CN113532042A - Drying system - Google Patents
Drying system Download PDFInfo
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- CN113532042A CN113532042A CN202010302001.7A CN202010302001A CN113532042A CN 113532042 A CN113532042 A CN 113532042A CN 202010302001 A CN202010302001 A CN 202010302001A CN 113532042 A CN113532042 A CN 113532042A
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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
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of agricultural product processing, in particular to a drying system which comprises a drying device and a heat exchange device, wherein the drying device comprises a drying component and a steam collecting component, the drying component is communicated with the steam collecting component, the heat exchange device comprises a cold accumulation water tank, a heat pump unit and a heat accumulation water tank which are sequentially communicated, the cold accumulation water tank is communicated with the steam collecting component, and the heat accumulation water tank is communicated with the drying component. The invention ensures the quality of the fruits and vegetables on the premise of ensuring the drying efficiency. In the drying process, the heat released by condensation of water vapor flashed out of the material can be used as a low-temperature heat source of a heat pump unit, and waste heat discharged by the material is fully utilized, so that the whole system is more energy-saving and efficient. Because the heating of the materials and the cooling of the water in the drying process have the asynchronism in time, the cold storage water tank and the heat storage water tank are adopted to respectively store hot water and flow state ice slurry and are used in corresponding time intervals, the system can be operated stably and reliably, and the problem of low energy utilization rate of the existing vacuum pulsation drying box can be solved.
Description
Technical Field
The invention relates to the technical field of agricultural product processing, in particular to a drying system.
Background
The fruit and vegetable has high water content, is not easy to store, can prolong the storage time by drying, and is beneficial to food storage. The common fruits and vegetables are dried in a hot air drying mode, the sugar content after drying is improved, the taste is suitable, the hot air drying processing is convenient, and the transportation and the storage of the fruits and vegetables are convenient.
The hot air drying is the most common drying mode, and has the advantages of simple drying equipment, simple operation and the like, but the hot air drying temperature is high, the high-temperature-resistant substances and the heat-sensitive substances are damaged, the nutrient components are easy to lose, the hot air drying speed is low, and the drying time is prolonged. Vacuum pulse drying is a way of drying by making the pressure change periodically. The drying time of the vacuum pulse drying is short, and because the equilibrium state of water evaporation is continuously broken, a larger channel can be formed inside the fruits and vegetables, so that the drying process is accelerated, the rehydration rate is increased, and better quality is obtained.
At present, steam is directly taken away or is condensed by water in the vacuum pulse drying box, and this part of heat is discharged into the air, does not collect, and the material is heated and the moisture entrapment is interval and periodic in the vacuum pulse drying, exists the asynchronism on the time, is difficult to realize in coordination on drying and steam entrapment, is unfavorable for the high-efficient steady operation of vacuum pulse drying equipment.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problems that the existing vacuum pulsation drying equipment does not fully collect and utilize heat released after water vapor is condensed, cannot realize cooperation between drying and vapor collection and is not beneficial to efficient and stable operation of the vacuum pulsation drying equipment.
(II) technical scheme
In order to solve the technical problem, the invention provides a drying system which comprises a drying device and a heat exchange device, wherein the drying device comprises a drying component and a steam collecting component, the drying component is communicated with the steam collecting component, the heat exchange device comprises a cold storage water tank, a heat pump unit and a heat storage water tank which are sequentially communicated, the cold storage water tank is communicated with the steam collecting component, and the heat storage water tank is communicated with the drying component.
The drying component comprises a drying box and a heat conducting plate laid in the drying box, and the heat conducting plate is communicated with the heat storage water tank.
And a first circulating pump is arranged on a pipeline for communicating the heat conducting plate with the heat storage water tank.
The vapor collection assembly comprises a sprayer, a heat exchanger and a water storage tank which are sequentially arranged from top to bottom, a first water inlet of the cold accumulation water tank is communicated with the water storage tank, and the sprayer is connected with a first water outlet of the cold accumulation water tank.
The cold storage water tank is arranged in the water storage tank, a first water inlet of the cold storage water tank is communicated with the submersible pump through a pipeline, and a second circulating pump is arranged on the pipeline through which the sprayer is communicated with a first water outlet of the cold storage water tank.
The drying device further comprises a vacuum assembly, the vacuum assembly comprises a vacuum box and a vacuum pump, the drying assembly and the steam collecting assembly are both located in the vacuum box, the vacuum pump is communicated with the vacuum box, and the communicated position corresponds to the position of the steam collecting assembly.
Wherein, still be equipped with the breather valve on the vacuum chamber.
