CN104067056A

CN104067056A - Cooking stove

Info

Publication number: CN104067056A
Application number: CN201280038743.7A
Authority: CN
Inventors: 朱宏锋; 陈前喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-05
Filing date: 2012-06-05
Publication date: 2014-09-24
Also published as: WO2013149433A1

Abstract

Disclosed is a cooking stove using biofuel (80) pellets, and comprising a main body (1) able to be placed on the ground, the main body (1) comprising a combustion chamber (10) and an auxiliary device chamber (20). The combustion chamber (10) houses a burner (30) and a heat exchange chamber (40) is provided above the burner (30), wherein more than two rows of radiating pipes (47) are provided in the heat exchange chamber (40) with more than two in each row penetrating a front face and a rear face. A transverse baffle (48) is provided between every two rows of radiating pipes (47) and at least two longitudinal baffles are provided between every two transverse baffles (48). A heating drawer (50) is provided in each radiating pipe (47) of the heat exchange chamber (40). The auxiliary device chamber (20) houses a fuel conveyance mechanism (60) and an electrical device (70). The fuel conveyance mechanism (60) comprises a hopper (61), a fuel delivery barrel (62) and a spiral fuel push rod (63). The electrical device (70) comprises a fuel delivery motor (71), an extractor fan (73), a power supply (74) and a power supply switch (75). The cooking stove increases heat-exchange efficiency and reduces wasted energy while not increasing or even decreasing the volume.

Description

A kind of cooking furnace

Technical field

The present invention relates to a kind of cooking furnace of use biomass fuel, used more particularly in one kind By straw, wood chip, agricultural crop straw etc. crush compacting little particle as fuel and with high heat exchanger effectiveness cooking furnace.

Background technology

Biomass Fuel is the little particle that compacting is crushed by straw, wood chip, agricultural crop straw etc..Biomass fuel is as a kind of new energy because its health, environmental protection, efficient, economic dispatch advantage have begun to gradually be widely applied.

Using biomass fuel as cooking furnace method, existing equipment is generally the direct-fired traditional approach of flame.The stove cooked in this way is all had on the stove mouthful above a burner, burner and put a pan, the heating to food is carried out by this single pan.The maximum shortcoming of this heat foods method is exactly that heat exchanger effectiveness is low, no matter this single pan absorbs how many heat, remaining heat can be all discharged beyond stove with tail gas.Actual conditions are that the gas temperature discharged after burning is very high, there is serious energy dissipation phenomenon.

Technical problem

The technical problems to be solved by the invention are to provide a kind of cooking furnace of use biomass fuel, and the stove can sufficiently utilize the energy of fuel compared with traditional stove.

Technical solution

In order to solve this technical problem, the invention provides one kind culinary art Stove, it uses biomass fuel pellet, and including a body that can be placed on ground, body includes a combustion box and an auxiliary equipment case.In combustion box a burning is accommodated in the bottom close to ground Device, burner has fuel frame plate, the side plate that is upwardly extended along fuel frame plate periphery, and a blast area being located at below fuel frame plate, and side plate surrounds above fuel frame plate and offers several air vents on combustion zone, fuel frame plate and side plate.The top of burner has a heat exchange case, heat exchange case includes a front being exposed to outside combustion box, one back side relative with front, one bottom surface above burner, one top surface relative with bottom surface, one first side, and a second side relative with first side.A flue gas discharge opening is just offered on a flue gas inlet port, top surface to being offered at burner on bottom surface.It is provided with more than two rows in heat exchange case, often arranges the heat-dissipating cylinder that two or more runs through front and back, there is a piece of diaphragm plate between every two rows heat-dissipating cylinder, a transverse joint is formed between every diaphragm plate and the front of heat exchange case or the back side, wherein the transverse joint on per adjacent two panels diaphragm plate is different in positive side or with overleaf side；There is at least two panels midfeather per between two panels diaphragm plate, a longitudinal joint is formed between every midfeather and the first side or second side of heat exchange case, wherein the longitudinal joint difference on per adjacent two panels midfeather is in first side side or with second side side. Provided with a heating drawer in each heat-dissipating cylinder of heat exchange case, each heating drawer includes a solid frame being fixedly arranged in heat-dissipating cylinder, a slidable balladeur train and a lid being fixedly arranged on balladeur train on solid frame. Fuel conveying mechanism and electrical equipment are accommodated in auxiliary equipment case.Fuel conveying mechanism includes hopper, and an one end is connected the feed cylinder that the other end is stretched into combustion zone, and a fuel spiral pushing bar being rotatably contained in feed cylinder with the outlet below hopper.Electrical equipment include the feeding motor of a driving fuel spiral pushing bar, one can be into burner blast area in air blower, the air exhauster, power supply and the power switch that are connected with the flue gas discharge opening on heat exchange case top surface blown.

