RU2630818C1 - Thermosyphon heater with electrode electrolyte heater and integrated pump - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: provided heater contains a sealed body 1 equipped with a delivery and a suction nozzles 9, 10 with return valves 8, electrodes 4 and terminals for supplying electric power. The thermosyphon heater is equipped with a piston 2 which airtightly splits the body on the lower part 3 with electrolyte solution 5 and the upper part 6 with fluid 7, and parallel horizontal electrodes 4 submerged in the electrolyte solution 5 and a heat exchanger 11 made in the form of a water jacket embracing the lower part of the body 1.

EFFECT: expansion of the operating capabilities.

1 dwg

Description

The present invention, the solution relates to electrothermal devices of the electrode type and is intended for heating and pumping fluids.

The device can be used for preheating internal combustion engines in the cold period of time and as an electric boiler in heating systems with the function of pumping the heated medium.

Known electric heating devices that are used to heat internal combustion engines, they belong to two groups: the first with a solid heating element (nichrome wire) and the second with liquid, in which the electrically conductive liquid is heated by alternating electric current. Heat is transported from the heater to the engine due to natural circulation in the cooling system circuit [1-2]. The disadvantage of such devices is the inability to use non-conductive fluids.

A device [3] - a liquid electric heater with forced circulation, consisting of a housing, which is an external electrode, an internal electrode and terminals for supplying electricity.

The disadvantage of the prototype is that the pumped liquid must be electrically conductive.

An object of the invention is to expand the functionality of a device for heating internal combustion engines with forced circulation of any, including non-conductive coolant, as well as an electric heater for heating systems with the simultaneous function of pumping a heated medium.

The technical problem is solved in that the known thermosiphon heater with electrode heating of the electrolyte, containing a sealed housing, equipped with discharge and suction nozzles with check valves, the electrodes and terminals for supplying electricity, according to the invention, is equipped with a piston, hermetically separating the housing into the lower part with an electrolyte solution and the upper part with a fluid, the electrodes are located one above the other parallel to each other, flooded in an electrolyte solution, and a heat exchanger, filled in the form of a water jacket covering the lower part of the body.

The proposed device is schematically represented in the drawing.

The drawing shows a thermosiphon heater with electrode heating of the electrolyte and an integrated pump.

Thermosiphon heater with electrode heating of the electrolyte and an integrated pump contains a cylindrical housing 1, where the piston 2 is located, which divides it into two parts. The lower part 3 of the housing 1 under the piston contains electrodes 4 located one above the other, flooded with an electrolyte solution 5. The upper part 6 above the piston is a chamber for pumping fluid 7 and is equipped with check valves 8 located in the discharge 9 and suction 10 nozzles. On the outer surface of the lower part of the housing 1 is a heat exchanger 11, made in the form of a water jacket, covering the lower part of the housing 1.

The operation of the device is as follows.

During the first period of operation of the device, electrode heating occurs and the electrolyte boils in the gap between the electrodes 4 due to the passage of alternating current through them. A part of the electrolyte turns into steam, the pressure under the piston 2 rises, the piston 2 rises and displaces the fluid 7 from the chamber 6. Due to the evaporation of the electrolyte 5, the electrical connection between the electrodes 4 is opened and the heating of the electrolyte 5 is temporarily stopped.

During the second period of operation, condensation of the electrolyte vapor 5 occurs on the cold inner wall of the lower part of the housing 1. The wall is cooled by a fluid 7, pumped in a heat exchanger 11, which is heated. The pressure under the piston 2 drops, the piston moves downward and pumps a portion of the fluid heated in the heat exchanger into the chamber 6. The condensate formed drains and fills the gap between the electrodes 4. The heating and boiling process resumes.

The considered periods of operation provide reciprocating movement of the piston 2, pumping of the fluid 7 and its heating in the heat exchanger 11.

The use of parallel electrodes located one above the other, one of which is periodically not immersed in the electrolyte solution, as a result of the evaporation-condensation cycle provides heating and pumping of the fluid.

Thermosiphon heater with electrode heating of the electrolyte and an integrated pump with heating functions and forced circulation of any, including non-conductive coolant will reduce the cost of operation, wear of parts of various devices, increase the reliability of their use.

LITERATURE

1. G.V. Kramarenko et al. "Garage storage of cars at low temperatures." M., Transport, 1984, pp. 73-79.

2. Bagaev A.A., Bagaev A.I., Kulikova L.V. Electrotechnology. Barnaul: printing house "ABC". 2006, p. 319.

3. Furman M.G. Patent RU 2167331, 2001.

Claims (1)

A thermosiphon heater with electrode heating of the electrolyte and an integrated pump, comprising a sealed housing with discharge and suction nozzles with check valves, electrodes and terminals for supplying electricity, characterized in that it is equipped with a piston hermetically separating the housing into the lower part with the electrolyte solution and the upper part with fluid medium, the electrodes are located one above the other parallel to each other, flooded in an electrolyte solution, and a heat exchanger made in the form of a water jacket covers lower part of the body.

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