CN115406190B - Multifunctional solar hot air drying and heating system - Google Patents

Multifunctional solar hot air drying and heating system Download PDF

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Publication number
CN115406190B
CN115406190B CN202210978836.3A CN202210978836A CN115406190B CN 115406190 B CN115406190 B CN 115406190B CN 202210978836 A CN202210978836 A CN 202210978836A CN 115406190 B CN115406190 B CN 115406190B
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China
Prior art keywords
water
tank
pipe
heat exchange
temperature
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CN202210978836.3A
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Chinese (zh)
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CN115406190A (en
Inventor
李志敏
李浩浩
孙士坤
历恩启
孙晓莉
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Zaozhuang Jinhengtong Agricultural New Energy Technology Co ltd
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Zaozhuang Jinhengtong Agricultural New Energy Technology Co ltd
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Priority to CN202210978836.3A priority Critical patent/CN115406190B/en
Publication of CN115406190A publication Critical patent/CN115406190A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10Temperature; Pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • F26B23/10Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • F26B25/002Handling, e.g. loading or unloading arrangements for bulk goods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06Chambers, containers, or receptacles
    • F26B25/08Parts thereof
    • F26B25/12Walls or sides; Doors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/28Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention provides a multifunctional solar hot air drying and heating system which comprises a solar heat collector and a water storage tank connected with the solar heat collector through a water pipe, wherein a heat exchange tank, a temperature detector, a PLC (programmable logic controller), a drying chamber, a temperature regulating tank and a condensed water collecting tank are arranged on one side of the water storage tank, one end of the water storage tank is connected with a hot water conveying pipe, and a first circulating pipe and a second circulating pipe are connected between the heat exchange tank and the water storage tank. According to the invention, heat of the solar heat collector can be transmitted into the drying chamber to dry the product through heat exchange, condensed water generated by drying is collected so as to be supplied to the cleaning mechanism for cleaning the solar heat collector, and the temperature of the transmitted hot air can be regulated and controlled by controlling the water inflow of the condensed water into the temperature regulating box through the PLC according to the actually set drying temperature range, so that the system is more multifunctional, and heat energy and condensed water generated by drying can be reasonably utilized in a circulating way.

Description

Multifunctional solar hot air drying and heating system
Technical Field
The invention relates to the technical field of solar heat collection, in particular to a multifunctional solar hot air drying and heating system.
Background
Solar energy is used as free natural energy, which has great limitation, and how to collect enough energy and continuously use the energy for heating and drying is the most important key. The collection of solar energy depends on the heat collector, but the heat collected by the current heat collector on the market is certain, and the bottleneck is encountered when the heat energy is collected in front of the limited heat collecting area, so how to more effectively utilize the heat energy becomes the focus of the current photo-thermal industry.
The traditional solar photo-thermal equipment is mainly applied to a solar water heater, the existing solar water heater is single in function and only has the function of providing hot water, the traditional hot air drying and heating are generally performed through a dryer, the traditional hot air drying and heating are all key links for improving the quality of products in many fields, but the heating and the drying are high-energy consumption processes, if the hot water is provided by the solar water heater and the realization of the hot water, the products can be heated and dried by the heat energy of the solar water heater, so that the energy consumption and the environmental pollution can be reduced, and the heat energy can be fully utilized to avoid waste.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multifunctional solar hot air drying and heating system, which solves the problems that the solar water heater in the prior art has single function and only has the function of providing hot water, the heat energy cannot be fully utilized, the waste is easy to generate, and the energy cannot be recycled.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a multi-functional solar energy hot air stoving heating system, includes solar collector and passes through the storage water tank of water piping connection with solar collector, one side of storage water tank is provided with heat exchange box, temperature detector, PLC controller, drying chamber, temperature regulating tank and comdenstion water collecting box, storage water tank one end is connected with the hot water conveyer pipe, be connected with first circulating pipe and second circulating pipe between heat exchange box and the storage water tank, be provided with circulating water pump on the second circulating pipe, the top of heat exchange box is provided with the fan, the one end and the heat exchange box of fan are connected, and the other end and the temperature regulating tank of fan are connected, be provided with the automatically controlled valve between temperature regulating tank and the comdenstion water collecting box, be connected with the collecting pipe between comdenstion water collecting box and the drying chamber, the temperature detector is located between temperature regulating tank and the drying chamber, solar collector's surface mounting has clean mechanism, one side of comdenstion water collecting box is connected with the delivery pump, the water outlet end of delivery pump is connected with the wash pipe, wash pipe and wash mechanism are connected.
Preferably, the inside of heat exchange box is provided with the heat exchange tube, the heat exchange tube is the spiral setting, the both ends of heat exchange tube are connected with first circulating pipe and second circulating pipe respectively, the below of heat exchange tube is provided with a plurality of deflector that are crisscross setting, a plurality of deflector respectively with the inside wall fixed connection of heat exchange box, the air inlet has been seted up to the bottom lateral wall of heat exchange box.
Preferably, the inside of the temperature regulating box is provided with a temperature regulating pipe, the temperature regulating pipe is in an S-shaped arrangement, two ends of the temperature regulating pipe extend to the outside and are respectively connected with an air outlet end of the fan and an air inlet end of the temperature detector, and one side of the temperature regulating box is provided with a water outlet.
Preferably, the inner wall of drying chamber installs the stoving shower nozzle, the condensate plate is installed on the top of drying chamber, the condensate plate is the setting of falling "V" type, the two symmetrical inner walls of drying chamber all are fixed with the water receiving tank, the water receiving tank is connected with and gathers the pipe, it is connected with the collecting pipe to gather the pipe.
Preferably, the inner bottom wall of the water receiving tank is obliquely arranged towards one end close to the converging pipe.
Preferably, the cleaning mechanism comprises linear motors arranged at two ends of the solar heat collector, brushing devices are jointly fixed on the movable sliding tables of the two linear motors, each brushing device comprises a brush and a water spray head, and the cleaning pipe is connected with the water spray heads of the brushing devices.
Preferably, one side of the water storage tank is connected with a hot water conveying pipe.
Working principle: when the solar heat collector is used, solar heat energy is collected by the solar heat collector and circulated between the solar heat collector and the water storage tank by the water supply pump, the solar heat energy collected by the solar heat collector is continuously transmitted to the water storage tank, the solar heat collector can be used for drying when a certain heat degree is reached, the circulating water pump is started when the solar heat collector needs to be dried, hot water is circulated into the heat exchange tank, the heat is dissipated into the heat collection tank due to good heat dissipation effect of the heat exchange pipe, the heat can be transmitted into the drying chamber by the fan, moist products in the drying chamber can generate water vapor when being dried by hot air, the water vapor rises to be condensed into water drops by the condensation plate, the water drops can fall into the water receiving tank under the action of the inclined condensation plate and flow into the condensed water collection tank for collection, the collected condensed water can be used when the solar heat collector needs to be cleaned, the conveying water pump and the linear motor is started when the solar heat collector needs to be cleaned, and the linear motor drives the scrubber to move on the solar heat collection plate, and the condensed water conveyed by the conveying water pump is ejected for cleaning;
