CN111189301A - Poria cocos low-temperature drying system - Google Patents
Poria cocos low-temperature drying system Download PDFInfo
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- CN111189301A CN111189301A CN201911042412.0A CN201911042412A CN111189301A CN 111189301 A CN111189301 A CN 111189301A CN 201911042412 A CN201911042412 A CN 201911042412A CN 111189301 A CN111189301 A CN 111189301A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/0018—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using electric energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a poria cocos low-temperature drying system, which belongs to the technical field of poria cocos processing, and comprises a drying room, a water supply tank, a PLC (programmable logic controller), an electric heating device, a solar heat collecting device, a geothermal energy heating device, a drying coil pipe, a water return device and a hot water main pipe; the solar heat collecting device comprises a heat collecting pipe, a water storage tank, a first water inlet pipe and a first water outlet pipe, wherein a submersible pump is arranged in the water supply tank, the outlet of the submersible pump is connected with a water supply main pipe, one end of the first water inlet pipe is connected with the water supply main pipe, and the other end of the first water inlet pipe is connected with the inlet of the heat collecting pipe; the water return device comprises a water return pipe and a water return pump, one end of the water return pipe is connected with the outlet of the drying coil pipe, and the other end of the water return pipe is connected with the water return pump; the geothermal energy heating device is used for collecting geothermal energy; the electric heating device is used for electrically heating the water in the water supply tank; the PLC is used for controlling the electric heating device, the solar heat collecting device and the geothermal energy heating device to be switched for use, and the problem that the drying of the poria cocos is easily affected by local weather is solved.
Description
Technical Field
The invention relates to the technical field of poria cocos processing, in particular to a poria cocos low-temperature drying system.
Background
Poria is dried sclerotium of Poria cocos (Schw.) wolf of Polyporaceae. Digging for more than 7-9 months, removing silt after digging, piling up to generate sweat, spreading and drying until the surface is dry, then generating sweat, repeating for a plurality of times until wrinkles appear and most of internal water is lost, and drying in the shade to obtain Poria cocos; or cutting fresh Poria according to different parts, and drying in the shade to obtain Poria block and Poria tablet.
The existing poria cocos is dried in the shade usually, although the effect of drying the poria cocos can be achieved, the poria cocos is easily affected by local weather, if the temperature is high, if the air volume is large, the shade drying is fast, if the temperature is low, and if the air volume is small, the shade drying is slow. Generally speaking, the optimum temperature for drying Poria in the shade should be 30-32 deg.C, and too low a temperature will affect the color and shade drying efficiency of Poria, while too high a temperature will cause the properties of Poria to change greatly, and make it brittle and hard.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a poria cocos low-temperature drying system, which solves the problem that poria cocos drying is easily influenced by local weather.
In order to achieve the purpose, the invention provides the following technical scheme:
a Poria cocos low-temperature drying system comprises a drying room, a water supply tank, a PLC (programmable logic controller), an electric heating device, a solar heat collecting device, a geothermal energy heating device, a drying coil pipe, a water return device and a hot water main pipe;
a floor for spreading poria cocos is arranged in the drying room, and the drying coil is positioned below the floor and is in contact with the bottom surface of the floor;
a supporting plate is fixed at the top of the drying room, is semi-elliptical and gradually reduces in height from the middle to the periphery;
the solar heat collecting device is used for collecting solar heat energy and comprises a heat collecting pipe, a water storage tank, a first water inlet pipe and a first water outlet pipe, a submersible pump is arranged in the water supply tank, the outlet of the submersible pump is connected with a water supply main pipe, one end of the first water inlet pipe is connected with the water supply main pipe, and the other end of the first water inlet pipe is connected with the inlet of the heat collecting pipe;
the heat collecting pipe is spirally wound on the outer surface of the supporting plate, the lower end of the heat collecting pipe is connected with the first water inlet pipe, the upper end of the heat collecting pipe is connected with the inlet of the water storage tank, the water storage tank is fixed on the top of the supporting plate and the drying room, one end of the first water outlet pipe is connected with the outlet of the water storage tank, the other end of the first water outlet pipe is connected with the hot water main pipe, and the hot water main pipe is connected with the;
the water return device comprises a water return pipe and a water return pump, one end of the water return pipe is connected with the outlet of the drying coil pipe, the other end of the water return pipe is connected with the water return pump, and the water return pump is used for pumping water in the drying coil pipe back to the water supply tank;
the geothermal energy heating device is used for collecting geothermal energy and is respectively connected with the water supply main pipe and the hot water main pipe;
the electric heating device is used for electrically heating the water in the water supply tank and is respectively connected with the water supply main pipe and the hot water main pipe;
the PLC is used for controlling the electric heating device, the solar heat collecting device and the geothermal energy heating device to be switched for use.
