Preheating device for adding bath solution

Abstract

The utility model relates to the technical field of medium conveying, in particular to an added tank liquid preheating device which comprises a tank body and a pipeline, high-temperature liquid is stored in the tank body, the two ends of the pipeline are connected with a liquid inlet and an inlet of a three-way valve respectively, and the liquid inlet and the three-way valve are both located outside the tank body. And part of the pipeline positioned in the tank body is repeatedly wound to form a wave-shaped structure and is immersed in the high-temperature liquid. Compared with a traditional method, the technical scheme has the advantages that in the corrosion production process, the tank liquid is preheated before entering the reaction tank, so that the temperature of the tank liquid is increased to the preset temperature, and the temperature of the tank liquid in the reaction tank is consistent with that of the tank liquid which is not added into the reaction tank; the stability of corrosion reaction is improved, the product quality is improved, the energy consumption is reduced, and the production efficiency can be released.

Description

Technical Field

[0001] The utility model relates to the technical field of medium transportation, and particularly relates to a tank liquid preheating device for addition. Background Art

[0002] In the process of corrosion production, adding tank liquid into the reaction tank is a crucial link. The tank liquid, also known as the corrosion medium, can be mainly divided into the following categories: acid solution, alkali solution, other chemical reagents, and water.

[0003] The traditional way of adding tank liquid is to directly add it into the reaction tank. When the temperature of the tank liquid to be added is different from that of the solution already existing in the reaction tank, this way may lead to uneven temperature, affecting the stability of the corrosion reaction and the product quality. At the same time, the low-temperature tank liquid may also cause an increase in the energy consumption of the production line and reduce the production efficiency. Summary of the Invention

[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a tank liquid preheating device for addition, which solves a series of problems such as uneven temperature caused by temperature difference, affected stability of the corrosion reaction, and increased energy consumption of the production line in the current corrosion production process.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] A tank liquid preheating device for addition includes a tank body and a pipeline. High-temperature liquid is stored inside the tank body. Both ends of the pipeline are respectively connected with a liquid inlet and the inlet of a three-way valve. The liquid inlet and the three-way valve are both located outside the tank body. The part of the pipeline inside the tank body is repeatedly wound to form a wavy structure and is immersed in the high-temperature liquid.

[0007] A temperature sensor is arranged at the three-way valve. Among the two outlets of the three-way valve, one outlet of the three-way valve is communicated with the pipeline at the liquid inlet through a solenoid valve I, and the other outlet of the three-way valve is connected with a liquid outlet through a solenoid valve II.

[0008] Furthermore, the temperature of the high-temperature liquid stored inside the tank body is above 90°.

[0009] Furthermore, the pipeline is made of PTFE material.

[0010] Furthermore, an impeller is rotatably arranged inside the tank body, and the position of the impeller corresponds to the part where the pipeline is repeatedly wound.

[0011] Furthermore, the impeller is an axial flow impeller, a mixed flow impeller or a centrifugal impeller.

[0012] Furthermore, during the rotation of the impeller, the flow direction of the high-temperature liquid guided by the impeller in the tank is opposite to the flow direction of the tank liquid in the pipeline.

[0013] Advantages of the present utility model:

[0014] Compared with the traditional method, in the corrosion production process of this technical solution, by preheating the tank liquid before it enters the reaction tank, the temperature of the tank liquid is raised to the preset temperature, so that the temperature of the tank liquid inside the reaction tank is the same as that of the tank liquid that has not yet been added to the reaction tank, improving the stability of the corrosion reaction, being conducive to improving product quality and reducing energy consumption, and the production efficiency can also be released. Description of the drawings

[0015] The following further describes the present utility model with reference to the drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] In the figure: 1, tank; 2, pipeline; 21, liquid inlet; 22, liquid outlet; 3, three-way valve; 31, solenoid valve 1; 32, solenoid valve 2; 4, temperature sensor; 5, impeller. Specific embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figure 1 shown, a tank liquid preheating device includes a tank 1 and a pipeline 2. The pipeline 2 is made of PTFE material to avoid the pipeline 2 being affected by the corrosion of the tank liquid. The tank 1 stores high-temperature liquid with a temperature above 90°. The two ends of the pipeline 2 are respectively connected to a liquid inlet 21 and the inlet of a three-way valve 3. The liquid inlet 21 and the three-way valve 3 are both located outside the tank 1. The part of the pipeline 2 inside the tank 1 is repeatedly wound to form a wavy structure and is immersed in the high-temperature liquid;

[0020] A temperature sensor 4 is provided at the three-way valve 3. Among the two outlets of the three-way valve 3, one outlet of the three-way valve 3 is connected to the pipeline 2 at the liquid inlet 21 through a solenoid valve 1 31, and the other outlet of the three-way valve 3 is connected to a liquid outlet 22 through a solenoid valve 2 32.

[0021] During the etching production process, the bath solution preset at room temperature of 25°C enters the interior of the pipeline 2 through the liquid inlet 21 and flows towards the three-way valve 3. When the bath solution passes through the coiled part of the pipeline 2, the bath solution exchanges heat with the high-temperature liquid in the tank body 1, and the temperature of the bath solution will increase. When the bath solution reaches the position of the three-way valve 3 after passing through the coiled part, the temperature sensor 4 will monitor the temperature of the bath solution. When the temperature of the bath solution reaches the preset temperature of 60°C or other preset temperatures, the solenoid valve 31 will be closed and the solenoid valve 32 will be opened, so that the bath solution with the temperature reaching the preset temperature will be directly added to the reaction tank through the liquid outlet 22; if the bath solution fails to reach the preset temperature, the solenoid valve 31 will be opened and the solenoid valve 32 will be closed, and the bath solution will re-enter the coiled part of the pipeline 2 for heat exchange until the temperature reaches the preset temperature.

[0022] In this solution, the bath solution is preheated before entering the reaction tank, so that the temperature of the bath solution is raised to the preset temperature, improving the stability of the etching reaction, being beneficial to improving product quality and reducing energy consumption, and the production efficiency can also be released. Moreover, this device can heat the bath solution quickly and evenly to ensure that the bath solution reaches the optimal temperature when added to the reaction tank.

[0023] It should be noted that the high-temperature liquid in the tank body 1 can be some bath solutions that need to be cooled, so as to reduce the usage amount of cooling water in the temperature circulation system of such bath solutions, being more energy-saving and reducing losses.

[0024] As an example, both the solenoid valve 31 and the solenoid valve 32 in this device are equipped with an electrical control system, and the opening / closing of the valves is controlled by the data of the temperature sensor 4.

[0025] As an example, an impeller 5 is rotatably arranged in the tank body 1. The impeller 5 is an axial flow impeller, a mixed flow impeller or a centrifugal impeller, and the position of the impeller 5 corresponds to the repeatedly coiled part of the pipeline 2.

[0026] In order to further improve the preheating efficiency of the bath solution in the pipeline 2, the impeller 5 is driven to rotate by a driving member. The driving member can be a motor. During the rotation of the impeller 5, the flow direction of the high-temperature liquid guided by the impeller 5 in the tank body 1 is opposite to the flow direction of the bath solution in the pipeline 2, so that a large temperature difference is maintained between the two during the heat exchange process, thereby improving the heat exchange efficiency.

[0027] It should be noted that by adjusting the flow rate of the low-temperature bath solution in the pipeline 2 to keep it in an appropriate flow state, heat exchange deficiency caused by too low flow rate or energy loss caused by too high flow rate can be avoided.

[0028] In addition to the impeller 5, a water pump can also be arranged in the tank body 1 to achieve the above functions.

[0029] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above content is only an example and illustration of the present utility model. Those skilled in the art to which this technology belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as they do not deviate from the utility model or exceed the scope defined by this claim book, they should all belong to the protection scope of the present utility model.

Claims

1. A bath preheating device, comprising a bath body (1) and a pipeline (2), characterized in that, The inside of the tank body (1) stores high-temperature liquid. Both ends of the pipeline (2) are respectively connected with a liquid inlet (21) and an inlet of a three-way valve (3). The liquid inlet (21) and the three-way valve (3) are both located outside the tank body (1). The part of the pipeline (2) inside the tank body (1) is repeatedly wound to form a wavy structure and is immersed in the high-temperature liquid. A temperature sensor (4) is arranged at the three-way valve (3). Among the two outlets of the three-way valve (3), one outlet of the three-way valve (3) is communicated with the pipeline (2) at the liquid inlet (21) through a solenoid valve I (31), and the other outlet of the three-way valve (3) is connected with a liquid outlet (22) through a solenoid valve II (32).

2. The slot solution preheating device according to claim 1, characterized in that, The temperature of the high-temperature liquid stored inside the tank body (1) is above 90°C.

3. The slot liquid preheating device according to claim 1, characterized in that, The pipeline (2) is made of PTFE material.

4. The slot liquid preheating device according to claim 1, characterized in that, An impeller (5) is rotatably arranged inside the tank body (1), and the position of the impeller (5) corresponds to the part where the pipeline (2) is repeatedly wound.

5. The slot solution preheating device according to claim 4, characterized in that, The impeller (5) is an axial flow impeller, a mixed flow impeller or a centrifugal impeller.

6. The addition tank solution preheating device according to claim 4, characterized in that, During the rotation of the impeller (5), the flow direction of the high-temperature liquid guided by the impeller (5) inside the tank body (1) is opposite to the flow direction of the liquid in the pipeline (2).

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