Liquid material cooling system

Abstract

The utility model relates to a liquid material cooling system. The cooling system comprises a liquid material conveying device and a cooling medium conveying device, the liquid material conveying device comprises a liquid material conveying pipeline, and the liquid material conveying pipeline (4) comprises a U-shaped continuous bending type pipeline (44) which is alternately provided with a straight pipe part (42) and a U-shaped elbow part (43). The cooling medium conveying device comprises an inlet branch pipe (1), an outlet branch pipe (2) and a plurality of cooling pipelines (3) which are arranged between the inlet branch pipe (1) and the outlet branch pipe (2) side by side, a plurality of branch pipe openings (11) are formed in the inlet branch pipe (1) at certain intervals, and a plurality of branch pipe openings (22) are formed in the outlet branch pipe (2) at certain intervals. A first branch pipe opening and a second branch pipe opening are formed near the two ends of the cooling pipeline respectively and surround the straight pipe part of the U-shaped continuous bending type pipeline.

Description

Technical Field

[0001] The utility model relates to a liquid material cooling system. Background Art

[0002] During the production process of liquid materials such as battery electrode slurries, the temperature usually exceeds 50°C and needs to be cooled. The common method is to directly cool the slurry in the slurry barrel with chilled water. However, its disadvantages are that the temperature of the chilled water is too low and the temperature changes greatly, which is unstable. And it is necessary to manually adjust the valve size to control the chilled water flow rate, resulting in very large temperature fluctuations of the slurry in the slurry barrel, directly affecting the viscosity of the slurry and reducing the production efficiency.

[0003] CN209978653U discloses a slurry cooling system, which includes a box body. A chilled water inlet, a slurry inlet, a slurry outlet, and a chilled water outlet are provided on the right side of the box body. The chilled water inlet is located at the uppermost position, followed by the slurry inlet, the slurry outlet in sequence, and the chilled water outlet is located at the bottommost position. A spray pipe is provided on the top of the box body, and holes for water outlet are evenly opened on the spray pipe. A slurry pipe is provided under the spray pipe, and the slurry pipe is cooled by spraying chilled water from the holes of the spray pipe. The controllability of this cooling system is poor, the cooling efficiency is poor, and the cooling time is long.

[0004] CN220103502U discloses a slurry cooling system, which conveys the slurry in the storage tank to the discharge pipeline through a screw conveyor. The slurry enters the return pipeline from the discharge pipeline, and the cooling pipe cools the slurry in the return pipeline, so that the slurry in the storage tank is cooled by the cooling pipe. The cooling area of this cooling system is small, the cooling efficiency is poor, and the cooling time is long.

[0005] In addition, there is also a system for cooling liquids by using a cooling tank in the prior art. When the liquid is transported into the cooling tank, the liquid is shunted by a shunt pipeline. The shunt pipeline is evenly distributed in the cooling tank and spreads in a star shape. The corresponding cooling medium is injected from the upper part of the cooling tank and discharged from the lower part. The flow direction of the cooling medium is the same as the flow direction of the liquid. Such a cooling system occupies a large space, has a long pipeline, and requires a large amount of cooling medium. Since the flow direction of the cooling medium is the same as the flow direction of the liquid in the pipeline, the cooling is insufficient and the cooling efficiency is low. Moreover, it is difficult to disassemble the pipeline of this cooling system, and it is not convenient to clean the cooling pipeline, which cannot meet the current requirements of rapid pipeline replacement and plug-and-play.

[0006] Therefore, there is an urgent need for a liquid material cooling system with good cooling controllability, high cooling efficiency and simple operation, and a liquid material cooling method using this system. Summary of the Utility Model

[0007] In view of the above-mentioned state of the prior art, the inventors of the present utility model considered making a reasonable layout of the pipelines and conveying paths of the liquid material conveying device and the cooling medium conveying device of the liquid material cooling system, increasing the heat exchange area, improving the heat exchange efficiency, and modifying the connection method of the pipe joints to shorten the installation and replacement time of the pipelines.

