Modified fiber coalescence filter

Abstract

The present invention provides a modified fiber coalescence filter, and relates to a filter, the modified fiber coalescence filter comprises a filter cartridge, the filter cartridge is uniformly provided with filtration holes, the two ends of the filter cartridge are fixedly connected with end covers, the center positions of the end covers are rotatably connected with positioning rotary drums, and the ends, located in the filter cartridge, of the positioning rotary drums are fixedly connected with driven bevel gears; the side wall of the filter cartridge is rotatably connected with a driving shaft, the inner end of the driving shaft is fixedly connected with a driving bevel gear, the driving bevel gear is meshed with the two driven bevel gears, a coalescence filter element is placed in the positioning rotary drum, and a pre-filtering assembly is further arranged in the filter cartridge. When the comet type filter element is used, the filtering effect is guaranteed through two-stage filtering, meanwhile, the positioning rotating shaft can be driven to rotate after the driving shaft is rotated, the rotating directions of the adjacent rotating shafts are opposite after the positioning rotating shaft rotates, the filtering positions of the comet type filter element can be switched, backwashing of the comet type filter element can be better facilitated, and the service life of the filter element is effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and in particular to a modified fiber coalescing filter. Background Art

[0002] In the petrochemical field, it is often necessary to filter liquids. The most commonly used types of filter elements include coalescing filter elements and comet filter elements. Simple filters have many problems. On the one hand, the structures of many filtering devices are complex and there are numerous internal components, which not only leads to high manufacturing costs of the devices but also greatly increases the difficulty of use. On the other hand, in terms of filtration effect, the traditional single-stage filtration method is difficult to meet the increasingly stringent filtration requirements. Single-stage filtration can often only remove some impurities in the original liquid, and for some original liquids with small particles or complex components, it is impossible to achieve efficient and thorough filtration, making the quality of the filtered liquid difficult to reach the ideal standard. In addition, as the core component of the filtering device, the service life and maintenance convenience of the filter element are also important issues. In the prior art, the filter element is prone to a decrease in filtration efficiency due to blockage by impurities after long-term use, and due to the limitations of the filter element structure and the overall design of the device, it is difficult to perform maintenance operations such as backwashing, and it is difficult to flexibly switch the filtration position of the filter element, which not only increases the maintenance cost but also requires frequent replacement of the filter element, seriously affecting the production efficiency and greatly limiting the wide application and long-term stable operation of the filtering device. For this reason, those skilled in the art have proposed a modified fiber coalescing filter to solve the problems raised in the above background. Summary of the Invention

[0003] The purpose of the present invention is to provide a modified fiber coalescing filter to solve the technical problems existing in the prior art.

[0004] To solve the above technical problems, a modified fiber coalescing filter provided by the present invention includes a filter cylinder. Filter holes are evenly distributed on the filter cylinder. End caps are fixedly connected to both ends of the filter cylinder. Positioning rotating cylinders are rotatably connected to the central positions of the end caps. Driven bevel gears are fixedly connected to the ends of the positioning rotating cylinders located inside the filter cylinder. A driving shaft is rotatably connected to the side wall of the filter cylinder. A driving bevel gear is fixedly connected to the inner end of the driving shaft. The driving bevel gears are respectively engaged with the two driven bevel gears. Coalescing filter elements are placed inside the positioning rotating cylinders. A pre-filtering assembly is also provided inside the filter cylinder.

[0005] As a further solution of the present invention: The pre-filtering assembly includes a plurality of positioning rotating shafts rotatably connected to the end cap. The positioning rotating shafts are evenly arranged on the end cap, and the number of positioning rotating shafts is an even number. One end of each positioning rotating shaft is fixedly connected with an upper driven gear at intervals. The end of the positioning rotating cylinder away from the filter cylinder is fixedly connected with a driving gear. The upper driven gears are all meshed with the driving gear. A lower driven gear is fixedly connected to the outside of the positioning rotating shaft without an upper driven gear. The lower driven gear is arranged at the end of the positioning rotating shaft away from the upper driven gear, and the lower driven gear is meshed with the driving gear on the other side. A filtering unit is fixedly connected to the outside of each positioning rotating shaft.

[0006] As a further solution of the present invention: The filtering unit includes a rotating plate fixedly connected to the positioning rotating shaft. A positioning needle is fixedly connected to the edge of the side of the rotating plate close to the positioning rotating cylinder. Comet-type filters are evenly arranged outside the positioning needle, and one end of the comet nucleus of the comet-type filter is connected to the positioning needle.