More preferably: the top of the drying room is provided with a roof, and the supporting plate is fixed on the roof;
a supporting column and a reinforcing plate are fixed on the inner surface of the supporting plate, the reinforcing plate is spirally wound on the inner surface of the supporting plate, the upper end of the supporting column is fixed on the reinforcing plate, and the lower end of the supporting column is fixed on the top of the drying room;
the bottom of the water storage tank is fixed with supporting legs which are fixed on the roof;
the first water outlet pipe penetrates through the top of the drying room downwards.
More preferably: the solar heat collecting device also comprises a reflux device, and the reflux device comprises a reflux pipe and a reflux pump;
the water storage tank is provided with a backflow port, one end of the backflow pipe is connected with the backflow port of the water storage tank, the other end of the backflow pipe is connected with the backflow pump, and the outlet of the backflow pump is connected with the first water inlet pipe.
More preferably: a first valve is arranged on the first water inlet pipe, a second valve is arranged on the first water outlet pipe, and a third valve is arranged on the return pipe;
the first valve, the second valve and the third valve are all electromagnetic valves and are respectively controlled by the PLC;
the water return pump, the reflux pump and the submersible pump are all controlled by the PLC.
More preferably: the geothermal energy heating device comprises a second water inlet pipe, a geothermal collecting coil pipe, a heat source well, a second water outlet pipe and a water supply pump;
the heat source well is located 90-150m underground, the geothermal collecting coil pipe is located in the heat source well, one end of the second water inlet pipe is connected with the water supply main pipe, the other end of the second water inlet pipe extends to the underground and is connected with the geothermal collecting coil pipe, the outlet of the geothermal collecting coil pipe is connected with the inlet of the water supply pump, one end of the second water outlet pipe is connected with the outlet of the water supply pump, and the other end of the second water outlet pipe is connected with the hot water main pipe.
More preferably: a fourth valve is arranged on the second water inlet pipe, a fifth valve is arranged on the second water outlet pipe, and the fourth valve and the fifth valve are both electromagnetic valves;
the fourth valve and the fifth valve are controlled by the PLC, and the water supply pump is controlled by the PLC.
More preferably: the electric heating device comprises a water heater, a third water inlet pipe and a third water outlet pipe;
one end of the third water inlet pipe is connected with the water supply main pipe, the other end of the third water inlet pipe is connected with the water heater inlet, one end of the third water outlet pipe is connected with the water heater outlet, and the other end of the third water outlet pipe is connected with the hot water main pipe.
More preferably: a sixth valve is arranged on the third water inlet pipe, a seventh valve is arranged on the third water outlet pipe, and the sixth valve and the seventh valve are both electromagnetic valves;
the sixth valve, the seventh valve and the water heater are all controlled by the PLC.
More preferably: the drying room is provided with the multilayer from top to bottom and is used for paving the floor of indian bread, middle level and upper strata the floor bottom all is provided with reinforced concrete layer, reinforced concrete layer is located dry coil pipe below, reinforced concrete layer upper surface coating has waterproof coating.
More preferably: the heat collecting pipe is a black pipeline, and the supporting plate is made of aluminum alloy.
