Laboratory automatic calorimeter

The instrument is a versatile single-chip microcomputer development calorimetry instruments, mainly for solid and liquid fuel, such as coal, oil, equipment, wood, explosives and other substances Determination of calorific value. The instrument is the latest development of a new energy efficient analytical instruments. Calculation program well-prepared, the measurement accuracy greatly improved. With LCD display, full Chinese menu display, easy to operate, can achieve full process control measurement, automatic water, drainage, fire, stirring, computing, printing is calorific value measuring substances, testing at a glance, for the production and study of combustible materials businesses and universities, scientific research and military authorities developed a very good device. First, the technical features of the instrument and compared to similar machines, the machine has the following characteristics: 1, the machine uses high-grade single-chip configuration, simple structure, reliable performance, anti-interference ability. 2, automatic water, drainage, mixing, ignition, mining temperature, the calculated correction, print, experiment to achieve a fully automated, avoiding human error and greatly improved accuracy and precision. 3, experimental automatic cooling correction, ambient temperature requirements relaxed, improve test accurately, while also ensuring the stability of the instrument for a long time to run. 4, after the experiment can be converted to print high calorific value, more in line with the general routine experimentation. 5, full Chinese display, easy to operate. 6, the entire testing process for about 15 minutes Second, the principle of the instrument for measuring the calorific material is burnt in a hyperbaric oxygen can also be measured calorific substance capable of burning in a vacuum. Measuring the amount of heat the material in the high-pressure oxygen works as follows: first the standard weight of the sample is placed in a heat-resistant, corrosion-resistant stainless steel crucible, the crucible was placed in a stainless steel cylinder bomb, bomb tighten the cap, and then the oxygen bomb filled with oxygen, pressure of about 3.0Mpa, place it in a circular inner tube in accordance with the temperature rise and the amount of thermal systems (including water cylinder, oxygen bomb) heat capacity, it can calculate the calorific value of the sample, the aforementioned water sleeve water substantially constant, the heat exchange of the water during the experiment between the tubular sleeve and the external water can be corrected by appropriate calculations. Third, the technical correction No. Name Specifications Unit 1 heat capacity of about 10500 J / K 2 oxygen capacity of 300 Ml bomb oxygenation pressure 2.8-3.0 Mpa pressure resistance pressure 20 Mpa Weight 2.5 Kg Dimensions Mm 3 coats of water within the cylinder capacity of 51 L 4 cylinder water capacity of about 2.1 L 5 show the range of 0.000-40.000 ℃ response time