Heating apparatus and method for industrial use

Abstract

An industrial apparatus comprises an operating fluid circulating in a circuit 2 which comprises a means 20 for heating the operating fluid and being deprived of an evaporator, and a circulating line 31 in which a heat transfer fluid circulates. The circulating line 31 is a closed loop. The flow rate of the heat transfer fluid in the circulating line is between 10 and 500 m3 / h. A first heat exchanger places the circuit and the circulating line in thermal communication. An industrial heater 92 comprises a second heat exchanger 902 in which the circulating line passes. The heating means consists of a piston pump 21 heating by friction. The heat transfer fluid is other than water. A motorised valve 93 controls flow rate of the operating fluid. The heater may create steam to dry food or non-foods, may be a distiller, pasteuriser or reactor carrying out a chemical reaction. The piston pump may comprise a magnetic asynchronous electric motor and a temperature sensor 321 regulates operation thereof. A control unit may regulate temperatures and pressure to keep the operating fluid in liquid phase. The apparatus may comprise a filter 61 and sight glass 62 downstream of the first exchanger.

Claims

1. An industrial apparatus comprising:- a circuit (2) in which a operating fluid circulates; said circuit (2) comprising a means (20) for heating the operating fluid and being deprived of evaporator,- a circulating line (31) in which a heat transfer fluid circulates; the circulating line (31) being closed on itself; the flow rate of the heat transfer fluid in said circulating line (31) being comprised between 10 and 500 m3 / h,- a first heat exchanger (901); the first heat exchanger (901) placing said circuit (2) and said circulating line (31) in thermal communication,- an industrial heater (92) comprising a second heat exchanger (902) in which the circulating line (31) passes,characterised in that the heating means (20) consists of a piston pump (21).

2. The apparatus according to claim 1, characterised in that said heat transfer fluid is other than water.

3. The apparatus according to claim 1 or 2, characterised in that said first heat exchanger (901) is a tube bundle exchanger.

4. The apparatus according to any one of the preceding claims, characterised in that it comprises a capacity control means (93) for controlling the flow rate of the operating fluid in the circuit (2); said capacity control means (93) comprising a motorised valve (930) situated along the circuit (2).

5. The apparatus according to any one of the preceding claims, characterised in that it comprises a steam generator; or a dryer; that in turn comprises said heater (92), which receives heat from the circulating line (31) and uses it for a predetermined process.

6. The apparatus according to any one of claims 1 to 4, characterised in that it comprises a distiller; or an emulsifier; or a pasteuriser that in turn comprises said heater (92), which receives heat from the circulating line(31) and uses it for a predetermined process.

7. The apparatus according to any one of claims 1 to 4, characterised in that it comprises a reactor for carrying out a chemical reaction; said reactor in turn comprises said heater (92), which receives heat from the circulating line (31) and uses it for a predetermined process.

8. The apparatus according to any one of the preceding claims, characterised in that it comprises an electric motor (22) for driving the piston pump (21); said electric motor (22) comprising / being a magnetic asynchronous electric motor (22).

9. The apparatus according to any one of the preceding claims, characterised in that the operating fluid is R1233ZD(E).

10. The apparatus according any one of the preceding claims, characterised in that it comprised a control unit for regulating the temperatures and pressure required to keep in a liquid phase the operating fluid circulating in circuit (2).

11. A heating method involving the apparatus according to any one of the claims 1 to 10, comprising the following steps:- circulating a operating fluid in a circuit (2);- heating the operating fluid that circulates in said circuit (2);- carrying out a transmission of heat from the operating fluid to a heat transfer fluid that recirculates in a first circulating line (31),- providing the heat coming from the heat transfer fluid in a heater (92) situated along the circulating line (31).

12. The method according to claim 11, characterised in that the operating fluid has a pressure between 6 and 8 bar.12

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