Special coalescence filter element for polycarbonate solution

Abstract

The utility model relates to the technical field of coalescence filter elements, and discloses a coalescence filter element special for polycarbonate solution, which comprises an outer framework, one end of the outer framework is provided with an upper end cover, the inner wall of the upper end cover is provided with a mounting groove, and the inner wall of the mounting groove is slidably connected with a plurality of sliding rings. A plurality of supporting columns are fixedly connected between every two adjacent sliding rings, a first rotating column is rotationally connected between every two adjacent sliding rings, a pressing block is fixedly connected to the outer wall of each first rotating column, a second rotating column is fixedly connected to one end of each pressing block, and the two ends of each second rotating column are rotationally connected with the inner wall of the corresponding mounting groove. The outer wall of the sliding ring is fixedly connected with a rack. According to the utility model, the upper end cover is convenient to mount and dismount by rotating the pressing block, the filter element is maintained, and the multi-layer structure meets the requirement of separating a water phase from a polycarbonate solution and the requirement of compatibility between the coalescer and a saline-alkaline solution medium.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coalescing filter element, especially to a coalescing filter element special for polycarbonate solution. BACKGROUND

[0002] The coalescing filter element is a key filter element for separating dispersed phase in liquid mixture, and is widely used in petroleum chemical industry, natural gas and power industry. The coalescing filter element is usually composed of multiple layers of filter materials with different structures and functions. The coalescing filter element mainly realizes oil-water separation operation by using coalescing principle. When the liquid containing dispersed phase passes through the filter element, the dispersed phase particles will collide and coalesce into larger particles under the action of the internal material of the filter element. These large particles are separated from the continuous phase due to gravity, so as to achieve the purpose of purifying liquid, removing impurities and improving medium quality. The coalescing filter element has high filtration efficiency, strong pollution removal capacity and long service life, and is of great significance to ensure stable operation of production process and equipment safety.

[0003] According to the search, the patent with the patent number CN216223194U discloses a coalescing filter element special for polycarbonate solution. The coalescing filter element comprises a coalescing cylinder body, an upper end cover and a lower end cover. The upper end cover is arranged on the upper end of the coalescing cylinder body, and the lower end cover is arranged on the lower end of the coalescing cylinder body. A plurality of jet flow holes are uniformly arranged on the upper end cover and are in communication with the coalescing cylinder body. The coalescing cylinder body is composed of a first dispersion flow skeleton cylinder, a second dispersion filter layer, a first fixed layer, a first coalescing layer, a second coalescing layer, a second fixed layer, a third coalescing layer, a third fixed layer and an outer separation layer from inside to outside. The coalescing filter element has the advantages of simple structure, novel and unique design, good use effect, corrosion resistance, wide application environment range, good strength, high efficiency, low production cost, wide application in chemical environment with two-phase separation performance requirement of acid, alkali and salt solution, and significant economic and social benefits. However, the above structure is not convenient to disassemble during maintenance of the filter element, and cannot meet the requirements of separating water phase from polycarbonate solution and compatibility of the coalescer with salt and alkali solution medium in PC project production. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a coalescing filter element special for polycarbonate solution, which aims to improve the problem that the filter element is not convenient to disassemble during maintenance in the prior art, and cannot meet the requirements of separating water phase from polycarbonate solution and compatibility of the coalescer with salt and alkali solution medium in PC project production.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of special coalescing filter core of polycarbonate solution, including exoskeleton, the one end of the exoskeleton is provided with upper end cap, the inner wall of the upper end cap is equipped with mounting groove, the inner wall of the mounting groove is slidably connected with multiple sliding rings, multiple support columns are fixedly connected between adjacent two of the sliding ring, rotatable column one is rotatably connected between adjacent two of the sliding ring, the outer wall of the rotatable column one is fixedly connected with pressure block, the one end of the pressure block is fixedly connected with rotatable column two, the both ends of the rotatable column two are rotatably connected with the inner wall of mounting groove, the outer wall of the sliding ring is fixedly connected with rack, the outer wall of the rack is engagedly connected with gear, the inner wall of the exoskeleton is provided with filter mechanism, and the filter mechanism is used to separate water phase.

