Intelligent self-circulation cooling hydraulic power oil tank

Abstract

The intelligent self-circulation cooling hydraulic power oil tank comprises an oil tank body and a cooling assembly, the interior of the oil tank body is divided into a cooling cavity and a backflow cavity in a left-right mode through a partition plate, the cooling cavity is communicated with one end of the backflow cavity, and an oil return opening and an oil suction opening are formed above the other end of the cooling cavity and the other end of the backflow cavity respectively; a plurality of partition plates are sequentially arranged in the cooling cavity, and the interior of the cooling cavity is sequentially divided into a plurality of cavities by the partition plates; the bottom end of the oil tank is inclined, so that the space of the cavity is gradually reduced from one end of the oil return port of the oil tank to the other end of the oil tank; the cooling assembly penetrates through each cavity; the cooling assembly comprises a heat exchange copper pipe and a heat exchange shell, the heat exchange shell is composed of two heat exchange plates oppositely arranged left and right and a plurality of heat exchange fins longitudinally arranged on the surfaces of one sides of the heat exchange plates, a gap channel is formed between every two adjacent heat exchange fins, and the heat exchange copper pipe is embedded between the two heat exchange plates; a built-in cooling assembly structure is adopted, the equipment size can be greatly reduced, the installation space is remarkably saved, due to the height difference, hydraulic oil in all the cavities is conveyed in the same direction, the stable flow direction is formed, heat transfer and heat exchange in a convection mode are formed with the cooling pipes, and the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil tank cooling technology, and in particular to an intelligent self-circulating cooling hydraulic power oil tank. Background Technology

[0002] Cooling hydraulic equipment is a crucial technical aspect that must be considered, and its heat dissipation structure or components are indispensable components of the equipment. The cooling effect of the hydraulic system directly affects the working performance and reliability of the equipment, so scientific and effective cooling measures are required. Currently, the most effective cooling methods for hydraulic equipment mainly revolve around the cooling of hydraulic oil, specifically including the following common and effective technical solutions: (1) Install an air radiator on the return oil line. Utilize the principle of air convection to increase the heat dissipation area through heat sinks to achieve cooling of the hydraulic oil. However, it requires a certain amount of installation space, and the heat dissipation effect is greatly affected by the ambient temperature. (2) Install a water cooler on the return oil path. Utilize the principle of heat exchange to achieve cooling through heat exchange between cooling water and hydraulic oil. However, it requires an additional complete cooling device (such as a cooling tower, water pump, etc.), increasing the complexity of the system and the floor space required. (3) Expand the capacity of the oil tank to increase the calorific value volume. Increase the system's heat capacity by increasing the storage capacity of hydraulic oil, thereby reducing the rate of oil temperature rise. Although simple to implement, it leads to increased equipment size and cost, and has limited improvement in cooling effect.

[0003] While the aforementioned traditional cooling methods each have their own characteristics, they generally suffer from limitations such as large space requirements and system complexity. Even relatively small air radiators require significant installation space, while water cooling systems necessitate additional cooling devices, further increasing the equipment's footprint. Therefore, achieving efficient cooling within limited space has become a pressing technical challenge in the design of hydraulic equipment. Utility Model Content

[0004] This invention addresses the aforementioned problems by disclosing an intelligent self-circulating cooling hydraulic power oil tank, solving the issues of large space occupation and complex systems in hydraulic equipment cooling devices. This solution should be able to replace various existing cooling methods, is applicable to all models of hydraulic equipment, achieves efficient cooling of hydraulic oil while minimizing oil consumption, and precisely controls heat dissipation, thereby ensuring stable overall equipment temperature.

