CN110425827B - Freeze-drying system based on heat recovery and photo-thermal technology - Google Patents
Freeze-drying system based on heat recovery and photo-thermal technology Download PDFInfo
- Publication number
- CN110425827B CN110425827B CN201910804152.XA CN201910804152A CN110425827B CN 110425827 B CN110425827 B CN 110425827B CN 201910804152 A CN201910804152 A CN 201910804152A CN 110425827 B CN110425827 B CN 110425827B
- Authority
- CN
- China
- Prior art keywords
- component
- water
- heat
- valve
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004108 freeze drying Methods 0.000 title claims abstract description 47
- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 251
- 238000005338 heat storage Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 239000003507 refrigerant Substances 0.000 claims description 70
- 239000000463 material Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 15
- 230000008569 process Effects 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000007791 dehumidification Methods 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000000859 sublimation Methods 0.000 description 3
- 230000008022 sublimation Effects 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009777 vacuum freeze-drying Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a freeze drying system based on heat recovery and photo-thermal technology, comprising: a freeze drying chamber part 17, a heating system 9, a refrigeration system 11 and a heat storage recovery system; the freeze drying chamber part 17 is connected to a heating system 9; the freeze drying chamber part 17 is connected with the refrigerating system 11; the heat storage recovery system is connected with the heating system 9; the heat storage recovery system includes: the device comprises a water tank 1, a light energy heat collector component 2, a heat exchanger component 3, a water inlet of a heat storage recovery system and a water valve component; the water valve member includes: a first water valve member 7, a second water valve member 8, a third water valve member 6, a fourth water valve member 4, a fifth water valve member 5; the invention can effectively reduce the initial installation power of the equipment, thereby reducing the operation cost of the system; the invention can store the heat generated by the system and the heat generated by the sun.
Description
Technical Field
The invention relates to the field of freeze drying systems, in particular to a freeze drying system based on heat recovery and photo-thermal technology.
Background
A freeze-drying system refers to a process that removes moisture or other solvents from frozen biological products by sublimation. Traditional drying can cause the material to shrink, destroying the cells. The structure of the sample is not destroyed during the freeze-drying process because the solid components are supported by the solid ice in its place. As the ice sublimates, it leaves pores in the dry remainder. This preserves the integrity of the biological and chemical structure of the product and its activity. The freeze drying system is widely applied to the fields of laboratories, chemical analysis, fruit and vegetable fresh-keeping and the like. The freeze vacuum drying system is a complex refrigerating system which combines a refrigerating system, a vacuum system, a heating system and a dehumidifying system into a whole. In the freeze drying process, low-temperature refrigeration is needed to keep the shape and dehumidify the material, heating is needed to change the sublimation point and defrost of the material, and a vacuum system is needed to keep the vacuum degree of the material bin. And in the same subsystem, the energy consumption of the refrigerating system and the heating system accounts for more than 80% of the energy consumption of the whole drying system. At present, most of freeze drying systems in the market adopt a semi-closed piston machine for refrigeration and electric heating for defrosting. This configuration, while low in initial installation cost, has significant overall power. Therefore, the system operation cost is high, and huge resource waste exists.
Patent document CN109764641a discloses a freeze-drying system provided by the invention, which realizes ultralow temperature quick freezing of materials through a mechanical mixed working medium low-temperature refrigerating unit (RC), and vacuum freeze-drying of the materials through a vacuum freeze-drying unit (S), and can accelerate the quick freezing process under the actions of the mechanical mixed working medium low-temperature refrigerating unit (RC) and the vacuum freeze-drying unit (S), improve the quality of quick frozen materials, reduce the freeze-drying process period and reduce the refrigerating energy consumption. The patent has high power. The system operation cost is high, and huge resource waste exists.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present invention is to provide a freeze-drying system based on heat recovery and photo-thermal technology.
According to the invention, a freeze drying system based on heat recovery and photo-thermal technology comprises: a freeze drying chamber part 17, a heating system 9, a refrigeration system 11 and a heat storage recovery system; the freeze drying chamber part 17 is connected to a heating system 9; the freeze drying chamber part 17 is connected with the refrigerating system 11; the heat storage recovery system is connected with the heating system 9; the heat storage recovery system includes: the device comprises a water tank 1, a light energy heat collector component 2, a heat exchanger component 3, a water inlet of a heat storage recovery system and a water valve component; the water valve member includes: a first water valve member 7, a second water valve member 8, a third water valve member 6, a fourth water valve member 4, a fifth water valve member 5; the heat storage recovery system water inlet is connected with one end of a first water valve component 7, one end of a water tank 1, one end of a second water valve component 8 and one end of a third water valve component 6 are connected with the other end of the first water valve component 7, the other end of the second water valve component 8 is connected with one end of a light energy heat collector component 2, the other end of the third water valve component 6 is connected with one end of a heat exchanger component 3, the other end of the heat exchanger component 3 is connected with one end of a fourth water valve component 4, the other end of the light energy heat collector component 2 is connected with one end of a fifth water valve component 5, and the other end of the fourth water valve component 4 and the other end of the fifth water valve component 5 are connected with the water tank 1.
Preferably, the water tank 1 comprises: the water tank comprises a water tank liner, a heat preservation shell, a water tank water inlet, a first water tank water outlet and a second water tank water outlet; the heat-insulating shell covers the water tank liner completely or partially; the water inlet of the water tank is connected with the water inlet of the heat storage recovery system; the water outlet of the first water tank is connected with a heating system 9; the second water tank water outlet is connected with a fourth water valve component 4.
Preferably, the heat exchanger member 3 comprises: a first heat exchanger member 3; the first heat exchanger member 3 comprises: the first water outlet port component, the first water inlet port component, the first refrigerant outlet port component, the first refrigerant inlet port component, the first water channel component and the first refrigerant channel component; the first water channel component is respectively connected with the first water outlet interface component and the first water inlet interface component; the first refrigerant channel member is respectively connected with the first refrigerant outlet member and the first refrigerant inlet member; the first water passage member is capable of exchanging heat with the first refrigerant passage member.
Preferably, the heat exchanger member 3 further comprises: second heat exchanger element 3: the second heat exchanger member 3 comprises: the second water outlet interface component, the second water inlet interface component, the second refrigerant outlet component, the second refrigerant inlet component and the second refrigerant channel component; the second water channel component is respectively connected with the second water outlet interface component and the second water inlet interface component; the second refrigerant channel member is respectively connected with the second refrigerant outlet member and the second refrigerant inlet member; the second water channel component and the second refrigerant channel component can exchange heat; the water valve member further includes: a sixth water valve member 19; one end of the sixth water valve component 19 is connected with a water inlet of the heat storage recovery system; the other end of the sixth water valve component 19 is connected with a second water inlet interface component; the second water outlet interface member is connected to the drainage system 18; the first refrigerant outlet member is connected with the second refrigerant inlet member.
Preferably, the optical energy collector member 2; the light energy collector component 2 is a solar heat collection array device; the solar heat collection array device is a device capable of converting solar energy into thermal energy.
Preferably, the refrigeration system 11 comprises: a parallel variable frequency compressor member 14, an evaporator member 15, and a throttle device 16; the parallel variable frequency compressor component 14 is respectively connected with the first refrigerant inlet component and the evaporator component 15; the evaporator member 15 is connected to a throttle device 16, and the throttle device 16 is connected to a second refrigerant outlet member.
Preferably, the parallel inverter compressor member 14; the parallel inverter compressor member 14 includes: one or more dc variable frequency compressor components; the direct current variable frequency compression mechanism part comprises: a compressor component, a gas-liquid separator component, an oil-gas separator component, an exhaust pipeline component, an air suction pipeline component and a one-way stop valve component; the number of the one-way stop valve members is one or more, and the one-way stop valve members include: a first one-way shut-off valve member, a second one-way shut-off valve member; the first one-way shut-off valve member includes: the device comprises a first one-way stop valve body, a first one-way stop valve inlet and a first one-way stop valve outlet; the second one-way shut-off valve member includes: the second one-way stop valve body, the second one-way stop valve inlet and the second one-way stop valve outlet; the compression mechanism part is respectively connected with one end of the gas-liquid separator component and one end of the oil-gas separator component; the other end of the gas-liquid separator component is connected with the inlet of the first one-way stop valve, and the other end of the oil-gas separator component is connected with the outlet of the second one-way stop valve; the outlet of the first one-way stop valve is connected with the exhaust pipeline component; the inlet of the second one-way stop valve is connected with the suction pipeline component.
Preferably, the evaporator member 15 is a device capable of cooling down or a device capable of dehumidifying; the throttle device 16 is a thermostatic expansion valve.
