Fire-resistant oil filter element

Abstract

The utility model discloses a fire-resistant oil filter element which comprises a shell, and a placing box is arranged at the position, close to the left side, of an inner cavity of the shell. When the fire-resistant oil filter element is used, an oil inlet pipe and the placing box are arranged in a sliding connection mode, so that fire-resistant oil flows into the inner cavity of the placing box from the oil inlet pipe; when a servo motor is started to drive a threaded rod to rotate, the threaded rod rotates to drive a moving block on the front side to move rightwards, and the moving block is driven to move rightwards, so that the fire-resistant oil can be discharged from the top of a placement box after being filtered by a plurality of pieces of glass fiber paper and screened by a screen plate, and the fire-resistant oil can be discharged from an oil outlet through gathering arrangement of two drainage plates; a rear side moving block horizontally slides on a cross rod, so that a placing box can be driven to horizontally move rightwards, the oil outlet position of an oil inlet pipe in the placing box is enlarged, and the contact area of fire-resistant oil and glass fiber paper is enlarged, so that the filtering effect can be effectively improved, and meanwhile, the use cost of the glass fiber paper is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a fire-resistant oil filter element. Background Art

[0002] With the advancement of science and technology, the parameter level of steam turbines has gradually improved, and high temperature, high pressure and high power have become the development direction. At the same time, it also poses a challenge to the regulation system of steam turbines, requiring higher driving force and faster response performance, so the use of high-pressure electro-hydraulic regulation system has become inevitable. The traditional hydraulic regulation system uses turbine oil as the working fluid, which shares the oil tank with the lubricating oil. The oil quality cannot guarantee the cleanliness required for the use of the servo valve, and its self-ignition performance in high temperature environment ultimately limits it to low-pressure systems, while high-pressure systems must use fire-resistant oil.

[0003] After being put into use, fire-resistant oil is constantly subjected to oxidation and mechanical shearing, and some of its characteristic indicators change, which has an adverse effect on the EH system, and the fire-resistant oil needs to be regenerated. The regenerated filter materials mainly include: paper, glass fiber paper, stainless steel mesh, diatomaceous earth, activated alumina, modified alumina, ion exchange resin and other types. Among them, glass fiber paper is very thin, with a thickness of only 0.5mm. The filtration accuracy of glass fiber paper is divided into many types, such as 1 micron, 3 microns, 5 microns, 10 microns, 25 microns and 40 microns.

[0004] At present, the hydraulic filter element of the EH fire-resistant oil system generally adopts glass fiber paper filled in the filter element. The fire-resistant oil passes through the glass fiber paper, and the glass fiber paper absorbs the acidic substances in the fire-resistant oil, thereby realizing the regeneration of the fire-resistant oil. Due to the limitation of the specifications of the hydraulic filter element, within the set length, the fire-resistant oil directly passes through the glass fiber paper. The contact time between the glass fiber paper and the fire-resistant oil is short, resulting in poor filtering effect. In addition, it is not convenient for the staff to replace the glass fiber paper, and the labor intensity is relatively high. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a fire-resistant oil filter element.

[0006] One of the purposes of the utility model is achieved by the following technical solution:

[0007] The top of the oil filter cartridge is provided with a cam which is located adjacent to the top of the oil filter housing, and the top of the oil filter housing has a cam which is located adjacent to the top of the oil filter housing.

[0008] Furthermore, the moving mechanism includes two moving blocks, and the two moving blocks are respectively fixedly connected to the bottom of the placement box near the front and rear sides, a threaded hole is opened on the moving block located on the front side, and a threaded rod is screwed into the inner cavity of the threaded hole, a first sealed bearing is fixedly installed on the left side of the inner cavity of the outer shell, a circular hole is opened on the right side of the outer shell near the bottom, and a second sealed bearing is fixedly installed in the inner cavity of the circular hole, a connecting cover is provided on the right side of the circular hole, and the left side of the connecting cover is fixedly connected to the right side wall of the outer shell, a servo motor is fixedly installed in the inner cavity of the connecting cover, the left end of the threaded rod is inserted into the first sealed bearing, and the right end of the threaded rod passes through the inner cavity of the second sealed bearing and is fixedly connected to the power output end of the servo motor.

