A kind of backwash filter for residual oil hydrogenation raw material

Abstract

The present invention discloses a residual oil hydrogenation raw material backwashing filter, comprising a cylinder and a plurality of filter elements, an upper end cover is fixedly installed on the upper end of the cylinder, a lower end cover is fixedly installed on the lower end of the cylinder, the filter element is installed on a partition, a plurality of oil outlet holes are arranged on the partition, the oil outlet holes are connected to the inside of the filter element, a mounting ring is arranged on the upper end of the cylinder, the mounting ring divides the cylinder body into an oil inlet chamber and an oil outlet chamber, the partition is placed on the mounting ring around, the filter element is located in the oil inlet chamber, a plurality of shockproof plates are arranged below the mounting ring, the shockproof plates are fixedly connected to the cylinder respectively, a plurality of limiting holes are arranged on the shockproof plates, an oil outlet pipe connected to the oil outlet chamber is arranged on the upper end cover, and an oil inlet pipe connected to the oil inlet chamber is arranged on the lower end cover. The residual oil hydrogenation raw material backwashing filter of the present invention reduces the vibration of the filter element during the filtering process, retains the promoting effect of the vibration of the filter element on the backwashing process during the backwashing process, and has the advantage of convenient loading and unloading.

Description

Technical Field

[0001] The invention belongs to the technical field of filters, and in particular relates to a residual oil hydrogenation raw material backwashing filter. Background Art

[0002] The applicant disclosed an aviation kerosene filter in the invention patent with application number CN201820708461.8. Specifically disclosed is an aviation kerosene filter, specifically disclosed are a cylinder, a filter element, an upper end cover at the upper end of the cylinder, a lower end cover at the lower end of the cylinder, a separation plate inside the cylinder, and a filter element including a fixing plate, a fixing ring, an inner rib and a spiral ring and other technical features. Its working principle is: a certain gap is formed between two adjacent spiral rings in the filter element, and a certain gap is formed between two adjacent inner ribs, thereby forming a filter element with a filtering effect. The booster pump fills the oil chamber with oil with a certain pressure, and the oil enters the filter element from the outside of the filter element through the gap in the filter element. Impurities in the oil cannot enter the filter element through the gap in the filter element. The filtered oil enters the oil outlet chamber to complete the filtration. The pitch of the spiral ring and the distance between two adjacent inner ribs in the skeleton are adjusted, so that a filter element with different filtration levels can be obtained to meet different use requirements. After continuous research and application, it is found that it has important application value in the field of residual oil hydrogenation. In addition to being able to filter, the filter also has backwashing capabilities, which further increases the service life of the filter and can ensure the filtering effect for a long time. However, in actual application, it was found that the filter still had the following problems: 1. Although the fixing plates of all filter elements are fixed on a large circular plate, which reduces the shaking of the filter element under high pressure to a certain extent, the shock absorption effect is limited because there is no fixed connection between the circular plate and the cylinder; 2. When using the filter to filter residual oil hydrogenation raw materials, in order to improve the filtration efficiency, the length of the filter element is designed to be very long (about 1.5-2 meters), while the diameter of the filter element is small (about 2-2.5 centimeters), which further increases the shaking of the filter element during the filtration process. Only by setting a circular plate at the end of the filter element for fixing, the effect of stabilizing the filter element cannot be achieved; 3. The circular plate forms a blocking effect on the oil to be filtered in the oil inlet chamber, which reduces the oil pressure around the filter element, and a high-power boost pump needs to be matched to meet the needs of oil boost filtration; 4. Appropriate shaking of the filter element during backwashing can improve the flushing effect, and the setting of the circular plate limits the shaking of the filter element during backwashing of the filter element. Summary of the invention

[0003] In order to solve the above technical problems, the technical scheme adopted by the present invention is: a residual oil hydrogenation raw material backwash filter, comprising a cylinder and a plurality of filter elements, an openable upper end cover is fixedly installed on the upper end of the cylinder, and an openable lower end cover is fixedly installed on the lower end of the cylinder. The filter element comprises a fixing plate, a fixing ring, an inner rib and a spiral ring. The filter element is installed on a partition plate, and a plurality of oil outlet holes are provided on the partition plate. The fixing ring is fixedly connected to the lower surface of the partition plate, and the oil outlet holes are connected to the interior of the filter element. A mounting ring is provided at the upper end of the cylinder, and the mounting ring divides the cylinder body into an oil inlet chamber and an oil outlet chamber. The partition plate is placed on the mounting ring around the mounting ring, and the filter element is located in the oil inlet chamber. A plurality of shockproof plates are arranged in sequence from top to bottom below, and the shockproof plates are fixedly connected to the cylinder respectively. A plurality of limiting holes are provided on the shockproof plates for the filter elements to pass through respectively. An oil outlet pipe connected to the oil outlet chamber is provided on the upper end cover, and an oil inlet pipe connected to the oil inlet chamber is provided on the lower end cover.

