CN220801965U - Low-temperature vacuum evaporation drying system - Google Patents
Low-temperature vacuum evaporation drying system Download PDFInfo
- Publication number
- CN220801965U CN220801965U CN202322695761.0U CN202322695761U CN220801965U CN 220801965 U CN220801965 U CN 220801965U CN 202322695761 U CN202322695761 U CN 202322695761U CN 220801965 U CN220801965 U CN 220801965U
- Authority
- CN
- China
- Prior art keywords
- heat
- pipeline
- vacuum evaporation
- pump
- tank
- 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
- 238000007738 vacuum evaporation Methods 0.000 title claims abstract description 35
- 238000001035 drying Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001704 evaporation Methods 0.000 claims abstract description 34
- 230000008020 evaporation Effects 0.000 claims abstract description 33
- 239000012141 concentrate Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 22
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 239000011550 stock solution Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 22
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the technical field of environmental protection and energy conservation, and discloses a low-temperature vacuum evaporation drying system, wherein a concentration tank is arranged at one side of the bottom of a vacuum evaporation tank, the end A of the concentration tank is connected with a concentrate pump through a pipeline, one end of the concentrate pump is connected with the end D of a heat exchanger through a pipeline, and the end E of the heat exchanger is connected with a centrifuge through a pipeline; the utility model utilizes the characteristic that heat is released simultaneously when the heat pump unit is used for refrigerating, the condenser and the vacuum pump unit are matched, the heat discharged by the heat pump is utilized for heating the concentrated solution to be concentrated, meanwhile, cold water produced by the heat pump unit is used as cooling water for cooling and condensing the steam evaporated from the concentrated solution to form vacuum, a closed-loop low-temperature evaporation system is created, redundant heat or cold quantity in the system can be regulated and used or discharged according to actual conditions, and the evaporated condensed water is fully recycled while the liquid is concentrated.
Description
Technical Field
The utility model relates to the technical field of environmental protection and energy saving, in particular to a low-temperature vacuum evaporation drying system.
Background
At present, the existing domestic and foreign evaporation and drying processes basically adopt a heating evaporation or drying mode, high-temperature steam or other high-temperature fluid is firstly used for heating substances to be evaporated, the temperature of a heating medium discharged after evaporation and heating is generally above 150 ℃, even if an MVR technology is adopted, the temperature of the discharged heating medium is higher than 70 ℃, and the discharged heating medium cannot be recycled, so that the low-temperature vacuum evaporation and drying system is provided.
Disclosure of utility model
The utility model aims to provide a low-temperature vacuum evaporation drying system, which aims to solve the problems that the prior domestic and foreign evaporation drying process basically adopts a heating evaporation or drying mode, high-temperature steam or other high-temperature fluid is firstly used for heating substances needing to be evaporated, the temperature of a heating medium discharged after evaporation heating is generally above 150 ℃, even if the MVR technology is adopted, the temperature of the discharged heating medium is also above 70 ℃, and the discharged heating medium cannot be recycled.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low temperature vacuum evaporation drying system, includes the vacuum evaporation jar, bottom one side of vacuum evaporation jar is provided with concentrated pond, concentrated pond ' S A end has concentrated liquid pump through the pipe connection, concentrated liquid pump ' S one end has the D end of heat exchanger through the pipe connection, heat pump ' S E end has the centrifuge through the pipe connection, centrifuge ' S I end has the separation liquid case through the pipe connection, separation liquid case ' S one end has the separation liquid pump through the pipe connection, separation liquid pump ' S one end has connecting pipeline through the pipe connection, install the evaporation liquid circulating pump on the connecting pipeline, evaporation liquid circulating pump ' S one end has the K end of main heater through the pipe connection, main heater ' S L end has high temperature water pump through the pipe connection, heat pump unit ' S one end has the O end through the pipe connection of heat pump unit, heat pump unit ' S P end has the heat source water pump through the pipe connection, heat pump unit ' S one end has the T end of condenser through the pipe connection, the U end of condenser is through the pipe connection in heat pump unit ' S Q end, heat pump unit ' S S end is through the pipe connection in main heater ' S M end through the pipe connection in main heater ' S the vacuum heating tank.
Further preferred as the technical scheme is that: the F end of the heat exchanger is connected to the connecting pipeline through a pipeline, and the G end of the heat exchanger is connected with a stock solution pipeline.
Further preferred as the technical scheme is that: and the J end of the centrifugal machine is connected with a vacuum dryer through a pipeline.
Further preferred as the technical scheme is that: a first expansion water tank is arranged between the high-temperature water pump and the O end of the heat pump unit, and a second expansion water tank is arranged between the heat source water pump and the T end of the condenser.
