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Gas water heater integrated stainless steel heat exchanger

A gas water heater, stainless steel technology, applied in the direction of heat exchanger shell, fluid heater, heat exchange equipment, etc., can solve the problems of complex heat exchanger processing, poor welding quality, easy scaling, etc., to avoid the rise of water temperature The effects of too fast, high welding quality, and reduced water temperature rise

Active Publication Date: 2014-08-20
A O SMITH CHINA WATER HEATER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a gas water heater integrated stainless steel heat exchanger to solve the problems of complex processing, poor welding quality and easy scaling of the existing heat exchanger

Method used

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  • Gas water heater integrated stainless steel heat exchanger
  • Gas water heater integrated stainless steel heat exchanger
  • Gas water heater integrated stainless steel heat exchanger

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Embodiment Construction

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0035] Such as figure 1 , Figure 10 and figure 2 As shown, the gas water heater integrated stainless steel heat exchanger of the embodiment of the present invention includes: a surrounding frame 1 and a plurality of heat exchange tubes 9 passing through the surrounding frame 1, and the heat exchange tubes 9 passing through the surrounding frame 1 A water collection box 7 is provided at the end of the tube, and the water collection box 7 connects each of the heat exchange tubes 9 into a continuous flow channel; at least one row of the heat exchange tubes 91 adjacent to the heating zone is provided with a strip-shaped Part 910, the heat exchange tubes 91 are the row of heat exchange tubes closest to the heating area or burner, and the heat exchange tubes in this are...

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Abstract

The invention provides a gas water heater integrated stainless steel heat exchanger which comprises a surrounding frame and multiple heat exchange tubes penetrating the surrounding frame. Water collecting boxes are arranged at the ends of the heat exchange tubes penetrating through the surrounding frame and enable the heat exchange tubes to be connected to form a continuous flowing channel. Elongated parts are arranged in at least one row of heat exchange tubes close to a high-temperature heating region. The water collecting boxes packages the elongated parts in the heat exchange tubes. The surrounding frame, the heat exchange tubes, the water collecting boxes and the elongated parts are assembled and welded to form an integral structure. The integrally-welded stainless steel heat exchanger is simple in structure and processing and small in size, the sealing performance and the corrosion resistance performance are greatly improved, a water flow field in a gas quick water heater tube is changed through the elongated parts, the situation of original uneven water temperature distribution is changed, accordingly scales are decreased, and the service life of the heat exchangers is prolonged.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a gas water heater integrated stainless steel heat exchanger. Background technique [0002] The heat exchangers used in gas water heaters in the prior art are generally copper heat exchangers. The heat exchanger includes a surrounding frame and a plurality of heat exchange tubes passing through the surrounding frame, and the ends of the heat exchange tubes passing through the surrounding frame The "U" joints are connected in pairs, so that all the heat exchange tubes form a continuous flow channel. During the processing of this structure, each joint is welded separately to the end of the heat exchange tube, the operation is complicated, time-consuming, and the welding quality consistency is poor. With the prolongation of the use time, the heat exchanger material itself will be corroded by a small amount of nitrogen oxide (NOx) aqueous solution condensed from the flue gas during norm...

Claims

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Application Information

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IPC IPC(8): F24H9/00F28F9/18F28F21/08F28F19/00
Inventor 丁威邱步毕大岩
Owner A O SMITH CHINA WATER HEATER CO LTD
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