JP2008110294A - Separator cartridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate disposal of a separator cartridge. <P>SOLUTION: The separator cartridge 10 comprises a filter medium part 12 consisting of a cylindrically formed metallic porous punching metal 14 and wire mesh 15 cylindrically wound around the outer periphery of the punching metal 14, and is composed to remove free water content mixing into fluid by the wire mesh 15 by passing hydrocarbon-based fluid through the outer peripheral side face of the filter medium part 12. The wire mesh 15 is composed of the same material as the punching metal 14, and gaskets 16, 16 are attached to both ends of the filter medium part 12 for preventing leakage of the fluid from openings 12a, 12b formed at both ends of the filter medium part 12. The filter medium part 12 is formed by applying water-repellant material composed of fluororesin to the wire mesh 15. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a separator cartridge including a cylindrical core member, a filter medium portion having a filter medium layer wound around the core member, and a gasket.

Conventionally, in oil refineries and the like, it has become common to separate and remove moisture and solids in oil with a filter separator (see, for example, Patent Document 1). As a separator cartridge provided in the filter separator, a filter paper made of a water-repellent effect with silicone or the like is formed into a pleated shape, or a filter medium made of synthetic fibers is formed on a cylindrical core member having a large number of through holes on the side surface. A structure is known in which end plates are bonded to both ends of a core member that is wound and further wrapped with a filter medium. In the process of passing through the filter medium from the outer space of the separator cartridge, water droplets in the oil are repelled, and moisture is separated and removed from the oil that has passed through the filter medium to 5 to 15 ppm. It should be noted that the separator cartridge is provided so as to be detachable and replaceable when the separator cartridge is used for a predetermined period of time, because the performance deteriorates due to the clogging of the filter medium and the water repellent function. After use, the separator cartridge is sorted by material and discarded.
JP-A-62-176509

  A conventional core member is formed by using punching metal, while a filter paper that is folded into a pleat shape and formed into a cylindrical shape having a cross section of chrysanthemum is used as the filter medium. When discarding such a filter medium, it is necessary to separate the filter medium soaked with oil, the metal core member, and the end plate bonded to both ends with an epoxy resin, which requires a lot of labor for the separation process.

  In view of such a problem, an object of the present invention is to provide a separator cartridge that can facilitate disposal work.

  In order to achieve the above object, a separator cartridge according to the present invention is wound in a cylindrical shape around a metal porous core member (for example, a punching metal 14 in the embodiment) formed into a cylindrical shape and the outer periphery of the core member. The filter medium layer (for example, the metal mesh 15 in the embodiment) is configured to have a filter medium part, and a hydrocarbon-based fluid is passed through the outer peripheral side surface of the filter medium part to remove water droplets contained in the fluid by the filter medium layer. It is a separator cartridge, Comprising: The filter medium part is comprised with the metal mesh of the same material as a core member, and the gasket which prevents the outflow of the fluid from the opening formed in the both ends of the filter medium part is attached to the both ends of the filter medium part.

  Further, in the separator cartridge having the above configuration, the filter medium layer is formed by applying a water repellent material such as a fluororesin having a predetermined contact angle (for example, 150 °) or more to prevent adhesion of water droplets to the wire mesh. It is preferable.

  Furthermore, in the separator cartridge having the above-described configuration, a predetermined size (for example, the coalescer cartridge 20 in the embodiment) passes through moisture aggregation means (for example, the coalescer cartridge 20 in the embodiment) that captures and removes solids contained in the fluid and aggregates the moisture contained in the fluid. It is preferable that the fluid that has flowed in the state in which water droplets coarsened to about 0.5 mm to 10 mm) are mixed is passed through the filter medium layer to remove water repellent on the surface of the filter medium layer.

