Water-cooled oil tank device

Abstract

The utility model relates to a water cooling type oil tank device. Including the water tank of outside and the oil tank of inside, the top of water tank is open, has the water cooling space of containing cooling water between water tank and oil tank, be equipped with the oil inlet on the top wall of oil tank, be equipped with the oil drain pipe in the bottom of side portion, the oil drain pipe passes through the side wall of water tank and with the inner chamber of oil tank through, be equipped with cooling water inlet pipe in the bottom of side portion, cooling water inlet pipe with water cooling space through, be equipped with cooling water overflow pipe in the top of side portion of another side, cooling water overflow pipe with water cooling space through, install a plurality of top oil pump on the top of oil tank, the inlet of each top oil pump is installed top inlet oil pipe, top inlet oil pipe passes through the top wall of oil tank and extends to the inner chamber bottom of oil tank lower extreme, still include a plurality of valve body, the oil inlet of each valve body is connected with the oil outlet of each top oil pump through oil pipe. The utility model provides a water cooling type oil tank device, whole simple structure and easy to maintain, and cooling energy consumption is low.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic equipment technology, and in particular relates to a water-cooled oil tank device. Background Technology

[0002] The hydraulic oil tank is a crucial component of a hydraulic pump station, used to store and circulate hydraulic oil. Hydraulic pump stations are currently widely used in brick-making machines, machining equipment, and various construction machinery. During operation, the hydraulic oil in a hydraulic pump station heats up, especially in summer when the oil temperature can easily reach high levels. Maintaining a suitable hydraulic oil temperature is essential for the stable operation of the pump station; excessively high oil temperatures typically cause the system to malfunction, and in severe cases, lead to system shutdown. Therefore, equipping the hydraulic oil tank with a cooling structure is a vital measure to control the oil temperature at an appropriate level.

[0003] Existing hydraulic oil tank devices typically incorporate internal heat exchange components to transfer the heat energy of the hydraulic oil to the external environment. However, because these tanks house the heat exchange components internally, their overall structure is complex and difficult to maintain. Furthermore, these heat exchange components increase the construction and operating costs of the hydraulic pump station, and their operation also generates energy consumption. Therefore, a novel hydraulic oil tank device is needed to address these technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a water-cooled oil tank device with a simple overall structure, easy maintenance, and low cooling energy consumption.

[0005] The technical solution adopted by this utility model is as follows: a water-cooled oil tank device, including a water tank located on the outer side and an oil tank located on the inner side. The top of the water tank is open, and there is a water-cooling space between the water tank and the oil tank to accommodate cooling water. An oil filling port is provided on the top wall of the oil tank, and an oil drain pipe is provided at the bottom of the side. The oil drain pipe passes through the side wall of the water tank and communicates with the inner cavity of the oil tank. A cooling water inlet pipe is provided at the bottom of the side and communicates with the water-cooling space. A cooling water overflow pipe is provided at the top of the other side and communicates with the water-cooling space. Multiple top oil pumps are installed on the top of the oil tank. A top oil inlet pipe is installed at the inlet of each top oil pump. The top oil inlet pipe passes through the top wall of the oil tank and extends to the bottom of the inner cavity of the oil tank. It also includes multiple valve bodies. The oil inlet of each valve body is connected to the oil outlet of each top oil pump through an oil pipe.

[0006] Preferably, three top oil pumps are installed side by side on the top of the oil tank, and three valve bodies are provided; a side oil pump is also provided on the side, and a side oil inlet pipe is installed at the inlet of the side oil pump. The side oil inlet pipe passes through the side wall of the water tank and the oil tank and extends to the bottom of the inner cavity of the oil tank.

[0007] Preferably, a strip support plate is welded and installed between the corresponding side walls of the water tank and the oil tank, and between their bottom walls.

[0008] Preferably, a water tank window is provided on the side wall of the water tank, and an oil tank window is provided on the same side wall of the oil tank. An inspection hole pipe is installed between the water tank window and the oil tank window. A removable cover plate for closing the water tank window is installed on the side wall of the water tank, and a sealing gasket is provided between the cover plate and the side wall of the water tank.

[0009] Preferably, it also includes a cuboid protective frame, with the water tank and each top oil pump and side oil pump installed and fixed inside the protective frame, and each valve body installed and fixed on the profile of the protective frame; lifting lugs are installed at the four top corners of the protective frame, and shock-absorbing rubber blocks are installed at the four bottom corners of the protective frame.

[0010] Preferably, it also includes an oil receiving groove, which is installed and fixed on the profile of the protective frame, and the oil receiving groove is located below each valve body.