In conclusion, the invention has the following beneficial effects: the switching use of the electric heating device, the solar heat collecting device and the geothermal energy heating device is realized, so that the heating is realized through the solar heat collecting device in the sunny day, the heating is realized through the geothermal energy heating device in the cold weather in winter, and the heating is realized through the electric heating device in the rest days. Can effectively utilize solar energy and geothermal energy, is more convenient to use, saves energy and protects the environment. The traditional poria cocos is dried in the shade by virtue of natural wind and temperature, is greatly influenced by weather and is poor in operability, but the method effectively combines the modes of electric heating, solar heat energy and geothermal heat energy for heating, can be used in summer or winter no matter day or night, rainy weather or sunny weather, and can ensure that the poria cocos is dried in the shade at a proper temperature, so that the poria cocos drying efficiency and drying quality are improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for embodying the structure of a Poria cocos low-temperature drying system;
fig. 2 is a schematic partial structure diagram of the embodiment, which is mainly used for embodying the structure of the solar heat collecting device.
In the figure, 1, a drying room; 2. a water supply tank; 3. a PLC controller; 4. a submersible pump; 51. a water heater; 52. a third water inlet pipe; 53. a sixth valve; 54. a third water outlet pipe; 55. a seventh valve; 6. a water main; 701. a second water inlet pipe; 702. a fourth valve; 703. a heat source well; 704. a geothermal collecting coil; 705. a water supply pump; 706. a second water outlet pipe; 707. a cold water pipe; 708. a ninth valve; 709. a standby pipe; 710. a tenth valve; 711. a fifth valve; 81. a first water inlet pipe; 82. a first valve; 83. a branch pipe; 84. an eighth valve; 85. a heat collecting pipe; 86. a water storage tank; 871. a return pipe; 872. a third valve; 873. a reflux pump; 88. a second valve; 89. a first water outlet pipe; 91. a water return pump; 92. a water return pipe; 10. a hot water main; 11. a support plate; 12. a reinforcing plate; 13. a support pillar; 14. a support leg; 15. a floor; 16. and (5) drying the coil.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): a Poria low-temperature drying system is shown in figures 1 and 2 and comprises a drying room 1, a water supply tank 2, a PLC (programmable logic controller) 3, an electric heating device, a solar heat collecting device, a geothermal energy heating device, a drying coil pipe 16, a water return device and a hot water main pipe 10. The drying room 1 is internally provided with a floor 15 for spreading tuckahoe, and a drying coil 16 is positioned below the floor 15 and is contacted with the bottom surface of the floor 15. In order to reasonably utilize the space area of the drying room 1 and improve the drying efficiency, specifically, a plurality of layers of floors 15 for spreading poria cocos are arranged above and below the drying room 1, and a drying coil pipe 16 is laid below each layer of the floors 15. The bottom of the middle floor 15 and the bottom of the upper floor 15 are both provided with reinforced concrete layers, the reinforced concrete layers are positioned below the drying coil 16, the upper surfaces of the reinforced concrete layers are coated with waterproof coatings, and the waterproof coatings are nano waterproof coatings. In this embodiment, the drying room 1 is provided with two layers.
In the above technical scheme, during construction, after the waterproof coating is coated, a layer of concrete should be coated on the surface of the waterproof coating, and before the concrete is solidified, the drying coil 16 is laid on the waterproof coating, and the floor 15 is laid on the waterproof coating, so that after the concrete is solidified, the drying coil 16 is embedded in the concrete, and the floor 15 is laid above the concrete and the drying coil 16, thereby reducing looseness of the floor 15 and the drying coil 16. Meanwhile, the waterproof floor can play a good waterproof role, avoids 15 accumulated water on the lower floor caused by water leakage of the upper drying coil pipe 16, and can effectively prevent the accumulated water from permeating.
Referring to fig. 1 and 2, a supporting plate 11 is fixed on the top of the drying room 1, and the supporting plate 11 is semi-elliptical and gradually decreases in height from the middle to the periphery. The top of the drying room 1 is provided with a roof, and the supporting plate 11 is fixed on the roof. The solar heat collecting device is used for collecting solar heat energy and comprises a heat collecting pipe 85, a water storage tank 86, a backflow device, a first water inlet pipe 81 and a first water outlet pipe 89. Be equipped with immersible pump 4 in the feed tank 2, immersible pump 4 exit linkage has water main 6, and first inlet tube 81 one end is connected with water main 6, the other end and thermal-collecting tube 85 access connection. The heat collecting pipe 85 is spirally wound and fixed on the outer surface of the supporting plate 11, the lower end of the heat collecting pipe 85 is an inlet and is connected with the first water inlet pipe 81, and the upper end of the heat collecting pipe is an outlet and is connected with an inlet of the water storage tank 86. One end of a first water outlet pipe 89 is connected with an outlet of the water storage tank 86, the other end of the first water outlet pipe downwards penetrates through the middle of the roof and is connected with a hot water main pipe 10, and the hot water main pipe 10 is connected with an inlet of the drying coil pipe 16. The heat collecting pipes 85 are black pipes, and the supporting plate 11 is made of aluminum alloy.