Preferably, an evacuation system 10 is also included; the freeze drying cavity part 17 is connected with the vacuumizing system 10, and the freeze drying cavity part 17 adopts an arc-shaped structure; the freeze drying chamber section 17 includes: a material rack 12 and a water catcher 13; the material rack 12 is connected with the heating system 9; the water trap 13 is connected to the refrigeration system 11.
Preferably, the parallel inverter compressor member 14 comprises: a plurality of dc variable frequency compressor components; the exhaust pipeline components of the direct current variable frequency compressor components are communicated; the suction line members of the plurality of DC variable frequency compressor members are in communication.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention adopts a plurality of variable frequency refrigerating units connected in parallel, the system can automatically load and unload the number of variable frequency units according to the process requirement, and simultaneously can carry out frequency adjustment on a single variable frequency unit, thereby realizing the effect of how much to provide, and effectively reducing the initial installation power of equipment, thereby reducing the operation cost of the system;
2. the invention uses heat recovery technology and photo-thermal effect, which can store the heat generated by the system and the heat generated by the sun, and can be reused when heating is needed;
3. the invention has reasonable structure, effectively saves resources and reduces emission.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
Fig. 1 is a schematic diagram of a heat storage recovery system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a refrigeration system according to an embodiment of the present invention.
FIG. 3 is a schematic view of the structure of a freeze drying chamber component in an embodiment of the invention.
Fig. 4 is a schematic diagram of a system structure according to an embodiment of the invention.
In the figure:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
As shown in fig. 1, 2, 3 and 4, the freeze drying system based on heat recovery and photo-thermal technology according to the present invention includes: a freeze drying chamber part 17, a heating system 9, a refrigeration system 11 and a heat storage recovery system; the freeze drying chamber part 17 is connected to a heating system 9; the freeze drying chamber part 17 is connected with the refrigerating system 11; the heat storage recovery system is connected with the heating system 9; the heat storage recovery system includes: the device comprises a water tank 1, a light energy heat collector component 2, a heat exchanger component 3, a water inlet of a heat storage recovery system and a water valve component; the water valve member includes: a first water valve member 7, a second water valve member 8, a third water valve member 6, a fourth water valve member 4, a fifth water valve member 5; the heat storage recovery system water inlet is connected with one end of a first water valve component 7, one end of a water tank 1, one end of a second water valve component 8 and one end of a third water valve component 6 are connected with the other end of the first water valve component 7, the other end of the second water valve component 8 is connected with one end of a light energy heat collector component 2, the other end of the third water valve component 6 is connected with one end of a heat exchanger component 3, the other end of the heat exchanger component 3 is connected with one end of a fourth water valve component 4, the other end of the light energy heat collector component 2 is connected with one end of a fifth water valve component 5, and the other end of the fourth water valve component 4 and the other end of the fifth water valve component 5 are connected with the water tank 1.
In the invention, the heat dissipation part of the refrigeration system 11 is cooled by adopting an aqueous medium, and a traditional wind system heat dissipation mode is abandoned. The water system heat dissipation part adopts a two-stage radiator, the first stage performs pre-heat dissipation, the temperature of the water after heat dissipation reaches the highest, and the water is stored in the heat preservation water tank 1, and meanwhile, in order to ensure the effect of the medium radiator of the refrigeration system 11, the medium of the refrigeration system 11 is required to be dissipated by the two-stage heat exchanger, so that the refrigeration system 11 is effectively dissipated, and the refrigeration effect is ensured. This part of the water does not need to enter the water tank 1 for storage. Meanwhile, the heat preservation water tank 1 is connected with the solar heat collection plate array, when the water temperature of the water tank 1 is insufficient due to the fact that the solar heat collection plate array heats water in the water tank 1 by utilizing the photo-thermal effect, and therefore the water temperature in the water tank 1 is guaranteed.
The basic procedure of freeze drying is: firstly, cooling and shaping the material, after the process is finished, sending the material into a drying cabin body, vacuumizing and dehumidifying simultaneously, and after the vacuum degree reaches a certain requirement, gradually increasing the temperature of the material, thereby changing the sublimation point of the material to achieve the dehumidification effect. When the water replenishing device of the dehumidification system frosts to a certain degree, the defrosting is started by hot water. The dehumidification system also achieves humidity by refrigeration. Therefore, the heat of the new system in the material shaping stage and the dehumidifying stage is stored in the heat-preserving water tank 1, and when the material is required to be warmed and defrosted, the water tank 1 is reused for warming and defrosting.
Preferably, the water tank 1 comprises: the water tank comprises a water tank liner, a heat preservation shell, a water tank water inlet, a first water tank water outlet and a second water tank water outlet; the heat-insulating shell covers the water tank liner completely or partially; the water inlet of the water tank is connected with the water inlet of the heat storage recovery system; the water outlet of the first water tank is connected with a heating system 9; the second water tank water outlet is connected with a fourth water valve component 4.
Preferably, the heat exchanger member 3 comprises: a first heat exchanger member 3; the first heat exchanger member 3 comprises: the first water outlet port component, the first water inlet port component, the first refrigerant outlet port component, the first refrigerant inlet port component, the first water channel component and the first refrigerant channel component; the first water channel component is respectively connected with the first water outlet interface component and the first water inlet interface component; the first refrigerant channel member is respectively connected with the first refrigerant outlet member and the first refrigerant inlet member; the first water passage member is capable of exchanging heat with the first refrigerant passage member.
Specifically, in one embodiment, the heat exchanger is a plate heat exchanger, the plate heat exchanger is a novel efficient heat exchanger which is formed by containing metal plates with certain corrugated shapes, the structure of the plate heat exchanger comprises gaskets, compression plates (movable end plates, fixed end plates) and frames (upper guide rods, lower guide rods and front struts), the plates are sealed and guided by sealing gaskets, cold/hot fluid channels are separated, cold/hot heat exchange media respectively flow through the channels and exchange heat with the separated plates, so that the temperature required by a user is reached. Each plate has openings at four corners, which are assembled into bundles to form distribution pipes and headers for fluid, and the cold/hot medium is circulated after heat exchange and return from the respective headers. The heat exchange principle is dividing wall type heat transfer. The single-flow structure is that only 2 plates do not transfer heat to a head tail plate; the double flow structure has 3 plates for each flow without heat transfer. The primary heat exchanger and the secondary heat exchanger are both plate heat exchangers, each plate heat exchanger is provided with four interfaces, and each plate heat exchanger comprises a water inlet, a water outlet, a refrigerant inlet and a refrigerant outlet.
As shown in fig. 1, when the water in the water tank 1 is insufficient, the water valve 7 is opened, the water valves 4,5,6 and 8 are closed, and the water enters the heat preservation water tank 1 through the water valve 7 for water supplementing. After a sufficient quantity of water has been supplied to the tank 1, the water valve 7 is closed.
When the sun exists, the refrigerating system 11 does not operate in real time, namely, the primary heat exchanger does not need heat exchange, the water valves 4,6 and 7 are closed, the water valves 5 and 8 are opened, water in the water tank 1 flows out through the water outlet 2 and flows into the solar heat collector to be heated, and the heated water flows back to the water tank 1 through the water valve 8. The effect of improving the water temperature is achieved by circulation.
When no sun exists and the refrigerating system 11 runs in real time, namely the primary heat exchanger needs to exchange heat, the water valves 5,7 and 8 are closed, the water valves 4 and 6 are opened, water in the water tank 1 flows out through the water outlet 2, flows into the primary heat exchanger and the refrigerant to exchange heat, and heated water flows back to the water tank 1 through the water valve 6. The effect of improving the water temperature is achieved by circulation.
When the sun exists, the refrigerating system 11 runs in real time, namely the primary heat exchanger needs to exchange heat, the water valve 7 is closed, the water valves 4,5,6 and 8 are opened, water in the water tank 1 flows out through the water outlet 2, one part flows into the solar heat collector to be heated, the other part flows into the primary heat exchanger and the refrigerant to exchange heat, and the heated water flows back to the water tank 1 through the water valves 6 and 8. The effect of improving the water temperature is achieved by circulation.
When the heating system 9 needs to consume hot water, the hot water enters the heating system 9 through the water outlet 1, and when the water quantity of the water tank 1 is insufficient, the water valve 7 is opened again to supplement water.
