According to the principle of thermal equilibrium and piping thermorytic characteristics, the relationship between the flow velocity in the heating pipe and the greenhouse climate has been set up.

Demolition material are the advantages of pipe cleaner pipe cleaning, water flow rate can be relatively low, may be suspended.

When the fluid is liquid and its speed is more than 0.3l, the micro piping robot can move in pipe and obtains some electric power when it stops.