Cooling device for oil tank of two-stage piston material-pushing centrifugal machine

Abstract

The utility model relates to a two-stage piston pusher centrifuge oil tank cooling device which comprises a cooling oil tank fixedly connected to the side face of a centrifuge oil tank, the cooling oil tank is communicated with the centrifuge oil tank through a communication port, a centrifuge oil overflow pipe is communicated to the cooling oil tank, and the side face of the cooling oil tank is fixedly connected with an installation plate. A mounting plate is arranged in the cooling oil tank, one side of the mounting plate is fixedly connected with a heat exchange pipe positioned in the cooling oil tank, one side, far away from the heat exchange pipe, of the mounting plate is fixedly connected with an outer cover, a partition plate is fixedly connected in the outer cover, two sides of the partition plate are respectively a water inlet cavity and a water outlet cavity, and two ends of the heat exchange pipe are respectively communicated with the water inlet cavity and the water outlet cavity. And hydraulic oil in the cooling oil tank is cooled, so that the oil in the oil tank is in a cooling state for a long time, and smooth production is ensured.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system technology, specifically to a cooling device for the oil tank of a two-stage piston pusher centrifuge. Background Technology

[0002] The HR630 two-stage piston pusher centrifuge needs to run continuously for 24 hours during production. In the high temperatures of spring, summer and autumn, the centrifuge runs for a long time, and the oil tank temperature reaches above 60 degrees Celsius. The centrifuge will stop due to the high oil temperature, which will affect production. In addition, the oil in the tank is prone to deterioration due to the high oil temperature. The original oil tank is small in volume and compact in layout, making it difficult to replace. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a cooling device for the oil tank of a two-stage piston pusher centrifuge.

[0004] This utility model is achieved through the following technical solution: a cooling device for the oil tank of a two-stage piston pusher centrifuge is provided, including a cooling oil tank fixedly connected to the side of the centrifuge oil tank. The cooling oil tank and the centrifuge oil tank are connected through a connecting port. The centrifuge oil overflow pipe is connected to the cooling oil tank. An installation plate is fixedly connected to the side of the cooling oil tank. A heat exchange tube located inside the cooling oil tank is fixedly connected to one side of the installation plate. The other side of the installation plate is provided with an inlet chamber connected to the cooling water inlet pipe and an outlet chamber connected to the cooling water outlet pipe. The two ends of the heat exchange tube are respectively connected to the inlet chamber and the outlet chamber.

[0005] As an optimization, an outer cover is fixed to the side of the mounting plate away from the heat exchange tube, and a partition is fixed inside the outer cover, with an inlet chamber and an outlet chamber on both sides of the partition.

[0006] As an optimization, the mounting plate is connected to the cooling oil tank flange.

[0007] As an optimization, the heat exchange tube has a U-shaped structure.

[0008] As an optimization, the heat exchange tubes are provided in multiple and arranged side by side.

[0009] As an optimization, a bracket supporting the heat exchange tube is fixedly connected inside the cooling oil tank.

[0010] As an optimization, an arc-shaped support plate is fixed to the upper end of the bracket.

[0011] As an optimization, a heat exchanger is installed on the centrifuge's oil overflow pipe.

[0012] The beneficial effects of this utility model are as follows: The oil tank cooling device of this utility model for a two-stage piston pusher centrifuge cools the hydraulic oil in the cooling oil tank by setting heat exchange tubes in the cooling oil tank, so that the oil in the tank is kept in a cooled state for a long time, ensuring the smooth operation of production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Sectional view of plane AA;

[0015] As shown in the figure:

[0016] 1. Centrifuge oil tank; 2. Cooling oil tank; 3. Connecting port; 4. Mounting plate; 5. Outer cover; 6. Partition plate; 7. Cooling water inlet pipe; 8. Cooling water outlet pipe; 9. Heat exchanger tube; 10. Bracket; 11. Heat exchanger; 12. Heat exchanger cooling water inlet pipe; 13. Heat exchanger cooling water outlet pipe; 14. Centrifuge oil overflow pipe; 15. Arc-shaped support plate. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0018] like Figures 1-2 As shown, the present invention discloses a cooling device for the oil tank of a two-stage piston pusher centrifuge, comprising a cooling oil tank 2 fixed to the side of the centrifuge oil tank 1. The bottom heights of the cooling oil tank 2 and the centrifuge oil tank 1 are the same. The cooling oil tank 2 and the centrifuge oil tank 1 are connected by a connecting port 3, which is located near the bottom of the cooling oil tank 2 and the centrifuge oil tank 1, thereby realizing the flow of oil between the two.

[0019] The centrifuge oil overflow pipe 14 is connected to the cooling oil tank 2, and a heat exchanger 11 is installed on the centrifuge oil overflow pipe 14. The centrifuge oil overflow pipe 14 flows through the heat exchanger 11, and the cooling water in the heat exchanger cooling water inlet pipe 12 of the heat exchanger 11 enters the heat exchanger 11 to cool the oil. After cooling the oil, the cooling water flows out through the heat exchanger cooling water outlet pipe 13.

