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technical article
Summarize the installation method of the flowmeter
2012-2-11 10:02:13

(又称笛形均速管流量计和托巴管流量计)属于差压式流量计。 Annubar flowmeters (also known as flute-shaped averaging tube flowmeters and toba tube flowmeters) are differential pressure flowmeters. It uses the pitot tube measurement principle to measure the middle of the dynamic digital pressure gauge upstream of the block and the static digital pressure gauge downstream.

The formed pressure difference can achieve the purpose of measuring flow. The measuring pipe diameter is between DN20 and DN12000. Annubar flowmeters are mainly used for the measurement of various energy sources such as liquids, fuel gases, vapors and gases in industrial processes.

Has high stability and repeatability. The design theory of Annubar flowmeter is in accordance with the principle of Bohr's equation and can be checked by the JG / 640-90 procedure.


Annubar flowmeter (average speed tube flowmeter) has a wide measurement range and is suitable for the measurement of most on-site media. Is a recognized energy-saving flow meter. Today, I will give you a detailed summary of the general installation of Annubar flowmeters.

For production enterprises, everyone knows that Annubar flowmeters usually use direct plug-in (that is, welding) connection methods for field installation.

1. After the direction is determined, make a hole in the pipe with the help of a hole opener (the conventional hole size is 25mm)

2. The first prerequisite for installation is to confirm whether the on-site straight pipe section meets the requirements. For specific requirements, you can refer to the relevant manual or consult the technical department of the company, and then determine the installation direction of the flowmeter according to the direction of the fluid on site.

a, single-sided support; that is, a hole is opened in the pipeline according to the size of the Annubar sensor. This installation method is suitable for pipelines with a diameter of less than 600mm on the site, because in a small-aperture installation method, this installation method is sufficient.

In order to ensure the stability of the sensor itself and the measurement accuracy.

b; double-sided support; after determining the installation direction, open two holes of the same size in the symmetrical position on the pipe, which is opposite to the single-sided support above, that is, for the measurement of large diameter, in order to ensure the stability of the sensor To use

Double-sided fixed way to install Annubar flowmeter.

3. Finally, the entire weld is welded, and the welded part is rust-proofed.


For the on-site cement pipeline, for the convenience of on-site installation, the company will also provide a steel plate with the Annubar flowmeter at the same time. The steel plate and the on-site pipeline are bolted to each other. (Aniu

Bar flowmeter (average speed tube flowmeter) has a wide measurement range and is suitable for the measurement of most on-site media. Is a recognized energy-saving flow meter. Today, I will give you a detailed summary of the general installation of Annubar flowmeters. For production

Everyone at the company knows that Annubar flowmeters usually use direct plug-in (that is, welding) connection methods for field installation.

插入管道中,用点焊的方式将传感器固定在正确的位置上,但是要求探头部分在整个管道内径且与中心线在同一条中心线上 4. Insert the Annubar flowmeter into the pipeline, and fix the sensor in the correct position by spot welding, but the probe part is required to be within the entire diameter of the pipeline and on the same centerline as the centerline

1. The first premise of installation is to confirm whether the on-site straight pipe section meets the requirements. For specific requirements, refer to the relevant manual or consult the technical department of the company, and then determine the installation direction of the flow meter according to the direction of the on-site fluid.

2. After the direction is determined, make a hole in the pipe with the help of a hole opener (the conventional hole size is 25mm)

a, single-sided support; that is, a hole is opened in the pipe according to the size of the Annubar sensor. This installation method is suitable for pipes with a diameter of less than 600mm on the site, because in a small-aperture installation method, this installation method

It is enough to ensure the stability of the sensor itself and the measurement accuracy.

b; double-sided support; after determining the installation direction, open two holes of the same size in the symmetrical position on the pipe, which is opposite to the single-sided support above, that is, for the measurement of large diameter, in order to ensure the stability of the sensor To pick

Install Annubar flowmeter with double-sided fixing.

3. Insert Annubar flowmeter into the pipe, and fix the sensor in the correct position by spot welding, but the probe part is required to be in the entire pipe inner diameter and on the same centerline with the centerline.

4. Finally, the entire welding joint is completely welded, and the welding part is rust-proofed.


For the on-site cement pipeline, for the convenience of on-site installation, the company will also provide a steel plate with the Annubar flowmeter at the same time. The steel plate and the on-site pipeline are bolted to each other.


适用于: Annubar flowmeter is suitable for:


1.Gas and liquid transportation


2. Energy research, steam boiler heat rate, water pump efficiency, gas compressor efficiency and fuel consumption


3. Process control: input / output, ratio, balance; cooling water or air, steam heating.


4. Feeding in the chemical industry:


5. Load balance: pump compressor, cooler, filter;


Annubar flowmeter can provide you with the most convenient measurement method. The flow meter in the ANB series produced by our factory can be used for maintenance and cleaning in the case of production of unbelievable cars. It is especially suitable for the flow of large-caliber pipes. measuring

Annubar has brought great convenience to industrial production.