Hydraulic station filtering system capable of achieving high cleanliness

Abstract

The utility model relates to the technical field of hydraulic station filtering, and discloses a high-cleanliness hydraulic station filtering system which comprises a first hydraulic test station, a second hydraulic test station and a third hydraulic test station. The bottom end of the second hydraulic test station is fixedly connected with a second connecting pipe, and the bottom end of the third hydraulic test station is fixedly connected with a third connecting pipe. By arranging a first hydraulic test station, a second hydraulic test station, a third hydraulic test station, a first-stage filtering oil tank, a first-stage filter, a second-stage filtering oil tank, a second-stage filter, a circulating filtering main oil tank, a fine filter and a first return pipe, hydraulic oil in an oil cylinder cannot be directly discharged into a hydraulic station oil tank, and return oil is merged and flows into the first-stage filtering oil tank; the oil is filtered by the first-stage filter and flows into the second-stage filtering oil tank, the filtered oil is NAS10 grade, and the oil subjected to fine filtering is conveyed to the oil tank, so that NAS6-7 grade can be filtered at one time.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic station filtration, in particular to a filtration system for a hydraulic station with high cleanliness. Background Technique

[0002] For engineering equipment such as aerial work platforms, cranes, and mobile machinery, high cleanliness is required for valve groups and oil cylinders. If the cleanliness fails to meet the standard, it will block the valves or damage the oil cylinder seals, affecting the use of the equipment.

[0003] Currently, conventional filters on the market cannot filter hydraulic oil to NAS 6-7 levels in one go and require multiple filtrations to achieve. Therefore, a filtration system for a hydraulic station with high cleanliness is proposed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filtration system for a hydraulic station with high cleanliness to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A filtration system for a hydraulic station with high cleanliness, including a first hydraulic test station, a second hydraulic test station, and a third hydraulic test station,

[0006] The bottom end of the first hydraulic test station is fixedly connected with a first connecting pipe, the bottom end of the second hydraulic test station is fixedly connected with a second connecting pipe, and the bottom end of the third hydraulic test station is fixedly connected with a third connecting pipe.

[0007] Furthermore, one ends of the first connecting pipe, the second hydraulic test station, and the third connecting pipe are all communicated with a first conveying pipe.

[0008] Furthermore, one end of the first conveying pipe is fixedly connected with a primary filtration oil tank, one end of the primary filtration oil tank is communicated with a second conveying pipe, and the left end of the second conveying pipe is fixedly connected with a first motor.

[0009] Furthermore, a primary filter is fixedly connected in the middle of the second conveying pipe, and one end of the second conveying pipe is fixedly connected with a secondary filtration oil tank.

[0010] Furthermore, one end of the secondary filtration oil tank is communicated with a third conveying pipe, and the left end of the third conveying pipe is fixedly connected with a second motor.

[0011] Furthermore, a secondary filter is fixedly connected in the middle of the third conveying pipe, and the right end of the third conveying pipe is fixedly connected with a circulating filtration main oil tank.

[0012] Further, a fourth delivery pipe is fixedly connected to the right end of the main circulating filter tank, and a sixth motor is fixedly connected to the middle of the fourth delivery pipe.

[0013] Further, one end of the fourth delivery pipe is fixedly connected to a fine filter, and one end of the fine filter is fixedly connected to a first return pipe.

[0014] Further, a second return pipe, a third return pipe and a fourth return pipe are respectively communicated with one end of the main circulating filter tank.

[0015] Further, a third motor, a fourth motor and a fifth motor are respectively fixedly connected to the ends of the second return pipe, the third return pipe and the fourth return pipe close to the main circulating filter tank, and one ends of the second return pipe, the third return pipe and the fourth return pipe are respectively communicated with a first hydraulic test station, a second hydraulic test station and a third hydraulic test station.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] By setting up a first hydraulic test station, a second hydraulic test station, a third hydraulic test station, a first connecting pipe, a second connecting pipe, a third connecting pipe, a first delivery pipe, a primary filter tank, a second delivery pipe, a first motor, a primary filter, a secondary filter tank, a second motor, a third delivery pipe, a secondary filter, a main circulating filter tank, a fourth delivery pipe, a sixth motor, a fine filter, a first return pipe, a second return pipe, a third return pipe, a fourth return pipe, a third motor, a fourth motor and a fifth motor, after the first hydraulic test station, the second hydraulic test station and the third hydraulic test station finish testing the oil cylinder, the hydraulic oil in the oil cylinder cannot be directly discharged into the hydraulic station tank. The return oil is merged and flows into the primary filter tank. When the liquid level reaches the set height, the first motor starts, and the oil liquid is filtered by the primary filter and flows into the secondary filter tank. At this time, the filtered oil product is NAS 10 level. Similarly, the oil liquid flows into the main tank through the secondary filter. At this time, the filtered oil product is NAS 9 level. At the same time, the fine filter has been circulating and filtering the oil liquid in the main tank to make it reach NAS 6-7 level. When the liquid level in the first hydraulic test station tank is lower than the set value, the third motor starts to pump the oil liquid filtered by the fine filter in the main tank into the first hydraulic tank. Similarly, the hydraulic oil required by the second hydraulic test station and the third hydraulic test station will also pass through the motor in the main tank to transport the oil liquid filtered by the fine filter to the tank. Thus, the whole filtering process is completed by circulation, so as to achieve a one-time filtration to NAS 6-7 level. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0019] Figure 1 It is a schematic diagram of the overall structure of the filtration system of the present utility model.

