CN102944003A - Heat supply system combining tobacco seedling with tobacco baking - Google Patents
Heat supply system combining tobacco seedling with tobacco baking Download PDFInfo
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- CN102944003A CN102944003A CN2012104051624A CN201210405162A CN102944003A CN 102944003 A CN102944003 A CN 102944003A CN 2012104051624 A CN2012104051624 A CN 2012104051624A CN 201210405162 A CN201210405162 A CN 201210405162A CN 102944003 A CN102944003 A CN 102944003A
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 69
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 170
- 238000010438 heat treatment Methods 0.000 claims abstract description 106
- 239000003245 coal Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
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- 239000003546 flue gas Substances 0.000 claims description 18
- 125000004122 cyclic group Chemical group 0.000 claims description 17
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
本发明公开了一种烟草育苗与烟叶烘烤联合供热系统，包括锅炉房部分、育苗大棚部分以及集中供热烤房部分，锅炉房部分包括锅炉本体、预热器、配电柜、上煤机、分气缸、软水器、软水箱、给水泵，育苗大棚部分包括气水换热器、循环水泵、分水器、入水总管、入水分管、出水总管、循环水箱，集中供热烤房部分包括蒸汽主管道、蒸汽喷头、电动球阀、蒸汽换热器、手动阀、滤污器、疏水阀、排污阀、回水主管道。本发明能有效地降低烟草育苗与烟叶烘烤这两个生产过程的设备投资与运行成本，提高烟苗生长质量与烟叶烘烤质量，减少燃煤消耗量以及燃煤污染物的排放，同时提高育苗与烤烟这两个过程的生产效率。
The invention discloses a combined heat supply system for tobacco seedling raising and tobacco leaf baking, which includes a boiler room, a seedling growing greenhouse and a centralized heating barn. The boiler room includes a boiler body, a preheater, a power distribution cabinet, a coal feeding Machine, sub-cylinder, water softener, soft water tank, water supply pump, the part of the nursery greenhouse includes air-water heat exchanger, circulating water pump, water separator, water inlet main pipe, water inlet pipe, water outlet main pipe, circulating water tank, and the central heating barn part includes Steam main pipeline, steam nozzle, electric ball valve, steam heat exchanger, manual valve, sewage filter, steam trap, sewage valve, main return water pipeline. The invention can effectively reduce the equipment investment and operating cost of the two production processes of tobacco seedling cultivation and tobacco leaf curing, improve the quality of tobacco seedling growth and tobacco leaf curing, reduce coal consumption and discharge of coal-burning pollutants, and simultaneously improve The production efficiency of the two processes of seedling raising and flue-cured tobacco.
Description
Technical field
The invention belongs to tobacco seedling and tobacco leaf baking facility technology field, more specifically, relate to a kind of tobacco seedling and tobacco flue-curing combining heating system.
Background technology
In the leaf tobacco production process, tobacco seedling and tobacco flue-curing are two very important links.Tobacco seedling is to cultivate optimum period, of the right age, anosis, healthy and strong, shape size suitable cigarette seedling as purpose, and it is finished smoothly whole tobacco production process and plays key effect.The tobacco seedling technology is divided into according to coverage mode: raise seedling in greenhouse, little shed are grown seedlings and grow seedlings in land three major types then is divided into according to the grow seedling nutritional body: seedlings nursing plate is grown seedlings, feeding block seedlings raising, grow seedlings in the nutrition pond and nutritional bag four large classes.Modern agriculture is take intensive, economized and suitability for industrialized production as aim, so with regard to tobacco seedling, modern warmhouse booth is grown seedlings becomes main flow trend, it is grown seedlings with respect to little shed and there is many-sided superiority on land growing seedlings, and topmost 2 are exactly: intensive and Modulatory character.At present, the nutrient solution floating plate seedling raising mannerses that adopt in the seedling raising greenhouse more, i.e. several nursery ponds of proper alignment in seedling raising greenhouse, the nutrient solution of the injection certain altitude pond in, a plurality of floating plates of growing seedlings float on the seedling raising manners on the liquid of growing seedlings, and this patent is also mainly for this seedling raising manners.Tobacco Leaf Curing and technique have directly determined the quality of tobacco leaf, and the widest flue-cured tobacco technology of domestic application is bulk curing barn flue-cured tobacco technology at present, and it is the basis of implementing " tobacco modern agriculture ".Applying of bulk curing barn improved China's tobacco flue-curing level, plants per family the cigarette area to improving, and progressively forms intensive cropping and specialized baking, played obvious facilitation.But along with the development of tobacco agriculture, it is not fully up to expectations that existing bulk curing barn all seems in many aspects, and major defect comprises: 1, every barn all is furnished with a hot-blast stove, all needs to join a fireman, thereby has improved construction cost and cost of labor; 2, the barn temperature-controlled process is single, thereby temperature control precision is not high; 3, the pollution that caused by coal burning thing can't centralized Control, so pollution on the environment is larger.For more above-mentioned shortcomings, the central heating intensive baking room becomes a Hot spots for development now, and it can solve some problems that existing bulk curing barn exists, and is a new direction of intensive baking room development.
