CN111140553A - Low-pressure jet pump with adjustable flow rate - Google Patents
Low-pressure jet pump with adjustable flow rate Download PDFInfo
- Publication number
- CN111140553A CN111140553A CN201911384202.XA CN201911384202A CN111140553A CN 111140553 A CN111140553 A CN 111140553A CN 201911384202 A CN201911384202 A CN 201911384202A CN 111140553 A CN111140553 A CN 111140553A
- Authority
- CN
- China
- Prior art keywords
- low
- adjusting rod
- flow rate
- nozzle
- jet pump
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
Abstract
The invention relates to a fluid mechanical structure design, in particular to a low-pressure flow-rate adjustable jet pump which is simple in structure, good in sealing performance, multi-working-condition and large in flow and the like, and comprises a nozzle (1), a low-pressure flow-rate control valve (2), an adjusting rod (5), an adjusting rod support (6), an electric motor (8), a throat (3) and a diffusion pipe (4), wherein the diffusion pipe (4) is connected with the throat (3), the nozzle (1) is communicated with the throat (3), one end of the adjusting rod (5) is connected with the low-pressure flow-rate control valve (2), the other end of the adjusting rod is connected with the electric motor (8), the adjusting rod (5) is in threaded connection with the adjusting rod support (6), the low-pressure flow-rate control valve (2) is located at an outlet (a) of the nozzle (1), and the outlet (a) of the nozzle (1) is in a conical.
Description
Technical Field
The invention relates to a fluid mechanical structure design, in particular to a low-pressure jet pump with adjustable flow rate.
Background
A jet pump is a fluid machine and mixing reaction device used to transfer energy and mass. The device has the advantages of reliable work, convenient installation and maintenance and good sealing performance, and is beneficial to conveying toxic, explosive, inflammable and radioactive media. Various pressure energy sources can be directly used as the working power of the jet pump, and other auxiliary equipment is not required to be added, so that the comprehensive application value of the jet pump is very high. Because the jet pump has a special structure, the energy loss is large when the high-speed fluid and the absorbed fluid are mixed, the overall energy transmission efficiency of the jet pump is extremely low, and the flow control of the mixed fluid in the jet pump is very complex and needs operation experience, the jet pump can not meet the corresponding industrial requirements in application.
Disclosure of Invention
In order to solve the problem, the invention provides a low-pressure flow-rate adjustable jet pump which has the characteristics of simple structure, good sealing performance, multiple working conditions, high flow and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the jet pump with the adjustable low-pressure flow rate comprises a nozzle, a low-pressure flow rate control valve, an adjusting rod support, an electric motor, a throat pipe and a diffusing pipe, wherein the diffusing pipe is connected with the throat pipe, the nozzle is communicated with the throat pipe, one end of the adjusting rod is connected with the low-pressure flow rate control valve, the other end of the adjusting rod is connected with the electric motor, the adjusting rod is in threaded connection with the adjusting rod support, the low-pressure flow rate control valve is located at an outlet of the nozzle, and the outlet of the nozzle is of a conical structure.
Preferably, the electric motor is in sliding fit with the guide rail.
Preferably, the low pressure flow rate control valve is in a drop shape.
The invention achieves the following beneficial effects: the low-pressure flow-rate adjustable jet pump adjusts the flow of the mixed fluid by changing the operating condition of the high-speed fluid, so that the flow is more convenient to adjust, and the limitation of stable operation of the jet pump under multiple operating conditions is solved; the jet pump has the main characteristics that the flow of the mixed fluid is adjusted by changing the operating condition of the high-speed fluid, the flow is more convenient to adjust, and the jet pump is easy to install, long in service life and high in reliability.
Drawings
Fig. 1 is a schematic structural diagram of a low-pressure flow-rate adjustable jet pump according to the present invention.
Description of the drawings: 1. nozzle, 2, low-pressure flow rate control valve, 3, throat, 4, diffusion pipe, 5, adjusting rod, 6, adjusting rod support, 7, guide rail, 8, electric motor, a and outlet
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A low-pressure jet pump with adjustable flow rate comprises a nozzle 1, a low-pressure flow rate control valve 2, an adjusting rod 5, an adjusting rod support 6, an electric motor 8, a throat 3 and a diffusion tube 4, wherein the diffusion tube 4 is connected with the throat 3, the nozzle 1 is communicated with the throat 3, one end of the adjusting rod 5 is connected with the low-pressure flow rate control valve 2, the other end of the adjusting rod 5 is connected with the electric motor 8, the adjusting rod 5 is in threaded connection with the adjusting rod support 6, the low-pressure flow rate control valve 2 is located at an outlet a of the nozzle 1, and the outlet a of the nozzle 1 is of a conical structure; the electric motor 8 is in sliding fit with the guide rail 7; the low-pressure flow rate control valve 2 is in a drop shape.
The jet pump with adjustable low pressure flow rate consists of eight parts, including nozzle 1, low pressure flow rate control valve 2, throat pipe 3, diffusion pipe 4, regulating rod 5, regulating rod support 6, guide rail 7 and electric motor 8. The low-pressure flow rate control valve 2 is in a water drop shape and is matched with the conical structure a of the nozzle 1, the flow rate of working fluid is adjusted by changing the relative position of the low-pressure flow rate control valve 2, wherein the low-pressure flow rate control valve 2 adjusts the axial movement of the adjusting rod 5 under the power action of the electric motor 8, and therefore the relative position of the low-pressure flow rate control valve 2 and the conical structure of the outlet a is adjusted.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The jet pump with the adjustable low-pressure flow rate is characterized in that: the nozzle comprises a nozzle (1), a low-pressure flow velocity control valve (2), an adjusting rod (5), an adjusting rod support (6), an electric motor (8), a throat (3) and a diffusion tube (4), wherein the diffusion tube (4) is connected with the throat (3), the nozzle (1) is communicated with the throat (3), one end of the adjusting rod (5) is connected with the low-pressure flow velocity control valve (2), the other end of the adjusting rod is connected with the electric motor (8), the adjusting rod (5) is in threaded connection with the adjusting rod support (6), the low-pressure flow velocity control valve (2) is located at an outlet (a) of the nozzle (1), and the outlet (a) of the nozzle (1) is in a conical structure.
2. The low pressure, adjustable flow rate jet pump of claim 1, wherein: the electric motor is characterized by further comprising a guide rail (7), and the electric motor (8) is in sliding fit with the guide rail (7).
3. The low pressure, adjustable flow rate jet pump of claim 1, wherein: the low-pressure flow rate control valve (2) is in a drop shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384202.XA CN111140553A (en) | 2019-12-28 | 2019-12-28 | Low-pressure jet pump with adjustable flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384202.XA CN111140553A (en) | 2019-12-28 | 2019-12-28 | Low-pressure jet pump with adjustable flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140553A true CN111140553A (en) | 2020-05-12 |
Family
ID=70521447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911384202.XA Withdrawn CN111140553A (en) | 2019-12-28 | 2019-12-28 | Low-pressure jet pump with adjustable flow rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140553A (en) |
-
2019
- 2019-12-28 CN CN201911384202.XA patent/CN111140553A/en not_active Withdrawn
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200512 |
|
| WW01 | Invention patent application withdrawn after publication |