The heat pump unit comprises an evaporator and a condenser which are communicated with each other to form a circulation loop, the evaporator is communicated with the cold storage water tank, and the condenser is communicated with the heat storage water tank.
The liquid outlet of the evaporator is communicated with the liquid inlet of the condenser, a compressor is arranged on a pipeline, and a throttling valve is arranged on a pipeline, communicated with the liquid outlet of the condenser, of the liquid inlet of the evaporator.
The evaporator is communicated with the cold storage water tank through a pipeline, a first water pump is arranged on the pipeline, and the condenser is communicated with the heat storage water tank through a pipeline, and a second water pump is arranged on the pipeline.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
according to the drying system provided by the embodiment of the invention, the materials are placed in the drying component and can be heated, the water in the materials is evaporated to form water vapor after the materials are heated, and the fluid ice slurry is arranged in the vapor collecting component, so that the water vapor flashed out of the materials is condensed through the fluid ice slurry, and the water vapor is recovered. In the drying process, during the ordinary pressure stage, the hot water in the heat storage water tank gets into dry subassembly, hot water carries out the heat exchange with the material, heat the material until the material reaches behind the uniform temperature, get into the vacuum stage, flow state ice slurry in the heat storage water tank gets into in the vapour collection subassembly, moisture in the material gasifies rapidly under the low pressure in the dry subassembly, vapor is caught when passing through the vapour collection subassembly, mix and form in liquid water gets into the cold storage water tank, resume the ordinary pressure again when the vacuum stage finishes, continue to carry out the heating process in the ordinary pressure stage, until the moisture of material is all removed in the dry box. In the cold accumulation ice making process, the heat pump unit is opened, water in the cold accumulation water tank enters the heat pump unit for heat exchange to form fluid state ice slurry, and the fluid state ice slurry returns to the cold accumulation water tank again and is stored in the cold accumulation water tank and can be sent back to the steam collection assembly again to serve as a cold source in the steam collection assembly; water in the heat storage water tank enters the heat pump unit to exchange heat so as to form hot water, and the obtained hot water returns to the heat storage water tank again and is stored in the heat storage water tank to be used as a heat source for drying materials.
The vacuum pulsation drying system combining the heat pump and the fluidized ice has high drying speed and good quality, and can ensure the quality of fruits and vegetables on the premise of ensuring the drying efficiency. In the drying process, the heat released by condensation of water vapor flashed out of the material can be used as a low-temperature heat source of a heat pump unit, so that the waste heat discharged by the material is fully utilized, and the whole system is more energy-saving and efficient. And because the heating of the material and the cooling of the moisture in the drying have the asynchronism in time, the cold storage water tank and the heat storage water tank are adopted to store hot water and flow state ice slurry respectively and are used in corresponding time intervals, so that the system can operate stably and reliably, and the problem of low energy utilization rate of the existing vacuum pulsation drying box can be solved.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions and the advantages brought by the technical features of the technical solutions described above, other technical features of the present invention and the advantages brought by the technical features of the technical solutions will be further explained with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a drying system according to an embodiment of the present invention.
In the figure:
1: a drying device; 11: a heating assembly; 12: a vapor collection assembly; 111: a drying oven; 112: a heat conducting plate; 121: a sprayer; 122: a heat exchanger; 123: a water storage tank; 124: a submersible pump;
2: a heat exchange device; 21: a cold storage water tank; 22: a heat pump unit; 23: a heat storage water tank; 221: an evaporator; 222: a condenser; 223: a compressor; 224: a throttle valve;
3: a vacuum assembly; 31: a vacuum box; 32: a vacuum pump; 33: a vent valve;
4: a first circulation pump;
5: a second circulation pump;
6: a first water pump;
7: and a second water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, unless otherwise specified, "plurality", "plural groups" means two or more, and "several", "several groups" means one or more.
As shown in fig. 1, the drying system provided by the embodiment of the present invention includes a drying device 1 and a heat exchange device 2, the drying device 1 includes a heating component 11 and a vapor collection component 12, the heating component 11 is communicated with the vapor collection component 12, the heat exchange device 2 includes a cold storage water tank 21, a heat pump unit 22 and a heat storage water tank 23 which are sequentially communicated, the cold storage water tank 21 is communicated with the vapor collection component 12, and the heat storage water tank 23 is communicated with the heating component 11.
