Electric heating objective table for laboratories

Abstract

The invention discloses an electric heating objective table for laboratories, and belongs to the technical field of heat engineering. The electric heating objective table comprises a water cooling supporting plate, an upper anode clamping piece, a lower anode clamping piece, an upper cathode clamping piece, a lower cathode clamping piece, a hollow water feeding copper column, a hollow water discharge copper column and a second mica sheet, the second mica sheet is arranged on the water cooling supporting plate, the lower anode clamping piece and the lower cathode clamping piece are respectively arranged at two opposite side surfaces of the water cooling supporting plate, the upper anode clamping piece and the upper cathode clamping piece respectively press two ends of a resistance wire screen and are respectively fixed to the lower anode clamping piece and the lower cathode clamping piece, the water cooling supporting plate is provided with a through hole, the through hole is positioned below the resistance wire screen, a water cooling channel is also arranged in the water cooling supporting plate, and the hollow water feeding copper column and the hollow water discharge copper column are respectively fixedly arranged on the water cooling supporting plate and are connected with the water cooling channel. The objective table makes the temperature of a reaction sample be uniform, makes the temperature of the reaction zone of the resistance wire mesh be directly measured, and minimizes an interaction reaction.

Description

technical field [0001] The invention belongs to the thermal technology field of solid fuel pyrolysis, gasification and combustion, and more specifically relates to a small water-cooled electric heating stage for laboratories. Background technique [0002] The utilization of solid fuels such as coal, biomass, and solid waste usually includes pyrolysis, gasification, and combustion. These solid fuel samples will produce some volatile products in the process of thermal utilization. In addition to their own homogeneous reaction, these volatile products may also interact with the reacting sample or the generated solid and liquid residues. This makes the study of the initial process of heat utilization reactions such as solid fuel pyrolysis, gasification and combustion extremely complicated. [0003] The vast majority of research on the efficient and pollution-free utilization of solid fuels at home and abroad uses benches such as thermobalances, fixed beds, fluidized beds, react...

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Problems solved by technology

[0006] Aiming at the disadvantages of large interaction between the reaction sample and the generated product in the existing experimental bench, and the inability to directly collect the actual temperature of the solid sample, the present invention provides an electric heating stage for laboratory use, which can directly collect the reaction solid sample The actual temperature, and the water cooling channel arrangement of the stage can effectively increase the heat exchange area, make the temperature of the reaction sample more uniform, and can run for a longer time at high temperature, in addition, it is also convenient to directly measure the reaction area of ​​the resistance wire mesh temperature

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