Gas-liquid separation device with cylindrical filter

Abstract

To provide a gas-liquid separation device which avoids accumulation of a liquid in a coupling portion of a cylindrical filter and prevents a fluid which does not pass through the cylindrical filter from penetrating into the cylindrical filter to perform reliable gas-liquid separation.SOLUTION: A cyclone body 2 is provided within a cyclone separator 20, and the cyclone body 2 swirls steam flowing thereinto to separate drain mixed with the steam through centrifugal separation. A filter 40 is disposed penetrating through an inner pipe 3 of the cyclone body 2. In a communication pipe 50 provided at an upper end of the filter 40, a gasket 55 is attached to a step part 50a and an O ring 57 is attached to an insertion vertical surface 50b. A plug 49 fixed to a lower end of the filter 40 is biased upward by a plate spring piece 46a and the filter 40 is sealed by the gasket 55 and the O ring 57.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The gas-liquid separation device with a cylindrical filter according to the present application relates to a technique for mounting a cylindrical filter in a gas-liquid separation device that takes in a multiphase flow and separates it into a gas phase and a liquid phase.

Background Art

[0002] As a gas-liquid separation device that takes in a multiphase flow and separates it into a gas phase and a liquid phase, there is a gas-liquid separator disclosed in Patent Document 1 described later. An inlet and an outlet are formed in the upper part of the main body of this gas-liquid separator. Swirl vanes are arranged in the annular space formed by the main body and the internal exhaust pipe.

[0003] The upper side of the swirl vanes communicates with the inlet of the main body, and the inner side of the exhaust pipe communicates with the outlet of the main body. In addition, a swirl chamber and a liquid storage chamber are formed below the annular space, and the lower part of this liquid storage chamber is communicated with a drain port formed in the main body.

[0004] Inside the exhaust pipe, a cylindrical filter for fluid filtration whose lower end is closed by a plug is arranged at the upper part of the liquid storage chamber. A valve seat is fixed to the upper part of the cylindrical filter by welding, and the cylindrical filter is mounted inside the main body by screwing this valve seat to the inlet / outlet member on the main body side.

[0005] The gas containing liquid and foreign matter that flows in from the inlet of the main body is swirled by the swirl vanes. By centrifugal separation caused by this swirling, liquids with large mass and foreign matter with large particle size are flung outward and separated, flow down along the inner peripheral wall of the main body, and are discharged from the drain port.

[0006] Then, the gas from which liquid and foreign matter have been removed passes through the cylindrical filter and flows out from the outlet of the main body. When the gas passes through the cylindrical filter, fine foreign matter remaining in the gas is captured by the cylindrical filter.

Prior Art Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2012-106154 [Overview of the project] [Problems that the invention aims to solve]

[0008] However, in the gas-liquid separator disclosed in the aforementioned Patent Document 1, liquid such as drain can adhere to and accumulate in the gaps of the screw connection of the cylindrical filter 22. If liquid such as drain adheres and accumulates, bacteria may proliferate, and the gas passing through the gas-liquid separator may become unsanitary.

[0009] Furthermore, if the cylindrical filter 22 is not adequately connected to the inlet / outlet member 2 on the main body 1 side, gases that have not passed through the cylindrical filter 22 may enter the cylindrical filter 22 through gaps in the connection, and gas contaminated with foreign matter may leak out of the gas-liquid separator. If gas contaminated with liquid or foreign matter leaks out of the gas-liquid separator, for example, at the destination, liquid particles may collide with equipment parts at high speed, causing erosion (mechanical wear). In addition, the liquid or foreign matter mixed in the gas may cause product defects in the object at the destination.

[0010] Furthermore, when performing maintenance work to remove foreign matter adhering to the cylindrical filter 22, it is necessary to rotate and detach the cylindrical filter 22, which is connected by screws, so there is room for improvement in maintainability.

