CN2293753Y

CN2293753Y - Light hydrocarbon liquid fuel combustion apparatus for Chinese meal stove

Info

Publication number: CN2293753Y
Application number: CN 97220495
Authority: CN
Inventors: 廉守礼
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-14
Filing date: 1997-07-14
Publication date: 1998-10-07
Anticipated expiration: 2007-07-14

Abstract

The utility model relates to a light hydrocarbon liquid fuel combustion apparatus for Chinese meal stoves. The utility model is characterized in that light hydrocarbon liquid fuels in a liquid storing steel cylinder and fresh air sent out from a blower are respectively sent into a special combustor which is provided with an air distributing chamber, a vaporizing chamber and a combustion chamber, and the fresh air is fully and stably combusted after the fresh air is treated through a heat conduction process, a vaporizing process, a rotational flow process and an air distributing process. The utility model has the practical significance that the utility model provides a practical apparatus for Chinese meal stoves, tea-bath stoves and small industrial stoves even, and the practical apparatus uses liquid light hydrocarbon as fuels and realizes full and stable combustion. When the utility model is used, diesel oil can be replaced, and the consumption cost of fuels can be reduced.

Description

Chinese meal stove light hydrocarbon liquid fuel firing unit

The utility model relates to a kind of Chinese meal stove that is used for, and can make that light hydrocarbon liquid fuel fully gasifies, the device of smooth combustion.

In the enterprises and institutions of big and medium-sized cities, hotel, machine-operated universities and colleges, thousands of Chinese meal stoves are arranged.In the culinary art of Chinese meal, owing to need the firepower of big heat load, high-heat strength, the major part of these cooking stoves still acts as a fuel with diesel oil at present.Therefore, the consumption of diesel oil is very big, has formed the situation of striving diesel oil with automotive industry, traditional agriculture.

The lighter hydrocarbons fluid fuel is the novel clean energy resource of developing in recent years, and it is to defend alkane, to comprise the fuel combination of multiple lighter hydrocarbons composition.Owing to low the causing widely of the high pollution-free price of its calorific value paid close attention to.But, because light hydrocarbon liquid fuel all is very different with diesel oil, use existing diesel oil burner burning light hydrocarbon liquid fuel on the multinomial physicochemical characteristics relevant with burning such as boiling point, flash-point, density, explosion limit, owing to detonation can take place and splash, thereby by absolute prohibition.Can be fuel with the liquid lighter hydrocarbons, be used for Chinese meal stove, have not yet to see report to substitute the firing unit of diesel oil.

The purpose of this utility model is can make for Chinese meal stove and even tea-bath furnace, back yard industry kiln provide a cover that light hydrocarbon liquid fuel fully gasifies, the device of smooth combustion.

The purpose of this utility model is achieved in that the top of airtight liquid storage steel cylinder 1 is equipped with barometer 2, air delivery valve 3, feeding valve 4, one end of air delivery valve 3 communicates with liquid storage steel cylinder 1, the other end connects airtight by snorkel 5 and air compressor 6, one termination of feeding valve 4 has feeding pipe 7 and stretches into the bottom of liquid storage steel cylinder 1, and the other end is transferred for the give oil nozzle 22 of valve 10 with burner 14 by indusion tube 8, oil purifier 9, oil mass and connected airtight; Blower 11 joins with the air port 21 of burner 14 by ajutage 12, air door 13.

Burner 14 is by inwall 15, jacket wall 16, burner plate 18, gasification board 19, heat conducting bar 20, air port 21, the member of comprehensively forming for oil nozzle 22, oil transportation arm 23, oil nozzle 24.The profile of inwall 15 be top to abduction along, below the opening garden tube of the end, wall thickness 8mm is arranged, the profile of jacket wall 16 is opening garden tubes that the end is arranged below the top opening, inwall 15 and jacket wall 16 concentric suits surround distribution plenum 17 jointly, have formed the main body of burner 14 thus.At the bottom surface of jacket wall 16 middle position, air port 21 is housed, be equipped with to oil nozzle 22 near basal surface position cylndrical surface at jacket wall 16, at the close basal surface position in the cylndrical surface of inwall 15, symmetry is equipped with two oil nozzles 24, and connect airtight with giving oil nozzle 22 by oil transportation arm 23, intermediate portion in the cylndrical surface of inwall 15, burner plate 18 and gasification board 19 are housed, leave the gap between two plates, by burner plate 18 inner space that inwall 15 is surrounded is separated into two-part, top is the firing chamber 26 of opening, the bottom is a gasification room 25, also the cylndrical surface with inwall 15 is divided into two-part up and down equably, on this two-part cylndrical surface, three row's inclined holes 27 are respectively arranged respectively on from descending, 8 holes of every row and be level by the cylinder circumference and evenly distribute, between the center line of each inclined hole 27 and cylndrical surface, the place normal 10 ° to 30 ° the angle of cut is arranged, thereby formation inclined hole, by inclined hole 27, gasification room 25 is communicated with distribution plenum 17, firing chamber 26 is communicated with distribution plenum 17, in the bottom center position of inwall 15 a garden cylindricality heat conducting bar 20 is arranged, heat conducting bar 20 passes gasification board 19, burner plate 18 stretches into the top of firing chamber 26.Burner plate 18 is with what refractory material was made certain thickness disk (market is on sale) to be arranged, and is covered with fine fire hole on the card, and gasification board 19 is garden shape sheetmetals, the hole, garden of gathering, surface.

Different with diesel oil burner, at the intrinsic combustion characteristic of light hydrocarbon liquid fuel, this device has adopted pressurization atomizing oil supply, two kinds of physical methods of heat conduction high-temperature gasification, can impel a large amount of gasifications fast of light hydrocarbon liquid fuel, guaranteed cooking stove to big heat load, high-heat strength with the gas needs; This device has adopted the technological scheme that gasification room and firing chamber separate, heat conducting bar conducts heating to gasification room, both satisfied because of the needs of a large amount of gasifications of fuel latent heat, prevented existing firing unit again because gasification room and firing chamber unification, make the detonation that light-hydrocarbon fuel very easily takes place because of the high temperature action that directly is subjected to red-hot flame and splash, guarantee that flameholding is easy to control; This device has adopted the gasification room firing chamber secondary technical measures of eddy flow air distribution respectively, and the air of capacity can be provided, and makes combustion gas and air mixing even, guarantees sufficient combustion.

The outstanding Practical significance of the utility model is: it can be fuel with the liquid light hydrocarbon for Chinese meal stove and even tea-bath furnace, back yard industry kiln provide a cover, and realize not only fully but also the brand-new utility unit of smooth combustion, this is not only for substituting diesel oil, condition has been created in the variation of the realization energy, and compares with diesel oil, because the light hydrocarbon liquid fuel sufficient combustion, consumption is few, price is low, can reduce fuel cost greatly in practicality, can bring remarkable economic efficiency thus.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1, be overall formation schematic representation of the present utility model

Fig. 2, be the utility model burner structure schematic representation

Fig. 3, be the inwall cylndrical surface inclined hole sectional view of the utility model burner

Wherein: 1 liquid storage steel cylinder, 2 barometers, 3 air delivery valves

4 feeding valves, 5 snorkels, 6 air compressors

7 feeding pipes, 8 indusion tubes, 9 oil purifiers

10 oil masses are transferred for valve 11 blowers 12 ajutages

13 air doors, 14 burners, 15 inwalls

16 jacket walls, 17 distribution plenums, 18 burner plates

19 gasification boards, 20 heat conducting bars, 21 air ports

22 give oil nozzle 23 oil transportation arms 24 oil nozzles

25 gasification rooms, 26 firing chambers, 27 inclined holes

In Fig. 1, within liquid storage steel cylinder 1, inject light hydrocarbon liquid fuel earlier, start air compressor 6; the top pressurization that pressurized air enters liquid storage steel cylinder 1 through snorkel 5, air delivery valve 3, barometer 2 shows force value, after reaching the middle pressure that needs in the liquid storage steel cylinder 1; air compressor is shut down, and preparatory work is finished.During system works, at first start blower 11, fresh air is admitted to the air port 21 of burner 14 through ajutage 12, air door 13.Open liquor charging valve 4, under the effect of middle pressure air, the liquid fuel in the liquid storage steel cylinder 1 is given oil nozzle 22 through what feeding pipe 7, feeding valve 4, indusion tube 8, oil purifier 9, director valve 10 were admitted to burner 14.

