Calorimeter and calorimeter comparison

One, calorimeter, calorimeter common faults and causes No. Symptom Cause Remedy 1 Oxygen gas leaks Rubber seals Aging or wear Replace the seals 2 Ignition fails Line failure or poor contact Check that the connection is connected, oxygen warhead and ignition Whether the cap is in good contact, whether the oxygen bomb is in the inner cylinder, the specimen is wet, the oxygenation is too fast, the specimen is wet, the ignition wire is bad, or the cotton wire and the specimen are in poor contact, then the two electrodes are dirty, the sandpaper is used to polish the electrode, the ignition cap is oxidized, the sandpaper is used to polish the ignition. Cap Oxide Short circuit to both electrodes (easy to burn helium and electrode) Replace electrode or helium Reload 3 Sample not completely burned, sample is not flammable Oxygen is not sufficient or oxygen pressure is insufficient. Oxygen time, replace the oxygen cylinder 4 After the ignition, the humidity rises too high, the heat value is too high, the stirrer does not turn, the stirrer shaft is stuck, the line is blocked, and the stirring leaves fall off. Insert a cotton thread into the nylon rod hole connected to the stirring shaft and re-insert the oxygen plug. Good 5 test for a long time does not end the environmental temperature is too high. The external cylinder water temperature is basically the same as the room temperature, or reduce the indoor temperature 6 oxygenation leak oxygen in the seal aging or wear replacement Two rings, calorimeter, calorimeter routine maintenance and inspection of an oxygen bomb calorimeter: After each addition of the oxygen bomb test cleaned and dried, but also should be noted that examination of the following and:

(1) The oxygen bomb of the calorimeter can only be twisted by hand. When the hand feels resistance, it should be stopped. Never try to use a hard twister. After the test is completed, it should be cleaned once.

(2) Bomb caps and valve seats should be flushed and wiped dry after use.

(3) Rinse the cup, scrub the thread, and check for mechanical damage on the cup. Be careful not to invert the cup.

(4) Check the seal ring for wear and damage during combustion. If there is a leak in the seal, replace it.

(5) Check whether the insulation pad and insulation cover are good or not, and check the insulation performance regularly.

(6) Conduct 20 oxygen bombs on a regular basis.

0Mpa water pressure test, after each hydrostatic test, the use of oxygen bombs must not exceed one year (or not exceed 5000 tests).

2. Calorimeter inner tube: After the test, the water in the tube should be discharged to the outer tube, wiped dry and kept clean.

3, test water: It is best to be pure water, and to be regularly replaced to ensure the test reliability and success rate.

Note: In order to use the system safely, the computer equipment must be reliably grounded.