External optical wave heating metal water tank electric water heater provided with water flow switch with pressure reduction function

Abstract

An electric water heater with an external light wave heating metal water tank equipped with a water flow switch with decompression function, the water tank 8 is made of metal material, and a water flow switch 4 with decompression function is installed on the water inlet pipeline of the water tank, composed of A and B Two parts: Part A, in the main body 4-1, the water inlet and outlet channels are separated by the cover plate 4-2, when water flows, the water will forcefully push the cover plate 4-2, and make the moving contact The point 4-9 is in contact with the static contact 4-8 or the micro switch 4-7 is connected, and the circuit is conducted; in part B, the small end of the piston 4-12 has a horizontal through hole, and there is also a hole in the middle. When water enters, The water enters the water tank from the middle hole of the piston 4-12 through the horizontal hole. When the pressure in the water tank increases, the piston 4-12 and the big end generate back pressure, which causes the piston 4-12 to shift, and the water inlet 4-12 is closed down or even closed. 14. The heating method used in the water tank is to install the halogen or carbon fiber electric heating tube that generates heat by light waves in the air in the stainless steel casing.

Description

technical field [0001] The invention relates to an electric water heater with an external light wave heating metal blow molding water tank equipped with a water flow switch with a decompression function. Background technique [0002] At present, all household electric water heaters in the world, the water inlet pipe is connected to the water source, from the water inlet to the water tank, without installing other components, can not automatically adjust the pressure in the water tank, the water tank is a pressure-bearing structure, and the rated pressure is generally The test pressure is 0.6Mpa, and the test pressure is 1.2Mpa; this pressure will cause many difficult problems; for example, the heat expansion and contraction water tank will crack, leak, and explode under pressure, which is a problem in the world. Contents of the invention [0003] The present invention improves the existing electric water heater with a water tank made of metal materials. After the improveme...

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Problems solved by technology

[0002] At present, all household electric water heaters in the world, the water inlet pipe is connected to the water source, from the water inlet to the water tank, without installing other components, can not automatically adjust the pressure in the water tank, the water tank is a pressure-bearing structure, and the rated pressure is generally 0.6Mpa, the test pressure is 1.2Mpa; this kind of pressure will cause many difficult problems; for example, the water tank that expands with heat and shrinks with cold will crack, leak, and explode under pressure, which is a problem in the world

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