DEVICE FOR FORMATION OF ICE-HOLE ON ICE SURFACE OF WATER BASIN Russian patent published in 2019 - IPC E02B15/02 

FIELD: ecology; technological processes.

SUBSTANCE: invention relates to cleaning of ice part of open water bodies and waterways from ice and can be used in environmental protection activities for fish – formation of odorants, melting frozen on water vessels and structures, as well as to obtain non-freezing holes in rural areas, including for creation of pools for ice swimming, etc. Device for formation of ice-water on ice surface of water basin comprises means for retaining device on surface of water basin, housing of device with channel of water supply from basin depth, channel of water flow removal made in upper part of housing, and drive connected by means of shaft with screw blade. Helical blade of device is made in upper part of channel of water supply from depth of basin above truncated cone-shaped funnel at level of middle part of channel of water flow outlet. Drive of device is mounted above water surface of pool by means of device for holding device on surface of water pool and is equipped with located above blade source of heating medium, connected by electric supply circuit with protection against blade freezing-out device, including emergency and working electrical circuits, which contacts at increased load of blade rotation during freezing on emergency schedule – power supply source – motor armature – excitation winding are connected to medium heating source, at elimination of load from freezing of blade contacts of protective device according to working scheme – power supply source – motor armature – capacitor – rectifier and transistor are closed.

EFFECT: invention ensures reduction of power consumption during operation of the device and possibility of uninterrupted operation of the device, including in case of thawing of the frozen blade, and also provides for cleaning of water surface from ice at lower temperatures.

3 cl, 2 dwg