[0005] The specific technical solution is as follows:

[0006] An intelligent self-circulating cooling hydraulic power oil tank includes an oil tank and a cooling assembly. The oil tank is divided into a cooling chamber and a return chamber by partitions on both sides. One end of the cooling chamber and the return chamber are interconnected. Above the other end of each chamber are a return port and a suction port, respectively. The return port and suction port are connected to an external circulating oil pump via pipelines, which circulates the medium within the oil tank. Several partitions are arranged longitudinally within the cooling chamber, dividing it into several compartments. The bottom of the oil tank is inclined, allowing... The size of the several chambers gradually decreases from one end of the oil tank return port to the other end of the oil tank; the cooling assembly is set in the oil tank and horizontally penetrates each partition plate, so that the cooling assembly penetrates each chamber; the cooling assembly includes heat exchange copper tubes and heat exchange shells. The heat exchange shells consist of two heat exchange plates arranged opposite each other and several heat exchange fins arranged longitudinally on one side surface of the heat exchange plates. A gap channel is formed between adjacent heat exchange fins. The heat exchange copper tubes are embedded between the two heat exchange plates. The two ends of the heat exchange copper tubes extend to the outside of the oil tank and are connected to an external compressor.

[0007] Hydraulic oil is drawn from the oil tank's suction port by a circulating oil pump and delivered to the equipment's cylinder to perform work. Afterward, it returns to the leftmost chamber of the oil tank through the return port, and travels through the gaps between the heat exchange fins inside the oil tank to the rightmost chamber. During this process, the hydraulic oil fully contacts the heat exchange fins to exchange heat and complete the cooling process.

[0008] Because the throughput of the slit channel is much smaller than the equivalent amount of hydraulic oil returning to the tank, a height difference will form between the hydraulic oil levels in each chamber. The hydraulic oil's own pressure will accelerate the flow of hydraulic oil from the left chamber to the adjacent right chamber. Also due to the height difference, the hydraulic oil in each chamber will only flow in the same direction. At this point, the hydraulic oil forms a stable flow direction, creating convective heat transfer and exchange with the cooling components, further accelerating the cooling of the hydraulic oil itself.

[0009] The cooling and circulation of the refrigerant in the heat exchange copper tubes is accomplished by the compressor, which integrates a temperature regulation and temperature monitoring assembly to achieve intelligent control.

[0010] Preferably, each of the partition plates has an installation port for the cooling component to pass through, and the size and shape of each installation port are adapted to the size and shape of the cooling component.

[0011] Preferably, each of the partition plates has an equally spaced clearance between its lower end and the bottom of the oil tank for waste removal.

[0012] Preferably, the top of the oil tank is equipped with a vent valve.

[0013] Preferably, grooved channels are formed on the adjacent surfaces of the two heat exchange plates, and the two grooved channels are fitted together and attached to the heat exchange copper tube. The grooved channels are distributed in an S-shape.

[0014] Preferably, the end of the cooling assembly near the return port is fixed to the inner wall of the cooling chamber by two left and right distributed support seats.

[0015] Preferably, a gap is left between the two sides of the cooling component and the inner walls of the two sides of the cooling cavity.

[0016] The beneficial effects of this utility model are reflected in:

[0017] (1) The built-in cooling component structure can significantly reduce the size of the equipment, save installation space, and provide more flexibility for the layout of other key components.

[0018] (2) Due to the different sizes of the chambers, there is a height difference in the hydraulic oil in each chamber, which causes the hydraulic oil in each chamber to be transported in the same direction, forming a stable flow direction, thereby forming a convection heat transfer and heat exchange with the cooling pipe, which improves the cooling efficiency.

[0019] (3) Compared with traditional air-cooled and water-cooled systems, this equipment has significant advantages: First, it completely eliminates the risk of equipment downtime due to pipe rupture; second, its closed design effectively avoids the impact of external factors such as dust accumulation and scale formation on cooling efficiency. In addition, the maintenance process of this equipment is simple, which can significantly reduce operation and maintenance costs.

[0020] (4) The cooling components have flexible and diverse specifications and can be customized according to actual needs. At the same time, their assembly and maintenance processes are simple and efficient, which greatly shortens the equipment installation and maintenance time and improves the overall operating efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the internal structure of the fuel tank of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal side structure of the fuel tank of this utility model.

[0023] Figure 3 This is a view showing the internal structure of the fuel tank of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure between the partition plate and the heat dissipation component in this utility model.