  In the separator cartridge according to the present invention configured as described above, the metal core member and the filter medium layer attached to the core member are molded from the same metal material. For this reason, it can process without separating a core member and a filter medium layer, and can simplify a processing operation. Moreover, the cost which a disposal process requires can be reduced by reducing and disposing of these. Furthermore, since the filter medium layer and the core member can be easily separated after use, the separated core member can be reused only by simple cleaning, and the resources can be made effective. In addition, gaskets for closing the openings formed in the filter medium part are provided at both ends of the cylindrical filter medium part, and the fluid flowing into the filter medium part is firmly held so as not to leak to the outside.

  In addition, as a filter medium layer formed of the same material as the core member, a wire mesh set to a predetermined number of meshes is used, and a water repellent material made of fluororesin or the like is further applied to the wire mesh to set a contact angle to a predetermined angle (for example, By setting it to 150 ° or more, it can be sufficiently put into practical use as a filter medium layer of a separator cartridge.

  In addition, the separator cartridge according to the present invention is used together with a water aggregation means (so-called coalescer cartridge) that captures and removes solids contained in the fluid and aggregates the water contained in the fluid. It is possible to cause water droplets that have been aggregated by passing the fluid flowing through the filter medium layer to be water repellent, but as described above, because the contact angle is a predetermined angle or more (150 ° or more) and in the super water repellent region, It becomes possible to increase the filtration speed for processing, and the equipment can be made compact.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the direction of the arrow U shown in FIG. 1 is demonstrated as a fluid flow direction. The longitudinal axis direction of the separator cartridge 10 whose outer shape is formed in a substantially cylindrical shape is the vertical direction. A filter separator 1 having an overall configuration shown in FIG. 1 includes a casing 2, a coalescer cartridge 20 (aggregated layer) accommodated in the casing 2, and a separator cartridge 10. The filter separator 1 is provided, for example, in a product shipment line of an oil refinery factory or a petrochemical factory.

  The casing 2 is configured, for example, by assembling upper and lower halves, and is formed into a cylindrical shape extending vertically in the assembled state, and a closed space 2C is formed inside. The casing 2 is formed with an oil inflow hole 2a and an oil outflow hole 2b that allow the internal space 2C to communicate with the outside of the casing 2.

  The casing 2 is provided with a partition wall 2c that divides the internal space 2C vertically and forms an upper internal space 2D and a lower internal space 2E. The lower internal space 2E is further divided into a dirty oil chamber 2F on the oil inflow hole 2a side and a clean oil chamber 2G on the oil outflow hole 2b side. In the partition wall 2c, openings 2d, 2e, and 2f penetrating vertically are respectively formed at three locations of the central portion and an appropriate position outside the central portion. The opening 2e communicates with the inside of the coalescer cartridge 20 through a vertical tube 2g that extends vertically and attaches the coalescer cartridge 20, and the opening 2f extends through the vertical tube 2h that extends vertically and attaches the separator cartridge 10. 10 communicates with the interior. Further, the upper internal space 2D and the outside of the casing 2 are shielded from the dirty oil chamber 2F and the clean oil chamber 2G through the opening 2d provided in the center of the partition wall 2c and the condensed water discharge pipe 2i extending vertically. It is communicated to the state that was made.

  The dirty oil chamber 2F communicates with a vertically extending dirty oil discharge pipe 2j. When cleaning the dirty oil chamber 2F, the oil in the dirty oil chamber 2F is removed from the casing 2 through the dirty oil discharge pipe 2j. Can be discharged. The clean oil chamber 2G communicates with a vertically extending clean oil discharge pipe 2k. When cleaning the clean oil chamber 2F or the like, the oil in the clean oil chamber 2F is transferred to the casing 2 via the clean oil discharge pipe 2k. It is possible to discharge to the outside.

  The coalescer cartridge 20 has a function of capturing solid impurities contained in oil and aggregating and separating minute water droplets. On the other hand, the separator cartridge 10 has a function of repelling and removing water droplets that cannot be separated and removed by the coalescer cartridge 20. That is, as shown in FIG. 1, minute water droplets are agglomerated and separated by the coalescer cartridge 20 by flowing into the coalescer cartridge 20 from the oil inflow hole 2a through the dirty oil chamber 2F defined in the casing 2. The oil is water-repellently removed by passing through the separator cartridge 10 and the oil flows out from the oil outflow hole 2b through the clean oil chamber 2G defined in the casing 2.

