CN112167487A - Heat pump concentration technology for molecular distillation of sugarcane juice - Google Patents
Heat pump concentration technology for molecular distillation of sugarcane juice Download PDFInfo
- Publication number
- CN112167487A CN112167487A CN201910596938.7A CN201910596938A CN112167487A CN 112167487 A CN112167487 A CN 112167487A CN 201910596938 A CN201910596938 A CN 201910596938A CN 112167487 A CN112167487 A CN 112167487A
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- Prior art keywords
- heat pump
- heat
- evaporator
- evaporation
- pump concentration
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- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000000199 molecular distillation Methods 0.000 title claims abstract description 6
- 240000000111 Saccharum officinarum Species 0.000 title abstract description 5
- 235000007201 Saccharum officinarum Nutrition 0.000 title abstract description 5
- 235000011389 fruit/vegetable juice Nutrition 0.000 title abstract description 5
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000008020 evaporation Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007791 dehumidification Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 235000015203 fruit juice Nutrition 0.000 claims description 3
- 230000003075 superhydrophobic effect Effects 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000011550 stock solution Substances 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 208000008589 Obesity Diseases 0.000 description 1
- 206010057040 Temperature intolerance Diseases 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004153 glucose metabolism Effects 0.000 description 1
- 230000008543 heat sensitivity Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002113 nanodiamond Substances 0.000 description 1
- 235000020824 obesity Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011032 tourmaline Substances 0.000 description 1
- 229940070527 tourmaline Drugs 0.000 description 1
- 229910052613 tourmaline Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
- A23L2/08—Concentrating or drying of juices
- A23L2/10—Concentrating or drying of juices by heating or contact with dry gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0029—Use of radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a heat pump concentration technology for molecular distillation of sugarcane juice, which is a molecular distillation concentration technology combining an ultrasonic cavitation heat transfer by utilizing a heat pump triple co-generation technology. The device comprises a plate-shell type evaporator, a condensation dehumidifier, a heat pump unit, an ultrasonic cavitation feeding pump, a concentration detector, a temperature and humidity sensor, the condensation dehumidifier and the like. Is specially designed for low-temperature oxygen-free high-efficiency concentration of sugarcane juice. The air source heat pump heats the evaporator and the stock solution water evaporation, the water vapor is vacuumized to the cavity of the condensation dehumidifier for circulation, condensation dehumidification and total heat recovery are carried out, the supply evaporator is heated, the coaxial sleeve type heat exchanger discharges materials, cools down and heats the materials for feeding, thereby realizing total heat recovery, realizing cold-heat balance, enabling the energy efficiency ratio (COP) to reach more than 6.5, realizing single-machine circulation, reducing energy consumption and hardware input. Compared with the traditional multiple-effect evaporation and MVR evaporation concentration, the method has the advantages of small occupied area (about 30 percent), low investment (about 75 percent), high efficiency, no pollution and the like.
Description
Technical Field
The invention relates to separation, distillation, extraction and concentration technologies, in particular to the technical field of molecular distillation and heat pump vacuum low-temperature concentration.
Background
The fruit juice and the medical biological products have heat sensitivity, high-temperature denaturation, oxidation rancidity, active substance inactivation and the like, the sugarcane juice generates hydrolysis reaction at high temperature, the glucose metabolism rate is accelerated, and the three-high obesity and diabetes mellitus are caused. The traditional multiple-effect evaporation concentration and MVR evaporation concentration equipment has complex process, huge equipment, large heat exchange area and low evaporation efficiency, and cannot meet the production requirements of modern multiple varieties, small batch, less investment and small occupied area.
The invention utilizes the heat pump triple co-generation technology to integrate the ultrasonic cavitation effect, realizes low-temperature concentration, repeatedly uses heat transportation, does not use electric heat energy or other energy sources, and realizes the technical requirements of low energy consumption and zero emission.
Disclosure of Invention
Ultrasonic coupling pulse self-vibration cavitation jet flow is adopted to strengthen evaporation.
The cavitation mixed fluid generates cavitation cavity effect, and impacts on the surface of the evaporator to generate microcosmic violent boiling to accelerate evaporation.
The slit-shaped jet nozzle impacts the surface of the evaporator, and the heat convection coefficient of the short boundary layer of the process is improved by 27 percent.
The ultrasonic amplitude transformer cavitation coupling pulse self-excited cavitation jet flow breaks molecular hydrogen bonds to release combined water, and the evaporation rate is accelerated.
The infrared band of the infrared emission coating on the surface of the evaporator is matched with the infrared band of the fruit juice, so that three heating modes of convection, radiation and conduction are synchronously carried out.
The super-hydrophobic coating is distributed on the surface of the evaporator, so that drop-shaped condensation is realized, and the heat exchange coefficient is improved by 3-5 times.
28-60HKz ultrasonic wave reduces water molecule diffusion resistance and indirectly increases water evaporation area.
Labyrinth type condensation dehumidification, total heat recovery and return supply to the evaporator.
The coaxial double-pipe heat exchanger is charged and discharged, the discharged material is cooled, and the fed material is heated.
And (3) feeding back by a concentration detector, forcibly circulating, and concentrating by a single machine in one step.
The feeding pipe uses Venturi tube effect to naturally suck, heat nitrogen and accelerate circulation.
N2Boiling is accelerated in a vacuum environment.
N2After being extracted, the waste water is dehumidified, separated and recycled.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. the concentration detector 2, the array spherical heat exchange plate 3, the jet excitation water distributor 4, the two-stage water ring vacuum pump 5, the heating circulating water 6, the concentrated solution 7 and the coaxial double-pipe heat exchanger.