[0009] Furthermore, a first through hole is formed on the moving block at the rear side, and a cross bar is penetrated through the inner cavity of the first through hole, and the left and right ends of the cross bar are respectively fixedly connected to the left and right sides of the inner cavity of the shell.

[0010] Furthermore, a sealing ring is provided on the outer wall of the oil inlet pipe, and the sealing ring is fixedly connected to the left side wall of the placement box.

[0011] Furthermore, guide plates are fixedly connected to the left and right sides of the inner cavity of the shell near the bottom, and the other side of the guide plates is fixedly connected to the bottom of the inner cavity of the shell, and the front and rear sides of the two guide plates are fixedly connected to the front and rear sides of the inner cavity of the shell.

[0012] Furthermore, the clamping mechanism includes two connecting plates, and the two connecting plates are respectively fixedly connected to the left and right sides of the screen plate, and open grooves matching the connecting plates are opened at the tops of the left and right sides of the inner cavity of the placement box, and the two connecting plates are respectively slidably connected to the adjacent open groove inner cavities, and second through holes are opened near the tops on the left and right sides of the placement box, and the inner cavities of the second through holes are connected to the inner cavities of adjacent open grooves, and blind holes are opened on the sides away from each other of the two connecting plates, and the inner cavities of the two second through holes are slidably connected with T-shaped rods, and the longer end of the T-shaped structure of the T-shaped rod is inserted in the blind hole inner cavity, and the outer sides of the two T-shaped rods are sleeved with first springs, and the two ends of the first spring are respectively fixedly connected to the T-shaped rod and the placement box.

[0013] Furthermore, the limiting mechanism includes a limiting plate, and the limiting plate is fittedly arranged at the top right side of the cover plate, a fixing block is fixedly connected to the top right side of the shell, and a cylindrical cavity is opened on the fixing block near the top, and a square groove is opened at the bottom of the inner cavity of the cylindrical cavity, and a square block is slidably connected to the inner cavity of the square groove, and a rotating rod is fixedly connected to the top of the square block, and a third through hole is opened at the top of the fixing block, and the top of the rotating rod passes through the inner cavity of the third through hole and is fixedly connected to the bottom of the limiting plate, a limiting ring and a second spring are sleeved on the outer side of the rotating rod, and the limiting ring and the rotating rod are fixedly connected, and the upper and lower ends of the second spring are respectively fixedly connected to the inner cavity top of the cylindrical cavity and the top of the limiting ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the sliding connection setting of the oil inlet pipe and the placement box, when the fire-resistant oil flows into the inner cavity of the placement box from the oil inlet pipe, it can be filtered by multiple glass fiber papers and screened by the screen plate, and then overflow from the top of the placement box. Through the gathering setting of the two drainage plates, the filtered fire-resistant oil can be discharged from the oil outlet. When the servo motor is started to drive the threaded rod to rotate, the rotation of the threaded rod drives the front moving block to move to the right, and the rear moving block slides horizontally on the cross bar, thereby driving the placement box to move horizontally to the right, thereby increasing the oil outlet position of the oil inlet pipe in the placement box, and by increasing the contact area between the fire-resistant oil and the glass fiber paper, the filtering effect can be effectively improved, and at the same time, the use cost of the glass fiber paper can be reduced;

[0016] 2. The servo motor drives the placement box to move to the bottom of the paper changing port, and then, by pulling the limit plate to move vertically upward and drive the block to detach from the inner cavity of the square groove, the limit plate is rotated with the rotating rod as the center of the circle away from the cover plate, so that when the handle is pulled and the cover plate is driven to flip upward, the paper changing port can be opened, and then, the T-shaped rods on both sides are pulled away from each other to overcome the resistance of the adjacent first springs, so that the two T-shaped rods are pulled out of the adjacent blind hole cavities, and when the screen plate is pulled upward, the two connecting plates can be taken out from the adjacent open groove cavities, so as to open the placement box, which makes it convenient for the staff to replace the used glass fiber paper in the placement box, which not only ensures the filtering effect of the filter element, but also reduces the workload of the staff in changing paper.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional diagram of this embodiment;

[0019] Figure 2 A three-dimensional diagram of a component placement box of this embodiment;

[0020] Figure 3 This is a front view of the structure of the present embodiment;

[0021] Figure 4 A bottom view of the component placement box of this embodiment;

[0022] Figure 5 for Figure 3 A magnified view of the structure in the middle.

