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Flowmeter for laminar flow

A laminar flow flowmeter and pressure tube technology, which is used in the detection of fluid flow by measuring differential pressure, volume/mass flow generated by mechanical effects, etc. High problems, to achieve the effect of low production cost, reduced production cost and high measurement accuracy

Active Publication Date: 2015-11-25
陕西易度智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a laminar flow meter to solve the problems that the existing laminar flow meter is too expensive and difficult to further improve the measurement accuracy and flow range

Method used

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  • Flowmeter for laminar flow
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  • Flowmeter for laminar flow

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The main body 2 adopts a hollow cylinder structure with a wall thickness of 25mm and a length of 100mm, and a square through hole with a size of 15*15mm. There are two pressure introduction holes in the axial direction of the main body 2, which communicate with the through holes on the main body 2, respectively located on both sides of the laminar flow element 8, and the diameter of the holes is 3 mm. The main body 2 can be made of materials such as stainless steel, aluminum alloy or plastic.

[0024] The upstream pressure introduction pipe 4 and the downstream pressure introduction pipe 9 are respectively fixed on the two pressure introduction holes, and the fixing method can be threaded connection or welding. The upstream pressure induction pipe 4 and the downstream pressure induction pipe 9 can be made of materials such as stainless steel. The upstream pressure introduction pipe 4 and the downstream pressure introduction pipe 9 are respectively connected with the hi...

Embodiment 2

[0035] In the laminar flow meter designed in the present invention, the discharge method of the solid round rods 11 in the laminar flow element 8 can also be closely arranged in a fork row, and the specific scheme refers to the method in the first embodiment. Compared with the first embodiment, the laminar flow meter designed by the technical scheme adopted in this embodiment has a more stable laminar flow, higher measurement accuracy, and can adapt to a wider flow range.

Embodiment 3

[0037] In the laminar flowmeter designed in the present invention, the laminar flow element 8 can be made of a solid round rod 11 with a diameter of 3 mm. For a specific solution, refer to the method of using a solid round rod 11 with a diameter of 1 mm to make a laminar flow element. Compared with the first embodiment, the laminar flow meter designed in this embodiment has poorer laminar flow stability and a slightly lower applicable flow range, but the manufacturing cost is lower.

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Abstract

The invention discloses a flowmeter for laminar flow. The flowmeter comprises end covers, a main body, adjustment cylinder bodies, an upstream pressure guide tube, gaskets, gauze elements, a differential pressure transducer, a laminar flow element and a downstream pressure guide tube, the laminar flow element is composed of a hollow cylinder body and a solid round bar, and the two sides of the laminar flow element are each provided with the corresponding gauze element, the corresponding gasket and the corresponding adjustment cylinder body in sequence. Compared with an existing flowmeter for laminar flow, the flowmeter is lower in production cost, higher in measurement precision and wider in applicable flow range.

Description

technical field [0001] The invention relates to the field of flow measurement. Background technique [0002] A laminar flow meter is a differential pressure flow meter composed of a laminar flow element and a differential pressure sensor. Fluid flow is measured by measuring the differential pressure across the laminar flow element, which is characterized in that the flow rate is directly proportional to the differential pressure. [0003] At present, the laminar flow elements used in laminar flow meters are generally made of capillaries, allowing the fluid to flow through the capillaries to form a laminar flow, and then a number of capillaries are bundled to form a laminar flow element; or rolled by corrugated plates and flat plates, allowing the fluid to flow through The gap between the corrugated plate and the flat plate forms a laminar flow. For example, the invention patent of application number CN201310341942.1 discloses a laminar flow generating body used in a gas flo...

Claims

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Application Information

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IPC IPC(8): G01F1/36
CPCG01F1/36
Inventor 张凯王筱庐王文东王泽元肖攀唐晓晨边陇峰
Owner 陕西易度智能科技有限公司
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