Detailed Description
The cylindrical evaporator is internally provided with a hot runner type salient point heat exchange plate, the two sides are divided by taking the circle center as an axis point, and the distance between the two sides and the outer wall is kept between 5cm and 10cm by gradual contraction.
The interval between the convex point heat exchange plates (array balls) is 7-15cm, the interval between the upper ends is 10-15cm, and the interval between the lower ends is 10-15 cm.
The evaporator is a conical bottom and is forcibly circulated by the material and the stock solution.
The cone bottom is provided with a concentration or sugar degree detector.
The double-stage water ring vacuum pump and the rotary vane vacuum pump reach negative pressure, and the ultimate vacuum is 10-100 Pa.
And (3) labyrinth condensation dehumidification, wherein more than 90% of condensation heat of the refrigerant is taken away by the condenser.
The atmosphere bypass heat exchanger adopts a Laval nozzle.
The ultrasonic amplitude transformer is coupled with pulse self-excitation cavitation.
Curtain type jet water distributor, cavitation micro jet water distributor and high-frequency hydraulic vibration.
A feed tee.
Intermittent super-hydrophobic treatment forms drop-shaped condensation, and the heat exchange efficiency is improved by 200%.
The nano zinc oxide, the nano diamond, the 200mm binchotan and the tourmaline powder coat form infrared radiation heating, and break water molecules to make water more prone to separate out.
The method comprises the following steps: condensing, dehumidifying, releasing heat, evaporating and heating; atmospheric bypass heat exchange is supplemented at any time; a feeding and discharging liquid coaxial double-pipe heat exchanger; introduction of N2Accelerated boiling, single machine circulation; the occupied area is 1/3-1/6 of MVR evaporation or multi-effect evaporation; the material used by the equipment is 20-25% of multi-effect evaporation or MVR; the energy consumption is only 70-75% of MVR; single machine circulation, one step in place; antibacterial and bacteriostatic, and infrared radiation heating.
Claims (10)
1. A heat pump concentration technology based on molecular distillation is characterized in that condensation, dehumidification and total heat recovery are carried out for evaporation and heating.
2. The heat pump concentration technique according to claim 1, wherein the atmospheric bypass heat exchange is supplemented at any time.
3. The heat pump concentration technique of claim 1, wherein the feed-liquid coaxial double-pipe heat exchanger is used.
4. The heat pump concentration technology according to claim 1, wherein ultrasonic coupled pulse self-oscillating cavitation jet flow enhances evaporation; the cavitation mixed fluid generates cavitation cavity effect, and impacts on the surface of the evaporator to generate microcosmic violent boiling accelerated evaporation; the slit-shaped jet nozzle impacts the surface of the evaporator, and the convective heat transfer coefficient of the short boundary layer of the process is improved.
5. The heat pump concentration technology according to claim 1, wherein ultrasonic horn cavitation is coupled with pulsed self-excited cavitation jet to break molecular hydrogen bonds to release bound water and accelerate evaporation rate; the infrared band of the infrared emission coating on the surface of the evaporator is matched with the infrared band of the fruit juice, so that three heating modes of convection, radiation and conduction are synchronously carried out.
6. The heat pump concentration technology according to claim 1, wherein a super-hydrophobic coating is distributed on the surface of the evaporator to realize dropwise condensation, and the heat exchange coefficient is improved by 3-5 times; 28-60HKz ultrasonic wave reduces water molecule diffusion resistance and indirectly increases water evaporation area.
7. The heat pump concentration technique of claim 1, wherein the labyrinth type condensation dehumidifies and the total heat is recovered and supplied to the evaporator.
8. The heat pump concentration technique of claim 1, wherein the coaxial double pipe heat exchanger is fed to the discharge, the discharge is cooled, and the feed is heated.
9. The heat pump concentration technique according to claim 1, wherein the concentration detector feeds back, forces the circulation, and concentrates in a single step.
10. The heat pump concentration technique of claim 1, wherein the feed tube uses a venturi effect to naturally draw in, heat nitrogen, accelerate circulation; n is a radical of2Accelerated boiling in a vacuum environment; n is a radical of2After being extracted, the waste water is dehumidified, separated and recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596938.7A CN112167487A (en) | 2019-07-03 | 2019-07-03 | Heat pump concentration technology for molecular distillation of sugarcane juice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596938.7A CN112167487A (en) | 2019-07-03 | 2019-07-03 | Heat pump concentration technology for molecular distillation of sugarcane juice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112167487A true CN112167487A (en) | 2021-01-05 |
Family
ID=73914488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910596938.7A Pending CN112167487A (en) | 2019-07-03 | 2019-07-03 | Heat pump concentration technology for molecular distillation of sugarcane juice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112167487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849257A (en) * | 2022-04-14 | 2022-08-05 | 广东碧乡科技发展有限公司 | Concentrated thick liquid production of shaddock is with shaddock juice concentrator |
-
2019
- 2019-07-03 CN CN201910596938.7A patent/CN112167487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849257A (en) * | 2022-04-14 | 2022-08-05 | 广东碧乡科技发展有限公司 | Concentrated thick liquid production of shaddock is with shaddock juice concentrator |
| CN114849257B (en) * | 2022-04-14 | 2024-02-06 | 广东碧乡科技发展有限公司 | Shaddock juice concentrator is used in production of shaddock thick paste |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Deen Document name: Notice on Completing and Correcting Procedures for Right Restoration |
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