[0008] The object of the present utility model is to provide a liquid material cooling system with good cooling controllability, high cooling efficiency and simple operation, and a liquid material cooling method using the system.

[0009] In order to achieve the above object of the present utility model, the inventors of the present utility model conducted painstaking research and obtained the following technical solutions.

[0010] (1) A liquid material cooling system, which comprises a liquid material conveying device and a cooling medium conveying device,

[0011] The liquid material conveying device comprises a liquid material conveying pipeline, and the liquid material conveying pipeline comprises a U-shaped continuously bent pipeline alternately having straight pipe parts and U-shaped elbow parts.

[0012] The cooling medium conveying device comprises an inlet manifold, an outlet manifold, and a plurality of cooling pipelines arranged side by side between the inlet manifold and the outlet manifold. A plurality of branch pipe openings are opened on the inlet manifold at a certain interval, a plurality of branch pipe openings are opened on the outlet manifold at a certain interval, first branch pipe openings and second branch pipe openings are respectively opened near both ends of the cooling pipeline, and the cooling pipeline surrounds the straight pipe part of the U-shaped continuously bent pipeline.

[0013] The branch pipe opening of the inlet manifold is communicated with the first branch pipe opening of the corresponding cooling pipeline by a first connecting pipe, and the branch pipe opening of the outlet manifold is communicated with the second branch pipe opening of the corresponding cooling pipeline by a second connecting pipe.

[0014] (2) The liquid material cooling system according to (1) above, wherein the straight pipe part of the U-shaped continuously bent pipeline and the cooling pipeline are parallel, and both the inlet manifold and the outlet manifold are perpendicular to the cooling pipeline.

[0015] (3) The liquid material cooling system according to (1) or (2) above, wherein the shape of the cooling pipeline is the same as that of the straight pipe part of the U-shaped continuously bent pipeline.

[0016] (4) The liquid material cooling system according to (1) or (2) above, wherein the diameter of the cooling pipeline is 1.5 to 2.5 times the diameter of the U-shaped continuously bent pipeline.

[0017] (5) The liquid material cooling system according to (1) or (2) above, wherein the liquid material conveying device and the cooling medium conveying device are configured in such a way that the flow direction of the liquid material in the U-shaped continuously bent pipe is opposite to the flow direction of the cooling medium in the cooling pipe.

[0018] (6) A liquid material cooling method using the liquid material cooling system according to any one of (1) to (5) above, comprising the following steps:

[0019] The liquid material flows into the U-shaped continuously bent pipe from the inlet by the acting force generated by a pump or the head difference of the liquid level, and flows along the U-shaped continuously bent pipe to the outlet;

[0020] The cooling medium flows into the inlet manifold by the acting force generated by a pump or the head difference of the liquid level, and flows into each cooling pipe from each branch port of the inlet manifold; and

[0021] The cooling medium in each cooling pipe flows into the outlet manifold,

[0022] wherein the flow direction of the liquid material in the U-shaped continuously bent pipe is opposite to the flow direction of the cooling medium in the cooling pipe.

[0023] (7) According to the method described in (6) above, wherein the temperature difference between the liquid material at the inlet and the outlet of the U-shaped continuously bent pipe is 20 to 40 °C.

[0024] (8) According to the method described in (6) or (7) above, wherein the temperature difference between the cooling medium at the inlet of the inlet manifold and the outlet of the outlet manifold is 1 to 10 °C.

[0025] (9) According to the method described in (6) or (7) above, wherein the liquid material is a battery electrode active material slurry.

[0026] (10) According to the method described in (6) or (7) above, wherein the cooling medium is water.

[0027] Effect of the utility model

[0028] According to the present utility model, it is possible to provide a liquid material cooling system with good cooling controllability, high cooling efficiency and simple operation, and a liquid material cooling method using the system. Description of the drawings

[0029] Figure 1 is a schematic diagram of an example of the liquid material cooling system according to Embodiment 1 of the present utility model.