[0023] In the figure: 1. shell; 2. placement box; 3. oil inlet pipe; 4. sealing ring; 5. glass fiber paper; 6. screen plate; 7. moving block; 8. threaded rod; 9. connecting cover; 10. servo motor; 11. cross bar; 12. oil outlet; 13. drainage plate; 14. paper changing port; 15. cover plate; 16. handle; 17. fixing block; 18. block; 19. rotating rod; 20. limit plate; 21. limit ring; 22. second spring; 23. opening groove; 24. connecting plate; 25. T-bar; 26. first spring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figures 1 to 5 , the utility model provides the following technical solutions:

[0028] Embodiment 1:

[0029] A fire-resistant oil filter element comprises a shell 1, a placement box 2 is provided near the left side of the inner cavity of the shell 1, and a moving mechanism is provided at the bottom of the placement box 2, a screen plate 6 is fitted on the top of the inner cavity of the placement box 2, and a clamping mechanism is provided between the screen plate 6 and the placement box 2, an oil inlet pipe 3 is fitted on the bottom of the inner cavity of the placement box 2, a through hole is opened on the left side of the placement box 2, and one end of the oil inlet pipe 3 passes through the through hole and the left side of the shell 1, and extends to the outside of the shell 1, a sealing ring 4 is provided on the outer wall of the oil inlet pipe 3, and the sealing ring 4 is fixedly connected to the left side wall of the placement box 2 to prevent the fire-resistant oil from leaking from the through hole, a plurality of glass fiber papers 5 are placed in the inner cavity of the placement box 2, and the upper surface of the oil inlet pipe 3 is fixed to the left side wall of the placement box 2. The glass fiber paper 5 is fitted, a paper changing port 14 is opened at the right side of the top of the shell 1, and a cover plate 15 is fitted on the top of the paper changing port 14, the left side of the cover plate 15 is hinged to the top of the shell 1, and a handle 16 is fixedly connected to the top of the cover plate 15 near the right side, a limiting mechanism is provided at the right side of the top of the cover plate 15, an oil outlet 12 is opened in the middle position of the bottom of the shell 1, and guide plates 13 are fixedly connected to the left and right sides of the inner cavity of the shell 1 near the bottom, and the other side of the guide plate 13 is fixedly connected to the bottom of the inner cavity of the shell 1, and the front and rear sides of the two guide plates 13 are fixedly connected to the front and rear sides of the inner cavity of the shell 1, so as to concentrate the fire-resistant oil at the oil outlet 12.

[0030] The moving mechanism includes two moving blocks 7, and the two moving blocks 7 are respectively fixedly connected to the bottom of the placement box 2 near the front and rear sides. A threaded hole is opened on the moving block 7 located on the front side, and a threaded rod 8 is screwed into the inner cavity of the threaded hole. A first sealed bearing is fixedly installed on the left side of the inner cavity of the outer shell 1. A round hole is opened on the right side of the outer shell 1 near the bottom, and a second sealed bearing is fixedly installed in the inner cavity of the round hole. A connecting cover 9 is provided on the right side of the round hole, and the left side of the connecting cover 9 is fixedly connected to the right side wall of the outer shell 1. A servo motor 10 is fixedly installed in the inner cavity of the connecting cover 9. The left end of the threaded rod 8 is inserted into the first sealed bearing, and the right end of the threaded rod 8 passes through the inner cavity of the second sealed bearing and is fixedly connected to the power output end of the servo motor 10. A first through hole is opened on the moving block 7 located on the rear side, and a cross bar 11 is passed through the inner cavity of the first through hole. The left and right ends of the cross bar 11 are respectively fixedly connected to the left and right sides of the inner cavity of the outer shell 1.

[0031] Working principle: When the utility model is in use, the sliding connection arrangement of the oil inlet pipe 3 and the placement box 2 is used, so that when the fire-resistant oil flows into the inner cavity of the placement box 2 from the oil inlet pipe 3, it can be filtered by multiple glass fiber papers 5 and screened by the screen plate 6, and then overflow from the top of the placement box 2, and through the gathering arrangement of two guide plates 13, the filtered fire-resistant oil can be discharged from the oil outlet 12, and when the servo motor 10 is started to drive the threaded rod 8 to rotate, the threaded rod 8 rotates and drives the front moving block 7 to move right, and the rear moving block 7 slides horizontally on the cross bar 11, thereby driving the placement box 2 to move horizontally to the right, thereby increasing the oil outlet position of the oil inlet pipe 3 in the placement box 2, and by increasing the contact area between the fire-resistant oil and the glass fiber paper 5, the filtering effect can be effectively improved, and at the same time, the use cost of the glass fiber paper 5 can be reduced.

