CN201612526U - Natural gas flameless catalytic combustion oven with approximate zero pollutant discharge - Google Patents
Natural gas flameless catalytic combustion oven with approximate zero pollutant discharge Download PDFInfo
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- CN201612526U CN201612526U CN2010201219102U CN201020121910U CN201612526U CN 201612526 U CN201612526 U CN 201612526U CN 2010201219102 U CN2010201219102 U CN 2010201219102U CN 201020121910 U CN201020121910 U CN 201020121910U CN 201612526 U CN201612526 U CN 201612526U
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- catalytic combustion
- oven
- flameless catalytic
- natural gas
- baking box
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Abstract
The utility model discloses a natural gas flameless catalytic combustion oven with approximate zero pollutant discharge, which belongs to the field of food processing equipment and relates to natural gas flameless catalytic combustion application. A movable door is arranged on the front surface of an oven body of the oven, a glass viewing port is arranged in the middle of the movable door, a stainless steel perforated plate and a meat wheel frame are arranged inside the oven body, an oil collecting plate is placed on the bottom layer of the oven body, the top and a lateral surface of the oven body are respectively provided with a ventilating ball valve, the bottom of the oven body is provided with a ventilating chimney connector, and one side of the oven is externally connected with a flameless catalytic combustor. The natural gas flameless catalytic combustion oven can achieve approximate zero pollutant discharge of CO and NOx. Experiment results show that the natural gas flameless catalytic combustion oven is high in thermal efficiency and low in energy consumption compared with an electric oven, and further, smell and taste of food baked by the catalytic combustion oven are better.
Description
Technical field
The utility model belongs to the food processing equipment scope, particularly according to the natural gas catalytic combustion theory develop a kind of natural gas flameless catalytic combustion baking box of near zero pollutant discharge.
Background technology
Along with the development of society, the needs to the energy grow with each passing day people in life with in producing, meanwhile also gradually increase the discharging of pollutant.With the clean fuel natural gas is example, though natural gas has entered into our daily life as a kind of high-grade energy, but the burner major part of burning as the energy with natural gas still adopts the mode of flame combustion at present, and flame combustion not only easily produces CO and a large amount of NO
x, but also cause reaction not exclusively easily, thus the waste of fuel caused.The baking of food at present is still to adopt the fuel gas oven and the electric oven of flame combustion mode.The mode of heating of fuel gas oven is to add hot-air with combustion gas earlier, and the reusable heat air takes heated food; Electric oven partly is made up of casing, heater, electric control system and annex etc., and the heater of electric oven is an electrical bar, and after the electrical bar energising, surface temperature raises rapidly.When temperature reached 500 ℃～600 ℃, its heat mainly radiated with ultrared form, and the food that is toasted in the stove absorbs, thereby the food in the stove is produced the baking effect.Present many industry departments all utilize pattern at exploitation novel energy separately, utilize the patented product of our patent No. for ZL200820122469.2, natural gas flameless catalytic combustion stove comes baked goods as thermal source, done some relatively with the common electrical baking box simultaneously: the electric oven general radiation is conducted heat and is accounted for about 60%～70%, convection heat transfer' heat-transfer by convection accounts for 30%, by electrical bar surface temperature and Wien's displacement law as can be known, the radiation wavelength in the stove is 3.319 μ m～3.748 μ m.Utilize the mode of catalytic combustion, can make efficiency of combustion, can reach CO and NO simultaneously near 100%
x, near zero pollutant discharge.Experimental result be the food roasted out of catalytic combustion baking box on the sense of smell and the sense of taste better.
The radiation contrast of catalytic combustion baking box and electric oven is as shown in table 1.
The radiation contrast of table 1. catalytic combustion baking box and electric oven
| Heater surface temperature (K) | Radiation wavelength (μ m) | |
| The catalytic combustion baking box | 1200～1500 | 1.9317～2.4146 |
| Electric oven | 773～873 | 3.319～3.748 |
The utility model content
The purpose of this utility model is not only easily to produce CO and a large amount of NO at flame combustion in the prior art
x, but also cause reaction not exclusively easily, thus the waste of fuel caused; The electric oven general radiation is conducted heat and to be accounted for about 60%～70%, the deficiency that energy consumption is big and a kind of natural gas flameless catalytic combustion baking box of near zero pollutant discharge is provided; It is characterized in that described flameless catalytic combustion baking box casing is made by stainless steel, the casing front of baking box is provided with dodge gate, has glass peephole, inside to be provided with one deck stainless steel porous plate in the middle of the dodge gate, and bottom is placed oil collection plate; Top and a side respectively are provided with a ventilation ball valve, and the bottom is provided with the air chimney interface; The external flameless catalytic combustion device in a side of casing, casing top are provided with circle wheel meat frame, and circle wheel meat frame turning handle is installed by bearing by casing top cover central authorities, and circle wheel meat frame turning handle is central fastening with circle wheel meat frame.