[0006] Through the above technical scheme: exoskeleton can effectively resist the impact force and pressure generated by polycarbonate solution in flow process, provide stable external support for the whole filter core, the upper end cap is connected with the exoskeleton, ensure the sealing, the inner wall of the upper end cap is provided with annular mounting groove, and the mounting groove provides accurate positioning basis for the installation and operation of subsequent components, the inner wall of the mounting groove is evenly distributed with multiple sliding rings, the sliding ring can smoothly and stably slide in the mounting groove, multiple support columns are fixedly connected between two adjacent sliding rings, and the support column enhances the structural stability between the sliding rings, rotatable column one is arranged between two sliding rings, rotatable column one can flexibly rotate under the support of the sliding ring, the outer wall of rotatable column one is fixedly connected with pressure block, and the pressure block generates uniform and stable pressure to the exoskeleton, one end of the pressure block extends rotatable column two, and the both ends of the rotatable column two are rotatably connected with the inner wall of the mounting groove, so that the pressure block can always remain stable during rotation, the outer wall of the sliding ring is fixedly connected with rack, and the rack and gear are efficiently and stably engaged, and the gear is driven by the engagement of the rack, so that the sliding ring can accurately slide in the mounting groove, and then the position and pressure of the pressure block are accurately adjusted.

[0007] As a further description of the above technical scheme:

[0008] The filter mechanism includes a flow guide layer, the inner wall of the flow guide layer is provided with a coalescing layer one, the inner wall of the coalescing layer one is provided with a coalescing layer two, the inner wall of the coalescing layer two is provided with a support layer, the inner wall of the support layer is provided with an inner skeleton, and the inner wall of the inner skeleton is provided with a liquid discharge layer.

[0009] Through the technical scheme, the flow guide layer can guide the solution to enter the inside of the filter core uniformly at a specific flow rate and flow direction, avoid the solution from appearing turbulent flow and local flow rate being too fast, and thus create a stable fluid environment for subsequent water phase separation. The inside of the flow guide layer is the coalescence layer 1. When the polycarbonate solution flows through the coalescence layer 1, the tiny water droplets in the solution will be quickly attached to the surface and pores of the coalescence layer 1 under the action of surface tension and hydrophilicity. With more water droplets continuously gathering, the tiny water droplets begin to contact and fuse with each other, and gradually form larger water droplets, laying a foundation for further separation of the water phase. The coalescence layer 2 is located inside the coalescence layer 1. The main role of the coalescence layer 2 is to perform secondary coalescence and fine separation on the larger water droplets preliminarily formed by the coalescence layer 1, further aggregate the water droplets that have not completely fused in the coalescence layer 1 into larger water droplets, and more thoroughly separate the water droplets from the polycarbonate solution, improving the efficiency and purity of the water phase separation. The support layer is located inside the coalescence layer 2 and has good pressure resistance and deformation resistance, ensuring that the filter layer will not be deformed and damaged. The inner skeleton is located inside the support layer and is made of lightweight and high-strength metal and composite materials, ensuring the strength of the inner skeleton. The drainage layer is the innermost layer of the filter mechanism. The water phase separated by the coalescence layer 1 and the coalescence layer 2 can quickly pass through the drainage layer and be discharged from the filter core along the water drainage channel of the filter core under the action of gravity and fluid pressure. The polycarbonate solution continues to flow inside the filter core, is further filtered and purified, and then flows out of the outlet of the filter core, thereby realizing high-efficiency separation of the polycarbonate solution and the water phase.

[0010] As a further description of the above technical scheme:

[0011] The bottom of the gear is provided with a hexagonal groove, and the outer wall of the outer skeleton is provided with a punch.

[0012] Through the above technical scheme: the hexagonal groove in the bottom of the gear can ensure that the tool and the gear transmit stable and efficient torque, the hexagonal groove can drive the gear to rotate, and thus drive the rack and the sliding ring to accurately displace, realizing flexible adjustment of the pressure of the pressing block. The punch arranged in an orderly manner on the outer wall of the outer skeleton ensures that the polycarbonate solution can flow smoothly into the inside of the filter core and also plays a role in preliminary filtration to a certain extent, intercepting impurity particles with a large particle size in the solution.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the outer skeleton is provided with a weld.

[0015] Through the above technical scheme: the weld on the outer wall of the outer skeleton is a spiral weld, which effectively guarantees the overall sealing performance and structural strength of the outer skeleton, preventing solution leakage and deformation of the outer skeleton.

[0016] As a further description of the above technical scheme:

[0017] The bottom of the exoskeleton is provided with a lower end cover.

[0018] Through the above technical scheme: the bottom of the exoskeleton is equipped with a lower end cover, the lower end cover is fixed with the exoskeleton, and sealing treatment is assisted by sealing glue, so that the sealing property of the connection is ensured.

[0019] As a further description of the above technical scheme:

[0020] The top of the upper end cover is provided with a crossbar.

