CN112432457A - Medicinal material low temperature drying device based on solar thermoelectric effect - Google Patents

Medicinal material low temperature drying device based on solar thermoelectric effect Download PDF

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Publication number
CN112432457A
CN112432457A CN202110106997.9A CN202110106997A CN112432457A CN 112432457 A CN112432457 A CN 112432457A CN 202110106997 A CN202110106997 A CN 202110106997A CN 112432457 A CN112432457 A CN 112432457A
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China
Prior art keywords
temperature
solar
thermoelectric effect
medicinal material
air
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CN202110106997.9A
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Chinese (zh)
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陈莘莘
李庆华
但伶俐
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East China Jiaotong University
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East China Jiaotong University
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Priority to CN202110106997.9A priority Critical patent/CN112432457A/en
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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
    • F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/14—Chambers, containers, receptacles of simple construction
    • F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • 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
    • Y02E10/60—Thermal-PV hybrids

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

Abstract

The invention relates to a low-temperature drying device for medicinal materials, in particular to a low-temperature drying device for medicinal materials based on a solar thermoelectric effect. A medicinal material low-temperature drying device based on a solar thermoelectric effect comprises a drying box, a medicinal material storage rack, an airflow processing container, a thermoelectric effect component and a solar component. Utilize solar energy to form cold junction and hot junction for the semiconductor power supply, form to contact dry air current circulation, can realize continuous drying, the energy saving to the medicine on the medicinal material supporter.

Description

Medicinal material low temperature drying device based on solar thermoelectric effect
Technical Field
The invention relates to a low-temperature drying device for medicinal materials, in particular to a low-temperature drying device for medicinal materials based on a solar thermoelectric effect.
Background
For some heat-sensitive medicinal materials, hot air drying has more defects, freeze drying equipment is expensive and has higher energy consumption, and low-temperature drying is a method which can ensure drying quality and has relatively lower energy consumption.
The working principle of low-temperature drying is that at a relatively low temperature below 60 ℃, air with low relative humidity is used for absorbing moisture in the material, and under a limited temperature, the improvement of the humidity gradient between medium air and the surface of the material is an effective way for enhancing the drying efficiency. The low-temperature drying is divided into solution dehumidification, rotary wheel dehumidification and cooling dehumidification according to the dehumidification principle, wherein the solution dehumidification and the rotary wheel dehumidification both need complex regeneration systems, and the cooling dehumidification has the characteristics of simple construction and reliable operation.
The link of relatively consuming energy in the cooling, dehumidifying and low-temperature drying is a cooling and dehumidifying process and a reheating process after dehumidification, the two processes are that firstly, the high-temperature and high-humidity air absorbs cold energy to be cooled to a machine dew point, then water vapor in the air is condensed out to achieve the purpose of dehumidification, and then the low-temperature air is dried to absorb heat again to be heated so as to reduce relative humidity, thereby improving the moisture absorption capacity of the air.
In the project, two different devices are adopted to realize the processes of cooling, dehumidifying and heating, and the energy consumption is larger.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a medicinal material low-temperature drying device based on the solar thermoelectric effect, renewable energy solar energy is used as an energy source, the solar energy is converted into electric energy by using the solar photoelectric technology, and meanwhile, the thermoelectric effect is utilized to generate cold (cold end) at one end of a semiconductor and heat (hot end) at the other end of the semiconductor; the device can simultaneously meet the energy requirements of cooling, dehumidification and heating in the low-temperature drying process, and is a high-efficiency energy-saving device which can ensure the drying quality, has a simple structure and can reduce the energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a medicinal material low-temperature drying device based on a solar thermoelectric effect, which comprises:
the drying box comprises an air outlet on one side and an air inlet on the other side;
the medicinal material storage rack is arranged in the drying box;
the airflow treatment container is arranged on one side of the medicinal material shelf;
the thermoelectric effect component is arranged in the airflow processing container;
the solar component supplies power to the thermoelectric effect component body;
an air circulation channel is formed between the inside of the drying box and the inner space of the airflow processing container, the air goes out of the air outlet, passes through the airflow processing container and then enters the drying box from the air inlet, and the air in the drying box can take away redundant moisture in the medicine on the medicinal material shelf;
the thermoelectric effect component can remove moisture in the air passing through the airflow processing container by using thermoelectric effect and can heat the air with the moisture removed in the drying box.