[0011] Therefore, the gas-liquid separation apparatus having a cylindrical filter according to the present invention solves these problems by avoiding liquid stagnation at the joint portion of the cylindrical filter, preventing fluids that have not permeated the cylindrical filter from entering the cylindrical filter, thereby ensuring reliable gas-liquid separation, and also allowing the cylindrical filter to be securely attached and improving the efficiency of maintenance work. [Means for solving the problem]

[0012] The gas-liquid separation apparatus having a cylindrical filter according to the present application is: A gas-liquid separation device that takes in a multiphase flow in which a gas phase and a liquid phase are mixed and separates them into a gas phase and a liquid phase, The apparatus body has an inlet into which the multiphase flow flows, a liquid phase outlet into which the separated liquid phase flows out, and a gas phase outlet into which the separated gas phase flows out. A separation means provided in the main body of the apparatus, wherein the multiphase flow is separated into the gas phase and the liquid phase. A cylindrical filter having a cylindrical filter surface, wherein the gas phase separated by the separation means passes through the filter surface, and one end of the cylindrical filter is attached to the mounting surface of the main body of the device. A sealing means interposed between the mounting surface of the main body of the apparatus and one end of the cylindrical filter, which seals and isolates the inside and outside of the cylindrical filter. Pressurizing means for pressurizing the other end of the cylindrical filter and pressing the one end of the cylindrical filter toward the mounting surface of the device body, It is characterized by having the following features. [Effects of the Invention]

[0013] In the gas-liquid separation apparatus having a cylindrical filter according to the present invention, a sealing means is interposed between the mounting surface of the apparatus body and one end of the cylindrical filter, and a pressurizing means pressurizes the other end of the cylindrical filter, pressing one end of the cylindrical filter toward the mounting surface of the apparatus body.

[0014] Accordingly, the cylindrical filter can be reliably attached to the apparatus main body by pressurization from the pressurizing means. Further, since the attachment does not rely on threaded connection, the liquid phase will not adhere to and stay in the gap portion of the threaded connection, and retention of the liquid phase at the connection portion of the cylindrical filter can be avoided.

[0015] Further, the sealing means is interposed between the mounting surface of the apparatus main body and one end portion of the cylindrical filter, so that intrusion of the multiphase flow, liquid phase or gas phase that has not passed through the cylindrical filter into the cylindrical filter is blocked, and reliable gas-liquid separation can be performed. Furthermore, since the cylindrical filter is attached by the pressurizing means pressurizing the other end of the cylindrical filter, the cylindrical filter can be easily attached and detached, and the work efficiency of maintenance operations can be improved. [Brief Description of the Drawings]

[0016] [Figure 1] This is a cross-sectional view showing the overall configuration of a cyclone separator 20 which is the first embodiment of the gas-liquid separation apparatus having a cylindrical filter according to the present application. [Figure 2] This is an enlarged cross-sectional view of the vicinity of the communication pipe 50 of the filter 40 shown in Figure 1. [Figure 3] This is a perspective view of the cyclone body 2 shown in Figure 1. [Figure 4] This is a side view of the filter 40 shown in Figure 1. [Figure 5] This is a plan view of the leaf spring disc 46 shown in Figure 1. [Modes for Carrying Out the Invention]

[0017] [Term Description in Embodiments] The main terms shown in the embodiments respectively correspond to the following elements of the gas-liquid separation apparatus having a cylindrical filter according to the present application.

[0018] Cyclone body 2···Separating means Body pipe 10, upper lid 14 and bottom lid 18···Apparatus main body Inflow port 11···Inflow port portion Outflow port 12···Gas-phase outflow port portion Target vertical surface 14b···Mounting vertical surface Target horizontal surface 17a···Mounting horizontal surface Target horizontal surface 17a and target vertical surface 14b···Mounting surface Discharge port 19···Liquid-phase outflow port portion Cyclone separator 20···Gas-liquid separation device Filter 40···Cylindrical filter Mesh cylinder 41···Filter surface Leaf spring piece 46a···Pressurizing means Plug 49···The other end of the cylindrical filter Communication pipe 50···One end of the cylindrical filter Step portion 50a···Filter horizontal surface Insertion vertical surface 50b···Filter vertical surface Gasket 55 and O-ring 57···Sealing means Gasket 55···Horizontal sealing means O-ring 57···Vertical sealing means Center line L1···Cylinder center line Vapor···Gas phase Drain···Liquid phase Vapor mixed with drain···Multiphase flow