[0030] Figure 2 Yes Figure 1 Schematic diagram of the main part of the liquid material cooling system Specific implementation mode

[0031] Hereinafter, the specific implementation modes and embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The described implementation modes and embodiments are merely exemplary and can take various forms. In addition, the drawings disclosed in this specification are generally schematic diagrams. That is, the size ratio on the drawings is not necessarily the same as the actual size ratio, and the size ratio may not be the same among the drawings

[0032] (Embodiment 1)

[0033] The liquid material cooling system of Embodiment 1 of the present utility model includes a liquid material conveying device and a cooling medium conveying device. The liquid material conveying device includes a liquid material conveying pipeline, and the liquid material conveying pipeline includes a U-shaped continuously bent pipeline having straight pipe portions and U-shaped elbow portions alternately. The cooling medium conveying device includes an inlet manifold, an outlet manifold, and a plurality of cooling pipelines arranged side by side between the inlet manifold and the outlet manifold. A plurality of branch ports are opened on the inlet manifold at regular intervals, a plurality of branch ports are opened on the outlet manifold at regular intervals, the cooling pipelines are respectively provided with a first branch port and a second branch port near both ends thereof, and the cooling pipelines surround the straight pipe portions of the U-shaped continuously bent pipeline. The branch port of the inlet manifold is communicated with the first branch port of the corresponding cooling pipeline by a first connecting pipe, and the branch port of the outlet manifold is communicated with the second branch port of the corresponding cooling pipeline by a second connecting pipe

[0034] From the perspective of improving the balance and stability of the configuration structure, preferably, the straight pipe portions of the U-shaped continuously bent pipeline and the cooling pipelines are parallel, and both the inlet manifold and the outlet manifold are perpendicular to the cooling pipelines

[0035] Preferably, the cooling pipeline is a closed pipeline surrounding the straight pipe portion of the U-shaped continuously bent pipeline. Thus, the shape of the cooling pipeline is the same as that of the straight pipe portion, for example, a circular pipe type pipeline, or a square pipe type pipeline. The diameter of the cooling pipeline is, for example, 1.5 to 2.5 times the diameter of the U-shaped continuously bent pipeline, and its specific size can be selected according to the type of the liquid material to be cooled, the temperature difference requirements before and after cooling, etc

[0036] From the aspect of improving the cooling effect and efficiency by increasing the heat exchange area and prolonging the heat exchange time, preferably, the liquid material conveying device and the cooling medium conveying device are configured in such a way that the flow direction of the liquid material in the U-shaped continuously bent pipe is opposite to the flow direction of the cooling medium in the cooling pipe. For this purpose, the container for storing the liquid material before cooling treatment and the container for storing the liquid material after cooling treatment can be arranged in such a way that there is a positive liquid level difference and / or pressure difference between the liquid materials in the two containers, and the inlet manifold and the outlet manifold can be arranged in such a way that there is a positive liquid level difference and / or pressure difference between the cooling media in the two manifolds.

[0037] A pump and a valve can be provided at the inlet of the liquid material conveying device. The pump can provide the conveying power of the liquid material, and the valve can control the conveying speed of the liquid material. A pump and a valve can also be provided in the U-shaped continuously bent pipe, which is more convenient for adjusting the conveying power and conveying speed of the liquid material.

[0038] A pump and a valve can be provided at the inlet of the cooling medium conveying device, or a pump and a valve can be provided in the inlet manifold and / or the outlet manifold, which is more convenient for adjusting the conveying power and conveying speed of the cooling medium.

[0039] The straight pipe part and the U-shaped elbow part of the U-shaped continuously bent pipe can be integrally formed or mechanically assembled. Since the cooling pipe surrounds the straight pipe part, the straight pipe part is equivalent to being directly inserted into the cooling pipe, that is, the cooling pipe is coated on the periphery of the straight pipe part. Preferably, the lengths of adjacent straight pipe parts are equal, which can ensure the balance and stability of the U-shaped continuously bent pipe.

[0040] The branch ports on each pipe fitting preferably have quick-connect interfaces that can be connected to quick-connect joints. When it is necessary to connect to other pipe fittings through the branch port, the above-mentioned quick-connect interface can be used to connect to a connecting pipe with a quick-connect joint. In this way, the efficiency of quick-connecting can be improved, and the operation controllability is good.

