CN203523693U - Waste heat recovery drying system of harvester - Google Patents

Waste heat recovery drying system of harvester Download PDF

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Publication number
CN203523693U
CN203523693U CN201320597521.0U CN201320597521U CN203523693U CN 203523693 U CN203523693 U CN 203523693U CN 201320597521 U CN201320597521 U CN 201320597521U CN 203523693 U CN203523693 U CN 203523693U
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China
Prior art keywords
harvester
tail gas
hot box
exchanger rig
cooling water
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Expired - Fee Related
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CN201320597521.0U
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Chinese (zh)
Inventor
程清伟
张明容
王文杰
梁顺光
董学泳
黄俊斌
曾凡耀
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Guangzhou College of South China University of Technology
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Guangzhou College of South China University of Technology
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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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • 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
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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Abstract

The utility model discloses a waste heat recovery drying system of a harvester. The system comprises an air blower, a cooling water heat exchange device, a tail gas heat exchange device and a drying device, wherein the air blower, the cooling water heat exchange device, the tail gas heat exchange device and the drying device are sequentially connected through an air duct. A water inlet pipe and a water outlet pipe of the cooling water heat exchange device are externally connected with a cooling water recovery device of the harvest, respectively, and the tail gas heat exchange device is externally connected with a tail gas exhaust pipe of the harvester. The waste heat recovery drying system of the harvester is put forward for the harvester, and is different from conventional large-scaled grain driers and can reduce the humidity of grains in real time on the harvester. As the drying system is used in the harvester, the energy recovery rate reaches 34.12%, the drying moisture efficiency reaches 12.65kg/h (calculated according to work efficiency of the harvester of 2000kg/h), the moisture of grains dried is reduced by 8-12% compared with that before drying, and the storage time can be prolonged to 1 to 2 months.