According to the drying system provided by the embodiment of the invention, the heating component 11 is internally provided with the material and can heat the material, the water in the material is evaporated to form water vapor after the material is heated, and the steam collecting component 12 is internally provided with the flow state ice slurry, so that the water vapor flashed out of the material is condensed through the flow state ice slurry, and the water vapor is recovered. In the drying process, during the ordinary pressure stage, hot water in the heat accumulation water tank 23 gets into heating element 11, hot water exchanges heat with the material, heat the material until the material reaches certain temperature after, get into the vacuum stage, flow state ice thick liquid in the cold accumulation water tank 21 gets into in the vapour collection subassembly 12, moisture in the material in the heating element 11 gasifies rapidly under the low pressure, vapor is caught when passing through vapour collection subassembly 12, mix and form liquid water and get into in the cold accumulation water tank 21, resume the ordinary pressure again when the vacuum stage finishes, continue to carry out the heating process in the ordinary pressure stage, until the moisture of material is all removed in drying cabinet 111. In the cold accumulation and ice making process, the heat pump unit 22 is opened, water in the cold accumulation water tank 21 enters the heat pump unit 22 for heat exchange to form fluid state ice slurry, and the fluid state ice slurry returns to the cold accumulation water tank 21 again and is stored in the cold accumulation water tank 21 and can be sent back to the steam collection assembly 12 again to serve as a cold source in the steam collection assembly 12; the water in the heat storage water tank 23 enters the heat pump unit 22 for heat exchange to form hot water, and the obtained hot water returns to the heat storage water tank 23 again and is stored in the heat storage water tank 23 to be used as a heat source for drying materials.
The vacuum pulsation drying system combining the heat pump and the fluidized ice has high drying speed and good quality, and can ensure the quality of fruits and vegetables on the premise of ensuring the drying efficiency. In the drying process, the heat released by condensation of water vapor flashed out of the material can be used as a low-temperature heat source of the heat pump unit 22, so that the waste heat discharged by the material is fully utilized, and the whole system is more energy-saving and efficient. And because the heating of material and to moisture cooling have the asynchronism in time in the drying, adopt cold-storage and heat-storage water tank 23 to store hot water and flow state ice slurry respectively, use at corresponding period, can let the system reliable and stable operation, can overcome the current problem that the vacuum pulsation drying cabinet 111 energy utilization is not high.
Wherein, the heating assembly 11 comprises a drying box 111 and a heat conducting plate 112 laid in the drying box 111, and the heat conducting plate 112 is communicated with the heat storage water tank 23. In this embodiment, a plurality of layers of heat conducting plates 112 are disposed in the drying box 111, a material is placed on the heat conducting plates 112, the material is lifted and heated, the heat conducting plates 112 are hollow structures and are communicated with the heat storage water tank 23 of the heat exchanging device 2, and the material is heated through the internal circulation flow of the hot water tank heat conducting plates 112 in the heat storage water tank 23. The heat conducting plate 112 is adopted to directly heat the materials, so that the materials are heated more fully. In other embodiments, the heat conductive plate 112 may be formed by assembling heat conductive pipes.
Wherein, a first circulating pump 4 is arranged on a pipeline of the heat conducting plate 112 communicated with the heat storage water tank 23. In this embodiment, the water inlet of the heat conducting plate 112 is communicated with the first water outlet of the heat storage water tank 23 through a pipeline, and the pipeline is provided with the first circulating pump 4, the water outlet of the heat conducting plate 112 is communicated with the first water inlet of the heat storage water tank 23 through a pipeline, so that in the drying process, hot water flows in a circulating manner between the heat conducting plate 112 and the heat storage water tank 23, the heat is fully utilized, and meanwhile, the drying temperature is prevented from being too high, and the drying quality of fruit and vegetable materials is damaged.
The vapor collection assembly 12 comprises a sprayer 121, a heat exchanger 122 and a water storage tank 123 which are sequentially arranged from top to bottom, a first water inlet of the cold storage water tank 21 is communicated with the water storage tank 123, and the sprayer 121 is connected with a first water outlet of the cold storage water tank 21. In this embodiment, in the drying process, the fluid ice slurry in the cold storage water tank 21 flows into the sprayer 121 through the first water outlet of the cold storage water tank 21, the sprayer 121 sprays the heat exchanger 122 below the sprayer, the water vapor flashed out of the material of the heating component 11 contacts the heat exchanger 122 and then is condensed through the fluid ice slurry, the condensed mixed liquid formed by the fluid ice slurry falls into the water storage tank 123 below the heat exchanger 122, the water storage tank 123 is communicated with the first water inlet of the cold storage water tank 21, and the water in the water storage tank 123 flows back to the cold storage water tank 21, so that the water vapor evaporated out of the material is effectively recovered and recycled. In this embodiment, the heat exchanger 122 adopts a direct contact type vapor trap, the sprayer 121 adopts a spray head, the temperature of the ice-water mixture is low, the vapor trapping efficiency is high, and the system can operate efficiently and stably.