[0041] It should be noted that the so-called "the cooling pipe is respectively provided with a first branch port and a second branch port near its two ends" means that the first branch port and the second branch port are respectively relatively close to the two end edges of the cooling pipe, for example, 2-5 cm, and this value can be adjusted and set according to the diameter and length of the cooling pipe, the type of the cooling medium, and the temperature difference requirements before and after cooling, etc.

[0042] In addition, in order to monitor the temperature change in a timely manner and make corresponding adjustments, temperature measuring devices can be respectively arranged at the inlet and outlet of the U-shaped continuously bent pipe, or temperature measuring devices can be respectively arranged at the inlet of the inlet manifold and the outlet of the outlet manifold.

[0043] In order to deal with situations such as pipeline rupture and material leakage, a feeding pipe can be externally connected to the middle part of the inlet manifold, or a discharging pipe can be externally connected to the middle part of the outlet manifold.

[0044] In this embodiment, the liquid material can be various liquid media, such as solvents, solutions, suspensions, solid-liquid mixtures, battery electrode active material slurries, etc. The cooling system of this embodiment can set the parameters of different components according to different liquid materials for cooling.

[0045] The cooling medium can be selected according to the type of the liquid material to be cooled, the temperature difference requirements before and after cooling, and the ease of recycling, etc. For example, it can be water, ice water, brine, various refrigerants, etc.

[0046] Since the cooling system of this embodiment has good controllability, high cooling efficiency and simple operation for cooling liquid materials, it is preferably applicable to cooling battery electrode active material slurries. For example, it can be applicable to cooling the positive or negative electrode active material slurries of secondary batteries such as lithium secondary batteries and nickel-metal hydride secondary batteries.

[0047] In this embodiment, the material of the U-shaped continuously bent pipe is not particularly limited, as long as it can meet the requirements of liquid material transportation and withstand the transportation temperature. For example, it is a metal pipe such as stainless steel. The materials of the inlet manifold, the outlet manifold and the cooling pipe can be the same or different, and this material is not particularly limited, as long as it can meet the requirements of cooling medium transportation and withstand the transportation temperature and can be connected and fixed in a suitable way to ensure the sealing performance. For example, it is a metal pipe such as stainless steel. The first connecting pipe and the second connecting pipe can be plastic hoses or metal hoses, and their materials are not particularly limited, as long as they can meet the requirements of cooling medium transportation and withstand the transportation temperature and can be connected and fixed in a suitable way to ensure the sealing performance.

[0048] Figure 1 It is a schematic diagram of an example of the liquid material cooling system of Embodiment 1. Figure 2 is Figure 1 a schematic diagram of the main part of the liquid material cooling system.

[0049] As Figure 1As shown in the figure, the liquid material cooling system includes a liquid material conveying device and a cooling medium conveying device. The liquid material conveying device includes a container 50 for storing liquid material before cooling treatment, a container 60 for storing liquid material after cooling treatment, and a liquid material conveying pipeline 4. The liquid material conveying pipeline 4 includes a U-shaped continuously bent pipeline 44 that alternately has straight pipe sections 42 and U-shaped elbow sections 43. The inlet side and the outlet side of the liquid material conveying pipeline 4 are respectively communicated with the container 50 for storing liquid material before cooling treatment and the container 60 for storing liquid material after cooling treatment. The cooling medium conveying device includes an inlet manifold 1, an outlet manifold 2, and a plurality of cooling pipelines 3 arranged side by side between the inlet manifold 1 and the outlet manifold 2. As Figure 2 As shown in the figure, a plurality of branch ports 11 are opened on the inlet manifold 1 at certain intervals, a plurality of branch ports 22 are opened on the outlet manifold 2 at certain intervals, the cooling pipeline 3 is respectively provided with a first branch port 13 and a second branch port 14 near both ends thereof, and the cooling pipeline 3 surrounds the straight pipe section 42. The branch port 11 of the inlet manifold 1 is communicated with the first branch port 13 of the corresponding cooling pipeline 3 by a first connecting pipe 31, and the branch port 22 of the outlet manifold 2 is communicated with the second branch port 14 of the corresponding cooling pipeline 3 by a second connecting pipe 32.