As a further improvement of the above technical solution, the thermoelectric effect element is a semiconductor, the semiconductor is symmetrically arranged in the gas flow processing container, the symmetrical semiconductor divides the inner space of the gas flow processing container into three parts, the bottoms of the three parts of inner space are communicated with each other, the top of the inner space in the middle of the gas flow processing container is communicated with the air outlet of the drying oven, and the tops of the inner spaces at two sides of the gas flow processing container are communicated with the air inlet of the drying oven;
the semiconductor on two sides in the airflow treatment container comprises a cold end and a hot end, wherein one side of the semiconductor, which is in contact with the inner space in the middle of the airflow treatment container, is the cold end, and the other side of the semiconductor is the hot end.
As a further improvement of the above technical solution, the solar module includes a solar photovoltaic heat collection composite panel, a controller and a storage battery, the solar photovoltaic heat collection composite panel is electrically connected to the controller, the storage battery is electrically connected to the controller, the positive and negative electrodes of the storage battery are respectively connected to the hot ends of the semiconductors on both sides, and the cold ends of the semiconductors on both sides are electrically connected to each other.
As a further improvement of the above technical solution, a first connecting pipeline is arranged between the air outlet of the drying box and the inner space in the middle of the airflow treatment container, and the first connecting pipeline is communicated with the top of the inner space in the middle of the airflow treatment container and the air outlet of the drying box;
the air inlet of the drying box is provided with a second connecting pipeline, the top of the inner space on one side of the air flow processing container is provided with a first communicating pipeline, the top of the inner space on the other side of the air flow processing container is provided with a second communicating pipeline, and the first communicating pipeline and the second communicating pipeline are both communicated with the second connecting pipeline.
As a further improvement of the technical scheme, a first differential pressure fan is arranged at the air outlet of the drying box.
As a further improvement of the above technical scheme, the system further comprises a second differential pressure fan and a third differential pressure fan, and the second differential pressure fan and the third differential pressure fan are respectively arranged at the communication positions of the middle inner space of the airflow treatment container and the inner spaces at the two sides of the airflow treatment container.
As a further improvement of the technical scheme, the air flow treatment device further comprises a water storage plate and a water drain valve, wherein the water storage plate is detachably arranged at the inner bottom end of the air flow treatment container, and the water drain valve is arranged at the bottom of the air flow treatment container.
As a further improvement of the above technical solution, the gas flow treatment container further comprises flow baffle plates, wherein the flow baffle plates are symmetrically arranged in the inner space in the middle of the gas flow treatment container, the flow baffle plates on both sides are arranged in an array along the vertical direction at intervals in a staggered manner, and opposite ends of the flow baffle plates on both sides are inclined downwards.
As a further improvement of the above technical solution, the air conditioner further comprises a heat exchanger, a water pipe and a second temperature sensor, wherein the heat exchanger is arranged in the second connecting pipeline, and the heat exchanger can heat air flowing out of the first connecting pipeline and the second connecting pipeline;
the second temperature sensor is arranged in the second connecting pipeline and can monitor the temperature of air flowing out of the first connecting pipeline and the second connecting pipeline;
the solar energy photoelectric heat collection combined plate heat exchanger is characterized in that the water pipe is arranged between the heat exchanger and the solar energy photoelectric heat collection combined plate, a water supply variable frequency pump is arranged on the water pipe, circulating water is contained in the water pipe and can transfer heat received by the solar energy photoelectric heat collection combined plate to the heat exchanger, and a bypass valve is arranged between the water pipes.
As a further improvement of the above technical solution, the drying device further comprises a first temperature sensor, wherein the first temperature sensor is arranged in the drying oven and is used for monitoring the temperature in the drying oven.
