CN105146701A - Tobacco curing room using natural gas as fuel - Google Patents
Tobacco curing room using natural gas as fuel Download PDFInfo
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- CN105146701A CN105146701A CN201510393203.6A CN201510393203A CN105146701A CN 105146701 A CN105146701 A CN 105146701A CN 201510393203 A CN201510393203 A CN 201510393203A CN 105146701 A CN105146701 A CN 105146701A
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- flue
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Abstract
The invention relates to the technical field of tobacco curing equipment, in particular to a tobacco curing room using natural gas as fuel. The tobacco curing room comprises a hot air chamber with a heating device and a tobacco curing chamber with a tobacco hanging frame, a circulating flue is formed between the tobacco curing chamber and the hot air chamber through an air inlet and an air outlet, the heating device is connected with a heat exchange pipe, a first fan is arranged at a position, close to the air inlet, on the lower portion of the hot air chamber, a second fan which blows air upwards is arranged at a position, opposite to the first fan, on the lower portion of the tobacco curing chamber, the tobacco hanging frame comprises vertical rods which are arranged vertically, and cross rods which are arranged transversely, multiple clamping connection portions in clamping connection with the cross rods are arranged on the vertical rods, and the heating device uses the natural gas as fuel. Height of each cross rod is adjustable after the clamping connection portions are arranged, so that a user can hang and collect tobacco leaves more conveniently; the heating device uses the natural gas as fuel, so that environment protection and cleanliness are realized; the tobacco curing room has the advantages of being clean, sanitary, safe, low in cost, high in heating efficiency and convenience in use.
Description
Technical field
The present invention relates to the technical field of flue-cured tobacco equipment, more specifically, relate to a kind of tobacco flue-curing house of gas fuel.
Background technology
Tobacco flue-curing house is indispensable basic equipment in cured tobacco production.Tobacco flue-curing house, after interior baking modulation, just shows the distinctive color of flue-cured tobacco, type, becomes the quality raw materials meeting cigarette industry needs.Its general principle is after tobacco leaf is heated, and the moisture in tobacco leaf is discharged, and is discharged outside tobacco flue-curing house, thus makes tobacco leaf scalding, drying after moisture vaporization.
Existing smoke hanging shelf can not adjust, make user hang tobacco leaf and collect tobacco leaf process in inconvenient.And be generally using coal as fuel, its thermal losses is large, and effective utilization rate of thermal energy is low, not easily extensive use.
Summary of the invention
The present invention, for overcoming at least one defect described in above-mentioned prior art, provides a kind of tobacco flue-curing house of gas fuel, and its structure is simple, easy to use, and using natural gas as fuel, environment protection clean.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of tobacco flue-curing house of gas fuel, wherein, comprise the hot air chamber being provided with heater, the flue-cured tobacco room being provided with smoke hanging shelf, form cycle flue by air inlet and return air inlet between flue-cured tobacco room and hot air chamber, described heater connects heat exchanger tube;
Described hot air chamber bottom is provided with the first blower fan near air inlet, and described bottom, flue-cured tobacco room and the opposite position of the first blower fan are provided with the second blower fan to up-draught; Described smoke hanging shelf comprises the vertical montant of setting, the cross bar of horizontally set, and described montant is provided with the Access Division of multiple clamping cross bar; Described heater is gas fuel heater.
In the present invention, air inlet aimed at by the first blower fan, make hot blast blow to flue-cured tobacco room from hot air chamber, and the sidewall bottom of flue-cured tobacco room is located at by the second blower fan, makes to accelerate to rise from the hot blast of the first blower fan blowout in side-walls, then is back in hot air chamber by return air inlet.And gas fuel heater is using natural gas as fuel, environment protection clean, has the features such as sanitation and hygiene, safety, cheapness, the efficiency of heating surface be high, easy to use.
In the present invention, be air-flow ascending manner tobacco flue-curing house, the air of flue-cured tobacco indoor moves from bottom to top and carries out damp and hot exchange with tobacco leaf; Certainly, change the position of blower fan and can change into airflow descending type compression tobacco flue-curing house, the air of flue-cured tobacco indoor is moved from top to bottom and carries out damp and hot exchange with tobacco leaf, the conversion of above-mentioned position is also in protection scope of the present invention.In addition, also can reduce the quantity of blower fan according to actual needs, as long as ensure the circulating effect of air.
