A liquid return system

Abstract

The utility model belongs to the field of coating processing technology discloses a kind of liquid reflux system.Including upper tank subassembly, reflux collection subassembly, shunt pipe and water tank, upper tank subassembly is communicated with reflux collection subassembly by falling tank, upper tank subassembly is set on the upside of reflux collection subassembly, and shunt pipe is communicated at the downside of reflux collection subassembly, the end of shunt pipe is communicated with water tank, perpendicular to the projection of the placement surface of liquid reflux system, and upper tank subassembly, reflux collection subassembly, shunt pipe and water tank coincide.Solve the problem that liquid flows slowly in the reflux equipment under the prior art, resulting in large temperature difference of liquid, reduce coating effect.

Description

Technical Field

[0001] This utility model relates to the field of coating processing technology, and in particular to a liquid reflux system. Background Technology

[0002] In the production process of traditional coating equipment, the transportation and circulation of high-viscosity liquids is a critical link and also constitutes a significant technical bottleneck. When such liquids flow through the long return pipelines in the equipment, their inherent characteristics of high internal friction and poor fluidity generate enormous flow resistance. This strong resistance not only directly leads to an abnormally slow return speed of the liquid in the pipeline, resulting in low overall circulation efficiency, but also triggers a series of chain reactions and negative effects.

[0003] First, the slow flow means the liquid is in prolonged contact with the pipeline, making it more susceptible to fluctuations in ambient temperature. This can lead to uneven heat transfer or excessive heat loss, making precise control of the liquid's operating temperature extremely difficult. Temperature is a core parameter affecting the rheological properties (such as viscosity and flowability) of high-viscosity liquids. Unstable temperature directly causes fluctuations in the properties of the coating liquid, resulting in uneven coating, scratches, or orange peel texture defects. This severely impairs the uniformity and consistency of the coating film, ultimately reducing the overall quality of the product.

[0004] Secondly, poor circulation and slow reflux also threaten the stability of the production process. It can lead to unstable pressure in the feeding system, causing pulsations in the material output at the coating head, making it impossible to achieve a continuous and stable coating supply. Simultaneously, to overcome significant resistance, the pumping system often needs to operate under continuous high loads, which not only increases additional energy consumption but also exacerbates equipment wear. Furthermore, slow circulation can cause liquid stagnation in certain areas, increasing the risk of sedimentation or premature gelation.

[0005] The high flow resistance caused by long return pipelines in traditional equipment has become a key obstacle restricting the improvement of coating quality and breakthroughs in production efficiency. It not only directly lengthens the production cycle and reduces capacity, but also poses a continuous threat to the quality of the final product by interfering with temperature and cycle stability. Therefore, a new technical solution is urgently needed to optimize the fluid path and reduce flow resistance to improve cycle efficiency and process stability. Utility Model Content

[0006] The purpose of this invention is to provide a liquid reflux system that solves the problem that the liquid flows slowly in the reflux equipment under the existing technology, resulting in a large liquid temperature difference and reduced coating effect.

[0007] To achieve this objective, the present invention adopts the following technical solution: The present invention provides a liquid reflux system, including an upper tank assembly, a reflux collection assembly, a diversion pipe, and a water tank. The upper tank assembly and the reflux collection assembly are connected through a lower trough. The upper tank assembly is disposed on the upper side of the reflux collection assembly. A diversion pipe is connected to the lower side of the reflux collection assembly. The end of the diversion pipe is connected to the water tank. The projection perpendicular to the placement surface of the liquid reflux system is perpendicular to the upper tank assembly, the reflux collection assembly, the diversion pipe, and the water tank.

[0008] Preferably, the upper trough assembly includes a first upper trough body, a second upper trough body, and a third upper trough body; the lower trough includes a first lower trough body, a second lower trough body, and a third lower trough body; the lower side of the first upper trough body is connected to the first lower trough body; the lower side of the second upper trough body is connected to the second lower trough body; the lower side of the third upper trough body is connected to the third lower trough body; and the return collection assembly includes a return main pipe; the first lower trough body, the second lower trough body, and the third lower trough body are connected to the return main pipe.

[0009] Preferably, the main return pipe between the first trough and the second trough is connected to the branch pipe.

