CN106865701B - Electrolytic cell for seawater desalination mixed capacitor - Google Patents

Abstract

The invention discloses an electrolytic cell for a seawater desalination mixed capacitor, which sequentially comprises a bottom cover with a first lug, a cell body, an electrode arranged in the cell body and a top cover with a second lug from bottom to top, wherein the bottom cover, the cell body, the electrode and the top cover are separately matched, the cell body is provided with a hollow groove, the first lug is clamped with the bottom end of the hollow groove, the second lug is clamped with the top end of the hollow groove, the cell body is respectively provided with a water inlet hole and a water outlet hole, and the water inlet hole and the water outlet hole are respectively connected with the hollow groove through a plurality of connecting holes arranged at intervals on the cell body. The electrolytic cell has the advantages that the electrolytic cell adopts a combined structure which is formed by split matching, has simple structure, is convenient for replacing the electrode and the insulating gasket arranged on the electrode piece, can prevent short circuit and can be repeatedly used, and reduces the production cost.

Description

An electrolytic cell for seawater desalination hybrid capacitor

technical field

The invention belongs to the field of electrolytic cells, in particular to an electrolytic cell used for a mixed capacitor for seawater desalination.

Background technique

With the development of the world economy and industry, the continuous growth of the population and the increasingly serious environmental pollution, the demand for freshwater resources is increasing day by day. How to obtain cheap fresh water from seawater and brackish water, which account for 98% of the world's total water storage, is a growing concern worldwide. At present, the technologies for realizing seawater desalination mainly include distillation, reverse osmosis and electrodialysis. However, these methods have disadvantages such as high energy consumption and secondary pollution. The emergence of capacitive deionization technology has made people see the hope of realizing low-energy consumption and pollution-free seawater desalination.

SUMMARY OF THE INVENTION

Purpose of the invention: The present invention provides an electrolytic cell for seawater desalination hybrid capacitor with sufficient desalination, strong stability and simple structure.

Technical scheme: The electrolytic cell of the present invention for the mixed capacitor of seawater desalination comprises, from bottom to top, the bottom cover of the cell with the first bump, the cell body, the electrode arranged in the The top cover of the pool with two protrusions, the pool body is provided with a hollow groove, the first protrusion is engaged with the bottom end of the hollow groove, the second protrusion is engaged with the top end of the hollow groove, the pool The body is respectively provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively communicated with the hollow groove through a plurality of connecting holes arranged at intervals on the water inlet pipe and the water outlet pipe.

Further, between the pool bottom cover and the pool body of the present invention, there is a first silicone gasket with a central through hole, and the center through hole is fitted with the first bump; between the pool body and the pool top cover There is a second silicone gasket with a central through hole, and the central through hole is fitted with the second bump.

Furthermore, the water inlet pipe and the water outlet pipe of the present invention are symmetrically arranged on the tank body; the electrodes include a cathode sodium manganese oxide electrode and an anode activated carbon electrode, and an insulating gasket is placed between the two electrodes.

Furthermore, in the present invention, the height ratio of the first bump to the second bump is 1:1; the height ratio of the first bump to the pool bottom cover and the pool body is 1:1.25-1.6:2-2.8; The height ratio of the bump to the bottom cover of the pool and the pool body is 1:1.25-1.6:2-2.8.

Beneficial effects: Compared with the prior art, the significant advantages of the present invention are: the electrolytic cell adopts a combined structure that is arranged in separate parts. Short-circuit proof and reusable, reducing production costs.

Description of drawings

Fig. 1 is the structural representation of the electrolytic cell used for seawater desalination hybrid capacitor of the present invention;

Fig. 2 is the internal structure schematic diagram of the pond of the present invention;

FIG. 3 is a schematic diagram of the internal structure of the electrolytic cell used for the hybrid capacitor for seawater desalination according to the present invention.

Detailed ways

The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 , the electrolytic cell of the present invention used for seawater desalination hybrid capacitors includes, from bottom to top, a pool bottom cover 2 with a first bump 1, a pool body 3, a pool bottom cover 2 and a pool body Electrodes 4 in body 3 and cell top cover 6 with second bumps 5 .

Between the pool bottom cover 2 and the pool body 3, there is a first silicone gasket 10 with a central through hole, and the center through hole is fitted with the first bump 1; between the pool body 3 and the pool top cover 6 A second silicone gasket 11 with a central through hole is provided, the central through hole is fitted with the second bump 5, and a first silicone gasket 10 and a second silicone gasket 11 are respectively disposed to prevent liquid from flowing out. The pool body 3 is provided with a hollow groove 7 for accommodating sodium chloride liquid, the first bump 1 is engaged with the bottom end of the hollow groove 7, and the second bump 5 is engaged with the top end of the hollow groove 7, thereby A closed space is formed, and the pool body 3 is also provided with a left and right symmetrically arranged water inlet pipe 8 and a water outlet pipe 9 respectively, and the water inlet pipe 8 and the water outlet pipe 9 are respectively connected with the hollow groove 7 through a number of connecting holes arranged at intervals on it, As shown in FIG. 2 , by setting several connecting holes, the flow rate of the sodium chloride liquid is reduced, so that the sodium chloride liquid can be fully desalinated and the removal rate is improved.

As shown in FIG. 3 , the electrode 4 includes a cathode sodium manganese oxide electrode 12 and an anode activated carbon electrode 13, and an insulating gasket 14 is placed between the two electrodes. The sodium manganese oxide electrode has the desalination performance for high-capacity sodium chloride solution, which is more than twice the desalination capacity of the ordinary deionization system, and the insulating gasket between the two electrodes basically prevents short circuit and makes The sodium chloride solution flows between the electrodes, the short circuit between the electrodes is reduced, and the efficiency of electrolysis is improved.

Example 1

The bottom area of the pool bottom cover 2 and the pool top cover 6 are both 100mm×100mm and the height is 8mm. The bottom area of the first bump 1 and the second bump 5 are both 50mm×50mm and the height is 5mm. It is located in the middle of the pool bottom cover 2 and the pool top cover 6; the bottom area of the first silicone gasket 10 and the second silicone gasket 11 is 100mm×100mm, the height is 1mm, and the area of the central through hole is 50mm×50mm, The bottom area of the tank body 3 is 100mm×100mm, the height is 14mm, the area of the hollow groove 7 is 52mm×52mm, the water inlet pipe 8 and the water outlet pipe 9 are equidistantly provided with 12 connection holes with a diameter of 1mm, and the sodium manganese oxide electrode 12 The area of the electrode 13 is 50mm×50mm, the area of the activated carbon electrode 13 is 50mm×50mm, the area of the insulating gasket 14 is 50mm×50mm, and the electrolytic cell of the present invention is made of organic glass.

Example 2

The bottom area of the pool bottom cover 2 and the pool top cover 6 are both 100mm×100mm and the height is 8mm. The bottom area of the first bump 1 and the second bump 5 are both 50mm×50mm and the height is 5mm. It is located in the middle of the pool bottom cover 2 and the pool top cover 6; the bottom area of the first silicone gasket 10 and the second silicone gasket 11 is 100mm×100mm, the height is 1mm, and the area of the central through hole is 50mm×50mm, The bottom area of the tank body 3 is 100mm×100mm, the height is 14mm, the area of the hollow groove 7 is 52mm×52mm, the water inlet pipe 8 and the water outlet pipe 9 are equidistantly provided with 12 connection holes with a diameter of 1mm, and the sodium manganese oxide electrode 12 The area of the electrode is 50mm×50mm, the area of the activated carbon electrode 13 is 50mm×50mm, the area of the insulating gasket 14 is 50mm×50mm, and the electrolytic cell of the present invention is made of polytetrafluoroethylene.

Example 3

The bottom area of the pool bottom cover 2 and the pool top cover 6 are both 50mm×50mm, and the height is 4mm. They are located in the middle of the pool bottom cover 2 and the pool top cover 6 respectively; the bottom area of the first silicone gasket 10 and the second silicone gasket 11 are both 50mm×50mm, the height is 1mm, and the area of the central through hole is 25mm×25mm , the bottom area of the tank body 3 is 50mm × 50mm, the height is 7mm, the area of the hollow groove 7 is 26mm × 26mm, the water inlet pipe 8 and the water outlet pipe 9 are equidistantly provided with 12 connection holes with a diameter of 1mm, sodium manganese oxide electrodes The area of 12 is 25mm×25mm, the area of activated carbon electrode 13 is 25mm×25mm, the area of insulating gasket 14 is 25mm×25mm, and the electrolytic cell of the present invention is made of plexiglass.

Example 4

The bottom area of the pool bottom cover 2 and the pool top cover 6 are both 100mm×100mm and the height is 10mm. The bottom area of the first bump 1 and the second bump 5 are both 50mm×50mm and the height is 8mm. It is located in the middle of the pool bottom cover 2 and the pool top cover 6; the bottom area of the first silicone gasket 10 and the second silicone gasket 11 is 100mm×100mm, the height is 1mm, and the area of the central through hole is 50mm×50mm, The bottom area of the tank body 3 is 100mm × 100mm, the height is 16mm, the area of the hollow groove 7 is 52mm × 52mm, the inlet pipe 8 and the outlet pipe 9 are equidistantly provided with 12 connection holes with a diameter of 1mm, sodium manganese oxide electrodes The area of 12 is 50mm×50mm, the area of activated carbon electrode 13 is 50mm×50mm, the area of insulating gasket 14 is 50mm×50mm, and the electrolytic cell of the present invention is made of plexiglass.

Example 5

The bottom area of the pool bottom cover 2 and the pool top cover 6 are both 100mm×100mm and the height is 6mm. The bottom area of the first bump 1 and the second bump 5 are both 50mm×50mm and the height is 4mm. It is located in the middle of the pool bottom cover 2 and the pool top cover 6; the bottom area of the first silicone gasket 10 and the second silicone gasket 11 is 100mm×100mm, the height is 1mm, and the area of the central through hole is 50mm×50mm, The bottom area of the pool body 3 is 100mm×100mm, the height is 10mm, the area of the hollow groove 7 is 52mm×52mm, the water inlet pipe 8 and the water outlet pipe 9 are equidistantly provided with 12 connection holes with a diameter of 1mm, and the sodium manganese oxide electrode 12 The area of the electrode 13 is 50mm×50mm, the area of the activated carbon electrode 13 is 50mm×50mm, the area of the insulating gasket 14 is 50mm×50mm, and the electrolytic cell of the present invention is made of organic glass.

Working principle: First, fit the bottom cover 2 and the first silicone gasket 10 with the edge of the pool body 3; secondly, fit the sodium manganese oxide electrode 12 and the activated carbon electrode 13 with the edge of the insulating gasket 14 sandwiched between them, then put Into the tank body 3, place the second silicone gasket 11 and the tank top cover 6, after the same edges fit, use screws to form a whole; finally insert the rubber tube into the water inlet pipe 8, connect the peristaltic pump to the right end, and use the peristaltic pump to The sodium chloride solution is pressed into the water inlet pipe, and through continuous work, the sodium chloride solution after electrolysis and desalination is pressed into the water outlet pipe, so as to achieve the effect of seawater desalination. Similarly, the rubber tube is inserted into the water outlet pipe 9, and the left end is inserted into the beaker , take the desalted solution.

Claims (4)

1. An electrolytic cell for seawater desalination hybrid capacitors, characterized in that: the electrolytic cell sequentially comprises, from bottom to top, a pool bottom cover (2) with a first bump (1), a pool bottom cover (2) with a first bump (1), and a body (3), electrodes (4) arranged in the pool body (3) and a pool top cover (6) with a second bump (5), the pool body (3) is provided with a hollow groove (7) ), the first bump (1) is engaged with the bottom end of the hollow slot (7), the second bump (5) is engaged with the top end of the hollow slot (7), and the tank body (3) is respectively A water inlet pipe (8) and a water outlet pipe (9) are provided. The water inlet pipe (8) and the water outlet pipe (9) are symmetrically arranged on the pool body (3), and are respectively connected to the hollow body through a plurality of connecting holes arranged at intervals on the upper side. The groove (7) is communicated, and a first silicone gasket (10) with a central through hole is arranged between the pool bottom cover (2) and the pool body (3), and the central through hole is connected with the first bump (1) Fittingly, a second silicone gasket (11) with a central through hole is arranged between the pool body (3) and the pool top cover (6), and the central through hole is fitted with the second bump (5). , the electrode (4) comprises a cathode sodium manganese oxide electrode (12) and an anode activated carbon electrode (13), an insulating gasket (14) is placed between the cathode sodium manganese oxide electrode (12) and the anode activated carbon electrode (13) . 2 . The electrolytic cell for a hybrid capacitor for seawater desalination according to claim 1 , wherein the height ratio of the first bump ( 1 ) to the second bump ( 5 ) is 1:1. 3 . 3 . The electrolytic cell for seawater desalination hybrid capacitor according to claim 1 , wherein the height ratio of the first bump ( 1 ) to the pool bottom cover ( 2 ) and the pool body ( 3 ) is 1. 3 . :1.25~1.6: 2~2.8. 4 . The electrolytic cell for seawater desalination hybrid capacitor according to claim 1 , wherein the height ratio of the second bump ( 5 ) to the pool bottom cover ( 2 ) and the pool body ( 3 ) is 1. 5 . :1.25~1.6: 2~2.8.

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