Card-mounted vortex flowmeter parameters
The vortex flowmeter is based on the Karman vortex principle to measure the volume flow of gas, steam or liquid, the volume flow or mass flow of standard conditions.
View MoreThe steel strip level gauge is an applied liquid level measuring instrument used in petrochemical, electric power, metallurgy, food and other industries.
The steel strip level gauge is an applied liquid level measuring instrument used in petrochemical, electric power, metallurgy, food and other industries. It has the advantages of simple structure, reliable operation, high measurement accuracy and strong adaptability. It is one of the currently used liquid level measuring instruments.
1. Working principle of steel strip level gauge
The working principle of steel strip level gauge is to use the expansion and contraction of steel strip to measure changes in liquid level. Its structure mainly includes:
Steel strip: The steel strip is the core component of the liquid level meter. It is usually made of stainless steel or other corrosion-resistant materials and has good elasticity. One end of the steel strip is fixed on the fixed bracket of the liquid level gauge, and the other end is connected to the measuring mechanism. Measuring mechanism: The measuring mechanism usually uses a potentiometer or a magnetic sensor. The potentiometer measures the expansion and contraction of the steel strip, converts the displacement into an electrical signal, and then amplifies and converts it to display the liquid level value. The magnetic sensor senses the expansion and contraction of the steel strip by measuring changes in the magnetic field of the steel strip, thereby achieving liquid level measurement. Float: The float is installed at the bottom of the liquid level gauge and connected to the measuring mechanism through a steel belt. As the liquid level changes, the float moves up and down in the liquid, driving the steel belt to expand and contract, thereby achieving liquid level measurement. Guide wheel: The guide wheel is used to guide the movement of the steel belt and prevent the steel belt from deflecting during movement. Fixed bracket: The fixed bracket is used to fix the steel belt and guide wheel to ensure the structural stability of the liquid level meter.
When the liquid level changes, the float moves up and down in the liquid, driving the steel strip to expand and contract. The measuring mechanism converts the expansion and contraction of the steel strip into an electrical signal, and amplifies and converts it, which will eventually The level value is displayed on the meter. The measuring range of the steel strip level gauge depends on the length of the steel strip and the accuracy of the measuring mechanism, and can generally reach several meters to dozens of meters.
2. Types of steel strip level gauges
According to different measuring mechanisms, steel strip level gauges can be divided into the following types:
Potential Instrument-type steel strip level meter: The potentiometer-type steel strip level meter is an applied type. Its measuring mechanism uses a potentiometer, which is an electrical component that changes the resistance value by changing the position of the sliding contact. When the steel strip expands and contracts, the sliding contact of the potentiometer moves accordingly, thereby changing the resistance value, generating an electrical signal proportional to the amount of steel strip expansion and contraction, and finally displaying the liquid level value. Magnetic sensor type steel strip level gauge: The magnetic sensor type steel strip level gauge uses a magnetic sensor as the measuring mechanism. It uses the change in the magnetic field caused by the expansion and contraction of the steel belt to sense the displacement of the steel belt, convert it into an electrical signal, and finally displays the liquid level value. Digital steel strip level gauge: The digital steel strip level gauge is a new type of liquid level gauge developed in recent years. Its measuring mechanism uses a digital sensor, which directly converts the expansion and contraction of the steel strip into a digital signal, and The liquid level value is shown on the digital display. Digital steel strip level gauge has the advantages of high accuracy, good stability and easy maintenance.
3. Advantages and disadvantages of steel strip liquid level gauge
Steel strip liquid level gauge has the following advantages:
Simple structure and reliable operation: steel strip liquid level gauge The structure of the bit meter is simple, with only a few main components, and it is easy toInstallation and maintenance. High measurement accuracy: The measurement accuracy of the steel strip liquid level meter can reach ±0.5%FS, which is suitable for various occasions. Strong adaptability: The steel belt level gauge can be adapted to the measurement of various media, including water, oil, acid, alkali, etc. At the same time, it is also suitable for measurement in various pressure environments, and the working pressure can reach several MPa. Long service life: The steel belt level gauge is made of corrosion-resistant materials, has a simple structure, is not easily damaged, and has a long service life.
