An Improved Center Jet Pump Based on Ring Jet Technology
A central jet and technology technology, applied in the field of jet pumps, can solve the problems of not improving the cavitation of the jet pump, greatly affecting the operating performance of the jet pump, shortening the length of the throat, etc., so as to improve the backflow phenomenon, improve the impact of cavitation, The effect of easy processing
Active Publication Date: 2022-02-22
SICHUAN UNIV
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Practice has shown that: the use of pulse jet pumps can improve the efficiency of jet pumps, but the pulse device system needs to be added; the use of multi-nozzles can increase the contact surface between the working fluid and the liquid being sucked and shorten the length of the throat, thereby improving the efficiency of the jet pump. However, the multi-nozzle structure has a greater impact on the performance of the jet pump
The above improved technologies and structural forms can promote the efficiency of the jet pump, but they do not improve the cavitation problem of the jet pump under the limit flow ratio condition.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0032] Such as figure 1 As shown, the conventional central jet pump in the prior art includes a working water pipe 1, a central nozzle 2, a suction chamber 4, a water suction pipe 3, a throat inlet section 5, a throat pipe 6, a diffuser pipe 7 and a water outlet pipe 8, and the working water pipe 1 It is connected with the central nozzle 2, and the central nozzle 2 is installed in the suction chamber 4. One end of the suction chamber 4 is connected with a water suction pipe 3, and the other end of the suction chamber 4 is connected with a throat inlet section 5, a throat pipe 6, a diffuser pipe 7 and an outlet pipe in sequence. water pipe8. When it works, the contact surface acting on the liquid to be absorbed is the cylindrical surface of...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an improved central jet pump based on ring jet technology, and relates to the technical field of jet pumps. On the basis of the structure of the existing central jet pump, a combined sleeve device is provided. The combined sleeve device includes an annular sleeve, Working water pipe branch, suction pipe branch, flow regulating valve, control valve A, control valve B and check valve. When in use, when the jet pump is running at a small flow ratio, it can automatically control the working fluid to be sucked from the outside in the throat through the control valve A to increase the entrainment capacity, improve the backflow phenomenon, and improve the efficiency; When the jet pump operates under the condition of large flow ratio, it can automatically fill the sucked liquid into the throat through the control valve B, increase the pressure inside the throat, reduce the negative pressure, and improve the cavitation flow under extreme conditions, thereby improving Performance of central jet pumps.
Description
technical field [0001] The invention relates to the technical field of jet pumps, in particular to an improved center jet pump based on ring jet technology. Background technique [0002] The jet pump is a kind of fluid machinery that uses high-speed fluid as the working power to realize the suction, mixing and delivery of low-speed fluid through the viscous friction between fluids. The jet pump itself has no moving parts, and has a series of unique advantages such as simple structure, low cost, convenient installation and maintenance, good sealing performance, and reliable operation. Therefore, jet pumps are widely used in various fields of national economic production such as agriculture, animal husbandry and fishery, water conservancy, electric power, transportation, petroleum and geological exploration, especially for special occasions such as underwater, high temperature, high pressure, radiation and corrosion. Generate huge economic and social benefits. [0003] The s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04F5/10F04F5/46F04F5/48
CPCF04F5/10F04F5/46F04F5/48
Inventor 陈云良华有明徐永党晓强刘旻
Owner SICHUAN UNIV