CN2210342Y - liquid fuel combustion furnace - Google Patents

Abstract

A liquid fuel combustion furnace is composed of a quantitative preheating fuel discharge device, an automatic main channel opening device after accidental flameout protection and preheating, a flameout and fire power regulating device, a vaporization and ignition device and a burner, wherein the control is achieved by using a control valve, a quantitative valve and an adjusting needle valve, and the preheating chamber, a bimetallic strip and a smoke abatement cover are used for realizing the full combustion of preheating fire without black smoke. The furnace is simple to operate, convenient to use, safe and reliable, not easy to block, capable of shortening normal preheating combustion time and saving fuel. Is suitable for the stove using liquid fuel.

Description

Range for combustion of liquid fuel

The utility model relates to a kind of liquid fuel furnace or kitchen range.

At present, when the liquid fuel burner of use uses liquid fuel, need manage fuel vapor is changed into fuel gas, could well burn, could obtain good combustion efficiency.In order to make liquid fuel evaporation, generally all be to manage preheating part liquid fuel earlier to make it vaporization, light boil-off gas then, utilize the combustion flame heated liquid fuel, there is the fraction boil-off gas to light and is used to continue heated liquid fuel, make the required boil-off gas of the main flame of continuous supply that liquid fuel can be very fast.For this reason, the technical scheme of much carrying out preheating and adding preheated liquid fuel is arranged, but all have deficiency separately.Chinese patent application number 92106958.8 disclosed " self-pressure liquid fuel burner (kitchen ranges) " for example, its preheated liquid can not weight feed, and when lighting the preheated liquid of preheating dish, can produce Huang Huoji black smoke is arranged, Chinese patent application number 92106844.1 disclosed " self-pressing type liquid fuel furnace kitchen ranges ", complicated operation when it send preheated liquid, easily cause fuel to leak, after pre-showing tremendous enthusiasm lighting, can produce yellow fire and black smoke equally, fuel shutoff passage automatically when all also there is accident extinguishing in above-mentioned two kinds of liquid fuel burners leaks fuel in a large number, waste fuel, polluted the combustion furnace surrounding environment again.

The purpose of this utility model provides a kind of easy and simple to handle, fuel shutoff passage and the liquid fuel burner that do not produce yellow fire and black smoke in preheating and combustion process automatically during quantitatively for pre-heating fuel, accident extinguishing.

Task of the present utility model is achieved in that it has that compression ring is contained on the height of anger burner of burning by going out, the firepower governor motion that is made of the valve rod of spinning in regulation valve body and the igniter that is made of spray point and ignition switch, also has quantitatively discharging preheated fuel-device, vapourizing unit and accident extinguishing protection to hold concurrently and opens the main channel device automatically after the preheating.Quantitatively discharging preheated device: application valve body is connected with quantitative valve body through the preheating feed tube.Two small valve-rods and pass hole on the quantitative valve body respectively, snap ring is pressed in spring between two small valve-rods and the quantitative valve body, bearing pin is through pressing plate and is fixed in the corresponding aperture on the quantitative valve body, the pressing plate other end is enclosed within the rotating shaft, lid is pressed in film in the cannelure of valve body, spring base is tightened in the lid, and both ends of the spring withstands on respectively on spring base and the top board.Adjusting screw(rod) is spun in the spring base.The pre-hydrothermal solution pipe of spring two ends connect quantitative valve body and preheating cavity respectively.Vapourizing unit: the generating tube above preheating cavity passes across the burning duration and degree of heating, and one terminates on the regulation valve body, and the other end is connected with nozzle, and porose a of preheating cavity and induced duct communicate, and there is vaporization fire hole b a top in hole.The smoke elimination enclosure in the groove of preheating cavity, the hole c that preheating cavity inside has pre-heating fuel to pass through, and have and contain the groove d that pre-heating fuel is used, economizer bank couples together preheating cavity and nozzle.Automatically open the main channel device after the double preheating of accident extinguishing protection: small valve-rod passes the hole on the application valve body; snap ring is pressed in spring between small valve-rod and the application valve body; the feed tube two ends connect application valve body and regulation valve body respectively; application valve body is fixed on the holder; holder is fastened on below the burning duration and degree of heating; the bimetal leaf retainer is fixed on the holder; the bimetal leaf card is placed in the bimetal leaf retainer; push rod is through in the hole of fixed mount; one end withstands on the small valve-rod, and the other end withstands on the bimetal leaf.Bimetal leaf is formed by the metal pressing of the two-layer different coefficients of expansion.On the cover body of smoke elimination cover aperture is arranged.