Further preferred as the technical scheme is that: the end B of the vacuum evaporation tank is connected to one end of the condenser through a pipeline, and the other end of the condenser is connected with a vacuum unit through a pipeline.
Further preferred as the technical scheme is that: and a condensation water tank is arranged at one side of the condenser.
Compared with the prior art, the utility model has the beneficial effects that:
1. The utility model utilizes the characteristic that heat is released simultaneously when the heat pump unit refrigerates, the condenser and the vacuum pump unit are matched, the heat discharged by the heat pump is utilized to heat the concentrated solution to be concentrated, meanwhile, cold water produced by the heat pump unit is used as cooling water to cool and condense the steam evaporated by the concentrated solution to form vacuum, a closed-loop low-temperature evaporation system is created, redundant heat or cold in the system can be regulated and used or discharged according to actual conditions, the completed low-temperature energy is recycled, the evaporated condensate is recycled completely while the liquid is concentrated, the quality of the recycled evaporated condensate is high, the temperature is lower, and the evaporated condensate can be recycled completely.
2. Compared with all existing heating evaporation processes, the utility model has the advantages of low energy consumption, low energy consumption grade, low temperature of condensed water and convenient recycling and treatment.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system according to the present utility model.
Reference numerals illustrate: 1. a vacuum evaporation tank; 2. a concentration tank; 3. a concentrate pump; 4. a heat exchanger; 5. a centrifuge; 6. a separation liquid tank; 7. a vacuum dryer; 8. a separation liquid pump; 9. an evaporation liquid circulation pump; 10. a main heater; 11. a high temperature water pump; 12. a first expansion tank; 13. a heat pump unit; 14. a heat source water pump; 15. a condensation tank; 16. a condenser; 17. a vacuum unit; 18. a second expansion tank; 19. and connecting pipelines.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.
Examples
In the prior art, the existing domestic and foreign evaporation and drying processes basically adopt a heating evaporation or drying mode, high-temperature steam or other high-temperature fluid is firstly used for heating substances to be evaporated, the temperature of a heating medium discharged after evaporation and heating is generally above 150 ℃, even if an MVR technology is adopted, the temperature of the discharged heating medium is higher than 70 ℃, and the discharged heating medium cannot be recycled.
Referring to fig. 1, the present utility model provides a technical solution: the low-temperature vacuum evaporation drying system comprises a vacuum evaporation tank 1, wherein a concentration tank 2 is arranged at one side of the bottom of the vacuum evaporation tank 1, an A end of the concentration tank 2 is connected with a concentration liquid pump 3 through a pipeline, one end of the concentration liquid pump 3 is connected with a D end of a heat exchanger 4 through a pipeline, an E end of the heat exchanger 4 is connected with a centrifugal machine 5 through a pipeline, concentrated liquid at the bottom of the concentration tank 2 is sent into the heat exchanger 4 through the concentration liquid pump 3 to heat evaporation raw liquid, more crystals are generated after the concentrated liquid releases heat to cool the raw liquid, and the crystal liquid enters the centrifugal machine 5 for solid-liquid separation;
the I end of the centrifugal machine 5 is connected with a separation liquid box 6 through a pipeline, one end of the separation liquid box 6 is connected with a separation liquid pump 8 through a pipeline, solid matters subjected to solid-liquid separation enter a vacuum dryer 7, and the vacuum dryer 7 has low-temperature drying capacity; the separation liquid enters a separation liquid tank 6 and enters a system through a separation liquid pump 8 for circulating concentration;
one end of the separation liquid pump 8 is connected with a connecting pipeline 19 through a pipeline, an evaporation liquid circulating pump 9 is arranged on the connecting pipeline 19, and one end of the evaporation liquid circulating pump 9 is connected with the K end of the main heater 10 through a pipeline; the vacuum evaporation tank 1 and the concentration tank 2 are in sealing integration or sealing connection, the concentrated solution from the main heater 10 enters the concentration tank 2 after the evaporation liquid from the main heater 10 is flashed in the vacuum evaporation tank 1, and the concentrated solution in the concentration tank 2 can enter the main heater 10 through the evaporation liquid circulating pump 9 for heating and circular evaporation;
The L end of the main heater 10 is connected with a high-temperature water pump 11 through a pipeline, one end of the high-temperature water pump 11 is connected with an O end of a heat pump unit 13 through a pipeline, the P end of the heat pump unit 13 is connected with a heat source water pump 14 through a pipeline, one end of the heat source water pump 14 is connected with a T end of a condenser 16 through a pipeline, and the U end of the condenser 16 is connected with a Q end of the heat pump unit 13 through a pipeline; the S end of the heat pump unit 13 is connected with the M end of the main heater 10 through a pipeline, and the N end of the main heater 10 is connected with the C end of the vacuum evaporation tank 1 through a pipeline; the heat of the main heater 10 comes from the heat pump unit 13, the hot water inlet and outlet of the main heater 10 are connected with the outlet and inlet of the heat pump unit 13, the heat of the heat source water of the heat pump unit 13 comes from the condenser 16, the heat of the condenser 16 comes from the evaporation steam of the vacuum evaporation tank 1, and the heat pump unit 13 extracts the heat of the evaporation steam of the evaporation liquid to heat the evaporation liquid, so that the cyclic utilization of the heat for evaporation is realized; the heat exchange between the condenser 16 and the evaporated steam can be in a face type or a spray type, when the condenser 16 is in a spray type mixed cooling mode, a demister is additionally arranged at the outlet of the condenser 16 or the condenser 16 is divided into a high temperature section and a low temperature section, the condensed water enters a heat pump, and the redundant condensed water is recycled.