[0021] Through the above technical scheme: the top of the exoskeleton is provided with a crossbar, the crossbar is fixedly connected with the top of the upper end cover at both ends, and the impact resistance and pressure resistance of the filter core as a whole are enhanced.

[0022] As a further description of the above technical scheme:

[0023] The outer wall of the upper end cover is provided with a rubber ring.

[0024] Through the above technical scheme: the outer wall of the upper end cover is surrounded by a rubber ring, and the rubber ring effectively prevents the leakage of the polycarbonate solution from the connection between the upper end cover and the exoskeleton.

[0025] As a further description of the above technical scheme:

[0026] The bottom of the upper end cover is provided with an operation hole.

[0027] Through the above technical scheme: the bottom of the upper end cover is provided with an operation hole, the operation hole is positioned in correspondence with the hexagonal groove at the bottom of the gear, a tool can be inserted into the operation hole to drive the gear, and a convenient passage is provided for the maintenance and repair of the internal structure of the filter core.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1、In the utility model, when the upper end cover is installed, the upper end cover is sleeved at one end of the exoskeleton, a tool is inserted into the operation hole to rotate the gear, the gear is engaged with the rack, the rack is fixed on the outer wall of the sliding ring, the sliding ring rotates, the inner wall of the sliding ring is rotatably connected with the pressing block, the other end of the pressing block is rotatably connected with the inner wall of the mounting groove through the rotating column two, when the sliding ring rotates, one end of the pressing block protrudes to extrude the exoskeleton, so that the exoskeleton is fixed firmly, the installation and dismounting of the upper end cover are facilitated, and the maintenance of the filter core is facilitated.

[0030] 2. The utility model discloses a metal wire mesh structure is used to guide flow layer, high density fluorine polymer is used to coalescence layer one, fluorine polymer is used to coalescence layer two, metal wire mesh is used to support layer, and fluorine non -woven fabric is used to drain layer, can satisfy the requirement of separating water phase in polycarbonate solution in PC project production and the compatibility requirement of coalescer and saline solution medium, and coalescence layer one and coalescence layer two adopt pleat structure, make the filtration effect better. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a front side perspective drawing of a special coalescence filter core of polycarbonate solution that the utility model proposes;

[0032] Figure 2 It is a partial structure split drawing of a special coalescence filter core of polycarbonate solution that the utility model proposes;

[0033] Figure 3 It is a partial structure drawing of a special coalescence filter core of polycarbonate solution that the utility model proposes;

[0034] Figure 4 It is a partial structure display drawing of a special coalescence filter core of polycarbonate solution that the utility model proposes;

[0035] Figure 5 It is a partial structure split drawing of a special coalescence filter core of polycarbonate solution that the utility model proposes.

[0036] Legend:

[0037] 1, exoskeleton, 2, filter mechanism, 201, guide flow layer, 202, coalescence layer one, 203, coalescence layer two, 204, support layer, 205, endoskeleton, 206, drain layer, 3, upper end cover, 4, installation groove, 5, sliding ring, 6, support column, 7, rotating column one, 8, compression block, 9, rotating column two, 10, rack, 11, gear, 12, punching, 13, weld, 14, lower end cover, 15, cross bar, 16, rubber ring, 17, hexagonal groove, 18, operation hole. DETAILED DESCRIPTION

[0038] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0039] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 3The utility model provides an embodiment: a kind of coalescence filter core special for polycarbonate solution, including exoskeleton 1, the one end of exoskeleton 1 is provided with upper end cap 3, the inner wall of upper end cap 3 is opened with installation groove 4, the inner wall of installation groove 4 is slidably connected with multiple sliding rings 5, multiple support columns 6 are fixedly connected between adjacent two sliding rings 5, rotatable column one 7 is rotatably connected between adjacent two sliding rings 5, the outer wall of rotatable column one 7 is fixedly connected with pressure block 8, one end of pressure block 8 is fixedly connected with rotatable column two 9, rotatable column two 9 is rotatably connected with the inner wall of installation groove 4, the outer wall of sliding ring 5 is fixedly connected with rack 10, rack 10 is engagedly connected with gear 11, the inner wall of exoskeleton 1 is provided with filter mechanism 2, and filter mechanism 2 is used to separate water phase;

