CN102829495B - Energy-saving stove preheating premixed combustible gas by using after heat - Google Patents

Energy-saving stove preheating premixed combustible gas by using after heat Download PDF

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Publication number
CN102829495B
CN102829495B CN201210355860.8A CN201210355860A CN102829495B CN 102829495 B CN102829495 B CN 102829495B CN 201210355860 A CN201210355860 A CN 201210355860A CN 102829495 B CN102829495 B CN 102829495B
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China
Prior art keywords
stove
hybrid chamber
energy
flow guiding
burner
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CN201210355860.8A
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Chinese (zh)
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CN102829495A (en
Inventor
邓延鸿
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邓延鸿
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Priority to CN201210355860.8A priority Critical patent/CN102829495B/en
Publication of CN102829495A publication Critical patent/CN102829495A/en
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Publication of CN102829495B publication Critical patent/CN102829495B/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention relates to an energy-saving stove preheating premixed combustible gas by using after heat. The stove comprise a stove plate, a burner and a mixing chamber, wherein the burner is arrange in the middle of the bottom of the stove plate, and the burner is communicated with the mixing chamber; the stove also comprises a fume guide hood for guiding fume after heat in the stove plate to the outer wall of the mixing chamber to preheat the premixed combustible gas in the mixing chamber; a flanged edge contacting with a cooker is arranged at the border of the stove plate; the fume guide hood is communicated with the bottom of the stove plate, and is sleeved outside the mixing chamber; the fume guide hood is in sealed connection with the outer wall of the mixing chamber at the bottom; the fume guide hood is provided with an after heat discharge outlet; and the stove plate is internally provided with cellular porous ceramic which is obliquely erected through an energy gathering plate bracket. According to the energy-saving stove provided by the invention, the traditional fume emission notch at the upper part of the stove plate is omitted, direct discharge of fume whose after heat is not utilized is reduced; and through arranging the mixing chamber in the fume guide hood, a preheating device and the stove form a whole body, and the purpose of preheating the premixed combustible gas delivered into the stove can be achieved without need of splitting for independent use.

Description

A kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize
Technical field
The present invention relates to a kind of gas kitchen ranges, particularly a kind of energy-efficient commercial gas kitchen range that make full use of waste heat.
Background technology
The kitchen range that at present business is used generally all need forced air supply, and thermic load is up to 25KW-50KW, and kitchen range to produce the heat of flue gas be to be all directly discharged in the external world and well not utilized mostly.Even if more existing kitchen range are provided with the device that air is carried out to preheating, but preheating device belongs to the corollary apparatus of independent use, and do not form one with kitchen range itself.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of energy-saving stove that can utilize waste heat pre-mixing gas combustion to be carried out to preheating.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize, comprise stone or metal plate for standing a stove on as a precaution against fire, burner and hybrid chamber, middle part at the bottom of stone or metal plate for standing a stove on as a precaution against fire is provided with burner, burner is communicated with hybrid chamber, this kitchen range also comprises fume flow guiding cover, for the fume afterheat in stone or metal plate for standing a stove on as a precaution against fire is guided to hybrid chamber outer wall so that pre-mixing gas combustion in hybrid chamber is carried out to preheating, the edge of stone or metal plate for standing a stove on as a precaution against fire has the flange contacting with pot, fume flow guiding cover is communicated with stone or metal plate for standing a stove on as a precaution against fire bottom, fume flow guiding cover is sheathed on outside hybrid chamber, fume flow guiding cover bottom is tightly connected with the outer wall of hybrid chamber, fume flow guiding cover is provided with the outlet of waste heat discharge, this kitchen range also comprises cellular porous pottery and cumulative grillage, cellular porous pottery is located in stone or metal plate for standing a stove on as a precaution against fire by cumulative grillage tilting rack, and the structure of dehiscing ringwise, the connectivity part of fume flow guiding cover and stone or metal plate for standing a stove on as a precaution against fire bottom is positioned at the below of cellular porous pottery.
