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Pore plate flowmeter

An orifice plate flowmeter and flowmeter technology, applied in the field of flowmeters, can solve the problems of heavy orifice plate, inconvenient use, and high manufacturing cost, and achieve the effects of convenient processing, cost saving, and low cost

Pending Publication Date: 2019-01-04
山西天地王坡煤业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The orifice plate of the existing orifice flowmeter is heavy, and it needs two people to carry it to the installation site, which is inconvenient to use; to install the orifice flowmeter, the orifice flowmeter needs to be fixed on the bracket, with many parts and complicated structure. High cost and high installation cost; complex structure and difficult installation

Method used

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  • Pore plate flowmeter

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention is not limited to these embodiments, and all changes or equivalent substitutions that do not depart from the concept of the present invention are included within the protection scope of the present invention .

[0016] Such as figure 1 As shown, the orifice flowmeter of the present invention includes a flowmeter straight pipe 1, the length of the flowmeter straight pipe 1 is greater than 10 times the pipe diameter; the right end of the flowmeter straight pipe 1 is provided with an air inlet 2, and the left end is provided with an outlet Air port 6; Pitot tube pressure-taking hole 3, first-concentration gas-taking hole 4 and second-concentration gas-taking hole 5 are arranged on the pipe body in sequence from right to left;

[0017] The distance between the pitot tube pressure taking hole 3 ...

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Abstract

The invention discloses a pore plate flowmeter, which comprises a flowmeter straight tube, wherein the length of the flowmeter straight tube is greater than the10-time tube diameter; the right end ofthe flowmeter straight tube is provided with an air inlet, and the left end of the flowmeter straight tube is provided with an air outlet; the tube body is provided with a pitot tube pressure gettinghole, a first concentration air getting hole and a second concentration air getting hole in sequence from right to left; a distance between the pitot tube pressure getting hole and the air inlet is 5-6 times of the tube diameter, and a distance between the pitot tube pressure getting hole and the first concentration air getting hole is 3-4 times of the tube diameter; a sealing cover is arranged out of the pitot tube pressure getting hole; the first concentration air getting hole and the second concentration air getting hole are independently provided with an air tap; a sealing rubber tube detachably covers the outer surface of the tube body between the first concentration air getting hole and the second concentration air getting hole; and two ends of the rubber tube cover the first concentration air getting hole and the second concentration air getting hole, wherein the flowmeter straight tube is made of PVC (polyvinyl chloride) materials. The pore plate flowmeter has the advantages ofbeing reasonable in design, light in structure and convenient in use, and gas extraction efficiency can be effectively improved.

Description

technical field [0001] The orifice flowmeter of the invention belongs to the technical field of flowmeters. Background technique [0002] The orifice flowmeter is one of the commonly used flowmeters. It is often used to detect the concentration, negative pressure and flow rate of the drainage borehole in the underground construction. The existing orifice flowmeter includes the front flange and the orifice arranged in sequence from the right front to the rear. Plate and rear flange, and pass through the front flange, orifice plate and rear flange with bolts and fix them. The orifice plate of the existing orifice flowmeter is heavy, and it needs two people to carry it to the installation site, which is inconvenient to use; to install the orifice flowmeter, the orifice flowmeter needs to be fixed on the bracket, with many parts and complicated structure. High cost and high installation cost; complex structure and difficult installation. Contents of the invention [0003] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/42
CPCG01F1/42
Inventor 张宏杰王力杰杨腾飞赵凯凯刘向前
Owner 山西天地王坡煤业有限公司
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