CN201281336Y

CN201281336Y - Jet type gas burner and ignition switch

Info

Publication number: CN201281336Y
Application number: CNU2008202014776U
Authority: CN
Inventors: 杨锡奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-07-29
Anticipated expiration: 2018-09-28

Abstract

The utility model relates to the technical field of household appliances, in particular to a furnace head of a gas furnace and an ignition switch structure, wherein the furnace head comprises a furnace cover, a big injection pipe, a small injection pipe and an air rectification cover; the furnace cover, the big injection pipe and the small injection pipe are communicated in the axial direction to form an air flue; the centre of the top end of the furnace cover is provided with an air injection hole; the periphery of the air injection hole is provided with a plurality of small air injection holes; the furnace cover is combined with the upper end of the big injection pipe; the lower end of the big injection pipe is communicated with the small injection pipe; the lower end of the small injection pipe is communicated with an air transportation pipe; the other end of the air transportation pipe is connected with an ignition switch; the big injection pipe is sleeved on the upper end of the air rectification cover; the small injection pipe is coated in the air rectification cover; the small injection pipe is provided with an air injection hole in the radial direction; and the bottom end of the big injection pipe is provided with the air injection hole in the axial direction. The utility model can make fuel and air be mixed uniformly, has fast burning speed, higher flame temperature, less heat loss and high heat efficiency, is propitious to save energy source, reduces pollution of environment, has compact structure and good security and is firm and durable.

Description

Jet type gas burner and ignition switch

Technical field:

The utility model relates to household electrical appliance technical field, refers in particular to the burner and the ignition switch structure of gas furnace.

Background technology:

At present, gas furnace uses for broad masses, and burner in the stove and accessory and ignition switch constitute combustion system, and ignition switch is equipped with control valve, has the function of adjusting the air inlet size.Existing domestic gas stove and accessory, its ignition switch place only is the input combustion gas, and the burning form that burner adopts is a diffusion combustion, combustible gas mixes from mouth of pipe outflow and with air, the igniting after-combustion is because diffusion velocity is slower between gas molecule, so take the gas combustion speed of diffusion combustion slower, its thermal efficiency is lower, and heat scatters and disappears easily.

Summary of the invention:

The purpose of this utility model is to provide a kind of speed that the fuel gas molecule spreads mutually, mixes with air molecule that increases substantially, and allows combustible gas mix more uniform jet type gas burner and ignition switch structure with air.

The utility model again a purpose to provide a kind of volume little, in light weight, structure is tight, and is easy and simple to handle, safe and reliable jet type gas burner and ignition switch.

For achieving the above object, the utility model adopts following technical scheme:

Jet type gas burner and ignition switch, be connected by appendix between described burner and the ignition switch, form combustion system, burner comprises bell, big jet pipe, little jet pipe and an air radome fairing, bell, big jet pipe and little jet pipe are axially connected, form air flue, bell top centre is provided with puff prot, and several jet apertures are arranged in the puff prot peripheral distribution, bell is connected the upper end in big jet pipe, the lower end of big jet pipe is communicated with little jet pipe, and the lower end of little jet pipe is then connected with appendix, the appendix other end ignition switch of plugging into; The big jet pipe of described air radome fairing upper end socket, little jet pipe then is coated in the air radome fairing, radially is provided with injection hole on the little jet pipe, and the bottom of big jet pipe then axially offers injection hole.

Described ignition switch, its valve seat is provided with two air inlets, air inlet input combustion gas, another air inlet input compressed air can enter the hybrid chamber of valve seat front end through the spool regulation and control, and the hybrid chamber front end is provided with outlet and connects with appendix; On valve seat, also lead to the igniting air flue; The air inflow of two air inlets size is opposite on the valve seat, is regulated and control by spool.

In the such scheme, air radome fairing lower end is a horn shape, and promptly inner chamber forms taper, is beneficial to air and incorporates in the combustion gas.

Linking between bell, big jet pipe, little jet pipe and the air radome fairing is adopted and is threaded.

Jet type gas burner and ignition switch structure that the utility model provides, it is more even that combustion gas is mixed with air, adopt and mix burning more earlier, the speed of mixed combustion is faster than the speed of diffusion combustion thus, so the burned flame temperature is higher, heat scatters and disappears less, thermal efficiency height, help energy savings, reduce the pollution of environment.

The utility model advantage again is that volume is little, in light weight, structure is tight, sturdy and durable, energy-conservation, safety.

Description of drawings:

Accompanying drawing 1 is the utility model structure principle chart;

Accompanying drawing 2 is a furnace head structure schematic diagram described in the utility model;

Accompanying drawing 3 is the partial structurtes schematic diagram of ignition switch described in the utility model.

The drawing reference numeral explanation:

10 bells, 11 puff prots, 12 jet aperture 20 big jet pipe 21 injection holes 30 little jet pipe 31 injection holes 40 air radome fairings 50 valve seats 60 spools 70 hybrid chambers 80 igniting air flues 90 appendixs

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further specified:

Consult shown in Figure 1, jet type gas burner and ignition switch that the utility model provides, connect by appendix 90 between the two, form combustion system, ignition switch can realize igniting and regulation and control intensity of a fire size, burning gases are by the input of ignition switch place, are transferred to burner ejection burning through appendix 90.