In addition, in the present invention, room body can adopt brick mix structure, and the benefit of brick mix structure is that its rugged construction is stablized, and can resist various abiogenous accident, and the carrying out baking of tobacco leaf Absorbable organic halogens is preserved.
In addition, the length due to tobacco leaf is generally 60-70cm, and the number of plies that cross bar is arranged is 3-4 layer.
And montant is provided with the Access Division of multiple clamping cross bar, during use, tobacco leaf is fixedly hung on cross bar, and after being provided with Access Division, cross bar can be connected to the position of differing heights on montant, adapt to the requirement of different size and size tobacco leaf, made tobacco leaf drop on the ground after fixation.In addition, Height Adjustable owing to being provided with Access Division rear transverse rod, make user hang tobacco leaf and collect tobacco leaf process in convenient, during as hung tobacco leaf, first cross bar can be connected to the position meeting user's height, after fixedly mounting, then this cross bar is adjusted to other height and position by instrument, the process collecting tobacco leaf is also similar.
Further, be the inclined-plane of the first blower fan wind direction far-end higher than near-end bottom described flue-cured tobacco room.The design of flue-cured tobacco room bottom bevel better can guide the rising of flue gas stream.
Further, described Access Division is around being located at montant circumferential exterior.More convenient during the installation cross bar being like this, the position of cross bar can be regulated at any time.
Further, described flue-cured tobacco room sidewall is provided with moisture exhausting port.Described moisture exhausting port is provided with dehumidifier.Along with the raising of baking efficiency, flue-cured tobacco room arranges corresponding moisture exhausting port and dehumidifier can improve hydrofuge performance.
Further, the air delivering pipeline that described heater comprises the natural gas storage tanks be located in hot air chamber, is connected with natural gas storage tanks, air delivering pipeline is provided with manually-operated gate, and air delivering pipeline is also provided with a point control valve, divide control valve to connect heating element by pipeline, heating element connects heat exchanger tube.
Natural gas storage tanks can natural gas-storing, during heating, opens manually-operated gate, power turn-on switch, then closes ignition knob simultaneously, and a point control valve is opened, and start heating, the heat that heating element sends is delivered to heat exchanger tube.
Compared with prior art, beneficial effect is: the flue gas stream of the present invention by ascending manner and the setting of cooperation flue gas water conservancy diversion, thus promotes flue gas recirculation speed, and the efficiency of tobacco flue-curing and quality are improved significantly.And after being provided with Access Division, cross bar can be connected to the position of differing heights on montant, adapt to the requirement of different size and size tobacco leaf, made tobacco leaf drop on the ground after fixation.In addition, Height Adjustable owing to being provided with Access Division rear transverse rod, make user hang tobacco leaf and collect tobacco leaf process in convenient.
And gas fuel heater is using natural gas as fuel, environment protection clean, has the features such as sanitation and hygiene, safety, cheapness, the efficiency of heating surface be high, easy to use.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is smoke hanging shelf structural representation of the present invention.
Fig. 3 is montant cross section structure schematic diagram of the present invention.
Fig. 4 is heater schematic diagram of the present invention.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent; In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.Describe position relationship in accompanying drawing only for exemplary illustration, the restriction to this patent can not be interpreted as.
As Figure 1-3, a tobacco flue-curing house for gas fuel, wherein, comprises the hot air chamber 2 being provided with heater 4, the flue-cured tobacco room 1 being provided with smoke hanging shelf 3, form cycle flue by air inlet 5 and return air inlet 6 between flue-cured tobacco room 1 and hot air chamber 2, heater 4 connects heat exchanger tube 7;
Hot air chamber 2 bottom is provided with the first blower fan 9 near air inlet 5, and the opposite position of bottom, flue-cured tobacco room 1 and the first blower fan 9 is provided with the second blower fan 91 to up-draught; Smoke hanging shelf 3 comprises the vertical montant 31 of setting, the cross bar 32 of horizontally set, and montant 31 is provided with the Access Division 311 of multiple clamping cross bar 32; Heater 4 is gas fuel heater.
In the present embodiment, air inlet 5 aimed at by first blower fan 9, make hot blast blow to flue-cured tobacco room 1 from hot air chamber 2, and the sidewall bottom of flue-cured tobacco room 1 is located at by the second blower fan 91, make the hot blast blown out from the first blower fan 9 accelerate to rise in side-walls, then be back in hot air chamber 2 by return air inlet 6.