  Here, the configuration of the separator cartridge 10 according to the present invention will be described. The separator cartridge 10 includes a cylindrical flow control tube 11 and a cylindrical filter medium portion 12 that is spaced from the outer periphery of the flow control tube 11 at a predetermined interval and is disposed so as to accommodate it. The flow control tube 11 is installed to make the flow velocity of the fluid flowing into the separator cartridge 10 uniform, and is formed by cylindrically forming a metal material made of austenitic stainless steel (SUS304). A large number of circular holes 11a, 11a,... The upper end of the flow control tube 11 is covered with a disk-shaped lid member 13 having substantially the same diameter as the flow control tube 11. The lid member 13 is formed into a predetermined shape using a resin material. The flow control tube 11 is installed on a stepped flange-shaped adapter 18 installed at the upper end of the vertical tube 2f.

  The filter medium portion 12 is made of an austenitic stainless steel punching metal 14 having a diameter of about 145 mm and a length of about 1000 mm (not necessarily limited to such dimensions) made of the same austenitic stainless steel as the flow control tube 11. A cylindrical wire mesh 15 made of stainless steel and appropriately set between 50 and 400 mesh is wound along the circumferential direction of the cylinder. And the opening 12a, 12b is formed in the cylindrical filter medium part 12 at the upper and lower ends. The mesh is a unit representing the number of wires in the horizontal direction per 1 inch in the vertical width, and the larger the value is, the finer the mesh of the wire mesh 15 of the filter medium part 12 is.

  Further, a super water-repellent material is applied to the surface of the wire mesh 15 of the filter medium portion 12, and for example, a polyfluorinated ethylene resin is used as the super water-repellent material. By applying such a super water-repellent material, when water flows on the wire mesh 15, the contact angle of the wire mesh 15 with respect to water becomes about 150 °. Here, “contact angle” means when a tangent line is drawn from the surface where the solid, liquid, and air come into contact with the surface of the liquid, as described in Japanese Industrial Standard JIS R3257 “Wettability Test Method for Glass Substrate”. The angle formed between this tangent and the solid surface of the portion wetted by the liquid. The greater the contact angle, the better the water repellency, and conversely, the smaller the contact angle, the better the wettability. In the separator cartridge 10 according to the present invention, the contact angle may be 150 ° or more.

  The upper and lower gaskets 16, 16 made of a resin material having a substantially U-shaped cross section are attached to the upper and lower ends of the filter medium portion 12 configured as described above along the end face of the filter medium section 12. Yes. Examples of the material of the gaskets 16 include nitrile rubber (NBR) and Viton (registered trademark) rubber. In addition, the filter medium part 12 is mounted on the adapter 18 integrated with the vertical pipe 2f via the lower gasket 16 attached so as to open upward. Further, blinds 17 and 17 are provided at both upper and lower ends of the filter medium part 12 to shield the fluid from entering the filter medium part 12. Each of the blinds 17 and 17 is formed of a ring-shaped member having substantially the same diameter as the filter medium part 12 and provided on the inner peripheral side of the filter medium part 12 (on the inner peripheral side of the punching metal 14). 12 is attached to the gasket 16 and fixed.

  A through hole 18a penetrating in the vertical direction is formed in the substantially central portion of the stepped flange-shaped adapter 18, and the inside of the flow control tube 11 and the vertical pipe 2f communicate with each other through the through hole 18a. The fluid inside the flow control tube 11 cleaned by the section 12 is sent to the vertical pipe 2f. A center rod attachment portion 18c to which the lower end portion of the center rod 4 can be attached is provided over the diameter portion of the through hole 18a so as to block a part of the through hole 18a formed in the adapter 18. On the longitudinal axis of the flow control tube 11 in the attachment portion 18c, a rod insertion hole 18b penetrating vertically through the center rod attachment portion 18c is formed. The rod insertion hole 18b is threaded, and the center rod 4 that is also threaded at the lower end is inserted into the rod insertion hole 18b to fasten and fix the center rod 4 to the adapter 18. Is possible.