[0010] Preferably, the main return pipe between the second trough and the third trough is connected to the branch pipe.

[0011] Preferably, the cross-sectional area of ​​the drop trough is larger than the cross-sectional area of ​​the return main pipe.

[0012] Preferably, the diversion pipe is installed at an angle on the side of the water tank.

[0013] Preferably, the first upper tank and the first lower tank are integrally formed, the second upper tank and the second lower tank are integrally formed, and the third upper tank and the third lower tank are integrally formed.

[0014] Preferably, the return main pipe is connected to the first trough body via a flange.

[0015] Preferably, the return main pipe is connected to both sides of the second trough body via flanges.

[0016] Preferably, the return main pipe is connected to the third trough body via a flange.

[0017] Beneficial effects: By stacking the upper tank assembly, reflux collection assembly, diversion pipe and water tank together, and installing the upper tank assembly, reflux collection assembly, diversion pipe and water tank in sequence from top to bottom, the high viscosity liquid inside falls vertically by gravity, reducing the horizontal movement distance and accelerating the liquid flow speed, thereby improving circulation efficiency and increasing coating stability. Attached Figure Description

[0018] Figure 1 This is the main view of the liquid reflux system of this utility model.

[0019] In the diagram: 1. Upper tank assembly; 11. First upper tank body; 12. Second upper tank body; 13. Third upper tank body; 2. Return collection assembly; 3. Diversion pipe; 4. Water tank; 5. Lower trough; 51. First lower trough body; 52. Second lower trough body; 53. Third lower trough body. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] In the current technology, because the liquid travels a long distance horizontally within the reflux system, the liquid eventually enters the water tank at a slower speed, resulting in a large temperature change in the liquid and ultimately reducing the quality of the coating.

[0025] To solve the above problems, such as Figure 1 As shown, this utility model provides a liquid reflux system, including an upper tank assembly 1, a reflux collection assembly 2, a diversion pipe 3, and a water tank 4. The upper tank assembly 1 and the reflux collection assembly 2 are connected through a lower trough 5. The upper tank assembly 1 is located on the upper side of the reflux collection assembly 2, and the lower side of the reflux collection assembly 2 is connected to the diversion pipe 3. The end of the diversion pipe 3 is connected to the water tank 4. The upper tank assembly 1, the reflux collection assembly 2, the diversion pipe 3, and the water tank 4 overlap perpendicular to the projection of the liquid reflux system's placement surface.

[0026] After entering the upper tank assembly 1, the liquid flows sequentially into the return collection assembly 2, the diversion pipe 3, and the water tank 4 by gravity. Because the upper tank assembly 1, the return collection assembly 2, the diversion pipe 3, and the water tank 4 overlap, the liquid flows vertically, reducing the distance the liquid travels horizontally or obliquely. This increases the speed of the liquid flow, making the return efficiency of the liquid return system higher, and making the temperature difference of the liquid in the liquid return system closer, thus improving the coating quality.

[0027] The upper trough assembly 1 of this utility model includes a first upper trough body 11, a second upper trough body 12 and a third upper trough body 13. The lower trough 5 includes a first lower trough body 51, a second lower trough body 52 and a third lower trough body 53. The lower side of the first upper trough body 11 is connected to the first lower trough body 51, the lower side of the second upper trough body 12 is connected to the second lower trough body 52, and the lower side of the third upper trough body 13 is connected to the third lower trough body 53. The return collection assembly 2 includes a return main pipe, and the first lower trough body 51, the second lower trough body 52 and the third lower trough body 53 are connected to the return main pipe.

[0028] The liquid in the first upper tank 11, the second upper tank 12, and the third upper tank 13 falls directly into the return main pipe through the first upper tank 11, the second upper tank 12, and the third upper tank 13. The liquid flowing by gravity can increase its own movement speed, avoid its own temperature from consuming too quickly, and improve the final coating quality.

[0029] A diversion pipe 3 is connected to the main return pipe between the first drop tank 51 and the second drop tank 52. A diversion pipe 3 is also connected to the main return pipe between the second drop tank 52 and the third drop tank 53. Liquid flows directly into the diversion pipe 3 by gravity. This utility model is equipped with three independent upper tanks, which eventually converge into the two diversion pipes 3 at the bottom. Liquid can be selected to enter different water tanks 4, improving the flexibility of the liquid return system.

