CN210656555U - Brackish water treatment facilities based on electrosorption technology - Google Patents
Brackish water treatment facilities based on electrosorption technology Download PDFInfo
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- CN210656555U CN210656555U CN201921703954.3U CN201921703954U CN210656555U CN 210656555 U CN210656555 U CN 210656555U CN 201921703954 U CN201921703954 U CN 201921703954U CN 210656555 U CN210656555 U CN 210656555U
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Abstract
The utility model discloses a brackish water treatment device based on an electro-adsorption process, which comprises a water distribution tank and a desalting device; the desalting device comprises a direct current control box and a desalting tank; a plurality of positive electrode plates and a plurality of negative electrode plates are arranged inside the desalting tank; the plurality of positive electrode plates and the plurality of negative electrode plates are arranged in a staggered manner; the desalting tank is communicated with the water distribution tank; the bottom of the desalting tank is communicated with a fresh water tank; the bottom of the desalting tank is also communicated with a strong brine evaporator; one side of the strong brine evaporator is communicated with the fresh water tank, and the other side of the strong brine evaporator is communicated with the salt recovery tank for resource utilization. The full utilization of the bitter salt water resource is realized.
Description
Technical Field
The utility model belongs to the technical field of water treatment, concretely relates to bitter water treatment facilities based on electrosorption technology.
Background
The method is characterized in that the per capita fresh water resource is relatively deficient, the development and utilization of unconventional water resources are effective ways for solving the problem of fresh water resources, and the brackish water desalination is an important source of the unconventional water resources and is mainly distributed in northwest regions and northeast coastal regions. The traditional brackish water desalination technology mainly comprises a distillation method, an electrodialysis method, a multistage reverse osmosis method and the like. The distillation method is a process of boiling and evaporating brackish water or seawater and condensing the vapor into fresh water. The distillation method is the most early brackish water desalination method, and has the main advantages of simple structure, easy operation and good quality of obtained fresh water. There are many types of distillation methods, such as multiple effect evaporation, multi-stage flash evaporation, vapor compression distillation, membrane distillation, and the like. The electrodialysis method is a membrane separation technology which utilizes an ion exchange membrane to separate anions and cations in the brine under the action of an electric field, so that the concentration of salt in a fresh water chamber is reduced to obtain fresh water. The electrodialysis device utilizes the directional migration of ions under the action of an electric field and achieves the aim of desalting through a permselective ion exchange membrane. The electrodialysis brackish water desalination technology is mature, has the main advantages of simple process, high desalination rate, low water production cost, convenient operation, no environmental pollution and the like, and has the defects of strict requirement on water quality, pretreatment on raw water and the like. Reverse osmosis is the process of applying a higher pressure to one side of a concentrated solution than natural osmosis, reversing the direction of natural osmosis, and forcing ions in the solution to the other side of a semi-permeable membrane, as opposed to the normal osmosis process in nature, and is called reverse osmosis. The reverse osmosis desalination method can remove more than 90% of soluble salts, more than 99% of colloidal microorganisms, organic matters and the like from water. Compared with other water treatment methods, the method has the advantages of no phase change, normal-temperature operation, simple equipment, high benefit, small occupied area, convenient operation, low energy consumption, wide application range, high automation degree, good water outlet quality and the like.
Wherein, the distillation method and the electrodialysis method both belong to high energy-consuming technologies, and the desalination treatment cost is very high; the reverse osmosis method has the disadvantages of high initial installation cost, complex operation management, short service life of the reverse osmosis membrane and high operation cost. The electro-adsorption method is also called as capacitance desalination method, which is a new water treatment technology that utilizes the phenomenon that charged electrode surface adsorbs ions and charged particles in water to make dissolved salts and other charged substances in water concentrate and concentrate on the surface of electrode to realize water purification and desalination. An electrostatic field is formed between the electrodes by applying a low voltage (typically 1 to 3 volts), and the charged particles are forced to move toward the oppositely charged electrode plates by electrostatic force in the electrostatic field, so that an electric double layer is formed on the surfaces of the electrode plates, and the charged particles are adsorbed and temporarily stored in the electric double layer. When the adsorption process reaches the equilibrium, the electric field is removed or the power supply is reversely connected, and the ions adsorbed on the electrode return to the solution to achieve the purpose of desorption. Electro-adsorption technology has many advantages: (1) the electro-adsorption technology has little pollution and high energy utilization rate, does not generate by-products in the whole process, and is environment-friendly; (2) the electric adsorption process is simple to operate; (3) the electro-adsorption technology has high utilization rate of resources, and can separate substances with low content and difficult separation by a conventional method.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a bitter water treatment facilities based on electrosorption technology to solve the problem that the bitter salt water can not obtain the component and utilize among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: a bitter treatment device based on an electro-adsorption process comprises a water distribution tank and a desalting device; the desalting device comprises a direct current control box and a desalting tank; a plurality of positive electrode plates and a plurality of negative electrode plates are arranged in the desalting tank; the plurality of positive electrode plates and the plurality of negative electrode plates are arranged in a staggered manner; the desalting tank is communicated with the water distribution tank; the bottom of the desalting tank is communicated with a fresh water tank; the bottom of the desalting tank is also communicated with a strong brine evaporator; one side of the strong brine evaporator is communicated with the fresh water tank; and the other side of the strong brine evaporator is communicated with a salt recovery box.
Further, a gap exists between adjacent positive and negative electrode plates.
Further, the bottom of the water distribution tank is communicated with a water distribution pump; the output end of the water distribution pump is communicated with the desalting tank through a water conveying pipe.
Further, a flow meter is connected between the water distribution pump and the desalting tank.
Further, the bottom of the desalting tank is communicated with a first fresh water outlet pipe; the desalting tank is communicated with the fresh water tank through a first fresh water outlet pipe.
Furthermore, a first fresh water outlet valve is connected to the first fresh water outlet pipe.
Furthermore, one side of the bottom of the desalting tank is communicated with a strong brine water pump; the strong brine water pump output end is communicated with the strong brine evaporator input end.
Further, the strong brine evaporator comprises an evaporator inner pipe and an evaporator outer pipe; the fresh water tank is communicated with the evaporator outer pipe; the salt recovery tank is communicated with the evaporator inner pipe.
Further, one side of the bottom of the outer pipe of the evaporator is communicated with a second fresh water outlet pipe; the outer pipe of the evaporator is communicated with the fresh water tank through a second fresh water outlet pipe; and the second fresh water outlet pipe is connected with a second fresh water outlet valve.
Further, the bottom of the inner pipe of the evaporator is communicated with a salt recovery pipe; one end of the salt recovery pipe penetrates through the outer pipe of the evaporator and is communicated with the salt recovery tank; and the salt recovery pipe is connected with a salt recovery valve.
The utility model has the advantages of as follows: a bitter treatment device based on an electro-adsorption process comprises a water distribution tank and a desalting device; the desalting device comprises a direct current control box and a desalting tank; a plurality of positive electrode plates and a plurality of negative electrode plates are arranged inside the desalting tank; the plurality of positive electrode plates and the plurality of negative electrode plates are arranged in a staggered manner; the desalting tank is communicated with the water distribution tank; the bottom of the desalting tank is communicated with a fresh water tank; the bottom of the desalting tank is also communicated with a strong brine evaporator; one side of the strong brine evaporator is communicated with the fresh water tank, and the other side of the strong brine evaporator is communicated with the salt recovery tank. The brackish water is delivered into the electro-adsorption desalting device through the water distribution tank and the water distribution pump, the brackish water entering the desalting device is adsorbed by the positive and negative adsorption electrodes respectively under the condition of electrifying, the brackish water is desalted after being electrified for a period of time, and the desalted water enters the fresh water tank; after the adsorption electrode is saturated, closing the first fresh water outlet valve, connecting the positive adsorption electrode and the negative adsorption electrode in a reverse direction, and releasing the adsorbed anions and cations into the brackish water to obtain strong brine; the strong brine is pumped into a strong brine evaporator through a strong brine water pump, the fresh water obtained by evaporation enters a fresh water tank after evaporation, and the concentrated solution after evaporation enters a salt recovery tank for resource utilization. The full utilization of the bitter salt water resource is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of the overall structure of a brackish water treatment device based on an electro-adsorption process according to an embodiment of the present invention.
In the figure: the desalination device comprises a water distribution tank 1, a desalination device 2, a direct current control box 21, a desalination tank 26, a positive electrode plate 22, a negative electrode plate 27, a fresh water tank 4, a strong brine evaporator 3, a salt recovery tank 5, a water distribution pump 11, a flowmeter 12, a first fresh water outlet pipe 23, a first fresh water outlet valve 24, a strong brine water suction pump 25, an evaporator inner pipe 31, an evaporator outer pipe 32, a second fresh water outlet pipe 33, a second fresh water outlet valve 34, a salt recovery pipe 35 and a salt recovery valve 36.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a bitter water treatment facilities based on electrosorption technology, please refer to fig. 1, including water distribution tank 1 and desalination device 2; the desalting device 2 comprises a direct current control box 21 and a desalting tank 26; three positive electrode plates 22 and two negative electrode plates 27 are arranged inside the desalting tank 26 of the embodiment; a plurality of positive electrode plates 22 and a plurality of negative electrode plates 27 are arranged alternately; the desalting tank 26 is communicated with the water distribution tank 1; the bottom of the desalting tank 26 is communicated with a fresh water tank 4; the bottom of the desalting tank 26 is also communicated with a strong brine evaporator 3; one side of the strong brine evaporator 3 is communicated with a fresh water tank 4, and the other side of the strong brine evaporator 3 is communicated with a salt recovery tank 5. Note that a gap is present between the adjacent positive electrode plate 27 and negative electrode plate 22. Providing enough electrolysis space for electrolysis. The bottom of the water distribution tank 1 is communicated with a water distribution pump 11; the output end of the water distribution pump 11 is communicated with the desalting tank 26 through a water conveying pipe. A flow meter 12 is connected between the water distribution pump 11 and the desalting tank 26. The bottom of the desalting tank 26 is communicated with a first fresh water outlet pipe 23; the desalination tank 26 is communicated with the fresh water tank 4 through a first fresh water outlet pipe 23. The first fresh water outlet pipe 23 is connected with a first fresh water outlet valve 24. One side of the bottom of the desalting tank 26 is communicated with a strong brine water pump 25; the output end of the strong brine water pump 25 is communicated with the input end of the strong brine evaporator 3. The strong brine evaporator 3 comprises an evaporator inner pipe 31 and an evaporator outer pipe 32; the fresh water tank 4 communicates with the evaporator outer tube 32; the salt recovery tank 5 communicates with the evaporator inner tube 31. One side of the bottom of the evaporator outer pipe 32 is communicated with a second fresh water outlet pipe 33; the evaporator outer pipe 32 is communicated with the fresh water tank 4 through a second fresh water outlet pipe 33; the second fresh water outlet pipe 33 is connected with a second fresh water outlet valve 34. The bottom of the evaporator inner pipe 31 is communicated with a salt recovery pipe 35; one end of the salt recovery pipe 35 penetrates through the evaporator outer pipe 32 and is communicated with the salt recovery tank 5; the salt recovery pipe 35 is connected with a salt recovery valve 36.
When the device is used, the brackish water is delivered into the electro-adsorption desalting device through the water distribution tank and the water distribution pump 11, the brackish water entering the desalting device is adsorbed by the positive and negative adsorption electrodes respectively under the condition of electrifying, the brackish water is desalted after being electrified for a period of time, and the desalted water enters the fresh water tank; after the adsorption electrode is saturated, closing the first fresh water outlet valve, connecting the positive adsorption electrode and the negative adsorption electrode in a reverse direction, and releasing the adsorbed anions and cations into the brackish water to obtain strong brine; the strong brine is pumped into a strong brine evaporator through a strong brine water pump, the fresh water obtained by evaporation enters a fresh water tank after evaporation, and the concentrated solution after evaporation enters a salt recovery tank for resource utilization. The full utilization of the bitter salt water resource is realized.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. A brackish water treatment device based on an electro-adsorption process is characterized by comprising a water distribution tank and a desalting device; the desalting device comprises a direct current control box and a desalting tank; a plurality of positive electrode plates and a plurality of negative electrode plates are arranged in the desalting tank; the plurality of positive electrode plates and the plurality of negative electrode plates are arranged in a staggered manner; the desalting tank is communicated with the water distribution tank; the bottom of the desalting tank is communicated with a fresh water tank; the bottom of the desalting tank is also communicated with a strong brine evaporator; one side of the strong brine evaporator is communicated with the fresh water tank, and the other side of the strong brine evaporator is communicated with a salt recovery tank.
2. The brackish water treatment device based on the electro-adsorption process as claimed in claim 1, wherein a gap is formed between adjacent positive and negative electrode plates.
3. The brackish water treatment device based on the electro-adsorption process as claimed in claim 1, wherein a water distribution pump is communicated with the bottom of the water distribution tank; the output end of the water distribution pump is communicated with the desalting tank through a water conveying pipe.
4. The brackish water treatment device based on the electro-adsorption process as claimed in claim 3, wherein a flow meter is connected between the water distribution pump and the desalting tank.
5. The brackish water treatment plant based on the electro-adsorption process as claimed in claim 1, wherein the bottom of the desalination tank is communicated with a first fresh water outlet pipe; the desalting tank is communicated with the fresh water tank through a first fresh water outlet pipe.
6. The brackish water treatment device based on the electro-adsorption process as claimed in claim 5, wherein a first fresh water outlet valve is connected to the first fresh water outlet pipe.
7. The brackish water treatment device based on the electro-adsorption process as claimed in claim 1, wherein one side of the bottom of the desalting tank is communicated with a strong brine suction pump; the strong brine water pump output end is communicated with the strong brine evaporator input end.
8. The brackish water treatment plant according to claim 7, wherein the concentrated brine evaporator comprises an evaporator inner pipe and an evaporator outer pipe; the fresh water tank is communicated with the evaporator outer pipe; the salt recovery tank is communicated with the evaporator inner pipe.
9. The brackish water treatment device based on the electro-adsorption process as claimed in claim 8, wherein a second fresh water outlet pipe is communicated with one side of the bottom of the outer pipe of the evaporator; the outer pipe of the evaporator is communicated with the fresh water tank through a second fresh water outlet pipe; and the second fresh water outlet pipe is connected with a second fresh water outlet valve.
10. The brackish water treatment device based on the electro-adsorption process as claimed in claim 8, wherein the bottom of the inner pipe of the evaporator is communicated with a salt recovery pipe; one end of the salt recovery pipe penetrates through the outer pipe of the evaporator and is communicated with the salt recovery tank; and the salt recovery pipe is connected with a salt recovery valve.
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| CN201921703954.3U CN210656555U (en) | 2019-10-11 | 2019-10-11 | Brackish water treatment facilities based on electrosorption technology |
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| CN201921703954.3U CN210656555U (en) | 2019-10-11 | 2019-10-11 | Brackish water treatment facilities based on electrosorption technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666564A (en) * | 2021-09-15 | 2021-11-19 | 北京国电富通科技发展有限责任公司 | Outer drainage processing system of current conversion station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113666564A (en) * | 2021-09-15 | 2021-11-19 | 北京国电富通科技发展有限责任公司 | Outer drainage processing system of current conversion station |
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