Heat exchanger for gas water heater

A technology of gas water heaters and heat exchangers, which is applied to fluid heaters, lighting and heating equipment, etc. It can solve problems such as poor turbulence effects, fires, and scarcity of copper materials, so as to reduce material costs, prevent poisoning accidents, and ensure safety high performance effect

Inactive Publication Date: 2012-01-25
李长江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the inner wall and heat exchanger of the heat exchanger for gas water heaters are usually made of copper or aluminum. Because the local temperature of the combustion chamber is very high, the temperature resistance of copper or aluminum materials is relatively poor, and it is very easy to generate high temperature. Oxidation, if the smoke exhaust system is not smooth, the flame deviation can even burn through the inner wall of the combustion chamber and cause a fire phenomenon. The safety p

Method used

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  • Heat exchanger for gas water heater
  • Heat exchanger for gas water heater
  • Heat exchanger for gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example one: such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the heat exchanger for a gas water heater of the present invention mainly consists of a combustion chamber 1, a cavity inner wall 2, a burner 3 provided in the combustion chamber 1, an air inlet pipe 4 for supplying gas to the burner 3, and a water inlet pipe 5. , The outlet pipe 6 and tube-fin heat exchanger, the burner 3 can be infrared burner or earth burner, etc. The tube-fin heat exchanger is arranged above the combustion chamber 1, including fins 7 and passing through the fins. The water pipe 8 on the sheet 7, the water inlet pipe 5 is connected to one end of the water pipe 8, and the water outlet pipe 6 is connected to the other end of the water pipe 8. Since the inside of the firing chamber 1 is a high-temperature area, the fins 7 and the cavity inner wall 2 of the tube-fin heat exchanger can be stamped and formed with thin metal sheets resistant to high temperature and oxidation, such as shee

Example Embodiment

[0025] Embodiment two: such as Figure 4 As shown, the main structure is basically the same as that of the first embodiment, except that the heat exchange fins 11 can be provided on the inner wall 2 of the cavity to increase the heat exchange capacity.

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PUM

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Abstract

The invention relates to a heat exchanger for a gas water heater, which comprises a combustion chamber, a cavity inwall, a combustor arranged in the combustion chamber, a gas inlet pipe providing gas for the combustor, a water inlet pipe, a water outlet pipe, and a fin-tube heat exchanger arranged above the combustion chamber, wherein the fin-tube heat exchanger comprises fins and a water circulating pipe arranged on the fins in a penetrating manner, the water inlet pipe is connected with one end of the water circulating pipe, the water outlet pipe is connected with the other end of the water circulating pipe, the fins of the fin-tube heat exchanger and the cavity inwall are formed by punching high-temperature-resistance anti-oxidization thin metal sheets, such as thin alloy materials of iron chromium aluminum or nickel chromium aluminum. Rare earth catalyst layers for reducing emission of harmful gases in hot smoke are coated on the fins of the fin-tube heat exchanger. The fins of the fin-tube heat exchanger are provided with regular bending part in a punching manner in the length direction or width direction. The heat exchanger adopting the structure has the advantages of low production cost, long service life, good safety property, high heat exchange efficiency and capability of effectively reducing the emission of the harmful gases.

Description

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Claims

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Application Information

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Owner 李长江
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