And montant 31 is provided with the Access Division 311 of multiple clamping cross bar, during use, tobacco leaf is fixedly hung on cross bar 32, and after being provided with Access Division 311, cross bar can be connected to the position of differing heights on montant, adapt to the requirement of different size and size tobacco leaf, made tobacco leaf drop on the ground after fixation.In addition, Height Adjustable owing to being provided with Access Division 311 rear transverse rod, make user hang tobacco leaf and collect tobacco leaf process in convenient, during as hung tobacco leaf, first cross bar can be connected to the position meeting user's height, after fixedly mounting, then this cross bar is adjusted to other height and position by instrument, the process collecting tobacco leaf is also similar.
In the present embodiment, be the inclined-plane of the first blower fan 9 wind direction far-end higher than near-end bottom flue-cured tobacco room 1.Access Division 311 is around being located at montant 31 circumferential exterior.Flue-cured tobacco room 1 sidewall is provided with moisture exhausting port 10.Moisture exhausting port 10 is provided with dehumidifier 11.
The design of flue-cured tobacco room 1 bottom bevel better can guide the rising of flue gas stream.Access Division 311 is more convenient around being located at when montant 31 circumferential exterior makes to install cross bar, can regulate the position of cross bar at any time.Along with the raising of baking efficiency, flue-cured tobacco room 1 arranges corresponding moisture exhausting port 10 and dehumidifier 11 can improve hydrofuge performance.
As in Fig. 4, the air delivering pipeline 42 that heater 4 comprises the natural gas storage tanks 41 be located in hot air chamber 2, is connected with natural gas storage tanks 41, air delivering pipeline 42 is provided with manually-operated gate 43, air delivering pipeline 42 is also provided with point control valve 44, divide control valve 44 to connect heating element 45 by pipeline, heating element 45 connects heat exchanger tube 7.
Natural gas storage tanks 41 can natural gas-storing, during heating, opens manually-operated gate 43, power turn-on switch, then closes ignition knob simultaneously, and a point control valve 44 is opened, and start heating, the heat that heating element 45 sends is delivered to heat exchanger tube.
Operation principle: after heat exchanger tube 7 is heated, flue gas in hot air chamber 2 around heat exchanger tube 7 is heated, then the first blower fan 9 rotates the flue gas of rear formation negative pressuren zone attraction heating and enters into flue-cured tobacco room 1 by air inlet 5, under the guide functions on inclined-plane 8, flue gas rises fast, second blower fan 91 accelerates the rate of climb, tobacco leaf in smoke hanging shelf 3 is toasted, moisture in tobacco leaf is evaporated, moisture after vaporization is discharged by auxiliary moisture exhausting port 10, remaining flue gas is then got back to hot air chamber 2 by return air inlet 6 and is again heated by heat-transfer pipe 7, the steam of the non-emptying of part is also discharged by the moisture exhausting port (not shown) of hot air chamber simultaneously, then the flue gas heated again attract by negative pressuren zone, thus cycle flue is defined between hot air chamber 2 and flue-cured tobacco room 1, tobacco leaf is constantly toasted.Because the moisture exhausting port of auxiliary moisture exhausting port 10 and hot air chamber has discharged partial fume, therefore in hot air chamber, stably can supplement flue gas, make the exhaust gas volumn in tobacco flue-curing house and temperature can both keep stable.
In the present embodiment, the Design calcu-lation of heating equipment
Maximum calorific requirement
In the tobacco leaf maximum dehydration stage, baking calorific requirement is maximum.Calculate the dress smoke which mq of barn according to barn cigarette-filling house volume and smoke filling density, tobacco leaf maximum water holding capacity is Wq, and maximum dehydrating speed is Ws, then unit interval maximum fluid loss Sp=mqwqws; Environmentally condition, h-d figure is utilized to find water capacity dk, the dp of air inlet cold air and moisture exhausting port hot-air, enthalpy hkc, hp, dry air amount Gkg=Sp/ (dp-dk) needed for unit interval hydrofuge=mqwqws/ (dp-dk), maximum efficient heat (moisture evaporation maximum belt walks heat) Qz=GKg (hp-hkc)=(hp-hkc) mqwqws/ (dp-dk) of unit interval; Maximum calorific requirement Qgr=Qz/ η=(hp-hkc) mqwqws/ (dp-dk) η can be extrapolated by the thermal efficiency η of barn
formula (1).