In the above technical solution, in order to enable the heat collecting tube 85 to receive sunlight from the periphery of the drying room 1, specifically, the supporting plate 11 is set to be semi-elliptical, the heat collecting tube 85 is spirally wound on the outer surface of the supporting plate 11, meanwhile, the heat collecting tube 85 is set to be a black pipeline, and the supporting plate 11 is made of aluminum alloy. The black pipeline can better absorb the 'heat' of the sun, and the aluminum alloy is light in weight, corrosion-resistant, has better absorptivity, is heated quickly, can fully absorb the solar heat and transmit the solar heat to the heat collecting pipe 85, and is convenient for water in the heat collecting pipe 85 to be heated quickly. The sun can be fully utilized, and the heat collecting pipe 85 is heated by exposure, so that the water in the heat collecting pipe 85 is quickly heated and stored in the water storage tank 86. The supporting plate 11 is arranged in a semi-elliptical shape, so that rainwater can flow away around the supporting plate 11 conveniently.
Referring to fig. 1 and 2, the water return device includes a water return pipe 92 and a water return pump 91, wherein one end of the water return pipe 92 is connected to an outlet of the drying coil 16, and the other end is connected to the water return pump 91. The water return pump 91 is used for pumping water in the drying coil 16 back to the water supply tank 2, so that water circulation is realized, and the energy conservation and environmental protection are realized. The reflux unit includes a reflux tube 871 and a reflux pump 873. The water storage tank 86 is provided with a return port, one end of a return pipe 871 is connected with the return port of the water storage tank 86, the other end is connected with a return pump 873, and the outlet of the return pump 873 is connected with the first water inlet pipe 81. The first inlet pipe 81 is provided with a first valve 82, the first outlet pipe 89 is provided with a second valve 88, and the return pipe 871 is provided with a third valve 872. The first valve 82, the second valve 88 and the third valve 872 are all solenoid valves and are controlled to open and close by the PLC controller 3. The water return pump 91, the submersible pump 4 and the reflux pump 873 are all controlled by the PLC 3.
In the above technical solution, the PLC controller 3 may control start and stop of the water return pump 91, the submersible pump 4, and the return pump 873, and start and stop of the first valve 82, the second valve 88, and the third valve 872, and simultaneously adjust the rotation speeds of the water return pump 91, the submersible pump 4, and the return pump 873, and the flow rates of the first valve 82, the second valve 88, and the third valve 872. Under the sunny weather of daytime, the steerable immersible pump 4 of PLC controller 3 and backwash pump 873 are opened, and first valve 82 and third valve 872 are opened for the water in the feed water tank 2 enters into thermal-collecting tube 85 through first inlet tube 81 and heats, enters into in the storage water tank 8 after the heating. After the hot water in the water storage tank 8 is stabilized at 30-34 ℃, the second valve 88 and the water return pump 91 are opened to allow the hot water to enter the drying coil 16 to heat the poria cocos paved on the floor 15, and the heated poria cocos is pumped back to the water supply tank 2 through the water return pump 91. Referring to fig. 1 and 2, in order to facilitate the control of the water temperature in the water storage tank 86 and prevent the water temperature from overheating, the first water inlet pipe 81 is connected with a branch pipe 83 behind the first valve 82, an eighth valve 84 is installed on the branch pipe 83, and the eighth valve 84 is an electromagnetic valve and is controlled by the PLC controller 3. The branch pipe 83 has one end connected to the first water inlet pipe 81 and the other end connected to the water storage tank 86. When the water temperature is too high, cold water can be supplied through the branch pipe 83, and when the water temperature is too low, the cold water can flow back to the drying coil 16 through the return pipe 871 again to be heated again. The return line 871 and the branch line 83 are both disposed after the first valve 82.