[0020] A mounting plate 4 is fixedly connected to the side of the cooling oil tank 2. In this embodiment, a round hole is opened on the side of the cooling oil tank 2 away from the centrifuge oil tank 1. The mounting plate 4 is connected to the flange of the cooling oil tank 2 to seal the round hole. A sealing ring is installed between the mounting plate 4 and the cooling oil tank 2 to achieve a sealing effect.

[0021] A heat exchange tube 9 located inside the cooling oil tank 2 is fixedly connected to one side of the mounting plate 4. Multiple heat exchange tubes 9 are provided and arranged side by side at the same height. The heat exchange tube 9 has a U-shaped structure, with both ends connected to the mounting plate 4, and the mounting plate 4 has through holes communicating with the heat exchange tube 9.

[0022] Since the heat exchange tube 9 is a cantilever structure, a bracket 10 is fixedly connected inside the cooling oil tank 2 to support the heat exchange tube 9 in order to prevent sagging deformation and breakage at the connection. An arc-shaped support plate 15 is fixedly connected to the upper end of the bracket 10, and the heat exchange tube 9 is supported on the arc-shaped support plate 15.

[0023] The mounting plate 4 has an inlet chamber connected to the cooling water inlet pipe 7 and an outlet chamber connected to the cooling water outlet pipe 8 on the other side. Both the cooling water inlet pipe 7 and the cooling water outlet pipe 8 are equipped with valves.

[0024] The heat exchange tube 9 is connected to the inlet chamber and the outlet chamber at both ends, respectively. An outer cover 15 is fixed to the side of the mounting plate 4 away from the heat exchange tube 9. The outer cover 15 is a spherical cover and forms a sealed cavity with the mounting plate 4.

[0025] A partition 6 is fixedly connected inside the outer cover 15. In this embodiment, the two sides of the partition 6 are the water inlet chamber and the water outlet chamber, respectively.

[0026] How to use this utility model:

[0027] The hydraulic oil of the two-stage piston pusher centrifuge flows back to the cooling oil tank 2 through the centrifuge overflow pipe 14, and is cooled by the cooling water in the heat exchanger 11 when it passes through the heat exchanger 11, thus achieving a primary cooling.

[0028] Cooling water enters the inlet chamber above the partition 6 through the cooling water inlet pipe 7, then flows through the heat exchange pipe 9 and enters the outlet chamber below the partition 6, and is finally discharged through the cooling water outlet pipe 8.

[0029] After the hydraulic oil enters the cooling oil tank 2, it is cooled twice through the heat exchange tube 9 installed inside, so that the oil temperature is kept at a low temperature. The oil in the cooling oil tank 2 enters the centrifuge oil tank 1 through the connecting port 3, and the hydraulic pump draws hydraulic oil from the centrifuge oil tank 1.

[0030] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A two-stage pusher centrifuge oil tank cooling device, characterized in that: The application relates to a centrifugal machine oil tank cooling device, which comprises a cooling oil tank (2) fixed on the side of a centrifugal machine oil tank (1), wherein the cooling oil tank (2) and the centrifugal machine oil tank (1) are communicated through a communication port (3), a centrifugal machine oil overflow pipe (14) is communicated to the cooling oil tank (2), a mounting plate (4) is fixed on the side of the cooling oil tank (2), a heat exchange pipe (9) is fixed on one side of the mounting plate (4) and located in the cooling oil tank (2), the other side of the mounting plate (4) is provided with a water inlet cavity communicated with a cooling water inlet pipe (7) and a water outlet cavity communicated with a cooling water outlet pipe (8), and the two ends of the heat exchange pipe (9) are respectively communicated with the water inlet cavity and the water outlet cavity.

2. The double-stage pusher centrifuge oil tank cooling device according to claim 1, characterized in that: An outer cover (5) is fixed on the side of the mounting plate (4) away from the heat exchange pipe (9), a partition plate (6) is fixed in the outer cover (5), and the two sides of the partition plate (6) are respectively the water inlet cavity and the water outlet cavity.

3. The double-stage pusher centrifuge oil tank cooling device according to claim 1, characterized in that: The mounting plate (4) is flange-connected with the cooling oil tank (2).

4. The dual-stage pusher centrifuge oil tank cooling device of claim 1, wherein: The heat exchange pipe (9) is in a U-shaped structure.

5. The dual-stage pusher centrifuge oil tank cooling device of claim 1, wherein: The heat exchange pipe (9) is provided with a plurality of heat exchange pipes arranged side by side.

6. A dual stage pusher centrifuge oil tank cooling device according to claim 1, characterized in that: A support (10) for supporting the heat exchange pipe (9) is fixed in the cooling oil tank (2).

7. A two-stage pusher centrifuge oil tank cooling device according to claim 6, characterized in that: An arc-shaped supporting plate (15) is fixed on the upper end of the support (10).

8. The dual-stage pusher centrifuge oil tank cooling device of claim 1, wherein: The centrifugal machine oil overflow pipe (14) is provided with a heat exchanger (11).

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