CN214059960U - Porous material thermal distillation water purification system driven by working medium circulation - Google Patents
Porous material thermal distillation water purification system driven by working medium circulation Download PDFInfo
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- CN214059960U CN214059960U CN202022399243.0U CN202022399243U CN214059960U CN 214059960 U CN214059960 U CN 214059960U CN 202022399243 U CN202022399243 U CN 202022399243U CN 214059960 U CN214059960 U CN 214059960U
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- 239000011148 porous material Substances 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000004821 distillation Methods 0.000 title claims abstract description 31
- 238000000746 purification Methods 0.000 title claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 46
- 230000005494 condensation Effects 0.000 claims abstract description 46
- 238000001704 evaporation Methods 0.000 claims abstract description 32
- 230000008020 evaporation Effects 0.000 claims abstract description 30
- 238000005057 refrigeration Methods 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 abstract description 29
- 238000002360 preparation method Methods 0.000 abstract description 9
- 238000010992 reflux Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 12
- 238000003860 storage Methods 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000004108 freeze drying Methods 0.000 description 7
- 239000008213 purified water Substances 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000002041 carbon nanotube Substances 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 1
- 238000010146 3D printing Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the water treatment, a porous material thermal distillation water purification system based on working medium circulation drive is related to. The system mainly comprises a Carnot circulating device, a porous material and a closed cavity. The Carnot circulating device is composed of a compressor, a condensation heat-releasing sheet, an expansion valve and an evaporation refrigerating sheet. The porous material, the condensation heat release sheet and the evaporation refrigeration sheet are placed in the closed cavity. The system can synchronously realize hot distillation concentration and clean water preparation of wastewater, when the system works, wastewater to be treated is guided to the porous material, the porous material adsorbs the wastewater and evaporates, meanwhile, the heat release end of condensation of the Carnot circulating device heats the porous material after water absorption to enhance the evaporation effect, and the evaporation refrigeration piece of the Carnot circulating device enhances the condensation reflux effect of water vapor as the low-temperature condensation end. The system has important significance for the preparation and application of compact and efficient clean water, and is easy to be used for large-scale parallel industrial clean water treatment.
Description
Technical Field
The utility model belongs to the technical field of the water treatment, a porous material thermal distillation water purification system based on working medium circulation drive is related to.
Background
Currently, the world faces a serious challenge of insufficient clean water resources. Research analysis has shown that by 2050, at least half of the world population is facing a shortage of fresh water resources. The existing clean water preparation technology comprises reverse osmosis, electrodialysis, thermal distillation and the like, and the problem of contradiction between high-efficiency yield energy consumption ratio and floor area still exists. The specific thermal distillation technology comprises specific technical principles such as multi-effect distillation, multi-stage flash evaporation, membrane distillation, solar thermal distillation and the like, and also faces the problems of inflexible high-efficiency equipment and inflexible flexible equipment.
The porous material has excellent characteristics of low density, high specific surface area and the like, the porous material has a very quick effect in the process of adsorbing wastewater to evaporate, but the process of obtaining clean water through a single evaporation and condensation process is an energy-consuming process and needs to effectively and completely recover condensation heat. By introducing the cold and hot temperature difference driven by working medium circulation, heat energy can be directly provided for the evaporation process in the thermal distillation and absorbed by the condensation process, and efficient energy recycling is generated.
Disclosure of Invention
The utility model aims at providing a working medium cycle driven porous material thermal distillation water purification system utilizes porous material's characteristics, through introducing working medium cycle driven cold and hot difference in temperature, directly provides heat energy and the heat energy is absorbed to the condensation process among the thermal distillation, produces efficient energy retrieval and utilization.
The utility model provides a porous material thermal distillation water purification system driven by working medium circulation, which comprises a porous material, a condensation heat-release sheet, an evaporation refrigeration sheet, a closed cavity, an expansion valve and a compressor; the porous material, the condensation heat release sheet and the evaporation refrigeration sheet are placed in the closed cavity, and the porous material and the condensation heat release sheet are mutually attached; the compressor, the condensation heat-releasing sheet, the expansion valve and the evaporation refrigerating sheet are sequentially connected end to form a closed Carnot circulation loop.
In the porous material thermal distillation water purification system, the porosity of the porous material is 10-99%, and the average pore diameter of the porous material is 10 nanometers-10 centimeters.
The utility model provides a working medium cycle driven porous material thermal distillation water purification system, its advantage:
1. in the porous material thermal distillation water purification system driven by the working medium circulation, the porous material is used for absorbing heat and absorbing water for evaporation, and the porous material thermal distillation water purification system has high-efficiency evaporation and heat transfer performance; the high-efficiency recycling of energy in the evaporation and condensation process of the porous material is ensured by combining a Carnot circulating device; wherein, the single-machine Carnot cycle combines the thermal distillation of porous materials, and the wastewater desalination technology with large flux and high energy efficiency ratio can be realized in a compact small space; the porous material is not easy to scale and block in the infiltration and evaporation process, can work for a long time, and is applied to desalination and concentration treatment of various waste water.
2. The utility model discloses a porous material thermal distillation water purification system of working medium circulation driven the system possesses outstanding clean water and prepares speed, efficient efficiency ratio to and compact system area. Can carry out the work of desalinating and concentrating wastewater for a long time compactly and efficiently.
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, and may be embodied in the form of the following description.
Drawings
Fig. 1 is a schematic structural diagram of a porous material thermal distillation water purification system driven by working medium circulation according to the present invention.
Fig. 2 is an application state diagram of the porous material thermal distillation water purification system of the present invention.
In fig. 1 and 2, 1 is a porous material, 2 is a condensation heat-release sheet, and 3 is an evaporation refrigeration sheet; 4 is a closed cavity, 5 is an expansion valve, 6 is a compressor, 7 is a wastewater storage tank, 8 is a purified water storage tank, 9 is a wastewater circulating feed pump, 10 is a wastewater circulating reflux pump, and 11 is a purified water collecting pump.
Detailed Description
The utility model provides a porous material thermal distillation water purification system driven by working medium circulation, the structure of which is shown in figure 1, comprising a porous material 1, a condensation heat-release sheet 2, an evaporation refrigeration sheet 3, a closed cavity 4, an expansion valve 5 and a compressor 6; the porous material 1, the condensation heat release sheet 2 and the evaporation refrigeration sheet 3 are placed in the closed cavity 4, and the porous material 1 and the condensation heat release sheet 2 are mutually attached; the compressor 6, the condensation heat-release sheet 2, the expansion valve 5 and the evaporation refrigeration sheet 3 are sequentially connected end to form a closed Carnot circulation loop.
In the above porous material thermal distillation water purification system, the bonding mode of the porous material and the condensation heat-release sheet is back-to-back bonding, or the porous material is coated outside the condensation heat-release sheet.
In the above porous material thermal distillation water purification system, the preparation method of the porous material comprises the following steps:
(1) dissolving a functional material in water to obtain an aqueous solution of the functional material, wherein the mass percentage concentration of the functional material is 0.01-10%, and the functional material is graphene oxide, a carbon nano tube or polyvinyl alcohol;
(2) putting the functional material aqueous solution into a low-temperature cold trap to be frozen into an ice crystal block;
(3) and (3) placing the ice crystal block in a low-temperature vacuum dryer, and carrying out freeze drying treatment at the temperature of-100 to-10 ℃, under the vacuum pressure of 0.1 to 20Pa and for 0.5 to 10 days to obtain the porous material constructed by the functional material.
The porosity of the porous material in the thermal distillation water purification system is 10-99%, and the average pore diameter of the porous material is 10 nanometers-10 centimeters.
Embodiments of the present invention are described in detail below. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
In an application embodiment of the present invention, the structure of the porous material thermal distillation water purification system is shown in fig. 2, and the porous material 1, the condensation heat-releasing sheet 2 and the evaporation refrigerating sheet 3 are used; the device comprises a closed cavity 4, an expansion valve 5, a compressor 6, a waste water storage tank 7, a purified water storage tank 8, a waste water circulating feed pump 9, a waste water circulating reflux pump 10 and a purified water collecting pump 11. The compressor 6, the condensation heat-releasing sheet 2, the expansion valve 5 and the evaporation refrigerating sheet 3 are connected end to form a closed loop, and the Carnot circulating device is formed. The porous material 1, the condensation heat release sheet 2 and the evaporation refrigeration sheet 3 are placed in the closed cavity 4, and meanwhile, the porous material 1 is attached to the condensation heat release sheet 2. The waste water storage tank 7 is connected with a waste water inlet, a concentration outlet, a waste water circulating feed pump 9 and a waste water circulating return pump 10. The pipeline of the wastewater circulating water feeding pump 9 is opened above the closed cavity 4 and is contacted with the upper end of the porous material 1. The pipeline of the wastewater circulating reflux pump 10 is provided with a hole below the closed cavity 4. The purified water storage tank 8 is connected with a purified water outlet and a purified water collecting pump 11.
When the system works, wastewater is led into the wastewater storage tank 7 from the wastewater inlet, the wastewater is pumped to the upper end of the porous material 1 from the wastewater storage tank 7 by the wastewater circulating water feeding pump 9, the porous material 1 spontaneously adsorbs the wastewater and evaporates clean water vapor, and the evaporated concentrated wastewater flows to the wastewater circulating reflux pump 10 from the lower end of the porous material 1 and is pumped back to the wastewater storage tank 7. Clean steam evaporated from the porous material 1 is condensed on the evaporation refrigeration sheet 3 into clean water droplets and drips and flows back to the clean water collection pump 11, the clean water is pumped into the clean water storage tank 8 by the clean water collection pump 11, and the clean water in the clean water storage tank 8 can be transmitted to a next stage from a clean water outlet for drinking, irrigation and other purposes. The Carnot circulating device plays a role in enhancing heat supply in the evaporation process of water and heat extraction in the condensation process, specifically, the electric compressor 6 works to drive the internal working medium gas to be compressed into a high-temperature high-pressure state, the working medium gas flows into the condensation heat-releasing sheet 2, is condensed in an internal pipeline of the condensation heat-releasing sheet 2 and releases a large amount of heat, and the heat released from the outside heats the attached porous material 1, so that the evaporation of the porous material 1 is enhanced; meanwhile, the low-temperature high-pressure working medium liquid after condensation and heat release flows through the expansion valve and is converted into a low-temperature low-pressure liquid state, the liquid is evaporated into gas and absorbs a large amount of heat inside the evaporation and refrigeration sheet 3, and the heat absorbed from the outside is expressed as the heat released by condensed water drops, so that the low-temperature high-efficiency condensation and water condensation capacity is kept on the surface of the evaporation and refrigeration sheet 3.
The porous material used in the system of the utility model can be selected from graphene oxide, carbon nano tube or polyvinyl alcohol and the like as functional materials used in the preparation process; the process of preparing the porous structure may be freeze-drying, thermal foaming, etching, 3D printing, and the like.
The embodiment of the utility model provides an in, when using the graphene oxide as the functional material of preparation porous material, the mass percent concentration of graphene oxide is 1.5%, and the solution total amount is 100g, and it is-47 ℃ to be the temperature when carrying out freeze-drying and handling, and vacuum pressure is 10Pa, and drying time is 3 days, and the porosity of the porous material who obtains is 99%, and porous material's average pore diameter is 100 microns.
The embodiment of the utility model provides an in, when using carbon nanotube as the functional material of preparation porous material, carbon nanotube's mass percent concentration is 0.5%, and the solution total amount is 50g, and it is-55 ℃ to be the temperature when carrying out freeze-drying and handling, and vacuum pressure is 6Pa, and drying time is 2 days, and the porosity of the porous material who obtains is 99.3%, and porous material's average pore diameter is 30 microns.
The embodiment of the utility model provides an in, when using the polyvinyl alcohol as the functional material of preparation porous material, the mass percent concentration of polyvinyl alcohol is 5%, and the solution total amount is 200g, and it is-45 ℃ to be the temperature when carrying out freeze-drying and handling, and vacuum pressure is 15Pa, and drying time is 5 days, and the porosity of the porous material who obtains is 91%, and porous material's average pore diameter is 300 microns.
The embodiment of the utility model provides an in, the inside compression working medium of carnot circulating device can be selected according to power, the many-sided demand of environmental protection and security, can adopt R404A (pentafluoroethane/trifluoroethane/tetrafluoroethane mixture), R410A (difluoromethane/pentafluoroethane mixture), R134a (tetrafluoroethane) etc. the optional dupont of supply company of refrigerant, honowe, Zhejiang giant etc. (the model of refrigerant is its abbreviation, like R134 a). The selection of the compressor in the carnot cycle unit should be matched according to the designed condensing power of the system, and selected from commercial compressors. The types of the condensing heat sink and the evaporating heat sink in the carnot cycle device should be selected according to the design power of the compressor, for example, for a compressor with a refrigerating capacity of 500W, the condensing heat sink and the evaporating heat sink with a nominal heat dissipation power equal to or slightly greater than 500W should be selected, and both types may be selected to be the same, such as CP26240 type of wave-removing technology company. The preparation process of the closed cavity is mainly determined according to the selected materials and can be selected according to the general principle of the industry.
The utility model discloses an among the porous material thermal distillation water purification system, in the evaporation condensation process of vapor can not flee the atmosphere, so need seal the airtight cavity that the system contained and the connection between other subassemblies and the pipeline.
The utility model discloses a working medium circulation driven porous material thermal distillation water purification system, porous material 1 and condensation heat release piece 2's laminating can be porous material 1 and condensation heat release piece 2's surface contact, also can be the physical contact mode of the whole cladding condensation heat release piece 2 of porous material 1. The integral coating process is that the porous material 1 is directly prepared and molded on the surface of the condensation heat-release sheet 2, for example, for preparing the porous material 1 in a freeze drying mode, firstly, the functional material aqueous solution is immersed in the condensation heat-release sheet 2 or coated on the surface of the condensation heat-release sheet 2, then, the condensation heat-release sheet 2 with the functional material aqueous solution attached on the surface is placed into a low-temperature freeze dryer, and freeze drying treatment is carried out for a proper time, so that the condensation heat-release sheet 2 integrally coated with the porous material 1 can be obtained.
Claims (2)
1. A porous material thermal distillation water purification system driven by working medium circulation is characterized by comprising a porous material, a condensation heat-release sheet, an evaporation refrigeration sheet, a closed cavity, an expansion valve and a compressor; the porous material, the condensation heat release sheet and the evaporation refrigeration sheet are placed in the closed cavity, and the porous material and the condensation heat release sheet are mutually attached; the compressor, the condensation heat-releasing sheet, the expansion valve and the evaporation refrigerating sheet are sequentially connected end to form a closed Carnot circulation loop.
2. The porous material thermal distillation water purification system of claim 1, wherein the porous material and the condensation heat-release sheet are attached back-to-back or the porous material covers the condensation heat-release sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399243.0U CN214059960U (en) | 2020-10-26 | 2020-10-26 | Porous material thermal distillation water purification system driven by working medium circulation |
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| CN202022399243.0U CN214059960U (en) | 2020-10-26 | 2020-10-26 | Porous material thermal distillation water purification system driven by working medium circulation |
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| CN214059960U true CN214059960U (en) | 2021-08-27 |
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| CN202022399243.0U Active CN214059960U (en) | 2020-10-26 | 2020-10-26 | Porous material thermal distillation water purification system driven by working medium circulation |
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