Because it is outdoor that tobacco seedling culture canopy is arranged in, so nursery temperature is determined that by ambient temperature and in some area, ambient temperature is all lower between the spring nursery stage, usually all below 10 ℃, this will have a huge impact the growth cycle of cigarette seedling.Tobacco seed is sprouted needs suitable temperature, generally is advisable with 25 ℃～28 ℃, minimum 11 ℃～12 ℃, the highest 30 ℃.Under 28 ℃～30 ℃ conditions, it is fast to germinate, but irregular; The germination above 30 ℃ is slowed down, and surpasses 35 ℃ of seeds and loses viability; If be lower than 12 ℃, it is slow then to sprout, and crosses to hang down freeze injury will occur.In view of above each factor, in order to improve cigarette seedling survival rate, shorten the tobacco seedling growth cycle, improve the tobacco seedling growth quality, need in seedling raising greenhouse, install heating equipment additional.At present, the booth heating technology of domestic and international application mainly comprises: hot-blast stove heating, electric heating tube heating, heat pump heating and the heating of a kind of novel hot water pipeline system.1, hot-blast stove heating namely utilizes fire coal or fuel gas hot-blast stove by the air in the heating of heat exchange in the heat exchange cover booth; 2, electric heating tube heating, the air in the heat heating booth that distributes when namely utilizing the electric heating tube energising; 3, heat pump heating, the air in the heat heating booth that produces when namely utilizing heat pump work; 4, hot water pipeline system heating, namely by arrange some hot water pipelines in booth, by the air in the hot water heating booth that flows in the pipeline, its thermal source is generally normal-pressure hot-water boiler.Their feature all is directly to heat air in the booth, this class mode is fine for the booth heating effect of routine, but the heating effect for nutrient solution floating plate seedling raising greenhouse is just not obvious, because the heat of heated air is difficult to pass floating plate and arrives nutrient solution, thereby be difficult to the heating of cigarette shoot root section.In tobacco flue-curing and tobacco seedling combining heating system, contained a kind of novel booth heating system, can well address this problem.
The central heating intensive baking room has many variations with respect to traditional intensive baking room: 1, because central heating equipment is whole curing barn cluster heat supply, so unlike traditional single seat bulk curing barn, be installed in the continuous hot air chamber of cigarette-filling house, but place separately outside the barn; 2, for the steam that heating equipment is produced, hot flue gas etc. are fed to each barn, need to be exported to the unified heating network of each barn design and installation from heating equipment; 3, at every indoor heating furnace and air blast of no longer arranging of bulk curing barn; 4, for making separately baking process (because the quality of tobacco of each barn, quantity, water content, maturity etc. all have difference) independently of each barn position, guarantee baking quality, each barn still need keep circulating fan, shutter, moistureproof window, controller etc.Aspect the heating equipment selection, comprise: hot-water boiler, steam boiler, heat conducting oil boiler and hot-blast stove, they respectively have pluses and minuses: 1, the hot-water boiler running temperature is low, and security is good, low price, but the temperature of heat exchange medium (85-95 ℃) is lower, reaching under the identical heating demand prerequisite, must strengthen heat exchange area, the heat exchanger cost obviously increases, the Load Distribution of each barn is difficult for very even hot-water boiler must use water circulating pump, and power consumption increases; 2, the steam boiler heating efficiency is high, and steam parameter is stable, and it is comparatively even that the barn Load Distribution can reach, and steam boiler requires height to the fireman, and operation maintenance is had relatively high expectations; 3, heat conducting oil boiler is changed conduction oil after need to moving a period of time, and operating cost is high; 4, hot air furnace heat exchange hot air cleaning later is pollution-free can not produce dust stratification to pipeline and radiator, but the coefficient of heat transfer is lower, and the controllability when heating demand changes is relatively poor.