The invention has the beneficial effects that: 1. high-temperature high-humidity gas which takes away moisture in the medicine in the drying box enters a cooling cavity formed between a first cold end and a second cold end under the action of a first pressure difference fan, the high-temperature high-humidity gas is cooled by absorbed heat in the cooling cavity, condensed and dehumidified, and then the high-temperature high-humidity gas is divided into two paths of gas which flow through a first hot end, a second hot end and a heating cavity formed between the side walls of the airflow treatment container respectively to absorb heat and rise temperature, the high-temperature low-humidity gas after rising temperature enters the drying box, the moisture in the medicine is absorbed, the material moisture is absorbed and then enters the airflow treatment container through an air outlet on the left side of.
2. The solar energy is utilized to supply power to the semiconductor to form a cold end and a hot end, so that the moisture in the medicinal materials is absorbed, the energy is saved, and the cooling and dehumidifying structure is simple, has no moving parts and is reliable in operation.
3. The flow baffles are symmetrically arranged in the inner space in the middle of the air flow treatment container, the flow baffles on two sides are staggered at intervals and are arranged in an array along the vertical direction, and the flow baffles are arranged in the cooling cavity, so that on one hand, heat transfer is enhanced in order to strengthen flow field disturbance, on the other hand, condensed water can be interrupted to form a film, condensed water dripping is promoted, heat transfer resistance is reduced, and heat exchange efficiency is improved.
4. The heated gas passes through a second temperature sensor, when the temperature is lower than the low value of the set low-temperature drying temperature range, a water supply variable frequency pump is started, a bypass valve is closed, water is heated by a solar photoelectric heat collection combined plate and then flows through a heat exchanger to heat the gas, and the gas meets the requirement of low-temperature drying temperature; when the gas temperature is higher than the low-temperature drying set temperature, a water supply variable frequency pump is started, a bypass valve is opened to bypass tap water, and the tap water directly flows through a heat exchanger to cool gas so as to meet the low-temperature drying temperature requirement; when the gas temperature is within the set temperature range, the water supply variable frequency pump does not act; the gas after temperature rise is accurately controlled by solar energy and municipal water supply, so that energy is further saved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a block diagram of the working principle of the present invention.
Wherein the figures include the following reference numerals: 1. the drying box, 2, a medicinal material storage rack, 3, a first temperature sensor, 4, an air flow processing container, 5, a first hot end, 6, a first cold end, 7, a second hot end, 8, a second cold end, 9, a first connecting pipeline, 10, a first differential pressure fan, 11, a second differential pressure fan, 12, a third differential pressure fan, 13, a water storage plate, 14, a water drain valve, 15, a flow baffle plate, 16, a first communicating pipeline, 17, a second communicating pipeline, 18, a second connecting pipeline, 19, a solar photoelectric heat collection combined plate, 20, a controller, 21, a storage battery, 22, a heat exchanger, 23, a water pipe, 24, a second temperature sensor, 25, a bypass valve, 26 and a water supply variable frequency pump.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
As shown in fig. 1-2, a medicinal material low-temperature drying device based on a solar thermoelectric effect comprises a drying box 1, a medicinal material storage rack 2, an airflow processing container 4, a thermoelectric effect component and a solar component, wherein one side of the drying box 1 comprises an air outlet, the other side of the drying box comprises an air inlet, the medicinal material storage rack 2 is arranged in the drying box 1, the airflow processing container 4 is arranged on one side of the medicinal material storage rack 2, the thermoelectric effect component is arranged in the airflow processing container 4, and the solar component supplies power to the thermoelectric effect component; an air circulation channel is formed between the inside of the drying box 1 and the inner space of the airflow processing container 4, air flows out from the air outlet, passes through the airflow processing container 4 and then enters the drying box 1 from the air inlet, and redundant moisture in the medicine on the medicinal material placing frame 2 can be taken away by the air in the drying box 1; the thermoelectric effect module removes moisture from the air passing through the airflow treatment container 4 by using the thermoelectric effect and heats the air from which moisture has been removed, which is introduced into the drying box 1.