[0019] [First Embodiment] One embodiment of the gas-liquid separation device having the cylindrical filter according to the present application will be described below. In the present embodiment, as the gas-liquid separation device having the cylindrical filter, a cyclone separator installed in a piping system for vapor transfer is illustrated. The cyclone separator is a device that separates the gas phase and the liquid phase by the action of centrifugal separation using the difference in specific gravity between the gas phase and the liquid phase. In the present embodiment, a cyclone separator that separates drain from vapor mixed with drain to obtain dry vapor is presented.

[0020] Industrial plants often have piping systems installed to transfer fluids such as steam and air to various pieces of equipment. When transferring saturated steam, some of it condenses due to heat loss during transport, and condensate is generated inside the piping.

[0021] If these generated condensates are transported along with the steam, it can cause problems such as equipment erosion and product defects in the destination object. Therefore, it is necessary to remove as much condensate as possible from the piping. For this reason, automatic valves such as steam traps are generally installed in piping systems to automatically discharge condensate outside the piping as needed.

[0022] However, some of the condensate is drawn into the steam and becomes droplet-like, and as it travels through the piping, it is difficult to completely remove the condensate with a steam trap. For this reason, a cyclone separator is installed just before the equipment to which the steam is supplied, and dry steam, with most of the condensate removed, is supplied to the equipment.

[0023] (Description of the overall configuration of the cyclone separator 20) Figure 1 shows the overall configuration of the cyclone separator 20 in this embodiment. The body tube 10 of the cyclone separator 20 has a cylindrical shape with an open top and bottom. A top cover 14 is attached to the top of the body tube 10 and secured by a fixing device 13 with a clamp structure. An open plug hole 16 is provided on the top of the top cover 14, and a pressure gauge or the like can be connected to this plug hole 16 as needed.

[0024] Furthermore, the top cover 14 has an inlet 11 and an outlet 12 formed in a direction perpendicular to the centerline L1 of the body pipe 10. The inlet 11 and outlet 12 are arranged coaxially and communicate with the space inside the body 10. The inlet 11 and outlet 12 each open outwards, and steam transfer piping (not shown) is connected to each. The piping connected to the outlet 12 is the piping immediately before the equipment to which the steam is supplied. The flow path from the inlet 11 towards the inside of the top cover 14 is configured as an inlet passage 61.

[0025] A bottom cover 18 is screwed and fixed to the open bottom side of the body pipe 10. An outlet 19 is formed at the bottom of this bottom cover 18. A drain pipe (not shown) is connected to the outlet 19. A cyclone body 2 is provided in the upper part of the body pipe 10. Figure 3 is a perspective view of the cyclone body 2, and the section II in the direction of the arrow in Figure 3 is shown in Figure 1. The cyclone body 2 comprises an inner pipe 3 and an outer pipe 4 that covers the inner pipe 3 and is located on the outside. The inner pipe 3 and the outer pipe 4 each have a cylindrical shape that opens in the vertical direction, and the inner pipe 3 protrudes upward from the outer pipe 4.

[0026] Furthermore, the maximum outer diameter of the outer tube 4 is approximately the same as the inner diameter of the body tube 10 (see Figure 1), so that when the cyclone body 2 is installed, steam does not flow between the outer tube 4 and the inner wall 15 of the body tube 10. In addition, the inner diameter of the outer tube 4 is larger than the outer diameter of the inner tube 3, and five guide vanes 8 are interposed between the outer tube 4 and the inner tube 3 at equal intervals in the circumferential direction. These five guide vanes 8 integrally connect the inner tube 3 and the outer tube 4. Each guide vane 8 is plate-shaped, and the guide vanes 8 that protrude upward from the outer tube 4 each have a roughly triangular shape, with their width gradually increasing from top to bottom.