[0025] Explanation of reference numerals in the attached drawings: oil tank 1, partition plate 11, dividing plate 12, mounting port 121, waste discharge gap 122, cooling chamber 101, return chamber 102, oil return port 2, oil suction port 3, cooling assembly 4, heat exchange copper tube 41, heat exchange plate 42, grooved channel 421, heat exchange fins 43, gap channel 431, heat exchange shell 44. Detailed Implementation

[0026] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model falls within the protection scope of this utility model. The fixed connections and fixed settings mentioned in this utility model are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Please see the appendix Figure 1-4 This embodiment provides an intelligent self-circulating cooling hydraulic power tank 1, including a tank 1 and a cooling assembly 4. The tank 1 is divided into a cooling chamber 101 and a return chamber 102 by partition plates 11, allowing the right ends of the cooling chamber 101 and the return chamber 102 to communicate with each other. A return port 2 and a suction port 3 are respectively located above the left ends of the cooling chamber 101 and the return chamber 102. The return port 2 and the suction port 3 are connected to an external circulation pump via pipelines, driving the hydraulic oil medium in the tank 1 to circulate. Four partition plates 12 are arranged longitudinally in the cooling chamber 101, dividing it into four large chambers and one small chamber. One side of the small chamber communicates with the return chamber 102. The bottom of the tank 1 is inclined, and the size of the five chambers gradually decreases from the return port 2 end towards the other end of the tank.

[0029] The cooling assembly 4 is installed in the oil tank 1 and horizontally penetrates each partition plate 12, so that the cooling assembly 4 penetrates each chamber and is fixed by the partition plate 12. The cooling assembly 4 includes a heat exchange copper tube 41 and a heat exchange shell 44. The heat exchange shell 44 is composed of two heat exchange plates 42 arranged opposite each other and a number of heat exchange fins 43 arranged longitudinally on one side surface of the heat exchange plates 42. A gap channel 431 is formed between adjacent heat exchange fins 43. A groove channel 421 for accommodating the heat exchange copper tube 41 is opened on the adjacent side surface of the two heat exchange plates 42. The two groove channels 421 are matched and fitted to the heat exchange copper tube 41. The groove channels 421 are S-shaped. The heat exchange copper tube 41 is embedded between the two heat exchange plates 42. The two ends of the heat exchange copper tube 41 extend to the outside of the oil tank 1 and are connected to the external compressor.

[0030] Hydraulic oil is drawn from the oil inlet 3 of the oil tank 1 by the oil pump and delivered to the oil cylinder of the equipment to do work. Then it returns to the leftmost chamber of the oil tank through the return port 2. It travels to the right chamber of the oil tank through the gap between the heat exchange fins 43 in the oil tank. During this period, the hydraulic oil comes into full contact with the cooling components 4 to exchange heat and complete the cooling.

[0031] This invention's internal tank layout allows the hydraulic oil to return to the tank after performing its work. Because the throughput of all the gaps and channels is much smaller than the equivalent amount of hydraulic oil returning to tank 1, a height difference will form between the hydraulic oil levels in each chamber. The hydraulic oil's own pressure will accelerate the flow of hydraulic oil from the left chamber to the adjacent right chamber. Also due to the height difference, the hydraulic oil in each chamber will only flow in the same direction. This creates a stable flow direction, facilitating convection heat transfer and exchange with the cooling pipes, further accelerating the cooling of the hydraulic oil itself.

[0032] In this embodiment, the overall longitudinal cross-section of the cooling component 4 is rectangular or circular. Each partition plate 12 has an installation port 121 for the cooling component 4 to pass through. The size and shape of each installation port 121 are adapted to the size and shape of the cooling component 4, so that the shape and structure of the cooling component 4 determines the shape of the installation port.

[0033] In this embodiment, each partition plate 12 has an equally spaced impurity discharge gap 122 between its lower end and the bottom end of the oil tank 1, so that when impurities in the hydraulic oil settle, they can move downward through the impurity discharge gap 122 and concentrate at the bottom left end of the oil tank 1 for easy cleaning.