Referring to fig. 1 and 2, a supporting column 13 and a reinforcing plate 12 are fixed on the inner surface of the supporting plate 11, the reinforcing plate 12 is spirally wound on the inner surface of the supporting plate 11, the upper end of the supporting column 13 is fixed on the reinforcing plate 12, and the lower end is fixed on the roof of the drying room 1. The water storage tank 86 is fixed on the top of the support plate 11 and the drying room 1, the bottom of the water storage tank 86 is fixed with the support legs 14, and the support legs 14 are fixed on the top of the room.
In the above technical solution, the support stability of the support plate 11 can be effectively improved, and the weight of the drying coil 16 is light, but the weight of the drying coil becomes heavy after water is introduced, so that the reinforcing plate 12 and the support column 13 are provided for improving the overall strength of the drying room 1.
Referring to fig. 1 and 2, the PLC controller 3 is used to control the electric heating device, the solar heat collecting device and the geothermal energy heating device to switch between use, so that the solar heat collecting device heats in sunny days, the geothermal energy heating device heats in cold days in winter, and the electric heating device heats in other times. Can effectively utilize solar energy and geothermal energy, is more convenient to use, saves energy and protects the environment. The geothermal energy heating device is used for collecting geothermal energy so as to enable the drying coil pipe 16 to supply heat through the geothermal energy, and the geothermal energy heating device is respectively connected with the water supply main pipe 6 and the hot water main pipe 10.
Referring to fig. 1 and 2, the geothermal energy heating apparatus includes a second water inlet pipe 701, a geothermal heat collecting coil 704, a heat source well 703, a second water outlet pipe 706, a cold water pipe 707, a spare pipe 709, and a water supply pump 705. Heat source wells 703 are located 90-150m underground, and preferably heat source wells 703 are located 100m underground. The geothermal collecting coil 704 is located in the heat source well 703, and one end of the second water inlet pipe 701 is connected with the water supply main 6, and the other end extends to the ground and is connected with the geothermal collecting coil 704. The outlet of the geothermal collecting coil 704 is connected with the inlet of the water supply pump 705, one end of the second water outlet pipe 706 is connected with the outlet of the water supply pump 705, and the other end is connected with the hot water manifold 10. A cold water pipe 707 has one end connected to the second water inlet pipe 701 and the other end connected to an outlet of the water supply pump 705, and a spare pipe 709 for connecting the electric heating apparatus to the second water outlet pipe 706. A fourth valve 702 is installed on the second water inlet pipe 701, a fifth valve 711 is installed on the second water outlet pipe 706, a ninth valve 708 is installed on the cold water pipe 707, and a tenth valve 710 is installed on the standby pipe 709. The fourth valve 702, the fifth valve 711, the ninth valve 708, and the tenth valve 710 are all solenoid valves. The PLC controller 3 may control the start and stop of the water supply pump 705 and the opening and closing of the fourth, fifth, ninth, and tenth valves 702, 711, 708, and 710, and simultaneously adjust the rotation speed of the water supply pump 705 and the flow rates of the fourth, fifth, ninth, and tenth valves 702, 711, 708, and 710.
In the above technical solution, in cold weather in winter, the PLC controller 3 may control the submersible pump 4 and the water supply pump 705 to be opened, and the fourth valve 702 and the fifth valve 711 to be opened, so that the water in the water supply tank 2 enters the geothermal heat collecting coil 704 through the second water inlet pipe 701 to be heated, enters the drying coil 16 to heat the poria cocos spreading on the floor 15, and is pumped back to the water supply tank 2 through the water return pump 91 after being heated. To facilitate control of the temperature of the water in the second outlet pipe 706 and to prevent the water from overheating, a cold water pipe 707 is used as a branch of the second inlet pipe 701 for communicating the second inlet pipe 701 and the second outlet pipe 706. When the water temperature is too high, cold water can be supplied through the cold water pipe 707, and when the water temperature is too low, the cold water can flow into the electric heating apparatus through the spare pipe 709.
