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Involute flow pipe valveless piezoelectric pump

A valveless piezoelectric pump and involute technology, applied in the direction of pumps, pumps with flexible working elements, liquid variable displacement machinery, etc., can solve the problems of poor reverse flow stop performance and achieve good one-way fluidity , simple processing, and the effect of improving work efficiency

Active Publication Date: 2014-04-09
JIANGSU YUANWANG INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of existing valveless piezoelectric pumps, such as poor reverse stop performance, and at the same time, expands the application range of spiral flow tube technology in heat transfer, mixing and other fields

Method used

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  • Involute flow pipe valveless piezoelectric pump
  • Involute flow pipe valveless piezoelectric pump
  • Involute flow pipe valveless piezoelectric pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as image 3 , Figure 6 and Figure 9 As shown, the involute flow tube valveless piezoelectric pump of this embodiment includes a pump body 1 composed of an upper cover 2 and a lower cover 3 that are sealed and connected, and a piezoelectric pump is installed between the upper cover 2 and the lower cover 3 The pump cavity 5 of the vibrator 4; a first involute flow tube 6 and a first direct flow tube 7 are also included between the upper cover 2 and the lower cover 3; one end of the first involute flow tube 6 is connected to the The fluid inlet 11 on the pump body 1 is connected, and the other end is connected to the pump chamber 5 through the second direct-flow pipe 61; one end of the first direct-flow pipe 7 is connected to the pump chamber 5, and the other end is connected to the The fluid outlet 12 is connected; the first involute flow pipe 6 , the first straight pipe 7 and the second straight pipe 61 are all arranged on the lower cover 3 . The upper cover 2 ...

Embodiment 2

[0036] Such as Figure 4 As shown, the main structure of this embodiment is basically the same as that of Embodiment 1, the difference is that this embodiment contains two involute flow tubes, that is, the first involute flow tube 6 and the second involute flow tube 8 , the two flow tubes are symmetrical with the centerline of the pump chamber 5 as the axis of symmetry.

[0037] Such as Figure 10 As shown, the first involute flow pipe 6 starts from the fluid inlet 11 and ends at the connection point connected with the second straight pipe 61, and the overall direction is clockwise; the second involute flow pipe 6 The flow pipe 8 starts from the fluid outlet 12 and ends at the connection point connected with the first direct-flow pipe 7 , and rotates counterclockwise as a whole.

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Abstract

The invention relates to an involute flow pipe valveless piezoelectric pump, which comprises a pump body formed by hermetically connecting an upper cover and a lower cover; a pump cavity accommodated with a piezoelectric vibrator is arranged between the upper cover and the lower cover; a first involute flow pipe and a first straight flow pipe are arranged on the pump cavity; one end of the first involute flow pipe is connected with the pump cavity and the other end of the first involute flow pipe is connected with a fluid inlet arranged on the pump body; and one end of the first straight pipe is connected with the pump cavity and the other end of the first straight pipe is connected with a fluid outlet arranged on the pump body. A helical flow pipe technology and a piezoelectric technology are organically combined and involute flow pipes are utilized in the involute flow pipe valveless piezoelectric pump; compared with a conical flow pipe valveless piezoelectric pump, the involute flow pipe valveless piezoelectric pump has the advantages of high one-way mobility, reduction on energy loss of flow fluid and improvement on the working efficiency of the pump; and at the same time, the application range of the helical flow pipe technology in the fields of heat transfer, heat mixing and the like is expanded, and the involute flow pipe valveless piezoelectric pump is particularly applicable for an environment sensitive to a magnetic field.

Description

technical field [0001] The invention relates to a valveless piezoelectric pump, in particular to a valveless piezoelectric pump using a spiral flow tube. Background technique [0002] Piezoelectric pumps belonging to the volumetric type can be divided into valved and valveless piezoelectric pumps if they are classified according to the valve body. If the valve is defined as: during the suction and discharge process of the pump, at least for a period of time, there is a mechanical device that is not connected between the pump chamber and the suction port or the discharge port, then the so-called "valveless" is: at any time , The pump cavity is connected with the suction port or the discharge port. At this time, the one-way flow of fluid relies on special mechanical devices. This device utilizes the properties of the fluid, so that the pump chamber is always in communication with the suction and discharge ports, and can drive the fluid to flow in one direction. At present, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/04
Inventor 张建辉
Owner JIANGSU YUANWANG INSTR
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