Furthermore, the thermoelectric effect component is a semiconductor, the semiconductors are symmetrically arranged in the airflow processing container 4, the symmetrical semiconductors divide the inner space of the airflow processing container 4 into three parts, the bottoms of the three parts of inner space are mutually communicated, the top of the inner space in the middle of the airflow processing container 4 is communicated with the air outlet of the drying box 1, and the tops of the inner spaces at two sides of the airflow processing container 4 are communicated with the air inlet of the drying box 1; the semiconductors on the two sides in the gas flow treatment container 4 respectively comprise a cold end and a hot end, one side of the semiconductor, which is in contact with the inner space in the middle of the gas flow treatment container 4, is the cold end, and the other side of the semiconductor is the hot end.
Further, the solar module comprises a solar photoelectric heat collection combined plate 19, a controller 20 and a storage battery 21, the solar photoelectric heat collection combined plate 19 is electrically connected with the controller 20, the storage battery 21 is electrically connected with the controller 20, the anode and the cathode of the storage battery 21 are respectively connected with the hot ends of the semiconductors on the two sides, and the cold ends of the semiconductors on the two sides are electrically connected with each other.
Further, a first connecting pipeline 9 is arranged between the air outlet of the drying box 1 and the inner space in the middle of the airflow treatment container 4, and the first connecting pipeline 9 is communicated with the top of the inner space in the middle of the airflow treatment container 4 and the air outlet of the drying box 1; the air inlet of the drying box 1 is provided with a second connecting pipeline 18, the top of the inner space on one side of the air flow processing container 4 is provided with a first communicating pipeline 16, the top of the inner space on the other side of the air flow processing container 4 is provided with a second communicating pipeline 17, and the first communicating pipeline 16 and the second communicating pipeline 17 are both communicated with the second connecting pipeline 18.
Further, a first differential pressure fan 10 is arranged at an air outlet of the drying box 1.
Further, the device also comprises a second differential pressure fan 11 and a third differential pressure fan 12, wherein the second differential pressure fan 11 and the third differential pressure fan 12 are respectively arranged at the communication positions of the middle inner space of the airflow treatment container 4 and the inner spaces at the two sides of the airflow treatment container 4.
The working principle is as follows: the first differential pressure fan 10 operates to suck air leftwards, certain negative pressure is formed in a cavity on the left side of the drying box 1, airflow flows from an air inlet on the right side of the drying box 1 to an air outlet under the action of the negative pressure, and compared with the differential pressure drying, the differential pressure drying has better airflow organization and drying efficiency;
the high-temperature high-humidity gas which takes away the moisture in the medicine in the drying box 1 enters the inner space in the middle of the airflow treatment container 4 under the action of the first differential pressure fan 10, and is divided into two airflows by the action of the second differential pressure fan 11 and the third differential pressure fan 12, and the two airflows respectively enter the second connecting pipeline 18 through the first communicating pipeline 16 and the second communicating pipeline 17. High-temperature and high-humidity gas passes through a cooling cavity formed between a first cold end 6 and a second cold end 8 of semiconductors at two sides through the inner space in the middle of an airflow processing container 4, the high-temperature and high-humidity gas is cooled by absorbed heat in the cooling cavity, condensed and dehumidified, moisture at the condensation part is accumulated at the bottom of the airflow processing container 4, a second differential pressure fan 11 and a third differential pressure fan 12 suck air upwards, the first differential pressure fan 10 is relayed to enable the cooling cavity to form certain negative pressure, airflow flowing and heat exchange are promoted in the same way, low-temperature gas after cooling and dehumidification flows through heating cavities formed between a first hot end 5 and a second hot end 7 and the side wall of the airflow processing container 4 respectively to absorb heat and heat, the high-temperature and low-humidity gas after heating is sucked from an air inlet at the right side of a drying box 1 under the action of the first differential pressure fan 10, and enters the airflow processing container 4 through, the medicine on the medicine storage rack 2 is circulated, and continuous drying can be realized.
Furthermore, the air flow treatment device also comprises a water storage plate 13 and a water drain valve 14, wherein the water storage plate 13 is detachably arranged at the inner bottom end of the air flow treatment container 4, the water storage plate 13 can collect the condensed water at the bottom of the air flow treatment container 4, the water drain valve 14 is arranged at the bottom of the air flow treatment container 4, and the water drain valve 14 is opened to discharge the condensed water.
