A kind of interlayer water tank for water heater and its processing method
A processing method and water heater technology, which are applied to fluid heaters, heating devices, solar heating devices, etc., can solve the problems of reducing the service life of water tanks, easily damaging the enamel layer, and easily falling off the enamel layer, so as to reduce installation accuracy and process operation Simple, easy-to-operate effects
Inactive Publication Date: 2016-05-11
宁波帅康热水器有限公司
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Problems solved by technology
The water heater with this structure is easy to damage the enamel layer in the inner tank during the welding process, and the enamel layer is easy to fall off, which greatly reduces the service life of the water tank
Method used
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Embodiment 2
[0061] Such as Figure 5 to Figure 10 , Figure 14 to Figure 15 As shown, according to the embodiment of the first sandwich water tank for water heaters provided by the present invention, it includes an inner tank 1, an outer cylinder 2 sleeved on the inner tank 1, and end tubes installed at both ends of the inner tank 1. Cover 3, the inner tank 1 is provided with a water inlet pipe 11 and a water outlet pipe 12, the water inlet pipe 11 and the water outlet pipe 12 protrude from the end cover, and the outer cylinder 2 is provided with a circulating medium inlet pipe 13 and The circulating medium outlet pipe 14 , the circulating medium inlet pipe 13 and the circulating medium outlet pipe 14 extend out of the outer cylinder 2 . The inner tank 1 is provided with a collar 4, the collar 4 has an expansion end 41, and the expansion end 41 is connected with the outer cylinder 2 after expansion, and the collar 4 further includes a welding end 42, the welding end 42 is welded on the ...
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The invention relates to an interlayer water tank for a water heater and a manufacture method thereof. The manufacture method comprises the following steps of 1, welding two couplings on an inner container, wherein the largest outer diameter of at least one coupling is smaller than the inner diameter of an outer cylinder; 2, performing enamel sintering on the inner container; 3, sleeving the outer cylinder onto the inner container, expanding the coupling, wherein the largest outer diameter of the coupling is smaller than the diameter of the outer cylinder, and welding the coupling with the outer cylinder; 4, finishing all the welding to form the interlayer water tank. By means of the manufacture method, the interlayer water tank for the water heater can effectively avoid damage to an inner enamel layer of the inner container during welding process of the outer cylinder, has low precision requirement on workpieces, is easy to operate, and improves production efficiency of products.
Description
technical field [0001] The invention relates to a processing method for a sandwich water tank used for a water heater, and also relates to a sandwich water tank used for a water heater. Background technique [0002] Along with the raising of people's living standard, solar water heater and electric water heater come into people's life, but the main part water tank of water heater all adopts stainless steel material to form through welding after rounding at present. For example, the Chinese patent No. ZL200820036474.1 is a utility model patent, and the announcement date is April 29, 2009. It discloses a vertical wall-mounted jacketed solar water tank, including a shell, water inlet and outlet pipes, a medium circulation port, and an inner tank body. An insulating layer is arranged on the inner side, and an annular inner jacket is arranged between the insulating layer and the main body of the inner container. The water heater with this structure is easy to damage the enamel l...
Claims
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IPC IPC(8): F24H9/00F24J2/46
CPCY02E10/40
Inventor 邹国营范余辉宋小林
Owner 宁波帅康热水器有限公司