The present invention is arranged on hybrid chamber in fume flow guiding cover, makes preheating device and kitchen range form one, does not need to split independent use and just can realize the object that the pre-mixing gas combustion to passing in kitchen range carries out preheating.The heat of flue gas is arrived cellular porous pottery by the bottom of a pan scattering, and cellular porous pottery is held back the heat in flue gas, and further the radiation heating the bottom of a pan, has guaranteed the abundant heat exchange of all flue gases and the bottom of a pan in stone or metal plate for standing a stove on as a precaution against fire.And by the flue gas of cellular porous pottery, be collected again and enter in fume flow guiding cover, the combustion gas of premix and air in hybrid chamber are carried out to preheating, make full use of the heat energy that kitchen range produce.
Cumulative grillage is used for making cellular porous pottery in stone or metal plate for standing a stove on as a precaution against fire, to keep tilting fixing, equidistant on it a row or multi-row through hole is set, and does not hinder by the flue gas of cellular porous pottery and enters smoothly in fume flow guiding cover.
Cellular porous pottery can be integrally formed, after also can being polylith amalgamation, is set up on energy collecting plate tilting rack.
The structure of fume flow guiding cover described above is up big and down small frustum cone structure, and the arranged outside of fume flow guiding cover bottom has blast pipe, has outlet on blast pipe, and outlet is for outwards directly discharging or being connected with other heaters.
The bottom of fume flow guiding cover described above is tightly connected by kuppe retaining ring and hybrid chamber.
The present invention is communicated with stone or metal plate for standing a stove on as a precaution against fire, fume flow guiding cover, blast pipe, cancels the traditional fume emission breach in stone or metal plate for standing a stove on as a precaution against fire top, reduces and directly discharges without the flue gas of UTILIZATION OF VESIDUAL HEAT IN.Useless flue gas in fume flow guiding cover is sent into other heaters (as tail Zhang) of kitchen range by smoke exhaust pipe, for heat cook for cooking, wash pot water, make full use of remaining heat in flue gas, make kitchen range reach the object of energy-conservation environmental protection again.The frustum cone structure design that fume flow guiding cover is up big and down small, can remain in fume flow guiding cover the waste heat flowing backwards more enduringly, makes full use of waste heat to facilitate.
Hybrid chamber described above is the step tubular structure phasing down from top to down, and the one end that is wherein provided with burner is top, and the top of hybrid chamber is located in stone or metal plate for standing a stove on as a precaution against fire, and the outer wall of hybrid chamber bottom is tightly connected by kuppe retaining ring and fume flow guiding cover.
Preferably, on hybrid chamber outer wall described above, be also provided with some fins.
Preferred another one scheme is that the inwall of hybrid chamber outer wall described above and/or fume flow guiding cover has the helicitic texture of downward water conservancy diversion.
The structure of hybrid chamber of the present invention is the stair structure phasing down from top to down, and so structure increases the heat exchange area of hybrid chamber and fume flow guiding cover, increases UTILIZATION OF VESIDUAL HEAT IN efficiency.The fin of hybrid chamber outer wall mainly plays the effect that increases heat exchange area, also plays the effect that delays waste heat discharge.And the helicitic texture of downward water conservancy diversion has guaranteed that the flue gas of fume flow guiding cover is along the downward water conservancy diversion of the hand of spiral effectively, can effectively increase swap time and the area of waste heat.
Hybrid chamber described above communicates with airduct elbow, and one end of airduct elbow and kuppe retaining ring are joined, and the other end is connected with blower fan.
In airduct elbow described above, be provided with ever-burning flame combustion gas and main fiery combustion gas two passes, ever-burning flame blast tube communicates with burner, and main fiery gas pipeline is positioned at the porch of blower fan air intake.
The middle force feed wind air inlet that kitchen range of the present invention adopt, the noise that blower fan and burning produce significantly reduces 30 decibels.
The present invention presses combustion gas and air after best proportioning premix, pass into again preheating together in hybrid chamber, can utilize molecular thermalmotion to promote the adequacy that both mix on the one hand, significantly save on the other hand pre-mixing gas combustion and reach the heat that its burning-point need consume, thereby make burning more abundant, flame temperature is higher, reduces the discharge capacity of carbon monoxide.