Very simple, safe and reliable, difficult time, the fuel saving that stops up, shortens normal preheated burning of this liquid fuel burner operation, it can realize that pre-heating fuel quantitatively emits, the automatic fuel shutoff passage of energy during accident extinguishing, particularly combustion furnace does not produce yellow fire and over-emitting black exhaust in use in preheating and combustion process, and the fuel combustion state is good.Be suitable for using the cooking stove of liquid fuel to use.

The vertical view of this liquid fuel burner of Fig. 1

The front view of this liquid fuel burner of Fig. 2

Fig. 3 is the B-B cutaway view of Fig. 1

Fig. 4 is the A-A cutaway view of Fig. 2

Fig. 5 is the front view of film

Fig. 6 is the vertical view of film

Fig. 7 is the front view of preheating cavity

Fig. 8 is the vertical view of preheating cavity

Fig. 9 is the right view of preheating cavity

Figure 10 is the A-A cutaway view of preheating cavity

Below in conjunction with accompanying drawing the utility model is described in further detail.Quantitatively discharging preheated fuel-device: preheating is connected on the application valve body 16 by union nut 17 and pipe joint 9 and sealing ring 10 with an end of feed tube 18, and the other end is connected on the quantitative valve body 29 equally, and O RunddichtringO 30 is through on the small valve-rod 31.Small valve-rod 31 passes the hole on the quantitative valve body 29, and snap ring 34 is pressed in spring 33 between small valve-rod 31 and the quantitative valve body 29, and spring 33 is pushed down O RunddichtringO 32, and screw 36 is fixed on support 39 on the quantitative valve body 29.Screw 40 links together support 39 and fixed mount 43, and bearing pin 37 is through in pressing plate 35 and the support 39 corresponding holes, and pressing plate 35 can rotate around bearing pin 37.The other end of pressing plate 35 is enclosed within the rotating shaft 44.Lid 23 is pressed in film 25 in the cannelure of quantitative valve body 29.Housing screw 28 passes the centre bore of film 25 and top board 26, and nut is spun on the housing screw 28, and film 25 is clamped.Spring base 22 is tightened on and covers in 23, and spring 24 two ends withstand on respectively on spring base 22 and the top board 26, and adjusting screw(rod) 20 is spun in the spring base 22, and locks with locking nut 21.Small valve-rod 38 and small valve-rod 31 are contained in the same manner in another hole of quantitative valve body, pre-hydrothermal solution pipe 66 two ends by union nut 63,72 and pipe joint 64,73 and sealing ring 65 quantitatively valve bodies 29 and preheating cavity 56 couple together.

Automatically open the main channel device after the double preheating of accident extinguishing protection: O RunddichtringO 12 is through on the small valve-rod 11; small valve-rod 11 passes the hole on the application valve body 16; snap ring 15 is pressed in spring 14 between small valve-rod 11 and the valve body 16; spring 14 is pushed down O RunddichtringO 13, and feed tube 19 two ends are connected application valve body 16 come in regulation valve body 53 with pipe joint 9 by union nut 17.Screw 75 is fixed on application valve body 16 on the holder 2, and screw 5 is fastened on holder 2 below the burning duration and degree of heating 59.Screw 4 is fixed on the bimetal leaf retainer on the holder 2.Bimetal leaf 3 is stuck in two bimetal leaf retainers 1.Adjusting nut 6 and clamp nut 7 are spun on the push rod 8, and push rod 8 is through in the hole of fixed mount 2, and an end withstands on the small valve-rod 11, and the other end withstands on the bimetal leaf 3.Bimetal leaf 3 is near the cover 57 that eliminates smoke.

Stop working and fire power regulator: valve rod 48 is spun in the regulation valve body 53, and sealing ring 52 is pressed between regulation valve body 53 and the valve rod 48, and sleeve 49 is spun in the regulation valve body 53, compresses sealing ring 52 by pressure ring 51.One end of regulation valve body 53 is fixed on fixed mount 43 with screw 50, and generating tube 54 is spun on the other end.Screw 47 is fixed on valve rod 48 in the rotating shaft 44.

