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Application of Micro Differential Pressure Sensor in HVAC Field

Differential pressure sensors are widely used in oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemical, oil wells, electric power, ships, machine tools, pipeline air supply, boiler negative pressure and many other industries.


1. Differential pressure sensor is used for building automation


Modern building automation and HVAC technologies intelligently match energy production, energy distribution, air conditioning and heat recovery to ensure that energy is used in a resource and cost efficient manner.


We provide high-quality sensor solutions for building automation and HVAC systems, from individual sensors to complex customer-specific sensor systems that help improve the energy efficiency of heating, ventilation and air conditioning systems. We offer a range of sensor technologies for measuring small differential pressures in air conditioning technology and building automation.


2. Differential pressure sensor is used for air volume control


Variable Air Volume (VAV) systems are an effective solution that can reduce the primary investment and operating costs for owners. Maintaining proper outside air dilution rates, air movement, and air distribution are challenges for VAV system designers.


In order to ensure the air circulation of large shopping malls, underground places and intelligent buildings, variable air volume control must be carried out. Too much air will waste electricity, and too little air will affect people's breathing comfort. Therefore, it is necessary to control the air volume by monitoring the air pressure.


3. Differential pressure sensor is used for central air conditioning filter monitoring


The air filter is a critical component of any HVAC system, and it needs to operate efficiently at all times. By using differential pressure sensors to measure the pressure across the filter, the building automation system can monitor airflow at all times.


Decreased airflow over time may indicate that the filter needs to be replaced or cleaned. If not replaced, the system may need to use more energy to restore airflow to the desired level, which can also introduce additional wear and tear to other components in the system.


4. Differential pressure sensor is used for pipeline static pressure measurement


Differential pressure sensors play an important role in transporting natural gas through thousands of natural gas pipelines. It can be used to monitor natural gas pressure, measuring very low inlet and outlet pressures.


Special approval options such as ATEX Intrinsic Safety are available if natural gas may be present in the local atmosphere. If the gas pressure in the gas and gas lines is too high, a leak or even an explosion can occur. If the air pressure is too low, it will affect people's daily use, so it is necessary to monitor the air pressure of each node through the differential pressure sensor, so that the air pressure is within a reasonable range.


5. Differential pressure sensor is used for oven pressurization and furnace air pressure control


The differential pressure sensor ensures the controllability of the air pressure in the oven by detecting and controlling the air pressure at each point in the air supply channel and the negative pressure at each point in the air induction channel. Controlling the negative pressure of the furnace and the differential pressure of the supply air volume can ensure efficient fuel combustion and environmental protection. Due to environmental regulations and safety risks, boilers require accurate and reliable system monitoring to improve operational efficiency and prevent premature failures.