[0020] In the figure: 1, the first hydraulic test station; 2, the second hydraulic test station; 3, the third hydraulic test station; 4, the first connecting pipe; 5, the second connecting pipe; 6, the third connecting pipe; 7, the first conveying pipe; 8, the primary filtration fuel tank; 9, the second conveying pipe; 10, the first motor; 11, the primary filter; 12, the secondary filtration fuel tank; 13, the second motor; 14, the third conveying pipe; 15, the secondary filter; 16, the main circulation filtration fuel tank; 17, the fourth conveying pipe; 18, the sixth motor; 19, the fine filter; 20, the first return pipe; 21, the second return pipe; 22, the third return pipe; 23, the fourth return pipe; 24, the third motor; 25, the fourth motor; 26, the fifth motor. Detailed implementation manners

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 The utility model provides a technical solution for realizing a high cleanliness hydraulic station filtration system: a high cleanliness hydraulic station filtration system, comprising a first hydraulic test station 1, a second hydraulic test station 2 and a third hydraulic test station 3, by setting the first hydraulic test station 1, the second hydraulic test station 2, the third hydraulic test station 3, the first connecting pipe 4, the second connecting pipe 5, the third connecting pipe 6, the first delivery pipe 7, the primary filter oil tank 8, the second delivery pipe 9, the first motor 10, the primary filter 11, the secondary filter oil tank 12, the second motor 13, the third delivery pipe 14, the secondary filter 15, the circulating filter main oil tank 16, the fourth delivery pipe 17, the sixth motor 18, the fine filter Filter 19, first return pipe 20, second return pipe 21, third return pipe 22, fourth return pipe 23, third motor 24, fourth motor 25 and fifth motor 26. After the first hydraulic test station 1, second hydraulic test station 2 and third hydraulic test station 3 have tested the oil cylinder, the hydraulic oil in the oil cylinder cannot be directly discharged to the hydraulic station tank. The return oil is merged and flows into the primary filter tank 8. When the liquid level reaches the set height, the first motor 10 is started, and the oil is filtered through the primary filter 11 and flows into the secondary filter tank 12. At this time, the filtered oil is NAS10 grade. Similarly, the oil flows into the main tank through the secondary filter 15. At this time, the filtered oil is NAS 9 level, and at the same time, the fine filter 19 has been circulating and filtering the oil in the main oil tank 16 to reach NAS 6-7 level. When the oil level of the first hydraulic test station 1 tank is lower than the set value, the third motor 24 starts to pump the oil after fine filtration in the main oil tank into the first hydraulic oil tank. Similarly, the hydraulic oil required by the second hydraulic test station 2 and the third hydraulic test station 3 will also pass through the motor of the main oil tank to transport the fine filtered oil to the tank, thereby completing the entire filtering process in a cycle, thereby achieving one-time filtration to NAS6-7 level;

[0025] The bottom end of the first hydraulic test station 1 is fixedly connected to a first connecting pipe 4. The bottom end of the second hydraulic test station 2 is fixedly connected to a second connecting pipe 5. The bottom end of the third hydraulic test station 3 is fixedly connected to a third connecting pipe 6. One ends of the first connecting pipe 4, the second hydraulic test station 2, and the third connecting pipe 6 are all communicated with a first conveying pipe 7. One end of the first conveying pipe 7 is fixedly connected to a primary filtering fuel tank 8. One end of the primary filtering fuel tank 8 is communicated with a second conveying pipe 9. The left end of the second conveying pipe 9 is fixedly connected to a first motor 10. The middle of the second conveying pipe 9 is fixedly connected to a primary filter 11. One end of the second conveying pipe 9 is fixedly connected to a secondary filtering fuel tank 12. One end of the secondary filtering fuel tank 12 is communicated with a third conveying pipe 14. The left end of the third conveying pipe 14 is fixedly connected to a second motor 13. The middle of the third conveying pipe 14 is fixedly connected to a secondary filter 15. The right end of the third conveying pipe 14 is fixedly connected to a circulating filtering main fuel tank 16. The right end of the circulating filtering main fuel tank 16 is fixedly connected to a fourth conveying pipe 17. The middle of the fourth conveying pipe 17 is fixedly connected to a sixth motor 18. One end of the fourth conveying pipe 17 is fixedly connected to a fine filter 19. One end of the fine filter 19 is fixedly connected to a first return pipe 20. One end of the circulating filtering main fuel tank 16 is respectively communicated with a second return pipe 21, a third return pipe 22, and a fourth return pipe 23. The ends of the second return pipe 21, the third return pipe 22, and the fourth return pipe 23 close to the circulating filtering main fuel tank 16 are respectively fixedly connected to a third motor 24, a fourth motor 25, and a fifth motor 26. The ends of the second return pipe 21, the third return pipe 22, and the fourth return pipe 23 are respectively communicated with the first hydraulic test station 1, the second hydraulic test station 2, and the third hydraulic test station 3.