[0011] The advantages and positive effects of this utility model are: This invention provides a water-cooled oil tank device. Compared with existing oil tank devices, the water-cooled oil tank of this invention has its oil tank placed inside a water tank, forming a water-cooled space between the two. Cooling water is injected into the water-cooled space through a cooling water inlet pipe. As the cooling water flows through the water-cooled space, it exchanges heat with the hydraulic oil in the oil tank. Finally, the cooling water is discharged through a cooling water overflow pipe. Because the cooling structure of this water-cooled oil tank device is located on the outside of the oil tank, there is no need to build a cooling structure inside the oil tank. This simplifies the structure of the oil tank and makes it easier to maintain.

[0012] As mentioned earlier, this water-cooled oil tank device uses cooling water flowing through the water-cooled space for heat exchange and cooling, and the cooling water is discharged by overflow. Therefore, when the cooling structure is running, only the cooling water pump consumes energy, resulting in low cooling energy consumption. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the main body of this utility model; Figure 3 This is a schematic diagram of the internal structure of the main body of this utility model.

[0014] In the picture: 1. Protective frame; 2. Lifting lugs; 3. Shock-absorbing rubber blocks; 4. Water tank; 5. Oil tank; 6. Oil drain pipe; 7. Water tank window; 8. Cooling water inlet pipe; 9. Top oil pump; 10. Valve body; 11. Side oil pump; 12. Oil receiving trough; 13. Cooling water overflow pipe; 14. Top oil inlet pipe; 15. Strip support plate; 16. Side oil inlet pipe; 17. Filler port; 18. Oil tank window; 19. Inspection hole pipe. Detailed Implementation

[0015] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0016] Please see Figure 1 , Figure 2 and Figure 3 The water-cooled oil tank device of this utility model includes a water tank 4 located on the outer side and an oil tank 5 located on the inner side. The top of the water tank 4 is open, and there is a water-cooled space between the water tank 4 and the oil tank 5 to accommodate cooling water.

[0017] In this example embodiment, such as Figure 3 As shown, strip support plates 15 are welded and installed between the corresponding side walls of the water tank 4 and the oil tank 5 and between their bottom walls. Each strip support plate 15 combines the water tank 4 and the oil tank 5 into a whole. When this water-cooled oil tank device is running, cooling water is injected into the aforementioned water-cooled space, and the cooling water exchanges heat with the hydraulic oil in the oil tank 5.

[0018] A filler port 17 is provided on the top wall of the oil tank 5, and a drain pipe 6 is provided at the bottom side. The drain pipe 6 passes through the side wall of the water tank 4 and communicates with the inner cavity of the oil tank 5. Hydraulic oil is injected into the oil tank 5 through the filler port 17. When oil needs to be drained, the drain pipe 6 is opened to discharge the hydraulic oil in the tank. Valves can be installed at the filler port 17 and the end of the drain pipe 6, and opened when necessary.

[0019] A cooling water inlet pipe 8 is located at the bottom of the side, communicating with the water-cooled space. A cooling water overflow pipe 13 is located at the top of the other side, also communicating with the water-cooled space. The cooling water inlet pipe 8 is positioned at a lower level, while the cooling water overflow pipe 13 is positioned at a higher level. Cooling water is injected into the water-cooled space through the cooling water inlet pipe 8, gradually increasing the liquid level. Finally, the cooled water, after heat exchange, is discharged through the cooling water overflow pipe 13. The cooling water inlet pipe 8 is typically connected to the cooling water supply pump via a pipeline, while the cooling water overflow pipe 13 is connected to a collection tank / pool via a pipeline. During operation, the cooling water supply pump actively pumps cooling water into the water-cooled space, and the cooled water is eventually discharged into the collection tank / pool. After natural cooling, it can be reused as a cooling water source.

[0020] Multiple top oil pumps 9 are installed on the top of the oil tank 5. Each top oil pump 9 has a top oil inlet pipe 14 installed at its inlet, passing through the top wall of the oil tank 5 and extending to the bottom of the inner cavity of the oil tank 5. Multiple valve bodies 10 are also included. The oil inlet of each valve body 10 is connected to the oil outlet of each top oil pump 9 via an oil pipe. Each valve body 10 typically has an oil inlet, multiple sets of oil usage interfaces, and a return oil port. Facilities using hydraulic oil, such as hydraulic cylinders, are connected to the oil usage interfaces on the valve body 10 via oil pipes. The return oil ports of each valve body 10 are connected to the oil tank 5 via oil pipes, thus allowing the returned oil to be reinjected into the oil tank 5, achieving the circulation of hydraulic oil. Specifically, the return oil ports of each valve body 10 can be connected to a valve on the filler port 17 via an oil pipe, or a separate return oil port can be provided on the top wall of the oil tank 5 with a valve installed on it.

[0021] In this embodiment, three top oil pumps 9 are installed side-by-side on the top of the oil tank 5, and correspondingly, three valve bodies 10 are provided. A side oil pump 11 is also provided on the side, with a side oil inlet pipe 16 installed at the inlet of the side oil pump 11. The side oil inlet pipe 16 passes through the side walls of the water tank 4 and the oil tank 5, and its inner end extends to the bottom of the inner cavity of the oil tank 5. The side oil pump 11 can be used as a backup oil pump. When the top oil pump 9 malfunctions, the oil pipe connected to its outlet can be connected to the outlet of the side oil pump 11, thereby ensuring the continuous and normal operation of the hydraulic pump station and improving equipment reliability.

