Water-storage-type water heater capable of improving hot water outlet efficiency

Abstract

A water storage type water heater capable of improving hot water output rate, comprising a water tank (1), and a heating device (5); the water tank (1) is provided with a water inlet device (3) at the bottom, and a water outlet device (4) at the top; the water inlet device (3) comprises an inside water inlet pipe (11); the inside water inlet pipe (11) is connected to an outer water inlet pipe (12), and is provided with a plurality of uniformly distributed water outlet holes (15); the water outlet device (4) comprises an inside water outlet pipe (13); the inside water outlet pipe (13) is connected to an outer water outlet pipe (14), and comprises at least two water suction holes (16) uniformly distributed by areas; cold water passes through the outer water inlet pipe (12) and enters the inside water inlet pipe (11), then passes through the plurality of uniformly distributed water outlet holes (15) and smoothly and regularly enters the water tank (1) at a low speed; and after the cold water in the water tank (1) is heated by the heating device (5), hot water passes through the inside water outlet pipe (13) and the water suction holes (16), and uniformly and regularly flows out of the outer water outlet pipe (14). The cold water and the hot water are not easily mixed, and the distance the hot water flows is reduced, thus greatly improving the output rate of the hot water flowing out of the inside water outlet pipe (13).

Description

Technical field [0001] The present invention involves the field of water storage water heater technology, and specially involves a water storage water heater that can increase the water output rate of thermal water. Background technique [0002] At present, the water storage water water in the existing technology usually has a water inlet pipe and a water outlet pipe. Generally, the electric heating pipe or the electric heating plate is set in the water tank.Heating, the existing heating device enables the purpose of heat transfer and insulation through the resistance wire, magnesium oxide, and metals on the outer layer. The heat loss during this method is large, resulting in a lower thermal conversion rate.In addition, when the existing technology is out of water, it is necessary to inject cold water to press the hot water out of the water tank because the cold water concentrated in the water tank.The spherical high -speed flow area has different density characteristics and hori...

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Problems solved by technology

[0002] At present, the water storage water heaters in the prior art are usually provided with water inlet pipes and water outlet pipes, and electric heating is generally adopted, and electric heating pipes or electric heating plates are arranged on In the water tank, the electric heating tube or electric heating plate is used to directly heat the water in the water tank. The existing heating device achieves the purpose of heat transfer and insulation through the resistance wire, magnesium oxide and the outer metal. Larger losses, resulting in a lower overall heat transfer rate

In addition, in the prior art, when the water is discharged, it is necessary to inject cold water to press the hot water out. Since the cold water enters the water tank at one point, the cold water in the water tank is rapidly ejected and flows at a high speed to the surroundings, forming a large hole at the water inlet. Spherical high-speed flow area, due to the characteristics of different densities of hot water at different temperatures and the characteristics of horizontal stratification

After the cold water enters, it immediately flows to the surroundings at a high speed to form a new mixed layer of cold water and hot water, and is still flowing at a high speed to expand the mixed layer, and the greater the flow rate, the greater the impact, resulting in low and sudden hot water output from the outlet pipe. Hot and cold phenomenon, the current hot water output rate of water heaters is 50-83%, which causes a lot of energy waste

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