Food factory steam flow meter selection guide

Project Overview

How to choose a steam flow meter for a food factory? In the food production process, steam is an important energy medium, and accurate measurement of its flow is of great significance to ensure the stability of the production process, improve energy efficiency, and achieve cost control. Therefore, choosing a suitable steam flow meter is crucial for food plants.

1. Understand the principle of flow meters

Steam vortex flow meters are often used as steam flow meters in food factories. The principle is that when the fluid passes through the vortex flow transmitter in the pipeline, it The vortex generator of the triangular prism alternates up and down to generate two rows of vortices proportional to the flow rate. The release frequency of the vortex is related to the average speed of the fluid flowing through the vortex generator and the characteristic width of the vortex generator. By measuring the vortex frequency generated by fluid oscillation, the average speed, flow rate and volume of the fluid flowing through the vortex generating body can be calculated.

2. Determine the steam measurement requirements

When selecting a steam vortex flowmeter, you need to clarify the following measurement requirements:

• Measurement range: OK For the steam flow range that needs to be measured, the common flow rate should be controlled in the middle and upper part of the measurable range of the vortex flowmeter; when the flow range exceeds the measurable range of the vortex flowmeter, diameter reduction or diameter expansion can be adopted, but diameter reduction and expansion are not appropriate. Too big.

• Measurement accuracy: Determine the measurement accuracy level according to needs. Currently, the LUB series is available in level 1.5 and level 1.0.

• Working pressure: Understand the working pressure of the steam pipeline to ensure that the selected flow meter can withstand the corresponding pressure.

• Operating temperature: Understand the operating temperature of the steam pipeline and choose a sensor model with a relatively high temperature rating.

3. Consider on-site installation conditions

When selecting a steam vortex flowmeter, you also need to consider on-site installation conditions, including:

• Pipeline vibration: Vortex flow meters are not suitable for measuring pulsating flow. If there are power mechanical equipment such as Roots blowers and reciprocating water pumps in the pipeline system, strong pulsation will be generated. For example, the pulsation frequency is in the vortex frequency band. There will be measurement errors within. Therefore, when selecting the installation location, you should avoid installing the flowmeter near the vibration source, and install anti-vibration and vibration-reducing devices or correct the flowmeter parameters (use it when the vibration is relatively small).

  

• Protection level: According to the on-site environment, select a flow meter with the corresponding protection level to ensure that the equipment can work normally in harsh environments. When installed indoors, choose IP65; when installed outdoors above the ground, choose a protection level above IP65; when installed outdoors in a ditch below the ground, choose IP68 and a separate amplifier to prevent soaking by rain after rain; some are flammable Explosion-proof vortex flowmeters should be used in explosive situations.

4. Compare different types and brands of flow meters

After understanding the basic principles, measurement requirements and on-site installation conditions, you can startCompare different types and brands of steam flow meters. Focus on the following aspects:

• Performance parameters: Compare the measurement range, accuracy, response time and other performance parameters of different flow meters to meet actual measurement needs.

• Stability and reliability: Understand the stability and reliability of flow meters to ensure long-term stable operation and reduce maintenance costs.

• Intelligent degree: Choose a flow meter with intelligent functions such as remote monitoring, data analysis and fault warning to improve management efficiency and reduce labor costs.

• After-sales service: Consider the supplier's after-sales service level, including technical support, maintenance, etc., to ensure that problems encountered during use can be solved in a timely manner.

In summary, many aspects are generally considered when selecting steam flow meters in food factories. If you have relevant needs, you can contact the flow meter manufacturer Qingdao Hesheng Measurement and Control, who will answer your questions at any time about vortex flow meters. Issues such as flow meters, smart heating, energy metering management systems and industry management software.