Wherein, be equipped with immersible pump 124 in the storage water tank 123, the first water inlet of cold-storage water tank 21 passes through the pipeline intercommunication with immersible pump 124, is equipped with second circulating pump 5 on the pipeline of shower 121 and the first delivery port intercommunication of cold-storage water tank 21. In this embodiment, the submersible pump 124 may pump water in the storage tank 123 into the cold storage water tank 21 in the storage tank 123. The second circulation pump 5 may control the time and amount of the cold storage water tank 21 to supply the fluid ice slurry to the shower 121.
Wherein, drying device 1 still includes vacuum module 3, and vacuum module 3 includes vacuum box 31 and vacuum pump 32, and heating element 11 and vapour collection component 12 all are located vacuum box 31, and vacuum pump 32 communicates with vacuum box 31, and the communication position corresponds the position that vapour collection component 12 is located. In this embodiment, the drying device 1 is a drying apparatus in a vacuum state, the heating component 11 and the vapor collection component 12 are disposed in the vacuum box 31, the vacuum pump 32 is communicated with the vapor collection component 12, and the drying rate is increased by extracting air in the region of the vapor collection component 12 to form a pressure difference. The vacuum pump 32 is connected with the tail end of the passage of the ice water heat exchanger 122 so as to achieve the purpose of extracting water vapor flashed out from the material and gathering the water vapor into the vapor collection assembly 12, the vacuum action of the vacuum pump 32 on the vacuum box 31 enables the moisture of the material to be evaporated at a low temperature, and the material is condensed by the vapor collection assembly 12, so that the drying process is completed. In this embodiment, the vacuum pump 32 is an oil pump.
Wherein, the vacuum box 31 is also provided with a vent valve 33. In this embodiment, during the drying process, when the vacuum drying stage in the drying apparatus 1 is completed, the vent valve 33 is opened to return the pressure in the vacuum box 31 to the normal pressure, and the heating process in the normal pressure drying stage is continued until the moisture in the material in the drying box 111 is completely removed.
The heat pump unit 22 includes an evaporator 221 and a condenser 222 which are communicated with each other to form a circulation loop, the evaporator 221 is communicated with the cold storage water tank 21, and the condenser 222 is communicated with the heat storage water tank 23. A pipeline for communicating the liquid outlet of the evaporator 221 with the liquid inlet of the condenser 222 is provided with a compressor 223, and a pipeline for communicating the liquid inlet of the evaporator 221 with the liquid outlet of the condenser 222 is provided with a throttle valve 224. In this embodiment, the water outlet of the evaporator 221 is communicated with the second water inlet of the cold storage water tank 21, the water inlet of the evaporator 221 is communicated with the second water outlet of the cold storage water tank 21, the water outlet of the condenser 222 is communicated with the second water inlet of the hot storage water tank 23, and the water inlet of the condenser 222 is communicated with the second water outlet of the hot storage water tank 23. In the process of cold accumulation and ice making, water in the cold accumulation water tank 21 enters the evaporator 221 through the second water outlet thereof for heat exchange to form fluid ice slurry, and the fluid ice slurry returns to the cold accumulation water tank 21 through the second water inlet of the cold accumulation water tank 21 again; the water of the hot water storage tank 23 enters the condenser 222 through the second water outlet thereof to exchange heat to form hot water, and the obtained hot water returns to the hot water storage tank 23 through the second water inlet of the hot water storage tank 23 again.
In this embodiment, the evaporator 221 and the refrigerant in the condenser 222 perform heat exchange in a circulation circuit, the refrigerant in the evaporator 221 performs heat exchange with water entering the evaporator 221, the water becomes ice slurry, the refrigerant is heated, is compressed by the compressor 223 to be heated again, and then flows into the condenser 222, the refrigerant in the condenser 222 performs heat exchange with the water entering the condenser 222, the water is heated to be hot water, the refrigerant is cooled and flows back into the evaporator 221 through pressure regulation by the throttle 224.
A first water pump 6 is arranged on a pipeline for communicating the evaporator 221 with the cold storage water tank 21, and a second water pump 7 is arranged on a pipeline for communicating the condenser 222 with the hot storage water tank 23.