[0027] Furthermore, an inclined wall 7 is formed on one side of each guide vane 8. The inclined wall 7 forms a gentle slope downward from the central part in the vertical direction of the guide vane 8, and the lower end of the inclined wall 7 is located near the upper end of the outer pipe 4. Along this inclined wall 7, a spiral channel 29 is formed on the outer circumference of the inner pipe 3. This spiral channel 29 communicates with the inflow passage 61.

[0028] As shown in Figure 1, a filter 40 is positioned through the inner tube 3 of the cyclone body 2. Figure 4 is a side view of the filter 40. The filter 40 has a cylindrical shape, and the central axis of the filter 40's cylinder is the same as the center line L1 of the body tube 10. The outer diameter of the filter 40 is smaller than the minimum inner diameter of the inner tube 3, and sufficient space is formed between the outer surface of the filter 40 and the inner surface of the inner tube 3.

[0029] The cylindrical portion of the filter 40 is composed of a mesh cylinder 41. This mesh cylinder 41 is made of a fine mesh material, and in this embodiment, the mesh cylinder 41 is a laminated sintered metal filter formed by stacking and sintering five layers: a filtration control layer, a dispersion layer, two reinforcing layers, and a protective layer. The filtration particle size of the mesh cylinder 41 is preferably between 0.5 micrometers and 10 micrometers.

[0030] The upper and lower ends of the mesh cylinder 41 are open, and a plug 49 is fixed to the lower end by welding. A cylindrical connecting pipe 50 is also fixed to the upper end of the mesh cylinder 41 by welding. A connecting port 51 is formed inside the connecting pipe 50, and this connecting port 51 connects the cylindrical space 42 of the filter 40 to the outlet 12.

[0031] Figure 2 is an enlarged cross-sectional view of the vicinity of the connecting pipe 50. When the filter 40 is installed inside the cyclone separator 20, the connecting pipe 50 is inserted into the circular hole 14s in the top cover 14. The upper end portion of the connecting pipe 50 is formed to be slightly narrower than the lower end portion, thereby forming a stepped portion 50a around the entire circumference of the connecting pipe 50. The stepped portion 50a is located along a horizontal plane perpendicular to the center line L1. A circular recess is formed in the stepped portion 50a, and an annular gasket 55 is fitted into this recess. The thickness of the gasket 55 is set to be slightly thicker than the depth of the recess, so when fitted into the recess, the gasket 55 protrudes slightly upward from the stepped portion 50a (see Figure 4).

[0032] Furthermore, the outer circumferential surface of the tip portion of the connecting pipe 50, which extends vertically (in the direction of the center line L1) in a continuous manner with the stepped portion 50a, is configured as the insertion vertical surface 50b. A recess is formed in this insertion vertical surface 50b around its entire circumference, and an O-ring 57 is fitted into this recess. This O-ring 57 is also made to be slightly larger than the recess, and when fitted into the recess, the O-ring 57 protrudes slightly outward from the insertion vertical surface 50b (see Figure 4).

[0033] A ring-shaped inner wall ring 17 with a through hole in the center is fixed to the lower part of the circular hole 14s inside the top cover 14 into which the tip of the connecting pipe 50 is inserted. The inner diameter of the through hole in the inner wall ring 17 is the same as the inner diameter of the circular hole 14s inside the top cover 14, and the connecting pipe 50 is inserted into the circular hole 14s inside the top cover 14 with the through hole in the inner wall ring 17 passing through it.

