Composition and material of constant temperature air drying oven
Structure of a blast constant temperature drying oven
The outer layer of the drying oven body is a spray-painted iron sheet; The middle layer is glass wool or asbestos for heat insulation; The third layer is iron sheet; The fourth layer is made of iron sheet air convection wall, so that the cold and hot air can convection, the temperature in the oven is uniform. The wall outside the working room is coated with silver powder paint which is resistant to high temperature and corrosion. There are vents on the top of the oven for hot air and steam to escape, and there is a thermometer jack in the middle of the vents. A thermometer is inserted to indicate the temperature in the oven. The door of the oven is double layer, the inner L -] is generally high temperature resistant and not easily broken tempered glass, the outer door is filled with metal insulation. There are inlet and outlet holes at the bottom of the oven. There is a sample partition in the working room, on which the sample is placed for drying. If the test product is large, the partition can be extracted for adjustment.
The electric heating part is mostly exposed to the electric heating wire. Usually, the electric heating wire is divided into two groups, one of which is a large group of auxiliary electric heating wire, directly connected with the power supply, not controlled by the temperature controller; The other group is thermostatic electric heating wire, which is connected with the temperature controller to accept the control.
An automatic temperature control system, usually adopts a differential bar type or contact mercury thermometer type temperature controller, or uses a thermistor as a sensing element of temperature controller.
drying oven KH |
air drying oven DHG |
drying oven:http://en.kentonchina.com/list/drying-oven.html
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