Patent ID: 11959268
Assignee: ENDUCE AB
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A shower drain system for recovering thermal energy from a flow of shower greywater comprising:
a drain cup for receiving shower greywater,
a heat exchanger arranged downstream of the drain cup, the heat exchanger being configured to heat a flow of incoming cold water with the shower greywater,
the drain cup comprising a drain cup inlet for receiving the shower greywater, and a drain cup outlet for discharging shower greywater to the heat exchanger,
wherein the drain cup comprises a nozzle arranged and configured to supply hot water into the drain cup, the nozzle being arranged downstream of the drain cup inlet and upstream of the drain cup outlet, and being arranged and configured to face the drain cup outlet.