Description

Harvester waste heat recovery drying system
Technical field
The utility model relates to the heat recovery technology of internal combustion engine, particularly a kind of can be in real time for the harvester waste heat recovery drying system of grain-drying.
Background technology
At present, the grain harvester on market be all to grain gather in, directly unloading after threshing, the paddy after this operation is still keeping original humidity.Although there is foodstuff drying device, existing foodstuff drying device drying time is long, volume is large, energy consumption is high, scale is large, is only applicable to a large amount of grain heat-dryings and processes, and is generally applied to the industrial treatment of grain factory.And process for the grain drying of the little output of common peasant, be all generally manually by drying realization, can not use foodstuff drying device.According to statistics, within 2012, yield of grain in China is 58,957 ten thousand tons, but after harvesting because of weather is former thereby have little time to dry or going mouldy of not reaching that safe storage moisture causes, sprout damage amount up to 2,950 ten thousand tons.
Harvester is in normal work, and the effective rate of utilization of the total amount of heat of fuel oil is only 30~40%, and most of energy is dispersed in atmosphere with the form of waste heat.Therefore, if can be in grain harvesting process, the waste heat producing by reclaiming harvester, in real time grain is dried, can greatly reduce the humidity of grain, and then reduce the probability going mouldy, thereby extend the resting period of grain, reduce the cost of grain later stage baking needed.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the harvester waste heat recovery drying system that a kind of principle is simple, can realize real-time reduction grain moisture on harvester is provided.
The technical solution of the utility model is: a kind of harvester waste heat recovery drying system, comprise air blast, cooling water heat-exchanger rig, tail gas heat-exchanger rig and drying unit, air blast, cooling water heat-exchanger rig, tail gas heat-exchanger rig are connected by airduct successively with drying unit; The water inlet pipe of cooling water heat-exchanger rig and outlet pipe be the cooling water recovery device of external harvester respectively, the exhaust pipe of the external harvester of tail gas heat-exchanger rig.
The heater tank that described cooling water heat-exchanger rig is harvester.
Described tail gas heat-exchanger rig comprises that support housing and seamless carbon steel water center of gravity heat pipe support housing middle part arrange dividing plate, dividing plate top is upper sheaf space, dividing plate below is lower layer space, in support housing, be distributed with a plurality of seamless carbon steel water center of gravity heat pipes, each is seamless, and carbon steel water center of gravity heat pipe passes respectively dividing plate, and each upper and lower two ends of seamless carbon steel water center of gravity heat pipe are connected with bottom surface with the end face of support housing respectively;
In upper sheaf space, the both sides of support housing are respectively equipped with tail gas exhaust outlet and outer exhaust port, the exhaust pipe of the external harvester of tail gas exhaust outlet, the outer blast pipe of the external harvester of outer exhaust port;
In lower layer space, the both sides of support housing are respectively equipped with air inlet and air outlet, and air inlet is connected with cooling water heat-exchanger rig, and air outlet is connected with drying unit.
In tail gas heat-exchanger rig, the upper sheaf space of tail gas process from exhaust pipe, heat is absorbed by seamless carbon steel water center of gravity heat pipe and reaches lower layer space, from the air of cooling water heat-exchanger rig during through lower layer space, seamless carbon steel water center of gravity heat pipe with heat it is heated.
Described drying unit is snakelike drying unit, comprise hot box and a plurality of guide plate, hot box top is provided with cereal entrance, hot box bottom is provided with grain outlet, hot box sidewall is provided with hot-wind inlet, and hot-wind inlet is connected with tail gas heat-exchanger rig by airduct, and a plurality of guide plates are set in hot box, each guide plate is obliquely installed, and a plurality of guide plates form serpentine track; The external grain conveying device of cereal entrance of hot box.In hot box, polylith guide plate is set and forms serpentine track, its objective is: cereal falls along serpentine track, grain is every through a guide plate, all by being subject to frictional force effect, has slowed down the time of falling, and the high speed thermal current that grain is blasted in dropping process is dried, in the situation that not affecting the normal operating efficiency of harvester, the longer drying effect of fall time is better, so cereal evaporates surperficial part moisture after drying unit, thereby reaches good drying effect.
In described hot box, the angle of each guide plate and horizontal plane is the acute angle of≤45 °.The gradient of guide plate is little, is the distance falling in order to extend cereal, and increases the contact area of cereal, postpones the time that cereal delivers from godown, thereby improves the drying efficiency of cereal.
In described hot box, each guide plate is all downward-sloping, and guide plate one side is fixed on the sidewall of hot box, between the corresponding sidewall of guide plate opposite side and hot box, leaves cereal passage, and adjacent two guide plates are alternately fixed on two side relative in hot box.
Described hot-wind inlet is located at the bottom of hot box sidewall, and in hot box, cereal from top to bottom moves, and hot blast moves from the bottom to top, and cereal is contrary with the direction of motion of hot blast, can effectively extend the oven dry distance of cereal, reaches good drying effect.
Described air blast is cfentrifugal blower.
This harvester waste heat recovery drying system also can coordinate control system to use, and realizes higher intellectuality and controls.Control system can adopt based on electronic computer and the formed control platform of single-chip microcomputer, mainly take Based Intelligent Control as main, Artificial Control is auxiliary principle, at the key position mounting temperature sensor of harvester waste heat recovery drying system, humidity sensor, air velocity transducer etc., utilize the information that sensor is beamed back automatically to regulate temperature, humidity, wind speed and air quantity, realize optimization control, thereby reach the effect of energy-saving and emission-reduction.
When this harvester waste heat recovery drying system is used, its principle is: when harvester is normally worked, outside air is blown in system by air blast, is introduced into cooling water heat-exchanger rig, carry out heat exchange with the cooling water from harvester cooling water recovery device, realize the once heating of air; Then enter in tail gas heat-exchanger rig, carry out heat exchange with the tail gas from harvester exhaust pipe, realize the post bake of air, form hot blast; Hot blast enters drying unit, and in drying unit, cereal from top to bottom moves, and hot blast moves from the bottom to top, and cereal is dried.
The utility model, with respect to prior art, has following beneficial effect:
This harvester waste heat recovery drying system proposes for harvester, be different from traditional extensive foodstuff drying device, can realize and on harvester, reduce in real time grain moisture, in harvester, use this drying system, energy recovery rate reaches 34.12%, it is that 2000kg/h calculates by harvester operating efficiency that oven dry moisture efficiency reaches 12.65kg/h(), after grain-drying, than moisture decline 8~12% before drying, the storage time can extend 1 to 2 months.
This harvester waste heat recovery drying system is by harvester using waste heat from tail gas and cooling water heat combined recovery, and waste heat recovery amount promotes greatly, directly utilizes the heat of recovery as the thermal source of drying unit, avoids the loss and waste of energy; Wherein waste-heat recovery device adopts the seamless carbon steel heat tubular construction of screw type, and heat exchange efficiency significantly promotes.
This harvester waste heat recovery drying system principle is simple, apparatus structure is also simple, manufacturing cost is lower, use applicable to popular peasant household on harvester, in the time of harvester work, can dry the cereal of harvesting, reduce the mouldy rate of cereal, reduce the labour intensity of peasant household, the most important thing is to improve peasant's income level, utilization and extention is worth high.
Accompanying drawing explanation
Fig. 1 is the structural representation of this harvester waste heat recovery drying system.
Fig. 2 is the structural representation of tail gas heat-exchanger rig in this harvester waste heat recovery drying system.
Fig. 3 is that the A-A of Fig. 2 is to view.
Fig. 4 is the structural representation of drying unit in this harvester waste heat recovery drying system.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
A kind of harvester waste heat recovery of the present embodiment drying system, as shown in Figure 1, comprise air blast 1, cooling water heat-exchanger rig 3, tail gas heat-exchanger rig 6 and drying unit 12, air blast, cooling water heat-exchanger rig, tail gas heat-exchanger rig and drying unit are connected successively by airduct 2; The water inlet pipe 4 of cooling water heat-exchanger rig and outlet pipe 5 be the cooling water recovery device of external harvester respectively, the exhaust pipe of the external harvester of tail gas heat-exchanger rig.
Cooling water heat-exchanger rig can adopt the heater tank of harvester, and can adopt model is the heater tank of Santana 2000.
As shown in Figure 2 or Figure 3, tail gas heat-exchanger rig comprises support housing 7 and seamless carbon steel water center of gravity heat pipe 8, support housing middle part arranges dividing plate 9, dividing plate top is upper sheaf space, dividing plate below is lower layer space, in support housing, be distributed with a plurality of seamless carbon steel water center of gravity heat pipes, each is seamless, and carbon steel water center of gravity heat pipe passes respectively dividing plate, and each upper and lower two ends of seamless carbon steel water center of gravity heat pipe are connected with bottom surface with the end face of support housing respectively;
In upper sheaf space, the both sides of support housing are respectively equipped with tail gas exhaust outlet 10 and outer exhaust port 11, the exhaust pipe of the external harvester of tail gas exhaust outlet, the outer blast pipe of the external harvester of outer exhaust port;
In lower layer space, the both sides of support housing are respectively equipped with air inlet 13 and air outlet 14, and air inlet is connected with cooling water heat-exchanger rig, and air outlet is connected with drying unit.
In tail gas heat-exchanger rig, the upper sheaf space of tail gas process from exhaust pipe, heat is absorbed by seamless carbon steel water center of gravity heat pipe and reaches lower layer space, from the air of cooling water heat-exchanger rig during through lower layer space, seamless carbon steel water center of gravity heat pipe with heat it is heated.
As shown in Figure 4, drying unit is snakelike drying unit, comprise hot box 15 and a plurality of guide plate 16, hot box top is provided with cereal entrance 17, and hot box bottom is provided with grain outlet 18, and hot box sidewall is provided with hot-wind inlet 19, hot-wind inlet is connected with tail gas heat-exchanger rig by airduct, a plurality of guide plates are set in hot box, and each guide plate is obliquely installed, and a plurality of guide plates form serpentine track; The external grain conveying device 20 of cereal entrance of hot box.In hot box, polylith guide plate is set and forms serpentine track, its objective is: cereal falls along serpentine track, grain is every through a guide plate, all by being subject to frictional force effect, has slowed down the time of falling, and the high speed thermal current that grain is blasted in dropping process is dried, in the situation that not affecting the normal operating efficiency of harvester, the longer drying effect of fall time is better, so cereal evaporates surperficial part moisture after drying unit, thereby reaches good drying effect.
In hot box, the angle of each guide plate and horizontal plane is the acute angle of≤45 °.The gradient of guide plate is little, is the distance falling in order to extend cereal, and increases the contact area of cereal, postpones the time that cereal delivers from godown, thereby improves the drying efficiency of cereal.
In hot box, each guide plate is all downward-sloping, and guide plate one side is fixed on the sidewall of hot box, between the corresponding sidewall of guide plate opposite side and hot box, leaves cereal passage, and adjacent two guide plates are alternately fixed on two side relative in hot box.
Hot-wind inlet is located at the bottom of hot box sidewall, and in hot box, cereal from top to bottom moves, and hot blast moves from the bottom to top, and cereal is contrary with the direction of motion of hot blast, can effectively extend the oven dry distance of cereal, reaches good drying effect.
Air blast can adopt cfentrifugal blower, and its power is 180W, and air quantity is 9m 3/ min.
This harvester waste heat recovery drying system also can coordinate control system to use, and realizes higher intellectuality and controls.Control system can adopt based on electronic computer and the formed control platform of single-chip microcomputer, mainly take Based Intelligent Control as main, Artificial Control is auxiliary principle, at the key position mounting temperature sensor of harvester waste heat recovery drying system, humidity sensor, air velocity transducer etc., utilize the information that sensor is beamed back automatically to regulate temperature, humidity, wind speed and air quantity, realize optimization control, thereby reach the effect of energy-saving and emission-reduction.
When this harvester waste heat recovery drying system is used, its principle is: when harvester is normally worked, as shown in the arrow in Fig. 1, outside air is blown in system by air blast, be introduced into cooling water heat-exchanger rig, carry out heat exchange with the cooling water from harvester cooling water recovery device, realize the once heating of air; Then enter in tail gas heat-exchanger rig, carry out heat exchange with the tail gas from harvester exhaust pipe, realize the post bake of air, form hot blast; Hot blast enters drying unit, and in drying unit, cereal from top to bottom moves, and hot blast moves from the bottom to top, and cereal is dried.
As mentioned above, just can realize preferably the utility model, above-described embodiment is only preferred embodiment of the present utility model, is not used for limiting practical range of the present utility model; Be that all equalizations of doing according to the utility model content change and modify, all by the utility model claim scope required for protection, contained.

