SU383223A1 - - Google Patents

Description

ELECTRIC THREAD WATER HEATER

12

The invention is intended to heat running water and can be used for domestic and industrial purposes.

An electric direct-flow water heater is known, comprising a housing, a water inlet connection connected to an upper end of a spiral heating element placed in an electrically insulating cylinder, and a water outlet connection.

The purpose of the invention is to automate the process of turning on and off the water heater.

The proposed device differs from the known one in that the heating element is designed as a tension spring, the lower end of which is closed by a plug that serves as a moving element of the contact pair, and the fixed element is fixed on the bottom of the electrically insulating cylinder.

The drawing shows the proposed device.

It has the form of a cylindrical body / inside of which an electrically insulating cup 2 is fastened in any known manner. In cup 2 a tensile spring 5 (electrical heating element) is placed, connected to conduit 4 through insulating sleeve 5. Lower end

the spring 5 is closed by a plug 6, which serves as a moving element of the contact pair. The fixed element 7 of the contact pair is fixed on the bottom of the glass 2. In the bottom of the glass there are several small holes 8 for removing water when not in use. In the bottom of the housing / there is a hole 9 for the exit of heated water.

The heated water under pressure when the valve 10 is opened enters the internal cavity of the spring-electric heater 3 and expands it, contacts 6 and 7 are in contact and the water heater is turned on automatically.

The water is heated in three ethanes: warmed by heat from the inner surface of the heater, the water passes through narrow gaps between the turns of the stretched spring, enters the cavity S1akain and leaves under pressure, receiving heat from the outer surface of the spring. Then water flows down the outer surface of the electrically insulating glass and out of the water heater.

The heater automatically shuts off when the water supply is cut off, as well as when the water pressure in the plumbing network decreases to a certain predetermined limit, at which the spring-electric heater cannot stretch enough to ensure that the contacts touch.

Subject invention

An electric immersion heater, comprising a housing, an ENTIRES branch pipe, connected to an upper end of a spiral heating element placed in an electrically insulating cylinder, and a water outlet pipe, characterized in that

automating the process of switching the water heater on and off, the heating element is designed as a tension spring, the lower end of which is closed by a plug that serves as a moving element of the contact pair, and the fixed element is fixed to the bottom of the electrically insulating cylinder.

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