Burner entirety described above is in the form of annular discs, and the bottom surface of disk is along the circumferential direction evenly provided with multiple bar-shaped troughs of radially opening, and the corresponding bar-shaped trough of end face of disk arranges multiple through holes, and bar-shaped trough is communicated with through hole.The middle part of the bottom surface of burner is provided with arc-shaped convex, and bar-shaped trough is around this arc-shaped convex outer setting.
Mist in hybrid chamber enters after burner by the bar-shaped trough of the bottom of burner, again from the through hole jet impact the bottom of a pan on burner top, and arc-shaped convex makes the further scattering of the air mixture of preheating, improve the adequacy that combustion gas mixes with air, then concentrate and enter by bar-shaped trough the manhole communicating with it and eject burning, can further strengthen the adequacy that combustion gas mixes with air, and maintain to greatest extent the expulsion pressure of pre-mixing gas combustion, thereby efficiency of combustion and the heat exchanger effectiveness of kitchen range are greatly promoted.
Accompanying drawing explanation
Fig. 1 is planar structure connection diagram of the present invention;
Fig. 2 is the side view schematic diagram of bell of the present invention;
Fig. 3 is the top view schematic diagram of bell of the present invention;
Fig. 4 is the side view schematic diagram of fume flow guiding cover of the present invention;
Fig. 5 is the top view schematic diagram of fume flow guiding cover of the present invention;
Fig. 6 is the side view schematic diagram of airduct elbow of the present invention;
Fig. 7 is the top view schematic diagram of the first cumulative grillage of the present invention;
Fig. 8 is the top view schematic diagram of the second cumulative grillage of the present invention;
Fig. 9 is the side view schematic diagram of burner of the present invention;
Figure 10 is the top view schematic diagram of burner of the present invention;
Figure 11 is the side view schematic diagram of hybrid chamber of the present invention;
Figure 12 is the top view schematic diagram of hybrid chamber of the present invention;
Figure 13 is the side view schematic diagram of kuppe retaining ring of the present invention;
Figure 14 is the top view schematic diagram of kuppe retaining ring of the present invention;
Figure 15 is the side view schematic diagram that the present invention holds together fire ring;
Figure 16 is the top view schematic diagram that the present invention holds together fire ring;
Figure 17 is the side view schematic diagram of the present invention's fire cover kept burning day and night;
Figure 18 is the top view schematic diagram of the present invention's fire cover kept burning day and night.
The specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
With reference to Fig. 1, 2, 3, 4, 5, 6, 11, 12, 13, shown in 14, a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize of the present invention, comprise stone or metal plate for standing a stove on as a precaution against fire 1, fume flow guiding cover 2, airduct elbow 3, cellular porous ceramic 4, cumulative grillage 5, burner 6 and hybrid chamber 7, stone or metal plate for standing a stove on as a precaution against fire 1 is the hollow cylinder dish of middle part perforate, the edge of stone or metal plate for standing a stove on as a precaution against fire 1 has the flange contacting with pot, stone or metal plate for standing a stove on as a precaution against fire 1 is interior is provided with the bending of three places altogether, the bottom of stone or metal plate for standing a stove on as a precaution against fire 1 communicates with fume flow guiding cover 2, the structure of fume flow guiding cover 2 is up big and down small frustum cone structure, the arranged outside of fume flow guiding cover 2 bottoms has blast pipe, the outlet of blast pipe is connected with the tail Zhang of kitchen range, fume flow guiding cover 2 is sheathed on outside hybrid chamber 7, the step tubular structure of hybrid chamber 7 for phasing down from top to down, the one end that is provided with burner 6 is top, the top of hybrid chamber 7 is located in stone or metal plate for standing a stove on as a precaution against fire 1, the outer wall of the bottom of fume flow guiding cover 2 and hybrid chamber 7 is tightly connected mutually by kuppe retaining ring 8, on the outer wall of hybrid chamber 7, be also provided with some fins, on the inwall of the outer wall of hybrid chamber 7 and fume flow guiding cover 2, be equipped with the helicitic texture of downward water conservancy diversion, the bottom of hybrid chamber 7 is communicated with the blower fan elbow 3 of " L " type by kuppe retaining ring 8, one end of airduct elbow 3 and kuppe retaining ring 8 are communicated with, the other end of airduct elbow 3 is connected to blower fan, airduct elbow 3 be connected with blower fan end a side be provided with ever-burning flame combustion gas breather pipe 9 and main fiery combustion gas breather pipe 10, ever-burning flame combustion gas breather pipe 9 communicates with burner 6, main fiery combustion gas breather pipe 10 is located at blower fan air intake porch.
