CN111962097A - Baffling type sodium hypochlorite generator electrolytic tank - Google Patents
Baffling type sodium hypochlorite generator electrolytic tank Download PDFInfo
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- CN111962097A CN111962097A CN202010870873.3A CN202010870873A CN111962097A CN 111962097 A CN111962097 A CN 111962097A CN 202010870873 A CN202010870873 A CN 202010870873A CN 111962097 A CN111962097 A CN 111962097A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
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Abstract
The invention discloses a baffling type sodium hypochlorite generator electrolytic tank. An upper anode, an upper rubber gasket, a cathode, a lower rubber gasket and a lower anode are sequentially arranged in an insulated electrolytic tank consisting of an upper tank body and a lower tank body from top to bottom; the anode is fixed at the grooves at the inner sides of the upper and lower tank bodies through nylon screws, the cathode is pressed and fixed through the upper and lower tank bodies, and the cathode and the anode are connected with a direct current power supply; the adjacent electrodes and the rubber gasket form an electrolytic reaction chamber, an electrolytic unit is formed by the electrolytic reaction chamber and electrolyte in the chamber, a narrow slit is arranged on the right side of the cathode, and the front electrolytic unit and the rear electrolytic unit are connected to form baffling. The invention has narrow electrode spacing, less heat release in the electrolytic process, effective control of the temperature of the electrolytic cell without adding a heat exchange piece and avoidance of the pyrolysis of sodium hypochlorite products; the process is long, and the baffled structure can fully electrolyze the salt solution, reduce the salt consumption, effectively improve the chlorine production efficiency and reduce the volume of the electrolytic tank. The invention is suitable for the disinfection link of rural drinking water engineering.
Description
Technical Field
The invention relates to a sodium hypochlorite generator electrolytic tank, in particular to a baffling type sodium hypochlorite generator electrolytic tank suitable for drinking water disinfection projects in rural areas.
Technical Field
The disinfection is a weak link in drinking water engineering in rural areas in China and is the final guarantee of drinking water safety. The sodium hypochlorite is used as a strong oxidant and a disinfectant, can be prepared by electrolyzing saline solution on site by using a sodium hypochlorite generator, is easy to purchase raw materials, has low cost and high safety, and is suitable for drinking water engineering in rural areas.
The electrolytic bath is the core of the sodium hypochlorite generator, and the structural design of the electrolytic bath directly influences the performance of the sodium hypochlorite generator. Traditional hypochlorite generator electrolysis trough mainly has two aspects problem: 1. the single-channel direct-current structure has short flow and low efficiency. 2. The distance between the cathode plate and the anode plate of the electrolytic cell is larger, the voltage is higher during electrolysis, and the energy consumption is larger. Meanwhile, the electrolysis reaction is a heat release process, a large amount of heat is generated along with the electrolysis, the temperature of the electrolytic bath is increased, and sodium hypochlorite products are decomposed. The defects seriously affect the popularization and the application of the sodium hypochlorite generator in the field of rural drinking water disinfection.
The granted patent (ZL201120308440.5) introduces a tubular electrolytic cell, but the tubular structure electrode has production and installation errors, larger plate spacing and serious heat generation in the electrolytic process; meanwhile, the horizontal installation causes the generated hydrogen to be discharged to the upper part of the electrolytic cell, the gas is difficult to discharge, the voltage is increased, and the energy consumption is increased. The publication number is CN109778219A, an electrolytic cell component of a sodium hypochlorite generator is introduced, the traditional sodium hypochlorite generator is optimized, the problem of heating in the electrolytic process is solved by additionally arranging a heat exchange piece, and the problems of complex structure, complex installation and disassembly and the like of the electrolytic cell are also caused.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a baffling type sodium hypochlorite generator electrolytic tank which is small in size, low in energy consumption, high in chlorine yield and capable of effectively controlling the temperature of the electrolytic tank, and is used for a disinfection link of rural drinking water engineering.