Further, the air flow treatment device also comprises flow baffle plates 15, the flow baffle plates 15 are symmetrically arranged in the inner space in the middle of the air flow treatment container 4, the flow baffle plates 15 on two sides are arranged in an array mode along the vertical direction at intervals, the flow baffle plates 15 are arranged in the cooling cavity, on one hand, heat transfer is enhanced for enhancing flow field disturbance, on the other hand, condensed water can be interrupted to form a film, condensed water dripping is promoted, heat transfer resistance is reduced, heat exchange efficiency is improved, opposite ends of the flow baffle plates 15 on two sides are inclined downwards, the condensed water flows into the water receiving tray 13 below, and water cannot be accumulated on the flow baffle plates 15.
Further, the air conditioner also comprises a heat exchanger 22, a water pipe 23 and a second temperature sensor 24, wherein the heat exchanger 22 is arranged in the second connecting pipeline 18, and the heat exchanger 22 can regulate the temperature of the air flowing out of the first connecting pipeline 16 and the second connecting pipeline 17; a second temperature sensor 24 is provided in the second connecting duct 18, the second temperature sensor 24 being capable of monitoring the temperature of the air flowing out of the first communicating duct 16 and the second communicating duct 17; a water pipe 23 is arranged between the heat exchanger 22 and the solar photoelectric heat collection combined plate 19, a water supply variable frequency pump 26 is arranged on the water pipe 23, circulating water is contained in the water pipe 23 and can transfer heat received by the solar photoelectric heat collection combined plate 19 to the heat exchanger 22, and a bypass valve 25 is arranged between the water pipes 23.
The heated gas passes through a second temperature sensor 24, when the temperature is lower than the low value of the low-temperature drying set temperature range, a water supply variable frequency pump 26 is started, a bypass valve 25 is closed, water is heated by a solar photoelectric heat collection combined plate 19 and then flows through a heat exchanger 22 to heat the gas, and the gas is enabled to reach the low-temperature drying temperature requirement; when the gas temperature is higher than the low-temperature drying set temperature, the water supply variable frequency pump 26 is started, the bypass valve 25 is opened to bypass tap water, and the tap water directly flows through the heat exchanger 22 to cool the gas so as to meet the low-temperature drying temperature requirement. However, when the gas temperature is within the set temperature range, the water supply inverter pump 26 is not operated.
Further, still include first temperature sensor 3, first temperature sensor 3 sets up in drying cabinet 1 for the temperature in the monitoring drying cabinet 1 prevents that the high temperature from making the active ingredient of medicinal material inefficacy.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a medicinal material low temperature drying device based on solar thermoelectric effect which characterized in that includes:
the drying box comprises an air outlet on one side and an air inlet on the other side;
the medicinal material storage rack is arranged in the drying box;
the airflow treatment container is arranged on one side of the medicinal material shelf;
the thermoelectric effect component is arranged in the airflow processing container;
the solar component supplies power to the thermoelectric effect component body;
an air circulation channel is formed between the inside of the drying box and the inner space of the airflow processing container, air flows out of the air outlet, passes through the airflow processing container and then enters the drying box from the air inlet, and the air in the drying box can take away redundant moisture in the medicine on the medicinal material shelf;
the thermoelectric effect component can remove moisture in the air passing through the airflow processing container by using the thermoelectric effect and can heat the air with the moisture removed in the drying box.
2. The medicinal material low-temperature drying device based on the solar thermoelectric effect as claimed in claim 1, wherein:
the thermoelectric effect component is a semiconductor, the semiconductors are symmetrically arranged in the airflow processing container, the symmetrical semiconductors divide the inner space of the airflow processing container into three parts, the bottoms of the three parts of inner space are mutually communicated, the top of the inner space in the middle of the airflow processing container is communicated with the air outlet of the drying box, and the tops of the inner spaces at two sides of the airflow processing container are communicated with the air inlet of the drying box;
the semiconductor on two sides in the airflow treatment container comprises a cold end and a hot end, wherein one side of the semiconductor, which is in contact with the inner space in the middle of the airflow treatment container, is the cold end, and the other side of the semiconductor is the hot end.
