CN2467931Y - Big fire gas stove - Google Patents

Abstract

The utility model relates to a big-fire gas stove which is provided with a novel straight-jetting high-efficiency burner and an improved infrared burner, wherein an adjustable nozzle driven by magnetic force is arranged below a fire jetting port of the straight-jetting burner and is controlled by a differential lever. The utility model is also provided with a force-controlled gas saving valve which is used for opening gas when a pot is dropped, and closing the gas when the pot is lifted. A push rod of the force-controlled valve is fixedly connected with an electric contact for preventing the overflow of the pot. The utility model can be additionally provided with a spiral pot frame, a safety valve, a microelectronic flameout protecting circuit, an automatic igniting circuit and a timing circuit so as to be changed to a big-fire and high-efficiency safe stove with electromechanical integration.

Description

Big fire gas stove

The utility model provides a kind of big fire gas stove.Be applicable to the culinary art of family, restaurant and food stalls, especially big fire cooking.Can use various combustion gas.Current, the gas furnace technology has certain progress, but often improves more to outward appearance.Blowout protection is still based on thermojunction type.So safe, energy-conservation, raising practicality is still a problem that requires further improvement.

The purpose of this utility model provides that a kind of firepower is violent and concentrated, energy-conservation, the stove and accessory of safety, fool's operation.

The purpose of this utility model is achieved through the following technical solutions: the straight spray burner with high efficiency of big fire gas stove is made up of main ignition combustor and small fire burner two parts.The promptly main fire-fighting mouth of the nozzle of its main burner, be similar to a kind of needle-valve: a soft magnetic bodies tap web is housed in the blast tube, change their mutual alignment, the area of tap web stopped nozzles pipe just changes, just change the effective area of blast tube outlet, thereby can in whole firepower scope, regulate the firepower size.A high magnetic force permanent magnet is being overlapped in the blast tube outside.Form magnetic drives between tap web and the magnet, promptly tap web is followed magnet and is moved and move.The advantage of magnetic drives is not have gas leakage during transmission extremely.Permanent magnet and blast tube are stirred by a driving lever and since driving lever stir the radius difference, and form differential.Be that permanent magnet is than the how mobile Δ L of blast tube.Here, Δ L is used for regulating firepower, and total amount of movement L is used for changing the air inducing amount, makes it synchronous with firepower.Permanent magnet is just at the end of combustion gas ejection, thus after combustion gas is subjected to magnetization, not loss by the road, ejection more helps abundant burning immediately.Main fire-fighting mouth places main fire-fighting mouth the place ahead, and the distance of distance is decided by the size test of firepower.This main fire-fighting mouth is when being adjusted to little firepower, and is less to the gaseous-pressure loss, even the pressure in little when fire is also high during on the contrary than big fire.Like this, can overcome the drawback of turning fire with steam supply valve down.Be this method when little fire, fuel gas injection kinetic energy is bigger, and is stronger to the injection power of air, thereby can guarantee abundant burning.This is an important feature.In addition, this novel main ignition combustor does not need Venturi tube and mixing tube, and like this, combustion gas is the kinetic energy loss minimum in the direct injection process, be that injection power is the strongest, still have enough injection power so that under low gas pressure power, (be low to moderate 0.002Mpa) as the liquefied petroleum atmospheric pressure.This is second characteristic.These two characteristics all are not lose the kinetic energy of gas-flow as far as possible, have guaranteed that the direct spray type gas burner also has good combustibility under low gaseous-pressure, and flame is bluish violet in whole firepower scope, even full purple.

Small fire burner is an air suspended type, but crater is the closed loop clearance type.And its burner inner chamber is exactly main crater.Combustion gas directly is sprayed onto outside the main fiery crater, is lighted by small fire burner.Because the crater of small fire burner is the circumferential weld of sealing, like this, little fire must be the ring-shaped continuous fire, thereby it surrounds main fire fully, is lighted and does not fly away from fully so can guarantee main fire.The ring-shaped continuous fire has very high electricity leads, so can guarantee high sensitivity that flame ion surveys, guarantee the pulse sparking and the reliability of resume combustion automatically.

Flame ion probe and igniting needle are housed on the small fire burner.They are fixed under the umbrella crown of insulation, and waterproof anti-soil guarantees insulating properties.

Also install an above-mentioned small fire burner (above-mentioned advantage is also arranged) with garden seam crater additional in the central authorities of infrared burner, the little fire in center of Here it is infrared burner simultaneously, has overcome the shortcoming of infrared stove vibration of flame when little fire.

Be further solar term, power control air throttle can be set.When falling pot, its gravity is this opening of valves, and combustion gas is lighted automatically.When playing pot, spring jack-up cushion rubber is held one's breath by the suction of permanent magnet again.Seal better after using magnet, and big pannikin all is suitable for.

Install special-purpose microelectronics logic and control circuit and safety valve additional, just can form a kind of vigorous fire high efficiency burnt gas stove of electromechanical integration.