[0004] As a preferred embodiment of the above technical solution, there are gaps between the four sides of the shockproof plate and the inner wall of the cylinder, and the shockproof plate is fixedly connected to the cylinder through a plurality of connecting plates.

[0005] As a preferred embodiment of the above technical solution, a plurality of pressure rods are fixedly connected to the lower surface of the upper end cover, the lower ends of the pressure rods support the partition, the upper end cover is connected to the upper end of the cylinder body by a plurality of bolts around, and a sealing ring is provided between the partition and the mounting ring.

[0006] As a preferred embodiment of the above technical solution, the limiting hole on the shockproof plate includes a large mouth and a small mouth, and the large mouth and the small mouth are connected to each other. Rotating the partition plate can move the filter element from the large mouth to the small mouth or from the small mouth to the large mouth. When the filter element is located at the small mouth, there is a contact surface between the filter element and the inner wall of the limiting hole. When the filter element is located at the large mouth, there is a gap between the filter element and the inner wall of the limiting hole.

[0007] As a preferred embodiment of the above technical solution, the small mouth is semicircular, and the diameter of the small mouth is equal to the diameter of the filter element.

[0008] As a preferred embodiment of the above technical solution, a pointing arrow is provided on the partition, and a filtering position mark and a backwashing position mark are provided on the inner wall of the oil outlet cavity. When the pointing arrow points to the filtering position mark, the filter element is located at the small mouth, and when the pointing arrow points to the backwashing position mark, the filter element is located at the large mouth.

[0009] As a preferred embodiment of the above technical solution, the upper surface of the partition is provided with a plurality of filter positioning grooves and a plurality of backwash positioning grooves, the filter positioning grooves correspond to the pressure rods one-to-one, and the backwash positioning grooves correspond to the pressure rods one-to-one. When the pointing arrows point to the filter position lines, the pressure rods are respectively inserted into the corresponding filter positioning grooves, and when the pointing arrows point to the backwash position lines, the pressure rods are respectively inserted into the corresponding backwash positioning grooves.

[0010] As a preferred embodiment of the above technical solution, the inner diameters of the filtering positioning groove and the backwashing positioning groove gradually decrease from top to bottom.

[0011] As a preferred embodiment of the above technical solution, a handle is fixedly connected to the partition.

[0012] The beneficial effects of the present invention are as follows: the residual oil hydrogenation feedstock backwashing filter of the present invention reduces the vibration of the filter element during the filtering process, retains the promoting effect of the filter element vibration on the backwashing process during the backwashing process, and has the advantage of convenient loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0014] Figure 2 It is a partial structural schematic diagram of the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the filter element;

[0016] Figure 4 It is a structural diagram of the shockproof plate. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-4 As shown, a residual oil hydrogenation raw material backwashing filter includes a cylinder 1 and a plurality of filter elements 2. An openable upper end cover 3 is fixedly installed on the upper end of the cylinder 1, and an openable lower end cover 4 is fixedly installed on the lower end of the cylinder 1. The filter element 2 includes a fixing plate 5, a fixing ring 6, an inner rib 7 and a spiral ring 8. The filter element 2 is installed on a partition 9, and a plurality of oil outlet holes 10 are provided on the partition 9. The fixing ring 6 is fixedly connected to the lower surface of the partition 9, and the oil outlet holes 10 are connected to the inside of the filter element 2. The upper end of the cylinder 1 is provided with a mounting ring 11 The mounting ring 11 divides the interior of the cylinder 1 into an oil inlet chamber 12 and an oil outlet chamber 13. The partition 9 is placed on the mounting ring 11 around the mounting ring 11. The filter element 2 is located in the oil inlet chamber 12. A number of shockproof plates 14 are arranged in sequence from top to bottom below the mounting ring 11. The shockproof plates 14 are respectively fixedly connected to the cylinder 1. The shockproof plates 14 are provided with a number of limiting holes 15 for the filter element 2 to pass through. The upper end cover 3 is provided with an oil outlet pipe 16 connected to the oil outlet chamber 13, and the lower end cover 4 is provided with an oil inlet pipe 17 connected to the oil inlet chamber 12. The filter element 2 is installed on the partition 9, and then the whole is placed in the cylinder 1 from the oil outlet chamber 13, and the partition 9 is placed on the mounting ring 11. During filtering, the filter element 2 is kept stable by the shockproof plate 14, which reduces the vibration caused by the internal and external pressure difference of the filter element 2, reduces the deformation of the filter element 2 caused by long-term vibration, and improves the service life of the filter element 2.