[0050] As Figure 1 As shown in the figure, the liquid material 100 flows into the U-shaped continuously bent pipeline 44 from the inlet via the liquid material conveying pipeline 4 by the acting force generated by the pump 30 and / or the head difference of the liquid level, and flows along the U-shaped continuously bent pipeline to the outlet and reaches the container 60 for storing liquid material after cooling treatment. The cooling medium 200 in the cooling medium container 45 flows into the inlet manifold 1 by the acting force generated by the pump 40 and / or the head difference of the liquid level, and flows into each cooling pipeline 3 from each branch port 11 of the inlet manifold 1. The cooling medium in each cooling pipeline 3 flows into the outlet manifold 4 and circulates back to the cooling medium container 45. Moreover, both the U-shaped continuously bent pipeline and the cooling pipeline are closed pipelines, and the liquid material and the cooling medium do not flow together, so there is no liquid intercommunication between the liquid material conveying pipeline and the cooling medium conveying pipeline. Through such a structural configuration, the flow direction of the liquid material in the U-shaped continuously bent pipeline is opposite to the flow direction of the cooling medium in the cooling pipeline. As Figure 2 shown in the figure, the cooling medium flows in along the arrow ① direction and flows out along the arrow ② direction, while the liquid material flows in along the arrow ③ direction and flows out along the arrow ④ direction. Therefore, the flow direction of the liquid material in the U-shaped continuously bent pipeline is opposite to the flow direction of the cooling medium in the cooling pipeline.

[0051] As Figure 2As shown, preferably, the multiple branch ports 11 of the inlet manifold 1 are evenly distributed among each other, the multiple branch ports 22 of each of the outlet manifolds 2 are evenly distributed among each other, and the branch port layouts of the inlet manifold 1 and the outlet manifolds 2 are the same.

[0052] As Figure 1 and Figure 2 As shown in and, in the liquid material conveying device, the inlet side and the outlet side of the U-shaped continuously bent pipe, which alternately has a straight pipe portion and a U-shaped elbow portion, are respectively connected to the container for storing liquid material before cooling treatment and the container for storing liquid material after cooling treatment. In the cooling medium conveying device, the first branch ports and the second branch ports near both ends (for example, at a distance of 2 to 5 cm from the end edge) of the multiple cooling pipes arranged side by side are respectively connected to the inlet manifold and the outlet manifold, and this connection can be made via a branch joint using a hose (such as a plastic or metal hose). And preferably, the first branch ports of the multiple cooling pipes arranged side by side are arranged in a straight line and are substantially parallel to the inlet manifold, and the second branch ports of the multiple cooling pipes arranged side by side are arranged in a straight line and are substantially parallel to the outlet manifold. With such a structural configuration, the configuration space of the entire system can be saved, and the balance and stability of the configuration structure can be improved.

[0053] As Figure 2 As shown in, preferably, the straight pipe portion 42 of the U-shaped continuously bent pipe 44 and the cooling pipe 3 are parallel, and both the inlet manifold 1 and the outlet manifolds 2 are perpendicular to the cooling pipe 3. With such a structural configuration, the configuration space of the entire system can be saved, and the balance and stability of the configuration structure can be improved.

[0054] (Embodiment 2)

[0055] This embodiment is a liquid material cooling method using the liquid material cooling system of the above-mentioned Embodiment 1, and it includes the following steps: The liquid material flows into the U-shaped continuously bent pipe from the inlet by the acting force generated by a pump or the head difference of the liquid level, and flows along the U-shaped continuously bent pipe to the outlet; the cooling medium flows into the inlet manifold by the acting force generated by a pump or the head difference of the liquid level, and flows into each cooling pipe from each branch port of the inlet manifold; and the cooling medium in each cooling pipe flows into the outlet manifold, wherein the flow direction of the liquid material in the U-shaped continuously bent pipe is opposite to the flow direction of the cooling medium in the cooling pipe.

