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Condensing heat exchanger with inverted-V-shaped structure for gas water heater

A gas-fired water heater and condensing heat exchanger technology, which is applied in the directions of water heaters, air heaters, heat exchanger shells, etc., can solve the problems of easy generation of main heat exchangers, large overall structure and volume, complicated manufacturing processes, etc. It is beneficial to the design of the whole machine, the overall structure is compact, and the volume is small.

Active Publication Date: 2012-03-21
GUANGDONG MACRO GAS APPLIANCE
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of relatively high exhaust gas temperature of ordinary condensing gas water heaters, easy generation of condensed water in the main heat exchanger, complicated manufacturing process, high cost, easy corrosion, and large overall structure volume, the present invention proposes to solve these problems. new technical solutions

Method used

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  • Condensing heat exchanger with inverted-V-shaped structure for gas water heater
  • Condensing heat exchanger with inverted-V-shaped structure for gas water heater
  • Condensing heat exchanger with inverted-V-shaped structure for gas water heater

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Embodiment Construction

[0030] see Figure 1 ~ Figure 2 , the condensing heat exchanger 12 is arranged above the main heat exchanger 10, and is characterized in that it includes a fume collecting hood 21, the condenser box 13 is arranged above the fume collecting hood 21 through the condenser bracket 20, and the bottom of the condenser box 13 condenses There is no direct contact between the bottom 11 of the condenser box and the smoke collection hood 21; the smoke inlet 17 is set at the middle position of the bottom of the condenser box 11, and is matched with the opening at the top of the smoke collection hood 21; the bellows array composed of bellows 18 is set on Above the bottom 11 of the condenser box, an inverted V-shaped baffle 16 is arranged above the bellows array, and a condenser cover 14 is arranged on the top of the condenser box 13, and the bellows array and the inverted V-shaped baffle 16 are covered on the condenser box 13, the smoke outlet 15 is set on the condenser cover 14; the conde...

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Abstract

The invention relates to a condensing heat exchanger with an inverted-V-shaped structure for a gas water heater. The condensing heat exchanger is characterized in that the condensing heat exchanger comprises a smoke collecting hood, wherein a condenser box is arranged above the smoke collecting hood through a condenser bracket; a smoke inlet is formed in the middle position of the bottom of the condenser box; a symmetrical corrugated pipe array and an inverted-V-shaped baffle plate are sequentially arranged between the bottom of the condenser box and a condenser cover with a smoke exhaust opening; and a condensed water outlet is formed in a low position of the bottom of the condenser box. When the condensing heat exchanger works, due to the blocking function of the inverted-V-shaped baffle plate, flue gas flows backwards in two ways and enters the parallel corrugated array pipe area, and inverted-V-shaped forced convection heat transfer is formed, so that the temperature of the flue gas is reduced and the flue gas is collected on the two sides of the inverted-V-shaped baffle plate and then exhausted via the smoke exhaust opening; and the flue gas flowing path is in a double-inclined-Z-shaped curve, and the heat transfer efficiency is high. The condensing heat exchanger has the advantages of compact structure, simplicity, practicality, energy conservation, material conservation and relative low cost, and condensed water cannot be produced on a main heat exchanger.

Description

technical field [0001] The invention relates to a condensing heat exchanger, in particular to an inverted V-shaped condensing heat exchanger for a gas water heater. Background technique [0002] In view of the large amount of latent heat contained in the flue gas exhausted by traditional gas water heaters, people use various methods to recover and reuse latent heat, among which the use of condensing gas water heaters is one of them. [0003] Condensing gas water heaters generally use two sets of heat exchange systems to perform two heat exchanges to reduce the temperature of the flue gas in order to improve the thermal efficiency of the water heater. and tube heat exchange. After the high-temperature flue gas produced by gas combustion passes through the main heat exchanger, the temperature is still above 100°C when it enters the condensing heat exchanger. Although it is greatly reduced, without a path change process, the flue gas always chooses a place with less resistanc...

Claims

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Application Information

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IPC IPC(8): F24H8/00F28F9/24F28F1/08
CPCF28D7/00F24H1/00F28D1/0477F24H9/00Y02B30/102F28F1/08F23J15/06F23J2217/20F23J2900/13004F23M9/003F24D2200/18F24H8/00F24H8/006F24H9/0026F28D7/087Y02B30/00Y02E20/30
Inventor 余少言仇明贵邓海燕刘兵向熹
Owner GUANGDONG MACRO GAS APPLIANCE
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