A hot water pump for high purity dimer acid production

Abstract

This utility model discloses a hot water pump for the production of high-purity dimer acid, relating to the field of hot water pump technology. It includes a pump body, a motor, a heating device, and a filtration device. The motor is mounted on one side of the pump body. A heating device for heat preservation is installed below the pump body. A filtration device for filtering impurities generated during heating is installed above the pump body. A first pipe for transporting hot water to a reaction vessel is connected above the filtration device. A second pipe for transporting circulating hot water is located on the side of the heating device away from the motor. The outer layer of the filtration device is a shell. A first opening for connecting the first pipe is located at the upper center of the shell, and a second opening for connecting the pump body is located at the lower center of the shell. A filter layer for filtering impurities is installed inside the shell. This utility model, through the internal filtration layer of the filtration device, can effectively remove impurities generated during the heating process, preventing impurities from entering the reaction vessel and affecting product quality.

Description

Technical Field

[0001] This utility model relates to the field of hot water pump technology, and more specifically to a hot water pump for the production of high-purity dimer acid. Background Technology

[0002] High-purity dimer acid is an important fine chemical widely used in coatings, electronic materials, optical materials and other fields. In its production process, hot water pump is one of the key pieces of equipment, mainly used to transport high-temperature, high-purity reaction media (such as dimer acid and its precursors). Through the rotation of the impeller, the hot water pump converts mechanical energy into the kinetic and pressure energy of the liquid, thereby realizing the transport of the liquid.

[0003] The existing hot water pump, as shown in application number CN202421617518.5, "A circulating hot water pump with heat preservation function", can achieve the heat preservation function by heating the hot water in the hot water pump with an electric heating wire. However, in the production of high-purity dimer acid, the electric heating wire may oxidize at high temperature and release metal ions; and the aging and corrosion of the electric heating wire may also lead to the generation of particulate matter, resulting in a decrease in product purity. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a hot water pump for the production of high-purity dimer acid.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] This utility model proposes a hot water pump for the production of high-purity dimer acid, including a pump body, a motor, a heating device, and a filtration device. The motor is installed on one side of the pump body, and a heating device for heat preservation is installed below the pump body. A filtration device for filtering impurities generated during heating is installed above the pump body. A first pipe for transporting hot water to a reaction vessel is connected above the filtration device. A second pipe for transporting circulating hot water is installed on the side of the heating device away from the motor. The outer layer of the filtration device is a shell. A first opening for connecting the first pipe is provided at the upper center of the shell, and a second opening for connecting the pump body is provided at the lower center of the shell. A filter layer for filtering impurities is installed inside the shell.

[0007] As a preferred embodiment of this utility model, the heating device is provided with a heating channel for transporting water, and an electric heating rod for heating is provided in the heating channel.

[0008] As a preferred embodiment of this invention, a third pipe for conveying water to the pump body is connected above the heating channel.

[0009] As a preferred technical solution of this utility model, the pump body is made of 316L stainless steel to ensure that no impurities are released under high temperature conditions.

[0010] As a preferred technical solution of this utility model, the first pipe, the second pipe and the third pipe are made of stainless steel to ensure that no impurities are released or corrosion occurs at high temperatures.

[0011] As a preferred embodiment of this utility model, the filter layer and the housing are connected by a snap-fit, which facilitates timely disassembly and replacement.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention uses an electric heating rod in the heating device to ensure a stable water temperature in the pump body and pipeline, maintain the temperature of the reaction medium, and promote the smooth progress of the reaction. The filter layer inside the filtration device uses a targeted filter medium, which can effectively remove impurities generated during the heating process, ensure the cleanliness of the transported hot water, and prevent impurities from entering the reaction vessel and affecting product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the heating device structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the filter device of this utility model.

[0017] Reference numerals: 1. Motor; 2. Heating device; 3. Filtering device; 4. Pump body; 5. First pipe; 6. Second pipe; 21. Heating rod; 22. Heating channel; 23. Third pipe; 31. First opening; 32. Second opening; 33. Filter layer; 34. Shell. Detailed Implementation Example 1

[0018] like Figures 1 to 3 As shown, this utility model proposes: a hot water pump for the production of high-purity dimer acid.

[0019] The pump body is made of 316L stainless steel to ensure that no impurities are released in high-temperature environments; a motor is installed on one side of the pump body to drive the pump body to operate.

[0020] The heating device is installed below the pump body and has an internal heating channel containing a heating rod for heating the water flow. A third pipe connects above the heating channel to deliver the heated water to the pump body. The filtration device is installed above the pump body to filter impurities and ions generated during the heating process. The outer layer of the filtration device is a shell with a first opening at the top center for connecting to the first pipe and a second opening at the bottom center for connecting to the pump body. Inside the shell is a multi-layered filter layer, including an activated carbon layer, an ion exchange resin layer, and an ultrafiltration membrane layer, to effectively remove metal ions and suspended particles from the water. The filter layer is connected to the shell via snap-fit ​​connections for easy disassembly and replacement.

[0021] The first pipe connects to the top of the filter device and is used to transport the filtered hot water to the reaction vessel; the second pipe connects to the side of the heating device away from the motor and is used to transport circulating hot water; through the second pipe, hot water that is not used directly can be circulated back to the heating device for reheating and filtration; the first, second and third pipes are all made of stainless steel to ensure that no impurities are released or corrosion occurs at high temperatures.

[0022] Working Principle: The motor drives the pump to draw water from the heating device and heat it. During the heating process, the heating rod may generate a small amount of impurity ions (such as calcium, magnesium, iron, and other metal ions). The heated water enters the pump body through a third pipe, and the pump body transports the water to the filtration device for filtration. The activated carbon layer in the filtration device adsorbs organic impurities, the ion exchange resin layer removes metal ions, and the ultrafiltration membrane layer filters suspended particles, thus ensuring the high purity of the hot water. The filtered hot water is transported to the reaction vessel through the first pipe, while the hot water not used directly is circulated back to the heating device through the second pipe for reheating and filtration. Through the thermal circulation design, the system can efficiently utilize heat while ensuring that the transported hot water is free of impurity ions, meeting the process requirements for the production of high-purity dimer acid.

[0023] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot water pump for high purity dimer acid production, comprising a pump body (4), a motor (1), a heating device (2) and a filtering device (3), characterized in that: The motor (1) is installed on one side of the pump body (4). A heating device (2) for heat preservation is installed below the pump body (4). A filter device (3) for filtering impurities generated by heating is provided above the pump body (4). A first pipe (5) for transporting hot water to the reactor is connected above the filter device (3). A second pipe (6) for transporting circulating hot water is provided on the side of the heating device (2) away from the motor (1). The outer layer of the filter device (3) is a shell (34). A first opening (31) for connecting the first pipe (5) is left in the middle of the upper part of the shell (34). A second opening (32) for connecting the pump body (4) is left in the middle of the lower part of the shell (34). A filter layer (33) for filtering impurities is installed inside the shell (34).

2. A hot water pump for high purity dimer acid production as claimed in claim 1, wherein: The heating device (2) is provided with a heating channel (22) for transporting water, and an electric heating rod (21) for heating is provided in the heating channel (22).

3. A hot water pump for high purity dimer acid production as claimed in claim 2, wherein: A third pipe (23) for conveying water to the pump body (4) is connected above the heating channel (22).

4. A hot water pump for high purity dimer acid production as claimed in claim 1, wherein: The pump body (4) is made of 316L stainless steel to ensure that no impurities are released in high-temperature environments.

5. A hot water pump for high purity dimer acid production as claimed in claim 1, wherein: The first pipe (5), the second pipe (6) and the third pipe (23) are made of stainless steel to ensure that no impurities are released or corrosion occurs at high temperatures.

6. A hot water pump for high purity dimer acid production as claimed in claim 1, wherein: The filter layer (33) and the housing (34) are connected by a snap-fit, which facilitates timely disassembly and replacement.

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