1, the heat meter Description: 

 (1) Overview 

 Calorimeter is a combustion bomb, the inner core, outer tube, stirrer, temperature sensor and sample ignition device, temperature measurement and control systems, and water composition. 

 (2) oxygen bomb 

 By the heat-resistant, corrosion-resistant chromium or bromine bromine made of chrome diamond consistency, need to have three main properties: 

 a) emerged from the combustion process of high temperature and corrosive products produced thermal effects; 

 b) can withstand the pressure and oxygenation produced during combustion of the instantaneous pressure; 

 c) during the test can remain completely airtight. 

 (3) within the tube 

 With copper, brass or stainless steel is made, the cross section can be oval, diamond or other appropriate shape. Barrel filled with water 2000mL-3000mL, to be submerged bomb (except out of valves and electrodes) shall prevail. 

 Outside of the tube should be highly polished to reduce radiation between the outer tube. 

 (4) the outer cylinder 

 Double-walled container made of metal, and cover. Outer wall is circular shape of the wall by the shape of the tube may be; outer tube should be completely surrounded by the inner cylinder, inside and outside the tube should be 10mm-12mm spacing, the bottom insulating outer tube frame, in order to be placed inside the tube. 

 (5) stirrer 

 Propeller or other forms. Speed ??(400-600) r / min is appropriate and should remain constant. 

 (6) the amount of heat thermometer 

 Inner cylinder for the amount of heat thermometer temperature measurement resolution of at least 0.001K to 0.002K or better able to determine the resolution of the temperature rise of 2K to 3K; 

 2 accessories 

 (1) burning pan 

 Platinum products, the best generally available bromine chrome just products. Specifications can be high 17mm-18mm, bottom diameter 19mm-20mm, diameter of the upper diameter of 25mm-26mm, thickness 0.5mm. Other alloy steel pan or quartz combustion system can also be used. 

 (2) pressure gauges and oxygen catheter 

 Header pressure gauge consists of two components: an indication of the pressure of the oxygen bottle, an indication of oxygenation of oxygen pressure inside the bomb. Table heads should valve and insurance valve. 

 Through the inner diameter of 1mm-2mm gauge seamless tubes connected with the oxygen bomb, or through the oxygenation device is connected, to make into oxygen. 

 (3) Ignition 

 Ignition power with 12V-24V, 220V AC power can be supplied by the transformer. Circuit voltage should be a regulatory rheostat in series and a direct ignition light conditions or current dollars. 

 Ignition test voltage should be determined in advance. Method: take a good ignition wire, the air power test. In the case of fuse ignition, adjust voltage to the ignition wire in the 1s-2s reach bright red; in the case of cotton the ignition, adjust voltage to the ignition wire in the 4s-5s to dark red inside. Voltage and time is confirmed, should accurately measure voltage, current and power-on time, in order to calculate the heat generated by electricity. 

 Such as the use of cotton ignited the fire in the shelter more than cover the connection between the two electrodes to live a bromine directly about 0.3mm chrome wire, wire the middle of the pre-firing spiral a few laps to heat set. 

 (4) press cake machine 

 Screw, lever or other forms of press cake machine. 10mm diameter, the briquettes can be suppressed or benzoic acid cake. Bar application of mold and made of hard, smooth surface, easy to clean. 

 (5) can be indicative of a stopwatch or other timer 10s 

 3, the balance 

 (1) analytical balance: a sense of the amount of 0.1mg. 

 (2) Industrial Balance: load 4kg-5kg, a sense of the amount of 1g.