CN201655559U - Thermal Energy Recycling Device for Electrode Foil Formation Equipment - Google Patents

Abstract

The utility model discloses a thermal energy recycling device for electrode foil forming equipment. On the basis of the heat exchange of the original chemical formation circulation system, a first-stage tank liquid heat exchange is added, and a first-stage heat exchanger and pipelines are added to the treatment tank circulation system. , by adjusting the valve, and then use the solenoid valve to control the temperature. The tank liquid adopts a secondary heat exchange system, which can not only achieve the disadvantage of insufficient primary cooling, but also use circulating water as a cooling medium, and reverse osmosis water or mixed bed water as another set of circulating cooling medium. The hot water at 70~75℃ is extracted, and the hot water is used to insulate the treatment tank and heat the factory in winter, so that the energy is reused and resources are saved.

Description

Thermal Energy Recycling Device for Electrode Foil Formation Equipment

technical field

The utility model relates to the field of circulating cooling systems for electrode foil forming equipment, in particular to a thermal energy recycling device for electrode foil forming equipment.

Background technique

Electrode foil is the main raw material of aluminum electrolytic capacitors and is used to manufacture anodes and cathodes of aluminum electrolytic capacitors. The anode aluminum foil (forming foil) and cathode aluminum foil of aluminum electrolytic capacitors are made of aluminum raw materials through multiple processes. During the formation of the electrode foil, an oxide film of aluminum oxide is formed on the surface of the corroded aluminum foil through an electrochemical reaction. The oxide film acts as a medium in the capacitor, and a large amount of heat will be generated during the formation process. For temperature control, see Figure 1 for the method used before.

When controlling the temperature of the chemical tank solution: the technical requirement for the tank solution temperature is generally 85±4°C. The original system used the circulation pump 11 to extract the tank solution from the chemical tank 1, and sent it to the heat exchanger 12 through the tank tube 3 for heat exchange. One side of the device 12 has been passing heat to the bath liquid, and the other side is to pass circulating water when the water pipe 5 is opened according to the circulating water solenoid valve 13, and the heat of the bath liquid is taken away by the circulating water, and the circulating water is formed when the temperature of the tank 1 is higher than the set temperature The solenoid valve 13 is opened, and the circulating water takes away the heat of the forming bath liquid through the heat exchanger 12. When the temperature of the forming tank 1 is lower than the set temperature, the circulating water solenoid valve 13 is closed, and no circulating water enters the heat exchanger 12, and the forming Because the aluminum foil performs an electrochemical reaction in the tank to release heat, the bath solution gradually rises to the set temperature, and continues to circulate in this way, ensuring that the temperature of the bath solution fluctuates within the range required by the process. Sometimes the temperature of the bath liquid is too high, and the cooling of the first-stage heat exchanger cannot meet the requirements. If the temperature cannot be lowered to the specified condition, it is passed into the formation tank again, which leads to the failure of cooling. In addition, the temperature of circulating hot water is generally around 40°C, and a large amount of heat is lost through the cooling tower, which cannot be used rationally and a lot of resources are wasted.

At the same time, the temperature of the treatment tank 2 in the chemical conversion equipment is generally below 70°C. In order to maintain the temperature of the bath solution required by the process, the original temperature control of the treatment tank 2 adopts steam heating or electric heating device 4 to heat the treatment tank 2, and the temperature of the treatment tank 2 When the temperature is lower than the set temperature, the steam heating or electric heating device 4 heats, and when the temperature is higher than the setting temperature, the steam heating or electric heating device 4 stops heating to ensure that the temperature of the liquid in the treatment tank 2 is within the range of process requirements. Such heating is necessary to consume resources, thereby wasting energy.

Utility model content

The purpose of the utility model is to overcome the deficiency that the temperature reduction of the first-stage heat exchange system in the prior art cannot meet the requirements, and provide a thermal energy recycling device for electrode foil formation equipment that can meet the temperature reduction requirements with a simple structure and is easy to implement.

