Electric water heater provided with water flow switch with pressure reduction function and non-metallic injection-molded water tank
A water flow switch, electric water heater technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as inability to automatically adjust the pressure of the water tank, cracks in the thermal expansion and contraction of the water tank, water leakage, etc.
Inactive Publication Date: 2016-06-29
GUANGDONG SHUNDE GUANGSHENG ELECTRICAL APPLIANCE
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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 tanks are all pressure-bearing structures with a rated pressure of 0.6 Mpa, the test pressure is 1.2Mpa; this kind of 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
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[0014] Attached below Figures 1 to 8 In the accompanying drawings: housing 1, cold water inlet pipe 2, hot water outlet pipe 3, water flow switch 4 with decompression function, controller 5, electric heating pipe 6 (upper electric heating pipe 6-1, lower Electric heating tube 6-2), sealing and fixing point 7, water tank 8, water nozzle 9, temperature measurement or temperature limit switch installation pipe 10, flange 11, pressure relief valve 14, sewage outlet 15;
[0015] figure 1 , Figure 3 to Figure 5 It is a water flow switch 4 with a decompression function, and is composed of two functional parts A and B.
[0016] In part A, the water inlet and outlet channels in the main body 4-1 are not directly connected, but are separated by the cover plate 4-2. When there is water flowing, the water will forcefully push the cover plate 4-2, and at the same time push the seal 4 -3 and the pusher 4-4, and make the movable contact 4-9 and the static contact 4-8 contact or make the...
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Abstract
The invention provides an electric water heater provided with a water flow switch with a pressure reduction function and a non-metallic injection-molded water tank. The water tank 8 is made of non-metallic materials through the injection molding technique, and the water flow switch 4 with the pressure reduction function is installed on a water inlet pipeline of the water tank and is composed of a component A and a component B. According to the component A, a water inlet channel and a water outlet channel in a body 4-1 are separated by a cover plate 4-2; and when water flows in the component A, the water can forcibly push the cover plate 4-2 and make a movable contact 4-9 and a static contact 4-8 be in contact or make a microswitch 4-7 be turned on, and a circuit is closed. According to the component B, a transverse through hole is formed in the small end of a piston 4-12, and a hole is further formed in the middle of the piston 4-12; when water enters the component B, the water passes through the transverse through hole and enters the water tank from the middle hole of the piston 4-12; and when the pressure in the water tank is increased, backpressure is generated at the big end of the piston 4-12, the piston 4-12 is made to move, and the opening degree of a water inlet 4-14 is decreased or even the water inlet 4-14 is closed.
Description
technical field [0001] The invention relates to a non-metal injection molding water tank electric water heater 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 tanks are all pressure-bearing structures with a rated pressure of 0.6 Mpa, 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 improvement, it is a non-metallic injection-molded water tank electr...
Claims
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Login to View More IPC IPC(8): F24H1/20F24H9/00F24H9/20
Inventor 刘运柳岑自健刘伶刘成
Owner GUANGDONG SHUNDE GUANGSHENG ELECTRICAL APPLIANCE