[0040] Specifically, exoskeleton 1 can effectively resist the impact force and pressure generated by polycarbonate solution during flow, providing stable external support for the entire filter core. Upper end cap 3 is connected with exoskeleton 1 to ensure sealing. An annular installation groove 4 is provided on the inner wall of upper end cap 3, providing a precise positioning basis for the installation and operation of subsequent components. Multiple sliding rings 5 are evenly distributed on the inner wall of installation groove 4, allowing smooth and stable sliding within installation groove 4. Multiple support columns 6 are fixedly connected between two adjacent sliding rings 5, enhancing the structural stability between sliding rings 5. Rotatable column one 7 is provided between two sliding rings 5, allowing flexible rotation under the support of sliding ring 5. Pressure block 8 is fixedly connected to the outer wall of rotatable column one 7, exerting uniform and stable pressure on exoskeleton 1. One end of pressure block 8 extends out of rotatable column two 9, which is rotatably connected to the inner wall of installation groove 4, allowing pressure block 8 to remain stable during rotation. Rack 10 is fixedly connected to the outer wall of sliding ring 5, efficiently and stably engaging with gear 11. Gear 11, through engagement with rack 10, can drive sliding ring 5 to slide accurately within installation groove 4, thereby precisely adjusting the position and pressure of pressure block 8.

[0041] Please refer to the attached Figure 4 - attached Figure 5 Filter mechanism 2 includes a flow guide layer 201, a coalescence layer one 202 is provided on the inner wall of flow guide layer 201, a coalescence layer two 203 is provided on the inner wall of coalescence layer one 202, a support layer 204 is provided on the inner wall of coalescence layer two 203, an inner skeleton 205 is provided on the inner wall of support layer 204, and a liquid discharge layer 206 is provided on the inner wall of inner skeleton 205.

[0042] Specifically, the flow guide layer 201 can guide the solution to enter the filter core uniformly at a specific flow rate and flow direction, avoid the occurrence of turbulent flow and local high flow rate, and thus create a stable fluid environment for subsequent water phase separation. The inside of the flow guide layer 201 is the coalescing layer one 202. When the polycarbonate solution flows through the coalescing layer one 202, the tiny water droplets in the solution will quickly adhere to the surface and pores of the coalescing layer one 202 under the action of surface tension and hydrophilicity. With the continuous aggregation of more water droplets, these tiny water droplets begin to contact and fuse with each other, gradually forming larger water droplets, laying a foundation for further separation of the water phase. The coalescing layer two 203 is located inside the coalescing layer one 202. The main function of the coalescing layer two 203 is to perform secondary coalescence and fine separation on the larger water droplets preliminarily formed by the coalescing layer one 202, further aggregate the water droplets that have not completely fused in the coalescing layer one 202 into larger water droplets, and more thoroughly separate the water droplets from the polycarbonate solution, thereby improving the efficiency and purity of water phase separation. The support layer 204 is arranged inside the coalescing layer two 203 and has good compression resistance and deformation resistance, ensuring that the filter layer will not deform or be damaged. The inner skeleton 205 is located inside the support layer 204 and is made of lightweight and high-strength metal and composite materials, ensuring the strength of the inner skeleton 205. The drainage layer 206 is the innermost layer of the filter mechanism 2. The water phase separated by the coalescing layer one 202 and the coalescing layer two 203 can quickly pass through the drainage layer 206 under the action of gravity and fluid pressure and be discharged from the filter core along the water drainage channel of the filter core, while the polycarbonate solution continues to flow in the filter core, is further filtered and purified, and then flows out of the filter core from the outlet, thereby realizing efficient separation of the polycarbonate solution and the water phase.

[0043] Please refer to the attached Figure 3 - attached Figure 5 The bottom of the gear 11 is provided with a hexagonal groove 17, the outer wall of the outer skeleton 1 is provided with a punching 12, the outer wall of the outer skeleton 1 is provided with a weld 13, the bottom of the outer skeleton 1 is provided with a lower end cover 14, the top of the upper end cover 3 is provided with a cross bar 15, the outer wall of the upper end cover 3 is provided with a rubber ring 16, and the bottom of the upper end cover 3 is provided with an operation hole 18.