[0034] In this embodiment, the inner circumferential surface of the circular hole 14s inside the top cover 14 is the symmetrical vertical surface 14b, and the inner diameter 14L of the symmetrical vertical surface 14b is set to be slightly smaller than the outer diameter of the O-ring 57 when it is fitted into the recess of the connecting pipe 50. Therefore, when the connecting pipe 50 is inserted into the circular hole 14s inside the top cover 14 and the symmetrical vertical surface 14b and the O-ring 57 come into contact, the O-ring 57 is compressed, and its restoring force performs the sealing function of the filter 40 (the function of preventing the entry of foreign matter).

[0035] The lower surface of the inner wall ring 17 fixed inside the top cover 14 is configured as a symmetric horizontal plane 17a. When the filter 40 is installed inside the cyclone separator 20, the gasket 55 attached to the stepped portion 50a of the connecting pipe 50 is in contact with the symmetric horizontal plane 17a.

[0036] As shown in Figure 1, a bottom plate 45 is provided inside the bottom cover 18 of the cyclone separator 20, and a leaf spring disc 46 is fixed to the upper surface of this bottom plate 45. Figure 5 is a plan view of this leaf spring disc 46. A leaf spring piece 46a is formed on the leaf spring disc 46 by a notch 46c, and the leaf spring piece 46a is bent upward. This bending causes the leaf spring piece 46a to be positioned above the bottom plate 45, generating elasticity. In the mounting state of the filter 40 shown in Figure 1, a plug 49 fixed to the lower end of the filter 40 abuts against the leaf spring piece 46a, compressing the leaf spring piece 46a, and the filter 40 is pressed upward by the biasing force of the leaf spring piece 46a.

[0037] This biasing force presses the stepped portion 50a of the connecting pipe 50 against the target horizontal plane 17a, compressing the gasket 55 attached to the stepped portion 50a of the connecting pipe 50, and its restoring force provides a sealing function. In this state, the body pipe 10 and the top cover 14 are fixed together by the clamp structure of the fastener 13, and the position of the filter 40 within the cyclone separator 20 is fixed. The length of the mesh cylinder 41 of the filter 40 in the direction of the centerline L1 and the height of the leaf spring piece 46a are set so that the gasket 55 performs an appropriate sealing function.

[0038] As described above, in this embodiment, the filter 40 is fixed inside the cyclone separator 20 by the biasing force of the leaf spring piece 46a, so the filter 40 can be securely attached. Furthermore, since the filter 40 is not attached by screw connection, drain and other substances do not adhere to the screw connection, and the accumulation of drain at the connection part of the filter 40 can be avoided.

[0039] In this embodiment, the filter 40 is mounted inside the cyclone separator 20 by the biasing force of the leaf spring piece 46a, and is not secured solely by the elasticity of the O-ring 57. Therefore, even if the O-ring 57 loses its elasticity due to aging or other reasons, the filter 40 will not fall off due to the biasing force of the leaf spring piece 46a.

[0040] (Explanation of the operation of the cyclone separator 20) Next, the operation of the cyclone separator 20 will be explained. Steam flows into the cyclone separator 20 from the inlet 11 in the direction of arrow 91 into the inlet passage 61. The incoming steam then swirls around the outer circumference of the inner tube 3, which is located at the top of the cyclone body 2, along its cylindrical shape, and collides with the guide vanes 8. It is then guided along the inclined wall 7 and flows spirally between the inner tube 3 and the outer tube 4.

[0041] In other words, the steam flowing in from the inlet 11 in the direction of arrow 91 is corrected in the direction of the spiral indicated by arrow 92 by the guide vanes 8 and inclined wall 7 of the cyclone body 2, and flows at high speed through the spiral channel 29. At this time, as described above, the guide vanes 8 have a roughly triangular shape with a width that gradually increases from top to bottom, so the steam flows smoothly between the inner tube 3 and the outer tube 4. The steam that flows at high speed into the spiral channel 29 inside the cyclone body 2 swirls along the cylindrical shape between the inner tube 3 and the outer tube 4 in the direction of arrow 92, then exits to the bottom of the cyclone body 2, and continues to swirl spirally around the outside of the filter 40 in the direction of arrow 92.

