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Valveless piezoelectric pump of Archimedes helical flow pipe

An Archimedes spiral, valveless piezoelectric pump technology, applied in pumps, pumps with flexible working elements, liquid variable capacity machines, etc. It can solve the problems of chemical and other problems, and achieve the effect of simple structure, convenient flow supply control, and easy installation.

Inactive Publication Date: 2011-11-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This valveless piezoelectric pump is actually a conical flow tube piezoelectric pump, and the processing difficulty of the confluent conical tube and the split logarithmic solenoid is relatively high, which is not conducive to its industrialization

Method used

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  • Valveless piezoelectric pump of Archimedes helical flow pipe
  • Valveless piezoelectric pump of Archimedes helical flow pipe
  • Valveless piezoelectric pump of Archimedes helical flow pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one: if image 3 , Figure 4 , Figure 5As shown, the Archimedes solenoid valveless piezoelectric pump of this embodiment includes a pump body 3 composed of a lower cover 1 and an upper cover 2, and a pump chamber 4 arranged between the lower cover 1 and the upper cover 2 , and the piezoelectric vibrator 5 accommodated in the pump chamber 4, and also includes a first Archimedes solenoid flow tube 6 and a first communication groove 7 arranged between the lower cover 1 and the upper cover 2, the said Archimedes One end of the Mead spiral flow tube 6 is connected to the fluid inlet 8 provided on the pump body 3 , the other end is connected to the pump chamber 4 , one end of the first communication groove 7 is connected to the pump chamber 4 , and the other end is connected to the fluid outlet 9 . The lower cover 1 and the upper cover 2 are fixed to each other by bolts, and the whole is sealed. In this embodiment, the first Archimedes spiral flow tube 6 is a c...

Embodiment 2

[0031] Embodiment 2: The main structure of this embodiment is basically the same as that of Embodiment 1. The difference is that this embodiment contains two Archimedes spiral flow tubes, namely the first Archimedes spiral flow tube 6 and the first Archimedes spiral flow tube. Two Archimedes spiral flow tubes 11 . Such as Figure 8 As shown, in this embodiment, the first Archimedes spiral flow tube 6 is a spiral flow tube with the fluid inlet 8 as the center and the starting point is counterclockwise, and the second Archimedes spiral flow tube 11 is A solenoid flow tube arranged clockwise with the fluid outlet 9 as the center and starting point. The fluid inlet 8 and the fluid outlet 9 are symmetrical to the axis of symmetry in the center line of the pump chamber 4, and correspondingly, the first Archimedes spiral flow tube 6 and the second Archimedes spiral flow tube 11 are also symmetrical with the center line of the pump chamber 4. The axis of symmetry in the center line ...

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Abstract

The invention relates to a valveless piezoelectric pump of an Archimedes helical flow pipe, and the valveless piezoelectric pump provided by the invention a pump body, a pump cavity, a piezoelectric vibrator, a first Archimedes helical flow pipe and a first communication groove, wherein the pump body consists of an upper cover and a lower cover; the pump cavity is arranged between the lower coverand the upper cover; the piezoelectric vibrator is contained in the pump cavity; the first Archimedes helical flow pipe and the first communication groove are arranged between the lower cover and theupper cover; one end of the first Archimedes helical flow pipe is connected with a fluid inlet arranged on the pump body, and the other end of the of the first Archimedes helical flow pipe is connected with the pump cavity; one end of the first communication groove is connected with the pump cavity; and the other end of the first communication groove is connected with a fluid outlet. The valveless piezoelectric pump disclosed by the invention has the advantages of simple structure and small flow resistance, is simple and convenient to install, can be produced in batches, is favourable for flow supply control and is especially suitable for transporting the fluid under the 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 an Archimedes spiral flow tube. Background technique [0002] The classification of piezoelectric pumps can be roughly divided into positive displacement pumps and rotary pumps. At present, most piezoelectric pumps are volumetric pumps. According to the presence or absence of pump valves, piezoelectric pumps can be divided into piezoelectric pumps with valves and piezoelectric pumps without valves, such as figure 1 The valved piezoelectric pump is shown. When it is working, the reciprocating vibration of the piezoelectric vibrator causes the periodic change of the volume of the pump chamber, and the change of the volume causes the change of the pressure in the pump chamber, which controls the opening and closing of the pump valve. Because the vibration amplitude of the piezoelectric vibrator of the valved piezoelectric pump is very small, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04
Inventor 张建辉孙学成
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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