Vaporization and igniter: generating tube 54 passes across burning duration and degree of heating 59, and terminates on the application valve body 53, and the other end is equipped with nozzle 76.The below of generating tube 54 is preheating cavities 56, and screw 60 is fixed on the end face of induced duct 61 to preheating cavity 56, and wherein porose a and induced duct 61 communicate, the hole a other end is a blind hole, the top of hole a has vaporization fire hole b, and the cover 57 that eliminates smoke is enclosed within the groove of preheating cavity 56, and this groove of present embodiment is a kidney slot.The aperture c that has pilot fuel to pass through in the preheating cavity 56, and the groove d that has the Sheng pre-heating fuel to use.Nozzle 69 passes preheating cavity 56 and the cover 57 that eliminates smoke, and has a plurality of apertures on the cover body of the cover that eliminates smoke.Economizer bank 67 couples together preheating cavity 56 and nozzle 69 through liquid inlet joint 55.The front end of spray point 58 passes the cover 57 that eliminates smoke, by pressing plate 74 its be fixed on preheating cavity 56 above, ignition switch 46 is contained on the fixed mount 43.

The burner part: induced duct 61 by screw 62 be fixed on burning duration and degree of heating 59 below, sealing gasket 71 pad goes out the top that compression ring 70 is contained in burning duration and degree of heating 59 between them.

Operation principle when this combustion furnace uses: (1) discharging preheated fuel of using.Fuel is entered by pipe joint 9, be pulled outwardly knob 41 with hand earlier and drive rotating shaft 44, this moment, pressing plate 35 was under the effect of spring 45, pressing plate 35 rotates around bearing pin 37, small valve-rod 31 is depressed, O RunddichtringO 30 on it and valve body 29 form slit e, and small valve-rod 38 is not depressed, fuel just can enter the left side of film 25 through preheating with feed tube 18 and slit e, the resistance that pressure in the fuel makes film 25 overcome spring 24 together with push pedal 26 moves right and withstands the end face of adjusting screw(rod) 20 up to push pedal 26, so fuel is limited the quantity of and entered like this, regulate the amount that adjusting screw(rod) 20 enters with regard to the energy fuel metering.Push-turn key 41 then, push rod 42 is depressed pressing plate 35, pressing plate 35 rotates around pin bearing pin 33, small valve-rod 31 is closed feed pathway under the effect of spring 33, and small valve-rod 38 is depressed, apocenosis passage is opened, enter the fuel on film 25 left sides, because being pressed in, spring 24 make fuel produce pressure in the push pedal 26, O RunddichtringO 32 and the quantitative valve body 29 formed slits of fuel on small valve-rod 38, pre-hydrothermal solution pipe 66, aperture c in the preheating cavity 56, pre-hydrothermal solution pipe 67 is again in the groove d in nozzle 69 sprays into preheating cavity 56, push rod 42 is connected ignitor switch 46 simultaneously, spray point 58 sparking in the cover 57 that eliminates smoke, fuel is lighted, and pre-heating fuel is quantitatively discharged like this.(2) liquid fuel enters the generating tube vaporization.After pre-heating fuel is lighted, under the effect of the cover 57 that eliminates smoke, the pre-showing tremendous enthusiasm yellow fire and the black smoke that can not occur often having, this moment is pre-showing tremendous enthusiasm to generating tube 54 heating, offset simultaneously other bimetal leafs 3 heating of petticoat pipe 57 again after generating tube 54 and bimetal leaf 3 reach uniform temperature, bimetal leaf 3 is owing to be that metal pressing with the two-layer different coefficients of expansion forms, after it is heated, because of double layer of metal coefficient of expansion difference, it can make push rod 8 actions to the little one side bending of the coefficient of expansion, depress small valve-rod 11, make O RunddichtringO 12 and valve body 9 on it form the slit, fuel entered regulation valve body 53(before preheating through this slit and feed tube 19, after handle 41 will turn an angle earlier, valve rod 48 is return, the needle-valve of regulation valve body 53 is opened), enter generating tube 54 through metering pin valve then, the generating tube 54 that fuel runs into heating is vaporized very soon.(3) main fire is lighted.The fuel of vaporization enters induced duct 61 through main burner 76 ejections, part fuel enters a hole in the preheating cavity 56, steam discharge fire hole b from a hole discharges and burning, to keep the continuation vaporization and bimetal leaf 3 heated, another part fuel enters burning duration and degree of heating 59, discharge through going out compression ring 70, be preheated fiery ignition combustion, the firepower size is advanced and retreat by the needle point of valve rod 48 and is regulated.(4) refire after flame-out in short-term.The described process in (1) (2) (3) before repeating is characterized in that preheating cavity 56 was heated before igniting.Be vaporized behind the hole c of fuel in preheating cavity 56, the fuel after the vaporization is through nozzle 69 ejections.The aperture f of primary air from the nozzle 69 is to introducing, and ignited fuel is more reliable, and firepower is bigger, as the also not cooling of two subordinate sheets 3, working connection does not disconnect, and this fire only plays ignition action, cooled off as bimetal leaf 3, working connection disconnects, and this fire adds thrermostatic bimetal-plate and generating tube is faster.(5) accident extinguishing protection.Extinguished by accident as fire; bimetal leaf 3 coolings are restored and are become straight; make push rod 8 actions; loosen small valve-rod 11; O RunddichtringO 12 and valve body 9 original slits on it are eliminated, cut off working connection, can not cause a large amount of leakages of fuel; thereby play the effect of safeguard protection, (6) vapourizing unit is difficult for blocked.Generating tube 54 is the straight tube of big caliber, and the vaporization fire is far away apart from generating tube 54, and vapourizing temperature is not high, so be difficult for blocked.