Summary of the invention
Defective for prior art, the object of the present invention is to provide a kind of tobacco seedling and tobacco flue-curing combining heating system, it can reduce equipment investment and the operating cost of tobacco seedling and these two production processes of tobacco flue-curing effectively, improve tobacco seedling growth quality and baking quality of tobacco, reduce the discharging of coal-fired consumption and pollution that caused by coal burning thing, improve simultaneously the production efficiency of growing seedlings with these two processes of flue-cured tobacco.
For achieving the above object, the invention provides a kind of tobacco seedling and tobacco flue-curing combining heating system, comprise the boiler room part, seedling raising greenhouse part and central heating barn part, the boiler room part comprises boiler body, preheater, power distribution cabinet, coaling machine, sub-cylinder, water softener, softened water tank, feed pump, seedling raising greenhouse partly comprises air-water heat exchanger, water circulating pump, water knockout drum, enter the supply mains, entry is in charge of, outfall sewer, cyclic water tank, the central heating barn partly comprises the main steam header road, steam jet, electrical ball valve, vapor heat exchanger, hand-operated valve, catch-basin, drain valve, blowoff valve, the backwater trunk line, coaling machine is used for fire coal is sent into boiler body, boiler body is used for burning coal, so that boiler feedwater is heated, produce steam, power distribution cabinet is used for each power unit power supply to boiler body, sub-cylinder is used for the steam that boiler body produces is dispensed into air-water heat exchanger and main steam header road, and remaining steam is provided for life heating, cyclic water tank is used for providing the required recirculated water of heating of growing seedlings, the recirculated water that air-water heat exchanger is used for cyclic water tank is provided heats, and the water after will heating is sent in the water circulating pump, water circulating pump is used to the water extraction after the heating to supply circulation power, and the water after will heating is sent into water knockout drum, water knockout drum is provided with a plurality of delivery ports, moisture after it is used for heating is fitted on each seedling raising greenhouse, the delivery port of water knockout drum links to each other with the supply mains that enters of pipe section, water after being used for heating is transported to into the supply mains, entering the supply mains enters in the middle part of the side wall of seedling raising greenhouse, and traverse each nursery pond, moisture after it is used for heating is fitted on each bar entry and is in charge of, entry is in charge of outlet and is linked to each other with outfall sewer, water after being used for heating is transported to outfall sewer, outfall sewer links to each other with cyclic water tank, water after being used for heating sends back to cyclic water tank, entering supply mains and outfall sewer be arranged in parallel and is positioned on the same perpendicular, and whole nursery pond is divided into symmetrical two parts, air-water heat exchanger also is used for the steam of sub-cylinder dispensing is carried out heat release, and the water that produces after the heat release is transported to softened water tank, water softener is used to softened water tank that demineralized water is provided, softened water tank is used for water is transported to feed pump, feed pump is used for water is transported to preheater, preheater is used for water is carried out preheating, and the water after the preheating is transported to boiler body, the main steam header road is used for the steam of sub-cylinder dispensing is transported to steam jet and electrical ball valve, steam jet is used for that steam is sprayed into barn and hangs smoke-box, electrical ball valve is regulated the temperature of barn heating room air for the quantity of steam that enters vapor heat exchanger by control, vapor heat exchanger is used for by steam the air in the barn heating clamber being heated, and the water that forms after the steam heat release passed through hand-operated valve successively, catch-basin, drain valve and backwater trunk line are transported to softened water tank, and blowoff valve is used for will remaining in the water discharge of system after combining heating system quits work.