meanwhile, when the temperature of hot air to be dried can be set through the PLC controller, the hot air is detected through the temperature detector before being conveyed to the drying chamber, if the temperature is higher than a set value, the electric control valve is opened to enter condensed water, the hot air in the temperature regulating pipe is cooled through the condensed water, the temperature regulating pipe is arranged in a multi-S mode, the higher the water level of the condensed water is, the better the cooling effect is, and if the temperature detected through the temperature detector is lower, the condensed water in the temperature regulating box is discharged through the water outlet controlled by the PLC controller, so that the effect of temperature regulation is achieved.
The invention provides a multifunctional solar hot air drying and heating system. The beneficial effects are as follows:
according to the invention, heat of the solar heat collector can be transmitted into the drying chamber to dry the product through heat exchange, condensed water generated by drying is collected so as to be supplied to the cleaning mechanism for cleaning the solar heat collector, and the temperature of the transmitted hot air can be regulated and controlled by controlling the water inflow of the condensed water into the temperature regulating box through the PLC according to the actually set drying temperature range, so that the system is more multifunctional, and heat energy and condensed water generated by drying can be reasonably utilized in a circulating way.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a view showing an internal construction of a heat exchange tank according to the present invention;
FIG. 3 is a view showing an internal structure of a drying chamber according to the present invention;
fig. 4 is an internal structural view of the incubator according to the present invention.
1, a solar heat collector; 2. a water storage tank; 3. a heat exchange box; 301. a heat exchange tube; 302. a guide plate; 303. an air inlet; 4. a temperature detector; 5. a PLC controller; 6. a drying chamber; 601. a condensing plate; 602. a water receiving tank; 603. a converging tube; 604. drying the spray head; 7. a temperature regulating box; 701. a temperature adjusting tube; 702. a water outlet; 8. a condensed water collecting tank; 9. an electric control valve; 10. a delivery water pump; 11. a water pipe; 12. a hot water delivery pipe; 13. a first circulation pipe; 14. a circulating water pump; 15. a second circulation pipe; 16. cleaning the tube; 17. a scrubber; 18. a linear motor; 19. a blower; 20. and (5) collecting pipes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1, the embodiment of the invention provides a multifunctional solar hot air drying and heating system, which comprises a solar heat collector 1 and a water storage tank 2 connected with the solar heat collector 1 through a water pipe 11, wherein one side of the water storage tank 2 is provided with a heat exchange tank 3, a temperature detector 4, a PLC controller 5, a drying chamber 6, a temperature regulating tank 7 and a condensed water collecting tank 8, one end of the water storage tank 2 is connected with a hot water conveying pipe 12, a first circulating pipe 13 and a second circulating pipe 15 are connected between the heat exchange tank 3 and the water storage tank 2, a circulating water pump 14 is arranged on the second circulating pipe 15, the top end of the heat exchange tank 3 is provided with a fan 19, one end of the fan 19 is connected with the heat exchange tank 3, the other end of the fan 19 is connected with the temperature regulating tank 7, an electric control valve 9 is arranged between the temperature regulating tank 7 and the condensed water collecting tank 8, a collecting pipe 20 is connected between the condensed water collecting tank 8 and the drying chamber 6, the temperature detector 4 is positioned between the temperature regulating tank 7 and the drying chamber 6, a cleaning mechanism is arranged on the surface of the solar heat collector 1, one side of the collecting tank 8 is connected with a conveying water pump 10, the water outlet end of the conveying water pump 10 is connected with a cleaning pipe 16, one side of the water outlet end of the conveying water pipe 16 is connected with the water storage tank 2, and the cleaning mechanism is connected with the water storage tank 2, when the temperature is high, and the temperature is connected with the water storage tank 2, and the temperature is used, when the temperature is high, and the temperature is used, and the water is stored in the water storage tank 2 is connected with the water storage tank 2, and has a cleaning mechanism.
The cleaning mechanism comprises linear motors 18 arranged at two ends of the solar heat collector 1, brushing devices 17 are jointly fixed on the movable sliding tables of the two linear motors 18, each brushing device 17 comprises a brush and a water spray head, the cleaning pipe 16 is connected with the water spray heads of the brushing devices 17, the brushing devices 17 can move back and forth on the surface of the solar heat collector 1 through the two linear motors 18 and spray water through the water spray heads of the brushing devices 17, meanwhile, the brush moves back and forth to brush the solar heat collector 1 to avoid the influence of dust fall on heat collection effect due to long-term use, condensed water is recycled and utilized well, and waste of resources is avoided.
As shown in fig. 2, the heat exchange tube 301 is disposed in the heat exchange box 3, the heat exchange tube 301 is in a spiral arrangement, two ends of the heat exchange tube 301 are respectively connected with the first circulation tube 13 and the second circulation tube 15, a plurality of guide plates 302 which are staggered are disposed below the heat exchange tube 301, the plurality of guide plates 302 are respectively fixedly connected with the inner side wall of the heat exchange box 3, the air inlet 303 is formed in the bottom side wall of the heat exchange box 3, the heat exchange tube 301 is made of heat dissipation metal, heat can be dissipated into the heat exchange box 3, meanwhile, the heat dissipation of the heat can be avoided by the heat exchange box 3 as a heat insulation material, and the air inlet speed of the heat exchange box 3 can be reduced by the arrangement of the plurality of guide plates 302, so that the entering air can be heated to a greater extent.
