Large-flow filter and oil system with same

Abstract

The utility model relates to a high-flow filter and an oil system with the same, and relates to the field of oil filter systems. The high-flow filter comprises a barrel, a filter element body, a filter element bottom plate and a filter element gland are arranged in the barrel, a detachable barrel upper cover is arranged at the top of the barrel, and an abutting elastic part is arranged between the filter element gland and the barrel upper cover, so that the stability of the filter element after installation is improved, and shaking and even damage caused by backflushing are reduced. The oil system comprises an inlet pipeline, a filter and an outlet pipeline, the outlet pipeline is provided with a check valve, a monitoring instrument is arranged between an inlet and an outlet of the filter, and an instrument valve group is arranged. When the filter continuously runs, the filter element can slowly increase due to dirt holding and pressure difference until the set value of the monitoring instrument is reached, and an alarm is given to inform maintenance personnel to replace the clean filter element.

Description

Technical Field

[0001] This application relates to the field of oil filter systems, and in particular to a large-flow filter and an oil system having the filter. Background Art

[0002] In large mainframe equipment, an oil supply device needs to be set up to provide stable lubricating oil and jacking oil supply for the mainframe to ensure that the mainframe equipment operates under stable and good working conditions. And the supply of lubricating oil needs to meet certain cleanliness requirements. Therefore, a filter is often set up in the oil supply system to filter the oil.

[0003] The filter includes a housing, the housing has an oil inlet and an oil outlet, a filter element is installed inside the housing, and the oil enters the inside of the housing from the oil inlet and flows out from the oil outlet after being filtered by the filter element to achieve filtration. However, during operation, especially for large-flow filters, there is often a backwashing situation during operation. Although the backwashing process is short, the short-term backwashing is also likely to cause the filter element with unstable installation to shake or even be damaged. Therefore, it needs to be improved. Summary of the Utility Model

[0004] In order to improve the stability of the filter element after installation and reduce the shaking or even damage to the filter element caused by backwashing, this application provides a large-flow filter and an oil system having the filter.

[0005] In the first aspect, a large-flow filter provided by this application adopts the following technical solution:

[0006] A large-flow filter includes a cylinder body, the cylinder body has an oil inlet and an oil outlet, a filter element body and a filter element bottom plate for supporting the bottom of the filter element body are arranged inside the cylinder body, the top of the cylinder body is open and is provided with a detachable upper cover of the cylinder body, and a filter element pressing cover for pressing the top of the filter element body is further arranged inside the cylinder body, and a tightening elastic member is arranged between the filter element pressing cover and the upper cover of the cylinder body. Through the structural improvement, the stability of the filter element after installation is enhanced. After installation, the filter element pressing cover and the filter element body can be tightened by the tightening elastic member. Even if backwashing occurs, the filter element will not collide rigidly with the cylinder body, and the tightening elastic member can be used for buffering, thereby effectively reducing the shaking and damage of the filter element caused by backwashing.

[0007] Preferably, the filter element pressing cover is provided with a filter element upper guide sleeve into which the top of the filter element body is inserted, and the inner edge of the port of the filter element upper guide sleeve facing the filter element body is provided with an upper inclined surface. Through the guiding action of the upper inclined surface, it is convenient for the rapid and accurate installation of the filter element body, improving the installation efficiency and the stability of the filter element body after installation.

[0008] Preferably, a lower guide sleeve for the bottom of the filter element body to be sleeved is provided on the filter element bottom plate, and a lower inclined surface is provided on the outer edge of the port of the lower guide sleeve of the filter element facing the filter element body. Through the positioning and support of the lower inclined surface, the stability of the filter element in the installation position is further enhanced, and the convenience of the bottom of the filter element body during installation is also improved.

[0009] Preferably, an annular groove is provided inside the bottom of the filter element body, and a sealing ring is provided inside the annular groove. The sealed connection between the filter element and the filter element bottom plate is realized, effectively preventing the leakage of oil fluid and improving the sealing performance.

[0010] Preferably, a handle is provided on the top of the filter element body. It is convenient for the operator to install and disassemble the filter element, improving the operation convenience.

[0011] Preferably, the pressing elastic member is a spring, and a spring guide sleeve for the bottom of the pressing elastic member to be inserted is provided on the filter element pressing cover. The stability of the bottom force application point of the pressing elastic member is higher, and the pressing elastic member is not easily displaced laterally, so that the filter element pressing cover can be stably pressed.

