Working method of intelligent pipe brush cleaning system based on electric drive

Abstract

The invention discloses a working method of an intelligent pipe brush cleaning system based on electric driving. The system is composed of a plurality of single-pipe-brush cleaning devices. Each single-sleeve-brush cleaning device comprises a motor driving module, a cleaning module and a control module. When the cleaning system is in a standby state, the motor driving module provides traction force to fix the pipe brush in a brush basket; in the cleaning operation process, the control module controls the motor to drive the pipe brush to reciprocate in a heat exchange pipe; and meanwhile, data in the pipe is collected through a sensor in the cleaning device, the working condition of the cleaning system is monitored in real time, and the working state of the cleaning system can be constantly adjusted through the control module according to changes of data such as temperature and pressure in the heat exchanger. By means of a completely active driving mode, the risk that a pipe brush is clamped in a heat exchange pipe in a traditional pipe brush cleaning system is avoided, cleaning work can be completed under the low-pressure working condition of a water chamber, and normal operation of the whole heating and ventilation system is not affected.

Description

technical field [0001] The invention relates to the field of internal cleaning of heat exchange tubes, in particular to a working method of an electric-driven intelligent tube brush cleaning system. Background technique [0002] Heat exchange tubes are used more and more today, especially in the HVAC field. However, with the advancement of technology, the design of heat exchangers is becoming more and more diversified, the number of heat exchange tubes inside the heat exchanger is also increasing, and the arrangement is becoming more and more complicated. Therefore, it is necessary to efficiently clean the inner walls of a large number of heat exchange tubes. also increasing. [0003] There are three main cleaning methods for the inner wall of heat exchange tubes currently used: (1) manual cleaning, which uses tools such as slender rods, brushes and other tools to clean one by one or use chemicals to clean as a whole. The communication system is closed, and the end cover o...

AI Technical Summary

Problems solved by technology

However, when the four-way reversing valve is working, the water flow that should have flowed out of the water chamber to the terminal equipment is reversed back into the heat exchanger. If the water flow of the terminal system is not replenished, it will stop running, which will reduce the working efficiency of the HVAC system. Moreover, the high-pressure water flow that changes the flow direction repeatedly and instantaneously will cause periodic shock and vibration to the heat exchanger, which will affect the stability of the overall structure of the heat exchanger.

[0006] 2. The tube brush of the existing tube brush cleaning system is completely dependent on the water flow, so there is a hidden danger that the tube brush will be stuck in the blue or inside the heat exchange tube when the water pressure is insufficient; especially the low pressure on the water chamber side is currently used There are more and more heat exchanger design schemes, and the low-pressure water flow will greatly increase the chance of the tube brush getting stuck in the heat exchange tube, and it is even not enough to push the tube brush to complete the normal cleaning work, and once the tube brush gets stuck in the heat exchange tube , you need to stop the heat exchanger, disassemble the water chamber and take out the tube brush manually, which is very inconvenient

[0007] 3. The existing tube brush cleaning system performs preset timing cleaning inside the completely closed heat exchanger. The working status of the tube brush system cannot be fed back to outsiders, and outsiders cannot make any adjustments to the working status of the heat exchanger. The working plan of the tube brush system should be adjusted reasonably. The uncontrollability of the tube brush system is too high, and the working plan of the cleaning system cannot be adjusted reasonably according to the working conditions of the heat exchanger.

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