Another purpose of the utility model is to overcome the shortage of a large amount of waste of circulating cooling hot water resources in the prior art, and provide a method that utilizes circulating cooling hot water for heat preservation of the treatment tank in the assimilation equipment and heating of the factory in winter, and the energy is obtained The thermal energy recycling device of the reused electrode foil forming equipment.

Another purpose of the utility model is to overcome the shortage of additional heating and waste of resources in the prior art treatment tanks in order to maintain the temperature of the tank solution required by the process, and to provide a method that uses circulating cooling hot water for heat preservation and rational use of energy. , Environmentally friendly and resource-saving electrode foil forming equipment thermal energy recycling device. ,

In order to achieve the above purpose, the utility model is realized through the following technical solutions: a thermal energy recycling device for electrode foil formation equipment, including a formation tank, a treatment tank, a circulation pump, a heat exchanger, a solenoid valve, a bath liquid pipe and a water pipe, The tank is connected to the circulation pump 1 through the bath liquid pipe, and the circulation pump is connected back to the formation tank through the bath liquid pipe again. The bath liquid pipe is provided with a heat exchanger, and a water pipe is connected to the heat exchanger, and a solenoid valve is arranged on the water pipe; The treatment tank is connected to the circulation pump 2 through the bath liquid pipe, and the circulation pump 2 is connected back to the treatment tank through the bath liquid pipe. The first-stage heat exchanger is also provided with a water pipe, and the inlet end of the water pipe is provided with a first-stage solenoid valve, and the second-stage heat exchanger is also provided with a water pipe, and the inlet end of the water pipe is provided with a water pipe. A secondary solenoid valve is arranged, and a water stop valve is arranged on the outlet end;

A three-stage heat exchanger is installed on the tank liquid pipe connecting the second connection of the circulating pump back to the treatment tank section, and a water pipe is also connected to the third-stage heat exchanger, and the inlet end of the water pipe is connected to the water pipe on the second-stage heat exchanger On the outlet end before the water stop valve on the top; on the inlet end of the water pipe on the three-stage heat exchanger, a three-stage solenoid valve is arranged.

On the basis of the heat exchange of the original chemical formation circulation system, a first-stage tank liquid heat exchange is added, and a first-stage heat exchanger and pipeline are added to the treatment tank circulation system, and the temperature is controlled by a solenoid valve by adjusting the valve.

When controlling the temperature of the formation bath, the temperature of the bath is required to be 85±4°C. When the temperature of the bath rises to 86°C, the circulating reverse osmosis or mixed-bed water return secondary solenoid valve is opened to cool down the formation bath. At the same time, the circulating reverse osmosis or mixed bed product water is heated up through the additional secondary heat exchanger, and the hot water is output. The temperature can reach 70~75°C. When the temperature is lower than 81°C, the circulating reverse osmosis or mixed bed product water The secondary solenoid valve of the return water is automatically closed, and the temperature is raised by the electrochemical reaction of the bath liquid. When the temperature of individual baths rises to 89°C, the first-stage solenoid valve for circulating water is opened to strengthen cooling. When the temperature is lower than 86°C, the first-stage solenoid valve for circulating cold water is closed to ensure that the temperature of the forming bath is within the range required by the process.

A three-stage heat exchanger is added to the circulation pipeline of the treatment tank. When the temperature of the bath liquid is lower than the temperature required by the process of the treatment bath liquid, the three-stage solenoid valve for heating the treatment tank is opened to raise the temperature of the treatment tank. When the temperature is higher than the temperature required by the process , The three-stage solenoid valve is automatically closed to achieve the purpose that the temperature of the treatment tank is within the range required by the process.

The hot water output from the secondary heat exchanger can not only provide the heat source for the heat preservation of the treatment bath liquid, but also provide high-temperature hot water for the heating of the factory in winter. As long as it is connected to the heating circulation system, the purpose of using the chemical heat energy to provide heating for the factory can be achieved. , Save the cost of heating coal in winter.

As a preference, the inlet and outlet ends of the water pipes on the three-stage heat exchanger are sequentially connected to the outlet ends of the water pipes on the secondary heat exchanger, and the water pipe section of the secondary heat exchanger between the two ends Install a water stop valve.