[0012] Preferably, a lifting eye bolt is detachably provided on the top of the filter element pressing cover. It is convenient for hoisting and moving the filter, and after use, the lifting eye bolt can be rotated to disassemble it, which is convenient for repeated use.

[0013] Preferably, an impact-proof plate is provided inside the cylinder body, and the impact-proof plate is located between the oil inlet and the filter element body. It can effectively reduce the direct impact of the oil fluid on the filter element, and is provided to prevent the fluid from directly impacting the filter element and causing the filter element to vibrate and become unstable.

[0014] The present application also provides an oil system with a large-flow filter, adopting the following technical solution:

[0015] An oil system with a large-flow filter includes an inlet pipeline, the above-mentioned filter, and an outlet pipeline connected in sequence, and a check valve is provided on the outlet pipeline. The probability of the oil fluid flowing out from the filter outlet and then flushing back into the filter to damage the filter element body can be reduced.

[0016] Preferably, an instrument valve group for monitoring the pressure difference between the two is provided between the inlet pipeline and the outlet pipeline. It is convenient to monitor the operation state of the oil system in real time. When the filter runs continuously, due to dirt collection, the pressure difference of the filter element will slowly increase until it reaches the set value of the monitoring instrument, and an alarm will be given in cooperation with methods such as lighting a lamp or ringing a bell to notify the maintenance personnel to replace the clean filter element.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. Due to the combined structure of the filter element gland and the pressing elastic member, a stable pressure is applied to the top of the filter element body, thereby significantly improving the stability of the filter element after installation, effectively reducing the shaking of the filter element caused by oil backwash, and further reducing the risk of filter element damage.

[0019] 2. The upper guide sleeve of the filter element provided on the filter element gland and the lower guide sleeve of the filter element provided on the filter element bottom plate are respectively guided by the upper inclined surface and the lower inclined surface, which facilitates the rapid and accurate installation of the filter element body, and at the same time further enhances the stability of the filter element at the installation position.

[0020] 3. The annular groove and the sealing ring on the inner side of the bottom of the filter element body achieve a sealed connection between the filter element and the filter element bottom plate, effectively preventing oil leakage, and improving the working efficiency and reliability of the filter.

[0021] 4. The handle design on the top of the filter element body facilitates the installation and removal of the filter element by the operator, improving the convenience of maintenance.

[0022] 5. The check valve provided in the oil system effectively prevents the reverse flow of oil in the system, ensuring the stability of oil supply and the consistency of filtration effect.

[0023] 6. The design of the lifting ring screw makes the hoisting and moving of the filter more convenient.

[0024] 7. The impact-proof plate effectively reduces the direct impact of oil on the filter element, further protecting the filter element from damage.

[0025] 8. The instrument valve group facilitates the real-time monitoring of the operating status of the oil system, improving the safety and maintainability of the system. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the large-flow filter of the embodiment of the present application;

[0027] Figure 2 It is a schematic structural diagram for reflecting the positional relationship between the impact-proof plate and the filter element body in the embodiment of the present application;

[0028] Figure 3 It is a schematic structural diagram for reflecting the connection relationship between the filter element bottom plate and the filter element gland in the embodiment of the present application;

[0029] Figure 4 It is a schematic structural diagram for reflecting the connection relationship between the filter element gland and the pressing elastic member in the embodiment of the present application;

[0030] Figure 5 It is a schematic structural diagram for reflecting the connection relationship between the filter element bottom plate and the X filter element body in the embodiment of the present application;

[0031] Figure 6This is a schematic structural diagram for embodying the connection relationship between the handle and the filter element body in the embodiments of the present application;

[0032] Figure 7 This is a schematic structural diagram of an oil system with a large-flow filter in the embodiments of the present application;

[0033] Figure 8 is Figure 7 top view of;

[0034] Figure 9 This is a schematic diagram of the principle of an oil system with a large-flow filter in the embodiments of the present application.

[0035] In the figure:

[0036] 1. Filter; 11. Cylinder body; 12. Oil inlet; 13. Oil outlet; 14. Impact plate; 15. Cylinder body upper cover;

[0037] 2. Filter element body; 20. Ring groove; 21. Sealing ring; 22. Handle; 23. Outer skeleton; 24. Inner skeleton; 25. Filter medium;

[0038] 3. Filter element bottom plate; 31. Filter element lower guide sleeve; 32. Lower inclined surface;

[0039] 4. Filter element gland; 41. Tightening elastic member; 411. Spring guide sleeve; 42. Filter element upper guide sleeve; 43. Upper inclined surface; 44. Lifting eye bolt;

[0040] 51. Check valve; 52. Instrument valve group; 53. Directional valve; 54. Monitoring instrument. Specific embodiments

[0041] The following will Figures 1-9 be further described in detail with reference to the present application.

[0042] This embodiment discloses a large-flow filter and an oil system having the filter. Through specific structural design, the stability of the filter element after installation is improved, the shaking and even damage to the filter element caused by backwashing are effectively reduced, and at the same time, the smooth flow and efficient filtration of the oil in the system are ensured.

[0043] Referring to Figure 1 and Figure 2 , the large-flow filter includes a cylinder body 11, and the cylinder body 11 has an oil inlet 12 and an oil outlet 13. A filter element body 2 is installed inside the cylinder body 11 for filtering impurities in the oil. In this embodiment, the arrangement of several filter element bodies 2 is in a honeycomb shape to make better use of the effective space. In addition, an impact plate 14 is provided on one side of the inside of the cylinder body 11 close to the oil inlet 12 and the oil outlet 13. When oil enters or backwashes, the impact plate 14 can block the turbulent flow and effectively reduce the direct impact of the oil on the filter element.

[0044] Reference Figure 3 In order to ensure the stable installation of the filter element body 2, a filter element bottom plate 3 and a filter element gland 4 are arranged inside the cylinder 11. The filter element bottom plate 3 is used to support the bottom of the filter element body 2, and the filter element gland 4 is used to press down the top of the filter element body 2. The top of the cylinder 11 is designed to be open and is equipped with a detachable upper cover of the cylinder 11 to facilitate the installation and maintenance of the filter element. A tightening elastic member 41 is arranged between the filter element gland 4 and the upper cover of the cylinder 11. The tightening elastic member 41 is a spring, and a spring guide sleeve 411 is arranged on the top of the filter element gland 4 for inserting the bottom of the tightening elastic member 41. Under the action of the tightening elastic member 41, the filter element gland 4 applies a stable pressure to the top of the filter element body 2, thereby preventing the filter element from shaking due to recoil.

[0045] Reference Figure 4 The bottom surface of the filter element gland 4 is provided with a plurality of filter element upper guide sleeves 42 for inserting the top of the filter element body 2. The filter element upper guide sleeves 42 correspond to the filter element body 2 one by one, and the inner edge of the port of the filter element upper guide sleeve 42 facing the filter element body 2 is designed as an upper slope 43. Such a design is not only convenient for the installation of the filter element, but also can further enhance the stability of the filter element in the installation position. The top of the filter element gland 4 is detachably provided with a lifting eye screw 44 through a screw hole and a thread, which is convenient for lifting and moving the filter 1.

[0046] Reference Figure 5 , a filter lower guide sleeve 31 for the bottom of the filter element body 2 to be sleeved is arranged in the center of the filter element bottom plate 3, and the outer edge of the port of the filter lower guide sleeve 31 facing the filter element body 2 is designed as a lower slope 32, such a structure enables the filter element body 2 to be firmly sleeved on the filter element bottom plate 3. An annular groove 20 is arranged on the inner side of the bottom of the filter element body 2, and a sealing ring 21 is installed inside the annular groove 20. When the filter element body 2 is installed on the filter element bottom plate 3, the sealing ring 21 is pressed between the annular groove 20 and the filter element bottom plate 3, thereby realizing a sealed connection between the filter element and the filter element bottom plate 3, effectively preventing oil from leaking out of the gap between the filter element and the filter element bottom plate 3, and improving the sealing performance of the filter 1.

[0047] Reference Figure 6 A handle 22 is provided on the top of the filter element body 2, which is convenient for operators to install and disassemble the filter element body 2. The filter element body 2 includes an outer frame 23, an inner frame 24 and a filter material 25 therebetween. The inner frame 24 and the outer frame 23 of the filter element are both made of laser perforated plates. The benefit of using laser perforated plates is that it can reduce the probability of particles generated after the frame is damaged, flowing to downstream components, and causing damage to system equipment.