The steel strip level gauge also has some disadvantages:
Limited measuring range: The measuring range of the steel strip level gauge is limited by the length of the steel strip and the accuracy of the measuring mechanism. Generally, it can only Reaching tens of meters. Susceptible to external interference: The measurement signal of the steel strip level gauge is easily interfered by external magnetic fields, temperature and other factors, so it needs to be calibrated regularly to ensure its measurement accuracy.
IV. Application of steel belt level gauge
The application of steel belt level gauge is mainly used in the following aspects:
Petrochemical industry: petroleum In the chemical industry, steel belt level gauges are mainly used to measure the liquid level of storage tanks, reactors, towers, etc. to control the production process. Electric power industry: In the electric power industry, steel strip liquid level gauges are mainly used to measure the liquid level of boiler feed water tanks, circulating pools, etc., to ensure the safety of boiler operation. Metallurgical industry: In the metallurgical industry, steel strip level gauges are mainly used to measure the liquid level of ladles, molten pools, silos, etc. to control the production process. Food industry: In the food industry, steel belt level gauges are mainly used to measure the liquid level of storage tanks, fermentation tanks, filling tanks, etc., to control the production process. Other industries: In addition to the above industries, steel strip level gauges are also used in environmental protection, papermaking, pharmaceutical and other industries.
5. Selection of Steel Strip Level Gauge
To select a suitable steel strip level gauge, you need to consider the following factors:
Measurement medium: Different media have different requirements for steel strip level gauges. It is necessary to select the appropriate steel strip material and measuring mechanism according to the properties of the medium. Measuring range: Select the appropriate steel strip length and measuring mechanism according to the range of the liquid level to be measured. Measurement accuracy: Choose the appropriate measurement mechanism and display according to the requirements for measurement accuracy. Working environment: Select the appropriate steel strip material and measuring mechanism according to the temperature, pressure and other factors of the working environment. Installation method: Select the appropriate liquid level gauge type and accessories according to the installation method.
6. Maintenance of the steel strip liquid level gauge
In order to ensure the normal operation of the steel strip liquid level gauge, regular maintenance is required, which mainly includes the following aspects:
Regular inspection: Regularly check the appearance, connecting wires, measuring mechanism, etc. of the steel strip liquid level gauge, and deal with any problems found in a timely manner. Cleaning and maintenance: Clean the steel belt level gauge regularly according to the working environment to remove dirt and ensure its normal operation. Calibration check: Calibrate the steel strip level gauge regularly to ensure its measurement accuracy. Replace spare parts: When the steel belt liquid level meter fails or parts are damaged, replace spare parts in time to ensure its normal operation.
7. The future development trend of steel strip level gauge
With the continuous development of technology,development, the future development trend of steel belt level gauges mainly includes the following aspects:
Intelligence: The future steel belt level gauges will be more intelligent and can automatically adjust measurement parameters according to changes in the environment. Improve measurement accuracy and stability. Digitalization: The steel strip level gauge in the future will be more digital and can transmit measurement data to a computer platform in real time, making it convenient for users to analyze and manage data.
The magnetic inductive flowmeter industry, these are successful cases with comparable and reference value.
The vortex flowmeter is based on the Karman vortex principle to measure the volume flow of gas, steam or liquid, the volume flow or mass flow of standard conditions.
View MoreThe vortex flowmeter is based on the Karman vortex principle to measure the volume flow of gas, steam or liquid, the volume flow or mass flow of standard conditions. volumetric flowmeter.
View MoreAs metal tube float flowmeters are used in more and more fields and in more and more enterprises, products that can meet the needs of different working environments are launched.
View MoreHangzhou Economic Development Area,Hangzhou 310018,China