High pressure liquid turbine flowmeter

1、 Overview of High Pressure Liquid Turbine Flow Meter
High pressure liquid turbine flowmeter is a precision flow measurement instrument that can be used in conjunction with a flow integrator to measure the flow rate and total amount of liquid. It has the characteristics of simple structure, high measurement accuracy, long service life, simple operation, and easy maintenance. High pressure liquid turbine flow meters are widely used in metallurgy, chemical industry, petroleum, urban construction, environmental protection, food and other fields.
2、 Characteristics of high-pressure liquid turbine flowmeter
The high-pressure liquid turbine flowmeter adopts a fully cemented carbide (tungsten carbide) shielded cantilever beam structure bearing, which integrates the rotating bearing and pressure bearing, greatly improving the bearing life and can work in media with small amounts of sediment and dirt. The sensor adopts a stainless steel structure (2Cr13 for the turbine) with good corrosion resistance. It uses ruby bearings and hard alloy (LT6) shaft sleeves to ensure the service life and long-term stability of the turbine sensor. Samarium cobalt permanent magnet alloy is used as the signal detector, with strong output signals and good magnetic stability, and can work normally in media ranging from 0 to 120 ℃. The high-pressure liquid turbine flowmeter itself has a self rectifying structure, which is small, lightweight, and has a simple structure. It can be combined and disassembled in a short time, making installation and use quite convenient.
3、 Structural characteristics and working principle of high-pressure liquid turbine flowmeter
1. Structural features
The sensor is a hard alloy bearing thrust type, which not only ensures accuracy and improves wear resistance, but also has the characteristics of simple structure, firmness, and easy disassembly and assembly.
2. Working principle
The fluid flows through the sensor housing. Due to the angle between the blades of the impeller and the flow direction, the impulse of the fluid causes the blades to have a rotational torque. After overcoming the friction torque and fluid resistance, the blades rotate. After the torque is balanced, the speed stabilizes. Under certain conditions, the speed is proportional to the flow rate. Due to the magnetic conductivity of the blades, they are in the magnetic field of the signal detector (composed of permanent magnet and coil). The rotating blades cut the magnetic field lines and periodically change the magnetic flux of the coil, causing electrical pulse signals to be induced at both ends of the coil. This signal is amplified and shaped by the amplifier, forming a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the display instrument remotely to display the instantaneous flow rate or total amount of the fluid.
3、 High pressure liquid turbine flowmeter type spectrum

	TXLWGY□	□□□	□	□	□	Explanation
Type	TXLWGY					Basic type+ 5-24 DCV power supply,
	TXLWGB					4-20mA two-wire current output, remote transmission type
	TXLWY					Battery powered on-site display type
	TXLWYC					On site display/4~20mA two-wire current output
state-owned call open up or clear out by poking or jabbing footpath		4				4mm, ordinary turbine flow range 0.04~0.25m3/h
		6				6mm, ordinary turbine flow range 0.1~0.6m3/h
		10				10mm, ordinary turbine flow range 0.2~1.2m3/h
		15				15mm, ordinary turbine flow range 0.6~6m3/h Wide range turbine is 0.4-8m3/h
		20				20mm, normal turbine flow range 0.7-7. m3/h
		25				25mm, ordinary turbine flow range 1-10m3/h
		40				40mm, ordinary turbine flow range 2-20m3/h
		50				50mm, ordinary turbine flow range 4~40m3/h
		80				80mm, ordinary turbine flow range 10-100m3/h
		100				100mm, ordinary turbine flow range 20-200m3/h
		150				150mm, ordinary turbine flow range 30-300m3/h
		200				200mm, ordinary turbine flow range 80-800m3/h
explosion-proof						Unmarked, non explosion proof type
			B			Explosion proof type
accuracy class				A		Accuracy level 0.5
				B		Accuracy level 1
Turbine type					A	Wide range turbine
					B	Ordinary turbine