Porous ceramic combustion gas water heater

A technology of gas water heaters and porous ceramics, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of increased content, achieve low NOX emissions, compact structure, and improve thermal efficiency

Inactive Publication Date: 2005-01-26
傅维镳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a large air excess coefficient can reduce NO X , but in calculating NO X emissions, it m

Method used

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  • Porous ceramic combustion gas water heater
  • Porous ceramic combustion gas water heater
  • Porous ceramic combustion gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] A porous ceramic water heater for testing has been designed according to the technical scheme of the present invention, and its given and measured parameters are as follows:

[0020] Water flow: Q 水 =100kg / h, natural gas flow rate: Q 天然气 =0.43~0.54m 3 / h

[0021] Calorific value of natural gas: H 天然气 =33440(KJ / m 3 ), excess air coefficient: α=1.1~1.5

[0022] Exhaust gas temperature: t 烟 =150~200℃, water inlet temperature: t 进口 =25°C

[0023] Water outlet temperature: t 出口 =45~56℃, specific heat of water: C p水 =4.18KJ / kg·K

[0024] efficiency(%)

[0025] It can be seen that the porous ceramic water heater has high thermal efficiency and low NO X Emissions, which is very beneficial to the user, it saves the natural gas used and thus saves money. Almost every house has a water heater, and its annual NO X The emissions are considerable. If each water heater has its NO X Emissions are only 40-50ppm, the annual NO X At least 100 times lower, whic...

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Abstract

The invention discloses a lacunaris chinaware gas water heater, it relates to a burning equipment which burns gas fuel. The main character of the invention is putting water heater pipes into lacunaris chinaware material directly to form a lacunaris chinaware heat exchanger, and it adopts two layers structure, and the first lacunaris chinaware heat exchanger provides two time wind inlet on the wall. The water heater changes traditional convection diathermanous method to lacunaris chinaware radiate and lead method, not only improves heat transfer efficiency greatly, but also has little bulk, and compact structure. It is more bigger than traditional convection diathermanous, its air excessive quotiety is equal or a little more than 1, it can not only improve heat efficiency, but also reduce NOX exhaustion, so it is the real high efficiency, low pollution water heater.

Description

technical field [0001] The invention relates to a combustion device for burning gas fuel, in particular to a gas water heater. Background technique [0002] The gas water heaters currently on the market all use the heat energy generated by the combustion of gas fuel to perform convective heat exchange with water pipes, thereby converting the heat energy of the gas into the heat enthalpy of water. The greater the convective heat transfer, the higher the efficiency, that is, the same heat energy can raise the temperature of hot water higher. For this reason, almost all water heaters have fins welded on the outer wall of the water pipe to enhance convective heat transfer. However, it is this fin that makes the existing water heater bulky. This is because the fins cannot be in direct contact with the high-temperature combustion gas, otherwise they are easy to burn, and the fins can only be kept away from the high-temperature zone of the flame, which increases the volume of the...

Claims

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Application Information

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IPC IPC(8): F24H1/16F24H9/18
Inventor 傅维镳
Owner 傅维镳
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