Beneficial effect

The beneficial effect that the present invention is brought is due to multiple rows of heat-dissipating cylinder and diaphragm plate and midfeather structure with transverse joint and longitudinal joint in heat exchange case, i.e. the length of the discharge-channel hot switching path of flue gas has obtained significant increase in limited structure space, so in the case where not increasing or even reducing volume, the heat exchanger effectiveness of stove is obviously improved, and reduces the waste of energy.

Brief description of the drawings

Fig. 1 is the schematic perspective view of stove preferred embodiment of the present invention, and one of heating drawer is in pull-out state.

Fig. 2 is that embodiment illustrated in fig. 1 stove of the present invention is the observation conveniently body portion schematic diagram after clipped original paper, wherein all heating drawers are in pushing status.

Fig. 3 is the cross-sectional plane schematic diagram of embodiment illustrated in fig. 1 stove of the present invention, wherein all heating drawers are in pushing status.

Fig. 4 is the schematic perspective view of heat exchange case part in embodiment illustrated in fig. 1 of the present invention, wherein only showing a heating drawer for being in pull-out state.

Fig. 5 is that heat exchange case shown in Fig. 4 omits a cross-sectional plane partial schematic diagram after heat-dissipating cylinder for observation is convenient.

Fig. 6 is the exploded perspective schematic diagram of heat exchange case shown in Fig. 4.

Fig. 7 a are first row and the part isometric schematic diagram of second row heat-dissipating cylinder flow of flue gas situation in heat exchange case shown in Fig. 6, and which part element omits for observation is convenient.

Fig. 7 b are Fig. 7 a schematic top plan views.

Fig. 8 is the body portion schematic diagram of the 3rd row's heat-dissipating cylinder flow of flue gas situation in heat exchange case shown in Fig. 6, and which part element omits for observation is convenient.

Fig. 9 a are the body portion schematic diagrames of the 4th row's heat-dissipating cylinder flow of flue gas situation in heat exchange case shown in Fig. 6, and which part element omits for observation is convenient.

Fig. 9 b are Fig. 9 a schematic top plan views.And,

Figure 10 is the circuit diagram of electrical equipment part of the present invention.

The preferred forms of the present invention

Fig. 1,2 and 3 show a kind of cooking furnace of the invention.The stove uses biomass fuel 80 Particle, and including a body that can be placed on ground 1, body 1 includes a combustion box 10 and an auxiliary equipment case 20.In combustion box 10 burner 30 is accommodated in the bottom close to ground , burner 30 has fuel frame plate 31, the side plate 32 that is upwardly extended along the periphery of fuel frame plate 31, and a blast area 33 for being located at the lower section of fuel frame plate 31.Side plate 32 Combustion zone 34 is surrounded in the top of fuel frame plate 31.Several air vents 311 are offered on fuel frame plate 31 and side plate 32.

Again with reference to Fig. 4,5 and 6, the top of burner 30 has a heat exchange case 40 in combustion box 10 .Heat exchange case 40 includes a front 41 being exposed to outside combustion box 10, one with the positive 41 relative back sides 42, a bottom surface 43 above burner 30, one and bottom surface 43 relative top surfaces 44, a first side 45, and a second side 46 relative with first side 45.Just to offering a flue gas inlet port at burner 30 on bottom surface 43 431, a flue gas discharge opening 441 is offered on top surface 44.It is provided with more than two rows in heat exchange case 40, often arranges heat-dissipating cylinder 47 of the two or more through front 41 and the back side 42 .In the preferred embodiment of diagram, 4 totally 16 heat-dissipating cylinders 47 are arranged in heat exchange case 40 provided with 4 rows, often.Row's heat-dissipating cylinder 47 close to bottom surface 43 is first row 471 , its row above is second row 472, and second row 472 is the 3rd row 473 above.There are a piece of diaphragm plate 48, first row 471 and second row 472 between every two rows heat-dissipating cylinder 47 Diaphragm plate 48 between heat-dissipating cylinder 47 is the first diaphragm plate 481, and it is the second diaphragm plate 482 that it is a piece of above, and the second diaphragm plate 482 is the 3rd diaphragm plate 483 above.Specific such as Fig. 5 It is shown, a transverse joint 484 is formed between every diaphragm plate 48 and the front 41 or the back side 42 of heat exchange case 40, wherein the difference of transverse joint 484 on per adjacent two panels diaphragm plate 48 is in front 41 sides or same overleaf 42 side.Specifically as shown in Fig. 6, per the first side 45 for having at least two panels midfeather 49, every midfeather 49 and heat exchange case 40 between two panels diaphragm plate 48 Or a longitudinal joint 491 is formed between second side 46, wherein the difference of longitudinal joint 491 on per adjacent two panels midfeather 49 is in the side of first side 45 or with the side of second side 46.It is specific such as to scheme 1st, shown in 2,3 and 4, provided with a heating drawer 50 in each heat-dissipating cylinder 47 of heat exchange case 40, each heating drawer 50 includes a solid frame being fixedly arranged in heat-dissipating cylinder 47 51st, a slidable balladeur train 52 and a lid 53 being fixedly arranged on balladeur train 52 on solid frame 51.A handle 54 is also provided with lid 53.