[0026] When in use of the present utility model, after the first hydraulic test station 1, the second hydraulic test station 2, and the third hydraulic test station 3 finish testing the oil cylinder, the hydraulic oil in the oil cylinder cannot be directly discharged into the hydraulic station fuel tank. The returned oil is merged and flows into the primary filtering fuel tank 8. When the liquid level reaches the set height, the first motor 10 is started, and the oil liquid will be filtered by the primary filter 11 and flow into the secondary filtering fuel tank 12. At this time, the filtered oil product is of NAS 10 level. Similarly, the oil liquid flows into the main fuel tank through the secondary filter 15. At this time, the filtered oil product is of NAS 9 level. At the same time, the fine filter 19 has been circulating and filtering the oil liquid in the circulating filtering main fuel tank 16 to make it reach NAS 6 - 7 level. When the liquid level in the fuel tank of the first hydraulic test station 1 is lower than the set value, the third motor 24 is started to pump the oil liquid filtered by the fine filter in the main fuel tank into the first hydraulic fuel tank. Similarly, the hydraulic oil required by the second hydraulic test station 2 and the third hydraulic test station 3 will also be transported to the fuel tank by the motors in the main fuel tank after the oil liquid is finely filtered. Thus, the whole filtering process is completed by circulation.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-cleanliness hydraulic station filtration system, comprising a first hydraulic test station (1), a second hydraulic test station (2), and a third hydraulic test station (3), characterized in that: The bottom end of the first hydraulic test station (1) is fixedly connected to a first connecting pipe (4), the bottom end of the second hydraulic test station (2) is fixedly connected to a second connecting pipe (5), and the bottom end of the third hydraulic test station (3) is fixedly connected to a third connecting pipe (6).

2. The high-cleanliness hydraulic station filtration system according to claim 1, characterized in that: One end of the first connecting pipe (4), the second hydraulic test station (2), and the third connecting pipe (6) are all communicated with a first conveying pipe (7).

3. The filtration system of a high-cleanliness hydraulic station according to claim 2, characterized in that: One end of the first conveying pipe (7) is fixedly connected to a primary filtration oil tank (8), one end of the primary filtration oil tank (8) is communicated with a second conveying pipe (9), and the left end of the second conveying pipe (9) is fixedly connected to a first motor (10).

4. A high-cleanliness hydraulic station filtration system according to claim 3, characterized in that: A primary filter (11) is fixedly connected in the middle of the second conveying pipe (9), and one end of the second conveying pipe (9) is fixedly connected to a secondary filtration oil tank (12).

5. The filtration system for a high-cleanliness hydraulic station according to claim 4, wherein: One end of the secondary filtration oil tank (12) is communicated with a third conveying pipe (14), and the left end of the third conveying pipe (14) is fixedly connected to a second motor (13).

6. The high-cleanliness hydraulic station filtration system according to claim 5, characterized in that: A secondary filter (15) is fixedly connected in the middle of the third conveying pipe (14), and the right end of the third conveying pipe (14) is fixedly connected to a circulating filtration main oil tank (16).

7. A high-cleanliness hydraulic station filtration system according to claim 6, characterized in that: The right end of the circulating filtration main oil tank (16) is fixedly connected to a fourth conveying pipe (17), and a sixth motor (18) is fixedly connected in the middle of the fourth conveying pipe (17).

8. A high-cleanliness hydraulic station filtration system according to claim 7, characterized in that: One end of the fourth conveying pipe (17) is fixedly connected to a fine filter (19), and one end of the fine filter (19) is fixedly connected to a first return pipe (20).

9. The filtration system for a high-cleanliness hydraulic station according to claim 8, wherein: One end of the circulating filtration main oil tank (16) is respectively communicated with a second return pipe (21), a third return pipe (22), and a fourth return pipe (23).

10. A high-cleanliness hydraulic station filtration system according to claim 9, characterized in that: One end of the second return pipe (21), the third return pipe (22), and the fourth return pipe (23) close to the circulating filtration main oil tank (16) are respectively fixedly connected to a third motor (24), a fourth motor (25), and a fifth motor (26), and one end of the second return pipe (21), the third return pipe (22), and the fourth return pipe (23) are respectively communicated with the first hydraulic test station (1), the second hydraulic test station (2), and the third hydraulic test station (3).

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