The technical scheme adopted by the invention is as follows:
the electrolytic cell of the invention is composed of: an insulating tank body consisting of an upper tank body and a lower tank body;
the lower end face of the upper tank body is sequentially provided with stepped square grooves from bottom to top, the bottom of the inner groove is provided with an upper anode, the outer groove is provided with an upper rubber gasket, the upper end face of the lower tank body is sequentially provided with stepped square grooves from top to bottom, the bottom of the inner groove is provided with a lower anode, and the outer groove is provided with a lower rubber gasket; a cathode is arranged between the upper rubber gasket and the lower rubber gasket and forms detachable sealing connection through fastening screws on the periphery;
a liquid outlet is arranged on the left side of the upper tank body, a liquid inlet is arranged on the left side of the lower tank body, anode conductive assemblies with the same structure are respectively arranged on the upper and the lower sides of the right electrolytic tank and are connected with respective upper anodes and lower anodes by direct current power supplies, and a cathode conductive assembly is arranged on the right electrolytic tank and is connected with the direct current power supplies;
the upper anode, the cathode and the upper rubber gasket enclose an upper electrolysis cavity, the upper electrolysis unit is formed by the upper anode, the cathode and the electrolytic solution in the upper electrolysis cavity, the lower electrolysis cavity is formed by the lower anode, the cathode and the lower rubber gasket, the lower electrolysis unit is formed by the lower electrolysis unit and the electrolytic solution in the lower electrolysis cavity, and the right side of the cathode plate is provided with a narrow slit which is used for communicating the upper electrolysis unit and the lower electrolysis unit.
The anode conductive components with the same structure all comprise: the cross special-shaped stud, the conductive gasket, the conductive nut, the silver colloid, the sealing ring and the fastening nut are arranged in corresponding slotted holes of the upper and lower groove bodies; the conductive nuts are welded on the respective upper anode and the lower anode; and the silver colloid is respectively filled in the gaps between the conductive nut and the respective upper groove body and the lower groove body.
The cathode conductive assembly includes: the cathode conductive stud, the right conductive nut and the right fastening nut are arranged in the corresponding slotted hole of the lower trough body and are in contact with the cathode.
The liquid inlet is arranged on the left side of the lower groove body and is connected with the liquid inlet hole of the lower anode.
And the liquid discharge port is arranged on the left side of the upper groove body and is connected with the upper anode liquid outlet hole.
The upper anode and the lower anode are DSA chlorine-separating anodes, and the upper anode and the lower anode are respectively fixed at the bottom of the groove in the upper groove body and the bottom of the groove in the lower groove body through nylon screws.
The invention has the beneficial effects that:
1) the distance between the electrodes is narrow, the anode is fixed through the nylon nut, and the distance between the anode and the cathode is ensured to be in the range of 1-3 mm, so that the voltage in the electrolysis process is effectively reduced, and the energy consumption is further reduced; on the other hand, the heat release in the electrolytic process is less, the temperature of the electrolytic cell can be effectively controlled without adding a heat exchange piece, and the pyrolysis of a sodium hypochlorite product is avoided.
2) The process is long, and the electrolysis reaction process is lengthened through the baffled structure, so that the salt solution can be fully electrolyzed, on one hand, the salt consumption is reduced, and the chlorine production efficiency is effectively improved; on the other hand, the volume of the electrolytic tank is reduced while the effective area of electrolysis is ensured to be certain, and the invention is suitable for the disinfection link of rural drinking water engineering.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic structural view of a cathode;
FIG. 5 is a schematic view of the structure of the lower anode;
fig. 6 is a schematic view of the structure of the upper anode.