Heat exchange area
The size of heat exchange area is relevant with the thermal conductivity factor of the maximum calorific requirement of barn and heat exchanger materials, the ratio that heat exchanger area of dissipation (Ag) is maximum calorific requirement and radiating tube heat transfer coefficient (Kgt) and cigarette inner tube smoke mean temperature (tej) product: Ag=Qgr/ (Kgt.tej)
formula (2).
Maximum consumption fuel quantity
After trying to achieve the maximum calorific requirement (i.e. the maximum heating load of burner) of unit interval according to design hothouse baking ability, barn unit interval maximum consumption fuel quantity (Gpm) can be calculated.
Gpm=Qgr/Qnet.ar
(3), in formula Qgr be the barn unit interval maximum calorific requirement KJ/h, Qnet.ar be the calorific capacity KJ/Kg of fuel.
Bulk curing barn tobacco leaf calorific requirement calculates:
Maximum calorific requirement
Bulk curing barn cigarette-filling house specification is 800cm × 270cm × 350cm, and cigarette-filling house's volume is 75.6m
3: smoke filling density is 59.52 ~ 66.14 ㎏/m
3, for calculating the maximum heating load of barn, get its maximum 66.14 ㎏/m here
3; The dress smoke which of bulk curing barn is the long-pending of cigarette-filling house's volume and smoke filling density: 75.6m
3× 66.14 ㎏/m
3=5000kg
The water content of fresh tobacco leaf is generally 80-90%, gets maximum W here
q=90%; Moisture content in leaves vaporization speed capping W during large hydrofuge
s=2.5%; The water capacity capping d of the waste gas that moisture exhausting port is discharged
p=0.046kg/kg dry air; The water capacity that air intake hole enters the cold air of barn removes the limit d
k=0.021kg/kg dry air; By looking into h-d figure, known discharge hot-air and the enthalpy entering cold air, hp=134.4kJ/kg, h
kc=79.8kJ/kg: the thermal efficiency general about 40% of bulk curing barn.Bring above each value into formula (1), the maximum calorific requirement of bulk curing barn can be calculated: Qgr=609749.45kJ/h.
In the present embodiment, using natural gas as fuel,
The fuel value of natural gas is about 8.4 × 10^7 Jiao/cubic meter,
1 liter=0.001 cubic metre,
One liter of natural gas produces heat,
Q=8.4 × 10^7*0.001=8.4 × 10^4 joule,
Natural gas density is 420-460Kg/ cubic meter,
Namely the calory burning of natural gas is: 182.6-200kJ/Kg
Can be regarded as unit interval consumption natural gas is 3048.75-3339.26Kg/h by formula (3) Gpm=Qgr/Qnet.ar.In the present embodiment, in tobacco flue-curing house, need the tobacco leaf fresh tobacco leaves of general 15000 jin being roasted into 1500 jin.
Tobacco flue-curing presses upper, middle and lower three positions average 6 days, and discharge 90% moisture content in leaves, then the dry cigarette of per kilogram needs amount of natural gas to be (3048.75-3339.26Kg/h)/(48h × 0.6 × 0.9)=117.62-128.83Kg.
Therefore, the dry cigarette of per kilogram needs natural gas is probably 117.62-128.83Kg.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (7)
1. the tobacco flue-curing house of a gas fuel, it is characterized in that, comprise the hot air chamber (2) being provided with heater (4), the flue-cured tobacco room (1) being provided with smoke hanging shelf (3), form cycle flue by air inlet (5) and return air inlet (6) between flue-cured tobacco room (1) and hot air chamber (2), described heater (4) connects heat exchanger tube (7);
Described hot air chamber (2) bottom is provided with the first blower fan (9) near air inlet (5), and described (1) bottom, flue-cured tobacco room and the opposite position of the first blower fan (9) are provided with the second blower fan (91) to up-draught; Described smoke hanging shelf (3) comprises the vertical montant (31) of setting, the cross bar (32) of horizontally set, and described montant (31) is provided with the Access Division (311) of multiple clamping cross bar (32); Described heater (4) is gas fuel heater.
2. the tobacco flue-curing house of a kind of gas fuel according to claim 1, is characterized in that: described bottom, flue-cured tobacco room (1) is the inclined-plane of the first blower fan (9) wind direction far-end higher than near-end.