[0021] Furthermore, there are gaps around the anti-vibration plate 14 and the inner wall of the cylinder 1, and the anti-vibration plate 14 is fixedly connected to the cylinder 1 through a plurality of connecting plates 18. In this way, the influence of the anti-vibration plate 14 on the hydraulic pressure in the oil inlet chamber 12 can be reduced, the hydraulic pressure in the oil inlet chamber 12 is ensured to be stable, and the filtering effect of the filter element 2 is ensured.

[0022] Furthermore, a plurality of pressure rods 19 are fixedly connected to the lower surface of the upper end cover 3, and the lower end of the pressure rods 19 supports the partition 9. The upper end cover 3 is connected to the upper end of the cylinder 1 by a plurality of bolts, and a sealing ring is provided between the partition 9 and the mounting ring 11. After the upper end cover 3 is closed on the cylinder 1, the pressure rods 19 are used to support the partition 9, so that the oil inlet chamber 12 and the oil outlet chamber 13 are kept sealed. After removing the upper end cover 3, the partition 9 and the filter element 2 can be easily taken out of the cylinder 1.

[0023] Furthermore, the limiting hole 15 on the shockproof plate 14 includes a large mouth portion 20 and a small mouth portion 21, and the large mouth portion 20 and the small mouth portion 21 are connected to each other. The rotating partition plate 9 can move the filter element 2 from the large mouth portion 20 to the small mouth portion 21 or from the small mouth portion 21 to the large mouth portion 20. When the filter element 2 is located at the small mouth portion 21, there is a contact surface between the filter element 2 and the inner wall of the limiting hole 15. When the filter element 2 is located at the large mouth portion 20, there is a gap between the filter element 2 and the inner wall of the limiting hole 15. During filtering, the small mouth portion 21 is close to the filter element 2, reducing the vibration amplitude of the filter element 2. During backwashing, the filter element 2 is located at the large mouth portion 20, and there is no obstruction around the filter element 2, so it can vibrate at the maximum amplitude, thereby improving the backwashing effect.

[0024] Furthermore, the small mouth 21 is semicircular, and the diameter of the small mouth 21 is equal to the diameter of the filter element 2. The semicircular small mouth 21 can ensure the maximum contact area with the filter element 2, reduce the vibration of the filter element 2, and minimize the impact on the filtration area of ​​the filter element 2 (only half of the filter element 2 is contacted by the small mouth 21, and the filtration effect of the other half is not affected)

[0025] Furthermore, a pointing arrow 22 is provided on the partition 9, and a filtering position mark 23 and a backwashing position mark 24 are provided on the inner wall of the oil outlet cavity 13. When the pointing arrow 22 points to the filtering position mark 23, the filter element 2 is located at the small mouth 21, and when the pointing arrow 22 points to the backwashing position mark 24, the filter element is located at the large mouth 20. The pointing arrow 22 is used to position the partition 9.

[0026] Further, the upper surface of the partition 9 is provided with a plurality of filter positioning grooves 25 and a plurality of backwash positioning grooves 26, the filter positioning grooves 25 correspond to the pressure rods 19 one by one, the backwash positioning grooves 26 correspond to the pressure rods 19 one by one, and when the pointing arrow 22 points to the filter position engraved line 23, the pressure rods 19 are respectively inserted into the corresponding filter positioning grooves 25, and when the pointing arrow 22 points to the backwash position engraved line 24, the pressure rods 19 are respectively inserted into the corresponding backwash positioning grooves 26. The filter positioning grooves 25 and the plurality of backwash positioning grooves 26 are respectively provided for the pressure rods 19 to be inserted during filtering and backwashing.