In the figure: 1. liquid discharge port, 2, fastening screw, 3, upper tank body, 4, upper anode, 5, nylon screw, 6, conductive gasket, 7, cathode conductive stud, 8, liquid inlet, 9, lower rubber gasket, 10, cathode, 11, lower tank body, 12, lower anode, 13, conductive nut, 14, silver colloid, 15, sealing ring, 16, cross-shaped special-shaped stud, 17, lower electrolysis cavity, 18, upper electrolysis cavity, 19, narrow slit, 20, fastening nut, 21, right conductive nut, 22, anode liquid inlet hole, 23, anode liquid outlet hole, 24, cathode opening hole, 25, upper rubber gasket, 26 and right fastening nut.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in figures 1, 3 and 4, the electrolytic bath of the invention is an insulating bath body consisting of an upper bath body 3 and a lower bath body 11;
the lower end face of the upper tank body 3 is sequentially provided with stepped square grooves from bottom to top, the bottom of the inner groove is provided with an upper anode 4, the outer groove is provided with an upper rubber gasket 25, the upper end face of the lower tank body 11 is sequentially provided with stepped square grooves from top to bottom, the bottom of the inner groove is provided with a lower anode 12, and the outer groove is provided with a lower rubber gasket 9; a cathode 10 is arranged between the upper rubber gasket 25 and the lower rubber gasket 9 and is in detachable sealing connection through the fastening screws 2 on the periphery, and the upper tank body 3 and the lower tank body 11 are made of organic glass plates;
a liquid outlet 1 is arranged on the left side of the upper tank body 3, a liquid inlet 8 is arranged on the left side of the lower tank body 11, anode conductive components with the same structure are respectively arranged on the upper and the lower parts of the right electrolytic tank and are connected with a direct current power supply respectively through an upper anode 4 and a lower anode 12, and a cathode conductive component is arranged on the right electrolytic tank and is connected with the direct current power supply;
an upper electrolytic cavity 18 is defined by the upper anode 4, the cathode 10 and the upper rubber gasket 25, an upper electrolytic unit is formed by the upper electrolytic cavity 18 and the electrolytic solution in the upper electrolytic cavity 18, a lower electrolytic cavity 17 is defined by the lower anode 12, the cathode 10 and the lower rubber gasket 9, a lower electrolytic unit is formed by the lower electrolytic cavity 17 and the electrolytic solution in the lower electrolytic cavity 17, a narrow slit 19 is arranged on the right side of the cathode plate, the upper electrolytic unit and the lower electrolytic unit are communicated, and the electrolyte flows into the upper electrolytic cavity 18 from the lower electrolytic cavity 17 through the narrow slit 19 to form baffling.
As shown in fig. 1 and 2, the anode conductive assemblies with the same structure each include: the device comprises a cross-shaped special-shaped stud 16, a conductive gasket 6, a conductive nut 13, silver colloid 14, a sealing ring 15 and a fastening nut 20, wherein the cross-shaped special-shaped stud 16 and the sealing ring 15 are arranged in corresponding slotted holes of an upper slot body and a lower slot body; conductive nuts 13 are welded to the respective upper and lower anodes 4 and 12; and the silver colloid 14 is respectively filled in the gaps between the conductive nut 13 and the respective upper slot body 3 and lower slot body 11.
As shown in fig. 1, the cathode conductive assembly includes: the cathode conductive stud 7, the right conductive nut 21 and the right fastening nut 26, wherein the right conductive nut 21 is arranged in a corresponding slot hole of the lower slot body 11 and is in contact with the cathode 10; the right side of the cathode 10 is convex, and a cathode opening 24 is arranged at the protruding position and is connected with the right conductive nut 21 and the cathode conductive stud 7.
As shown in fig. 1 and 5, the liquid inlet 8 is arranged on the left side of the lower tank body 3 and is connected with the lower anode liquid inlet hole 22.
As shown in fig. 1 and 6, the liquid outlet 1 is arranged on the left side of the upper tank body 3, is connected with the upper anode liquid outlet hole 23, and is positioned near the top edge of the upper electrolysis chamber 18.
As shown in fig. 1 and 2, the upper anode 4 and the lower anode 12 are DSA chlorine evolution anodes, the upper anode 4 and the lower anode 12 are respectively fixed at the bottom of the groove in the upper tank 3 and the bottom of the groove in the lower tank 11 by nylon screws 5, and the nylon screws 5 are simultaneously used as the inter-anode isolation support points to ensure that the inter-electrode distance is 1-3 mm.
The specific electrolytic process of the invention is as follows:
during electrolysis, dilute brine enters the lower electrolysis chamber 17 from the liquid inlet 8, the upper anode 10 and the lower anode 12 are connected with the positive pole of a direct current power supply through an anode conductive component, and the cathode 10 is connected with the negative pole of the direct current power supply through a cathode conductive component; after the electricity is supplied, sodium chloride in the dilute brine is ionized with water, hydrogen is generated on the surface of a cathode, a large amount of chlorine is generated on the surface of an anode, and the residual OH-With Na+Combined to form NaOH, Cl2Contacting with NaOH solution to obtain target products NaCIO and NaCI. After being electrolyzed in the lower electrolysis chamber 17, the salt solution flows into the upper electrolysis chamber 18 from the narrow slit 19 at the right side of the cathode 10, and after full reaction, the obtained electrolyte containing sodium hypochlorite is discharged from the liquid outlet 1.
