Water heater with cold and hot water mixing-prevention device

Abstract

The invention discloses a water heater with a cold and hot water mixing-prevention device. The cold and hot water mixing-prevention device comprises a water tank, a cold water pipe and a hot water pipe, wherein the water tank is composed of a water tank shell, a water tank liner and a water tank insulating layer; the hot water pipe is arranged on one side of the upper part of the water tank, and the cold water pipe comprises a water inlet and a water outlet end positioned in the water tank; the water outlet end of the cold water pipe is arranged at a approximate-rectangular diagonal position formed by the cold water pipe and the hot water pipe in the water tank liner; the end part of the water outlet end of the cold water pipe is closed, and a plurality of water outlets are formed in the two horizontal side faces near the water outlet end of the cold water pipe. As the water heater adopts the cold and hot water mixing-prevention device, the hot water output rate of the water heater can be effectively increased. Actual tests prove that the hot water output rate can achieve more than 90 percent and the highest hot water output rate can achieve 93 percent, and the hot water output rate is higher than that of the same kind of water tanks. Meanwhile, as the hot water output rate is increased, under the condition that the same hot water amount is needed, the water heater with small volume can be purchased, and the procurement cost is reduced. Meanwhile, the energy source consumption is reduced, and the use cost is reduced.

Description

technical field [0001] The invention relates to a water heater, in particular to a water heater with a cold and hot water mixing preventing device, and belongs to the technical field of water heaters. Background technique [0002] Pressure-operated water heaters, including solar water heaters, electric water heaters, etc., have a tank that can withstand a certain working pressure. The water outlet method is the top water type, that is, cold water enters the water tank and the hot water is pushed out. Because when the hot water comes out, the cold water must first enter the water tank, so there is a problem of mixing the cold water with the hot water in the water tank. If no structure is adopted and the cold water directly enters the water tank, the cold water will quickly mix with the hot water, and the temperature in the water tank will drop quickly, making it impossible to bathe or use hot water, especially in horizontal water tanks, the water will be mixed faster. [00...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a water heater with an anti-mixing device for hot and cold water in view of the defects in the prior art that the hot water output rate is low and the hot water cannot be utilized to the greatest extent.

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