As shown in fig. 3, a drying nozzle 604 is mounted on the inner wall of the drying chamber 6, a condensation plate 601 is mounted on the top end of the drying chamber 6, the condensation plate 601 is arranged in an inverted V shape, two symmetrical inner walls of the drying chamber 6 are both fixed with a water receiving tank 602, the water receiving tank 602 is connected with a converging pipe 603, the converging pipe 603 is connected with a collecting pipe 20, the inner bottom wall of the water receiving tank 602 is inclined towards one end close to the converging pipe 603, water vapor generated by drying can be liquefied into water through precooling of the condensation plate 601, the condensed water can flow into the water receiving tank 602 along the inverted V shape due to the fact that the condensation plate 601 is inclined towards one end close to the converging pipe 603, and the condensed water can be converged into the converging pipe 603 and flows from the collecting pipe 20 to the inside of a condensed water collecting box 8 for collection.
As shown in fig. 4, a temperature adjusting pipe 701 is disposed in the temperature adjusting box 7, the temperature adjusting pipe 701 is S-shaped, two ends of the temperature adjusting pipe 701 extend to the outside and are respectively connected with an air outlet end of the fan 19 and an air inlet end of the temperature detector 4, a water outlet 702 is disposed at one side of the temperature adjusting box 7, the temperature of hot air to be dried can be set by the PLC controller 5, the hot air passes through the temperature detector 4 to be detected before being transmitted to the drying chamber 6, if the temperature is higher than a set value, the electric control valve 9 is opened to enter condensed water, the hot air in the temperature adjusting pipe 701 is cooled by the condensed water, because the temperature adjusting pipe 701 is multi-S-shaped, the higher the water level of the condensed water is, the better the cooling effect is, and if the temperature detected by the temperature detector 4 is lower, the condensed water in the temperature adjusting box 7 can be discharged by the water outlet 702 under the control of the PLC controller 5, so as to achieve the effect of temperature adjustment.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a multi-functional solar energy hot air stoving heating system, includes solar collector (1) and passes through storage water tank (2) that raceway (11) are connected with solar collector (1), its characterized in that: one side of the water storage tank (2) is provided with a heat exchange tank (3), a temperature detector (4), a PLC (programmable logic controller) (5), a drying chamber (6), a temperature regulating tank (7) and a condensed water collecting tank (8), one end of the water storage tank (2) is connected with a hot water conveying pipe (12), a first circulating pipe (13) and a second circulating pipe (15) are connected between the heat exchange tank (3) and the water storage tank (2), a circulating water pump (14) is arranged on the second circulating pipe (15), the top end of the heat exchange tank (3) is provided with a fan (19), one end of the fan (19) is connected with the heat exchange tank (3), the other end of the fan (19) is connected with the temperature regulating tank (7), an electric control valve (9) is arranged between the temperature regulating tank (7) and the condensed water collecting tank (8), a collecting pipe (20) is connected between the condensed water collecting tank (8) and the drying chamber (6), the temperature detector (4) is positioned between the temperature regulating tank (7) and the drying chamber (6), the surface of the solar heat collector (1) is provided with a circulating water pump (14), the surface of the cleaning mechanism is provided with a water pump (10), one side of the condensed water collecting tank (8) is connected with a water conveying pipe (10), the cleaning pipe (16) is connected with the cleaning mechanism;
the heat exchange device is characterized in that a heat exchange tube (301) is arranged in the heat exchange box (3), the heat exchange tube (301) is spirally arranged, two ends of the heat exchange tube (301) are respectively connected with a first circulating tube (13) and a second circulating tube (15), a plurality of guide plates (302) which are arranged in a staggered mode are arranged below the heat exchange tube (301), the guide plates (302) are respectively fixedly connected with the inner side wall of the heat exchange box (3), and an air inlet (303) is formed in the side wall of the bottom end of the heat exchange box (3);
the inside of the temperature regulating box (7) is provided with a temperature regulating pipe (701), the temperature regulating pipe (701) is in an S-shaped arrangement, two ends of the temperature regulating pipe (701) extend to the outside and are respectively connected with an air outlet end of the fan (19) and an air inlet end of the temperature detector (4), one side of the temperature regulating box (7) is provided with a water outlet (702), hot air passes through the temperature detector (4) to be detected before being transmitted to the drying chamber (6), if the temperature is higher than a set value, an electric control valve (9) is opened to enter condensed water, the hot air in the temperature regulating pipe (701) is cooled by the condensed water, and as the temperature regulating pipe (701) is in the S-shaped arrangement, the higher the water level of the condensed water is, the better the cooling effect is, if the temperature detected by the temperature detector (4) is lower, the condensed water in the temperature regulating box (7) is discharged by the water outlet (702) through the control of the PLC (5), so as to achieve the effect of temperature regulation;
a drying spray head (604) is arranged on the inner wall of the drying chamber (6), a condensing plate (601) is arranged at the top end of the drying chamber (6), the condensing plate (601) is arranged in an inverted V shape, water receiving tanks (602) are respectively fixed on the two symmetrical inner walls of the drying chamber (6), the water receiving tanks (602) are connected with converging pipes (603), and the converging pipes (603) are connected with collecting pipes (20);
the cleaning mechanism comprises linear motors (18) arranged at two ends of the solar heat collector (1), brushing devices (17) are fixed on the movable sliding tables of the two linear motors (18) together, each brushing device (17) comprises a brush and a water spray head, and the cleaning pipe (16) is connected with the water spray head of each brushing device (17).
2. The multifunctional solar hot air drying and heating system according to claim 1, wherein: the inner bottom wall of the water receiving tank (602) is obliquely arranged towards one end close to the converging pipe (603).
3. The multifunctional solar hot air drying and heating system according to claim 1, wherein: one side of the water storage tank (2) is connected with a hot water conveying pipe (12).
CN202210978836.3A 2022-08-16 2022-08-16 Multifunctional solar hot air drying and heating system Active CN115406190B (en)