Claims (8)

1. harvester waste heat recovery drying system, is characterized in that, comprises air blast, cooling water heat-exchanger rig, tail gas heat-exchanger rig and drying unit, and air blast, cooling water heat-exchanger rig, tail gas heat-exchanger rig are connected by airduct successively with drying unit; The water inlet pipe of cooling water heat-exchanger rig and outlet pipe be the cooling water recovery device of external harvester respectively, the exhaust pipe of the external harvester of tail gas heat-exchanger rig.
2. harvester waste heat recovery drying system according to claim 1, is characterized in that, the heater tank that described cooling water heat-exchanger rig is harvester.
3. harvester waste heat recovery drying system according to claim 1, it is characterized in that, described tail gas heat-exchanger rig comprises support housing and seamless carbon steel water center of gravity heat pipe, support housing middle part arranges dividing plate, dividing plate top is upper sheaf space, and dividing plate below is lower layer space, is distributed with a plurality of seamless carbon steel water center of gravity heat pipes in support housing, each is seamless, and carbon steel water center of gravity heat pipe passes respectively dividing plate, and each upper and lower two ends of seamless carbon steel water center of gravity heat pipe are connected with bottom surface with the end face of support housing respectively;
In upper sheaf space, the both sides of support housing are respectively equipped with tail gas exhaust outlet and outer exhaust port, the exhaust pipe of the external harvester of tail gas exhaust outlet, the outer blast pipe of the external harvester of outer exhaust port;
In lower layer space, the both sides of support housing are respectively equipped with air inlet and air outlet, and air inlet is connected with cooling water heat-exchanger rig, and air outlet is connected with drying unit.
4. harvester waste heat recovery drying system according to claim 1, it is characterized in that, described drying unit is snakelike drying unit, comprises hot box and a plurality of guide plate, and hot box top is provided with cereal entrance, hot box bottom is provided with grain outlet, hot box sidewall is provided with hot-wind inlet, and hot-wind inlet is connected with tail gas heat-exchanger rig by airduct, and a plurality of guide plates are set in hot box, each guide plate is obliquely installed, and a plurality of guide plates form serpentine track; The external grain conveying device of cereal entrance of hot box.
5. harvester waste heat recovery drying system according to claim 4, is characterized in that, in described hot box, the angle of each guide plate and horizontal plane is the acute angle of≤45 °.
6. harvester waste heat recovery drying system according to claim 4, it is characterized in that, in described hot box, each guide plate is all downward-sloping, guide plate one side is fixed on the sidewall of hot box, between the corresponding sidewall of guide plate opposite side and hot box, leave cereal passage, adjacent two guide plates are alternately fixed on two side relative in hot box.
7. harvester waste heat recovery drying system according to claim 4, is characterized in that, described hot-wind inlet is located at the bottom of hot box sidewall.
8. harvester waste heat recovery drying system according to claim 1, is characterized in that, described air blast is cfentrifugal blower.
CN201320597521.0U 2013-09-26 2013-09-26 Waste heat recovery drying system of harvester Expired - Fee Related CN203523693U (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318976A (en) * 2017-08-08 2017-11-07 常州天能博智能系统科技有限公司 A kind of grain-drying system and household energy conserving system based on server waste heat
CN109458269A (en) * 2018-12-11 2019-03-12 吉林大学 A kind of harvester diesel engine waste heat recovery device that can be automatically controled
CN111380352A (en) * 2020-03-30 2020-07-07 河南龙成煤高效技术应用有限公司 Material drying equipment and application thereof
CN111699845A (en) * 2020-05-09 2020-09-25 江苏大学 Hot air cleaning system of combine harvester and working method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318976A (en) * 2017-08-08 2017-11-07 常州天能博智能系统科技有限公司 A kind of grain-drying system and household energy conserving system based on server waste heat
CN109458269A (en) * 2018-12-11 2019-03-12 吉林大学 A kind of harvester diesel engine waste heat recovery device that can be automatically controled
CN111380352A (en) * 2020-03-30 2020-07-07 河南龙成煤高效技术应用有限公司 Material drying equipment and application thereof
CN111380352B (en) * 2020-03-30 2022-01-07 河南龙成煤高效技术应用有限公司 Material drying equipment and application thereof
CN111699845A (en) * 2020-05-09 2020-09-25 江苏大学 Hot air cleaning system of combine harvester and working method
CN111699845B (en) * 2020-05-09 2022-07-22 江苏大学 Hot air cleaning system of combine harvester and working method

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