The working process of the invention is divided into a drying process and a cold accumulation ice making process, wherein in the cold accumulation ice making process: the heat pump unit 22 is started, water in the cold accumulation water tank 21 enters the evaporator 221 through the first water pump 6, heat exchange is carried out between the water and the evaporator 221 to form flow state ice slurry, and the flow state ice slurry returns to the cold accumulation water tank 21 again; the water in the hot water storage tank 23 enters the condenser 222 through the second water pump 7 to be subjected to heat exchange to form hot water, and the obtained hot water is stored in the hot water storage tank 23. In the drying process: in the normal pressure stage, hot water in the heat storage water tank 23 enters the heat conducting plate 112 through the first circulating pump 4 to heat the materials; when the materials reach a certain temperature, drying in a vacuum stage is carried out, firstly, the first circulating pump 4 is closed, the submersible pump 124 and the second circulating pump 5 are opened, then, the vacuum pump 32 is opened to vacuumize the area where the vapor collection component 12 in the vacuum box 31 is located, the fluid state ice slurry is sprayed onto the heat exchanger 122 through the second circulating pump 5, moisture in the materials in the drying box 111 is quickly gasified under low pressure, the vapor is captured when passing through the heat exchanger 122, the mixed liquid water enters the water storage tank 123, and the water in the water storage tank 123 enters the cold storage water tank 21 through the submersible pump 124; at the end of the vacuum phase, the vent valve 33 is opened until the atmospheric pressure is restored, and the heating process in the atmospheric phase is continued until the moisture in the material in the drying box 111 is completely removed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A drying system, characterized by: including drying device and heat transfer device, drying device includes drying component and vapour and collects the subassembly, drying component with the subassembly intercommunication is collected to vapour, heat transfer device is including cold-storage water tank, heat pump set and the hot water storage tank that communicates in proper order, the cold-storage water tank with the subassembly intercommunication is collected to vapour, the hot water storage tank with drying component intercommunication.
2. The drying system of claim 1, wherein: the drying component comprises a drying box and a heat conducting plate laid in the drying box, and the heat conducting plate is communicated with the heat storage water tank.
3. The drying system of claim 2, wherein: and a first circulating pump is arranged on a pipeline for communicating the heat conducting plate with the heat storage water tank.
4. The drying system of claim 1, wherein: the vapor collection assembly comprises a sprayer, a heat exchanger and a water storage tank which are sequentially arranged from top to bottom, a first water inlet of the cold accumulation water tank is communicated with the water storage tank, and the sprayer is connected with a first water outlet of the cold accumulation water tank.
5. The drying system of claim 4, wherein: the cold storage water tank is characterized in that a submersible pump is arranged in the water storage tank, a first water inlet of the cold storage water tank is communicated with the submersible pump through a pipeline, and a second circulating pump is arranged on a pipeline through which the sprayer is communicated with a first water outlet of the cold storage water tank.
6. The drying system of claim 1, wherein: the drying device further comprises a vacuum assembly, the vacuum assembly comprises a vacuum box and a vacuum pump, the drying assembly and the steam collecting assembly are located in the vacuum box, the vacuum pump is communicated with the vacuum box, and the communicated position corresponds to the position of the steam collecting assembly.
7. The drying system of claim 6, wherein: and the vacuum box is also provided with a vent valve.
8. Drying system according to any one of claims 1 to 7, characterized in that: the heat pump unit comprises an evaporator and a condenser which are mutually communicated to form a circulation loop, the evaporator is communicated with the cold storage water tank, and the condenser is communicated with the heat storage water tank.
9. The drying system of claim 8, wherein: the liquid outlet of the evaporator and the pipeline of the liquid inlet intercommunication of the condenser are provided with compressors, and the pipeline of the liquid inlet of the evaporator and the pipeline of the liquid outlet intercommunication of the condenser is provided with a throttle valve.
10. The drying system of claim 8, wherein: the pipeline of the evaporator communicated with the cold storage water tank is provided with a first water pump, and the pipeline of the condenser communicated with the heat storage water tank is provided with a second water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302001.7A CN113532042A (en) | 2020-04-16 | 2020-04-16 | Drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302001.7A CN113532042A (en) | 2020-04-16 | 2020-04-16 | Drying system |
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| Publication Number | Publication Date |
|---|---|
| CN113532042A true CN113532042A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010302001.7A Pending CN113532042A (en) | 2020-04-16 | 2020-04-16 | Drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540578A (en) * | 2022-10-31 | 2022-12-30 | 苏伊士水务工程有限责任公司 | Heat pump type indirect drying device |
-
2020
- 2020-04-16 CN CN202010302001.7A patent/CN113532042A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540578A (en) * | 2022-10-31 | 2022-12-30 | 苏伊士水务工程有限责任公司 | Heat pump type indirect drying device |
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