The boiler room part also comprises deduster, smoke exhaust fan, chimney, slag remover, preheater also is used for the flue gas that the boiler body coal combustion is later and is sent to deduster, deduster is used for removing the dust of flue gas, and the flue gas after the dedusting is sent to smoke exhaust fan, smoke exhaust fan is used for by chimney flue gas being discharged, and slag remover is used for removing the coal ash after boiler body burns.
Growing seedlings season, sub-cylinder is dispensed into air-water heat exchanger with steam, and starting the tobacco seedling process, in tobacco roasting season, sub-cylinder is dispensed into the main steam header road with steam, to start the tobacco roasting process.
The quantity of water circulating pump is two, wherein work, and another is for subsequent use.
Only has row's nursery pond in the seedling raising greenhouse, each nursery pond traverses the seedling raising greenhouse cross direction, for the nursery pond that enters supply mains and outfall sewer right side, the end that entry is in charge of with enter the supply mains and link to each other, the other end that entry is in charge of links to each other with outfall sewer, entry be in charge of with enter part that the supply mains links to each other perpendicular to the bottom of nursery pond and the sidewall of being close to nursery pond to downward-extension, and to the bending of the center of nursery pond, entry be in charge of the part that links to each other with outfall sewer also perpendicular to the bottom of nursery pond and the sidewall of being close to nursery pond to downward-extension, and to the bending of the center of nursery pond, the remainder that entry is in charge of is positioned at the bottom of nursery pond, and with the whole right side of circuitous mode through nursery pond, 1/4 and 3/4 place that two sidepieces that are positioned at the nursery pond bottom lay respectively at the nursery pond width is in charge of in entry, even distribution with the liquid temp of growing seedlings in the assurance nursery pond, for the nursery pond that enters supply mains and outfall sewer right side, the arrangement that entry is in charge of with enter the identical of supply mains and outfall sewer left side.
By the above technical scheme that the present invention conceives, compared with prior art, the present invention has following beneficial effect:
(1) reduced coal consumption:
Central heating mode of the present invention adopts same heating equipment that barn between a bulk curing barn many is carried out heat supply simultaneously, stable and all the time at high temperature operation of combustion of industrial boiler, combustion case is better than small coal furnace, the boiler of central heating is provided with economizer the waste heat in the flue gas is reclaimed before flue gas is discharged, reduce flue gas heat and run off.The thermal efficiency of Industrial Boiler is about 75%, and higher than the general miniature coal efficiency of furnace, under full load situation, the central heating barn can reduce by 20% coal consumption.
(2) automaticity is high:
Lower tens barns of central heating mode of the present invention are all by same heating equipment heat supply, and tens barns only need two firemans to get final product.Do not need fully manually to look after in real time, improved the automaticity of Tobacco Leaf Curing, reduce human cost.
(3) the Temperature and Humidity Control precision is high:
The automatic control system of central heating bulk curing barn is according to the humiture data that record, and the automatic steam regulation flow of control Solenoid ball valve is with control barn temperature.Control accuracy is higher by artificial coal and the control temperature of making a fire than conventional bulk curing barn.
(4) baking quality of tobacco is high:
Owing to adopted novel heat-supplying mode and temperature and humidity control system accurately, can guarantee that the whole bake process of tobacco leaf carries out according to predefined program, significantly promote baking quality of tobacco.
(5) the booth heat supply efficiency is high:
Laid novel hot water pipe network system in tobacco seedling culture canopy, it heats air and the interior nutrient solution of nursery pond in the booth simultaneously, has guaranteed that cigarette shoot root section also can reach desired temperature, so its heating effect is good, heat supply efficiency is high.
(6) environmental protection:
The industrial steam boiler of central heating of the present invention adopts high-efficiency wet-type dust collector, and more than the efficiency of dust collection to 95%, desulfuration efficiency can reach more than 70%.
