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Domestic gas instantaneous water heater capable of realizing gas-air proportional control

An air ratio, water heater technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., to achieve the effect of reducing the volume and overall size of the machine, ingenious design, and improving the thermal strength of the fire hole

Inactive Publication Date: 2009-05-27
VATTI CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Domestic gas instantaneous water heater capable of realizing gas-air proportional control
  • Domestic gas instantaneous water heater capable of realizing gas-air proportional control

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Embodiment

[0011] The structure diagram of the present invention is as figure 1 , 2, including electrical control device (1), water flow sensing device (2), burner (3), heat exchanger (4), smoke exhaust device (5), fan (6), combustion chamber (7), proportional valve (8), switching solenoid valve (11), several segmented solenoid valves (12), cold water temperature sensor (13), hot water temperature sensor (14) and housing (15), wherein the combustion chamber (7) is arranged at the lower part of the shell (15), the burner (3) is placed in the combustion chamber (7), the fan (6) is placed beside the combustion chamber (7), and the heat exchanger (4) is placed Above the burner (3), the smoke exhaust device (5) is placed above the heat exchanger (4), and the water inlet P of the water heater passes through the water flow sensor device (2) and the water inlet pipe (9) ), the water outlet of the heat exchanger (4) communicates with the water heater outlet Q through the water outlet pipe (10), ...

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Abstract

A gas-air proportion technology contains electric controller, water flow sensor, burner, heat-exchanger, smoke exhauster, combustion chamber, switch solenoid valve, casing, cold water temperature sensor in water inlet of water heater, hot water temperature sensor in water outlet of water heater, fan, proportional valve, plural sectional solenoid valves. The rotation speed of fan is automatically adjusted synchronously according to open size of proportional valve, which is proportional to heating power of burner. The heating power W= Q#-[1] x (T1-T2)K x K1 x eta, wherein the Q#-[1] is present water flow detected by water flow sensor, T1 is hot water temperature set by hot water temperature sensor, T2 is cold water temperature set by cold water temperature sensor, K is conversion coefficient, K1 is adjusting coefficient, eta is heat efficiency.

Description

1. Technical field: [0001] The invention is a household gas instant water heater capable of adjusting the gas-air ratio, which belongs to the transformation technology of the gas water heater. 2. Background technology: [0002] Existing gas instant water heaters require primary air and secondary air for combustion of gas. The primary air enters the burner through the injector tube of the burner and is premixed with the gas before burning at the burner port. When the gas burns at the burner port, it needs Sufficient secondary air can be used for full combustion. However, there are two methods of supplementing secondary air for existing burners: natural induced draft type and blast type. Too narrow for larger loads. The blower of blast combustion is divided into several speeds to meet the air required for combustion, but it cannot be tracked linearly. Changes or fluctuations in gas pressure can lead to flame separation, misfiring, backfiring or flameout. For this reason, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/16F24H9/20
Inventor 黄启均
Owner VATTI CORP LTD
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