What is the improvement of the new horizontal tube expander for heat exchange treatment?

In order to fully recover the residual heat and steam in the secondary pressure steam after power generation, the thermal power industry is vigorously promoting the cooling triangle heat exchange equipment. Aluminum tubes and fins need to be expanded in the production of cooling triangle tube sheet heat exchanger core group. At present, there are four production problems: low efficiency of manual positioning, insufficient equipment travel, unable to form at one time, and unable to detect tube removal.

In order to solve these problems, it is difficult to meet the requirements by making limited transformation on the old tube expander, so it is necessary to develop new tube expanding equipment. Through the design of servo motor multi axis synchronous control system of horizontal tube expander, a numerical control frame is developed. By setting the servo amplifier and cooperating with program control, the two axis and three axis servo motors can run synchronously, and the new tube expanding equipment can move stably and rapidly under heavy load. The multi pulse rotary encoder of servo motor makes the frame move smoothly and rapidly It can quickly and automatically locate. This solves all kinds of problems in manual positioning and improves the positioning efficiency.

The horizontal tube expanding machine adopts a newly designed tube dropping detection mechanism. The micro switch is triggered by the linkage mechanism, so that the new tube expanding equipment can sensitively detect the failure of aluminum tube claw, and send an alarm signal to PLC at the moment of claw removal, so that it can quickly take effective response. The new system effectively solves the production problem of aluminum tube claw removal which is difficult to detect.

The horizontal tube expander also adds the detection technology of real-time tracking the moving distance of the expanding platform. By installing a long-distance displacement sensor and reducing the noise signal, the parameter of the expanding distance can be monitored in real time. This new type of reciprocating expansion device provides a powerful support for the production of reciprocating expansion technology.

Horizontal tube expander is a new type of equipment developed for the purpose of improving the production efficiency of heat exchanger core group. Through the research on the technical problems such as insufficient stroke, unable to detect tube removal and difficult positioning in the production of large-scale heat exchanger core group, combined with the actual situation of the production site and improvement suggestions, a new type of equipment was developed. It improves the production efficiency and reduces the defective rate of production, which provides a strong support for energy conservation and emission reduction of China's thermal power industry.