[0048] The implementation principle of this embodiment is as follows: Through the cooperation of the filter element gland 4 and the pressing elastic member 41, a stable pressure is applied to the filter element body 2 to prevent it from shaking due to backwashing. At the same time, the inclined surface design of the upper filter element guide sleeve 42 and the lower filter element guide sleeve 31 enhances the stability of the filter element at the installation position. Furthermore, the sealing connection between the filter element and the filter element bottom plate 3 is achieved through the sealing ring 21, improving the sealing performance of the filter 1.

[0049] An oil system with such a large-flow filter, referring to Figures 7-9 , this system includes an inlet pipeline, the above-mentioned large-flow filter 1, and an outlet pipeline that are connected in sequence. In order to ensure the unidirectional flow of the oil in the system and prevent the occurrence of backflow, a check valve 51 is provided on the outlet pipeline. In addition, a monitoring instrument 54 and an instrument valve group 52 are provided between the inlet pipeline and the outlet pipeline, which are used to monitor the pressure difference between the two in real time, so as to detect and handle possible blockage or leakage problems in a timely manner. In this embodiment, two large-flow filters 1 are provided, and the two large-flow filters 1 are connected through a reversing valve 53, and can be switched or operated synchronously according to actual working conditions.

[0050] Through the above structural design, the oil system with the large-flow filter 1 provided in this embodiment not only realizes the stable installation and efficient filtration of the filter element, but also ensures the smooth flow and sealing performance of the oil in the system, effectively improving the reliability and working efficiency of the entire oil system. Through the settings of the check valve 51, the monitoring instrument 54 and the instrument valve group 52, the unidirectional flow and pressure difference monitoring of the oil in the system are ensured, thus realizing the efficient, stable and reliable operation of the entire oil system. When the filter 1 operates continuously, due to dirt collection, the pressure difference of the filter element will slowly increase until it reaches the set value of the monitoring instrument 54 and alarms, notifying the maintenance personnel to replace the clean filter element.

[0051] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A large flow filter, comprising a cylinder (11), the cylinder (11) having an oil inlet (12) and an oil outlet (13), a filter element body (2) and a filter element bottom plate (3) for supporting the bottom of the filter element body (2) are arranged inside the cylinder (11), characterized in that: The top of the cylinder (11) is open and provided with a detachable cylinder (11) upper cover. The cylinder (11) is also provided with a filter element pressure cover (4) for pressing against the top of the filter element body (2). A pressing elastic member (41) is provided between the filter element pressure cover (4) and the cylinder (11) upper cover.

2. The large flow filter according to claim 1, characterized in that: The filter element gland (4) is provided with a filter element upper guide sleeve (42) for inserting the top of the filter element body (2), and the filter element upper guide sleeve (42) is provided with an upper inclined surface (43) at the inner edge of the port facing the filter element body (2).

3. The large flow filter according to claim 2, characterized in that: The filter element bottom plate (3) is provided with a filter element lower guide sleeve (31) for sleeve-mounting the bottom of the filter element body (2); the filter element lower guide sleeve (31) is provided with a lower inclined surface (32) at the outer edge of the port facing the filter element body (2).

4. The large flow filter according to claim 3, characterized in that: An annular groove (20) is provided on the inner side of the bottom of the filter element body (2), and a sealing ring (21) is provided inside the annular groove (20).

5. The large flow filter according to claim 1, characterized in that: The filter element body (2) comprises an outer frame (23), an inner frame (24) and a filter material (25) therebetween.

6. The large flow filter according to claim 1, characterized in that: The pressing elastic member (41) is a spring, and the filter element gland (4) is provided with a spring guide sleeve (411) for inserting the bottom of the pressing elastic member (41).

7. The large flow filter according to claim 1, characterized in that: A lifting eye screw (44) is detachably provided on the top of the filter element gland (4).

8. The large flow filter according to claim 1, characterized in that: An anti-collision plate (14) is arranged inside the cylinder (11), and the anti-collision plate (14) is located between the oil inlet (12) and the filter element body (2).

9. An oil system having a large flow filter according to any one of claims 1 to 8, characterized in that: It comprises an inlet pipeline, a filter (1) and an outlet pipeline which are connected in sequence, wherein the outlet pipeline is provided with a check valve (51).

10. The oil system with a large flow filter according to claim 9, characterized in that: An instrument valve group (52) for monitoring the pressure difference between the inlet pipeline and the outlet pipeline is arranged between the inlet pipeline and the outlet pipeline.

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