Single-tank, double-pipe and bidirectional electric heating device and air energy instant electric water heater

Abstract

The invention provides a single-tank, double-pipe and bidirectional electric heating device and an air energy instant electric water heater. The single-tank, double-pipe and bidirectional electric heating device comprises a cylindrical tank body, the two ends of the tank body are connected with an upper end cover and a lower end cover in a sealing mode, the lower end cover is provided with a water inlet, a water outlet and a binding post, the tank body is internally provided with two layers of concentric pipe bodies which are an inner pipe body and an outer pipe body, an electric conduction heating body is arranged on a space layer between the inner pipe body and the outer pipe body, and a communicated water flow channel is formed by the inner channel of the inner pipe body and the annular channel between the tank body and the outer pipe body. The path length of water flow is increased, and the heating area of the water flow pipe bodies is increased by placing pipe bodies into the single tank body to divide the space inside the tank body, the process of obtaining the heating energy directly and bidirectionally transmitted by the heating body is accelerated, the heating and acting heat effect ratio per unit time of the tank body is effectively improved, and the power loss and the heating loss are reduced.

Description

[0001] technical field [0002] The invention belongs to the technical field of water heaters, and is an important improvement to the existing instant electric water heater heating device. Specifically, it relates to a single-tank, double-tube bidirectional electric heating device and an air energy instant water heater. And it extends to the application field of water heating and water heaters. Background technique [0003] The heating device of the instant electric water heater widely used on the market mainly adopts two kinds of electric heating heating elements of metal pipe and non-metal pipe at present. [0004] The metal tube heating element has the characteristics of high thermal efficiency, simple heating method, good water pressure resistance, low noise, high stability and durability of the whole machine, but its biggest disadvantage is that it cannot realize the true separation of water and electricity. [0005] Non-metallic tube heating elements are mostly made o...

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Problems solved by technology

[0007] The present invention provides a single-tank double-pipe bidirectional electric heating device and an air energy instant water heater, which can optimize and solve the high heating power and low heating conversion efficiency existing in the prior art in terms of tank structure and heating technology. problems, including some structural inherent defects such as power attenuation

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