Claims (6)
1. Baffling formula sodium hypochlorite generator electrolysis trough, its characterized in that, this electrolysis trough is by: an insulating groove body consisting of an upper groove body (3) and a lower groove body (11);
the lower end face of the upper tank body (3) is sequentially provided with stepped square grooves from bottom to top, the bottom of the inner groove is provided with an upper anode (4), the outer groove is provided with an upper rubber gasket (25), the upper end face of the lower tank body (11) is sequentially provided with stepped square grooves from top to bottom, the bottom of the inner groove is provided with a lower anode (12), and the outer groove is provided with a lower rubber gasket (9); a cathode (10) is arranged between the upper rubber gasket (25) and the lower rubber gasket (9) and forms detachable sealing connection through the fastening screws (2) on the periphery;
a liquid outlet (1) is arranged on the left side of the upper tank body (3), a liquid inlet (8) is arranged on the left side of the lower tank body (11), anode conductive components with the same structure are respectively arranged on the upper part and the lower part of the right electrolytic tank and are connected with an upper anode (4) and a lower anode (12) respectively through a direct current power supply, and a cathode conductive component is arranged on the right electrolytic tank and is connected with the direct current power supply;
an upper electrolytic cavity (18) is defined by the upper anode (4), the cathode (10) and the upper rubber gasket (25), an upper electrolytic unit is formed by the upper electrolytic cavity and an electrolytic solution in the upper electrolytic cavity (18), a lower electrolytic cavity (17) is defined by the lower anode (12), the cathode (10) and the lower rubber gasket (9), a lower electrolytic unit is formed by the lower electrolytic cavity and an electrolytic solution in the lower electrolytic cavity (17), and a narrow slit (19) is arranged on the right side of the cathode plate to communicate the upper electrolytic unit and the lower electrolytic unit.
2. The baffled hypochlorite generator cell of claim 1, wherein the structurally identical anode conductive elements each comprise: the device comprises a cross-shaped special-shaped stud (16), a conductive gasket (6), a conductive nut (13), silver colloid (14), a sealing ring (15) and a fastening nut (20), wherein the cross-shaped special-shaped stud (16) and the sealing ring (15) are arranged in corresponding slotted holes of an upper slot body and a lower slot body; the conductive nuts (13) are welded on the respective upper anode (4) and the lower anode (12); silver colloid (14) is respectively filled in gaps between the conductive nut (13) and the upper groove body (3) and the lower groove body (11) respectively.
3. The baffled hypochlorite generator cell of claim 1, wherein the cathodic conductive assembly comprises: the cathode conductive stud (7), the right conductive nut (21) and the right fastening nut (26), wherein the right conductive nut (21) is arranged in the corresponding slot hole of the lower slot body (11) and is in contact with the cathode (10).
4. The baffled hypochlorite generator cell of claim 1, wherein: the liquid inlet (8) is arranged on the left side of the lower groove body (3) and is connected with the lower anode liquid inlet hole (22).
5. The baffled hypochlorite generator cell of claim 1, wherein: the liquid discharge port (1) is arranged on the left side of the upper groove body (3), is connected with the upper anode liquid outlet hole (23), and is close to the top edge of the upper electrolysis cavity (18).
6. The baffled hypochlorite generator cell of claim 1, wherein: the upper anode (4) and the lower anode (12) are DSA chlorine-separating anodes, and the upper anode (4) and the lower anode (12) are respectively fixed at the bottom of the groove in the upper tank body (3) and the bottom of the groove in the lower tank body (11) through nylon screws (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870873.3A CN111962097A (en) | 2020-08-26 | 2020-08-26 | Baffling type sodium hypochlorite generator electrolytic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870873.3A CN111962097A (en) | 2020-08-26 | 2020-08-26 | Baffling type sodium hypochlorite generator electrolytic tank |
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| Publication Number | Publication Date |
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| CN111962097A true CN111962097A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010870873.3A Pending CN111962097A (en) | 2020-08-26 | 2020-08-26 | Baffling type sodium hypochlorite generator electrolytic tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463116A (en) * | 2021-07-14 | 2021-10-01 | 浙江大学 | Multi-deflection induction type sodium hypochlorite generator |
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2020
- 2020-08-26 CN CN202010870873.3A patent/CN111962097A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463116A (en) * | 2021-07-14 | 2021-10-01 | 浙江大学 | Multi-deflection induction type sodium hypochlorite generator |
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