[0056] Since the material flow directions in the U-shaped continuously bent pipe and the cooling pipe are opposite, the heat exchange area can be increased, the heat exchange time can be extended, thereby improving the cooling effect and efficiency. The temperature difference between the liquid material at the inlet and the outlet of the U-shaped continuously bent pipe can be 20 to 40 °C, and the temperature difference between the cooling medium at the inlet of the inlet manifold and the outlet of the outlet manifold can be 1 to 10 °C.

[0057] In this embodiment, the liquid material can be various liquid media, such as solvents, solutions, suspensions, solid-liquid mixtures, battery electrode active material slurries, etc. Since the cooling system of this embodiment has good controllability for cooling the liquid material, high cooling efficiency and simple operation, it is preferably applicable to cooling battery electrode active material slurries. For example, it can be applicable to cooling the positive or negative electrode active material slurries of secondary batteries such as lithium secondary batteries and nickel-metal hydride secondary batteries.

[0058] The cooling medium can be selected according to the type of the liquid material to be cooled, the temperature difference requirements before and after cooling, and the ease of recycling, etc. For example, it can be water, ice water, brine, alkaline water, various refrigerants, etc.

[0059] The thermal conductivity and heat capacity of the cooling medium are respectively higher than those of the liquid material. After the cooling treatment is completed, the temperature of the liquid material drops significantly, while the temperature of the cooling medium only rises slightly.

[0060] The U-shaped continuously bent pipe and the cooling pipe form a cooling mechanism, but the U-shaped elbow part of the U-shaped continuously bent pipe is not directly cooled.

[0061] Pumps and valves can be provided in the U-shaped continuously bent pipe to facilitate the adjustment of the conveying power and speed of the liquid material. Pumps and valves can be provided in the inlet manifold and / or the outlet manifold to facilitate the adjustment of the conveying power and speed of the cooling medium.

[0062] As Figure 1 shown, the liquid material 100 flows into the U-shaped continuously bent pipe 44 from the inlet via the liquid material conveying pipe 4 by the acting force generated by the pump 30 and / or the level difference of the liquid surface height, and flows along the U-shaped continuously bent pipe to the outlet and reaches the container 60 for storing the cooled liquid material. The cooling medium 200 in the cooling medium container 45 flows into the inlet manifold 1 by the acting force generated by the pump 40 and / or the level difference of the liquid surface height, and flows into each cooling pipe 3 from each branch port of the inlet manifold. The cooling medium in each cooling pipe 3 flows into the outlet manifold 4 and circulates back to the cooling medium container 45.

[0063] As Figure 2As shown, the flow direction of the liquid material in the U-shaped continuously bent pipe is opposite to the flow direction of the cooling medium in the cooling pipe. Specifically, the cooling medium flows in along arrow ① and out along arrow ②, while the liquid material flows in along arrow ③ and out along arrow ④.

[0064] For the cooling system of this embodiment, high cooling efficiency can be achieved. For example, the temperature of the liquid material at the inlet is 50°C, and at the outlet is 20°C, while the temperature of the cooling medium used at the inlet is 3°C and at the outlet is 5°C.

[0065] (Example 1)

[0066] In Example 1, Figure 1 and Figure 2 an example of the liquid material cooling system shown is used to cool the liquid material. The liquid material is a 50°C battery electrode active material slurry, and its specific composition is: by weight ratio, nickel cobalt lithium oxide is 80 ± 5%, conductive agent is 0.5% ± 0.5%, PVDF is 0.5% ± 0.5%, and NMP is 20 ± 5%. The cooling medium is water at 3°C.

[0067] The inlet manifold is a stainless steel pipe with multiple branch ports opened at the top. The pipe diameter is 76 mm, and it contains 3°C cooling water. The multiple branch ports are evenly distributed, and the interval between adjacent branch ports is about 115 mm. The outlet of the branch port is a 25-mm quick connection interface. Such a quick connection interface is connected to the quick connection interface of the first branch port of the cooling pipe using a 25-mm diameter metal hose.