Preferably, the heat exchanger member 3 further comprises: second heat exchanger element 3: the second heat exchanger member 3 comprises: the second water outlet interface component, the second water inlet interface component, the second refrigerant outlet component, the second refrigerant inlet component and the second refrigerant channel component; the second water channel component is respectively connected with the second water outlet interface component and the second water inlet interface component; the second refrigerant channel member is respectively connected with the second refrigerant outlet member and the second refrigerant inlet member; the second water channel component and the second refrigerant channel component can exchange heat; the water valve member further includes: a sixth water valve member 19; one end of the sixth water valve component 19 is connected with a water inlet of the heat storage recovery system; the other end of the sixth water valve component 19 is connected with a second water inlet interface component; the second water outlet interface member is connected to the drainage system 18; the first refrigerant outlet member is connected with the second refrigerant inlet member. The first refrigerant outlet member is connected with the second refrigerant inlet member.
After the water temperature in the water tank 1 is heated to a certain temperature, the water in the primary heat exchanger cannot recover the heat of the refrigerating system 11, and if the refrigerating system 11 is still working at this time, the heat dissipation function of the refrigerating system 11 is performed by the secondary heat exchanger. The hot water after heat exchange directly enters a drainage system. Meanwhile, when the heat generated by the system in the running process is too large, the primary heat exchanger is insufficient to take away enough heat, and the secondary heat exchanger has the effect of exchanging heat again.
For a refrigerant system loop, a refrigerant inlet of the primary heat exchanger is connected to an exhaust port main pipe of the parallel compressor unit, a refrigerant outlet of the primary heat exchanger is connected to a refrigerant inlet of the secondary heat exchanger, a refrigerant outlet of the secondary heat exchanger is connected to a throttling device 16, and the refrigerant enters an evaporator for heat exchange after being throttled and then returns to the compressor unit. And so on.
Preferably, the optical energy collector member 2; the light energy collector component 2 is a solar heat collection array device; the solar heat collection array device is a device capable of converting solar energy into thermal energy.
Preferably, the refrigeration system 11 comprises: a parallel variable frequency compressor member 14, an evaporator member 15, and a throttle device 16; the parallel variable frequency compressor component 14 is respectively connected with the first refrigerant inlet component and the evaporator component 15; the evaporator member 15 is connected to a throttle device 16, and the throttle device 16 is connected to a second refrigerant outlet member.
Preferably, the parallel inverter compressor member 14; the parallel inverter compressor member 14 includes: one or more dc variable frequency compressor components; the direct current variable frequency compression mechanism part comprises: a compressor component, a gas-liquid separator component, an oil-gas separator component, an exhaust pipeline component, an air suction pipeline component and a one-way stop valve component; the number of the one-way stop valve members is one or more, and the one-way stop valve members include: a first one-way shut-off valve member, a second one-way shut-off valve member; the first one-way shut-off valve member includes: the device comprises a first one-way stop valve body, a first one-way stop valve inlet and a first one-way stop valve outlet; the second one-way shut-off valve member includes: the second one-way stop valve body, the second one-way stop valve inlet and the second one-way stop valve outlet; the compression mechanism part is respectively connected with one end of the gas-liquid separator component and one end of the oil-gas separator component; the other end of the gas-liquid separator component is connected with the inlet of the first one-way stop valve, and the other end of the oil-gas separator component is connected with the outlet of the second one-way stop valve; the outlet of the first one-way stop valve is connected with the exhaust pipeline component; the inlet of the second one-way stop valve is connected with the suction pipeline component.
Preferably, the evaporator member 15 is a device capable of cooling down or a device capable of dehumidifying.
In the material freezing and shaping system, an evaporator mainly comprises a fan, copper pipes and fins. When the throttled low-temperature refrigerant flows through the copper pipe, cold energy is transferred to the fins connected with the copper pipe through heat conduction. When wind flows between the two fins, the fins and air in the wind exchange heat, so that the effect of reducing the temperature is achieved. In the refrigeration and dehumidification system, the evaporator is a water supplementing device which is formed by a U-shaped or round stainless steel tube. When the throttled low-temperature refrigerant flows through the stainless steel pipe, the outside of the stainless steel pipe is high-humidity and high-temperature air, so that the outside of the stainless steel pipe can be frozen, and the dehumidification effect is achieved.
Preferably, the restriction 16 is a thermal expansion valve.
Preferably, an evacuation system 10 is also included; the freeze drying cavity part 17 is connected with the vacuumizing system 10, and the freeze drying cavity part 17 adopts an arc-shaped structure; the freeze drying chamber section 17 includes: a material rack 12 and a water catcher 13; the material rack 12 is connected with the heating system 9; the water trap 13 is connected to the refrigeration system 11.
