The comprehensive test bench for breathing valves is a device used to test the performance of breathing valves. A breathing valve is a pressure regulating device used for storage tanks and containers, which maintains a balance between the internal pressure of the tank and the external atmospheric pressure to prevent equipment damage caused by excessive positive or negative pressure. The comprehensive test bench for tank breathing valves simulates the working environment of breathing valves to test their opening, closing performance, and sealing under different pressure conditions.
The comprehensive test bench for breathing valves is mainly used to test the function of breathing valves under different working conditions of storage tanks. When the gas pressure inside the storage tank increases during positive pressure operation, the breathing valve needs to open at the set positive pressure to release excess gas. When the gas pressure inside the storage tank decreases during negative pressure operation, the breathing valve opens at the set negative pressure to draw in external air to balance the internal pressure. The test bench simulates the positive and negative pressure conditions inside the storage tank by increasing or decreasing pressure, in order to test the opening pressure, closing pressure, sealing performance, and discharge performance of the breathing valve.
The comprehensive test bench for tank breathing valves is widely used in the tank and container manufacturing industry to test the performance of breathing valves on tanks used for storing volatile, flammable, or toxic substances. The petroleum, chemical, pharmaceutical and other industries ensure that storage tanks or reactors can maintain pressure balance during operation to prevent leaks or explosions. Environmental protection industry detects breathing valves in exhaust gas treatment systems to prevent harmful gas leaks. Its main components are.
Pneumatic system: A regulating system that provides positive and negative pressure, usually a pneumatic pump, capable of simulating pressure changes in the gas inside the storage tank.
Pressure regulating device: It can accurately control the positive and negative pressure applied during the testing process, ensuring that the testing process matches the actual working conditions.
Pressure sensors and detectors: Real time monitoring of pressure changes on both sides of the breathing valve during the testing process, recording the opening and closing pressure points to ensure the accuracy of the test results.
Sealing system: Ensure that gas does not leak during the testing process and can effectively detect the sealing of the breathing valve.
Pressure sensor and detector: Monitor the gas pressure changes during the positive pressure testing process, record key parameters such as the opening pressure and closing pressure of the breathing valve.
Control system: The test bench adopts manual valve adjustment, PLC (programmable logic controller), and computer control system to automatically perform positive pressure, negative pressure, and sealing tests, and collect and store data in real time. The control system can also analyze and process data to generate test reports.
Data acquisition module: connected to pressure sensors, flow meters and other devices, responsible for real-time collection of various parameters during the testing process, such as pressure, flow rate, leakage rate, etc.
Display panel: used for real-time display of test data, such as current pressure, valve status, etc. The operator can intuitively monitor the test data through the display screen.
Overpressure protection system: In order to avoid pressure exceeding the tolerance range of equipment and breathing valves during testing, the test bench is usually equipped with an overpressure protection system to ensure the safety of equipment and personnel.
Emergency stop device: In the event of an unexpected situation, it can immediately stop testing, release pressure in the system, and protect testing equipment and personnel.
Exhaust system: used to safely discharge the gas inside the system after the test is completed, especially when conducting positive pressure testing, excess gas needs to be safely discharged through the exhaust device.
The test bench can accurately control positive and negative pressure, ensuring that the test results match the actual working conditions. Modern respiratory valve comprehensive test benches are often equipped with automated control and data acquisition systems, which can generate test reports and improve testing efficiency. Capable of conducting multiple tests simultaneously for positive pressure, negative pressure, sealing, and discharge performance, meeting the testing needs of different types of breathing valves. This test bench can effectively ensure the working performance of the breathing valve and provide reliable guarantees for the safe operation of storage tanks and container systems.