Described oil collection plate divides two-layer up and down, and levels staggers.
Hang girder steel on the described circle wheel meat frame.
The outlet of described flameless catalytic combustion device is connected with the casing air inlet, the inlet end of flameless catalytic combustion device connects the mixed gas supply device, outlet is connected this mixed gas supply device with gas meter by frequency-variable controller, air blast and mass air flow sensor polyphone, mass air flow sensor outlet, and the two-way output that mass air flow sensor and gas meter are connected to the two-way current regulator power supply upward constitutes.
The beneficial effects of the utility model are to utilize the mode natural gas flameless catalytic combustion baking box of catalytic combustion can make efficiency of combustion near 100%, can reach CO and NO simultaneously
x, near zero pollutant discharge.Experimental result shows that with respect to electric oven thermal efficiency height, energy consumption is low, and the food that the catalytic combustion baking box is roasted out is better on the sense of smell and the sense of taste.
Description of drawings
Fig. 1 is a flameless catalytic combustion Roasting oven structure schematic diagram.
Fig. 2 is 1 Fig. 1 flameless catalytic combustion baking box vertical view.
Fig. 3 is a flameless catalytic combustion baking box body structure schematic diagram.
Fig. 4 is a stainless steel porous plate schematic diagram.
Fig. 5 is circle wheel meat shelf structure schematic diagram.
The specific embodiment
The utility model provides a kind of natural gas flameless catalytic combustion baking box of near zero pollutant discharge.Illustrated below in conjunction with accompanying drawing.
Figure 1 shows that flameless catalytic combustion Roasting oven structure schematic diagram.Described flameless catalytic combustion baking box casing is made by double-deck stainless steel, fills the asbestos 20 with insulation, fire-proof function between the double-deck stainless steel, and the internal capacity of baking box is 100 * 60 * 60cm
3, the casing top is provided with the circle wheel meat frame 19 that radius is 25cm, and circle wheel meat frame turning handle 12 is installed by bearing 13 by casing top cover 14 central authorities, and circle wheel meat frame turning handle 12 is by the medium pore 25 and circle wheel meat frame fastening (as shown in Figure 1, 2, 3) of circle wheel meat frame.The external flameless catalytic combustion device 3 in side of baking oven, the outlet of flameless catalytic combustion device 3 is connected with casing air inlet 9, the inlet end of flameless catalytic combustion device 3 connects the mixed gas supply device, 4 outlets are connected this mixed gas supply device with gas meter by frequency-variable controller 8, air blast 7 and mass air flow sensor 6 polyphones, mass air flow sensor 6 outlets, and the two-way output that mass air flow sensor 6 and gas meter 4 are connected to two-way current regulator power supply 5 upward constitutes.The first ventilation ball valve 16 is set on casing top cover 14 and the second ventilation ball valve 17 is set in bottom, a side of casing; Outside air enters from the second ventilation ball valve 17, produced a large amount of hot gas heating by catalytic combustion, hot-air is subjected to fan action upwards, the food generation heat convection in hot-air and the baking box, and hot-air is discharged (as shown in Figure 3) via the first ventilation ball valve 16 is set on the casing top cover 14 then.The casing front of baking box is provided with dodge gate 1, has glass peephole 2, inside to establish the stainless steel porous by 21 (shown in Fig. 3,4) in the middle of the dodge gate 1, and bottom is placed oil collection plate 23; Oil collection plate divides two-layer up and down, levels placements of staggering, and the upper strata is porose, flowline 22 derivation that oil-collecting is provided with from the lower floor limit, the bottom is provided with air chimney interface 24; On baking box collet 11, fix four and move wheel 10.Hang girder steel 26 (as shown in Figure 5) on the above-mentioned circle wheel meat frame 19, scalable hook 18 hangs over to be hung on the girder steel 26; Common food just is placed on the stainless steel porous by 21 barbecues, and some foods that need hang hang over scalable hook 18 and hang barbecue on the girder steel 26.Waste gas is provided with the first ventilation ball valve 16 from casing top cover 14 and discharges.Food is put into from dodge gate 1, the stainless steel porous by 21 and bottom place oil collection plate 23 can disassembly, cleaning, can take out from dodge gate.