[0032] Embodiment 2:

[0033] The clamping mechanism includes two connecting plates 24, and the two connecting plates 24 are fixedly connected to the left and right sides of the screen plate 6 respectively. Open grooves 23 matching the connecting plates 24 are opened at the tops of the left and right sides of the inner cavity of the placement box 2, and the two connecting plates 24 are slidably connected to the adjacent inner cavities of the opening grooves 23. Second perforations are opened near the tops of the left and right sides of the placement box 2, and the second perforated inner cavities are connected to the inner cavities of the adjacent opening grooves 23. Blind holes are opened on the sides away from each other of the two connecting plates 24. The inner cavities of the two second perforations are slidably connected with T-shaped rods 25, and the longer end of the T-shaped structure of the T-shaped rod 25 is inserted into the blind hole inner cavity. The outer sides of the two T-shaped rods 25 are sleeved with first springs 26, and the two ends of the first spring 26 are fixedly connected to the T-shaped rod 25 and the placement box 2 respectively.

[0034] The limiting mechanism includes a limiting plate 20, and the limiting plate 20 is fittedly arranged at the top right side of the cover plate 15, a fixing block 17 is fixedly connected to the top right side of the shell 1, and a cylindrical cavity is opened on the fixing block 17 near the top, and a square groove is opened at the bottom of the inner cavity of the cylindrical cavity, and a square block 18 is slidably connected to the inner cavity of the square groove, and a rotating rod 19 is fixedly connected to the top of the square block 18, and a third through hole is opened at the top of the fixing block 17, and the top of the rotating rod 19 passes through the inner cavity of the third through hole and is fixedly connected to the bottom of the limiting plate 20, a limiting ring 21 and a second spring 22 are sleeved on the outer side of the rotating rod 19, and the limiting ring 21 and the rotating rod 19 are fixedly connected, and the upper and lower ends of the second spring 22 are respectively fixedly connected to the inner cavity top of the cylindrical cavity and the top of the limiting ring 21.

[0035] Working principle: When the utility model is in use, the servo motor 10 drives the placement box 2 to move horizontally to the bottom of the paper changing port 14, and then, by pulling the limit plate 20 to overcome the resistance of the second spring 22 and move vertically upward, and drive the block 18 to disengage from the inner cavity of the square groove, rotate the limit plate 20 with the rotating rod 19 as the center of the circle away from the cover plate 15, so that when the handle 16 is pulled and the cover plate 15 is driven to flip upward, the paper changing port 14 can be opened, and then, the T-shaped rods 25 on both sides are pulled away from each other to overcome the resistance of the adjacent first springs 26, so that the two T-shaped rods 25 are pulled out of the adjacent blind hole cavities, and when the screen plate 6 is pulled to move upward, the two connecting plates 24 can be taken out from the adjacent opening grooves 23 cavities, so as to open the placement box 2, and then it is convenient for the staff to replace the used glass fiber paper 5 in the placement box 2, which not only ensures the filtering effect of the filter element, but also reduces the work intensity of the staff in changing paper.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fire-resistant oil filter element, comprising a housing (1), characterized in that: A placement box (2) is provided near the left side of the inner cavity of the shell (1), and a moving mechanism is provided at the bottom of the placement box (2). A screen plate (6) is fitted on the top of the inner cavity of the placement box (2), and a clamping mechanism is provided between the screen plate (6) and the placement box (2). An oil inlet pipe (3) is fitted on the bottom of the inner cavity of the placement box (2). A through hole is provided on the left side of the placement box (2), and one end of the oil inlet pipe (3) passes through the through hole and the left side of the shell (1) and extends to the outside of the shell (1). The inner cavity of the placement box (2) is provided with A plurality of sheets of glass fiber paper (5), the upper surface of the oil inlet pipe (3) is arranged in close contact with the glass fiber paper (5), a paper changing port (14) is provided at the right side of the top of the shell (1), and a cover plate (15) is arranged in close contact with the top of the paper changing port (14), the left side of the cover plate (15) is hingedly arranged with the top of the shell (1), and a handle (16) is fixedly connected to the top of the cover plate (15) near the right side, a limiting mechanism is provided at the right side of the top of the cover plate (15), and an oil outlet (12) is provided at the middle position of the bottom of the shell (1).

