What do you mean by water supply and drainage?

Water supply means water supply, including domestic water and water for fire fighting, heating and ventilation, construction, etc., which is connected to the construction site from the municipal water supply port.

Drainage is to discharge sewage and wastewater, including sewage and wastewater generated from construction and life, to municipal sewage outlets.

The water supply of condensing power plant is mainly composed of condensed water (water condensed after steam passes through the condenser in the steam turbine), supplementary water (raw water is purified by various methods to supplement the water lost in the steam-water circulation system of thermal power plant) and various drainage (steam condensed water in steam pipelines and steam equipment).

The water supply composition of thermal power plant also includes hot backwater (steam condensate recovered after the power plant provides heat to heat users).

Refrigerated water supply

One: The water source of cold storage should be tap water, groundwater and surface water in the nearest city.

The water quality of domestic water for cold storage, raw water for ice making and water added during the freezing of aquatic products should comply with the current national standard "Hygienic Standard for Drinking Water" GB 5749.

Two, the quality of cooling water and frost washing water of production equipment should meet the water quality and hygiene requirements of the cooled equipment.

Three: the cold storage water supply should ensure sufficient water quantity and water pressure, and should meet the following requirements: the water consumption of cooling water and frost washing water for cold storage production equipment should be determined according to the water equipment.