Referring to fig. 1 and 2, an electric heating device for electrically heating water in the water service box 2 is connected to a water supply main 6 and a hot water main 10, respectively. The electric heating means comprise a boiler 51, a third water inlet pipe 52 and a third water outlet pipe 54. One end of a third water inlet pipe 52 is connected with the water supply main pipe 6, the other end of the third water inlet pipe is connected with an inlet of the water heater 51, one end of a third water outlet pipe 54 is connected with an outlet of the water heater 51, and the other end of the third water outlet pipe is connected with the hot water main pipe 10. A sixth valve 53 is arranged on the third water inlet pipe 52, a seventh valve 55 is arranged on the third water outlet pipe 54, and the sixth valve 53 and the seventh valve 55 are both solenoid valves. The opening, closing and passing flow of the sixth valve 53 and the seventh valve 55 are controlled by the PLC controller 3, and the water heater 51 is controlled by the PLC controller 3. The reserve pipe 709 has one end connected to the water heater 51 and the other end connected to the outlet of the water supply pump 705.
In the above technical solution, during the electric heating, the sixth valve 53 and the seventh valve 55 are opened, so that the water in the water supply tank 2 enters the water heater 51 through the third water inlet pipe 52 to be heated, enters the drying coil 16 to heat the poria cocos spreading on the floor 15, and is pumped back into the water supply tank 2 through the water return pump 91 after being heated.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.
Claims (10)
1. A poria cocos low-temperature drying system is characterized in that: the system comprises a drying room (1), a water supply tank (2), a PLC (programmable logic controller) controller (3), an electric heating device, a solar heat collecting device, a geothermal energy heating device, a drying coil pipe (16), a water return device and a hot water main pipe (10);
a floor (15) for paving poria cocos is arranged in the drying room (1), and the drying coil (16) is positioned below the floor (15) and is in contact with the bottom surface of the floor (15);
a supporting plate (11) is fixed at the top of the drying room (1), and the supporting plate (11) is semi-elliptical and gradually reduces in height from the middle to the periphery;
the solar heat collecting device is used for collecting solar heat energy and comprises a heat collecting pipe (85), a water storage tank (86), a first water inlet pipe (81) and a first water outlet pipe (89), a submersible pump (4) is arranged in the water supply tank (2), the outlet of the submersible pump (4) is connected with a water supply main pipe (6), one end of the first water inlet pipe (81) is connected with the water supply main pipe (6), and the other end of the first water inlet pipe is connected with the inlet of the heat collecting pipe (85);
the heat collecting pipe (85) is spirally wound on the outer surface of the supporting plate (11), the lower end of the heat collecting pipe (85) is connected with the first water inlet pipe (81), the upper end of the heat collecting pipe is connected with an inlet of the water storage tank (86), the water storage tank (86) is fixed on the top of the supporting plate (11) and the drying room (1), one end of the first water outlet pipe (89) is connected with an outlet of the water storage tank (86), the other end of the first water outlet pipe is connected with the hot water main pipe (10), and the hot water main pipe (10) is connected with an inlet of the drying coil pipe (16;
the water return device comprises a water return pipe (92) and a water return pump (91), one end of the water return pipe (92) is connected with an outlet of the drying coil pipe (16), the other end of the water return pipe is connected with the water return pump (91), and the water return pump (91) is used for pumping water in the drying coil pipe (16) back to the water supply tank (2);
the geothermal energy heating device is used for collecting geothermal energy and is respectively connected with the water supply main pipe (6) and the hot water main pipe (10);
the electric heating device is used for electrically heating the water in the water supply tank (2), and is respectively connected with the water supply main pipe (6) and the hot water main pipe (10);
the PLC (3) is used for controlling the electric heating device, the solar heat collecting device and the geothermal energy heating device to be switched for use.
2. The poria cocos low-temperature drying system as claimed in claim 1, wherein: the top of the drying room (1) is provided with a roof, and the supporting plate (11) is fixed on the roof;
a supporting column (13) and a reinforcing plate (12) are fixed on the inner surface of the supporting plate (11), the reinforcing plate (12) is spirally wound on the inner surface of the supporting plate (11), the upper end of the supporting column (13) is fixed on the reinforcing plate (12), and the lower end of the supporting column (13) is fixed on the roof of the drying room (1);
the bottom of the water storage tank (86) is fixedly provided with supporting legs (14), and the supporting legs (14) are fixed on the roof;
the first water outlet pipe (89) penetrates through the roof of the drying room (1) downwards.