  The flow control tube 11 is placed on the adapter 18 so that the center rod 4 is passed through a rod insertion hole 13a formed in a substantially central portion of the lid member 13 with the lid member 13 on top. Then, by tightening the flow control tube 11 from the upper end side of the flow control tube 11 with the nuts 6 and 6, the adapter 18 in the state where the longitudinal axis direction of the flow control tube 11 extends substantially perpendicularly to the adapter 18 Fixed.

  Further, the filter medium portion 12 is installed inside the casing 2 in a nested manner so as to cover the flow control tube 11 in a state where the flow control tube 11 is set in the adapter 18. The filter medium part 12 is attached to the upper end part of the filter medium part 12, and the center rod 4 is passed through a rod insertion hole 19a formed vertically through a substantially central part of a lid member 19 made of a resin material. The center rod 4 provided by passing the inside of the control tube 11 up and down is fastened to the adapter 18 by tightening the nut 5, and the axial positions of the longitudinal axes of the filter medium portion 12 and the flow control tube 11 are both center. It corresponds to the rod 4. At this time, the lid member 19 presses the upper gasket 16 that is attached in a direction to open downward by tightening the nut 5, so that the fluid inside the filter medium part 12 does not leak to the outside through the opening 12 a on the upper end side. It is like that. Moreover, the lower end part of the filter medium part 12 presses the adapter 18 through the lower gasket 16, so that the fluid inside the filter medium part 12 does not leak to the outside through the opening 12b on the lower end side.

  Although the structure of the separator cartridge 10 constituting the filter separator 1 has been described above, the separator cartridge 10 flows from the coalescer cartridge 20 that captures and removes solids contained in the fluid and aggregates moisture contained in the fluid. By allowing the fluid to pass through the wire mesh 15 of the filter medium part 12 of the separator cartridge 10, the water condensed in the coalescer cartridge 20 is water-repellently removed. Hereinafter, a state in which moisture in the fluid (petroleum) flowing in from the coalescer cartridge 20 is separated and removed in the separator cartridge 10 will be described.

  Petroleum in which moisture has condensed by passing through the coalescer cartridge 20 reaches the outer peripheral surface of the filter medium part 12 of the separator cartridge 10 that functions as an oil-water separator, and passes through the wire mesh 15 of the filter medium part 12. Here, the mesh of the metal mesh 15 is set to 50 to 400 mesh, and the water repellent material is applied to the surface so that the contact angle is 150 °. It adheres and agglomerates on the surface of the wire mesh 15 and is separated from petroleum. Furthermore, solid impurities such as metal scraps contained in the petroleum are captured by the filter medium part 12.

  The oil from which moisture and solid impurities have been removed by passing through the filter medium part 12 passes through a plurality of circular holes 11a, 11a,... Formed in the circumferential side surface of the flow control tube 11, and the inside of the flow control tube 11 Reach into space. The oil that has reached the internal space of the flow control tube 11 flows out of the separator cartridge 10 through the vertical pipe 2f, and flows out of the casing 2 through the oil outflow hole 2b from the clean oil chamber 2G.

  Moreover, the water | moisture content adhering to the metal mesh 15 aggregated a droplet mutually, and it falls below with dead weight. Such moisture falls to the upper surface of the partition wall 2c and stays in the lower part of the upper internal space 2D (moisture W in FIG. 1), but flows into the condensed water discharge pipe 2i from the opening 2d formed in the partition wall 2c. Then, it is guided to the condensed water discharge pipe 2i and discharged from the water outlet to the outside of the filter separator 1.