[0007] As a further solution of the present invention: Sealing strips are fixedly connected to the edges of the rotating plate away from the positioning rotating cylinder. The sealing strips between adjacent positioning rotating cylinders are matched in pairs to achieve sealing.

[0008] As a further solution of the present invention: The sealing strip is made of soft rubber material.

[0009] As a further solution of the present invention: The number of the positioning rotating shafts is 12 - 30.

[0010] As a further solution of the present invention: A driving knob is fixedly connected to the outside of the driving shaft.

[0011] As a further solution of the present invention: An installation plate is connected to the outside of the end cap through a connecting column. A discharge pipe is fixedly connected to the installation plate, and the discharge pipe is communicated with the inside of the positioning rotating cylinder.

[0012] Adopting the above technical solutions, the present invention has the following beneficial effects: The structure of the present invention is simple and easy to use. When in use, the original liquid to be filtered enters the inside of the filter cylinder through the filter holes, and then passes through the filtering unit to the innermost side. The comet-type filter in the filtering unit can preliminarily filter the original liquid. The filtered original liquid will pass through the coalescing filter again and then be discharged through the discharge pipe. The double-stage filtration ensures the filtration effect. At the same time, when the driving shaft is rotated, it will drive the positioning rotating shaft to rotate. After the positioning rotating shaft rotates, the adjacent rotating shafts rotate in opposite directions, so that the comet-type filter can switch the filtering position and is also more convenient for the backwashing of the comet-type filter, effectively improving the service life of the filter element and being worthy of promotion. Description of the Drawings

[0013] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of a modified fiber coalescing filter; Figure 2 It is a schematic partial structural diagram of a modified fiber coalescing filter; Figure 3 It is a schematic structural diagram of a filter cartridge in a modified fiber coalescing filter; Figure 4 It is a schematic internal structural diagram of a modified fiber coalescing filter; Figure 5 It is Figure 4 The partial enlarged view at A in Figure 6 It is a schematic diagram of a driving bevel gear and its partial connection structure in a modified fiber coalescing filter; Figure 7 It is a schematic structural diagram of a positioning rotating cylinder in a modified fiber coalescing filter; Figure 8 It is a schematic sectional view of a positioning rotating cylinder in a modified fiber coalescing filter; Figure 9 It is a schematic semi-sectional structure diagram of a modified fiber coalescing filter; Figure 10 It is a schematic comparison structure diagram of a rotating plate before and after rotation in a modified fiber coalescing filter; Reference numerals: 1, filter cartridge; 2, filter holes; 3, end cover; 4, positioning rotating cylinder; 5, driven bevel gear; 6, driving shaft; 7, driving bevel gear; 8, coalescing filter element; 9, pre-filter assembly; 10, positioning rotating shaft; 11, upper driven gear; 12, driving gear; 13, lower driven gear; 14, filtering unit; 15, rotating plate; 16, positioning pin; 17, comet-shaped filter element; 18, sealing strip; 19, driving knob; 20, connecting column; 21, mounting plate; 22, discharge pipe. Specific embodiments

[0015] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "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 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 invention can be understood according to specific circumstances.

[0018] The following further explains and illustrates the present invention in conjunction with specific embodiments.

[0019] Embodiment 1: Please refer to Figure 1 , Figure 2 and Figure 3 , a modified fiber coalescing filter, including a filter cylinder 1, filter holes 2 are uniformly arranged on the filter cylinder 1, end caps 3 are fixedly connected to both ends of the filter cylinder 1, positioning rotating cylinders 4 are rotatably connected to the central positions of the end caps 3, driven bevel gears 5 are fixedly connected to one ends of the positioning rotating cylinders 4 located inside the filter cylinder 1, a driving shaft 6 is rotatably connected to the side wall of the filter cylinder 1, a driving knob 19 is fixedly connected to the outside of the driving shaft 6, and the driving knob 19 can drive the driving shaft 6 to rotate when rotated. A driving bevel gear 7 is fixedly connected to the inner end of the driving shaft 6, the driving bevel gear 7 meshes with the two driven bevel gears 5 respectively, a coalescing filter element 8 is placed inside the positioning rotating cylinder 4, and a pre-filtering assembly 9 is further arranged inside the filter cylinder 1.