[0068] The outlet manifold is a stainless steel pipe with multiple branch ports opened at the top. The pipe diameter is 99 mm, and the multiple branch ports are evenly distributed. The interval between adjacent branch ports is about 115 mm. The outlet of the branch port is a 25-mm quick connection interface. Such a quick connection interface is connected to the quick connection interface of the second branch port of the cooling pipe using a 25-mm diameter metal hose.

[0069] The cooling pipe is a stainless steel pipe with a first branch port and a second branch port opened near both ends. The pipe diameter is 50 mm, and the outlet of the branch port is a 25-mm quick connection interface. Such quick connection interfaces are respectively connected to the quick connection interfaces of the corresponding branch ports of the inlet manifold and the outlet manifold using 25-mm diameter metal hoses.

[0070] The first branch ports of the multiple cooling pipes arranged side by side are arranged in a straight line and are parallel to the inlet manifold, and the second branch ports of the multiple cooling pipes arranged side by side are arranged in a straight line and are parallel to the outlet manifold.

[0071] The diameter of the U-shaped continuously bent pipe is 25 mm. The straight pipe part and the U-shaped elbow part are mechanically assembled. The straight pipe part is directly inserted into the cooling pipe, that is, the cooling pipe is wrapped around the periphery of the straight pipe part, and the lengths of adjacent straight pipe parts are equal.

[0072] As Figure 2 shown, the 3°C cooling water used as the cooling medium flows into the inlet manifold along the arrow ① direction. The 50°C battery electrode active material slurry (nickel cobalt lithium oxide 80±5%, conductive agent 0.5%±0.5%, PVDF 0.5%±0.5%, NMP 20±5%) flows into the U-shaped continuously bent pipe along the arrow ③. After the cooling treatment is completed, the cooling water flows out along the arrow ② direction, and the above-mentioned slurry flows out along the arrow ④ direction. As a result of temperature detection, the temperature of the above-mentioned slurry after the cooling treatment drops from 50°C to 20°C, and the temperature of the cooling water after the cooling treatment rises from 3°C to 5°C.

[0073] (Example 2)

[0074] In Example 2, Figure 1 and Figure 2 another example of the liquid material cooling system shown is used to cool the liquid material. The liquid material is 50°C refrigerant R134a, and the cooling medium is 30°C water.

[0075] The inlet manifold is a stainless steel pipe with multiple branch ports opened at the top. The diameter of this pipe is 200 mm (about 8 inches), and it contains 30°C cooling water. The multiple branch ports are evenly distributed, and the interval between adjacent branch ports is about 150 mm. The outlet of the branch port is an interface with a British standard 3 / 4 tapered pipe thread. Such a threaded interface uses a metal pipe with a diameter of 19.05 mm (i.e., 0.75 inches), and cooperates with the corresponding pipe mouth nut to connect with the quick-connect interface of the first branch port of the cooling pipe.

[0076] The outlet manifold is a stainless steel pipe with multiple branch ports opened at the top. The diameter of this pipe is 200 mm (about 8 inches), and the multiple branch ports are evenly distributed. The interval between adjacent branch ports is about 150 mm. The outlet of the branch port is an interface with a British standard 3 / 4 tapered pipe thread. Such a threaded interface uses a metal pipe with a diameter of 19.05 mm (i.e., 0.75 inches), and cooperates with the corresponding pipe mouth nut to connect with the quick-connect interface of the second branch port of the cooling pipe.

[0077] The cooling pipe is a stainless-steel pipe with a first branch pipe opening and a second branch pipe opening near both ends. The diameter of this pipe is 100 mm (about 4 inches), and the outlet of the branch pipe opening is an interface with a British standard 1 / 2 tapered pipe thread. Such a threaded interface corresponds to a metal pipe with a diameter of 12.7 mm (i.e., 0.5 inches). With corresponding pipe mouth nuts, such quick-connect interfaces are respectively connected to the quick-connect interfaces of the corresponding branch pipe openings of the inlet manifold and the outlet manifold using hoses with a diameter of 25 mm.

