or gas jet apparatus with at least two stages
CN1936342A (en) * 2006-10-16 2007-03-28 李树生 High-flow suction jet pipe and multi-stage multi-pipe suction jet pump
CN101644280A (en) * 2009-05-31 2010-02-10 北京凝汽动力技术有限公司 Multistage suction-ejection pump
CN205243755U (en) * 2015-11-04 2016-05-18 浙江格美机电科技有限公司 Jet pump subassembly
CN106122120A (en) * 2016-07-28 2016-11-16 浙江工业大学 Compound two-stage multichannel gas-liquid jet pump
CN207437469U (en) * 2017-10-17 2018-06-01 中国石油天然气股份有限公司 A kind of jet pump and the well washing system with the jet pump
EP3708851A1 (en) * 2019-03-15 2020-09-16 Carrier Corporation Ejector and refrigerating system
CN112983776A (en) * 2019-12-18 2021-06-18 攀天藤(深圳)科技有限公司 Funnel pump

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH83025A (en) * 1918-12-21 1920-02-02 Bbc Brown Boveri & Cie Process for stabilizing steam or gas jet apparatus with at least two stages
CN1936342A (en) * 2006-10-16 2007-03-28 李树生 High-flow suction jet pipe and multi-stage multi-pipe suction jet pump
CN101644280A (en) * 2009-05-31 2010-02-10 北京凝汽动力技术有限公司 Multistage suction-ejection pump
CN205243755U (en) * 2015-11-04 2016-05-18 浙江格美机电科技有限公司 Jet pump subassembly
CN106122120A (en) * 2016-07-28 2016-11-16 浙江工业大学 Compound two-stage multichannel gas-liquid jet pump
CN207437469U (en) * 2017-10-17 2018-06-01 中国石油天然气股份有限公司 A kind of jet pump and the well washing system with the jet pump
EP3708851A1 (en) * 2019-03-15 2020-09-16 Carrier Corporation Ejector and refrigerating system
CN112983776A (en) * 2019-12-18 2021-06-18 攀天藤(深圳)科技有限公司 Funnel pump

Non-Patent Citations (2)

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Title
柴小煜等: "轴流混输泵串列叶栅内流场特性及其诱导噪声研究", 《甘肃科学学报》 *
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