As shown in FIG. 3, because the freeze-drying chamber is in a vacuum state, the whole chamber body needs to bear the pressure of 1 atmosphere, and therefore, the whole chamber body is generally in an arc-shaped structure, and is made of stainless steel and has a thickness of at least 10mm.
Preferably, the parallel inverter compressor member 14 comprises: a plurality of dc variable frequency compressor components; the exhaust pipeline components of the direct current variable frequency compressor components are communicated; the suction line members of the plurality of DC variable frequency compressor members are in communication.
The parallel compressor unit is formed by connecting a plurality of direct-current variable-frequency compressors in parallel, each compressor comprises a gas-liquid separator, an oil-gas separator and two one-way stop valves, the exhaust gas of all the compressors is converged into a main exhaust pipeline, and the air inlets of all the compressors are converged into a main air suction pipeline. The gas-liquid separator is used for separating gas and liquid and preventing the compressor from liquid impact; the oil-gas separator is used for separating refrigerant in a frozen oil and gas state and preventing the frozen oil from being lost into the refrigerating pipeline. The one-way stop valve is used for preventing the refrigerant from flowing back in the pipeline. The parallel compressor unit determines to start one or more compressors according to the system load requirement, and adjusts the frequency of a single compressor according to the system load requirement, so that the purposes of frequency conversion and energy saving are achieved.
The invention adopts a plurality of variable frequency refrigerating units connected in parallel, the system can automatically load and unload the number of variable frequency units according to the process requirement, and simultaneously can carry out frequency adjustment on a single variable frequency unit, thereby realizing the effect of how much to provide, and effectively reducing the initial installation power of equipment, thereby reducing the operation cost of the system; the invention uses heat recovery technology and photo-thermal effect, which can store the heat generated by the system and the heat generated by the sun, and can be reused when heating is needed; the invention has reasonable structure, effectively saves resources and reduces emission.
Those skilled in the art will appreciate that the invention provides a system and its individual devices, modules, units, etc. that can be implemented entirely by logic programming of method steps, in addition to being implemented as pure computer readable program code, in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units for realizing various functions included in the system can also be regarded as structures in the hardware component; means, modules, and units for implementing the various functions may also be considered as either software modules for implementing the methods or structures within hardware components.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (8)
1. A freeze-drying system based on heat recovery and photothermal techniques, comprising: a freeze drying chamber part (17), a heating system (9), a refrigerating system (11) and a heat storage recovery system;
the freeze drying chamber part (17) is connected with a heating system (9);
the freeze drying cavity part (17) is connected with a refrigerating system (11);
the heat storage recovery system is connected with the heating system (9);
the heat storage recovery system includes: the device comprises a water tank (1), a light energy heat collector component (2), a heat exchanger component (3), a heat storage recovery system water inlet and a water valve component;
the water tank (1) comprises: a water tank liner;
The heat exchanger member (3) comprises: a first heat exchanger member;
The first heat exchanger member includes: the first water outlet port component, the first water inlet port component, the first refrigerant outlet port component, the first refrigerant inlet port component, the first water channel component and the first refrigerant channel component;
the first water channel component is respectively connected with the first water outlet interface component and the first water inlet interface component;
the first refrigerant channel member is respectively connected with the first refrigerant outlet member and the first refrigerant inlet member;
the heat exchanger member (3) further comprises: a second heat exchanger component:
The second heat exchanger member includes: the second water outlet interface component, the second water inlet interface component, the second refrigerant outlet component, the second refrigerant inlet component, the second water channel component and the second refrigerant channel component;
the second water channel component is respectively connected with the second water outlet interface component and the second water inlet interface component;
The second refrigerant channel member is respectively connected with the second refrigerant outlet member and the second refrigerant inlet member;
the water valve member includes: a first water valve component (7), a second water valve component (8), a third water valve component (6), a fourth water valve component (4) and a fifth water valve component (5);