The F end of the heat exchanger 4 is connected with a connecting pipeline 19 through a pipeline, and the G end of the heat exchanger 4 is connected with a stock solution pipeline; the J end of the centrifugal machine 5 is connected with a vacuum dryer 7 through a pipeline; a first expansion water tank 12 is arranged between the high-temperature water pump 11 and the O end of the heat pump unit 13, and a second expansion water tank 18 is arranged between the heat source water pump 14 and the T end of the condenser 16; the end B of the vacuum evaporation tank 1 is connected with one end of a condenser 16 through a pipeline, the other end of the condenser 16 is connected with a vacuum unit 17 through a pipeline, the vacuum unit 17 is a vacuum unit formed by combining a Roots vacuum pump and a water ring vacuum pump, and the vacuum unit can extract the highest vacuum at the corresponding condensation temperature; the evaporated steam is cooled by the condenser 16 to be condensed into water to form vacuum in the condenser, and the vacuum with a certain value is a necessary condition for the whole evaporation system to complete low-temperature evaporation, so that a vacuum unit 17 is arranged at an exhaust port of the condenser 16 in order to keep the vacuum of the condenser 16; a condensation tank 15 is installed at one side of the condenser 16; the whole system utilizes high-temperature hot water circulation produced by the heat pump unit 13 to heat the concentrated solution, steam evaporated from the heated concentrated solution enters the condenser 16 to be condensed and absorbed by cold water discharged by the heat pump unit 13, and condensed water formed after the heat release and condensation of flash steam enters the condensation tank 15 to be recycled.
When the evaporator is used, raw liquid to be evaporated enters a heat exchanger 4 to exchange heat with high-temperature concentrated liquid from a concentration tank 2, then is mixed with separating liquid from a vacuum evaporation tank 1 and a separating liquid tank 6 by a separating liquid pump 8 in a pipeline, and then enters a main heater 10 to be heated by an evaporating liquid circulating pump 9, the heated mixed liquid enters the vacuum evaporation tank 1 to flash water vapor, the flash water vapor enters a condenser 16 to condense and release heat, and non-condensing gas containing a small amount of vapor, which is discharged by the condenser 16, is exhausted by a vacuum unit 17;
The heat source water temperature of the heat pump unit 13 absorbing the heat released by the condensation of flash steam in the condenser 16 is increased and then enters the heat pump unit 13, the high-temperature hot water produced by the heat pump unit 13 through extracting the heat of the heat source water becomes the heat source of the main heater 10, the flash steam condensation water which is condensed by the low-temperature water discharged by the cold end of the heat pump unit 13 and has reduced temperature is recycled, when the condenser 16 is in a spray type mixed cooling mode, a demister is additionally arranged at the outlet of the condenser 16 or the condenser 16 is divided into a high-temperature section and a low-temperature section, the condensed water part enters the heat pump, and the redundant condensation water part is recycled;
The high-temperature concentrated solution from the concentration tank 2 at the bottom of the vacuum evaporation tank 1 is cooled and crystallized by new evaporation stock solution through the heat exchanger 4, then enters the centrifugal machine 5 for solid-liquid separation, the separated evaporation solution enters the separation solution box 6 and is sent into the main heater 10 through the separation solution pump 8 for circular evaporation, and the separated solid is formed into a product or enters the vacuum dryer 7 for process drying.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The low-temperature vacuum evaporation drying system comprises a vacuum evaporation tank (1), and is characterized in that: the utility model discloses a vacuum evaporation tank, including vacuum evaporation tank (1), vacuum evaporation tank (2) are provided with concentrate pump (3) through the pipe connection to A end, the one end of concentrate pump (3) is provided with the D end of heat exchanger (4) through the pipe connection, the E end of heat exchanger (4) is provided with centrifuge (5) through the pipe connection, the I end of centrifuge (5) is provided with separation liquid case (6) through the pipe connection, the one end of separation liquid case (6) is provided with separation liquid pump (8) through the pipe connection, the one end of separation liquid pump (8) is provided with connecting pipe (19) through the pipe connection, install evaporation liquid circulating pump (9) on connecting pipe (19), the one end of evaporation liquid circulating pump (9) is provided with the K end of main heater (10) through the pipe connection, the L end of main heater (10) is provided with high temperature water pump (11) through the pipe connection, the one end of heat pump set (13) is provided with the O end through the pipe connection, the P end of heat pump set (13) is provided with the heat pump set (14) through the pipe connection, the one end of heat pump set (16) is provided with the heat pump set (16) through the heat pump (16) through the one end of heat pump set (16), the S end of the heat pump unit (13) is connected to the M end of the main heater (10) through a pipeline, and the N end of the main heater (10) is connected to the C end of the vacuum evaporation tank (1) through a pipeline.