As shown in Fig. 2 and 3, fuel conveying mechanism 60 and electrical equipment 70 are accommodated in auxiliary equipment case 20.Fuel conveying mechanism 60 include hopper 61, and an one end is connected the feed cylinder 62 that the other end is stretched into combustion zone 34 with the outlet below hopper 61, and one is rotatably contained in feed cylinder 62 In fuel spiral pushing bar 63.The circuit diagram of electrical equipment 70 as shown in Figure 10, including a driving fuel spiral pushing bar 63 feeding motor 71, one can be to the blast area in burner 30 Air blowers 72 of air-supply in 33, the air exhauster 73, power supply 74, a power switch 75 and the power supply indicator that are connected with the flue gas discharge opening 441 on the top surface 44 of heat exchange case 40 76 .Power supply 74 both can be power of alterating and direct current 741, can also be used as accessory power supply by multiple-connected battery 742 on power of alterating and direct current 741.Power of alterating and direct current 741 and battery 742 Can individually it power.Power switch 75 is installed on auxiliary equipment case 20, can control the power supply of whole circuit.Specifically as shown in Fig. 1, switch indication light 76 is also installed on power switch on body 1 Near 75, the folding condition of power switch 75 is used to refer to.

Fuel 80 is biomass fuel, is the little particle that compacting is crushed by straw, wood chip, agricultural crop straw etc..

When in use, user first can put the body 1 of stove of the present invention steadily on the ground of required position, and fuel is poured into hopper 61 80 particles.After user presses power switch 75, switch indication light 76 is lighted, and represents power on, and stove is started working.Now feeding motor 71 is rotated, and drives fuel spiral pushing bar 63 by fuel In 80 particles feeding burner 30, the particle of fuel 80 is fallen under gravity on fuel frame plate 31.Now, user can be by the paper lighted or cotton ball soaked in alcohol etc. from burner 30 on body 1 One fire door 11 of preceding setting lights the fuel 80 on fuel frame plate 31 in combustion zone 34.It is also that at the same time, air blower 72 starts to blow into blast area 33, and wind passes through fuel frame plate 31 Enter combustion zone 34 with the air vent 311 opened up on side plate 32, for the oxygen needed for the burning of fuel 80 is provided.When fuel 80 The methane gas of low concentration can be produced when burning to a certain extent, these methane gas produce the high-temperature flue gas of the flowing with flame in the presence of the air-flow that air blower 72 is produced.These high-temperature flue gas are from burner 30 Up, the flue gas inlet port 431 through the bottom of heat exchange case 40 enters heat exchange case 40, and most heat exchange case 40 is flowed out through the flue gas discharge opening 441 on top surface 44 afterwards under the drive of air exhauster 73 .User can pull open each heating drawer 50, it would be desirable to which the food of heating is directly placed on balladeur train 52, or it is specific food is put into the container 55 on balladeur train 52 as shown in Fig. 4, then by balladeur train 52 It is pushed into heat-dissipating cylinder 47.As shown in the arrow in Fig. 5,7a, 7b, 8,9a and 9b, flue gas can only pass through transverse joint 484 and longitudinal joint staggeredly in heat exchange case 40 491 is unidirectional roundabout forward.Flue gas move ahead during, the heat in flue gas will fully be exchanged with each row's heat-dissipating cylinder 47, and in heat-dissipating cylinder 47 heating drawer 50 inside food heat.