With reference to Fig. 1, 7, 8, 9, 10, 15, 16, 17, shown in 18, cumulative grillage 5 is arranged on the top edge of hybrid chamber 7, equidistantly on the sidewall of cumulative grillage 5 have multiple through holes, through hole can design in a row or two rows according to actual needs, cellular porous ceramic 4 are located in stone or metal plate for standing a stove on as a precaution against fire 1 by cumulative grillage 5 tilting racks, cellular porous ceramic 4 dehisce ringwise structure and cellular porous ceramic 4 outermost edges are close to stone or metal plate for standing a stove on as a precaution against fire 1, fume flow guiding cover 2 is positioned at cellular porous ceramic 4 below with the connectivity part of stone or metal plate for standing a stove on as a precaution against fire 1 bottom, burner 6 is positioned at the medium position of stone or metal plate for standing a stove on as a precaution against fire 1 bottom and is communicated with hybrid chamber 7, burner 6 entirety are in the form of annular discs, comprise holding together fire ring 11 and fire cover kept burning day and night 12, the upper, annular edge 601 of burner 6 is socketed in the top of hybrid chamber 7, the bottom of the lower annular edge 602 of burner 6 is along the circumferential direction evenly provided with multiple bar-shaped troughs of radially opening 603, on the upper, annular edge 601 of burner 6, correspondence is provided with multiple through holes 604, bar-shaped trough 603 communicates with through hole 604, the lower central position of burner 6 is provided with arc-shaped convex bottom 605, the medium position of arc-shaped convex bottom 605 has the circular hole 606 that can pass through for ever-burning flame combustion gas breather pipe 9, fire cover 12 kept burning day and night is placed on circular hole 606, in fire cover 12 kept burning day and night, have some apertures 121, hold together on the upper, annular edge 601 that fire ring 11 is arranged on burner 6.
While using kitchen range, first with pressing air is sent into blower fan elbow 3 in blower fan, then in ever-burning flame combustion gas breather pipe 9, pass into suitable combustion gas, pass into ever-burning flame combustion gas and directly arrive burner 6 by circular hole 606, and with close by 607 air pre-mixing that enter after, from 121 holes of fire cover 12 kept burning day and night, spray ignition.In the time that needs add high flame and normally use, past main fiery combustion gas breather pipe 10 aweather pipe bend 3 passes into combustion gas, main fiery combustion gas and air enter hybrid chamber 7 after best proportioning premix, after pre-mixing gas combustion preheating the scattering process by burner 6 bottom circular arc type projections 605 in hybrid chamber 7 further fully mix, concentrate to enter by bar-shaped trough 603 manhole 604 communicating with it and eject burner 6 and meet ever-burning flame ignition combustion.Flue gas after burning is by holding together fire ring 11 further at the bottom of the interior diffusion of stone or metal plate for standing a stove on as a precaution against fire 1 heating kettle, now, the temperature of stone or metal plate for standing a stove on as a precaution against fire 1 is up to 1600 ℃, the bottom of a pan passes through cellular porous ceramic 4 by most of high-temperature flue gas scattering again simultaneously, now cellular porous ceramic 4 the heat in part of smoke is held back, then continue again at the bottom of heat radiation twice-cooked stir-frying, the flue gas being trapped after part heat is entered the bottom of stone or metal plate for standing a stove on as a precaution against fire 1 and is entered in fume flow guiding cover 2 thereupon by the aperture on cellular porous ceramic 4, now, the flue-gas temperature that is positioned at fume flow guiding cover 2 is about 400-500 ℃, flue gas moves from top to down, pre-mixing gas combustion from below to up in hybrid chamber 7 is carried out to preheating, gas temperature in hybrid chamber 7 rises to approximately 200 ℃ thereupon, the complete useless flue gas of preheating finally enters into the tail Zhang of kitchen range by smoke exhaust pipe, the water that continues to heat cooking and wash pot.