3. The medicinal material low-temperature drying device based on the solar thermoelectric effect as claimed in claim 2, wherein:
the solar module comprises a solar photoelectric heat collection combined plate, a controller and a storage battery, wherein the solar photoelectric heat collection combined plate is electrically connected with the controller, the storage battery is electrically connected with the controller, the positive electrode and the negative electrode of the storage battery are respectively connected with the hot ends of the semiconductors on the two sides, and the cold ends of the semiconductors on the two sides are electrically connected with each other.
4. The medicinal material low-temperature drying device based on the solar thermoelectric effect as claimed in claim 3, wherein:
a first connecting pipeline is arranged between the air outlet of the drying box and the inner space in the middle of the airflow treatment container, and the first connecting pipeline is communicated with the top of the inner space in the middle of the airflow treatment container and the air outlet of the drying box;
the air inlet of the drying box is provided with a second connecting pipeline, the top of the inner space on one side of the air flow processing container is provided with a first communicating pipeline, the top of the inner space on the other side of the air flow processing container is provided with a second communicating pipeline, and the first communicating pipeline and the second communicating pipeline are both communicated with the second connecting pipeline.
5. The medicinal material low-temperature drying device based on the solar thermoelectric effect as claimed in claim 4, wherein:
and a first differential pressure fan is arranged at the air outlet of the drying box.
6. The medicinal material low-temperature drying device based on the solar thermoelectric effect as claimed in claim 5, wherein:
the air flow treatment device is characterized by further comprising a second differential pressure fan and a third differential pressure fan, wherein the second differential pressure fan and the third differential pressure fan are respectively arranged at the communication positions of the inner space in the middle of the air flow treatment container and the inner spaces on two sides of the air flow treatment container.
7. The low-temperature medicinal material drying device based on the solar thermoelectric effect as claimed in any one of claims 1 to 6, wherein:
the water storage plate is detachably arranged at the inner bottom end of the air flow processing container, and the drain valve is arranged at the bottom of the air flow processing container.
8. The low-temperature medicinal material drying device based on the solar thermoelectric effect as claimed in any one of claims 1 to 6, wherein:
the device is characterized by further comprising flow baffles, wherein the flow baffles are symmetrically arranged in the inner space in the middle of the airflow treatment container, the flow baffles on two sides are arranged in an array along the vertical direction at intervals in a staggered mode, and opposite ends of the flow baffles on two sides are inclined downwards.
9. The low-temperature medicinal material drying device based on the solar thermoelectric effect as claimed in any one of claims 1 to 6, wherein:
the heat exchanger is arranged in the second connecting pipeline and can heat air flowing out of the first communicating pipeline and the second communicating pipeline;
the second temperature sensor is arranged in the second connecting pipeline and can monitor the temperature of air flowing out of the first connecting pipeline and the second connecting pipeline;
the solar energy photoelectric heat collection combined plate heat exchanger is characterized in that the water pipe is arranged between the heat exchanger and the solar energy photoelectric heat collection combined plate, a water supply variable frequency pump is arranged on the water pipe, circulating water is contained in the water pipe and can transfer heat received by the solar energy photoelectric heat collection combined plate to the heat exchanger, and a bypass valve is arranged between the water pipes.
10. The low-temperature medicinal material drying device based on the solar thermoelectric effect as claimed in any one of claims 1 to 6, wherein:
the drying oven is characterized by further comprising a first temperature sensor, wherein the first temperature sensor is arranged in the drying oven and used for monitoring the temperature in the drying oven.
CN202110106997.9A 2021-01-27 2021-01-27 Medicinal material low temperature drying device based on solar thermoelectric effect Pending CN112432457A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202430536U (en) * 2012-01-12 2012-09-12 无锡小天鹅股份有限公司 Novel clothes dryer
CN103123149A (en) * 2013-03-15 2013-05-29 苏州卫生职业技术学院 Semiconductor dehumidifier
KR20170030741A (en) * 2015-09-10 2017-03-20 주식회사 한송 Drying device for seafood using solar energy
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Application publication date: 20210302