[0030] The cross-sectional area of ​​the drop tank 5 is larger than that of the return main pipe, which allows it to accept more liquid, increase the liquid flow rate and volume, avoid excessive temperature difference in the liquid, and improve the coating effect.

[0031] The diversion pipe 3 is installed at an angle on the side of the water tank 4. The liquid is installed on the side of the water tank 4, which can ultimately guide the liquid on the upper side into the water tank 4 to achieve liquid return. The lower half of the diversion pipe 3 is inclined downward to increase the flow rate of liquid return.

[0032] The first upper tank 11 and the first lower tank 51 are integrally formed, the second upper tank 12 and the second lower tank 52 are integrally formed, and the third upper tank 13 and the third lower tank 53 are integrally formed. Integral casting can reduce the number of parts and facilitate docking and assembly. The area of ​​the first lower tank 51, the second lower tank 52 and the third lower tank 53 is close to the area of ​​the first upper tank 11, the second upper tank 12 and the third upper tank 13, which facilitates the direct flow of liquid into the first lower tank 51, the second lower tank 52 and the third lower tank 53, thereby improving the efficiency of reflux.

[0033] The return main pipe of this utility model is connected to the first drop trough body 51 by a flange, the return main pipe is connected to both sides of the second drop trough body 52 by flanges, and the return main pipe is connected to the third drop trough body 53 by a flange. The connection cost can be reduced by the above connection method. Other connection methods can also be used. At the same time, the return collection component 2 and the diversion pipe 3 can be eliminated, and the water tank and water tank 4 can be directly connected. It is suitable for relatively simple coating equipment.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A liquid reflux system, characterized in that, The system includes an upper tank assembly (1), a reflux collection assembly (2), a diversion pipe (3), and a water tank (4). The upper tank assembly (1) and the reflux collection assembly (2) are connected through a lower trough (5). The upper tank assembly (1) is located on the upper side of the reflux collection assembly (2). The lower side of the reflux collection assembly (2) is connected to the diversion pipe (3). The end of the diversion pipe (3) is connected to the water tank (4). The upper tank assembly (1), the reflux collection assembly (2), the diversion pipe (3), and the water tank (4) are overlapped and projected perpendicularly to the placement surface of the liquid reflux system.

2. The liquid reflux system according to claim 1, characterized in that, The upper trough assembly (1) includes a first upper trough body (11), a second upper trough body (12), and a third upper trough body (13). The lower trough (5) includes a first lower trough body (51), a second lower trough body (52), and a third lower trough body (53). The first upper trough body (11) is connected to the lower side of the first lower trough body (51). The second upper trough body (12) is connected to the lower side of the second lower trough body (52). The third upper trough body (13) is connected to the lower side of the third lower trough body (53). The return collection assembly (2) includes a return main pipe. The first lower trough body (51), the second lower trough body (52), and the third lower trough body (53) are connected to the return main pipe.

3. The liquid reflux system according to claim 2, characterized in that, The main return pipe between the first trough body (51) and the second trough body (52) is connected to the branch pipe (3).

4. The liquid reflux system according to claim 2, characterized in that, The main return pipe between the second trough body (52) and the third trough body (53) is connected to the branch pipe (3).

5. The liquid reflux system according to claim 2, characterized in that, The cross-sectional area of ​​the trough (5) is larger than the cross-sectional area of ​​the return main pipe.

6. The liquid reflux system according to claim 1, characterized in that, The diversion pipe (3) is installed at an angle on the side of the water tank (4).

7. The liquid reflux system according to claim 2, characterized in that, The first upper trough (11) and the first lower trough (51) are integrally formed, the second upper trough (12) and the second lower trough (52) are integrally formed, and the third upper trough (13) and the third lower trough (53) are integrally formed.

8. The liquid reflux system according to claim 2, characterized in that, The return main pipe is connected to the first trough body (51) via a flange.

9. The liquid reflux system according to claim 2, characterized in that, The return main pipe is connected to both sides of the second trough body (52) via flanges.

10. The liquid reflux system according to claim 2, characterized in that, The return main pipe is connected to the third trough body (53) via a flange.

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