Result of use of the present utility model: saved the flame that add-on components such as air blast just can obtain the blowing type gas burner.Firepower is fierce, is the boundling shape, and its flame is bluish violet, sufficient combustion, and the gas nuisance reduces, CO content about 0.02%.Be used for food stalls and restaurant and make the big fire kitchen range, effect is fine.The result that burner combines with microelectronic circuit makes it to have the characteristics of electromechanical integration: igniting automatically, flame-out automatic resume combustion and multiple protection fast and safely.Its automation can guarantee that the fool operates.

The utility model is described in further detail with an example below:

Fig. 1 is a big fire gas stove system layout schematic diagram

Fig. 2 is the side view and the nozzle transmission schematic diagram of straight spray burner with high efficiency

Fig. 3 is the top view of straight spray burner with high efficiency

Fig. 4 is the infrared burner side view

Fig. 5 is a power control valve arrangement schematic diagram

Fig. 6 figure is the big fire gas stove system block diagram

Fig. 7 is a big fire gas stove system electrical schematic diagram

Among the figure:

1 main fiery crater 2 igniting needles

3 umbrella crowns, 4 permanent magnets

5 tap webs, 6 fuel gas inlet

7 rings, 8 jet pipe mouths

9 straight spray small furnace head 10 flame ion probes

The little fiery crater 12 of 11 straight sprays is air valve altogether

13 safety valves, 14 little fire-fighting mouths

15 main fire-fighting mouth 16 levers

17 fulcrums, 18 infrared small furnace heads

27 infra-red china plates, 28 infrared little fiery craters

Below be the numbering in the power control air throttle sketch:

19 excessive pot electrode 20 housings

21 diaphragm seals, 22 push rods

23 cushion rubbers, 24 moving iron

25 permanent magnetism sheets, 26 springs

The overall formation of big fire gas stove is seen Fig. 1.It has been equipped with two burners, and one is directly to spray sthenic fire combustor B, and another is infrared burner C.The former main fire is little fire (this is an important characteristic) outside in the lining, and the latter's little fire at lining master's fire outside.Infrared burner fires evenly, is suitable for pancake.And flame burner flame concentrate be suitable for heating up water, cooking.Two match, rationally.Should point out that current, these two kinds of burners are most effective.Each burner all is equipped with flame ion probe 10, igniting needle 2, steam supply valve 12 and the pot electrode 19 that overflows.Only straight spray burner B has added power control valve A among the figure.Safety valve 13 is contained in after the fuel gas inlet.The gas circuit of system is as shown in FIG.: source of the gas is supplied with by import 6, through steam supply valve 12 separately, enters the little fire-fighting mouth 14 and the main fire-fighting mouth 15 of straight spray burner respectively, and the little fire-fighting mouth 14 of infrared burner and main fire-fighting mouth 15.K2 and steam supply valve interlock, when the beginning air feed, K2 disconnects.Introduce various piece below respectively.

As seen from Figure 2, the sliding diamagnetic body blast tube that is contained in thin-walled of soft magnetic bodies tap web 5 is 8 li.4 of neodymium-iron-boron permanent magnets slide over outside the blast tube.Two rings 7 are connected with permanent magnet and jet pipe mouth respectively, pull lever 16, and are reverse by fulcrum 17, stir jet pipe mouth 8 and permanent magnet 4 moves up and down by the other end of lever 16.Since magnetic drives, the same moved further of tap web and permanent magnet.When moving on the tap web, its conical surface will block the outlet of blast tube gradually, then can finish the descending FR adjusting of firepower.

Amount of movement is definite by following formula, as seen from Figure 1:

The amount of movement of jet pipe mouth 8 is 1=r * tga

The amount of movement of tap web 4 is L=R * tga

Differential values is Δ L=(R-r) tga

Main fiery crater 1 is positioned at the relevant with combusting firepower apart from S of blast tube upper surface, and S is about 30 millimeters when jet pipe mouth aperture is φ 0.8.In addition, gas-flow is the high-intensity magnetic field air gap of flowing through, and immediately from the nozzle ejection, so the magnetization of combustion gas is effective.

As seen from the figure, the inner chamber that to lead fiery crater 1 be exactly small fire burner 9.The protection umbrella crown 3 of pottery is being fixed in the small fire burner below.Flame ion probe 10 and igniting needle 2 are separately fixed on the umbrella crown.Umbrella crown can block the water dirt, guarantees to have high insulation and operate as normal.Combustion gas is entered by air inlet 6.

Little fiery crater 11 as shown in Figure 3, it is a closed circle, gap width δ=0.7-2 millimeter (relevant with the duration and degree of heating structure with the combustion gas kind).Two ring 7 pines are enclosed within on the lever 16.Permanent magnet 4 is fixed on jet pipe mouth 8 both sides.

Infrared burner is seen Fig. 4.There is not the little fire in center as infra-red furnace is first.Flame is just beated when the little fire of furnishing like this, becomes partly to extinguish state.As figure, at small fire burner 18 of infra-red china plate 27 central means.Its crater also is the color clearance type of ring.Gap width δ is also 0.7-2 millimeter (relevant with the duration and degree of heating structure with the combustion gas kind).Equally also install ion probe 10 and igniting needle 2.This small fire burner is identical with the work characteristics of the small fire burner of straight spray burner.