[0034] In this embodiment, a vent valve is provided on the top of the oil tank 1 to ensure that the internal and external air pressures are balanced when the hydraulic oil medium is drawn in.

[0035] In this embodiment, the end of the cooling assembly 4 near the return port is fixed to the inner wall of the cooling chamber 101 by two left and right distributed support seats, and there is a gap between the two sides of the cooling assembly 4 and the inner walls of the two sides of the cooling chamber 101, so that the hydraulic oil medium can enter the gap channel 431 between the heat exchange fins 43 from both sides, thereby flowing to the other end of the oil tank 1 and entering each chamber in sequence. During this period, the hydraulic oil can fully contact the heat exchange fins 43 to exchange heat and complete the cooling.

[0036] The interior of the oil tank is divided into a corridor structure by a partition plate 11, and the cooling chamber 101 is divided into multiple sections. The division of each chamber is different. The oil return port 2 and the oil suction port 3 are located at opposite ends of the space, which forces the oil to come into contact with the heat dissipation components over a large area and cools it down.

[0037] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An intelligent self-circulating cooling hydraulic power oil tank, characterized in that, The system includes an oil tank (1) and a cooling assembly (4). The oil tank (1) is divided into a cooling chamber (101) and a return chamber (102) by a partition plate (11). One end of the cooling chamber (101) and the return chamber (102) are connected to each other. The other end of the cooling chamber (101) and the return chamber (102) are respectively provided with an oil return port (2) and an oil suction port (3). The oil return port (2) and the oil suction port (3) are connected to an external circulating oil pump through pipelines and drive the medium in the oil tank (1) to circulate. Several partition plates (12) are arranged longitudinally in the cooling chamber (101), and the several partition plates (12) divide the cooling chamber (101) into several chambers. The bottom of the oil tank (1) is inclined, so that the several chambers are arranged in a certain way. The size of the chamber gradually decreases from one end of the oil tank (1) return port (2) to the other end of the oil tank (1); the cooling assembly (4) is set in the oil tank (1) and horizontally penetrates each partition plate (12), so that the cooling assembly (4) penetrates each chamber; the cooling assembly (4) includes a heat exchange copper tube (41) and a heat exchange shell (44). The heat exchange shell (44) is composed of two heat exchange plates (42) arranged opposite each other and several heat exchange fins (43) arranged longitudinally on one side of the heat exchange plate (42). A gap channel (431) is formed between adjacent heat exchange fins (43). The heat exchange copper tube (41) is embedded between the two heat exchange plates (42). The two ends of the heat exchange copper tube (41) extend to the outside of the oil tank (1) and are connected to the external compressor.

2. The intelligent self-circulating cooling hydraulic power oil tank of claim 1, wherein, Each of the partition plates (12) is provided with an installation port (121) for the cooling assembly (4) to pass through, and the size and shape of each installation port (121) are adapted to the size and shape of the cooling assembly (4).

3. The intelligent self-circulating cooling hydraulic power oil tank of claim 1, wherein, Each of the partition plates (12) has an equally spaced waste removal gap (122) between its lower end and the bottom of the oil tank (1).

4. The intelligent self-circulating cooling hydraulic power oil tank of claim 1, wherein, The oil tank (1) is equipped with a vent valve on its top.

5. The intelligent self-circulating cooling hydraulic power oil tank of claim 1, wherein, Each of the two heat exchange plates (42) has a groove channel (421) on an adjacent side surface. The two groove channels (421) are matched and attached to the heat exchange copper tube (41). The groove channels (421) are distributed in an S-shape.

6. The intelligent self-circulating cooling hydraulic power oil tank of claim 1, wherein, The cooling component (4) is fixed to the inner wall of the cooling chamber (101) by two left and right distributed support seats at one end near the return port.

7. The intelligent self-circulating cooling hydraulic power oil tank of claim 6, wherein, There is a gap between the two sides of the cooling component (4) and the two sides of the inner wall of the cooling cavity (101).

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