After each day's testing, it is essential to perform regular inspections and maintenance on the equipment to ensure that the instrument remains in optimal working condition and to extend its service life. Proper care of the coal calorimeter and related components can significantly improve accuracy and reliability. Below are common issues and maintenance procedures for the calorimeter equipment:
1. **Oxygen Bomb**: In addition to cleaning and drying the oxygen bomb after each test, the following points should be carefully checked:
(1) The oxygen bomb should only be tightened by hand. If resistance is felt, stop immediately and do not use any tools to force it. It should be cleaned thoroughly after every daily test.
(2) The elastic cap and valve seat must be rinsed and dried after each use to prevent residue buildup.
(3) The inner cup should be rinsed, the threads scrubbed, and the cup inspected for any mechanical damage. Never invert the cup during handling.
(4) Check the seal for wear or damage after combustion. If air leakage is detected, replace the seal immediately to maintain airtightness.
(5) Inspect the insulation mat and sleeve for damage and ensure they remain intact. Regular insulation checks are recommended.
(6) Conduct a 20.00 MPa water pressure test on the oxygen bomb periodically. After each test, the bomb should not be used for more than one year or 5,000 tests, whichever comes first.
2. **Calorimeter Cylinder**: After each test, drain the water from the inner cylinder into the outer cylinder and wipe it dry to keep it clean and free from contamination.
3. **Test Water**: It is advisable to use distilled or deionized water for testing. Replace the water regularly to ensure consistent and accurate results.
**Note**: For safe and efficient operation, ensure that all computer equipment is properly grounded to prevent electrical interference and protect the system. Regular maintenance not only enhances performance but also ensures the longevity of your calorimeter system. Always follow the manufacturer’s guidelines for specific procedures and safety precautions.
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