[0078] The first branch pipe openings of multiple cooling pipes arranged side by side are arranged in a straight line and are parallel to the inlet manifold, and the second branch pipe openings of multiple cooling pipes arranged side by side are arranged in a straight line and are parallel to the outlet manifold.

[0079] The diameter of the U-shaped continuously bent pipe is 76.2 mm (about 3 inches). The straight pipe part and the U-shaped elbow part are mechanically assembled. The straight pipe part is directly inserted into the cooling pipe, that is, the cooling pipe is wrapped around the periphery of the straight pipe part, and the lengths of adjacent straight pipe parts are equal.

[0080] As Figure 2 shown, the 30°C cooling water used as the cooling medium flows into the inlet manifold along the arrow ① direction, and the 50°C refrigerant R134a flows into the U-shaped continuously bent pipe along the arrow ③ direction. After the cooling treatment is completed, the cooling water flows out along the arrow ② direction, and the refrigerant R134a flows out along the arrow ④ direction. As a result of temperature detection, the temperature of the refrigerant R134a after the cooling treatment drops from 50°C to 40°C, and the temperature of the cooling water after the cooling treatment rises from 30°C to 38°C.

[0081] In summary, the liquid material cooling system and the cooling method of the present utility model can make full use of the cooling effect of the cooling medium, have good cooling controllability, high cooling efficiency, simple replacement of the corresponding sockets, plug-and-play, and simple operation.

[0082] In addition, the liquid material cooling system of the present utility model can also be used as a heat preservation conveying system for specific fluid media, a liquid nitrogen step-by-step heating and gasification system, etc., so that the heat exchange mechanism of the liquid material cooling system of the present utility model can also be advantageously utilized.

[0083] The embodiments of the present utility model described above are only specific examples when implementing the present utility model, and they cannot be used to limit and interpret the technical scope of the present utility model. That is, the present utility model can be implemented in various forms without exceeding its technical concept or its main features.

[0084] Industrial Applicability

[0085] The utility model can provide a liquid material cooling system with good cooling controllability, high cooling efficiency and simple operation, and a liquid material cooling method using the system.

Claims

1. A liquid material cooling system, which comprises a liquid material conveying device and a cooling medium conveying device. The liquid material conveying device comprises a liquid material conveying pipeline, and the liquid material conveying pipeline comprises a U-shaped continuously bent pipeline having straight pipe portions and U-shaped elbow portions alternately. The cooling medium conveying device comprises an inlet manifold, an outlet manifold, and a plurality of cooling pipelines arranged side by side between the inlet manifold and the outlet manifold. A plurality of branch pipe openings are formed in the inlet manifold at a certain interval, and a plurality of branch pipe openings are formed in the outlet manifold at a certain interval. First branch pipe openings and second branch pipe openings are respectively formed near both ends of the cooling pipeline, and the cooling pipeline surrounds the straight pipe portion of the U-shaped continuously bent pipeline. The branch pipe opening of the inlet manifold is communicated with the first branch pipe opening of the corresponding cooling pipeline by a first connecting pipe, and the branch pipe opening of the outlet manifold is communicated with the second branch pipe opening of the corresponding cooling pipeline by a second connecting pipe.

2. The liquid material cooling system according to claim 1, wherein The straight pipe portion of the U-shaped continuously bent pipeline and the cooling pipeline are parallel, and both the inlet manifold and the outlet manifold are perpendicular to the cooling pipeline.

3. The liquid material cooling system according to claim 1 or 2, wherein, The cooling pipeline has the same shape as the straight pipe portion of the U-shaped continuously bent pipeline.

4. The liquid material cooling system according to claim 1 or 2, wherein, The diameter of the cooling pipeline is 1.5 to 2.5 times the diameter of the U-shaped continuously bent pipeline.

5. The liquid material cooling system according to claim 1 or 2, wherein, The liquid material conveying device and the cooling medium conveying device are configured in the following manner: the flow direction of the liquid material in the U-shaped continuously bent pipeline is opposite to the flow direction of the cooling medium in the cooling pipeline.

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