The fuel gas buring mode of catalytic burner is the complete pre-mixing type burning, the premixer is in the bottom of burner, the combustion gas source is municipal gas ductwork, air is by the air blast supply, the flow proportional of combustion gas and air is controlled by flowmeter, and flowmeter is by the power supply of two-way voltage-stabilized power supply, and air blast links to each other with frequency converter, control the frequency and the burnt gas valve aperture of frequency converter by the numerical value that flowmeter shows, thereby carry out stable operation.
The rated voltage of electric oven: 220V rated frequency: 50HZ rated power: 1000W, can be for a long time with 250 ℃ of left and right sides heated foods.Adopt same rice dragon beef to be divided into two approximate (a) 204g of quality, (b) 174g in the experimentation.Original state, two meat are respectively 204g and 174g, can analyze two and be identical freshness, and weight is approximate yellowish pink scarlet, and meat fiber is arranged in order, and fibr tissue is thicker, contains little fat.In catalyticing combustion process, heat radiation right side radiation in stove is gone into the stove, carries out heat transmission in stove, and burning is lighted a fire to catalytic combustion system, feeds gas quantity 10.4L/min.The catalytic combustion baking box reaches stable catalyst combustion reaction after 10 minutes, and deeply going deep into baking box by gas valve with thermocouple, to record temperature be 197.3 ℃.Two meat are packed with tinfoil respectively, (a) hung the catalytic combustion baking box.The electric oven temperature is transferred to 250 ℃ of heating, (b) put into electric oven.Heat after 10 minutes, color (a) is more shallow, and tangible meat fragrance is arranged, and the water that meat fiber exquisiteness (b) is disengaged is many, and color is dark, and smell is not obvious, and meat fiber is coarse.
Claims (4)
1. the natural gas flameless catalytic combustion baking box of a near zero pollutant discharge; It is characterized in that described flameless catalytic combustion baking box casing is made by stainless steel, the casing front of baking box is provided with dodge gate, has glass peephole, inside to be provided with one deck stainless steel porous plate in the middle of the dodge gate, and bottom is placed oil collection plate; Top and a side respectively are provided with a ventilation ball valve, and the bottom is provided with the air chimney interface; The external flameless catalytic combustion device in a side of casing, casing top are provided with circle wheel meat frame, and circle wheel meat frame turning handle is installed by bearing by casing top cover central authorities, and circle wheel meat frame turning handle is central fastening with circle wheel meat frame.
2. according to the natural gas flameless catalytic combustion baking box of the described near zero pollutant discharge of claim 1; It is characterized in that described oil collection plate divides two-layer up and down, levels staggers.
3. according to the natural gas flameless catalytic combustion baking box of the described near zero pollutant discharge of claim 1; It is characterized in that, hang girder steel on the described circle wheel meat frame.
4. according to the natural gas flameless catalytic combustion baking box of the described near zero pollutant discharge of claim 1; It is characterized in that, the outlet of described flameless catalytic combustion device is connected with the casing air inlet, the inlet end of flameless catalytic combustion device connects the mixed gas supply device, outlet is connected this mixed gas supply device with gas meter by frequency-variable controller, air blast and mass air flow sensor polyphone, mass air flow sensor outlet, and the two-way output that mass air flow sensor and gas meter are connected to the two-way current regulator power supply upward constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201219102U CN201612526U (en) | 2010-03-02 | 2010-03-02 | Natural gas flameless catalytic combustion oven with approximate zero pollutant discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201219102U CN201612526U (en) | 2010-03-02 | 2010-03-02 | Natural gas flameless catalytic combustion oven with approximate zero pollutant discharge |
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| Publication Number | Publication Date |
|---|---|
| CN201612526U true CN201612526U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201219102U Expired - Fee Related CN201612526U (en) | 2010-03-02 | 2010-03-02 | Natural gas flameless catalytic combustion oven with approximate zero pollutant discharge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651720A (en) * | 2013-12-31 | 2014-03-26 | 涂兴家 | Barbecue oven |
-
2010
- 2010-03-02 CN CN2010201219102U patent/CN201612526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651720A (en) * | 2013-12-31 | 2014-03-26 | 涂兴家 | Barbecue oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20190302 |