Under the condition that the temperature of the chemical formation tank needs to be lowered and the secondary solenoid valve is opened, when the temperature of the treatment tank needs to be raised, the water stop valve is closed, the third-stage solenoid valve is opened, and the heated reverse osmosis or mixed bed produced water in the secondary heat exchanger returns to The water flows into the three-stage heat exchanger to raise the temperature of the treatment tank liquid. When it is not necessary to heat up, close the three-stage solenoid valve and open the water stop valve.

Preferably, the water flow in and out of the water pipes on the secondary heat exchanger is in the opposite direction to the water flow in and out of the water pipes on the primary heat exchanger.

Preferably, the flow in and out of the water pipes on the secondary heat exchanger is in the same direction as the water flow in and out of the water pipes on the primary heat exchanger.

Beneficial effects of the utility model: on the basis of the heat exchange of the original chemical formation circulation system, a first-level tank liquid heat exchange is added, and a first-level heat exchanger and pipeline are added to the treatment tank circulation system. By adjusting the valve, and then using the solenoid valve temperature control. The tank liquid adopts a secondary heat exchange system, which can not only achieve the disadvantage of insufficient cooling at the first level, but also use circulating water as a cooling medium and reverse osmosis water or mixed bed water as another set of circulating cooling medium. The hot water at 70~75℃ is extracted, and the hot water is used to insulate the treatment tank and heat the factory in winter, so that the energy is reused and resources are saved.

Description of drawings

Fig. 1 is the structural representation of prior art chemical formation equipment;

Fig. 2 is a structural schematic diagram of the utility model.

Detailed ways

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

Embodiment 1: As shown in Figure 2, a thermal energy recycling device for electrode foil formation equipment, including a formation tank 1, a treatment tank 2, a circulation pump, a heat exchanger, a solenoid valve, a tank liquid pipe 3 and a water pipe 5, and a formation tank 1 is connected to the circulation pump 11 through the bath liquid pipe 3, and the circulation pump 11 is connected back to the formation tank 1 through the bath liquid pipe 3. The bath liquid pipe 3 is provided with a heat exchanger, and a water pipe 5 is also connected to the heat exchanger , a solenoid valve is arranged on the water pipe 5 . The treatment tank 2 is connected to the circulation pump 2 21 through the bath liquid pipe 3, and the circulation pump 2 21 is connected back to the treatment tank 2 through the bath liquid pipe 3,

In order to strengthen the cooling, on the basis of the heat exchange of the original chemical formation circulation system, a first-stage tank liquid heat exchange is added, and the first-stage heat exchanger 12 and the second-stage heat exchanger 12 are sequentially arranged on the bath liquid pipe 3 connected to the first section of the chemical formation tank by circulating pump one 11 The first-stage heat exchanger 14, the first-stage heat exchanger 12 is also provided with a water pipe 5, the inlet end of the water pipe 5 is arranged with a first-stage solenoid valve 13, and the second-stage heat exchanger 14 is also provided with a water pipe 5, the water pipe A secondary solenoid valve 13 is arranged on the inlet end of 5, and a water stop valve 4 is arranged on the outlet end. The water flow in and out of the water pipe 5 on the secondary heat exchanger 14 is opposite to the water flow in and out of the water pipe 5 on the primary heat exchanger 12 .

In order to save resources and save production costs, utilize the hot water treatment bath solution output in the secondary heat exchanger to keep warm, and a third-stage heat exchanger 22 is provided on the bath liquid pipe 3 connected back to the second section of the treatment tank at the circulating pump 221, The third-stage heat exchanger 22 is also provided with a water pipe 5, and the inlet end of the water pipe 5 is connected to the outlet end before the water stop valve 4 on the water pipe 5 on the secondary heat exchanger 14; the third-stage heat exchanger 22 A three-stage solenoid valve 23 is arranged on the inlet end of the upper water pipe 5 .