Among Fig. 5, power control valve housing is equipped with push rod 22 for 20 li, is sealed by diaphragm seal 21 when it is movable.Excessive pot electrode 19 is being overlapped in the push rod upper end.When the water dirt reduced the electric resistance in circuit of the pot electrode that overflows, system can hold one's breath immediately by safety valve 13.The heavy G of pot depresses push rod, can back down the permanent magnetism sheet 25 and the cushion rubber 23 of its below, thereby opens gas circuit.When depressing the permanent magnetism sheet, its suction descends suddenly, so just can be held open state with pannikin.When lifting pot, spring 26 upwards pushes earlier moving iron 24, and then the permanent magnetism sheet upwards sucks tightly, and it is good to hold one's breath.Moving iron 24 is used for increasing suction.

By system block diagram 6 as seen, the control of system is core with special-purpose Microelectronic Logic Circuits MLC.Its input quantity has: the flame ion signal of two burners, an excessive pot resistance signal.These input quantities handle through MLC and the logic judgement after export to system with the lower part: when accident extinguishing occurring, provide high voltage pulse to igniting needle, finish automatic resume combustion through firing circuit.If not resume combustion in 3 seconds just stops sparking and drives safety valve holding one's breath, simultaneously sound and light alarm.When overflowing pot, drive circuit is the closed safe valve immediately.Here, adopt digital coding regularly to hold one's breath.Shi Jiwei volume RC oscillator.MLC has spare interface BY extendable functions such as added overtemperature NRT protection.Above safeguard protection is an Electronic Control, and therefore response fast.

The basic circuit diagram of system is seen Fig. 7: MLC is special-purpose Microelectronic Logic Circuits among the figure, and flame ion probe 10 is heat-resistant alloy wires.The pot electrode 19 that overflows is conductive caps.B is 3 volts of dry cells.K1 is a power switch.K2 is and the switch of steam supply valve interlock, during disconnection, just allows sparking.Q2 is the driving tube of magnetic valve V, and its base stage is held one's breath by 50 milliseconds of pulse controls of holding one's breath that MLC sends.Q1 is the driving tube of newspaper ring loudspeaker S, and MLC sends the 1000HZ alarm signal.During warning, the back-emf of horn coil is supplied with the LED luminous tube, makes it luminous.The sparking signal is through Q3 base stage control vibration.R ₃Be current-limiting resistance.By transformer T ₁Boost, by diode D rectification, to storage capacitor C ₂Charging.Commutating voltage is also through R ₄To capacitor C ₁Charging.And then triggering controllable silicon SR conducting, C ₂Discharge, transformer T ₂Secondary coil just produce a high electric field pulse.Igniting needle 2 just sends a sparking pulse to small fire burner.The frequency of sparking pulse is by R ₄, C ₁The time constant decision that constitutes.Spare interface BY can expand use.Can increase tempering protection, overtemperature prote, earthquake protection etc. in case of necessity.Timing circuit is a technique known, so no longer explanation.

This gas furnace adopts patent spiral pot frame 96118%7, and the solar term effect is arranged.Adopt patent safety valve 99234573.The external structure of this gas furnace and the matched combined of each parts can determine by market demand, also can adopt the current popular style.

Claims (7)

1, a kind of big fire gas stove, comprise burner, steam supply valve, pot frame etc., it is characterized in that, its duration and degree of heating is a direct spray type gas burner, and its nozzle is similar to needle-valve, and the differential attachment of magnetic drives is arranged, another is the infrared burner of the little fire in band center, power control air throttle is housed in supply air line and flame ion probe and sparking electrode are being housed on the height of anger.

2, big fire gas stove according to claim 1, it is characterized in that, direct spray type gas burner is provided with an air suspended type small fire burner (9) and main fire-fighting mouth (1) in the place ahead of main fire-fighting mouth, and the inner chamber of little duration and degree of heating is exactly main fire-fighting mouth, the crater (11) of small fire burner (9) is the annular slot of sealing, and its flame is continuous annular.

3, big fire gas stove according to claim 1 is characterized in that, its direct spray type gas burner master fire-fighting mouth is similar to a kind of needle-valve, the sliding soft magnetic bodies tap web (5) of adorning in blast tube (8) the inside, the sliding permanent magnet (4) of adorning in outside, tap web (5) is subjected to magneticaction along with permanent magnet (4) is done magnetic drives, regulates firepower.

4, big fire gas stove according to claim 1 is characterized in that flame ion probe (10) and igniting needle (2) are fixing by umbrella crown (3) and auxilliary ignition combustor (9).

5, big fire gas stove according to claim 1 is characterized in that the center of its infrared duration and degree of heating installs the annular slot that its crater of small fire burner (18) (28) also is sealing additional, and its flame is continuous annular.

6, big fire gas stove according to claim 1 is characterized in that, adorns a permanent magnetism sheet (24) and moving iron (25) below the push rod (22) of its power control air throttle.

7, big fire gas stove according to claim 1 is characterized in that, its configurable special-purpose Microelectronic Logic Circuits MLC, safety valve, firing circuit, sound light alarming circuit, digital display circuit, a pot electrode overflows.

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