Oiling device
By using an oiling device including an oiling chamber, a spraying device, a temperature adjustment device and agitating device in the production process of carbon fiber raw wire, the problems of the oiling agent solution being prone to blockage, fouling and producing a large amount of foam are solved, and the uniform concentration and temperature of the oiling agent solution in the oiling chamber are achieved, production is stabilized and product quality is improved.
Patent Information
- Application Number
- CN202421691114.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-17
AI Technical Summary
During the production process of carbon fiber raw wire, the oil agent solution is prone to agglomeration, scaling, and a large amount of foam during the heat exchange process of the diaphragm pump circulation device and the tube heat exchanger, resulting in unstable production, decreasing product quality and increasing production costs.
An oiling device is provided, including an oiling chamber, a desalinated water spraying device, an oil agent spraying device, a temperature adjustment device and a stirring device. By directly spraying and stirring the desalinated water and oil agent in the oiling chamber, the temperature in the oiling chamber is directly adjusted to avoid agglomeration, scaling and foaming problems caused by long-term pipes.
Through this oiling device, the concentration and temperature of the oil agent solution in the oiling chamber are ensured to be uniform, blocking, scaling and foaming problems are avoided, the temperature adjustment efficiency in the oiling chamber is improved, the production of carbon fiber raw silk is stabilized, the product quality is improved, and the production cost is reduced.
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Figure CN222861734U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of carbon fiber production, and in particular to an oiling device. Background Art
[0002] With the large-scale development of carbon fiber production, the oiling process in the production of carbon fiber precursor directly affects the carbonization process and the product quality of carbon fiber precursor. The operation quality of the oiling process will directly affect the strength, modulus, hairiness and economic benefits of the carbonized carbon filaments. In order to achieve the goals of stable production, quality improvement, energy saving, cost reduction and safety in the production of carbon fiber precursor, the oiling uniformity and oiling effect of the oiling process in the production of carbon fiber precursor are very important.
[0003] In the related art, the oiling process in the production of carbon fiber precursor uses a diaphragm pump circulation device and a shell-and-tube heat exchanger to control the concentration and temperature of the oil in the oil tank. However, the oil solution is prone to agglomeration, scaling, and a large amount of foam, and the hair will block the circulation system during the heat exchange circulation process of the diaphragm pump circulation device and the shell-and-tube heat exchanger. This will lead to unstable production of carbon fiber precursor, reduced product quality, increased production costs, and even increased safety risks due to the increase in the number of manual operations. Utility Model Content
[0004] In order to solve the above technical problems, the present disclosure provides an oiling device, comprising:
[0005] The oiling chamber is used to contain desalted water and oiling agent, and to oil the carbon fiber precursor;
[0006] A desalted water spraying device, used for spraying desalted water into the upper oil cavity;
[0007] An oil spraying device, used for spraying oil into the upper oil cavity;
[0008] A temperature regulating device, used for regulating the temperature in the upper oil chamber;
[0009] A stirring device is used to stir the desalted water and the oil agent in the upper oil chamber.
[0010] In some embodiments of the present disclosure, the oiling device includes an upper oil tank, the inner cavity of the upper oil tank constitutes the upper oil cavity; the temperature regulating device includes a heat exchange layer, and the heat exchange layer constitutes the bottom of the upper oil tank.
[0011] In some embodiments of the present disclosure, the heat exchange layer includes a heat exchange cavity, and a plurality of baffles are provided in the heat exchange cavity; the temperature regulating device also includes a constant temperature fluid circulation system, and the constant temperature fluid circulation system forms a loop with the heat exchange cavity, and the constant temperature fluid circulation system transports constant temperature fluid into the heat exchange cavity through a fluid inlet, and the heat exchange cavity transports constant temperature fluid to the constant temperature fluid circulation system through a fluid outlet; the fluid inlet is provided with a first valve, and the first valve is used to control the flow rate of the constant temperature fluid.
[0012] In some embodiments of the present disclosure, the stirring device includes several stirring groups, each of which includes a magnetic stirring bar and a magnetic stirrer; the magnetic stirring bar is arranged at the bottom of the upper oil chamber, and the magnetic stirring bar is arranged below the heat exchange layer, and the magnetic stirring bar is abutted against the lower part of the heat exchange layer; for each stirring group, in the longitudinal direction, the position of the magnetic stirrer corresponds to that of the magnetic stirring bar.
[0013] In some embodiments of the present disclosure, the stirring group further includes a protective cage, which is fixed to the bottom of the oiling chamber in a preset arrangement, and the magnetic stirrer is disposed inside the protective cage.
[0014] In some embodiments of the present disclosure, the oiling device also includes a first temperature monitoring device and a second temperature monitoring device, the first temperature monitoring device is arranged near the bottom of the upper oiling chamber, and the second temperature monitoring device is arranged near the top of the upper oiling chamber; the first temperature monitoring device and the second temperature monitoring device are both located below the liquid level in the upper oiling chamber.
[0015] In some embodiments of the present disclosure, the desalted water spraying device includes a second valve, and the second valve is used to control the flow rate of the desalted water;
[0016] The oil spraying device comprises a third valve, and the third valve is used to control the flow rate of the oil.
[0017] In some embodiments of the present disclosure, the oiling device also includes a control system, and the control system is connected to the first valve, the second valve, the third valve, the magnetic agitator, the first temperature monitoring device and the second temperature monitoring device.
[0018] In some embodiments of the present disclosure, the height of the upper oil cavity is less than or equal to 0.2 meters.
[0019] In some embodiments of the present disclosure, the oiling device further comprises a plurality of tension frames, which are arranged below the liquid level in the oiling chamber; in the moving direction of the carbon fiber precursor, the tension frames are located on the same plane.
[0020] The present disclosure has at least the following effects:
[0021] The oiling device provided by the present disclosure directly adds desalted water and oil agent to the upper oil chamber in a spraying manner through a desalted water spraying device and an oil agent spraying device, and directly stirs and mixes the desalted water and oil agent in the upper oil chamber to obtain an oil agent solution, thereby ensuring the uniformity of the concentration and temperature of the oil agent solution in the upper oil chamber, and avoiding the problem of easy agglomeration, easy scaling and a large amount of foam caused by the long pipe path generated by first stirring and mixing to obtain the oil agent solution and then transporting the oil agent solution to the upper oil chamber. In addition, the oiling device directly adjusts the temperature in the upper oil chamber through a temperature regulating device, rather than transporting the oil agent solution to the upper oil chamber after heat exchange through a shell-and-tube heat exchanger, which can improve the temperature regulation efficiency in the upper oil chamber, and can avoid the problem of easy agglomeration, easy scaling, a large amount of foam and hair blocking the circulation system caused by the long pipe path. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0023] Figure 1 It is a schematic diagram of an oiling device in the related art;
[0024] Figure 2 It is a schematic diagram of an oiling device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.
[0026] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0027] like Figure 1As shown, in the oiling device 100 in the production process of carbon fiber precursor in the related technology, in the oiling process of the carbon fiber precursor 12, the desalted water in the desalted water storage tank 11 is added to the oil solution circulation storage tank 18, and the oil in the oil storage tank 10 is added to the oil solution circulation storage tank 18, and the desalted water and the solvent are mixed into a solvent solution in the oil solution circulation storage tank 18, and then circulated and transported through the diaphragm pump circulation device 17, and heat exchanged and temperature adjusted through the shell and tube heat exchanger 15 (the shell and tube heat exchanger is connected to the constant temperature water system 16 and the constant temperature water inlet 14), and finally transported to the upper oil tank 13, so as to achieve the effect of controlling the temperature and concentration of the oil solution in the upper oil tank 13. However, during the heat exchange circulation process of the diaphragm pump circulation device 17 and the shell-and-tube heat exchanger 15, the oil solution is prone to agglomeration, scaling, and the generation of a large amount of foam, and the circulation system will be blocked by hair due to the large number of valves, long pipe paths, many dead corners, and large temperature differences. This will lead to unstable production of carbon fiber precursors, reduced product quality, increased production costs, and even increased safety risks due to an increase in the number of manual operations.
[0028] In order to solve the problems existing in the related art, the exemplary embodiment of the present disclosure provides an oiling device, including an oiling chamber, a desalted water spraying device, an oil agent spraying device, a temperature regulating device and a stirring device. Among them, the upper oiling chamber is used to contain desalted water and oil agent, and to oil the carbon fiber precursor, the desalted water spraying device is used to spray desalted water to the upper oil chamber, the oil agent spraying device is used to spray the oil agent to the upper oil chamber, the temperature regulating device is used to adjust the temperature in the upper oiling chamber, and the stirring device is used to stir the desalted water and oil agent in the upper oiling chamber. The oiling device directly adds desalted water and oil agent to the upper oil chamber in a spraying manner through the desalted water spraying device and the oil agent spraying device, and directly stirs and mixes the desalted water and oil agent in the upper oiling chamber to obtain an oil agent solution, thereby ensuring the uniformity of the concentration and temperature of the oil agent solution in the upper oiling chamber, and avoiding the problem of easy agglomeration, easy scaling and a large amount of foam caused by the long pipe path generated by first stirring and mixing to obtain the oil agent solution and then transporting the oil agent solution to the upper oiling chamber. In addition, the oiling device directly adjusts the temperature in the oiling chamber through a temperature regulating device, rather than exchanging heat with the oil solution through a shell-and-tube heat exchanger and then transporting it to the oiling chamber. This can improve the temperature regulation efficiency in the oiling chamber and avoid the problems of easy agglomeration, scaling, large amounts of foam and hair clogging the circulation system due to a long pipe path.
[0029] In the exemplary embodiments provided in the present disclosure, Figure 2As shown, the oiling device 200 includes an upper oil tank 39, and the inner cavity of the upper oil tank 39 constitutes an upper oil cavity 38. The temperature regulating device 40 includes a heat exchange layer 41, and the heat exchange layer 41 constitutes the bottom of the upper oil tank 39. The oil solution in the upper oil tank 39 is temperature-regulated by the heat exchange layer 41, and the heat exchange layer 41 directly serves as the bottom of the upper oil tank 39, which can improve the temperature regulation efficiency of the oil solution in the upper oil tank 39.
[0030] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the heat exchange layer 41 includes a heat exchange cavity 42, and a plurality of baffles 43 (for example Figure 2 The heat exchange chamber 42 shown in the figure is provided with four baffles 43, and the baffles 43 can be arranged in parallel in the heat exchange chamber 42 at equal intervals. The temperature regulating device 40 also includes a constant temperature fluid circulation system 25, which forms a loop with the heat exchange chamber 42. The constant temperature fluid circulation system 25 delivers constant temperature fluid to the heat exchange chamber 42 through the fluid inlet 28, and the heat exchange chamber 42 delivers constant temperature fluid to the constant temperature fluid circulation system through the fluid outlet 44. The fluid inlet 28 is provided with a first valve 35, and the first valve 35 is used to control the flow rate of the constant temperature fluid.
[0031] refer to Figure 2 The constant temperature fluid flowing through the heat exchange cavity 42 can exchange heat for the oil solution in the upper oil tank 39, so as to adjust the temperature of the oil solution in the upper oil tank 39 to be constant, thereby ensuring the oiling effect of the carbon fiber precursor 34. In one embodiment, the fluid inlet 28, the heat exchange cavity 42, the fluid outlet 44 and the constant temperature fluid circulation system 25 form a loop. When the constant temperature fluid enters the heat exchange cavity 42 through the fluid inlet 28, the constant temperature fluid passes through a number of baffles 43 in the heat exchange cavity 42, which can extend the flow path length of the constant temperature fluid in the heat exchange cavity 42, increase the turbulence of the constant temperature fluid, and achieve the effect of improving the heat exchange efficiency of the heat exchange layer 41.
[0032] refer to Figure 2 A first valve 35 is provided at the fluid inlet 28 to control the flow of the constant temperature fluid flowing through the heat exchange chamber 42, so as to realize the efficiency of the heat exchange layer 41 in exchanging heat with the oil solution in the upper oil tank 39. For example, when the temperature of the oil solution in the upper oil tank 39 changes (for example, when the temperature decreases), the flow of the constant temperature fluid flowing through the heat exchange chamber 42 can be controlled by the first valve 35 to increase, so as to improve the heat exchange efficiency of the heat exchange layer and ensure that the temperature of the oil solution in the upper oil tank 39 is constant; when the temperature of the oil solution in the upper oil tank 39 does not change, the flow of the constant temperature fluid flowing through the heat exchange chamber 42 can be controlled by the first valve 35 to decrease, so as to save the energy consumption of the constant temperature fluid circulation system 25 and reduce the cost. It should be noted that the first valve 35 can be a start valve.
[0033] It should be noted that the constant temperature fluid may be a gas, such as air; the constant temperature fluid may also be a liquid, such as water, which is not limited in the present disclosure.
[0034] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the stirring device 45 includes a plurality of stirring groups 29 (e.g. Figure 2 The stirring device 45 shown in the figure includes two stirring groups 29, the stirring group 29 includes a magnetic stirring bar 31 and a magnetic stirrer 32, the magnetic stirring bar 31 is arranged at the bottom of the upper oil cavity 38, the magnetic stirring bar 32 is arranged below the heat exchange layer, and the magnetic stirring bar 32 abuts against the lower part of the heat exchange layer 41. For each stirring group 29, in the longitudinal direction, the position of the magnetic stirring bar 32 corresponds to that of the magnetic stirring bar 31. The magnetic stirring bar 32 arranged below the heat exchange layer can control the magnetic stirring bar 31 arranged at the bottom of the upper oil cavity 38 to rotate, so as to stir the oil solution in the upper oil tank 39, ensure the uniformity of the oil solution in the upper oil tank 39, that is, the uniformity of the concentration and the uniformity of the temperature of the oil solution, and avoid the problem of temperature difference or oil sedimentation in different parts of the oil solution in the upper oil tank 39, thereby affecting the oiling effect of the carbon fiber precursor 34.
[0035] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the stirring group 29 further includes a cage 30, which is fixed to the bottom of the upper oil chamber 38 according to a preset arrangement, and a magnetic stirrer 31 is arranged inside the cage 30. The cage 30 is arranged at the bottom of the upper oil chamber 38 according to the preset arrangement of the stirring group, and the magnetic stirrer 31 is arranged inside the cage 30, and the magnetic stirrer 31 is arranged at the bottom of the heat exchange layer 41 according to the arrangement mode in which the positions of the magnetic stirrer 32 and the magnetic stirrer 31 correspond in the longitudinal direction, so that the position of the magnetic stirrer 31 at the bottom of the upper oil chamber 38 can be fixed, so as to avoid the movement of the magnetic stirrer 31 during the working process to affect the stirring effect, and also avoid magnetic interference between the magnetic stirrers 31.
[0036] In the exemplary embodiments provided in the present disclosure, Figure 2As shown, the oiling device 200 further includes a first temperature monitoring device 27 and a second temperature monitoring device 26. The first temperature monitoring device 27 is arranged near the bottom of the upper oiling chamber 38, and the second temperature monitoring device 26 is arranged near the top of the upper oiling chamber 38. The first temperature monitoring device 27 and the second temperature monitoring device 26 are both located below the liquid level in the upper oiling chamber 38. The first temperature monitoring device 27 and the second temperature monitoring device 26 can respectively detect the temperature near the bottom of the upper oiling chamber 38 and the temperature near the top of the upper oiling chamber 38, so as to detect whether the temperature of the oil solution in the upper oiling chamber 38 is constant and whether the temperature at each location is uniform, so as to provide a reference for the operation of the temperature regulating device 40 and the stirring device 45.
[0037] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the desalted water spraying device 21 includes a second valve 36, which is used to control the flow rate of desalted water, and the oil spraying device 22 includes a third valve 37, which is used to control the flow rate of the oil. The desalted water spraying device 21 is used to spray desalted water to the upper oil chamber 38, and the oil spraying device 22 is used to spray the oil to the upper oil chamber 38. When the oil solution in the upper oil chamber 38 needs to be supplemented or replaced, according to the composition of the oil solution or the ratio of the desalted water and the oil, the flow rate of the desalted water spraying device 21 spraying the desalted water to the upper oil chamber 38 is controlled by adjusting the second valve 36, and the flow rate of the oil spraying device 22 spraying the oil to the upper oil chamber 38 is controlled by adjusting the third valve 37. Subsequently, the oil and desalted water in the upper oil chamber 38 are uniformly stirred by the stirring device 45 to form the oil solution required for oiling the carbon fiber precursor 34. It should be noted that the second valve 36 and the third valve 37 can be pneumatic valves.
