Common gas path faults and treatment methods of intelligent sulfur analyzer - Database & Sql Blog Articles

When Hebi Yinghua Instrument Co., Ltd. measures the calorific value of coal, methanol, gasoline, heavy oil, and diesel, certain checks are necessary to ensure accurate results. If the analysis shows a low reading, you should close the valve on the filter switch and observe whether the float in the "pumping" flowmeter slowly descends. If it can drop below 1L/min, it indicates good airtightness. Otherwise, there might be a leak or blockage in the airway. When the pneumatic system fails, follow these steps for troubleshooting: 1. First, check the silicone rubber tube from the exhaust pipe joint of the quartz tube in the high-temperature furnace to the air switch. Make sure it is not damaged and replace it if needed. This part tends to break easily at the suction pipe joint. 2. Check the Vaseline on the filter switch to ensure it provides proper sealing. Apply Vaseline evenly and verify that the absorbent cotton inside the filter switch is suitable—enough to filter the gas path without being too dense or causing blockage. 3. Inspect the inlet and outlet silicone rubber tubes of the electrolysis cup. Ensure the joints are secure and re-install them if necessary to confirm no leaks. 4. Check the sealing rings on the upper and lower joints of the drying pipe. Apply Vaseline to prevent air leakage and make sure there is no silica gel falling out from the lower joint, which could block the gas path. Adjust the one-way throttle valve in the gas path so that the pumping capacity is approximately 2.0L/min and the blowing flow rate is around 1200±200mL/min. Lock the one-way throttle valve to prevent the micro vacuum pump from vibrating and changing the flow rate. 6. Check whether the micro vacuum pump (exhaust pump) is faulty or leaking. If any issues are found, replace it with a new unit (it's recommended to use original accessories). Original link: http:// This detailed maintenance and calibration process ensures the accuracy and reliability of the calorific value measurements, helping to maintain the performance of the equipment over time. Regular checks and timely repairs are essential to avoid errors and prolong the lifespan of the instruments.

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