[0020] During use, after the equipment is installed, filtration can be carried out. The original liquid enters the interior through the filter holes 2 on the filter cylinder 1. When passing through the filter cylinder 1, larger impurities can be filtered out. The original liquid entering the interior of the filter cylinder 1 is the preliminarily filtered original liquid. Then, the preliminarily filtered liquid inside the filter cylinder 1 enters the central position of the entire filter through the pre-filtering assembly 9. At this place, the liquid will pass through the coalescing filter element 8 inside the positioning rotating cylinder 4 and then be discharged through the positioning rotating cylinder 4.

[0021] Embodiment 2: Please refer to Figure 4 , Figure 5 andFigure 6 , based on the previous embodiment, this embodiment gives a specific structure of the pre-filtering component 9: The pre-filtering component 9 includes a plurality of positioning rotating shafts 10 rotatably connected to the end cover 3. The positioning rotating shafts 10 are evenly arranged on the end cover 3, and the number of positioning rotating shafts 10 is an even number. One end of each positioning rotating shaft 10 is fixedly connected with an upper driven gear 11 at intervals. One end of the positioning rotating cylinder 4 far away from the filter cylinder 1 is fixedly connected with a driving gear 12. The upper driven gears 11 are all meshed with the driving gear 12. A lower driven gear 13 is fixedly connected to the outer side of the positioning rotating shaft 10 without the upper driven gear 11. The lower driven gear 13 is arranged at one end of the positioning rotating shaft 10 far away from the upper driven gear 11, and the lower driven gear 13 is meshed with the driving gear 12 on the other side. A filtering unit 14 is fixedly connected to the outer side of each positioning rotating shaft 10.

[0022] The pre-filtering component 9 includes a filtering unit 14 fixedly connected to the positioning rotating shaft 10. Different filtering units 14 can be selected according to requirements for the filtering unit 14. For example, circular filter elements are fixedly arranged on the outer side of the positioning rotating shaft 10, and adjacent circular filter elements are tangent to each other to achieve filtration. By rotating the driving shaft 6, the driving shaft 6 will drive the driving bevel gear 7 to rotate, the driving bevel gear 7 will drive the driven bevel gear 5 to rotate, and the driven bevel gear 5 will synchronously drive the upper and lower positioning rotating cylinders 4 to rotate. The rotation directions of the upper and lower positioning rotating cylinders 4 are opposite. Therefore, during the rotation process, the upper and lower different driving gears 12 will be driven to rotate in different directions. As the driving gears 12 rotate in different directions, the upper driven gears 11 and the lower driven gears 13 meshed with them will rotate synchronously. Since the upper driven gears 11 and the lower driven gears 13 on the outer side of the positioning rotating shaft 10 are arranged at intervals and offset up and down, the rotation directions between adjacent positioning rotating shafts 10 are opposite. Therefore, the filtering units 14 on the outer sides of adjacent positioning rotating shafts 10 will be driven to rotate relative to each other or away from each other.

[0023] Please refer to Figure 7 、 Figure 8 and Figure 9 , the filtering unit 14 includes a rotating plate 15 fixedly connected to the positioning rotating shaft 10. A positioning pin 16 is fixedly connected to the edge of the side of the rotating plate 15 close to the positioning rotating cylinder 4. Comet-shaped filter elements 17 are evenly arranged on the outer side of the positioning pin 16, and one end of the comet nucleus of the comet-shaped filter element 17 is connected to the positioning pin 16. Sealing strips 18 are fixedly connected to the edges of the rotating plate 15 far away from the positioning rotating cylinder 4. The sealing strips 18 between adjacent positioning rotating cylinders 4 are matched in pairs to achieve sealing. When the comet-shaped filter element 17 is adjusted in place, the sealing strips 18 on the other side of the rotating plate 15 will abut against each other to achieve sealing. And the sealing strips 18 made of soft rubber material can ensure the sealing effect.