  When the filter separator 1 is operated for a predetermined period, the separation and removal performance deteriorates due to clogging of the metal mesh 12 with the filtering action of the solid impurities, so that it is necessary to replace and replace the filter medium portion 12 of the separator cartridge 10. There is. In this case, the connecting member that fixes the separator cartridge 10 and the filter cartridge 20 in the casing 2 by connecting the separator cartridge 10 and the filter cartridge 20 by operating the nuts 5 and 5 in the direction of loosening the nuts 5 and 5 for attaching and detaching the filter member 12. The filter medium part 12 can be detached from the flow control tube 11, and the filter medium part 12 can be removed from the adapter 18 on which the filter medium part 12 is mounted. After removing the old filter medium part 12, the new filter medium part 12 is installed inside the casing 2 so as to cover the flow control tube 11.

  Oil is attached to the filter medium part 12 taken out by exchange. However, if the punched metal 14 in the filter medium part 12 is washed to remove the attached oil, the oil can be reused as it is and the resources can be effectively used. Is achieved. Further, since the punching metal 14 and the metal mesh 15 are formed from the same material, the removed filter medium portion 12 is pressed with a predetermined press machine in an assembled state without separating and collecting the punching metal 14 and the metal mesh 15. By doing so, it is possible to reduce and dispose of the filter medium part 12 in a state where the wire mesh 15 is wound, and to reduce the cost required for the disposal process.

  Further, as a filter medium part for removing water, a metal mesh having a mesh of 50 to 400 mesh and formed so that the contact angle of water droplets becomes 150 ° or more by water repellent treatment by surface Teflon (registered trademark) processing. Is used. By using the filter medium part formed in this way, it can be sufficiently put to practical use as the filter medium of the filter separator 1.

  So far, the embodiment of the separator cartridge according to the present invention has been described, but it is not necessarily limited to the above-described configuration. Although the example used as a separator cartridge of the filter separator 1 for removing moisture from petroleum is shown in the above embodiment, the separator cartridge according to the present invention is used in a liquid-liquid separation device for liquids other than petroleum. Also good. Further, the use as the filter separator 1 for removing moisture from oil is not limited to being provided in the product shipping line of an oil refinery factory, but can be implemented in the same manner for other uses as well. Obtainable.

It is a figure which shows the filter separator which concerns on this invention. It is a longitudinal cross-sectional view of the separator cartridge which comprises the said filter separator. It is a disassembled perspective view which shows the lower end part periphery of the said separator cartridge.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter separator 2 Casing 4 Center rod 10 Separator cartridge 11 Flow control tube (moisture aggregation means)
11a Circular hole 12 Filter media part 12a, 12b Opening 13 Lid member 14 Punching metal (core member)
15 Wire mesh (filter material layer)
16 Upper and lower gaskets 17 Blind 18 Adapter 18a Through hole 18b Rod insertion hole 18c Center rod mounting part 19 Lid member 19a Rod insertion hole

Claims (4)

A metal porous core member formed into a cylindrical shape and a filter medium part formed of a filter medium layer wound in a cylindrical shape around the outer periphery of the core member, and carbonized from the outer peripheral side surface of the filter medium part. A separator cartridge that allows hydrogen-based fluid to pass therethrough and removes free water mixed into the fluid by the filter medium layer,
The filter medium layer is composed of a wire mesh made of the same material as the core member,
A separator cartridge, wherein gaskets are attached to both ends of the filter medium part to prevent fluid from flowing out from openings formed at both ends of the filter medium part.   The separator cartridge according to claim 1, wherein the filter medium layer is formed by applying a water repellent material to the wire mesh.   The separator cartridge according to claim 2, wherein a fluororesin is used as the water repellent material.   The fluid that has flowed through the water aggregation means that captures and removes solids contained in the fluid and agglomerates the moisture contained in the fluid and is mixed with water droplets coarsened to a predetermined size passes through the filter medium layer. The separator cartridge according to any one of claims 1 to 3, wherein the moisture aggregated by the water repellent removal on the surface of the filter medium layer.

Images