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Air intake flow measuring method of tubular air inlet pipe of air compressor

A technology for air compressors and air intake flow, which is applied to mass flow measurement devices, volume/mass flow generated by mechanical effects, indirect mass flow meters, etc., can solve the problems of reduced compressor efficiency and low exhaust pressure, and achieve High flow measurement, saving engineering cost and easy maintenance

Inactive Publication Date: 2016-11-16
浙江汽轮成套技术开发有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on an air compressor with a low discharge pressure, if a throttling element is installed on the discharge pipe, the pressure loss will make the low discharge pressure lower and the efficiency of the compressor will be reduced.

Method used

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  • Air intake flow measuring method of tubular air inlet pipe of air compressor
  • Air intake flow measuring method of tubular air inlet pipe of air compressor
  • Air intake flow measuring method of tubular air inlet pipe of air compressor

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.

[0024] Such as figure 1 As shown, the air intake flow measuring method of the cylindrical air intake pipe of the air compressor according to the present invention is characterized in that it comprises the following steps:

[0025] a. Take two measurement points A and B, where measurement point A is located in the intake pipe 1 of the air compressor, and measurement point B is located at the air compressor inlet 2;

[0026] b. Measure the cross-sectional area S1 and fluid velocity V at the measurement point A S1 , air pressure P1, and air pressure P2 at measurement point B; the air pressure at measurement points A and B are measured by pressure transmitters respectively, the fluid flow rate is measured by flow rate transmitters, and the cross-sectional area can be calculated by measuring the cross-sect...

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Abstract

The invention relates to an air intake flow measuring method of a tubular air inlet pipe of an air compressor. The purpose that the provided measuring method has the advantages of being simple in measuring mode, precise in result and low in cost is achieved. According to the technical scheme, the air intake flow measuring method of the tubular air inlet pipe of the air compressor is characterized by comprising the following steps that 1, a measuring point A and a measuring point B are taken; 2, measurement is carried out to obtain the sectional area S1, fluid flow speed VS1 and air pressure P1 at the measuring point A and the air pressure P2 at the measuring point B; 3, the sectional area S1, the fluid flow speed VS1, the air pressure P1 and the air pressure P2 are substituted into a volume flow rate calculating formula, and the volume flow rate of an air inlet of the air compressor is obtained; 4, the sectional area S1, the fluid flow speed VS1, the air pressure P1 and the air pressure P2 are substituted into a mass flow rate calculating formula, and the mass flow of the air inlet of the air compressor is obtained.

Description

technical field [0001] The invention relates to the technical field of gas flow measurement, in particular to a simple method for measuring the intake flow of a cylindrical intake pipe of an air compressor. Background technique [0002] The traditional method of measuring the flow rate usually requires the aid of a throttling element to obtain the flow parameters of the fluid in the pipeline through differential pressure or volume. However, on an air compressor with a low discharge pressure, if a throttling element is installed on the discharge pipe, the pressure loss will make the low discharge pressure lower and the efficiency of the compressor will be reduced. [0003] In order to solve these problems, especially when the operating condition of the air compressor is far away from the surge line, the applicant has designed a simple method to measure the intake air flow in the compressor, which can be passed in the DCS (distributed control system) After a series of convers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/88G01F1/36
CPCG01F1/88G01F1/36
Inventor 金仲超
Owner 浙江汽轮成套技术开发有限公司
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