A heat exchanger and a gas water heater using the same

A technology for gas water heaters and heat exchangers, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of increasing the complexity of the structure, the difficulty of processing and the difficulty of assembly, etc.

Active Publication Date: 2021-08-20
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this patent, there are multiple water pipes that exchange heat with the flue gas. These water pipes are arranged in parallel, which increases the complexity of the structure, the difficulty of processing and the difficulty of assembly; and its heat exchange efficiency can be further improved.

Method used

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  • A heat exchanger and a gas water heater using the same
  • A heat exchanger and a gas water heater using the same
  • A heat exchanger and a gas water heater using the same

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1 to Figure 7 As shown, the heat exchanger includes:

[0030] The inner cavity of the shell 1 constitutes a shell side through which the first heat exchange medium circulates. The bottom surface of the shell 1 is provided with a shell inlet 11 , and the top surface of the shell 1 is provided with a shell side outlet 12 . The housing in this embodiment has a double-layer structure, and the interlayer 13 is filled with air; it can also be filled with other heat-insulating materials as required.

[0031] There is one heat exchange tube 2 for the second heat exchange medium to circulate in it to exchange heat with the first heat exchange medium in the casing, which is arranged in each casing 3 in sequence; between the heat exchange tube 2 and the inner wall of the casing There is a gap between them, and the first heat exch...

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PUM

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Abstract

The invention relates to a heat exchanger and a gas water heater using the heat exchanger, comprising a shell (1) and a heat exchange tube (2) pierced in the shell (1), the shell (1) ) is provided with a housing inlet (11) and a housing outlet (12); it is characterized in that the housing (1) is also provided with multiple sleeves (3) arranged side by side, and these sleeves (3) are divided into There are at least two layers, and each layer has at least one casing (3); each casing is connected to the corresponding adjacent layer of casing; tube (3); the second heat exchange medium enters the corresponding casing in the adjacent layer after being discharged from each casing; the casing inlet at the lowest layer is connected to the casing inlet (11), and is located at the uppermost layer The casing outlet of the casing is connected to the casing outlet (12). The invention can fully extend the stroke and residence time of the second heat exchange medium, thereby further enhancing the heat exchange effect and efficiency, and has a compact structure and is convenient for processing.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to a heat exchanger and a gas water heater using the heat exchanger. Background technique [0002] CN201820109002.8 discloses "A Flue Gas Waste Heat Recovery Tubular Heat Exchanger", which includes a shell, a flue gas circulation pipe, a filter device, a hot water chamber, a cold water chamber and a water pipe. The upper inner chamber of the shell is separated by a partition A hot water chamber is formed, and the lower inner cavity of the shell is separated by another partition to form a cold water chamber. The middle inner cavity of the shell is fixed with a flue gas circulation pipe, and the flue gas circulation pipe is in a spiral structure. A number of through holes are opened, and the hot water chamber and the hot water discharge pipe are connected through a plurality of water pipes, in which the two ends of the water pipes are respectively connected to the through holes of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/16F24H9/00F24H9/02
CPCF24H1/165F24H9/0005F24H9/02
Inventor 夏瑞丽
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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