3. the tobacco flue-curing house of a kind of gas fuel according to claim 2, is characterized in that: described Access Division (311) is around being located at montant (31) circumferential exterior.
4. the tobacco flue-curing house of a kind of gas fuel according to claim 3, is characterized in that: described flue-cured tobacco room (1) sidewall is provided with moisture exhausting port (10).
5. the tobacco flue-curing house of a kind of gas fuel according to claim 4, is characterized in that: described moisture exhausting port (10) is provided with dehumidifier (11).
6. according to the tobacco flue-curing house of the arbitrary described a kind of gas fuel of claim 1 to 5, it is characterized in that: the air delivering pipeline (42) that described heater (4) comprises the natural gas storage tanks (41) be located in hot air chamber (2), is connected with natural gas storage tanks (41), air delivering pipeline (42) is provided with manually-operated gate (43), air delivering pipeline (42) is also provided with a point control valve (44), divide control valve (44) to connect heating element (45) by pipeline, heating element (45) connects heat exchanger tube (7).
7., according to the tobacco flue-curing house of the arbitrary described a kind of gas fuel of claim 1 to 5, it is characterized in that: the dry cigarette of per kilogram needs natural gas to be 117.62-128.83Kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393203.6A CN105146701A (en) | 2015-07-07 | 2015-07-07 | Tobacco curing room using natural gas as fuel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510393203.6A CN105146701A (en) | 2015-07-07 | 2015-07-07 | Tobacco curing room using natural gas as fuel |
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| CN105146701A true CN105146701A (en) | 2015-12-16 |
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| CN201510393203.6A Pending CN105146701A (en) | 2015-07-07 | 2015-07-07 | Tobacco curing room using natural gas as fuel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110447943A (en) * | 2019-08-15 | 2019-11-15 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of method that natural gas direct combustion type heats tobacco flue-curing house and junior tobacco leaf |
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| US20030145867A1 (en) * | 2002-02-01 | 2003-08-07 | Bokelman Gordon Herman | Apparatus and method for air curing tobacco |
| US20070003899A1 (en) * | 2005-07-01 | 2007-01-04 | Philip Morris Usa Inc. | Controlled ventilation air curing system |
| CN101317689A (en) * | 2008-07-22 | 2008-12-10 | 梅娟 | Baking apparatus |
| CN201595169U (en) * | 2010-02-18 | 2010-10-06 | 湖北省烟草公司襄樊市公司 | Tobacco loading frame for dense tobacco flue-curing chamber |
| CN102415608A (en) * | 2011-11-17 | 2012-04-18 | 陕西省烟草公司延安市公司 | Natural gas heating circulating airflow tobacco flue-curing chamber |
| CN203676098U (en) * | 2014-02-18 | 2014-07-02 | 山东百特机械设备有限公司 | Tobacco hanging frame of flue-curing barn |
| CN203986052U (en) * | 2014-08-13 | 2014-12-10 | 中国烟草总公司重庆市公司丰都分公司 | Natural gas barn |
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2015
- 2015-07-07 CN CN201510393203.6A patent/CN105146701A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030145867A1 (en) * | 2002-02-01 | 2003-08-07 | Bokelman Gordon Herman | Apparatus and method for air curing tobacco |
| US20070003899A1 (en) * | 2005-07-01 | 2007-01-04 | Philip Morris Usa Inc. | Controlled ventilation air curing system |
| CN101317689A (en) * | 2008-07-22 | 2008-12-10 | 梅娟 | Baking apparatus |
| CN201595169U (en) * | 2010-02-18 | 2010-10-06 | 湖北省烟草公司襄樊市公司 | Tobacco loading frame for dense tobacco flue-curing chamber |
| CN102415608A (en) * | 2011-11-17 | 2012-04-18 | 陕西省烟草公司延安市公司 | Natural gas heating circulating airflow tobacco flue-curing chamber |
| CN203676098U (en) * | 2014-02-18 | 2014-07-02 | 山东百特机械设备有限公司 | Tobacco hanging frame of flue-curing barn |
| CN203986052U (en) * | 2014-08-13 | 2014-12-10 | 中国烟草总公司重庆市公司丰都分公司 | Natural gas barn |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110447943A (en) * | 2019-08-15 | 2019-11-15 | 深圳中燃哈工大燃气技术研究院有限公司 | A kind of method that natural gas direct combustion type heats tobacco flue-curing house and junior tobacco leaf |
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