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Flow resistance testing device of valveless piezoelectric pump

A valveless piezoelectric pump and testing device technology, applied in the field of fluid machinery, can solve the problems of difficulty in analyzing the trend of resistance action, small resistance coefficient value range, small speed change interval, etc. Stable and accurate test data, good repeatability

Inactive Publication Date: 2013-10-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such test device often has the following problems: 1. the liquid level in the container is highly unstable
Due to the narrow range of flow velocity adjustment, the speed change range is small and the resistance coefficient value range is small ③The resistance coefficient value distribution range is not uniform
Due to the few controllable data points and they are concentrated in a certain fixed area, it is difficult to analyze the trend of resistance

Method used

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  • Flow resistance testing device of valveless piezoelectric pump
  • Flow resistance testing device of valveless piezoelectric pump
  • Flow resistance testing device of valveless piezoelectric pump

Examples

Experimental program
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Embodiment Construction

[0069] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0070] Such as figure 1 , image 3 As shown, the valveless piezoelectric pump flow resistance test device of this embodiment includes a water tank 1, and the water tank 1 is connected to the valveless piezoelectric pump 21 to be tested through a catheter 9, and a one-way valve is provided on the catheter 9 8. The water tank 1 is divided into a water storage tank 12 and a working water tank 13 by a partition 11, the partition 11 is provided with a water inlet 14; the side wall of the working water tank 13 is provided with an outlet hole 16, The outflow hole 16 is connected to the catheter 9 through the one-way valve 8; the working water tank 13 is provided with a water supply assembly for controlling the opening and closing of the water inlet hole 14.

[0071] Such as figure 1 , figure 2 and Figure 10 As shown, the water supply assembl...

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Abstract

The invention discloses a flow resistance testing device of a valveless piezoelectric pump. The device comprises a water tank, wherein the water tank is connected with the to-be-tested valveless piezoelectric pump through a liquid guide pipe, the liquid guide pipe is provided with a one-way valve, the water tank is separated into a water storage tank and a working water tank by a separating plate, the separating plate is provided with a water inlet hole, the side wall of the working water tank is provided with an outflow hole, the outflow hole is connected with the liquid guide pipe through the one-way valve, and the interior of the working water tank is provided with a water feed assembly which is used for controlling the opening and closing of the water inlet hole. Compared with the traditional flow resistance testing device, the flow resistance testing device of the valveless piezoelectric pump has the advantages that the automatic or semi-automatic water feed function is realized, and the stability and accuracy of test data are ensured; the distribution of test data points is uniform, and the action rule can be easily analyzed and researched; and the test process and the test method are more standard, the operation is simple, and the repetitiveness of the data points in certain position is better.

Description

technical field [0001] The invention relates to a device for testing the flow resistance of a piezoelectric pump, in particular to a device for testing the flow resistance of a valveless piezoelectric pump, and belongs to the field of fluid machinery. Background technique [0002] Piezoelectric pumps are small and micro fluid pumps powered by piezoelectric ceramics. They have the advantages of small size, light weight, stable operation, good operability and easy integrated manufacturing. Piezoelectric pump is a pioneer product of micro-pump manufacturing technology, which can be widely used in various civil and industrial applications such as small mobile equipment, home appliances, medical equipment, petrochemical equipment, biomedicine, fine chemicals, aerospace, instrumentation, and IC chip cooling. field. It is highly efficient, energy-saving, and environmentally friendly. It will effectively promote the technological revolution of related industries, improve product ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
Inventor 纪晶张建辉赵淳生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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