[0024] One end of the adjacent rotating plates 15 facing the inner side is either close to or far from each other. In the initial stage, two adjacent rotating plates 15 come closer, and their adjacent side edges are connected to the comet filter element 17 by positioning pins 16, so that the comet filter element 17 can be used for preliminary filtration. The comet filter element 17 has a nucleus end and a tail end. During the preparation of the device, the positioning pins 16 are successively passed through the nucleus of the comet filter element 17, and the position of the tail is adjusted to a suitable position, so that the excellent filtration performance of the comet filter element 17 can be fully utilized during filtration. After filtering for a period of time, the positioning rotating shaft 10 is rotated, the rotating plates 15 rotate, the comet filter element 17 is separated from another adjacent comet filter element 17, and instead approaches the comet filter element 17 on the other side, and a new filtration unit 14 is formed.

[0025] The advantages are as follows: First, after the comet filter elements 17 are separated, they can be better cleaned by backwashing. The cleaning effect is poor when they are stacked together. Second, a new filtration unit 14 is formed, the original filtration structure is destroyed, and the new comet filter elements 17 can reduce the filtration dead angle. For example, the right side of the original comet filter element 17 is adjacent to the rotating plate 15. After the position is adjusted, the left side of the comet filter element 17 will be adjacent to the rotating plate 15. The filtrate is filtered through the gap between the two rotating plates 15. Due to the obstruction of the tail, the central flow rate will be relatively larger. After adjustment, the central position of filtration can be changed, and the comet filter element 17 can achieve the most sufficient filtration effect. The positioning pins 16 can be connected to the rotating plates 15 by clamping. After filtration, the original liquid can be discharged through the discharge pipe 22. Please refer to Figure 10 , Figure 10 Specifically, the position changes of the comet filter element 17 before and after adjustment are given, and the reference numerals of the positioning rotating shaft 10 before and after the change are the same shaft.

[0026] The number of the positioning rotating shafts 10 is 12 - 30. The number of the positioning rotating shafts 10 determines the number of the comet filter elements 17 set. The number should not be too small. Too few comet filter elements 17 will lead to a reduction in filtration efficiency, and the structure will be very cumbersome and not compact enough. If the number is too large, the structural complexity will be greatly increased, faults are likely to occur, and the production difficulty will also increase.

[0027] The outer side of the end cover 3 is connected with a mounting plate 21 through a connecting column 20. A discharge pipe 22 is fixedly connected to the mounting plate 21, and the discharge pipe 22 is communicated with the inside of the positioning rotating cylinder 4.

[0028] Working principle: When in use, the equipment can be installed and filtering can be carried out. The raw liquid enters the interior through the filter hole 2 on the filter cartridge 1. When passing through the filter cartridge 1, larger impurities can be filtered out. The raw liquid entering the interior of the filter cartridge 1 is the raw liquid that has been preliminarily filtered. After that, the preliminary filtered liquid inside the filter cartridge 1 passes through the pre-filter component 9 and enters the center position of the entire filter. There, the liquid will pass through the coalescing filter element 8 inside the positioning drum 4, and then be discharged through the positioning drum 4.

[0029] The pre-filter assembly 9 includes a filter unit 14 fixedly connected to the positioning shaft 10. Different filter units 14 can be selected according to needs. For example, circular filter elements are fixed on the outside of the positioning shaft 10, and adjacent circular filter elements are tangent to each other, thereby achieving filtration. By rotating the drive shaft 6, the drive shaft 6 will drive the active bevel gear 7 to rotate, and the active bevel gear 7 will drive the driven bevel gear 5 to rotate, and the driven bevel gear 5 will synchronously drive the upper and lower positioning drums 4 to rotate. The rotation directions of the upper and lower positioning drums 4 are opposite. Therefore, during the rotation process, the upper and lower different driving gears 12 will be driven to rotate in different directions. The driving gear 12 rotates in different directions, and the upper driven gear 11 and the lower driven gear 13 engaged therewith will rotate synchronously. Since the upper driven gear 11 and the lower driven gear 13 on the outside of the positioning shaft 10 are staggered above and below, the rotation directions of adjacent positioning shafts 10 are opposite, thereby driving the filter units 14 on the outside of adjacent positioning shafts 10 to rotate relative to or away from each other.

[0030] The inner ends of adjacent rotating plates 15 are either close to or far away from each other. In the initial stage, two adjacent rotating plates 15 are close to each other, and their close side edges are connected to the comet filter element 17 through the positioning needle 16, so that the comet filter element 17 can be used for preliminary filtration. The comet filter element 17 has a nucleus end and a tail end. In the process of preparing the device, the positioning needle 16 is used to pass through the nucleus of the comet filter element 17 in turn, and the position of the tail is adjusted to a suitable position. During filtration, the high-quality filtration performance of the comet filter element 17 can be fully utilized. After filtering for a period of time, the positioning shaft 10 is rotated, the rotating plate 15 rotates, and the comet filter element 17 is separated from the other comet filter element 17 adjacent to it, and then approaches the comet filter element 17 on the other side to form a new filtration unit 14.

