09,22,2026 37 views
1. What is a heat meter?
A heat meter is an instrument used to measure heat, also known as a thermal energy meter or heat meter. It is mainly used to record and measure the heat consumption in heating, air conditioning, industrial production and other fields, helping users with energy-saving management and cost settlement.
What is the working principle of a heat meter?
A heat meter calculates the heat energy transferred to the user by measuring the temperature difference between the cold and hot water flowing through the pipeline. It consists of two parts: a temperature sensor and a flow rate sensor. Temperature sensors are installed at the inlet and outlet to measure the temperature of cold and hot water; The flow velocity sensor is installed on the pipeline to determine the amount of water flowing through by measuring the water flow velocity.
How does a heat meter work?
Firstly, the temperature sensor continuously records the temperature of the cold and hot water at the inlet and outlet, and transmits the data to the control system. At the same time, the flow velocity sensor will also monitor the flow velocity data inside the pipeline in real time and send it to the control system.
Types of heat meters
1. Mechanical heat meter
A mechanical heat meter measures hot water by measuring the speed of the impeller. According to the internal structure, it can be divided into three types: single beam, multi beam, and standard core multi beam.
2. Ultrasonic heat meter
Ultrasonic heat meter measures the flow rate of hot water through ultrasonic radiation method. There are no movable parts inside the measuring chamber, so there is no requirement for the composition or impurity content of the medium.
3. Electromagnetic heat meter
An electromagnetic calorimeter measures the flow rate of hot water according to Faraday's law, and like ultrasonic waves, it does not have any movable parts inside. Of course there are alsoThe difference is that it has requirements for the conductivity of the heating medium (>10uS/cm, which can be met by cleaner water).
Secondly, the control system will calculate the actual heat energy value transmitted to the user based on temperature difference and flow rate data, and display it on the dashboard. Users can understand their thermal energy consumption through the numbers on the dashboard.