2. The fire-resistant oil filter element according to claim 1, characterized in that: The moving mechanism comprises two moving blocks (7), and the two moving blocks (7) are respectively fixedly connected to the bottom of the placement box (2) near the front and rear sides, the moving block (7) located on the front side is provided with a threaded hole, and the inner cavity of the threaded hole is screwed with a threaded rod (8), the left side of the inner cavity of the shell (1) is fixedly installed with a first sealed bearing, the right side of the shell (1) is provided with a round hole near the bottom, and the inner cavity of the round hole is fixedly installed with a second sealed bearing, the right side of the round hole is provided with a connecting cover (9), and the left side of the connecting cover (9) is fixedly connected to the right side wall of the shell (1), the inner cavity of the connecting cover (9) is fixedly installed with a servo motor (10), the left end of the threaded rod (8) is inserted into the first sealed bearing, and the right end of the threaded rod (8) passes through the inner cavity of the second sealed bearing and is fixedly connected to the power output end of the servo motor (10).

3. A fire-resistant oil filter element as claimed in claim 2, characterized in that: A first through hole is formed on the moving block (7) located at the rear side, and a cross bar (11) is provided through the inner cavity of the first through hole. The left and right ends of the cross bar (11) are respectively fixedly connected to the left and right sides of the inner cavity of the outer shell (1).

4. The fire-resistant oil filter element according to claim 1, characterized in that: The outer wall of the oil inlet pipe (3) is sleeved with a sealing ring (4), and the sealing ring (4) is fixedly connected to the left side wall of the placement box (2).

5. The fire-resistant oil filter element according to claim 1, characterized in that: Drainage plates (13) are fixedly connected to the left and right sides of the inner cavity of the shell (1) near the bottom, and the other side of the drainage plate (13) is fixedly connected to the bottom of the inner cavity of the shell (1), and the front and rear sides of the two drainage plates (13) are fixedly connected to the front and rear sides of the inner cavity of the shell (1).

6. The fire-resistant oil filter element according to claim 1, characterized in that: The clamping mechanism comprises two connecting plates (24), and the two connecting plates (24) are respectively fixedly connected to the left and right sides of the screen plate (6); the tops of the left and right sides of the inner cavity of the placement box (2) are both provided with open grooves (23) matching with the connecting plates (24), and the two connecting plates (24) are respectively slidably connected to the inner cavities of adjacent open grooves (23); the left and right sides of the placement box (2) are both provided with second through holes near the top, and the inner cavities of the second through holes are connected to the inner cavities of adjacent open grooves (23); the two connecting plates (24) are both provided with blind holes on the sides away from each other; the inner cavities of the two second through holes are both slidably connected with T-shaped rods (25), and the longer end of the T-shaped structure of the T-shaped rod (25) is inserted into the inner cavity of the blind hole; the outer sides of the two T-shaped rods (25) are both sleeved with first springs (26), and the two ends of the first spring (26) are respectively fixedly connected to the T-shaped rod (25) and the placement box (2).

7. The fire-resistant oil filter element according to claim 1, characterized in that: The limiting mechanism comprises a limiting plate (20), and the limiting plate (20) is arranged at the right side of the top of the cover plate (15); a fixing block (17) is fixedly connected to the top of the right side of the shell (1); a cylindrical cavity is provided on the fixing block (17) near the top; a square groove is provided at the bottom of the inner cavity of the cylindrical cavity; a square block (18) is slidably connected to the inner cavity of the square groove; a rotating rod (19) is fixedly connected to the top of the square block (18); a third through hole is provided at the top of the fixing block (17); the top of the rotating rod (19) passes through the inner cavity of the third through hole and is fixedly connected to the bottom of the limiting plate (20); a limiting ring (21) and a second spring (22) are sleeved on the outer side of the rotating rod (19); the limiting ring (21) and the rotating rod (19) are fixedly connected; the upper and lower ends of the second spring (22) are respectively fixedly connected to the inner cavity top of the cylindrical cavity and the top of the limiting ring (21).

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