Rapid water heater

Abstract

A quick water heater belongs to heating equipment and solves the problems of prior art, such as non-uniform heating of energy-converting sheets, formation of stagnant water zones in the water tank, and scale formation. The quick water heater comprises a shell inside which a water tank, a heating coil and a power frequency transformer are arranged, an eddy current heating device arranged inside the water tank, and a water inlet pipe and a water outlet pipe both arranged on the water tank. The heating coil is eclectically connected with the power frequency transformer. The invention is characterized in that the water tank, the eddy current heating device and the heating coil are ring-shaped; and the heating coil is positioned outside the water tank and opposite to the eddy current heating device. The inventive technical proposal ensures the uniform distribution of heat produced by the eddy current heating device and the uniform heating of water flowing through the heating device, thereby increasing the heat efficiency of the water heater. Additionally, the ring-shaped water tank can prevent the formation of stagnant water zones and water scale, so that the service performance of the water heater is improved and the service life of the water heater is prolonged.

Description

technical field [0001] The invention belongs to a heating device, in particular to an instant water heater adopting electromagnetic induction heating technology. Background technique [0002] The utility model patent with the patent number ZL03250187.0 discloses a technical solution of "electromagnetic fast water heater". Figure 6 and Figure 7 Shown the structure of this prior art instant water heater, its water tank 2 (A) is two parallel rectangular tanks, communicates with each other and forms with water inlet pipe 4 (A) and water outlet pipe 5 (A). Transducer sheet 3 (A) is all housed in each rectangular tank. A circular heating coil 6 (A) is arranged between the two rectangular water tanks. The heating coil 6 (A) is driven by the power frequency converter control circuit 7 (A). When a high-frequency alternating current passes through the heating coil 6 (A) , the transducer 3(A) in the rectangular water tank will generate eddy current and generate heat due to electrom...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects of the prior art that the energy-transfer sheet is extremely unevenly heated, and the dead water area is easily formed in the water tank to form fouling, and to provide an eddy current heating device (i.e. Transducer sheet) is an electromagnetic induction heating instant water heater with uniform heating everywhere and no dead water area in the water tank, and on this basis, it further overcomes the insufficient contact between the transducer sheet of the water heater in the prior art and the water flow flowing through the water tank. There are no cooling systems on the device, and the connection between the two water tanks is not reasonable, etc.

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