[0027] Furthermore, the inner diameters of the filter positioning groove 25 and the backwash positioning groove 26 are gradually reduced from top to bottom, and the lower end diameter of the pressure rod 19 is equal to the lower end diameter of the filter positioning groove 25 and the lower end diameter of the backwash positioning groove 26. Since the relative position of the upper end cover 3 and the cylinder 1 is fixed, when the upper end cover 3 is installed, the pressure rod 19 can be used to form a secondary positioning for the partition 9. The upper end cover 3 and the cylinder 1, and the lower end cover 4 and the cylinder 1 are sealed and connected by sealing flanges.

[0028] Further, a handle 27 is fixedly connected to the partition plate 9. The handle 27 is conducive to rotating the partition plate 9 and is also conducive to loading and unloading the partition plate 9.

[0029] It is worth mentioning that the technical features such as internal ribs and metal wires involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected according to the conventional methods in the field, and should not be regarded as the inventive point of this patent. This patent will not be further elaborated.

[0030] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A residual oil hydrogenation raw material backwash filter, comprising a cylinder and a plurality of filter elements, wherein an openable upper end cover is fixedly installed on the upper end of the cylinder, and an openable lower end cover is fixedly installed on the lower end of the cylinder, and the filter element comprises a fixing plate, a fixing ring, an inner rib and a spiral ring, characterized in that: The filter element is installed on the partition, and a plurality of oil outlet holes are arranged on the partition. The fixing ring is fixedly connected to the lower surface of the partition, and the oil outlet holes are connected to the inside of the filter element. A mounting ring is arranged on the upper end of the cylinder body, and the mounting ring divides the inner part of the cylinder body into an oil inlet chamber and an oil outlet chamber. The partition is placed on the mounting ring around the mounting ring, and the filter element is located in the oil inlet chamber. A plurality of shockproof plates are arranged in sequence from top to bottom below the mounting ring, and the shockproof plates are fixedly connected to the cylinder body respectively. A plurality of limiting holes are arranged on the shockproof plates for the filter element to pass through respectively. A An oil outlet pipe, an oil inlet pipe connected to the oil inlet chamber is provided on the lower end cover, the limiting hole on the shockproof plate includes a large mouth portion and a small mouth portion, the large mouth portion and the small mouth portion are connected to each other, and the rotating partition can move the filter element from the large mouth portion to the small mouth portion or from the small mouth portion to the large mouth portion, when the filter element is located at the small mouth portion, there is a contact surface between the filter element and the inner wall of the limiting hole, when the filter element is located at the large mouth portion, there is a gap between the filter element and the inner wall of the limiting hole, the upper end cover and the cylinder body, and the lower end cover and the cylinder body are sealed and connected respectively by sealing flanges.

2. The residual oil hydrogenation feed backwash filter according to claim 1, characterized in that: There are gaps between the four sides of the shockproof plate and the inner wall of the cylinder, and the shockproof plate is fixedly connected to the cylinder through a plurality of connecting plates.

3. The residual oil hydrogenation feed backwash filter according to claim 2, characterized in that: The lower surface of the upper end cover is fixedly connected with a plurality of pressure rods, the lower ends of the pressure rods support the partition, the upper end cover is connected to the upper end of the cylinder body through a plurality of bolts, and a sealing ring is provided between the partition and the mounting ring.

4. The residual oil hydrogenation feed backwash filter according to claim 1, characterized in that: The small mouth is semicircular, and the diameter of the small mouth is equal to the diameter of the filter element.

5. The residual oil hydrogenation feed backwash filter according to claim 4, characterized in that: The partition is provided with a pointing arrow, and the inner wall of the oil outlet cavity is provided with filtering position marks and backwashing position marks. When the pointing arrow points to the filtering position marks, the filter element is located at the small mouth, and when the pointing arrow points to the backwashing position marks, the filter element is located at the large mouth.

6. The residual oil hydrogenation feedstock backwash filter according to claim 5, characterized in that: The upper surface of the partition is provided with a plurality of filter positioning grooves and a plurality of backwash positioning grooves. The filter positioning grooves correspond to the pressure rods one by one, and the backwash positioning grooves correspond to the pressure rods one by one. When the pointing arrows point to the filter position marks, the pressure rods are respectively inserted into the corresponding filter positioning grooves, and when the pointing arrows point to the backwash position marks, the pressure rods are respectively inserted into the corresponding backwash positioning grooves.

7. The residual oil hydrogenation feedstock backwash filter according to claim 6, characterized in that: The inner diameters of the filtering positioning groove and the backwashing positioning groove both gradually decrease from top to bottom.

8. The residual oil hydrogenation feedstock backwash filter according to claim 7, characterized in that: A handle is fixedly connected to the partition.

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