Fully premixed combustion gas heating water heater

A gas-fired heating and fully premixed technology, which is applied in the direction of burners, combustion methods, and combustion types, can solve problems such as thermal efficiency decline, poor combustion conditions of gas-fired heating water heaters, and normal use of users.

Inactive Publication Date: 2014-03-05
GUANGDONG VANWARD NEW ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the mixture of gas and air cannot be burned in the best state at this time, there will be adverse phenomena such as thermal efficiency decline, abnorm

Method used

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  • Fully premixed combustion gas heating water heater
  • Fully premixed combustion gas heating water heater
  • Fully premixed combustion gas heating water heater

Examples

Experimental program
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specific Embodiment approach

[0019] Specific implementation method: see attached figure 1 , attached figure 2 As shown, this embodiment includes a heat exchanger 1, an ion current feedback needle 2, a burner 3, a fan 4, a control circuit module 5, an air pipe 7, a gas pipe 8, a gas regulating valve 6, and the inner chamber of the heat exchanger 1 A closed combustion chamber 11 is formed, the burner 3 is arranged in the closed combustion chamber 11, the air outlet of the fan 4 communicates with the air inlet of the burner 3, the gas pipe 8 and the air pipe 7 communicate with the air inlet of the fan 4, and the gas The regulating valve 6 is connected in series on the gas pipe 8, the ion current feedback needle 2 is installed in the closed combustion chamber 11, the ion current feedback needle 2 is electrically connected with the flame ion current detection unit 51, the flame ion current detection unit 51, the gas regulating valve 6 , The fan 4 is electrically connected to the control circuit module 5 .

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Abstract

A fully premixed combustion gas heating water heater comprises a heat exchanger, a combustor, a fan, a gas regulating valve, a gas pipe and an air pipe. A closed combustion chamber is formed in an inner cavity of the heat exchanger, the combustor is arranged in the closed combustion chamber, an air outlet of the fan is communicated with an air inlet of the combustor, the gas pipe and the air pipe are communicated with an air inlet of the fan, the gas regulating valve is connected to the gas pipe in series, and the gas regulating valve and the fan are electrically connected with a control circuit module. The fully premixed combustion gas heating water heater further comprises an ionic current feedback pin and a flame ionic current detecting unit. The ionic current feedback pin is installed inside the closed combustion chamber, and the flame ionic current detecting unit is electrically connected with the ionic current feedback pin and the control circuit module. When gas component changes, the fully premixed combustion gas heating water heater enables the proportion of gas and air to be adjusted to a new air-fuel ratio, and therefore the purpose of enabling gas to be combusted fully is achieved.

Description

technical field [0001] The invention relates to a fully premixed combustion gas heating water heater. Background technique [0002] In the prior art, gas heating water heaters can be divided into partial premix combustion gas heating water heaters and full premix combustion gas heating water heaters according to the combustion method of gas, especially the mixing method of gas and air. The characteristics of fully premixed combustion: gas and air are fully mixed according to the chemical equivalent ratio before combustion, and then burned, which has the following advantages: sufficient combustion of gas, high volumetric heat intensity, high thermal efficiency, and low emission indicators of harmful smoke etc. [0003] But when the composition of the gas changes, the air-fuel ratio of the gas combustion changes, and the gas combustion will be abnormal. Since the mixture of gas and air cannot be burned in the best state at this time, there will be adverse phenomena such as t...

Claims

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Application Information

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IPC IPC(8): F24H1/22F24H9/18F24H9/20F23D14/04F23D14/60
Inventor 叶远璋孙云帆梁友高欧金桥
Owner GUANGDONG VANWARD NEW ELECTRIC CO LTD
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