DE149057T1 - DEVICE FOR CONVERTING ELECTRICAL ENERGY INTO THERMAL ENERGY. - Google Patents

Abstract

1. Apparatus used to convert electric power into thermic power, characterized by the fact it includes an isolated dewar (1) filled up with a diathermic heat-conveying fluid (2) in which a first electric engine (3) is immersed as well as a first hydraulic pump (4) which works with the aforesaid engine and the inflow and outflow pipes of which are also immersed in the heat-conveying fluid, the outflow pipe of the aforesaid pump being equipped with means of reducing the outflow, and by the fact that these means of reducing the outflow consist of a second hydraulic pump (24) the inflow pipe (22) of which is connected to the aforesaid outflow pipe (6) of the first pump (4), the second pump (24) being associated with a second electric engine (23), and this second pump and this second engine being immersed in the heat-conveying fluid and characterized by smaller dimensions as compared to the first pump and the first engine respectively.

Claims (10)

0U9057 EP 84114054.4 (0 149 057)
dated November 21, 1984
PORCELLANA, MICHEL Claims . Device for converting electrical energy into thermal energy, characterized by an insulated container (1, 31) filled with a < diathermic heat transfer fluid (2, 32) into which a / < Electric motor (3, 23, 33) and a hydraulic pump (4, 24, 34) are submerged, the hydraulic The pump is driven by the motor and its suction and discharge lines are also in the heat-carrying system Fluid are immersed and the drain line of the pump is provided with means for reducing the outlet flow is. 2. Device according to claim 1, characterized in that the means for reducing the outlet flow from a Control valve (9) are formed. 3. Device according to claim 2, characterized in that the regulating valve (9) is actuated by a servo control motor (10) which is controlled by a measuring instrument for measuring the temperature T _{1 of} the heat-carrying fluid. 56-37.870DeEPZlCAl, 4. Apparatus according to claim 1, characterized in that the means for reducing the outlet flow from a second hydraulic pump (23), whose suction line (22) to the outlet line (6) of the first Pump (4) is connected, the second pump (24) being coupled to a second electric motor (23) and the second pump and the second motor have characteristic values relative to those the first pump or the first motor are undersized. 5. Apparatus according to claim 4, characterized in that the second electric motor (23) by the outlet flow of the second pump (24) is driven in such a way that it converts some of the mechanical energy into reusable converts electrical energy back. 6. Device according to one of claims 1 to 3, characterized by one between the outlet line (36) of the hydraulic pump (34) and the means (41, 41b) for reduction of the outlet flow arranged hydraulic accumulator (37) and a hydraulic accumulator which can be actuated in two directions Piston (38). 7. Apparatus according to claim 6, characterized in that the hydraulic accumulator (37) has a pressure regulator (41) and is connected to a three-way valve (43) with two distribution paths, each Way with the interposition of a valve (46a, 46b) in the cylinder (44) opens, in which the piston (38) reciprocated, this cylinder at each O H 9.0 5 its ends have an outlet line which is connected to means for reducing the outlet flow (41a, 41b), are connected with the interposition of a valve (43a, 48b). 8. Apparatus according to any one of claims 1 to 7, characterized in that the electric motor (3, 23, 33) which actuates the hydraulic pump (4, 24, 34) is equipped with a compensation capacitor. 9. Device according to one of claims 1 to 8 for space heating, characterized by a circulation pump, whose suction line in the heat-carrying fluid of the container and its outlet line to the supply line system of an outer circuit are connected, the outer circuit in a return line system ends, the end of which is immersed in the heat-carrying fluid of the container and in that the circulation pump and its electric drive motor also in the heat-carrying fluid of the container are immersed. 10. Device according to one of claims 1 to 8 for space heating or hot water preparation,
characterized by a heat exchanger immersed in the heat-carrying fluid of the container, which is connected to an external heating circuit or water supply circuit, and in that the circulation pump connected to this circuit and its electric drive motor are immersed in the heat-carrying fluid of the container.