Lateral travel and steering system of radiator fin cleaning machine for indirect air cooling tower in power plant

Abstract

The invention discloses a transverse walking and steering system of a power plant indirect air cooling tower radiator fin washing machine. The transverse walking and steering system comprises a rack, a self steering mechanism and a transverse walking mechanism, the self steering mechanism is arranged at the front end of the rack, the transverse walking mechanism is arranged at the tail end of the rack, the self steering mechanism comprises a walking support and a walking guiding wheel matched with a guide rail, the top of the walking support can be rotatably supported on the rack, one side of the walking support is connected to the rack through a movable knuckle bearing component, the walking guiding wheel is installed on the walking support, the transverse walking mechanism comprises a driving piece, a driving gear and a walking gear matched with the guide rail, an output shaft of the driving piece is sleeved with the driving gear, and the walking gear is meshed with the driving gear. By means of the transverse walking and steering system, abrasions, undercuts, blocking and the like caused after long-term work can be avoided, and the dual-functions of smooth driving and self steering can be achieved.

Description

technical field [0001] The invention relates to a lateral running and steering system of a radiator fin cleaning machine for an indirect air cooling tower of a power plant. Background technique [0002] At present, the increasing scarcity of water resources has promoted the rapid development of air cooling technology in the power generation industry. In my country's "coal-rich and water-shortage" areas, the main cooling methods of thermal power plants are direct air cooling and indirect air cooling. Among them, the indirect air cooling is mainly composed of a condenser, an air cooler and a radiator, and the radiator is made of steel or aluminum. The working principle of the indirect air cooling system: the circulating cooling water enters the water side of the surface condenser, exchanges heat through the metal surface, cools the exhaust steam of the steam turbine on the condenser side, and the heated cooling water is pumped by the circulating cooling water to the indirect ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the heat dissipation fins of the cooling tower are all exposed to the outside world, providing a bed for various pollutants in the air, and these attachments always affect the effect of cold and heat exchange

The accumulation of more and more serious attachments will cause abnormal operation of the steam turbine, reduce the output efficiency of the steam turbine, and lead to an increase in energy consumption for power generation, thereby increasing production costs

The operating practice of the unit has proved that when the convective airflow is reduced by 20%, the back pressure of the turbine increases by 33%, which affects the safe operation of the equipment and the power generation efficiency

[0004] In the horizontal drive and steering design of the existing cleaning machines in the market, the horizontal drive adopts the mode of the reducer directly driving the steel round wheel, and there is a safety hazard that the round wheel will jump off the track when it is impacted when it is quickly started.

In terms of walking and turning, there is a lack of research on the layout characteristics of the guide rails. Since the design of the horizontal travel rails provided by the power plant adopts the model of straight rails fitting curved rails, that is, no matter how large the diameter of the air cooling tower, the actual production of circular guide rails is to use Each section of 6-meter-long straight angle steel curve fits the circumference of the air-cooling tower. Therefore, when the washing machine travels horizontally, it needs to change direction every 6 meters. However, the existing design uses 2 sets of fixed, The steel round wheels arranged in a straight line with a distance of nearly 4 meters walk on the guide rail. Due to the undercut of the round wheel and the guide rail when turning and changing direction, the guide rail and the round wheel have the defect of serious wear to each other.

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