2. A low temperature vacuum evaporation drying system according to claim 1, wherein: the F end of the heat exchanger (4) is connected to the connecting pipeline (19) through a pipeline, and the G end of the heat exchanger (4) is connected with a stock solution pipeline.
3. A low temperature vacuum evaporation drying system according to claim 1, wherein: the J end of the centrifugal machine (5) is connected with a vacuum dryer (7) through a pipeline.
4. A low temperature vacuum evaporation drying system according to claim 1, wherein: a first expansion water tank (12) is arranged between the high-temperature water pump (11) and the O end of the heat pump unit (13), and a second expansion water tank (18) is arranged between the heat source water pump (14) and the T end of the condenser (16).
5. A low temperature vacuum evaporation drying system according to claim 1, wherein: the end B of the vacuum evaporation tank (1) is connected with one end of a condenser (16) through a pipeline, and the other end of the condenser (16) is connected with a vacuum unit (17) through a pipeline.
6. A low temperature vacuum evaporation drying system according to claim 1, wherein: one side of the condenser (16) is provided with a condensation water tank (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322695761.0U CN220801965U (en) | 2023-10-08 | 2023-10-08 | Low-temperature vacuum evaporation drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322695761.0U CN220801965U (en) | 2023-10-08 | 2023-10-08 | Low-temperature vacuum evaporation drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220801965U true CN220801965U (en) | 2024-04-19 |
Family
ID=90673978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322695761.0U Active CN220801965U (en) | 2023-10-08 | 2023-10-08 | Low-temperature vacuum evaporation drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220801965U (en) |
-
2023
- 2023-10-08 CN CN202322695761.0U patent/CN220801965U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105923676B (en) | High-efficiency solar sea water desalination and air conditioner refrigerating cooperation method and system | |
| CN103466736B (en) | A kind of circulating treating system of high-concentration salt-containing wastewater and technique | |
| CN102616973B (en) | Method and device for processing high-saline organic wastewater | |
| WO2017020767A1 (en) | Multi-stage plate-type evaporation absorption cooling device and method | |
| CN105819531A (en) | Energy-saving heat pump type intermediate-temperature spray evaporation system | |
| CN108840386A (en) | A kind of ammonia steaming system | |
| WO2020019922A1 (en) | Heat pump solution concentration cogeneration system and method | |
| US20210222938A1 (en) | Heat-source-tower heat pump system combined with ice maker | |
| CN113310246A (en) | Wine condensation heat energy comprehensive utilization system and heat energy comprehensive utilization method | |
| CN219735652U (en) | Supercritical CO2 refrigeration cycle coupling high-salt water evaporation zero-emission system | |
| CN113307433A (en) | Four-effect cross-flow pharmaceutical wastewater evaporative crystallization system with external heat exchanger | |
| CN206278947U (en) | Heat-pump-type efficient cryogenic sea water desalinating unit | |
| CN220801965U (en) | Low-temperature vacuum evaporation drying system | |
| CN208916845U (en) | A kind of ammonia steaming system | |
| CN208603748U (en) | A kind of water treatment vaporization system | |
| CN106439766A (en) | Steam production device and direct compression type heat pump system | |
| CN101032320B (en) | Method for crystallization, concentration of monosodium glutamate and recycling method of second-time refrigerating residual heat of steam | |
| CN109350983A (en) | A kind of two-stage compression heat pump double-effect evaporation concentration systems | |
| CN103542592A (en) | Direct combustion type lithium bromide absorption cold and hot water unit with heat recycling function | |
| CN209270860U (en) | A kind of two-stage compression heat pump double-effect evaporation concentration systems | |
| CN103277996A (en) | Drying system based on heat pump and application method thereof | |
| CN207585131U (en) | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating | |
| CN111870975A (en) | Solution concentration device for heat source tower system | |
| CN205619405U (en) | Heat supply network drainage system | |
| CN105435480A (en) | Vacuum push-pull alcohol concentration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |