CN206256187U - an electrolytic cell - Google Patents

Abstract

The utility model discloses an electrolytic cell experimental device, which comprises an electrolytic cell body, a hanging basket, a bath liquid circulating system, a heating system, a condensing system, a liquid level protection device and a liquid supplementing system; the electrolytic cell body and the hanging basket can be detached, and the hanging basket consists of a graphite plate and a bracket; the circulating system comprises a liquid inlet at the upper part and a liquid outlet at the center of the lower part, so that the uniform distribution of the electrolyte in the tank body is ensured; the heating and condensing system ensures the temperature balance of the electrolyte; the liquid level protection system can ensure the lowest liquid level in the tank body and prevent the circulating pump from idling and overloading; the liquid supplementing system comprises a metering pump, a flowmeter and the like, and is used for automatically extracting and supplementing the electrolyte so as to ensure the consistency of the concentration of the electrolyte.

Description

an electrolytic cell

technical field

The utility model relates to an electrolytic cell, which belongs to the technical field of electrolytic cells.

Background technique

The electrolytic cell is a special equipment for corrosion and electroplating of aluminum foil or copper foil. Because the foil is thin, it is easy to deform during the experiment, resulting in electrical corrosion or electroplating defects; foil corrosion and electroplating have high requirements on the circulation system of the electrolytic cell. At present, most of the simple electrolytic cells using glass containers use air stirring and other methods for mass transfer, which not only has potential safety hazards of container rupture, but also has dead angles in electrolyte circulation, resulting in quality problems such as uneven corrosion of foils and uneven thickness of electroplated samples. Seriously affected the accuracy of the experiment; in addition, in the conventional electrolytic cell experiment process, the electrolyte is taken and replenished manually, the operation is complicated, and the work efficiency is low.

Utility model content

In view of the existing technical problems, the purpose of the utility model is to provide an electrolytic cell which is easy to operate and can improve work efficiency and experiment accuracy.

In order to achieve the above object, the technical solution of the present invention provides an electrolytic cell, including an electrolytic cell body, a hanging basket, a foil splint, a heating system, a condensation system, a circulation system and a liquid replenishment system, an electrolytic cell body, a hanging basket and a foil splint The splints are independent of each other and can be disassembled and combined freely; the middle and upper positions of the end plates on both sides of the electrolytic cell body are respectively provided with a liquid inlet, and the center of the end plate at the bottom of the electrolytic cell body is provided with a liquid outlet; the hanging basket is placed on the side of the electrolytic cell above and connected through the cover plate; the heating rod and thermocouple in the heating system are directly inserted into the side plate or bottom of the electrolytic cell body; the cooling water pipe of the condenser in the condensation system is connected to the cooling water pipe in the electrolytic cell body; the circulating system circulates The two water pipes of the pump are respectively connected to the liquid inlet and the liquid outlet of the electrolytic cell body; the liquid replenishment system connects the liquid storage tank, the metering pump and the electrolytic cell body through the water pipes.

According to the electrolytic cell provided by the above technical solution, in some embodiments of the present invention, the hanging basket, the foil splint, the electrolytic cell body, the lining of the circulating pump, the lining of the metering pump, the liquid storage tank, the waste liquid tank, The water pipes are made of engineering plastics resistant to strong acids and alkalis.

According to the electrolytic cell provided by the above technical solution, in some embodiments of the present invention, the engineering plastics resistant to strong acid and strong alkali are selected from polytetrafluoroethylene, polyvinylidene fluoride, polypropylene, polyvinyl chloride, polyphenylene sulfide, Synthetic or polystyrene.

In some embodiments, the heating rod is a heating rod made of metal or other materials covered with a protective layer of high temperature and acid and alkali resistant materials; in other embodiments, the heating rod is an acid and alkali resistant quartz rod.

According to the electrolyzer provided by the above technical solution, the hanging basket is mainly composed of a graphite plate, a cover plate, a bracket and a side plate bracket, and the four devices are fixed together to form a hanging basket. The center of the cover plate is reserved with a foil splint jack . The side plate bracket is not completely closed to ensure the uniformity of the electrolytic bath between the plates. The design of the foil splint ensures that the foil will not be deformed by external force, and the shape is a central hollow structure to ensure the work of the foil. areas in direct contact with the electrolyte. In some embodiments of the present invention, the four devices are fixed together by bolts to form a hanging basket, wherein the material of the bolts is selected from acid and alkali resistant polypropylene or vinylidene fluoride, and the cover plate and graphite plate are both made of acid and alkali resistant bolts. fixed on the bracket; in other embodiments of the present utility model, the four devices are fixed into one body in the form of card slots.

According to the electrolytic cell provided by the above technical solution, the water pipe at the liquid inlet is a small-diameter water pipe, the number of water pipes on one side is ≥ 4, and the direction of each water pipe mouth is vertically downward, and a row can be placed on the middle and upper parts of the four walls of the electrolytic cell body. Liquid inlet, water pipe row number ≥ 2 rows.

According to the electrolytic cell provided by the above technical solution, a liquid level protection device is provided at a position higher than 1/4 of the cell body of the liquid outlet.

According to the electrolytic cell provided by the above technical solution, a cooling water pipe is wound in the middle of the electrolytic cell body, and the number of winding turns is ≥1.

The foil splint is made of two acid-alkali-resistant and high-temperature-resistant material plates. The foil splint is a hollow structure. After the metal foil is fixed by the two splints, the splint is inserted into the plate socket of the hanging basket.

The design of the circulation system is that the end plates on both sides of the electrolytic cell body are equipped with multiple electrolyte inlets, and the center of the bottom end plate is equipped with electrolyte outlets, which are synchronously divided into multiple electrolyte inlet pipes by a main pipe. The liquid inlet direction is vertically downward, and multiple electrolyte inlets are used to ensure the consistency of each inlet flow, which further improves the uniformity of the overall tank liquid circulation. The power of the circulation system is provided by the circulation pump, which can be realized by adjusting the frequency. Control over flow.

In some embodiments, a liquid level protection device is provided at the middle and lower part of the side of the tank. When the liquid level is lower than the limit liquid level, the system automatically cuts off the power supply of the circulating pump to prevent the circulating pump from being damaged due to idling overload.

In some embodiments, a cooling water pipe is provided in the middle of the tank body, and the water pipe is connected to a condenser to form a condensation system to cool down the tank liquid.

In some embodiments, the heating system is heated by a heating rod, and the heating rod can be located at the bottom of the tank or at the side of the tank.

In some embodiments, the liquid replenishment system consists of a liquid storage tank, a waste liquid tank, and two metering pumps. The four devices are connected by water pipes to keep the concentration of the bath liquid in the electrolytic cell body within a certain range, and the liquid replenishment The system and the tank body are connected by water pipes to supply and discharge the tank liquid in the tank body.

The heating system, condensing system, circulation system and liquid replenishment system are all intelligently controlled by the control panel to adjust the temperature of the bath liquid, control the circulation flow of the bath liquid and quantitatively replenish the bath liquid.

In some embodiments, a cooling water pipe is wound in the middle of the electrolyzer body, and the number of winding turns is ≥ 2 turns.

The utility model has simple operation in the experiment process, uses a reasonable circulation mode to reduce the experiment deviation, and the full-automatic constant temperature control and liquid replenishment system improves the work efficiency.

Description of drawings

Fig. 1 is the side view of the hanging basket of the utility model embodiment;

Fig. 2 is the top view of the hanging basket of the utility model embodiment;

Fig. 3 is a side view of the utility model electrolyzer body;

Fig. 4 is the top view of the utility model electrolyzer body;

Fig. 5 is the utility model foil splint schematic diagram;

Fig. 6 is a schematic diagram of the connection between the hanging basket and the foil splint in Embodiment 1 of the present invention;

Fig. 7 is a schematic diagram of the connection between the electrolytic cell body, the hanging basket and the foil splint in Embodiment 2 of the present invention;

Fig. 8 is a schematic diagram of an overview of the electrolysis system of Embodiment 3 of the present invention.

In the figure, 1 is the foil splint, 2 is the graphite plate, 3 is the cover plate, 4 is the bracket, 5 is the side plate bracket, 6 is the liquid inlet, 7 is the liquid outlet, 8 is the cooling water pipe, and 9 is the heating rod , 10 is a liquid level protection device, and 11 is a foil splint jack.

detailed description

The following examples are used to illustrate the utility model, rather than limit the protection of the utility model. It should be pointed out that for those skilled in the art, some modifications and improvements made on the basis of the inventive concept of this utility model all belong to the protection scope of the utility model.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Example 1

As shown in Figure 6, the hanging basket is composed of a graphite plate 2, a cover plate 3, a bracket 4 and a side plate bracket 5, and the hanging basket, the foil splint 1 and the electrolytic cell body can be freely separated from each other; the copper foil or aluminum foil sample According to the size requirements of the foil splint 1, cut it into a sample of an appropriate size, put the sample in the foil splint 1 and fix it, and then insert the foil splint 1 into the foil splint insertion hole 11 of the hanging basket.

Example 2

As shown in Figure 7, the design of the circulation system is that the end plates on both sides of the electrolytic cell body are respectively provided with multiple electrolyte inlets 6, which are synchronously divided into multiple electrolyte inlet pipes by a main pipeline, and the bottom center The electrolyte outlet 7 is set at the position; the power of the circulation system is provided by the circulation pump; a liquid level protection device 10 is provided at the middle and lower part of the side of the tank, and a cooling water pipe 8 is provided at the middle of the tank, and the water pipe is connected to the condenser , the heating system is heated by the heating rod 9, and the heating rod is located at the bottom of the tank.

Inject the electrolyte into the body of the electrolyzer, place the hanging basket on the body of the electrolyzer, and finally insert the foil splint with the aluminum foil or copper foil sample into the hole 11 of the foil splint of the hanging basket, open the circulation system, and condense System and so on for electrolysis experiments.

Example 3

As shown in Figure 8, the parameters of the circulation system, condensation system, automatic liquid replenishment system and heating system are set through the intelligent control panel, and the two poles of the power supply used in the experiment are respectively connected to the foil of the foil splint and the graphite plate according to the purpose of the experiment. On, turn on the power to carry out the electrolysis experiment.

Claims (10)

1. An electrolytic cell, comprising an electrolytic cell body, a hanging basket, a foil splint, a heating system, a condensation system, a circulation system and a liquid replenishment system, is characterized in that the electrolytic cell body, the hanging basket and the foil splint are independent of each other and can be freely Disassembly and assembly; the middle and upper positions of the end plates on both sides of the electrolytic cell body are respectively provided with a liquid inlet (6), and the center of the end plate at the bottom of the electrolytic cell body is provided with a liquid outlet (7); the hanging basket is located at the bottom of the electrolytic cell body above and connected through the cover plate (3); the heating rod (9) and thermocouple in the heating system are directly inserted into the side plate or bottom of the electrolytic cell body; the cooling water pipe of the condenser in the condensing system is connected to the cooling pipe in the electrolytic cell body Water pipe (8); the two water pipes of the circulation pump in the circulation system are respectively connected to the liquid inlet (6) and the liquid outlet (7) of the electrolytic cell body; the liquid replenishment system connects the liquid storage tank, the metering pump and the electrolytic cell body connection between. 2. The electrolytic cell according to claim 1, characterized in that, the hanging basket, the foil splint, the electrolytic cell body, the lining of the circulating pump, the lining of the metering pump, the liquid storage tank, the waste liquid tank, and the heating rod The material of the jacket and the water pipe is engineering plastics resistant to strong acid and strong alkali. 3. The electrolytic cell according to claim 2, characterized in that, the engineering plastics resistant to strong acid and strong alkali are selected from polytetrafluoroethylene, polyvinylidene fluoride, polypropylene, polyvinyl chloride, polyphenylene sulfide, Synthetic or polystyrene. 4. The electrolytic cell according to claim 1, characterized in that, the hanging basket is mainly composed of graphite plate (2), cover plate (3), support (4) and side plate support (5), four The devices are fixed together to form a hanging basket; a splint socket (11) is reserved at the center of the cover plate (3). 5. The electrolytic cell according to claim 4, characterized in that, the four devices are fixed by means of slots or bolts. 6. The electrolytic cell according to claim 1, characterized in that, the foil splint (1) is a hollow structure, consisting of two front and rear plates, wherein the foil splint (1) is located on the foil splint of the hanging basket into the socket (11). 7. The electrolytic cell according to claim 1, characterized in that, the water pipe of the liquid inlet (6) is a small-diameter water pipe, the number of water pipes on one side is ≥ 4, and the direction of each water pipe mouth is vertically downward. A row of liquid inlets can be placed on the middle and upper parts of the four walls of the tank body, and the number of water pipe rows is ≥ 2 rows. 8. The electrolytic cell according to claim 1, characterized in that a liquid level protection device (10) is provided at a position higher than 1/4 of the cell body of the liquid outlet (7). 9. The electrolytic cell according to claim 1, characterized in that a cooling water pipe (8) is wound in the middle of the electrolytic cell body, and the number of winding turns is ≥ 1. 10. The electrolytic cell according to claim 1, characterized in that, the heating system, condensation system, circulation system and liquid replenishment system are all intelligently controlled by the control panel.