[0022] In this embodiment, a water tank window 7 is provided on the side wall of the water tank 4, and an oil tank window 18 is provided on the same side wall of the oil tank 5. An inspection port pipe 19 is installed between the water tank window 7 and the oil tank window 18. A removable cover plate (not shown in the figure) for closing the water tank window 7 is installed on the side wall of the water tank 4, and a sealing gasket is provided between the cover plate and the side wall of the water tank 4. When it is necessary to inspect the inside of the oil tank 5, the hydraulic oil in the tank is drained, the cover plate is removed to open the inspection port pipe 19, and personnel enter the inside of the oil tank 5 through the inspection port pipe 19.

[0023] In this embodiment, a rectangular protective frame 1 is also included. The water tank 4, top oil pumps 9, and side oil pumps 11 are installed and fixed inside the protective frame 1. Each valve body 10 is installed and fixed on the profile of the protective frame 1. Lifting lugs 2 are installed at the four top corners of the protective frame 1, and shock-absorbing rubber blocks 3 are installed at the four bottom corners of the protective frame 1. The protective frame 1 is used to protect the internal components. The lifting lugs 2 are used to improve the ease of operation of this water-cooled oil tank device during hoisting and relocation. The shock-absorbing rubber blocks 3 are used to isolate the vibration generated by this oil tank device during operation and reduce the transmission of vibration to other equipment.

[0024] In this embodiment, an oil receiving groove 12 is also included, and the oil receiving groove 12 is installed and fixed on the profile of the protective frame 1. The oil receiving groove 12 is located below each valve body 10. The function of the oil receiving groove 12 is to receive the hydraulic oil that leaks from the various interface positions of the valve body 10.

Claims

1. A water-cooled oil tank device, characterized in that: It includes a water tank (4) located on the outside and an oil tank (5) located on the inside. The top of the water tank (4) is open, and there is a water-cooled space between the water tank (4) and the oil tank (5) to accommodate cooling water. An oil filling port (17) is provided on the top wall of the oil tank (5), and an oil drain pipe (6) is provided at the bottom of the side. The oil drain pipe (6) passes through the side wall of the water tank (4) and communicates with the inner cavity of the oil tank (5). A cooling water inlet pipe (8) is provided at the bottom of the side, and the cooling water inlet pipe (8) communicates with the water-cooled space. A cooling water overflow pipe (13) is provided on the top of one side, and the cooling water overflow pipe (13) is connected to the water-cooled space; multiple top oil pumps (9) are installed on the top of the oil tank (5), and a top oil inlet pipe (14) is installed at the inlet of each top oil pump (9). The top oil inlet pipe (14) passes through the top wall of the oil tank (5) and extends to the bottom of the inner cavity of the oil tank (5). It also includes multiple valve bodies (10), and the oil inlet of each valve body (10) is connected to the oil outlet of each top oil pump (9) through an oil pipe.

2. The water-cooled oil tank device as described in claim 1, characterized in that: Three top oil pumps (9) are installed side by side on the top of the oil tank (5), and three valve bodies (10) are provided; a side oil pump (11) is also provided on the side, and a side oil inlet pipe (16) is installed at the inlet of the side oil pump (11). The side oil inlet pipe (16) passes through the side wall of the water tank (4) and the oil tank (5) and its inner end extends to the bottom of the inner cavity of the oil tank (5).

3. The water-cooled oil tank device as described in claim 2, characterized in that: A strip support plate (15) is welded and installed between the corresponding side walls of the water tank (4) and the oil tank (5) and between their bottom walls.

4. The water-cooled oil tank device as described in claim 3, characterized in that: A water tank window (7) is provided on the side wall of the water tank (4), and an oil tank window (18) is provided on the same side wall of the oil tank (5). An inspection hole pipe (19) is installed between the water tank window (7) and the oil tank window (18). A detachable cover plate for sealing the water tank window (7) is installed on the side wall of the water tank (4), and a sealing gasket is provided between the cover plate and the side wall of the water tank (4).

5. The water-cooled oil tank device as described in claim 4, characterized in that: It also includes a rectangular protective frame (1), a water tank (4), and top oil pumps (9) and side oil pumps (11) installed and fixed inside the protective frame (1), and valve bodies (10) installed and fixed on the profile of the protective frame (1); lifting lugs (2) are installed at the top four corners of the protective frame (1), and shock-absorbing rubber blocks (3) are installed at the bottom four corners of the protective frame (1).

6. The water-cooled oil tank device as described in claim 5, characterized in that: It also includes an oil receiving groove (12) and the oil receiving groove (12) is installed and fixed on the profile of the protective frame (1). The oil receiving groove (12) is located below each valve body (10).

Images