Consult shown in Fig. 1,2, burner comprises bell 10, big jet pipe 20, little jet pipe 30 and an air radome fairing 40, wherein bell 10, big jet pipe 20 and little jet pipe 30 are axially connected, form air flue, bell 10 top centre are provided with puff prot 11, and several jet apertures 12 being arranged in puff prot 11 peripheral distribution, auxiliary jet combustion obtains multi-turn flame.Bell 10 is connected in the upper end of big jet pipe 20, and the lower end of big jet pipe 20 is communicated with little jet pipe 30, and the lower end of little jet pipe 30 is then connected with appendix 90, the appendix other end ignition switch of plugging into.The big jet pipe 20 of described air radome fairing 40 upper end sockets, 30 of little jet pipes are coated in the air radome fairing 40, radially are provided with injection hole 31 on the little jet pipe 30, and the bottom of big jet pipe 20 then axially offers injection hole 21.

Air radome fairing 40 lower ends are horn shape, and promptly its inner chamber forms taper, and lower port is bigger, is beneficial to air and incorporates in the combustion gas.Air radome fairing 40 similar chimneys, air enters from the radome fairing bottom, forms a good cross-ventilation environment, improves the velocity of liquid assets of air, avoids the generation of burner the inside tempering phenomenon.

Consult shown in Fig. 1,3, ignition switch, its valve seat 50 is provided with two air inlet A, B, one air inlet input combustion gas, another air inlet input compressed air can realize that two gas or many gas feed, and can enter the hybrid chamber 70 of valve seat front end through spool 60 regulation and control, can realize the preceding effect of mixing with air earlier of fuel gas buring like this, hybrid chamber 70 is air mixture and air fully, makes it the mixed effect that reaches desirable, and gas content is low more, its fuel value is high more, effectively saves the energy.Hybrid chamber 70 front ends are provided with outlet and connect with appendix 90; Also lead to igniting air flue 80 on valve seat, to realize igniting, this function has in existing gas furnace, gives unnecessary details no longer one by one at this.The air inflow of two air inlet A, B size is opposite on the valve seat 50, by spool 60 regulation and control, when the air inflow that promptly positive rotary plate 60 can make combustion gas is big, then the compressed air inlet of another air inlet is then little, otherwise situation is opposite, can realize the input quantity of combustion gas thus, helps energy-saving combustion.Certainly, two air inlet A, B on the above-mentioned valve seat 50 also can singlely make and be used for feeding combustion gas, and at this moment function and prior art are suitable, about sparking action consistent with prior art (be not shown with among Fig. 3 and close structure).

During use, combustion gas or gaseous mixture (being combustion gas and the air assembly that mixes through hybrid chamber 70) are transported to little jet pipe 30 through appendix 90, the air that combustion gas or gaseous mixture can drive when flowing through in little jet pipe 30 in the part air radome fairing 40 enters in the little jet pipe 30 from little jet pipe 30 injection hole 31 radially, mix with combustion gas or gaseous mixture, spray to big jet pipe 20 subsequently, equally, air in the air radome fairing 40 also can enter in the big jet pipe 20 from the axial injection hole 21 in big jet pipe bottom, mix with gaseous mixture,

puff prot

11 and 12 ejections of jet aperture from bell take fire under the incendiary source effect.The furnace head structure that the utility model provides also can mate existing ignition switch to be used, utilize the air inlet mixed structure of burner, also can reach the effect of desirable mixed combustion, cooperate even more ideally certainly with ignition switch described in the utility model, combustion efficiency is also better.

During enforcement, when combustion gas or gaseous mixture spray to little jet pipe 30 and big jet pipe 20, under the drive of jet power, air enters from corresponding injection hole, mix with gas in little jet pipe and the big jet pipe respectively, increase oxygen-supplying amount, improved the reaction speed of combustion gas and air, improved the burning velocity and the thermal efficiency of gaseous mixture simultaneously.

In the present embodiment, the linking between bell 10, big jet pipe 20, little jet pipe 30 and the air radome fairing 40 is adopted and is threaded, the easy disassembly combination, and simple in structure, volume is little, and processing and fabricating is easy, and cost is low, and practicality is good.

Claims

1, jet type gas burner and ignition switch, be connected by appendix between described burner and the ignition switch, form combustion system, it is characterized in that: burner comprises bell, big jet pipe, little jet pipe and an air radome fairing, bell, big jet pipe and little jet pipe are axially connected, form air flue, bell top centre is provided with puff prot, and several jet apertures are arranged in the puff prot peripheral distribution, bell is connected the upper end in big jet pipe, the lower end of big jet pipe is communicated with little jet pipe, and the lower end of little jet pipe is then connected with appendix, the appendix other end ignition switch of plugging into; The big jet pipe of described air radome fairing upper end socket, little jet pipe then is coated in the air radome fairing, radially is provided with injection hole on the little jet pipe, and the bottom of big jet pipe then axially offers injection hole.

2, jet type gas burner according to claim 1 and ignition switch, it is characterized in that: described ignition switch, its valve seat is provided with two air inlets, one air inlet input combustion gas, another air inlet input compressed air, can enter the hybrid chamber of valve seat front end through spool regulation and control, the hybrid chamber front end is provided with outlet and connects with appendix; On valve seat, also lead to the igniting air flue.

3, jet type gas burner according to claim 1 and ignition switch is characterized in that: air radome fairing lower end is a horn shape.

4, jet type gas burner according to claim 2 and ignition switch is characterized in that: the air inflow of two air inlets size is opposite on the valve seat, is regulated and control by spool.

5, jet type gas burner according to claim 1 and ignition switch is characterized in that: the linking between bell, big jet pipe, little jet pipe and the air radome fairing is adopted and is threaded.