The water inlet of the heat storage recovery system is connected with one end of a first water valve component (7), one end of a water tank (1), one end of a second water valve component (8) and one end of a third water valve component (6) are connected with the other end of the first water valve component (7), the other end of the second water valve component (8) is connected with one end of a light energy heat collector component (2), the other end of the third water valve component (6) is connected with one end of a heat exchanger component (3), the other end of the heat exchanger component (3) is connected with one end of a fourth water valve component (4), the other end of the light energy heat collector component (2) is connected with one end of a fifth water valve component (5), and the other end of the fourth water valve component (4) and the other end of the fifth water valve component (5) are connected with the water tank (1);
the refrigeration system (11) comprises: a parallel variable frequency compressor component (14), an evaporator component (15) and a throttling device (16);
The parallel variable frequency compressor component (14) is respectively connected with the first refrigerant inlet component and the evaporator component (15);
The evaporator component (15) is connected with the throttling device (16), and the throttling device (16) is connected with the second refrigerant outlet component;
The second water outlet interface member is connected to a drainage system (18);
the first refrigerant outlet component is connected with the second refrigerant inlet component;
The parallel inverter compressor member (14) includes: one or more dc variable frequency compressor components;
the direct current variable frequency compression mechanism part comprises: a compressor component, a gas-liquid separator component, an oil-gas separator component, an exhaust pipeline component, an air suction pipeline component and a one-way stop valve component;
The number of the one-way stop valve members is one or more, and the one-way stop valve members include: a first one-way shut-off valve member, a second one-way shut-off valve member;
The first one-way shut-off valve member includes: the device comprises a first one-way stop valve body, a first one-way stop valve inlet and a first one-way stop valve outlet;
the second one-way shut-off valve member includes: the second one-way stop valve body, the second one-way stop valve inlet and the second one-way stop valve outlet;
The compression mechanism part is respectively connected with one end of the gas-liquid separator component and one end of the oil-gas separator component;
The other end of the gas-liquid separator component is connected with the inlet of the first one-way stop valve, and the other end of the oil-gas separator component is connected with the outlet of the second one-way stop valve;
the outlet of the first one-way stop valve is connected with the exhaust pipeline component;
the inlet of the second one-way stop valve is connected with the suction pipeline component.
2. The freeze-drying system based on heat recovery and photothermal technique according to claim 1, characterized in that said water tank (1) further comprises: the device comprises a heat preservation shell, a water tank water inlet, a first water tank water outlet and a second water tank water outlet;
The heat-insulating shell covers the water tank liner completely or partially;
The water inlet of the water tank is connected with the water inlet of the heat storage recovery system;
the water outlet of the first water tank is connected with a heating system (9);
the water outlet of the second water tank is connected with a fourth water valve component (4).
3. The freeze-drying system based on heat recovery and photothermal techniques according to claim 1, wherein,
The first water passage member is capable of exchanging heat with the first refrigerant passage member.
4. The freeze-drying system based on heat recovery and photothermal techniques according to claim 1, wherein,
The second water channel component and the second refrigerant channel component can exchange heat;
The water valve member further includes: a sixth water valve member (19);
one end of the sixth water valve component (19) is connected with a water inlet of the heat storage recovery system;
The other end of the sixth water valve component (19) is connected with the second water inlet interface component.
5. The freeze-drying system based on heat recovery and photothermal techniques according to claim 1, wherein,
The light energy collector component (2) is a solar heat collection array device;
the solar heat collection array device is a device capable of converting solar energy into thermal energy.
6. The freeze-drying system based on heat recovery and photothermal techniques according to claim 1, characterized in that the evaporator means (15) are either a device capable of cooling down or a device capable of dehumidifying;
The throttling device (16) is a thermal expansion valve.
7. The freeze-drying system based on heat recovery and photothermal techniques according to claim 1, further comprising a vacuum pumping system (10);
The freeze drying cavity component (17) is connected with the vacuumizing system (10), and the freeze drying cavity component (17) adopts an arc-shaped structure;
The freeze drying chamber part (17) comprises: a material rack (12) and a water catcher (13);
The material rack (12) is connected with the heating system (9);
the water catcher (13) is connected with the refrigerating system (11).