(7) long service life, equipment cost is low:
Central heating equipment was grown seedlings to the booth heating in spring, and summer, then to barn heat supply flue-cured tobacco, same equipment divided the coupling in season, improved the equipment its usage economy; It is heat exchanger that the main body of central heating flue-cured tobacco equipment forms, heating boiler, barn humiture automatic control system; If adopt the steel combined with aluminum finned heat exchanger, its life-span can reach about 20 years, and boiler also can use more than 20 years; Than conventional bulk curing barn, the steam central heating it should be noted that when boiler operatiopn will often, regularly perform plant maintenance and maintenance work, during shutdown of boiler, also to carry out care and maintenance to guarantee its service life to boiler, subsidiary engine, pipe network and heat exchanger.
Description of drawings
Fig. 1 is the overall system view of tobacco seedling of the present invention and tobacco flue-curing combining heating system.
Fig. 2 is seedling raising greenhouse heat supply house steward porch schematic three dimensional views in the system of the present invention.
Fig. 3 is seedling raising greenhouse heat supply house steward end schematic three dimensional views in the system of the present invention.
Fig. 4 is the schematic diagram of barn heating system in the system of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, tobacco seedling of the present invention and tobacco flue-curing combining heating system comprise boiler room part, seedling raising greenhouse part and central heating barn part.
The boiler room part comprises boiler body 1, power distribution cabinet 2, slag remover 3, coaling machine 4, preheater 5, deduster 6, smoke exhaust fan 7, chimney 8, sub-cylinder 9, water softener 30, softened water tank 31, feed pump 32.
Seedling raising greenhouse partly comprises air-water heat exchanger 10, water circulating pump 11, water knockout drum 12, enters supply mains 13, entry is in charge of 14, outfall sewer 15, cyclic water tank 18.
The central heating barn partly comprises main steam header road 19, steam jet 22, electrical ball valve 23, vapor heat exchanger 24, hand-operated valve 25, catch-basin 26, drain valve 27, blowoff valve 28, backwater trunk line 29.
Boiler body 1 is used for burning coal, with to the boiler feedwater heating, produces steam.
Preheater 5 is used for the later flue gas of boiler body 1 coal combustion is sent to deduster 6.
Deduster 6 is used for removing the dust of flue gas, and the flue gas after the dedusting is sent to smoke exhaust fan 7.
Smoke exhaust fan 7 is used for by chimney 8 flue gas being discharged.
Slag remover 3 is used for removing the coal ash after boiler body 1 burns.
Power distribution cabinet 2 is used for each power unit power supply to boiler body 1.
Sub-cylinder 9 is used for the steam that boiler body 1 produces is dispensed into air-water heat exchanger 10 and main steam header road 19, and in addition, sub-cylinder 9 also is used for remaining steam is provided for the life heating.Particularly, growing seedlings season, sub-cylinder 9 is dispensed into air-water heat exchanger 10 with steam, to start the tobacco seedling process; In tobacco roasting season, sub-cylinder 9 is dispensed into main steam header road 19 with steam, to start the tobacco roasting process.
The recirculated water that air-water heat exchanger 10 is used for cyclic water tank 18 is provided heats, and the water after will heating is sent in the water circulating pump 11.
As shown in Figures 2 and 3, the delivery port of water knockout drum 12 links to each other with the supply mains 13 that enters of pipe section, and the water after being used for heating is transported to into supply mains 13.
Enter supply mains 13 and enter in the middle part of the side wall of seedling raising greenhouse 16, and traverse each nursery pond 17, the moisture after it is used for heating is fitted on each bar entry and is in charge of 14.
Entry is in charge of 14 outlets and is linked to each other with outfall sewer 15, and the water after being used for heating is transported to outfall sewer 15.
Outfall sewer 15 links to each other with cyclic water tank 18, and the water after being used for heating sends back to cyclic water tank 18.
In addition, enter supply mains 13 and outfall sewer 15 and be arranged in parallel and be positioned on the same perpendicular, and whole nursery pond 17 is divided into symmetrical two parts.
Present embodiment of the present invention is applicable to the seedling raising greenhouse 16 of nursery pond 17 single layouts, namely only has row's nursery pond 17 in the seedling raising greenhouse 16, and each nursery pond 17 traverses seedling raising greenhouse 16 cross directions.In this embodiment, for the nursery pond 17 that enters supply mains 13 and outfall sewer 15 right sides, entry is in charge of an end of 14 and is entered supply mains 13 and link to each other, and entry is in charge of 14 the other end and is linked to each other with outfall sewer 15.Entry be in charge of 14 with enter part that supply mains 13 links to each other perpendicular to the bottom of nursery pond 17 and the sidewall of being close to nursery pond 17 to downward-extension, and to the bending of the center of nursery pond 17, entry be in charge of 14 parts that link to each other with outfall sewer 15 also perpendicular to the bottom of nursery pond 17 and the sidewall of being close to nursery pond 17 to downward-extension, and to the bending of the center of nursery pond 17, the bottom that 14 remainder is positioned at nursery pond 17 is in charge of in entry, and with the whole right side of circuitous mode through nursery pond 17.1/4 and 3/4 place that 14 two sidepieces that are positioned at nursery pond 17 bottoms lay respectively at nursery pond 17 width is in charge of in entry, be conducive to guarantee to grow seedlings in the nursery pond 17 even distribution of liquid temp of this arrangement.
For the nursery pond 17 that enters supply mains 13 and outfall sewer 15 right sides, entry is in charge of 14 arrangement and is entered the identical of supply mains and outfall sewer left side, does not repeat them here.
Air-water heat exchanger 10 also is used for the steam of sub-cylinder 9 dispensings is carried out heat release, and the water that produces after the heat release is transported to softened water tank 31.
Softened water tank 31 is used for water is transported to feed pump 32.
Preheater 5 also is used for water is carried out preheating, and the water after the preheating is transported to boiler body 1.
As shown in Figure 4, main steam header road 19 is used for the steam of sub-cylinder 9 dispensings is transported to steam jet 22 and electrical ball valve 23.
The temperature that electrical ball valve 23 is regulated barn heating clamber 20 interior air for the quantity of steam that enters vapor heat exchanger 24 by control.
Operation principle of the present invention is as follows:
When system turns round, fire coal is sent into boiler body 1 internal combustion by coaling machine 4, the coal ash that burning produces is discharged boiler body 1 by slag remover 3, and the coal-fired flue gas that produces passes through preheater 5, deduster 6, smoke exhaust fan 7 successively, and finally via chimney 8 discharge systems.And the water in the boiler body 1 is provided by softened water tank 31, water all will soften through softening hydrophone 30 before entering softening water tank 31, water in the softening water tank enters boiler body 1 after via feed pump 32 and preheater 5, the mobile power that provides of water is provided feed pump 32, and preheater 5 is to utilize the heat of flue gas to come preheating water.The heat that water after the preheating discharges at boiler body 1 interior reception fire coal, and be gasificated as steam, subsequently, steam enters sub-cylinder 9 waits and is assigned to each gas utilization unit.Above process is all identical in tobacco seedling and Tobacco Leaf Curing, and the below introduces respectively the difference of two processes.
Growing seedlings season, the steam in the sub-cylinder 9 is sent to air-water heat exchanger 10, and carries out heat release herein, the recirculated water of sending here with Heating Cyclic water tank 18.Condense into water after the steam heat release is complete, and be sent back to softened water tank 31, and at opposite side, the recirculated water after being heated enters water circulating pump 11, via entering water knockout drum 12 after water circulating pump 11 pressurizations.At water knockout drum 12 places, enter supply mains 13 corresponding to what seedling raising greenhouse 16 quantity were provided with respective numbers, recirculated water is dispensed into each at water knockout drum 12 places and enters supply mains 13.After entering supply mains 13 and entering seedling raising greenhouse 16, extend an entry corresponding to each nursery pond 17 and be in charge of 14, and hot water is dispensed into each bar entry is in charge of in 14.Entry is in charge of 14 and is arranged in nursery pond 17 bottoms, and hot water is in charge of in 14 in entry and is continued heat release when flowing, with the nutrient solution in the heating nursery pond 17.After heat release was complete, the water that entry is in charge of in 14 was admitted to outfall sewer 15, and sends cyclic water tank back to via outfall sewer 15.In seedling raising process, two closed circuits are arranged: the aqueous medium closed circuit of the aqueous medium closed circuit of boiler room part and seedling raising greenhouse part, they move simultaneously take air-water heat exchanger 10 as binding site.
