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Combustion gas nozzle for blue flare combustion gas water heater and injection device using the same

A technology for gas water heaters and gas nozzles, applied in the direction of burners, gas fuel burners, combustion types, etc., which can solve the problems of reducing the flow rate of injected gas and energy loss of gas flow

Active Publication Date: 2008-06-04
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses vortex holes to reduce the primary air coefficient, which is essentially to reduce the flow rate of the injected gas, so that the negative pressure generated by the flowing gas is reduced to achieve the purpose of reducing the primary air coefficient. , 90-degree or 120-degree conical surface 14 will cause a large energy loss of gas flow

Method used

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  • Combustion gas nozzle for blue flare combustion gas water heater and injection device using the same
  • Combustion gas nozzle for blue flare combustion gas water heater and injection device using the same
  • Combustion gas nozzle for blue flare combustion gas water heater and injection device using the same

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Embodiment Construction

[0029] Figure 4 Shown is a structural diagram of the gas nozzle 1 of a blue flame gas water heater provided by the present invention. The gas nozzle 20 of the present invention is used in a closed gas water heater and faces the ejector hole of the fire exhaust burner. The gas nozzle 20 includes a central nozzle hole 21 and an inlet hole 22. The nozzle hole diameter d is smaller than the inlet hole diameter D. The nozzle hole and the inlet hole are connected by a compression cone 23. The compression cone The taper angle α of the hole 23 is any angle between 15° and 30°. The taper angle α of the taper hole is preferably 25°±5°.

[0030] The design of the gas nozzle directly determines the gas consumption of the combustor, thereby determining the thermal load of the combustor, and the angle of the nozzle channel determines the energy loss of the gas flow and the change of the pressure in front of the nozzle. Experiments show that when the contraction angle α of the nozzle is betwee...

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Abstract

The invention provides a gas nozzle of a blue flame gas water heater, wherein, the gas nozzle is arranged on a multiway distributor, and is just opposite to an injector hole of a fire grate burner, and comprises a central jet orifice and an air inlet. The invention is characterized in that: the diameter d of the jet orifice is smaller than the diameter D of the air inlet; the jet orifice and the air inlet are connected with a taper hole, and the size of the cone angle alpha of the taper hole is any angle between 15 degrees and 30 degrees. The invention has the advantages that: the gas nozzle provided by the invention and an injector device for using the nozzle can guarantee the primary air coefficient within a range of 0.5 to 0.7; the burning flame is clear, transparent and obvious blue, and the content of CO in the fume is below 300ppm.

Description

Technical field [0001] The invention relates to a gas nozzle, in particular to a gas nozzle of a blue flame gas water heater capable of fully burning gas and an ejector device using the nozzle. Background technique [0002] Gas water heater is a kind of water heater widely used in households at present. It has the advantages of small size, fast heating speed, and instant heating. With the deterioration of the environment and the serious energy problem, energy saving and environmental protection have become a worldwide theme, and it has also become a combustion The development trend of technology. For gas water heaters, improving combustion heat efficiency and reducing exhaust gas emissions are a long-term goal of continuous improvement. [0003] The structure of the existing closed gas water heater is as follows figure 1 As shown, it mainly includes: water inlet valve 1, inlet water flow sensor 2, gas valve 3, pulse igniter (not shown in the figure), gas passage 4, multi-row fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/64F23D14/58
Inventor 孙京岩郑涛王任华杨开明孙京军
Owner HAIER GRP CORP