cryogel.fr - system

THE system
THE "ICE SPRAY" SYSTEM The "Ice Spray" system is an Ice Storage system to be integrated into central production plants for air conditioning of large buildings and district cooling loops. The "Ice Spray" system consists in 3 main elements: the "Ice Containers" : spheres made of plastic filled with water the tanks, which can be metallic or made of concrete the spray system of coolant that conducts heat exchanges. a charge level control unit The "Ice Spray" system is the easiest, most reliable and most economical cold storage system		vertical section of a tank
THE "ICE CONTAINERS": THE BASIC COMPONENTS The "Ice Containers" are spheres made of high density plastic (HDPE) filled with specially treated water mixed with a "freezing catalyst". An "expansion body" placed inside each Ice Container can absorb the expansion of water during freezing. The walls of Ice Containers are covered with growths that increase the heat exchange with the cooled brine (glycol/water) during the spraying phase.		Ice Container
Tanks The tanks are at atmospheric pressure They are made of metal (mounted on site) or concrete, cylindrical or rectangular. They can be installed inside buildings, outside, outdoors or underground. They are insulated: The insulation is made of polyurethane panels (or similar) pasted on the walls of the tank. Sealing is ensured by a liner (PVC reinforced pocket or EPDM). A reserve of coolant is maintained at the bottom of the tank or below it in a holding tank.
cylindrical metal tank of 600 m3	Semi - buried 100 m3 tank of concrete
the spraying network pipes The tanks are fitted in the upper part of a network of PVC pipes which are connected with nozzles. The coolant is drawn at the bottom of the tank through a suction strainer.		spraying network at the top of the tank
sprayers The sprayers can spread the coolant in a consistent manner over the entire section of the tank		spraying
a charge level control uniT
A control unit is placed at the exit of the tank bottom, tapped on the main branch. This device measures the state of charge or discharge of the storage. The information is transmitted to a controller as a signal 0 / 10 V which is then used to drive the installation.