In Fig. 2, by the fresh air that blower 11 is sent here, 21 enter distribution plenum 17 through the air port, and enter gasification room 25 and firing chamber 26 respectively through inclined hole 27, because the effect of inclined hole 27 makes the air that enters gasification room 25 and firing chamber 26, presents strong swirling motion state; Meanwhile, be transported to the liquid fuel that has pressurizeed to oil nozzle 22, through oil transportation arm 23, oil nozzle 24 sprays in the gasification room 25, and is tentatively atomized; Because the upper end of heat conducting bar 20 is 26 center in the firing chamber, by red-hot flame high temperature heating, the other end closely links to each other with the bottom surface of gasification room 25, under heat conducting effect, the high temperature that can make whole gasification room 25 be in 200 ℃ to 250 ℃, so liquid fuel that has atomized in the gasification room 25, gasification and mixes (the air distribution first time) with rotational flow air fast and in a large number, rapidly by the hole, garden of gasification board 19 and the fine fire hole of burner plate 18 cards, enter firing chamber 26, and lighted in the outlet port of the fine fire hole of burner plate 18 cards.In combustion process after this, again mix (the air distribution second time), realized abundant stable burning thus with rotational flow air firing chamber 26 in.The effect of gasification board 19 is that it can increase the area of contact of gas-liquid two-phase in the gasification room, thereby quickens fuel gasification, and the pulverized fuel that can prevent from again not gasify simultaneously directly enters the firing chamber and causes partial combustion under the blowing of eddy flow wind.

Regulate quantity control valve 10, can control, can control the firepower size thus to oil mass; Damper 13 can be controlled the air distribution amount, can control combustion condition thus; Both coordinate to use, and can make burning be in ideal burning state under the Bai Yan.

The practical work process of this device must and be given heat through igniting.Igniting is the necessary condition that realizes burning, gives heat energy and gasification room is set up be the big heat load of keeping cooking stove, the required gasification temperature of high thermal intensity of fire port.Use igniting of this device and preheating all very convenient.During igniting, suitably reduce to oil mass and air distribution amount, the usefulness burning torch once sparking, can be lighted in the firing chamber, and after half a minute, preheating is finished, and enters normal combustion.

Claims

1. light hydrocarbon liquid fuel firing unit that is used for Chinese meal stove, it is characterized in that: barometer 2, air delivery valve 3, feeding valve 4 are equipped with in the top of airtight liquid storage steel cylinder 1, one end of air delivery valve 3 communicates with liquid storage steel cylinder 1, the other end connects airtight by snorkel 5 and air compressor 6, one termination of feeding valve 4 has feeding pipe 7 and stretches into the bottom of liquid storage steel cylinder 1, and the other end is transferred for the give oil nozzle 22 of valve 10 with burner 14 by indusion tube 8, oil purifier 9, oil mass and connected airtight; Blower 11 joins with the air port 21 of burner 14 by ajutage 12, air door 13; Burner 14 is by inwall 15, jacket wall 16, burner plate 18, gasification board 19, heat conducting bar 20, air port 21, the member of comprehensively forming for oil nozzle 22, oil transportation arm 23, oil nozzle 24; The profile of inwall 15 be top to abduction along, below the opening garden tube of the end, wall thickness 8mm is arranged, the profile of jacket wall 16 is opening garden tubes that the end is arranged below the top opening, inwall 15 and jacket wall 16 concentric suits surround distribution plenum 17 jointly, have formed the main body of burner 14 thus; At the bottom surface of jacket wall 16 middle position, air port 21 is housed, be equipped with to oil nozzle 22 near basal surface position cylndrical surface at jacket wall 16, at the close basal surface position in the cylndrical surface of inwall 15, symmetry is equipped with two oil nozzles 24, and connect airtight with giving oil nozzle 22 by oil transportation arm 23, intermediate portion in the cylndrical surface of inwall 15, burner plate 18 and gasification board 19 are housed, leave the gap between two plates, by burner plate 18 inner space that inwall 15 is surrounded is separated into two-part, top is the firing chamber 26 of opening, the bottom is a gasification room 25, also the cylndrical surface with inwall 15 is divided into two-part up and down equably, on this two-part cylndrical surface, three row's inclined holes 27 are respectively arranged respectively on from descending, 8 holes of every row and be level by the cylinder circumference and evenly distribute, between the center line of each inclined hole 27 and cylndrical surface, the place normal 10 ° to 30 ° the angle of cut is arranged, thereby formation inclined hole, by inclined hole 27, gasification room 25 is communicated with distribution plenum 17, firing chamber 26 is communicated with distribution plenum 17, in the bottom center position of inwall 15 a garden cylindricality heat conducting bar 20 is arranged, heat conducting bar 20 passes gasification board 19, burner plate 18 stretches into the top of firing chamber 26.

2. be used for the light hydrocarbon liquid fuel firing unit of Chinese meal stove according to claim 1, it is characterized in that: burner plate 18 is to have made certain thickness disk by refractory material, is covered with fine fire hole on the card; Gasification board 19 is circular metal thin plates, and circular hole gathers on the surface.