[0042] The spiral swirling of steam by the cyclone body 2 generates centrifugal force, and a greater centrifugal force acts on water, which has a higher specific gravity. As a result, the water that is ejected outward by the centrifugal force adheres to the inner wall 15 of the body tube 10 as water droplets. These water droplets then flow down the inner wall 15 and are discharged from the outlet 19. At this time, foreign matter such as relatively large debris and scale is separated from the steam along with the water droplets and discharged.

[0043] Thus, the dry steam, from which water droplets have been almost completely separated by centrifugal force, passes through the mesh cylinder 41 of the filter 40 and flows into the cylindrical space 42. As it passes through the mesh cylinder 41, fine dust and scale are captured. Subsequently, the dry steam flows in the direction of arrow 93, passes through the communication port 51 of the communication pipe 50, and flows out from the outlet 12. In this way, the dry steam that has passed through the cyclone separator 20 is supplied to the equipment that is the steam supply destination.

[0044] As described above, a gasket 55 and an O-ring 57 are attached to the connecting pipe 50 at the top of the filter 40, and the filter 40 is biased upward by a leaf spring 46a. As a result, the inside and outside of the filter 40 are sealed and isolated, so that vapor before passing through the mesh cylinder 41 does not enter the inside from the upper end of the filter 40, and reliable gas-liquid separation can be achieved.

[0045] Furthermore, because it has a double sealing structure consisting of a gasket 55 and an O-ring 57, even if one loses its sealing function due to deterioration over time, the other can ensure the sealing function. In addition, since the target horizontal surface 17a and target vertical surface 14b that the gasket 55 and O-ring 57 contact are in an orthogonal positional relationship, the steam intrusion path before passing through the mesh cylinder 41 can be bent. This bending of the intrusion path reduces the steam intrusion velocity if the gasket 55 loses its sealing function and the O-ring 57 takes over, thus ensuring a more reliable seal.

[0046] Furthermore, fine dust, scale, and other foreign matter captured by the filter 40 adhere to and accumulate on the mesh cylinder 41. For this reason, maintenance is performed to clean the filter 40 as needed. When performing maintenance, the fixing device 13 is released, the top cover 14 is removed from the body tube 10, the filter 40 is removed, and the mesh cylinder 41 is cleaned.

[0047] In this embodiment, the filter 40 is pressed against the inner surface of the top cover 14 and fixed in place by the biasing force of the leaf spring piece 46a, so the filter 40 can be easily removed simply by removing the top cover 14 from the body tube 10. Furthermore, when installing the filter 40 into the cyclone separator 20 after maintenance work is completed, it is only necessary to insert the filter 40 into the body tube 10, attach the top cover 14 to the body tube 10, and secure it using the fastener 13. As a result, maintenance can be easily performed and the efficiency of maintenance work can be improved.

[0048] [Other embodiments] In the above-described embodiment, a cyclone separator 20 using a centrifugal separation method was exemplified as the gas-liquid separation device. However, the gas-liquid separation device having a cylindrical filter according to the present invention can be applied to gas-liquid separation devices that perform gas-liquid separation by other methods. For example, as long as it has a cylindrical filter, the gas-liquid separation device having a cylindrical filter according to the present invention may be applied to gas-liquid separators that utilize surface tension.

[0049] Furthermore, in the embodiments described above, steam mixed with condensate as a multiphase flow was used as an example, and an example of separating condensate as a liquid phase from steam as a gas phase was shown. However, the invention is not limited to this, and the gas-liquid separation apparatus having a cylindrical filter according to the present invention can also be applied to the separation of air, water, oil, etc.

[0050] Furthermore, although the cyclone body 2 was exemplified as a separation means in the above-described embodiment, other configurations may be used as long as they are mechanisms that separate a multiphase flow into a gas phase (such as steam) and a liquid phase (such as drain).