3. The poria cocos low-temperature drying system as claimed in claim 1, wherein: the solar heat collecting device also comprises a reflux device, wherein the reflux device comprises a reflux pipe (871) and a reflux pump (873);
the water storage tank (86) is provided with a backflow port, one end of a backflow pipe (871) is connected with the backflow port of the water storage tank (86), the other end of the backflow pipe is connected with the backflow pump (873), and the outlet of the backflow pump (873) is connected with the first water inlet pipe (81).
4. The poria cocos low-temperature drying system as claimed in claim 3, wherein: a first valve (82) is installed on the first water inlet pipe (81), a second valve (88) is installed on the first water outlet pipe (89), and a third valve (872) is installed on the return pipe (871);
the first valve (82), the second valve (88) and the third valve (872) are all electromagnetic valves and are respectively controlled by the PLC (3);
the water return pump (91), the reflux pump (873) and the submersible pump (4) are all controlled by the PLC controller (3).
5. The poria cocos low-temperature drying system as claimed in claim 1, wherein: the geothermal energy heating device comprises a second water inlet pipe (701), a geothermal heat collecting coil pipe (704), a heat source well (703), a second water outlet pipe (706) and a water supply pump (705);
the heat source well (703) is located 90-150m underground, the geothermal collecting coil (704) is located in the heat source well (703), one end of the second water inlet pipe (701) is connected with the water supply main pipe (6), the other end of the second water inlet pipe extends to the underground and is connected with the geothermal collecting coil (704), the outlet of the geothermal collecting coil (704) is connected with the inlet of the water supply pump (705), one end of the second water outlet pipe (706) is connected with the outlet of the water supply pump (705), and the other end of the second water outlet pipe is connected with the hot water main pipe (10).
6. The poria cocos low-temperature drying system as claimed in claim 5, wherein: a fourth valve (702) is arranged on the second water inlet pipe (701), a fifth valve (711) is arranged on the second water outlet pipe (706), and the fourth valve (702) and the fifth valve (711) are both electromagnetic valves;
the fourth valve (702) and the fifth valve (711) are controlled by the PLC controller (3), and the water supply pump (705) is controlled by the PLC controller (3).
7. The poria cocos low-temperature drying system as claimed in claim 1, wherein: the electric heating device comprises a water heater (51), a third water inlet pipe (52) and a third water outlet pipe (54);
one end of the third water inlet pipe (52) is connected with the water supply main pipe (6), the other end of the third water inlet pipe is connected with an inlet of the water heater (51), one end of the third water outlet pipe (54) is connected with an outlet of the water heater (51), and the other end of the third water outlet pipe is connected with the hot water main pipe (10).
8. The poria cocos low-temperature drying system as claimed in claim 7, wherein: a sixth valve (53) is arranged on the third water inlet pipe (52), a seventh valve (55) is arranged on the third water outlet pipe (54), and the sixth valve (53) and the seventh valve (55) are both electromagnetic valves;
the sixth valve (53), the seventh valve (55) and the water heater (51) are all controlled by the PLC controller (3).
9. The poria cocos low-temperature drying system as claimed in claim 1, wherein: drying room (1) is provided with the multilayer from top to bottom and is used for paving the indian bread floor (15), middle level and upper strata floor (15) bottom all is provided with reinforced concrete layer, reinforced concrete layer is located drying coil (16) below, reinforced concrete layer upper surface coating has waterproof coating.
10. The poria cocos low-temperature drying system as claimed in claim 1, wherein: the heat collecting pipe (85) is a black pipeline, and the supporting plate (11) is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042412.0A CN111189301A (en) | 2019-10-30 | 2019-10-30 | Poria cocos low-temperature drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911042412.0A CN111189301A (en) | 2019-10-30 | 2019-10-30 | Poria cocos low-temperature drying system |
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| CN111189301A true CN111189301A (en) | 2020-05-22 |
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| CN201911042412.0A Pending CN111189301A (en) | 2019-10-30 | 2019-10-30 | Poria cocos low-temperature drying system |
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Application publication date: 20200522 |