^{_{Food industry achievement:}}ECH 60 water/water exchanger, for St Michel

Our heat exchangers at the service of… all food lovers!

St Michel has long been one of the favorite brands of the French.

And this is certainly no coincidence: this independent French family business has been constantly innovating since its creation in 1905 and developing its business with ambition and enthusiasm.

The Guingamp site specializes in the production of french crepes… and that is where our EURODIFROID coolers come into play to guarantee optimal manufacturing quality.

Because temperature regulation of ingredients is crucial for good preparation: oil, butter, dough, chocolates… must be kept and circulated at very precise and specific temperatures depending on the product or the stage of the process.

The technical configuration

To achieve this good management, our exchangers use the primary water circuits available on the site (1 hot water circuit and 1 cold water circuit), to then cool or heat one or another tank, or one or another secondary network.

A real challenge in terms of thermal and hydraulic design, but also in terms of interfacing with the customer’s proprietary regulation.

Obviously, the agri-food context adds an additional level of requirement in order to guarantee impeccable hygiene throughout the chain (stainless steel materials, ease of maintenance, etc.) and in the vicinity of the cold unit.

Various EURODIFROID chillers are thus in operation in this factory, according to different capacities and configurations: ECH50, ECH150, ECH200, ECH2x30, ECH3+1…

For example: ECH 60 water/water heat exchanger

Here for example: an ECH 60, currently being assembled, specially designed for the chocolate handling process (conveying circuit to the workstation and temperature maintenance circuit for the tanks):

1 pipe circuit, for “hot” exchange
1 tank circuit, for “hot” or “cold” exchange
1 common hot circuit
All controlled by a control module supplied and pre-programmed by the customer according to the needs of their overall system.

Probes, valves, stainless steel treatment, pressure gauges, connections… everything has been meticulously designed and assembled for one single objective: to enjoy St Michel delicacies for as long as possible!

+ about this type of PRODUCT

Detailed specifications of this ECH 60

PIPING CIRCUIT

Heat exchange capacity: 1.5 kW for a primary source temperature of 80°C and a process outlet temperature of 25°C at a flow rate of 1 m³/h
Ambient temperature range: 10°C to 45°C
Control temperature range: 10°C to 50°C
Pressure: 1.4 bar to 2.9 bar
Flow rate: 11 l/min to 40 l/min

Design

1 “Cold” heat exchanger to be connected to your 15°C cold water supply, brazed plate type
1 proportional 2-way valve mounted on the primary cold water supply
1 closed, pressurized stainless steel tank with sacrificial anode, maximum capacity 10 liters
1 expansion vessel
1 adjustable automatic water filling valve
1 pressure relief valve mounted on the tank, pre-set to 3 bar
1 circulation pump with stainless steel body
1 manual 2-way control valve to adjust the pressure/flow rate at the cooler outlet
1 pressure gauge mounted on the tank
1 pressure gauge mounted on the pump outlet
1 pressure gauge mounted on the cooler outlet
1 supply connection via F1″ stainless steel fittings
1 return connection via F1″ stainless steel fittings
Internal piping via brass fittings and flexible plastic hoses

TANK CIRCUIT

Cooling capacity: 6 kW for a primary source temperature of 15°C and a process outlet temperature of 18°C at a flow rate of 3 m³/h
Heating capacity: 6 kW for a primary source temperature of 80°C and a process outlet temperature of 35°C at a flow rate of 3 m³/h
Ambient temperature range: 10°C to 45°C
Control temperature range: 10°C to 50°C
Flow rate: 18 L/min to 70 L/min
Pressure: 1.3 bar to 3.2 bar

Design

1 “Cold” heat exchanger to connect to your 15°C cold water supply, brazed plate type
1 proportional 2-way valve mounted on the primary cold water supply inlet
1 “Hot” heat exchanger to connect to your 80°C water supply, brazed plate type
1 proportional 2-way valve mounted on the primary 60°C glycol supply inlet
1 closed, pressurized stainless steel tank with sacrificial anode, maximum capacity 10 liters
1 expansion vessel
1 adjustable automatic water filling valve
1 pressure relief valve mounted on the tank, pre-set to 3 bar
1 circulation pump with stainless steel body
1 manual 2-way control valve to adjust the pressure/flow rate at the cooler outlet
1 pressure gauge mounted on the tank
1 pressure gauge mounted on the pump outlet
1 pressure gauge mounted on the cooler outlet
1 supply connection via F1″ stainless steel fittings
1 return connection via stainless steel fittings F1″
Internal piping via brass fittings and flexible plastic hoses

COMMON HEATING PRIMARY CIRCUIT

1 distribution manifold to the primary branches of both circuits
1 return manifold from the primary branches of both circuits
1 primary inlet connection (F1)
1 primary return connection (F1)
2 isolation valves at the primary network inlet

COMMON ELECTRICAL AND MECHANICAL INTEGRATION

1 stainless steel electrical control cabinet (wiring without a bonded base)
1 IP65 front-mounted disconnect switch
1 customer-supplied module, integrated and wired by us, for information exchange and unit control
1 unpainted 304 stainless steel sheet metal enclosed chassis, conforming to RFI 30/45 raised template
4 hygienic feet (without openings)