[0051] Furthermore, although the above-described embodiment exemplified a cylindrical filter as filter 40, which is a laminated sintered metal filter, the filter is not limited to this, and other shapes and structures can be used as long as they have a filtration function. For example, a plastic sintered porous body, a ceramic sintered porous body, a PVA (polyvinyl alcohol) sponge, or a metal fiber can be used as the material. Also, as long as it has a substantially cylindrical shape, different sizes can be used for the length in the direction of the cylindrical centerline (centerline L1, etc.), the inner diameter, or the outer diameter.

[0052] Furthermore, in the embodiments described above, a gasket 55 was exemplified as the horizontal sealing means and sealing means, and an O-ring 57 was exemplified as the vertical sealing means and sealing means. However, the configurations of the gasket and O-ring can be reversed. Also, both can be made of O-rings, or both can be made of gaskets. Moreover, only one of the horizontal sealing means (gasket 55, etc.) or the sealing means (O-ring 57, etc.) may be provided. In addition, a configuration other than a gasket or O-ring may be used as the sealing means, as long as it seals and blocks the inside and outside of the cylindrical filter (filter 40, etc.).

[0053] Furthermore, in the above-described embodiment, an example was shown in which the stepped portion 50a and the target horizontal surface 17a to which the gasket 55 contacts and the insertion vertical surface 50b and the target vertical surface 14b to which the O-ring 57 contacts are in an orthogonal positional relationship. However, the invention is not limited to this, and the surfaces to which the gasket 55 and the O-ring 57 contact may be in a positional relationship other than perpendicular. Moreover, the gasket 55 and the O-ring 57 can be configured to contact target surfaces on the same plane.

[0054] Furthermore, in the embodiments described above, a leaf spring piece 46a formed on a leaf spring disc 46 was exemplified as the pressurizing means, but other mechanisms such as coil springs, elastic materials such as rubber, or pneumatics can also be used. Moreover, a gas-liquid separation device may be constructed by combining the embodiments described above. [Explanation of Symbols]

[0055] 2: Cyclone body 10: Body tube 11: Inlet 12: Outlet 14: Top lid 14b: Target vertical surface 17a: Target horizontal surface 18: Bottom lid 19: Discharge port 20: Cyclone separator 40: Filter 41: Mesh cylinder 46a: Leaf spring piece 49: Plug 50: Connecting pipe 50a: Stepped section 50b: Insertion vertical surface 55: Gasket 57: O-ring L1: Centerline

Claims

[Claim 1] A gas-liquid separation device that takes in a multiphase flow in which a gas phase and a liquid phase are mixed and separates them into a gas phase and a liquid phase, The apparatus body has an inlet into which the multiphase flow flows, a liquid phase outlet into which the separated liquid phase flows out, and a gas phase outlet into which the separated gas phase flows out. A separation means provided in the main body of the apparatus, wherein the multiphase flow is separated into the gas phase and the liquid phase. A cylindrical filter having a cylindrical filter surface, wherein the gas phase separated by the separation means passes through the filter surface, and one end of the cylindrical filter is attached to the mounting surface of the main body of the device. A sealing means interposed between the mounting surface of the main body of the apparatus and one end of the cylindrical filter, which seals and isolates the inside and outside of the cylindrical filter. Pressurizing means for pressurizing the other end of the cylindrical filter and pressing the one end of the cylindrical filter toward the mounting surface of the device body, It is equipped with, The mounting surface of the device body is configured to include a mounting horizontal surface that is horizontal or substantially horizontal with respect to the cylindrical centerline of the cylindrical filter, and a mounting vertical surface that is vertical or substantially vertical. The end of the cylindrical filter is configured to have a filter horizontal plane positioned horizontally or substantially horizontally with respect to the cylindrical centerline of the cylindrical filter, and a filter vertical plane positioned vertically or substantially vertically. The sealing means comprises a horizontal sealing means interposed between the mounting horizontal surface and the filter horizontal surface, and a vertical sealing means interposed between the mounting vertical surface and the filter vertical surface. A gas-liquid separation apparatus having a cylindrical filter, characterized by the above.

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