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Soap film flowmeter for measuring large flow

A flowmeter and high-flow technology, which is used in the field of measuring fluid flow that continuously passes through the instrument, can solve problems such as inability to ensure measurement accuracy, achieve ideal measurement conditions, accurate detection data, and solve the effect of accurate measurement

Pending Publication Date: 2020-06-16
青岛巉山环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, there is no soap film flowmeter for large flow measurement, and it is impossible to avoid the double film of the soap film flowmeter. Other methods cannot ensure the measurement accuracy. Aiming at the above defects of the prior art, this solution is proposed to provide a large-scale The soap film flowmeter of the process avoids the large flow soap film flowmeter with double membranes, and is specifically realized through the following scheme

Method used

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  • Soap film flowmeter for measuring large flow
  • Soap film flowmeter for measuring large flow
  • Soap film flowmeter for measuring large flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 2 As shown, the soap film flowmeter for measuring large flow in this embodiment is provided with an upper cavity 1, three soap film pipes, a soap liquid pool 9, a film forming ring 17 and a film forming ring 17 lifting device, and three soap film pipes They are respectively the first soap film tube 4, the second soap film tube 10 and the third soap film tube 12. They are arranged according to the positions of the three vertices of an equilateral triangle. The outer walls of the three soap film tubes are sealed and connected, the upper cavity 1 is sealed and connected with the outer walls of the three soap film tubes, the upper openings of the three soap film tubes are in the upper cavity 1, and the upper cavity 1 and the first soap film tube 4 use the second One upper sealing ring 2 is sealed, the upper cavity 1 and the second soap film tube 10 are sealed with the second upper sealing ring 23, the upper cavity 1 and the third soap film tube 12 are sealed...

Embodiment 2

[0038] Such as image 3 As shown, in this embodiment, on the basis of Embodiment 1, the film forming ring 17 is adjusted, instead of setting a separate soap film area for each soap film tube, but using the same soap film as a whole. Other structures are the same as those in Embodiment 1, and will not be repeated here. Sharing a film-starting ring 17 is easy to operate, and it is convenient to check whether the film is started, instead of checking one by one. Avoid accidental rupture of the soap film in individual areas causing measurement failures.

[0039] During measurement, after pressing the button of the membrane ring 17, release it, and the membrane ring 17 that is stained with the soap film liquid 18 to form a soap film rises under the action of the membrane spring 7, and when it reaches the lower nozzle of the soap film tube, press the The soap film covers the bottom of its pipe orifice, and under the action of the suction port 19 of the upper chamber body 1, the gas...

Embodiment 3

[0041] Such as Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment 2 is that the three soap film tubes are arranged in a straight line, and the soap film tubes are elongated and oval. Other structures are the same as those in Embodiment 2, and will not be repeated here. The soap film tubes are arranged in a line, and a very large soap film will be formed with a perfectly circular film-forming ring 17. From the foregoing, the large soap film is unstable and is also greatly affected by gravity, which may also cause soap film The concave-convex surface makes the time when the nozzle of the soap film tube receives the soap film asynchronous, and the volume of gas flowing through the soap film tube will change, causing errors in the measurement results. The soap film tubes lined up in a line can be suitable for long oval soap film tubes. The short axis of the ellipse is slightly larger than the outer wall of the soap film tube, and the long axi...

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Abstract

The invention belongs to the technical field of measuring the flow of fluid continuously passing through an instrument, and discloses a soap film flowmeter for measuring a large flow. The soap film flowmeter comprises an upper cavity, at least two soap film tubes, a soap liquid pool, a film lifting ring and a film lifting ring lifting device, wherein the upper cavity is connected with the upper portion of the outer wall of each soap film tube in a sealed mode, the film lifting ring is connected with the film lifting ring lifting device, and infrared geminate transistors are arranged on the upper portion and the lower portion of the outer wall of each soap film tube respectively. According to the technical scheme, a plurality of soap film tubes are arranged, so that the capacity of large flow for each soap film tube is dispersed, and the precision of large flow measurement is the same as the measurement precision of each soap film tube; a soap film formed by the outer wall of the soap film tube and the inner wall of the film lifting ring is torn or vibrated to be broken through the crack of the film lifting ring under the action of a film breaking column, so that the film is successfully broken, double films are avoided, meanwhile, high-flow accurate measurement and double-film avoidance are achieved, the measurement condition is idealized, and the detection data is accurate.

Description

technical field [0001] The invention belongs to the technical field of measuring fluid flow continuously passing through an instrument, and in particular relates to a soap film flowmeter for measuring large flow. Background technique [0002] In JJG586-2006 "Soap Film Flowmeter", the People's Republic of China Metrology Verification Regulations, there is a detailed description of the working principle and structure of the soap film flowmeter. In the prior art, the structure of the soap film flowmeter is a soap film tube with a scale. The upper part of the outer wall of the soap film tube is provided with an upper infrared pair tube, and the lower part of the outer wall of the soap film tube is provided with a lower infrared pair tube. The lower opening is the air inlet, and the lower part of the soap film tube is provided with a film forming ring, and a soap film liquid is provided under the film forming ring. The film ring produces a soap film from the soap film liquid, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/52G01F15/00
CPCG01F1/52G01F15/00
Inventor 丁浩宸葛严明王怡茗
Owner 青岛巉山环保科技有限公司
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