[0031] The advantages are as follows: First, after the comet filter element 17 is separated, it can be better cleaned by backwashing, and the cleaning effect is poor when they are stacked together; Second, a new filtering unit 14 is formed, the original filtering structure is damaged, and the new comet filter element 17 can reduce the dead ends of filtration. For example, the right side of the original comet filter element 17 was adjacent to the rotating plate 15, and after adjusting the position, the left side of the comet filter element 17 will be adjacent to the rotating plate 15. The filtrate is filtered through the gap between the two rotating plates 15. Due to the obstruction of the comet tail, the central flow rate will be relatively larger. After adjustment, the central position of filtration can be changed, and the comet filter element 17 can achieve the most sufficient filtration effect. The positioning pin 16 can be connected to the rotating plate 15 by clamping, and the original liquid after filtration can be discharged through the discharge pipe 22.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modified fiber coalescing filter, comprising a filter cartridge (1) which is evenly provided with filter holes (2), and end caps (3) fixedly connected to both ends of the filter cartridge (1), characterized in that, A positioning rotating cylinder (4) is rotatably connected to the center position of the end cover (3). One end of the positioning rotating cylinder (4) located inside the filter cylinder (1) is fixedly connected with a driven bevel gear (5). A driving shaft (6) is rotatably connected to the side wall of the filter cylinder (1). The inner end of the driving shaft (6) is fixedly connected with a driving bevel gear (7). The driving bevel gear (7) meshes with the two driven bevel gears (5) respectively. A coalescing filter element (8) is placed inside the positioning rotating cylinder (4), and a pre-filtering assembly (9) is further arranged inside the filter cylinder (1).

2. The modified fiber coalescing filter according to claim 1, wherein The pre-filtering assembly (9) includes a plurality of positioning rotating shafts (10) rotatably connected to the end cover (3). The positioning rotating shafts (10) are evenly arranged on the end cover (3). The number of the positioning rotating shafts (10) is an even number. One end of the positioning rotating shaft (10) is fixedly connected with an upper driven gear (11) at intervals. One end of the positioning rotating cylinder (4) far away from the filter cylinder (1) is fixedly connected with a driving gear (12). The upper driven gears (11) all mesh with the driving gear (12). A lower driven gear (13) is fixedly connected to the outside of the positioning rotating shaft (10) where no upper driven gear (11) is arranged. The lower driven gear (13) is arranged at one end of the positioning rotating shaft (10) far away from the upper driven gear (1). The lower driven gear (13) meshes with the driving gear (12) on the other side. A filtering unit (14) is fixedly connected to the outside of the positioning rotating shaft (10).

3. The modified fiber coalescing filter according to claim 2, wherein, The filtering unit (14) includes a rotating plate (15) fixedly connected to the positioning rotating shaft (10). A positioning pin (16) is fixedly connected to the side edge of the rotating plate (15) close to the positioning rotating cylinder (4). Comet-type filter elements (17) are evenly arranged outside the positioning pin (16). One end of the comet nucleus of the comet-type filter element (17) is connected to the positioning pin (16).

4. The modified fiber coalescing filter according to claim 3, wherein Sealing strips (18) are fixedly connected to the edges of the rotating plate (15) far away from the positioning rotating cylinder (4). The sealing strips (18) between adjacent positioning rotating cylinders (4) are matched in pairs to achieve sealing.

5. The modified fiber coalescing filter according to claim 4, characterized in that, The sealing strip (18) is made of soft rubber material.

6. The modified fiber coalescing filter according to claim 2, wherein The number of the positioning rotating shafts (10) is 12 - 30.

7. The modified fiber coalescing filter according to claim 1, wherein, A driving knob (19) is fixedly connected to the outside of the driving shaft (6).

8. The modified fiber coalescing filter according to claim 1, wherein, An installation plate (21) is connected to the outside of the end cover (3) through a connecting column (20). A discharge pipe (22) is fixedly connected to the installation plate (21). The discharge pipe (22) is communicated with the inside of the positioning rotating cylinder (4).

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