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1. Structure of V-cone flowmeter
V-cone flowmeter is a new type of differential pressure flow measurement device that uses a pointed cone installed coaxially in the measuring tube as the throttling element. It is based on the principle of Venturi tube measurement and integrates the advantages of classic Venturi tube, annular orifice plate and wear-resistant orifice plate. Due to its special structural form, the V-cone flowmeter has the following characteristics:
1. The upstream and downstream straight pipe sections are required to be relatively short: the length of the upstream straight pipe section is 0-3d, and the length of the downstream straight pipe section is 0-1d.
2. Accuracy: ± 0.5%; The repeatability is 0.1%; The range ratio reaches 15:1.
3. Anti dirt and low pressure loss.
4. It has the function of flow regulation and mixing of fluids.
5. Easy to install, it is an ideal leak resistant flowmeter for technical transformation; 6. Maintenance free disassembly or minimal maintenance workload.
Schematic diagram of 2. V cone flowmeter
nominal diameter: Φ 15- Φ 2000 measuring medium: liquid, gas, steam measuring medium temperature range: -200 ℃~+800 ℃ pressure level: dispersion 1.0MPa~10.5MPa accuracy level: 0.5 level, 1.0 level, 1.5 level, 2.5 level body material: cone material is stainless steel, pipeline and flange are carbon steel.
. (Other material agreement supply) β value range: 0.45... 0.85 nominal diameter: Φ 80- Φ 2000 measuring medium: liquid, gas, steam measuring medium temperature range: -200 ℃~+800 ℃ pressure level: 1.0MPa~10.5MPa accuracy level: 0.5, 1, 1.5, 2.5 table body material stool: cone material is stainless steel, pipeline, flange is c
1.0MPa~10.5MPa accuracy level: 0.5, 1, 1.5 and 2.5 grade body materials: The cone material is stainless steel, and the pipes and flanges are made of carbon (other materials are supplied according to the agreement). β value range: 0.45... 0.85
3. Discussion: What flowmeter is used to measure hydrogen gas
When measuring hydrogen gas, a V-cone flowmeter can be used. The following is a detailed explanation of its applicability and characteristics: The medium adaptability of the V-cone flowmeter. The V-cone flowmeter belongs to the differential pressure flowmeter, and its core measurement principle is to calculate the flow rate by detecting the differential pressure signal generated when the fluid flows through the conical throttling device. This design enables it to have a wide range of medium compatibility, capable of measuring all gases (including hydrogen, natural gas, air, etc.) and liquids (such as water, oil, etc.), especially suitable for flow monitoring of flammable and explosive gases such as hydrogen. Figure: Schematic diagram of V-cone flowmeter structure (throttling cone and differential pressure detection device). The core advantage of V-cone flowmeter is small pressure loss: the streamlined design of the conical throttling device significantly reduces energy loss when fluid passes through. Compared with conventional orifice flowmeters, pressure loss can be reduced by more than 70%. This characteristic is particularly important for hydrogen measurement, as it can avoid measuremen
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