8. The freeze drying system based on heat recovery and photothermal technology according to claim 1, wherein the parallel inverter compressor member (14) comprises: a plurality of dc variable frequency compressor components;
the exhaust pipeline components of the direct current variable frequency compressor components are communicated;
the suction line members of the plurality of DC variable frequency compressor members are in communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804152.XA CN110425827B (en) | 2019-08-28 | 2019-08-28 | Freeze-drying system based on heat recovery and photo-thermal technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804152.XA CN110425827B (en) | 2019-08-28 | 2019-08-28 | Freeze-drying system based on heat recovery and photo-thermal technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110425827A CN110425827A (en) | 2019-11-08 |
| CN110425827B true CN110425827B (en) | 2024-07-02 |
Family
ID=68416473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910804152.XA Active CN110425827B (en) | 2019-08-28 | 2019-08-28 | Freeze-drying system based on heat recovery and photo-thermal technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425827B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202734335U (en) * | 2012-04-27 | 2013-02-13 | 王海军 | Recovery and utilization system for waste heat of freeze dryer |
| CN208504872U (en) * | 2018-06-15 | 2019-02-15 | 上海工程技术大学 | Utilize the freeze dryer energy conserving system of solar energy absorption type refrigeration |
| CN109668381A (en) * | 2018-12-13 | 2019-04-23 | 中原工学院 | A kind of vacuum freezing drying device using mixed non-azeotropic refrigerant |
| CN210602486U (en) * | 2019-08-28 | 2020-05-22 | 上海盈达空调设备股份有限公司 | Freeze drying system based on heat recovery and photo-thermal technology |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803574U (en) * | 2010-09-21 | 2011-04-20 | 吴钢 | System for removing moisture in coal by flash evaporation method |
| CN109260913A (en) * | 2018-11-22 | 2019-01-25 | 杭州山立净化设备股份有限公司 | A kind of band recovery type heat freezing type drier |
| CN109405422A (en) * | 2018-11-30 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of vacuum environment heat pump drying system and its working method |
-
2019
- 2019-08-28 CN CN201910804152.XA patent/CN110425827B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202734335U (en) * | 2012-04-27 | 2013-02-13 | 王海军 | Recovery and utilization system for waste heat of freeze dryer |
| CN208504872U (en) * | 2018-06-15 | 2019-02-15 | 上海工程技术大学 | Utilize the freeze dryer energy conserving system of solar energy absorption type refrigeration |
| CN109668381A (en) * | 2018-12-13 | 2019-04-23 | 中原工学院 | A kind of vacuum freezing drying device using mixed non-azeotropic refrigerant |
| CN210602486U (en) * | 2019-08-28 | 2020-05-22 | 上海盈达空调设备股份有限公司 | Freeze drying system based on heat recovery and photo-thermal technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110425827A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103900184A (en) | Water cooling medium three-pipe refrigerating and heating air-conditioning system | |
| CN111023790A (en) | Chinese herbal medicine heat pump drying system with heat pipe heat regenerator | |
| CN112923616A (en) | Air source CO for preventing evaporator from frosting by using heat of heat regenerator2Heat pump system | |
| CN102759193A (en) | Air source heat pump system | |
| CN109618686B (en) | Solar heat pump solution dehumidifying, composite drying and low-temperature ventilation grain storage system | |
| CN210602486U (en) | Freeze drying system based on heat recovery and photo-thermal technology | |
| CN106123396A (en) | The heat pump that a kind of solar energy heating/vaporizer is combined with finned evaporator | |
| CN212253005U (en) | Anti-freezing type indirect evaporative cooling air conditioning unit | |
| EP3351863A1 (en) | System and method for reducing moisture in a refrigerated room | |
| US9476615B2 (en) | Autonomous induction heat exchange method using pressure difference and gas compressor and heat pump using the same | |
| CN113446764A (en) | Independent temperature and humidity control system for plant cabin in severe cold region | |
| CN105716324A (en) | Double-heat-source efficient air conditioner system based on compression-injection combination and application | |
| CN210892235U (en) | Natural cooling multi-connected refrigerating system with built-in gravity heat pipe | |
| CN110425827B (en) | Freeze-drying system based on heat recovery and photo-thermal technology | |
| CN209042832U (en) | A kind of air energy heat pump defrosting system using recuperation of heat | |
| CN102661660A (en) | Refrigerating system waste heat recovery and solar-assisted heating and drying device | |
| CN100489416C (en) | Central air conditioning system with two-pipe heat pump | |
| CN200996697Y (en) | Heat-storage air conditioner | |
| CN206637882U (en) | Switchable type double evaporators CO2 trans critical cycle refrigeration systems | |
| CN105318596A (en) | Separated heat pipe room-temperature magnetic refrigeration device | |
| CN206247561U (en) | Temperature control system | |
| CN205939816U (en) | Heat pump that solar energy collection evaporimeter and finned evaporator combine | |
| CN110455041A (en) | Freeze-drying method based on recuperation of heat and photothermal technique | |
| CN210638378U (en) | Double-circuit refrigerating device of overlapping partition plate freeze dryer | |
| CN211575823U (en) | Chinese herbal medicine heat pump drying system with heat pipe heat regenerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |