White oil preheating system
Through the steam generation device and multi-stage heat exchange device combined with the interlayer steam insulation white oil preheating system, the problems of uneven preheating of white oil and inaccurate temperature control are solved, and the stable temperature supply of lithium battery separators is achieved, which improves production efficiency and reduces equipment costs.
Patent Information
- Application Number
- CN202422168096.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The existing white oil preheating system has poor preheating effect, the white oil temperature does not meet the production requirements of lithium battery separators, and there are problems of heat loss and low temperature control accuracy during the transportation process.
A combined system of steam generation device, white oil output pipeline, first and second heat exchange devices, agitating tanks, high-position tanks and plunger pumps is adopted to ensure that the white oil reaches and maintains the required temperature through two heat exchanges and interlayer steam insulation, including filters and temperature control modules to improve temperature accuracy and uniformity.
It realizes uniform heating of white oil and precise temperature control, ensures stable temperature supply required for lithium battery separator production, improves production efficiency and reduces equipment costs.
Smart Images
Figure CN223165998U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery separator production equipment, and more specifically, to a white oil preheating system. Background Art
[0002] White oil is an important raw material in the production of lithium battery separators. During the extrusion process, white oil needs to be preheated by a mold temperature controller and injected by an injection oil pump. When preheating the white oil in the oil tank by the mold temperature controller, due to the large amount of white oil in the white oil tank area, there is a problem of uneven heating during preheating. In addition, there is a problem of heat loss during the transportation of white oil, and the temperature control accuracy of the mold temperature controller is relatively low. The difference between the actual temperature of the preheated white oil and the set value is greater than 1°C. Therefore, the temperature of the white oil preheated by the mold temperature controller cannot reach the set value required for production normally, which will cause the abnormal temperature of the injected white oil, and ultimately lead to poor mixing effect and affect the quality of the separator. Summary of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] The technical problem to be solved by the utility model is that the existing white oil preheating system has poor preheating effect on white oil, and the temperature of the output white oil cannot meet the requirements of lithium battery separator production.
[0005] (2) Technical Solutions
[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:
[0007] The utility model provides a white oil preheating system, which includes a steam generating device, a white oil output pipeline, a first heat exchange device, a stirring tank, a second heat exchange device, a plurality of high-level tanks, and a plurality of plunger pumps; the steam generating device is used to generate steam; the white oil output pipeline is used to output white oil; the first heat exchange device has a first raw material inlet and a first raw material outlet, the first raw material inlet is connected to the white oil output pipeline, and the first heat exchange device is used to heat the white oil to a first preset temperature and output it from the first raw material outlet; the stirring tank is connected to the first raw material outlet, the stirring tank is used to stir the white oil, and the tank wall of the stirring tank has a first interlayer, and the first interlayer is connected to the steam generating device; the second heat exchange device has a second raw material inlet and a second raw material outlet, the second raw material inlet is connected to the stirring tank, and the second heat exchange device is used to heat the white oil to a second preset temperature and output it from the second raw material outlet; a plurality of the high-level tanks are respectively connected to the second raw material outlet, and the tank wall of each high-level tank has a second interlayer, and the second interlayer is connected to the steam generating device; a plurality of plunger pumps are respectively correspondingly connected to a plurality of the high-level tanks, and are used to pump the white oil in the high-level tanks to each lithium battery separator production line.
[0008] Preferably, a filter is provided on the white oil output pipeline. The first outlet of the filter is connected to the first raw material inlet, and the second outlet of the filter is connected to the white oil collection pit.
[0009] Preferably, the steam generating device is connected to the first interlayer through a first pipeline, and the steam generating device is connected to the second interlayer through a second pipeline; a first solenoid valve is provided on the first pipeline, and a second solenoid valve is provided on the second pipeline.
[0010] Preferably, it further includes a temperature control module and a first temperature sensor; the first temperature sensor is arranged in the high-level tank, and the temperature control module is electrically connected to the first temperature sensor and the second solenoid valve respectively.
[0011] Preferably, the first heat exchange device includes a first raw material cylinder and a first heating medium circulation pipeline arranged around the first raw material cylinder. The first raw material cylinder has a first raw material inlet and a first raw material outlet, and the first heating medium circulation pipeline is connected to the steam generating device.
[0012] Preferably, the second heat exchange device includes a second raw material cylinder and a second heating medium circulation pipeline arranged around the second raw material cylinder. The second raw material cylinder has a second raw material inlet and a second raw material outlet, and the second heating medium circulation pipeline is connected to the steam generating device.
[0013] Preferably, both the first heat exchange device and the second heat exchange device are tubular heat exchangers.
[0014] Preferably, the first preset temperature is lower than the second preset temperature.
[0015] Preferably, the first preset temperature is 50°C, and the second preset temperature is 70°C to 110°C.
[0016] (III) Beneficial effects
[0017] The above technical solutions of the present invention have at least the following advantages:
[0018] 1. In the present utility model, white oil in the white oil storage area is output from the white oil output pipeline and conveyed to the first heat exchange device for heat exchange. The first heat exchange device heats the white oil to the first preset temperature and then conveys it to the stirring tank for stirring to make the white oil evenly heated. Steam is circulated in the first interlayer of the stirring tank, and the steam in the first interlayer can keep the white oil in the stirring tank warm to prevent the temperature of the white oil from decreasing during the stirring process. Then it is conveyed to the second heat exchange device for heating, and the white oil output from the stirring tank is heated to the second preset temperature. Through the heating of the two heat exchange devices, it is ensured that the white oil can be heated to the required temperature. Finally, the white oil is conveyed to the high-level tank for storage. The high-level tank has a second interlayer, and steam is introduced into the second interlayer. The steam in the second interlayer can keep the white oil in the high-level tank warm, thereby ensuring that the temperature of the white oil is maintained at the second preset temperature. When the lithium-ion battery separator production line needs to use white oil at the second preset temperature, only the corresponding plunger pump needs to be started for pumping.
[0019] 2. In the present utility model, the heat exchange medium required for the first heat exchange device and the second heat exchange device, as well as the heat preservation medium required for the first interlayer and the second interlayer, are all provided by the same steam generating device, saving equipment costs.
[0020] 3. In the present utility model, according to the needs of the lithium-ion battery separator production line, the corresponding number of high-level tanks can be expanded in parallel to achieve the simultaneous supply of white oil required by multiple lithium-ion battery separator production lines, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0022] Figure 1 It is a schematic structural diagram of the white oil preheating system provided by the embodiment of the present utility model.
[0023] The reference numerals in the drawings are as follows:
[0024] 1. Steam generating device; 2. White oil output pipeline; 3. First heat exchange device; 4. Stirring tank; 5. Second heat exchange device; 6. High-level tank; 7. Plunger pump; 8. First temperature sensor; 11. First pipeline; 12. Second pipeline; 21. Filter; 22. White oil collection pit; 31. First raw material inlet; 32. First raw material outlet; 33. First raw material cylinder; 34. First heating medium circulation pipeline; 41. First interlayer; 51. Second raw material inlet; 52. Second raw material outlet; 53. Second raw material cylinder; 54. Second heating medium circulation pipeline; 61. Second interlayer; 111. First solenoid valve; 121. Second solenoid valve; 211. First outlet; 212. Second outlet. Detailed implementation mode
[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
[0027] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating relative importance or indicating the quantity of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined. The following describes the specific implementation of the present utility model in more detail with reference to specific embodiments:
[0029] Such as Figure 1As shown in the figure, an embodiment of the present utility model provides a white oil preheating system, which includes a steam generating device 1, a white oil output pipeline 2, a first heat exchange device 3, a stirring tank 4, a second heat exchange device 5, a plurality of high-level tanks 6, and a plurality of plunger pumps 7; the steam generating device 1 is used to generate steam; the white oil output pipeline 2 is used to output white oil; the first heat exchange device 3 has a first raw material inlet 31 and a first raw material outlet 32, the first raw material inlet 31 is connected to the white oil output pipeline 2, and the first heat exchange device 3 is used to heat the white oil to a first preset temperature and output it from the first raw material outlet 32; the stirring tank 4 is connected to the first raw material outlet 31, the stirring tank 4 is used to stir the white oil, and the tank wall of the stirring tank 4 has a first interlayer 41, and the first interlayer 41 is connected to the steam generating device 1; the second heat exchange device 5 has a second raw material inlet 51 and a second raw material outlet 52, the second raw material inlet 51 is connected to the stirring tank 4, and the second heat exchange device 4 is used to heat the white oil to a second preset temperature and output it from the second raw material outlet 52; the plurality of high-level tanks 6 are respectively connected to the second raw material outlet 52, and the tank wall of each high-level tank 6 has a second interlayer 61, and the second interlayer 61 is connected to the steam generating device 1; the plurality of plunger pumps 7 are respectively connected to the plurality of high-level tanks 6 correspondingly, and are used to pump the white oil in the high-level tanks 6 to each lithium-ion battery separator production line.
[0030] The white oil in the white oil tank area is output from the white oil output pipeline 2 and transported to the first heat exchange device 3 for heat exchange. The first heat exchange device 3 heats the white oil to the first preset temperature, and then transports it to the stirring tank 4 for stirring to make the white oil evenly heated. Steam is circulated in the first interlayer 41 of the stirring tank 4, and the steam in the first interlayer 41 can keep the white oil in the stirring tank 4 warm and prevent the temperature of the white oil from decreasing during the stirring process; then it is transported to the second heat exchange device 5 for heating, and the white oil output from the stirring tank 4 is heated to the second preset temperature. Through the heating of the two heat exchange devices (the first heat exchange device 3 and the second heat exchange device 5), it is ensured that the white oil can be heated to the required temperature. Finally, the white oil is transported to the high-level tank 6 for storage. The high-level tank 6 has a second interlayer 61, and steam is introduced into the second interlayer 61. The steam in the second interlayer 61 can keep the white oil in the high-level tank warm, thereby ensuring that the temperature of the white oil is maintained at the second preset temperature. When the lithium-ion battery separator production line needs to use the white oil at the second preset temperature, only the corresponding plunger pump 7 needs to be started for pumping.
[0031] As an optional implementation manner of this embodiment, a filter 21 is provided on the white oil output pipeline 2. The first outlet 211 of the filter 21 is connected to the first raw material inlet 31, and the second outlet 212 of the filter 21 is connected to the white oil collection pit 22. The filter 21 is used to filter the impurities in the white oil output from the white oil output pipeline 2 to ensure the purity of the output white oil.
[0032] As an alternative implementation of this embodiment, the steam generating device 1 is connected to the first interlayer 41 through the first pipeline 11, and the steam generating device 1 is connected to the second interlayer 61 through the second pipeline 12; a first electromagnetic valve 111 is provided on the first pipeline 11, and a second electromagnetic valve 121 is provided on the second pipeline 12. The first electromagnetic valve 111 can control the on / off of the first pipeline 11, thereby realizing the control of the steam supply in the first interlayer 41. Similarly, the second electromagnetic valve 121 can control the on / off of the second pipeline 12, thereby realizing the control of the steam supply in the second interlayer 61.
[0033] As an alternative implementation of this embodiment, it further includes a temperature control module and a first temperature sensor 8; the first temperature sensor 8 is arranged in the high-level tank 6, and the temperature control module is electrically connected to the first temperature sensor 8 and the second electromagnetic valve 121 respectively. The temperature of the white oil stored in the high-level tank 6 is detected by the first temperature sensor 8, and the first temperature sensor 8 feeds back the detected temperature to the temperature control module in real time. The temperature control module controls the opening and closing time of the second electromagnetic valve 121 to prevent the white oil in the high-level tank 6 from overheating.
[0034] As an alternative implementation of this embodiment, the first heat exchange device 3 includes a first raw material cylinder 33 and a first heating medium circulation pipeline 34 arranged around the first raw material cylinder 33. The first raw material cylinder 33 has a first raw material inlet 31 and a first raw material outlet 32, and the first heating medium circulation pipeline 34 is connected to the steam generating device 1. The heating medium introduced into the first heating medium circulation pipeline 34 is steam, and the steam exchanges heat with the white oil in the first raw material cylinder 33 and finally outputs in the form of condensed water.
[0035] As an alternative implementation of this embodiment, the second heat exchange device 5 includes a second raw material cylinder 53 and a second heating medium circulation pipeline 54 arranged around the second raw material cylinder 53. The second raw material cylinder 53 has a second raw material inlet 51 and a second raw material outlet 52, and the second heating medium circulation pipeline 54 is connected to the steam generating device 1. The heating medium introduced into the second heating medium circulation pipeline 54 is steam, and the steam exchanges heat with the white oil in the second raw material cylinder 53 and finally outputs in the form of condensed water.
[0036] As an alternative implementation of this embodiment, both the first heat exchange device 3 and the second heat exchange device 5 are tubular heat exchangers.
[0037] As an alternative implementation of this embodiment, the first preset temperature is lower than the second preset temperature. Different first preset temperatures and second preset temperatures can be selected according to the requirements of different working conditions.
[0038] As an optional implementation manner of this embodiment, the first preset temperature is 50°C, and the second preset temperature is 70°C to 110°C.
[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A white oil preheating system, characterized in that, Comprising: A steam generation device for generating steam; A white oil output pipeline for outputting white oil; A first heat exchange device having a first raw material inlet and a first raw material outlet, the first raw material inlet being connected to the white oil output pipeline, the first heat exchange device being configured to heat the white oil to a first preset temperature and output it from the first raw material outlet; A stirring tank connected to the first raw material outlet, the stirring tank being configured to stir the white oil, the tank wall of the stirring tank having a first interlayer, the first interlayer being connected to the steam generation device; A second heat exchange device having a second raw material inlet and a second raw material outlet, the second raw material inlet being connected to the stirring tank, the second heat exchange device being configured to heat the white oil to a second preset temperature and output it from the second raw material outlet; A plurality of high-level tanks, the plurality of high-level tanks being respectively connected to the second raw material outlet, the tank wall of each high-level tank having a second interlayer, the second interlayer being connected to the steam generation device; A plurality of plunger pumps respectively corresponding to and connected to the plurality of high-level tanks for pumping the white oil in the high-level tanks to each lithium-ion battery separator production line.
2. The white oil preheating system according to claim 1, characterized in that A filter is provided on the white oil output pipeline, a first outlet of the filter is connected to the first raw material inlet, and a second outlet of the filter is connected to a white oil collection pit.
3. The white oil preheating system according to claim 1, characterized in that, The steam generation device is connected to the first interlayer through a first pipeline, and the steam generation device is connected to the second interlayer through a second pipeline; a first solenoid valve is provided on the first pipeline, and a second solenoid valve is provided on the second pipeline.
4. The white oil preheating system according to claim 3, wherein It further includes a temperature control module and a first temperature sensor; the first temperature sensor is disposed in the high-level tank, and the temperature control module is electrically connected to the first temperature sensor and the second solenoid valve respectively.
5. The white oil preheating system according to claim 1, wherein, The first heat exchange device includes a first raw material cylinder and a first heating medium circulation pipeline disposed around the first raw material cylinder, the first raw material cylinder having a first raw material inlet and a first raw material outlet, and the first heating medium circulation pipeline being connected to the steam generation device.
6. The white oil preheating system according to claim 1, characterized in that, The second heat exchange device includes a second raw material cylinder and a second heating medium circulation pipeline disposed around the second raw material cylinder, the second raw material cylinder having a second raw material inlet and a second raw material outlet, and the second heating medium circulation pipeline being connected to the steam generation device.
7. The white oil preheating system according to claim 1, characterized in that, Both the first heat exchange device and the second heat exchange device are tubular heat exchangers.
8. The white oil preheating system according to claim 1, wherein, The first preset temperature is lower than the second preset temperature.
9. The white oil preheating system according to claim 8, characterized in that, The first preset temperature is 50°C, and the second preset temperature is 70°C to 110°C.