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Gas burner water heater condensing type heat-exchanger rig

A technology for gas water heaters and heat exchange devices, applied in fluid heaters, heat exchange equipment, heat exchanger shells, etc., can solve problems such as difficulty in popularization and use, high manufacturing costs, corrosion of condensed water, etc., and achieve full utilization of heat energy, Low cost, anti-corrosion effect

Active Publication Date: 2008-06-04
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ordinary water heaters with condensing heat exchangers can improve part of the thermal efficiency, but the thermal efficiency generally does not exceed 95%, and the corrosion of condensed water causes material problems, high manufacturing costs, and short service life, making it difficult to popularize and use

Method used

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  • Gas burner water heater condensing type heat-exchanger rig
  • Gas burner water heater condensing type heat-exchanger rig

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Embodiment Construction

[0028] Such as figure 1 As shown, the structure of a condensing heat exchange device for a water heater in the present invention includes a housing 3 , a chimney 6 at the upper part of the housing, a cold water inlet 1 at the lower part of the housing, a water inlet pipe 10 , and a warm water outlet 8 . The main feature is that a split condensing waste heat exchanger and its condensed water collection structure are arranged in the shell 3 . The split condensing waste heat exchanger is divided into two parts, including a first heat exchanger 20 with heat exchange tubes and a second exchanger 12, and the heat exchange tubes of the first heat exchanger 20 are coiled tubes 4 One end of the coil pipe 4 communicates with the cold water inlet 1 and its water inlet pipe 10, and the other end communicates with the warm water outlet 8, and the warm water outlet 8 communicates with the second heat exchanger 12 through the connecting pipe 11. The second heat exchanger The exchanger 12 is...

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Abstract

The invention discloses a condensing heat exchanger of a gas water heater, comprising a housing, a smoke exhausting cylinder, a cold water inlet opening and an inlet tube and a warm water outlet, wherein, the housing is provided with a split type condensing residual heat exchanger and a condensed water collecting structure; the split type condensing residual heat exchanger comprises a first heat exchanger with a heat exchange tube and a second heat exchanger; a warm water outlet of the first heat exchanger is communicated with the second heat exchanger through a connecting pipe; the second heat exchanger is provided with a high temperature water outlet pipe; the condensed water collecting structure comprises a fair water fin and a groove part on the bottom of the housing as well as a condensed water outlet tube. The cold water of the device can be preheated by the residual heat in the first heat exchanger and then enters into the second heat exchanger where the preheated cold water becomes the high temperature water after heated and then flows out. The condensing heat exchanger of the invention has high thermal efficiency and low funnel temperature. Moreover, the condensed water is separated from the heat exchanger, which ensures that the exchanger is free from corrosion.

Description

technical field [0001] The invention relates to a gas water heater, in particular to a condensing heat exchange device of the gas water heater. Background technique [0002] Generally, a gas water heater, such as the Chinese patent [Foshan Shunde District Wanhe Group Co., Ltd.] with application number 200420094236.8, discloses a gas water heater whose structure includes a smoke exhaust duct, a fan, a heat exchanger, a water-gas linkage valve, The burner, the water tank and the casing, among which a coaming plate is installed between the water tank and the burner to form a semi-sealed combustion chamber, and the lower part of the combustion chamber is provided with a number of exhaust channels for air intake to improve the utilization rate of the burner. However, no improvement has been proposed in the aspect of the condensing heat exchange device. [0003] The Chinese patent application number 95243087.8 discloses a condensing gas instant water heater. Its main feature is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/00F24H9/16F28F9/26
Inventor 孙京岩李键郑涛王任华刘联产
Owner HAIER GRP CORP
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