In tobacco flue-curing season, the steam in the sub-cylinder 9 is sent to main steam header road 19, and main steam header road 19 delivers a vapor to curing barn cluster, and corresponding each barn extends a branch road.Sub-fraction steam can spray into barn via steam jet 22 and hang smoke-box 21 as required on this branch road, and with promotion tobacco leaf conditioning, and most of steam is the control through electrical ball valve 23, enters into vapor heat exchanger 24.Air in the radiating fin heating barn heating clamber 20 of steam by vapor heat exchanger 24, the air after the heating are used for the baking barn and hang tobacco leaf in the smoke-box, and steam condensation Cheng Shui after the heat release, and leave vapor heat exchanger 24.Subsequently, condensate water is passed through hand-operated valve 25, catch-basin 26, drain valve 27 successively, enters into backwater trunk line 29 again, via the conveying of backwater trunk line 29, finally gets back in the feed-tank 31.Blowoff valve 28 is not opened when System Operation, only is used for the residual water of exhaust system after system quits work.In Tobacco Leaf Curing, only has an aqueous medium closed circuit.
Those skilled in the art will readily understand; the above only is preferred embodiment of the present invention; not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a tobacco seedling and tobacco flue-curing combining heating system, comprise the boiler room part, seedling raising greenhouse part and central heating barn part, the boiler room part comprises boiler body, preheater, power distribution cabinet, coaling machine, sub-cylinder, water softener, softened water tank, feed pump, seedling raising greenhouse partly comprises air-water heat exchanger, water circulating pump, water knockout drum, enter the supply mains, entry is in charge of, outfall sewer, cyclic water tank, the central heating barn partly comprises the main steam header road, steam jet, electrical ball valve, vapor heat exchanger, hand-operated valve, catch-basin, drain valve, blowoff valve, the backwater trunk line, it is characterized in that
Coaling machine is used for fire coal is sent into boiler body;
Boiler body is used for burning coal, with to the boiler feedwater heating, produces steam;
Power distribution cabinet is used for each power unit power supply to boiler body;
Sub-cylinder is used for the steam that boiler body produces is dispensed into air-water heat exchanger and main steam header road, and remaining steam is provided for the life heating;
Cyclic water tank is used for providing the required recirculated water of heating of growing seedlings;
The recirculated water that air-water heat exchanger is used for cyclic water tank is provided heats, and the water after will heating is sent in the water circulating pump;
Water circulating pump is used to the water extraction after the heating to supply circulation power, and the water after will heating is sent into water knockout drum;
Water knockout drum is provided with a plurality of delivery ports, and the moisture after it is used for heating is fitted on each seedling raising greenhouse;
The delivery port of water knockout drum links to each other with the supply mains that enters of pipe section, and the water after being used for heating is transported to into the supply mains;
Enter the supply mains and enter in the middle part of the side wall of seedling raising greenhouse, and traverse each nursery pond, the moisture after it is used for heating is fitted on each bar entry and is in charge of;
Entry is in charge of outlet and is linked to each other with outfall sewer, and the water after being used for heating is transported to outfall sewer;
Outfall sewer links to each other with cyclic water tank, and the water after being used for heating sends back to cyclic water tank;
Enter supply mains and outfall sewer and be arranged in parallel and be positioned on the same perpendicular, and whole nursery pond is divided into symmetrical two parts;
Air-water heat exchanger also is used for the steam of sub-cylinder dispensing is carried out heat release, and the water that produces after the heat release is transported to softened water tank;
Water softener is used to softened water tank that demineralized water is provided;
Softened water tank is used for water is transported to feed pump;
Feed pump is used for water is transported to preheater;
Preheater is used for water is carried out preheating, and the water after the preheating is transported to boiler body;
The main steam header road is used for the steam of sub-cylinder dispensing is transported to steam jet and electrical ball valve;
Steam jet is used for that steam is sprayed into barn and hangs smoke-box;
Electrical ball valve is regulated the temperature of barn heating room air for the quantity of steam that enters vapor heat exchanger by control;
Vapor heat exchanger is used for by steam the air in the barn heating clamber being heated, and the water that forms after the steam heat release is transported to softened water tank by hand-operated valve, catch-basin, drain valve and backwater trunk line successively;
Blowoff valve is used for will remaining in the water discharge of system after combining heating system quits work.
