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1. Is an ultrasonic heat meter a flow meter? Ultrasonic heat meters ≠ flow meters, but their functions partially overlap. one Core difference ① Different uses: - Flow meter: only measures fluid flow, such as counting water flow, gas volume or mass in industrial production. -Ultrasonic heat meter: Comprehensive calculation of heat, such as calculating the heat energy consumed by users based on water flow rate and temperature difference during centralized heating. ② Principle difference: - Flow meter: There are multiple modes such as turbine rotation, differential pressure induction (such as liquid impacting the turbine to generate speed), or volume change (such as gear measuring liquid volume). -Ultrasonic heat meter: By measuring water flow rate through ultrasonic waves and combining it with data from supply/return water temperature sensors, the final value is calculated using the formula [heat=flow rate x temperature difference x heat capacity]. two The key connection is that the ultrasonic heat meter relies on flow data to work, so it has a built-in ultrasonic flow meter module. For example, during winter heating, it first measures the flow rate of hot water (similar to a flow meter), and then calculates the actual energy consumption of each household based on the temperature difference. three Comparison of Application Scenarios - Flow Meter: Single scenario, such as monitoring the total water supply in a water plant or controlling gas delivery in a chemical plant. -Ultrasonic heat meter: In composite scenarios such as heating companies charging based on heat and central air conditioning cooling capacity measurement, dual parameter support for flow and temperature is required. 2. Doppler Ultrasonic Flow Meter Manufacturer
3. Classification of Thermal Energy Meters
Thermal energy meters can be classified into mechanical (including turbine, orifice plate, vortex street), electromagnetic, ultrasonic, and other types according to their different structures and principles.
.1、 Mechanical heat meters refer to heat meters that use mechanical flow meters. The structure and principle of mechanical flow meters are similar to those of hot water meters, with advantages such as simple manufacturing process, relatively low cost, stable performance, and relatively high measurement accuracy. Almost all household heat meters below DN25, both domestically and internationally, use mechanical flow meters. Due to its economy, ease of maintenance, and relatively low requirements for working conditions, mechanical heat meters play a dominant role in heat metering in hot water pipelines.
2、 Ultrasonic heat meter is a general term for heat meters that use ultrasonic flow meters. It calculates the fluid flow rate by using the difference between the speed of ultrasound propagation along the water flow and the speed of ultrasound propagation against the water flow when propagating in a flowing fluid. No special requirements for the medium; The accuracy of flow measurement is not affected by parameters such as temperature, pressure, and density of the fluid being measured. This type of flowmeter is commonly used for heat meters with a diameter of DN40 or above. It has the characteristics of low pressure loss, difficult blockage, and high accuracy.
3、 Electromagnetic heat meters refer to heat meters that use electromagnetic flow meters. Due to extremely high costs and the need for an external power supply, this t