| 摘要 |
FIELD: machine building. ^ SUBSTANCE: unit for gas-pulse cleaning of heating surfaces includes distributing header, pulse chambers connected to distributing header by means of pipelines with shutoff-control valves, mixers with gas and air supply branch pipes having shutoff-control valves, which are connected by means of additional pipelines having shutoff-control valves with branch pipes, and air supply branch pipes are connected to distributing header, automatic control device with inspection sensors of explosion-generated pulses and temperature, which are arranged on pipelines before mixers. Temperature sensors are installed after heating surfaces; at that, automatic control device is connected via electric circuits to inspection sensors of explosion-generated pulses and temperature to periodically acting igniters and shutoff-control valves. Unit is also equipped with process unit with independent gas and air supply sources with gas and air pressure control and shutoff-control valves, gas sensors of continuous control of combustible gases concentrations, which are arranged on mixers which are respectively connected via pipelines to independent gas and air supply sources and electric circuits with automatic control device, fixed hinged supports installed on pulse chambers providing the changes of directions of pulse chambers in horizontal or vertical directions in manual or automatic mode; at that, pulse chambers are connected to distributing header by means of flexible hoses. ^ EFFECT: invention allows maximum use of power of blast waves generated with pulse chambers to cleaned heating surfaces owing to changing the direction of attack angles of blast waves, enlarging the cleaning range of heating surfaces, decreasing the number of pulse chambers for cleaning heating surfaces, which will considerably reduce costs for auxiliaries. ^ 1 dwg |