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Application Number Priority Date Filing Date Title
CN202210978836.3A CN115406190B (en) 2022-08-16 2022-08-16 Multifunctional solar hot air drying and heating system

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Application Number Priority Date Filing Date Title
CN202210978836.3A CN115406190B (en) 2022-08-16 2022-08-16 Multifunctional solar hot air drying and heating system

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CN115406190B true CN115406190B (en) 2023-10-27

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Publication number Priority date Publication date Assignee Title
DE3012961A1 (en) * 1980-04-02 1981-10-08 Friedrich 7900 Ulm Bilger Compact indirect heat exchanger - passes one medium through pipe coil and other one through enclosing housing
DE10109895A1 (en) * 2000-03-09 2001-09-13 Elfriede Herzog Gas-air mixture feed system bubbles gas through water prior to combustion and involves mixture fed through flowing thin film of water whose flow direction is at ninety degrees to that of mixture
CN102818446A (en) * 2012-08-28 2012-12-12 江苏宏海太阳能科技有限公司 Multifunctional solar hot-air drying heating system
CN108286876A (en) * 2016-10-13 2018-07-17 哈尔滨理工大学 A kind of new type solar energy liquid for heat collection type Recombinant Wood drying system
CN108645143A (en) * 2018-05-19 2018-10-12 潘礼斌 A kind of herbage drying system based on solar-heating
CN210625377U (en) * 2019-07-05 2020-05-26 黄冈市华窑中祥窑炉设备有限公司 Tunnel cave waste heat recovery utilizes device
JP6886214B1 (en) * 2020-05-12 2021-06-16 烟台大学Yantai University Various energy complementary heat pump drying equipment suitable for low temperature conditions
CN216668376U (en) * 2022-01-06 2022-06-03 浙江亚微精密机床有限公司 Heat exchanger capable of adjusting heat exchange area according to temperature change

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3893407B1 (en) * 2006-05-08 2007-03-14 マルショウ技研 株式会社 Fully passive solar wood drying equipment
US20160018130A1 (en) * 2010-06-10 2016-01-21 Klaus Schmitt Flue having an adjustable flue gas flow unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012961A1 (en) * 1980-04-02 1981-10-08 Friedrich 7900 Ulm Bilger Compact indirect heat exchanger - passes one medium through pipe coil and other one through enclosing housing
DE10109895A1 (en) * 2000-03-09 2001-09-13 Elfriede Herzog Gas-air mixture feed system bubbles gas through water prior to combustion and involves mixture fed through flowing thin film of water whose flow direction is at ninety degrees to that of mixture
CN102818446A (en) * 2012-08-28 2012-12-12 江苏宏海太阳能科技有限公司 Multifunctional solar hot-air drying heating system
CN108286876A (en) * 2016-10-13 2018-07-17 哈尔滨理工大学 A kind of new type solar energy liquid for heat collection type Recombinant Wood drying system
CN108645143A (en) * 2018-05-19 2018-10-12 潘礼斌 A kind of herbage drying system based on solar-heating
CN210625377U (en) * 2019-07-05 2020-05-26 黄冈市华窑中祥窑炉设备有限公司 Tunnel cave waste heat recovery utilizes device
JP6886214B1 (en) * 2020-05-12 2021-06-16 烟台大学Yantai University Various energy complementary heat pump drying equipment suitable for low temperature conditions
CN216668376U (en) * 2022-01-06 2022-06-03 浙江亚微精密机床有限公司 Heat exchanger capable of adjusting heat exchange area according to temperature change

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