Calorimeter series daily maintenance and inspection

Daily maintenance and inspection of the calorimeter series The following inspections and maintenance should be performed after the end of the daily test, so that the coal testing instruments can always maintain good working conditions and can extend the service life.

l. Oxygen Bombs: In addition to cleaning and drying oxygen bombs after each test, the following points should also be noted and inspected:

1 The oxygen bomb can only be twisted by hand. When the hand feels resistance, it should be stopped. Never use a tool to tighten it. After the test is completed every day, it should be cleaned once.

2Bombs and seats should be flushed and wiped dry after use.

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

4 Check whether the seal ring is worn out and damaged during combustion. If there is leakage of the seal, replace it.

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

6 Periodically conduct a 20.0Mpa hydrostatic test on the oxygen bomb. After each hydrostatic test, the oxygen bomb must not be used for more than one year (or no more than 5000 tests).

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

3, test water: the best use of pure water, and to be regularly replaced to ensure the reliability of the test and the success rate of coal quality heat testing equipment for laboratory requirements as the determination of coal calorific value in the analysis of coal analysis is the most important indicators First, coal's calorific value measuring equipment has strict requirements for coal laboratories.

(1) The calorific value measurement room in the coal laboratory shall be used as a dedicated room for measuring calorific value, and no other test work may be conducted indoors;

(2) Curtains should be provided indoors to avoid direct sunlight;

(3) It is advisable that the change of temperature does not exceed 1°C at each measurement; the difference between room temperature in winter and summer should not exceed 15~30°C. Therefore, conditions should be prepared air-conditioning equipment;

(4) When measuring the calorific value of coal, strong ventilation and heat source radiation should be avoided indoors. In short, in order to reduce the influence of environmental conditions on the calorimetric results,

The calorimetric chamber should be kept as relatively constant as possible at room temperature. The calorific value must not be measured when the room temperature is not constant.