Claims (3)

1, a kind of liquid fuel burner; it has that compression ring is contained on the height of anger burner of burning by going out, the firepower governor motion that is made of the valve rod of spinning in regulation valve body and the igniter that is made of spray point and ignition switch, it is characterized in that also having quantitatively discharging preheated fuel-device, vapourizing unit and accident extinguishing protection to hold concurrently and opens the main channel device after the preheating automatically:

Quantitatively discharging preheated fuel-device: application valve body [16] quantitatively is connected with valve body [29] together through preheating feed tube [18], small valve-rod [31] and [38] are passed the hole on the quantitative valve body [29] respectively, snap ring [34] is pressed in small valve-rod [31] to spring [33], [38] and quantitatively between the valve body [29], bearing pin [37] is through pressing plate [35] and is fixed in the corresponding aperture of the support [39] on the quantitative valve body [29], pressing plate [35] other end is enclosed within the rotating shaft [44], lid [23] is pressed in film [25] in the cannelure of valve body [29], spring base [22] is tightened in the lid [23], spring [24] two ends withstand on respectively on spring base [22] and the top board [26], adjusting screw(rod) [20] is spun in the spring base [22], and pre-hydrothermal solution pipe [66] two ends connect quantitative valve body [29] and preheating cavity [56] respectively;

Vapourizing unit: the generating tube [54] in preheating cavity [56] top passes across burning duration and degree of heating [59], one terminates on the regulation valve body [53], the other end is connected with nozzle [76], porose a of preheating cavity [56] and induced duct [61] communicate, there is vaporization fire hole b a top in hole, and the cover [57] that eliminates smoke is enclosed within the groove of preheating cavity [56] the hole c that preheating cavity [56] inside has pre-heating fuel to pass through, and the groove d that has the Sheng pre-heating fuel to use, economizer bank [67] couples together preheating cavity [56] and nozzle [69]; Automatically open the main channel device after the double preheating of accident extinguishing protection: small valve-rod [11] passes the hole on the application valve body [16]; snap ring [15] is pressed in spring [14] between small valve-rod [11] and the application valve body [16]; feed tube [19] two ends connect application valve body [16] and regulation valve body [53] respectively; application valve body is fixed on the holder [2]; holder [2] is fastened on below the burning duration and degree of heating [59]; bimetal leaf retainer [1] is fixed on the holder [2]; bimetal leaf [3] card is placed on bimetal leaf retainer [1] and is fixed on the holder [2]; bimetal leaf [3] card is placed in the bimetal leaf retainer [1]; push rod [8] is through in the hole of fixed mount [2]; one end withstands on the small valve-rod [11], and the other end withstands on the bimetal leaf [3].

2,, it is characterized in that bimetal leaf is formed by the metal pressing of the two-layer different coefficients of expansion according to the described liquid fuel burner of claim 1.

3, according to the described liquid fuel burner of claim 1, there is aperture on its feature ground on the cover body of the cover ［ 57 ］ that eliminates smoke.

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