2. system according to claim 1 is characterized in that,
The boiler room part also comprises deduster, smoke exhaust fan, chimney, slag remover;
Preheater also is used for the flue gas that the boiler body coal combustion is later and is sent to deduster;
Deduster is used for removing the dust of flue gas, and the flue gas after the dedusting is sent to smoke exhaust fan;
Smoke exhaust fan is used for by chimney flue gas being discharged;
Slag remover is used for removing the coal ash after boiler body burns.
3. system according to claim 1 is characterized in that,
Growing seedlings season, sub-cylinder is dispensed into air-water heat exchanger with steam, to start the tobacco seedling process;
In tobacco roasting season, sub-cylinder is dispensed into the main steam header road with steam, to start the tobacco roasting process.
4. system according to claim 1 is characterized in that, the quantity of water circulating pump is two, wherein work, and another is for subsequent use.
5. system according to claim 1 is characterized in that,
Only have row's nursery pond in the seedling raising greenhouse, each nursery pond traverses the seedling raising greenhouse cross direction;
For the nursery pond that enters supply mains and outfall sewer right side, the end that entry is in charge of with enter the supply mains and link to each other, the other end that entry is in charge of links to each other with outfall sewer;
Entry be in charge of with enter part that the supply mains links to each other perpendicular to the bottom of nursery pond and the sidewall of being close to nursery pond to downward-extension, and to the center bending of nursery pond;
Entry be in charge of the part that links to each other with outfall sewer also perpendicular to the bottom of nursery pond and the sidewall of being close to nursery pond to downward-extension, and to the bending of the center of nursery pond, the remainder that entry is in charge of is positioned at the bottom of nursery pond, and with the whole right side of circuitous mode through nursery pond;
1/4 and 3/4 place that two sidepieces that are positioned at the nursery pond bottom lay respectively at the nursery pond width is in charge of in entry, with the even distribution of the liquid temp of growing seedlings in the assurance nursery pond;
For the nursery pond that enters supply mains and outfall sewer right side, the arrangement that entry is in charge of with enter the identical of supply mains and outfall sewer left side.
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| CN201210405162.4A CN102944003B (en) | 2012-10-22 | 2012-10-22 | Heat supply system combining tobacco seedling with tobacco baking |
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| CN201210405162.4A CN102944003B (en) | 2012-10-22 | 2012-10-22 | Heat supply system combining tobacco seedling with tobacco baking |
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| CN102944003B CN102944003B (en) | 2014-03-26 |
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| CN103519336A (en) * | 2013-10-27 | 2014-01-22 | 云南省烟草农业科学研究院 | Greenhouse integrated system shared by tobacco curing barn modulating device and flue-cured tobacco seedling growing device |
| CN103720022A (en) * | 2014-01-07 | 2014-04-16 | 湖北省烟草科学研究院 | Large-capacity energy-saving environment-friendly bulk curing barn |
| CN103734890A (en) * | 2014-01-02 | 2014-04-23 | 吉林烟草工业有限责任公司 | Cold water heating system for roller type resurgence charging device |
| CN105359823A (en) * | 2015-10-28 | 2016-03-02 | 江苏久禾生物科技发展有限公司 | Steam type heat supply system for mushroom fruiting rooms and application method for same |
| CN109258241A (en) * | 2018-08-22 | 2019-01-25 | 江苏大学 | A kind of greenhouse united heat and for carbon dioxide system |
| CN109645543A (en) * | 2019-01-17 | 2019-04-19 | 云南烟草机械有限责任公司 | A kind of biomass supplies heating integrated tobacco curing barn |
| CN110513746A (en) * | 2019-06-20 | 2019-11-29 | 浙江大学 | A high-efficiency water heater power amplifier |
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