[0044] Specifically, the gear 11 bottom is provided with a hexagonal groove 17, which can ensure stable and efficient torque transmission between the tool and the gear 11. The gear 11 can be driven to rotate through the hexagonal groove 17, thereby driving the rack 10 and the sliding ring 5 to move accurately, realizing flexible adjustment of the pressure of the pressing block 8. The outer wall of the outer frame 1 is provided with orderly arranged punched holes 12, which ensure that the polycarbonate solution can flow smoothly into the filter element, and also can play a role in preliminary filtration to a certain extent, intercepting impurity particles with large particle size in the solution. The weld 13 on the outer wall of the outer frame 1 is a spiral weld, which effectively ensures the overall sealing and structural strength of the outer frame 1, prevents solution leakage and deformation of the outer frame 1. The bottom of the outer frame 1 is provided with a lower end cover 14, which is fixed with the outer frame 1 and is sealed with sealing glue to ensure the sealing of the connection. The top of the outer frame 1 is provided with a cross bar 15, the two ends of which are fixedly connected with the top of the upper end cover 3, thereby enhancing the impact resistance and pressure resistance of the filter element as a whole. The outer wall of the upper end cover 3 is provided with a rubber ring 16, which effectively prevents the polycarbonate solution from leaking from the connection between the upper end cover 3 and the outer frame 1. The bottom of the upper end cover 3 is provided with an operating hole 18, the position of which corresponds to the hexagonal groove 17 at the bottom of the gear 11, so that the tool can be used to drive and operate the gear 11 through the operating hole 18, and a convenient access is provided for the maintenance and repair of the internal structure of the filter element.

[0045] Working principle: when installing the upper end cover 3, the upper end cover 3 is sleeved on one end of the outer frame 1, a tool is inserted into the operating hole 18 to rotate the gear 11, the gear 11 is engaged with the rack 10, the rack 10 is fixed on the outer wall of the sliding ring 5, that is, the sliding ring 5 rotates, the sliding ring 5 is rotatably connected with the pressing block 8 on the inner wall, and the other end of the pressing block 8 is rotatably connected with the inner wall of the installation groove 4. When the sliding ring 5 rotates, one end of the pressing block 8 protrudes to extrude the outer frame 1, so that the outer frame 1 is fixed firmly, facilitating the installation and removal of the upper end cover 3, and the maintenance of the filter element.

[0046] The flow guide layer 201 adopts a metal wire mesh structure, the coalescence layer one 202 adopts a high-density fluoropolymer, the coalescence layer two 203 adopts a fluoropolymer, the support layer 204 adopts a metal wire mesh, and the drainage layer 206 adopts a fluorine non-woven fabric, which can meet the requirements of separating water phase from polycarbonate solution and the compatibility requirements of coalescer and saline-alkali solution medium in PC project production. The coalescence layer one 202 and the coalescence layer two 203 adopt a pleated structure, so that the filtering effect is better.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A coalescing filter element for polycarbonate solutions, comprising an outer skeleton (1), characterized in that: One end of the outer frame (1) is provided with an upper end cover (3). The inner wall of the upper end cover (3) is provided with an installation groove (4). Multiple sliding rings (5) are slidably connected to the inner wall of the installation groove (4). Multiple support columns (6) are fixedly connected between adjacent sliding rings (5). Rotating column one (7) is rotatably connected between adjacent sliding rings (5). A pressing block (8) is fixedly connected to the outer wall of the rotating column one (7). A rotating column two (9) is fixedly connected to one end of the pressing block (8). Both ends of the rotating column two (9) are rotatably connected to the inner wall of the installation groove (4). A rack (10) is fixedly connected to the outer wall of the sliding ring (5). A gear (11) is meshed with the outer wall of the rack (10). A filtration mechanism (2) is provided on the inner wall of the outer frame (1). The filtration mechanism (2) is used to separate the water phase.

2. The polycarbonate solution-specific coalescing filter element according to claim 1, characterized in that: The filtration mechanism (2) includes a flow guide layer (201), the inner wall of the flow guide layer (201) is provided with a first coalescing layer (202), the inner wall of the first coalescing layer (202) is provided with a second coalescing layer (203), the inner wall of the second coalescing layer (203) is provided with a support layer (204), the inner wall of the support layer (204) is provided with an inner skeleton (205), and the inner wall of the inner skeleton (205) is provided with a drainage layer (206).

3. The coalescing filter element for polycarbonate solutions according to claim 1, characterized in that: The bottom of the gear (11) is provided with a hexagonal groove (17), and the outer wall of the outer frame (1) is provided with a punch (12).

4. The coalescing filter element for polycarbonate solutions according to claim 1, characterized in that: The outer wall of the outer frame (1) is provided with welds (13).

5. The polycarbonate solution-specific coalescing filter element according to claim 1, characterized in that: The bottom of the outer frame (1) is provided with a lower end cap (14).

6. The coalescing filter element for polycarbonate solutions according to claim 1, characterized in that: A crossbar (15) is provided on the top of the upper end cover (3).

7. The coalescing filter element for polycarbonate solutions according to claim 1, characterized in that: A rubber ring (16) is provided on the outer wall of the upper end cover (3).

8. The coalescing filter element for polycarbonate solutions according to claim 1, characterized in that: The bottom of the upper end cover (3) is provided with an operation hole (18).

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