Embodiment 2: As shown in Figure 2, the two ends of the inlet and outlet of the water pipe 5 on the three-stage heat exchanger 22 are sequentially connected to the outlet end of the water pipe 5 on the two-stage heat exchanger 14, between the two ends A water stop valve 4 is set on the water pipe section 5 of the secondary heat exchanger 14. All the other are with embodiment 1.

Embodiment 3: The water flow in and out of the water pipe 5 on the secondary heat exchanger 14 is in the same direction as the water flow in and out of the water pipe 5 on the primary heat exchanger 12 . All the other are with embodiment 2.

In use: When controlling the temperature of the chemical tank solution, the temperature of the tank solution is required to be 85±4°C. When the temperature of the tank solution rises to 86 °C, the secondary solenoid valve of the circulating reverse osmosis or mixed bed product water return water is opened for the chemical conversion process. The temperature of the bath liquid is cooled, and at the same time, the circulating reverse osmosis or mixed bed product water is heated up through the additional secondary heat exchanger, and the hot water is output. The temperature can reach 70~75°C. When the temperature is lower than 81°C The secondary solenoid valve of bed produced water and return water is automatically closed, and the temperature is raised by the electrochemical reaction of the bath liquid. When the temperature of individual baths rises to 89°C, the first-stage solenoid valve for circulating water is opened to strengthen cooling. When the temperature is lower than 86°C, the first-stage solenoid valve for circulating cold water is closed to ensure that the temperature of the forming bath is within the range required by the process.

Under the condition that the chemical formation tank needs to cool down and open the secondary solenoid valve, the temperature of the treatment tank in the chemical conversion equipment is generally below 70°C. In order to maintain the temperature of the bath liquid required by the process, when the temperature of the treatment tank needs to be raised, the water stop valve is closed, and the third The electromagnetic valve is opened, and the heated reverse osmosis or mixed-bed return water in the secondary heat exchanger flows into the tertiary heat exchanger to raise the temperature of the treatment tank liquid. When it is not necessary to heat up, close the three-stage solenoid valve and open the water stop valve.

Claims (2)

1. A thermal energy recycling device for electrode foil formation equipment, including a formation tank, a treatment tank, a circulation pump, a heat exchanger, a solenoid valve, a tank liquid pipe and a water pipe, and the formation tank is connected to the circulation pump one through the tank liquid pipe, and the circulation pump is repeated It is connected back to the formation tank through the tank liquid pipe, and the tank liquid pipe is provided with a heat exchanger, and a water pipe is also connected to the heat exchanger, and a solenoid valve is arranged on the water pipe; the treatment tank is connected to the circulation pump 2 through the bath liquid pipe, and the circulation pump The second is to connect back to the treatment tank through the tank liquid pipe, which is characterized in that a first-stage heat exchanger (12) is sequentially arranged on the tank liquid pipe (3) of the circulation pump one (11) connected to the formation tank (1) section ) and the secondary heat exchanger (14), the primary heat exchanger (12) is also provided with a water pipe (5), the inlet end of the water pipe (5) is arranged with a primary solenoid valve (13), and the secondary heat exchanger A water pipe (5) is also provided on the heater (14), and a secondary solenoid valve (13) is arranged on the inlet end of the water pipe (5), and a water stop valve (4) is arranged on the outlet end; A three-stage heat exchanger (22) is arranged on the tank liquid pipe (3) that is connected back to the treatment tank (2) section in the circulation pump two (21), and a water pipe (22) is also connected on the three-stage heat exchanger (22). 5), the inlet end of the water pipe (5) is connected to the outlet end before the water stop valve (4) on the water pipe (5) on the secondary heat exchanger (14); A three-stage electromagnetic valve (23) is arranged on the inlet end of the water pipe (5). 2. The thermal energy recycling device for electrode foil formation equipment according to claim 1, characterized in that, the inlet and outlet ends of the water pipe (5) on the three-stage heat exchanger (22) are sequentially connected to the two-stage heat exchanger. On the outlet end of the water pipe (5) on the heater (14), a water stop valve (4) is set on the water pipe (5) section of the secondary heat exchanger (14) between the two ends.

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