[0038] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the oiling device 200 further includes a control system 20, and the control system 20 is connected to the first valve 35, the second valve 36, the third valve 37, the magnetic stirrer 32, the first temperature monitoring device 27 and the second temperature monitoring device 26. The control system 20 may be a DCS (Distributed Control System).
[0039] In one embodiment, the first temperature monitoring device 27 and the second temperature monitoring device 26 detect the temperature of the position near the bottom of the upper oil chamber 38 and the temperature of the position near the top of the upper oil chamber 38, respectively, and transmit the detection signal to the control system 20. When there is a temperature difference between the temperature of the position near the bottom of the upper oil chamber 38 and the temperature of the position near the top of the upper oil chamber 38, or when the temperature of the position near the bottom of the upper oil chamber 38 and the temperature of the position near the top of the upper oil chamber 38 are lower than the set temperature, the control system can control the first valve 35 to increase the flow rate of the constant temperature fluid flowing through the heat exchange chamber 42 to improve the heat exchange efficiency of the heat exchange layer and increase the temperature of the oil solution in the upper oil chamber 38. In addition, the control system can also control the magnetic stirrer 32 to rotate the magnetic stirrer 31 at the bottom of the upper oil chamber 38, or increase the rotation speed of the magnetic stirrer 31 so that the magnetic stirrer 31 stirs the oil solution in the upper oil chamber 38, ensures that the temperature of the oil solution in the upper oil chamber 38 is uniform, and avoids the temperature difference between different parts of the oil solution in the upper oil chamber 38 affecting the oiling effect of the carbon fiber precursor 34. Therefore, the control system 20 is connected to the first valve 35, the magnetic agitator 32, the first temperature monitoring device 27 and the second temperature monitoring device 26, which can realize automatic temperature adjustment in the oiling chamber 38 in the oiling device 200 to ensure the oiling effect of the carbon fiber precursor 34.
[0040] In another embodiment, when the oil solution in the upper oil chamber 38 needs to be supplemented or replaced, or when the oil solution in the upper oil chamber 38 is sampled to detect its concentration and does not match the set concentration, the control system can control the second valve 36 to control the flow rate of the desalted water spraying device 21 to spray the desalted water to the upper oil chamber 38 according to the composition of the oil solution or the ratio of the desalted water and the oil, and control the third valve 37 to control the flow rate of the oil spraying device 22 to spray the oil to the upper oil chamber 38. In addition, the control system can also control the magnetic stirrer 32 to rotate the magnetic stirrer 31 at the bottom of the upper oil chamber 38, or increase the rotation speed of the magnetic stirrer 31, so that the magnetic stirrer 31 stirs the oil and desalted water in the upper oil chamber 38 evenly to form the oil solution required for oiling the carbon fiber precursor 34. Therefore, the control system 20 is connected to the second valve 36, the third valve 37 and the magnetic agitator 32, which can realize the automatic addition of the oil solution in the upper oil chamber 38 in the oiling device 200, maintain the concentration of the oil solution in the upper oil chamber 38 constant, and thus ensure the oiling effect of the carbon fiber precursor 34.
[0041] In the exemplary embodiments provided by the present disclosure, Figure 2As shown, the height of the upper oil chamber 38 is less than or equal to 0.2 meters, which can ensure the uniformity of the concentration and temperature of the oil solution in the upper oil chamber 38, and avoid the problem of poor stirring effect caused by the height of the upper oil chamber 38 being too high, resulting in uneven concentration and temperature of the oil solution in the upper oil chamber 38.
[0042] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the oiling device 200 further includes a plurality of tension racks 33, which are arranged below the liquid level in the oiling chamber 38. In the moving direction of the carbon fiber precursor 34, each tension rack 33 is located on the same plane. The tension rack 33 can guide the carbon fiber precursor 34 so that the carbon fiber precursor 34 is oiled when passing through the oiling chamber 38.
[0043] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the oiling device 200 also includes an overflow port 23, which can discharge an appropriate amount of the oil solution when there is too much oil solution in the oiling chamber 38.
[0044] In the exemplary embodiments provided in the present disclosure, Figure 2 As shown, the oiling device 200 further includes a waste oil discharge port 24, which can discharge the waste oil solution in the upper oiling chamber 38 when the oil solution in the upper oiling chamber 38 needs to be replaced.
[0045] The oiling device provided by the above exemplary embodiment of the present disclosure can maintain the temperature of the oil solution in the oiling chamber at 25±5°C, and the concentration of the oil solution is maintained at 1.80±0.2%, so that the oil solution in the oiling chamber is in a state of almost constant temperature and constant concentration, and can reduce the generation of oil stains, hair and foam in the oiling chamber. The number of daily broken wires of the carbon fiber precursor oiled by the above oiling device is reduced by 50%, the daily broken wire output of the carbon fiber precursor is reduced by 35% (the superior product rate reaches more than 80%), the daily waste wire of the carbon fiber precursor is reduced by 50%, and the possibility of the risk of the oiling process position is controlled at level IV (low risk, acceptable). In addition, the oil content qualified rate of the carbon fiber precursor after oiling reaches 100%, the daily broken wire output in the carbonization production process is reduced by 15% (the superior product rate reaches more than 90%), the daily waste wire of the carbon fiber is reduced by 50%, and the possibility of the risk of the carbonization process is controlled at level IV (low risk, acceptable).
[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. An oiling device, characterized in that: include: The oiling chamber is used to contain desalted water and oiling agent, and to oil the carbon fiber precursor; A desalted water spraying device, used for spraying desalted water into the upper oil cavity; An oil spraying device, used for spraying oil into the upper oil cavity; A temperature regulating device, used for regulating the temperature in the upper oil chamber; A stirring device is used to stir the desalted water and the oil agent in the upper oil chamber.
2. The oiling device according to claim 1, characterized in that: The oiling device comprises an upper oil tank, the inner cavity of which constitutes the upper oil cavity; the temperature regulating device comprises a heat exchange layer, which constitutes the bottom of the upper oil tank.
3. The oiling device according to claim 2, characterized in that: The heat exchange layer includes a heat exchange cavity, in which a plurality of baffles are arranged; the temperature regulating device also includes a constant temperature fluid circulation system, which forms a loop with the heat exchange cavity, and the constant temperature fluid circulation system transports constant temperature fluid into the heat exchange cavity through a fluid inlet, and the heat exchange cavity transports constant temperature fluid to the constant temperature fluid circulation system through a fluid outlet; the fluid inlet is provided with a first valve, and the first valve is used to control the flow rate of the constant temperature fluid.
4. The oiling device according to claim 3, characterized in that: The stirring device includes several stirring groups, each of which includes a magnetic stirring bar and a magnetic stirrer; the magnetic stirring bar is arranged at the bottom of the upper oil chamber, the magnetic stirring bar is arranged below the heat exchange layer, and the magnetic stirring bar is abutted against the lower part of the heat exchange layer; for each stirring group, in the longitudinal direction, the magnetic stirrer corresponds to the position of the magnetic stirring bar.
5. The oiling device according to claim 4, characterized in that: The stirring group further comprises a guard cage, which is fixed to the bottom of the oiling chamber in a preset arrangement, and the magnetic stirring bar is arranged inside the guard cage.
6. The oiling device according to claim 4, characterized in that: The oiling device also includes a first temperature monitoring device and a second temperature monitoring device. The first temperature monitoring device is arranged near the bottom of the upper oiling chamber, and the second temperature monitoring device is arranged near the top of the upper oiling chamber. The first temperature monitoring device and the second temperature monitoring device are both located below the liquid level in the upper oiling chamber.
7. The oiling device according to claim 6, characterized in that: The desalted water spraying device comprises a second valve, and the second valve is used to control the flow rate of the desalted water; The oil spraying device comprises a third valve, and the third valve is used to control the flow rate of the oil.
8. The oiling device according to claim 7, characterized in that: The oiling device further comprises a control system, and the control system is connected with the first valve, the second valve, the third valve, the magnetic stirrer, the first temperature monitoring device and the second temperature monitoring device.
9. The oiling device according to claim 1, characterized in that: The height of the oil upper chamber is less than or equal to 0.2 meters.
10. The oiling device according to claim 1, characterized in that: The oiling device further comprises a plurality of tension frames, which are arranged below the liquid level in the oiling chamber; in the moving direction of the carbon fiber precursor, the tension frames are located on the same plane.