The announcement of book and instruction according to the above description, those skilled in the art in the invention also can change and revise above-mentioned embodiment.Therefore, the present invention is not limited to the specific embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition,, although used some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention.

Claims (10)

1. utilize the energy-saving stove of waste heat to pre-mixing gas combustion preheating, comprise stone or metal plate for standing a stove on as a precaution against fire, burner and hybrid chamber, the middle part at the bottom of described stone or metal plate for standing a stove on as a precaution against fire is provided with burner, and described burner is communicated with hybrid chamber, it is characterized in that:
Described hybrid chamber is the step tubular structure phasing down from top to down;
Also comprise fume flow guiding cover, for the fume afterheat in stone or metal plate for standing a stove on as a precaution against fire being guided to hybrid chamber outer wall so that pre-mixing gas combustion in hybrid chamber is carried out to preheating;
The edge of described stone or metal plate for standing a stove on as a precaution against fire has the flange contacting with pot, and described fume flow guiding cover is communicated with stone or metal plate for standing a stove on as a precaution against fire bottom; Fume flow guiding cover is sheathed on outside hybrid chamber, and described fume flow guiding cover bottom is tightly connected with the outer wall of hybrid chamber, and fume flow guiding cover is provided with the outlet of waste heat discharge;
Also comprise cellular porous pottery and cumulative grillage, cellular porous pottery is located in stone or metal plate for standing a stove on as a precaution against fire by cumulative grillage tilting rack, and the structure of dehiscing ringwise, and the connectivity part of fume flow guiding cover and stone or metal plate for standing a stove on as a precaution against fire bottom is positioned at the below of cellular porous pottery.
2. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, it is characterized in that: the structure of described fume flow guiding cover is up big and down small frustum cone structure, the arranged outside of fume flow guiding cover bottom has blast pipe, on blast pipe, have outlet, described outlet is for outwards directly discharging or being connected with other heaters.
3. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, is characterized in that: the bottom of described fume flow guiding cover is tightly connected by kuppe retaining ring and hybrid chamber.
4. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, it is characterized in that: the one end that is provided with burner on described step tubular structure is top, the top of hybrid chamber is located in stone or metal plate for standing a stove on as a precaution against fire, and the outer wall of hybrid chamber bottom is tightly connected by kuppe retaining ring and fume flow guiding cover.
5. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, is characterized in that: on described hybrid chamber outer wall, be also provided with some fins.
6. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, is characterized in that: the inwall of described hybrid chamber outer wall and/or fume flow guiding cover has the helicitic texture of downward water conservancy diversion.
7. according to a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize described in claim 4-6 any one, it is characterized in that: described hybrid chamber communicates with airduct elbow, the airduct elbow other end is connected with blower fan.
8. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 7, it is characterized in that: in described airduct elbow, be provided with ever-burning flame combustion gas and main fiery combustion gas two passes, ever-burning flame blast tube communicates with burner, and main fiery gas pipeline is positioned at the porch of blower fan air intake.
9. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 1, it is characterized in that: described burner entirety is in the form of annular discs, the bottom surface of disk is along the circumferential direction evenly provided with multiple bar-shaped troughs of radially opening, the corresponding bar-shaped trough of end face of disk arranges multiple through holes, and described bar-shaped trough is communicated with described through hole.
10. a kind of energy-saving stove of waste heat to pre-mixing gas combustion preheating that utilize according to claim 9, is characterized in that: the middle part of the bottom surface of described burner is provided with arc-shaped convex, and bar-shaped trough is around this arc-shaped convex outer setting.
CN201210355860.8A 2012-09-20 2012-09-20 Energy-saving stove preheating premixed combustible gas by using after heat CN102829495B (en)

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JP2000121058A (en) * 1998-10-12 2000-04-28 Takeshi Kishimoto Combustion type kitchen range and hot water supply system
CN201662105U (en) * 2010-01-01 2010-12-01 时取 Novel energy-concentrated stove, kitchen energy-saving system and hot-water generating device
CN202092185U (en) * 2011-05-25 2011-12-28 浙江工业大学 Efficient and energy-saving tubular heat-exchange stove
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CN203258703U (en) * 2013-01-09 2013-10-30 邓延鸿 Furnace basin and stove applying same

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