When needing to stop burning, user can be extinguished with disconnecting power switch 75, switch indication light 76, feeding motor 71 Stop operating, air blower 72 stops.Do not have fuel in the new supply of fuel 80 burning, combustion zone 34 will after-flame quickly, user can open chamber door 11, and cleaning is from burner 30 The ashes inside fallen.The marginal portion of fuel frame plate 31 can be deflected up certain angle, and a piece of low land is formed at middle part.Low land can gather fuel 80, so as to avoid edge fuel combustion from being heated insufficient generation black smoke.

Claims

1. a kind of cooking furnace, it is characterised in that use biomass fuel（ 80 ）Particle is as fuel, and including a body that can be placed on ground（ 1 ）, body（ 1 ）Including a combustion box（ 10 ）With an auxiliary equipment case（ 20 ）；

Combustion box（ 10 ）The inherent bottom close to ground accommodates a burner（ 30 ）, burner（ 30 ）With a fuel frame plate（ 31 ）, one along fuel frame plate（ 31 ）The side plate that periphery is upwardly extended（ 32 ）, and one be located at fuel frame plate（ 31 ）The blast area of lower section（ 33 ）, side plate（ 32 ）In fuel frame plate（ 31 ）Top surrounds combustion zone（ 34 ）, fuel frame plate（ 31 ）And side plate（ 32 ）On offer several air vents（ 311 ）；

Burner（ 30 ）Top there is heat exchange case（ 40 ）, heat exchange case（ 40 ）Combustion box is exposed to including one（ 10 ）Outside front（ 41 ）, one and front（ 41 ）The relative back side（ 42 ）, one is located at burner（ 30 ）The bottom surface of top（ 43 ）, one and bottom surface（ 43 ）Relative top surface（ 44 ）, a first side（ 45 ）, and one and first side（ 45 ）Relative second side（ 46 ）, bottom surface（ 43 ）On just to burner（ 30 ）Place offers a flue gas inlet port（ 431 ）, top surface（ 44 ）On offer a flue gas discharge opening（ 441 ）, in heat exchange case（ 40 ）Inside it is provided with more than two rows, often arranges two or more through front（ 41 ）And the back side（ 42 ）Heat-dissipating cylinder（ 47 ）, every two rows heat-dissipating cylinder（ 47 ）Between have a piece of diaphragm plate（ 48 ）, every diaphragm plate（ 48 ）With heat exchange case（ 40 ）Front（ 41 ）Or the back side（ 42 ）Between be formed with a transverse joint（ 484 ）, wherein per adjacent two panels diaphragm plate（ 48 ）On transverse joint（ 484 ）Difference is in front（ 41 ）Side or with overleaf（ 42 ）Side, per two panels diaphragm plate（ 48 ）Between have at least two panels midfeather（ 49 ）, every midfeather（ 49 ）With heat exchange case（ 40 ）First side（ 45 ）Or second side（ 46 ）Between be formed with a longitudinal joint（ 491 ）, wherein per adjacent two panels midfeather（ 49 ）On longitudinal joint（ 491 ）Difference is in first side（ 45 ）Side or with second side（ 46 ）Side；

Heat exchange case（ 40 ）Each heat-dissipating cylinder（ 47 ）Inside it is provided with a heating drawer（ 50 ）, each heat drawer（ 50 ） Heat-dissipating cylinder is fixedly arranged on including one（ 47 ）Interior solid frame（ 51 ）, one it is slidable located at solid frame（ 51 ）On balladeur train（ 52 ）And one be fixedly arranged on balladeur train（ 52 ）On lid（ 53 ）；

Auxiliary equipment case（ 20 ）Inside accommodate fuel conveying mechanism（ 60 ）And electrical equipment（ 70 ）；

Fuel conveying mechanism（ 60 ）Including a hopper（ 61 ）, an one end and hopper（ 61 ）The outlet of the lower section other end that is connected stretches into combustion zone（ 34 ）In feed cylinder（ 62 ）, and one be rotatably contained in feed cylinder（ 62 ）In fuel spiral pushing bar（ 63 ）；

Electrical equipment（ 70 ）Including a driving fuel spiral pushing bar（ 63 ）Feeding motor（ 71 ）, one can be to burner（ 30 ）Interior blast area（ 33 ）The air blower of interior air-supply（ 72 ）, one and heat exchange case（ 40 ）Top surface（ 44 ）On flue gas discharge opening（ 441 ）The air exhauster being connected（ 73 ）, power supply（ 74 ）And a power switch（ 75 ）.