An in-situ cleaning machine for a positive electrode material heat exchange device

By designing an in-situ cleaning machine for the positive electrode material heat exchanger, and using a combination of chemical soaking and water circulation cleaning with air blowing to remove sewage, the problem of heat exchanger blockage was solved, and the cleaning efficiency and equipment operation reliability were improved.

CN224435177UActive Publication Date: 2026-06-30XTC NEW ENERGY MATERIALS (NINGDE) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XTC NEW ENERGY MATERIALS (NINGDE) CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the current lithium-ion material production process, heat exchangers are prone to blockage due to copper rust crystallization and impurities in chilled water, resulting in difficult and inefficient cleaning, which affects production efficiency and equipment operation.

Method used

Design an in-situ cleaning machine for a positive electrode material heat exchange device. Through a chemical tank, water tank, water pump, pneumatic pump and pipeline system, it realizes automated circulation cleaning. It uses chemical soaking and water circulation cleaning, combined with air blowing to remove dirt, avoiding the need to disassemble the heat exchanger.

Benefits of technology

It achieves efficient cleaning of internal fouling in heat exchangers, increases cleaning speed, reduces labor intensity and time costs for workers, and improves equipment operating efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an in-situ cleaning machine for a positive electrode material heat exchange device. Its medicine tank and water tank are mounted on a frame. A water outlet pipe connects to a water pump and the bottom of the medicine tank and water tank, and a cleaning pipe connects to the heat exchange device. A return water pipe connects to the heat exchanger and the upper end of the medicine tank and water tank. A drain pipe connects to a pneumatic pump and the bottom of the medicine tank and water tank. A water delivery pipe connects to the pneumatic pump. An air blowing pipe connects to the cleaning pipe. The control box is equipped with a touch screen and a PLC controller. This application includes a medicine tank, water tank, water pump, pneumatic pump, pipes, an air blowing pipe, and a control box. The cleaning machine is directly connected to the heat exchanger to be cleaned. The medicine from the medicine tank is injected into the heat exchanger for soaking and circulating cleaning, followed by water circulation cleaning. Finally, air blowing is used to expel the internal liquid. This equipment achieves automatic cycle switching cleaning, has a high degree of automation, and achieves in-situ cleaning without disassembling the entire machine, increasing cleaning speed, reducing labor intensity, improving cleaning efficiency, saving labor and time costs, and reducing equipment failure rate.
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Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary cleaning equipment for cathode material production, and in particular relates to an in-situ cleaning machine for cathode material heat exchange devices. Background Technology

[0002] In the production and processing of lithium-ion materials, such as cathode materials, iron removal machines, high-speed mixers, and mechanical mills are used to process the materials into powder. These machines all require heat exchangers to transfer excess heat, and the equipment and its associated heat exchangers operate essentially 24 hours a day. During operation, copper rust crystals and impurities in the chilled water can clog the copper tubes of the heat exchangers, leading to their failure. Replacing the heat exchangers and dismantling the entire machine incurs costs. Current practices involve disassembling the clogged heat exchangers and manually cleaning them to remove internal scale. This cleaning process is difficult, inefficient, time-consuming, and labor-intensive, impacting overall machine operation and delaying production. Utility Model Content

[0003] This invention provides an in-situ cleaning machine for a positive electrode material heat exchange device. The device can clean the internal dirt of the heat exchanger without completely disassembling it, ensuring the heat exchange efficiency of the heat exchanger and effectively solving the above-mentioned problems.

[0004] This utility model is implemented as follows:

[0005] An in-situ cleaning machine for a positive electrode material heat exchange device includes a frame, a chemical tank, a water tank, a water pump, a pneumatic pump, pipes, an air blowing pipe, and a control box. The chemical tank and water tank are respectively located on both sides of the frame, and the water pump and pneumatic pump are located inside the frame between the chemical tank and water tank. The pipes include an outlet pipe, a cleaning pipe, a return pipe, a drain pipe, and a water supply pipe. One end of the outlet pipe is connected to the water pump inlet, and the other end is connected to the bottom of both the chemical tank and the water tank. The water pump outlet is used for cleaning... The pipes are connected to the heat exchange device. One end of the return water pipe is connected to the heat exchange device, and the other end is connected to the upper end of the medicine tank and the water tank respectively. One end of the drain pipe is connected to the inlet of the pneumatic pump, and the other end is connected to the bottom of the medicine tank and the water tank respectively. The water supply pipe is connected to the pneumatic pump. Ball valves are installed on the outlet pipe, cleaning pipe, return water pipe, drain pipe and water supply pipe respectively. The air blowing pipe is connected to the cleaning pipe. The control box is located on one side of the frame. The control box is equipped with a touch screen and a PLC controller.

[0006] As a further improvement, the ball valve is an electric ball valve.

[0007] As a further improvement, a pressure sensor is provided on the cleaning tube.

[0008] As a further improvement, the return water pipe ports of the medicine tank and the water tank are respectively equipped with filters.

[0009] As a further improvement, the touchscreen can be set for pickling time, washing time, and air blowing time.

[0010] As a further improvement, the cleaning pipe and the return water pipe are connected to extension hoses, and the front side of the frame is provided with winding discs corresponding to the cleaning pipe and the return water pipe, and the hoses are collected on the winding discs respectively.

[0011] As a further improvement, the medicine box and water tank are equipped with lids.

[0012] As a further improvement, a manual drain pipe is provided between the water supply pipe and the bottom of the medicine tank and water tank.

[0013] As a further improvement, the frame is equipped with casters at the bottom.

[0014] The beneficial effects of this utility model are as follows: This application, through the design of a medicine tank, water tank, water pump, pneumatic pump, pipeline, air blowing pipe, and control box, connects the cleaning machine directly to the inlet and outlet of the heat exchanger to be cleaned. The medicine in the medicine tank is injected into the heat exchanger for soaking and circulating cleaning, followed by water circulation cleaning, and finally air blowing is used to discharge the liquid in the heat exchanger. This equipment can achieve automatic cycle switching cleaning, has a high degree of automation, and can achieve in-situ cleaning without disassembling the whole machine, which improves the cleaning speed, reduces the labor intensity of workers, improves cleaning efficiency, saves labor and time costs, and reduces the failure rate of equipment during use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an in-situ cleaning machine for a positive electrode material heat exchange device according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of an in-situ cleaning machine for a positive electrode material heat exchange device according to this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of an embodiment of an in-situ cleaning machine for a positive electrode material heat exchange device according to this utility model;

[0019] Figure 4 This is a schematic diagram of the tank pipeline connection provided in an embodiment of the in-situ cleaning machine for a positive electrode material heat exchange device of this utility model;

[0020] Figure 5 This is a schematic diagram of the water tank and pipeline connection provided in an embodiment of an in-situ cleaning machine for a positive electrode material heat exchange device according to this utility model;

[0021] Figure 6 This is a before-and-after comparison diagram of the cleaning process in this application.

[0022] Figure label:

[0023] Frame 1; winding tray 11; casters 12; medicine tank 2; water tank 3; water pump 4; pneumatic pump 5; pipe 6; outlet pipe 61; cleaning pipe 62; return pipe 63; drain pipe 64; water supply pipe 65; ball valve 66; pressure sensor 67; air blowing pipe 7; control box 8; touch screen 81; filter 9. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0025] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, the terms "upper", "middle", "side", "side", "upper side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Reference Figure 1-5As shown, an in-situ cleaning machine for a positive electrode material heat exchange device includes a frame 1, a medicine tank 2, a water tank 3, a water pump 4, a pneumatic pump 5, pipes 6, an air blowing pipe 7, and a control box 8. The medicine tank 2 and the water tank 3 are respectively located on both sides of the frame 1, and the water pump 4 and the pneumatic pump 5 are located inside the frame 1 between the medicine tank 2 and the water tank 3. The pipes 6 are provided with an outlet pipe 61, a cleaning pipe 62, a return pipe 63, a drain pipe 64, and a water supply pipe 65. One end of the outlet pipe 61 is connected to the inlet of the water pump 4, and the other end is connected to the bottom of the medicine tank 2 and the water tank 3 respectively. The outlet of the water pump 4 is connected to the cleaning pipe 65. The washing pipe 62 is connected to the heat exchange device. One end of the return water pipe 63 is connected to the heat exchange device, and the other end is connected to the upper end of the medicine tank 2 and the water tank 3 respectively. One end of the drain pipe 64 is connected to the inlet of the pneumatic pump 5, and the other end is connected to the bottom of the medicine tank 2 and the water tank 3 respectively. The water supply pipe 65 is connected to the pneumatic pump 5. Ball valves 66 are respectively provided on the outlet pipe 61, washing pipe 62, return water pipe 63, drain pipe 64 and water supply pipe 65. The air blowing pipe 7 is connected to the washing pipe 62. The control box 8 is located on one side of the frame 1. The control box 8 is equipped with a touch screen 81 and a PLC controller.

[0028] Depending on the needs, the circulation path can be configured first in tank 2 to soak and circulate the heat exchanger with the chemicals. After a set time, the path can be switched to tank 3 to circulate and flush the heat exchanger. Afterward, air blowing can be used to drain the liquid from pipe 6. Alternatively, tank 3 can be circulated first to initially flush the scale inside the heat exchanger, then the path can be switched back to tank 2 for soaking and circulation. After a set time, the path can be switched back to tank 3 to circulate and flush the heat exchanger, preventing corrosion from the chemicals. Afterward, air blowing can be used to drain the liquid from pipe 6. During the circulation processes in tank 2 and tank 3, water from tank 3 can be used to recycle water from pipe 6 back to tank 2 for further circulation in tank 3; alternatively, air blowing can be used to recycle the chemicals back to tank 2 before switching back to tank 3.

[0029] The air blowing pipe 7 is connected to an external air source, and an air pressure regulating valve is installed on the air blowing pipe 7. When blowing air, close the ball valve 66 at the end of the water pump 4 to avoid backflow and damage to the water pump 4.

[0030] Furthermore, the ball valve 66 is an electric ball valve.

[0031] The electric ball valve 66 enables automatic switching of the circulating water path, achieving automated cleaning.

[0032] Furthermore, a pressure sensor 67 is provided on the cleaning tube 62.

[0033] Used to control cleaning pressure and prevent severe blockage and pressure overload from damaging the equipment.

[0034] Furthermore, the return water pipe 63 ports of the medicine tank 2 and the water tank 3 are respectively equipped with filters 9.

[0035] Filter 9 is used to collect residues rinsed out of the cleaning fluid. Filter 9 can be a filter screen, filter cylinder, or filter bag, and can be detachably installed at the return water pipe 63 port. It can be connected by snap-fit, threaded connection, clamp, or other methods.

[0036] Furthermore, the touchscreen 81 can be set with pickling time, water washing time, and air blowing time.

[0037] The appropriate cleaning time can be set according to the type of heat exchange device and the degree of contamination to achieve the cleaning purpose.

[0038] Furthermore, the cleaning pipe 62 and the return water pipe 63 are connected to extension hoses, and the front side of the frame 1 is provided with winding discs 11 corresponding to the cleaning pipe 62 and the return water pipe 63, and the hoses are collected on the winding discs 11 respectively.

[0039] The hose can be connected to the equipment to be cleaned and stored away to keep it tidy.

[0040] Furthermore, the medicine box 2 and the water box 3 are equipped with lids.

[0041] Furthermore, a manual drain pipe 64 is provided between the water supply pipe 65 and the bottom of the medicine tank 2 and the water tank 3.

[0042] Furthermore, the bottom of the frame 1 is provided with casters 12.

[0043] Easy-to-move device.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An in-situ cleaning machine for a positive electrode material heat exchange device, characterized in that, The system includes a frame, a medicine tank, a water tank, a water pump, a pneumatic pump, pipes, an air blowing pipe, and a control box. The medicine tank and water tank are located on opposite sides of the frame, while the water pump and pneumatic pump are located within the frame between them. The pipes include an outlet pipe, a cleaning pipe, a return pipe, a drain pipe, and a supply pipe. One end of the outlet pipe is connected to the water pump inlet, and the other end is connected to the bottom of both the medicine tank and the water tank. The water pump outlet is connected to a heat exchanger via the cleaning pipe. One end of the return pipe is connected to the heat exchanger, and the other end is connected to the top of both the medicine tank and the water tank. One end of the drain pipe is connected to the pneumatic pump inlet, and the other end is connected to the bottom of both the medicine tank and the water tank. The supply pipe is connected to the pneumatic pump. Ball valves are installed on the outlet pipe, cleaning pipe, return pipe, drain pipe, and supply pipe. The air blowing pipe is connected to the cleaning pipe. The control box is located on one side of the frame and includes a touch screen and a PLC controller.

2. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The ball valve is an electric ball valve.

3. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, A pressure sensor is installed on the cleaning tube.

4. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The return water pipe ports of the medicine tank and water tank are respectively equipped with filters.

5. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The touchscreen allows setting the pickling time, washing time, and air blowing time.

6. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The cleaning pipe and the return water pipe are connected to extension hoses. The front side of the frame is provided with winding discs corresponding to the cleaning pipe and the return water pipe, and the hoses are collected on the winding discs respectively.

7. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The medicine box and water tank are equipped with lids.

8. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, A manual drain pipe is provided between the water supply pipe and the bottom of the medicine box and water tank.

9. The in-situ cleaning machine for a positive electrode material heat exchange device according to claim 1, characterized in that, The frame is equipped with casters at the bottom.