WO2006118238A1 - 集積パネルと流体デバイスとの接続構造 - Google Patents
集積パネルと流体デバイスとの接続構造 Download PDFInfo
- Publication number
- WO2006118238A1 WO2006118238A1 PCT/JP2006/308957 JP2006308957W WO2006118238A1 WO 2006118238 A1 WO2006118238 A1 WO 2006118238A1 JP 2006308957 W JP2006308957 W JP 2006308957W WO 2006118238 A1 WO2006118238 A1 WO 2006118238A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid supply
- fluid
- discharge
- annular
- gasket
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
Definitions
- the present invention relates to a connection structure between an integrated panel and a fluid device, and more specifically, a high-purity liquid used in manufacturing processes in various technical fields such as semiconductor manufacturing, medical 'pharmaceutical manufacturing, food processing, and chemical industry.
- a connection structure between an integrated panel and a fluid device, and more specifically, a high-purity liquid used in manufacturing processes in various technical fields such as semiconductor manufacturing, medical 'pharmaceutical manufacturing, food processing, and chemical industry.
- a connection structure between an integrated panel and a fluid device, and more specifically, a high-purity liquid used in manufacturing processes in various technical fields such as semiconductor manufacturing, medical 'pharmaceutical manufacturing, food processing, and chemical industry.
- connection structure for example, there is one in which a valve, which is an example of a fluid device, and an integrated panel in which a fluid passage is formed are connected and connected by connecting a pair of supply / discharge passages
- Connection structures disclosed in Document 1 and Patent Document 2 are known.
- Patent document 1 discloses a connection structure in which a pair of supply / discharge channels are arranged close to each other, and are connected in a liquid-tight manner with a plurality of bolts via independent ring-shaped gaskets.
- a pair of supply / exhaust flow paths are arranged close to each other, and a single gasket having a pair of flow path holes corresponding to the pair of supply / exhaust flow paths is provided as a single outer shell. It is connected and connected using a screw nut.
- connection structure disclosed in Patent Documents 1 and 2 adopts a so-called integrated piping structure in which a large number of fluid devices are integrated and attached to a fluid block. This is useful in that the entire system can be made compact. Therefore, in order to further promote compactness and modularity, not only the size of a single fluid device is reduced, but also the compactness of the fluid device itself has been realized. It is expected that there will be a demand for compactness of the connection structure.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-82609
- Patent Document 2 JP-A-10-169859
- the first object of the present invention is to provide an integrated panel and a fluid device that enable further compactness in a piping system that uses the integrated panel having the above-described advantages, and that enables further compactness.
- Propose and implement a connection structure Propose and implement a connection structure.
- the second object of the present invention is to devise the connection structure between the integrated panel and the fluid device in the fluid piping system, so that good sealing performance can be maintained with little additional tightening, It is an object of the present invention to provide a connection structure between an integrated panel and a fluid device that can improve the assembly workability. Means for solving the problem
- the tubular fluid passage 3a or the annular fluid passage and one or more annular fluid passages 4a are formed concentrically and opened.
- the first fluid supply / discharge port portion 1A of the integrated panel 1 provided with the first fluid supply / discharge port portion 1A, and the tubular fluid passage 7 or the annular fluid passage and one or more annular fluid passages 8 are concentric.
- a plurality of fluid passages 3a, 4a, 7, and 8 correspond to the second fluid supply / discharge portion 2A of the fluid device 2 having the second fluid supply / discharge port portion 2A that is formed and opened.
- the fluid passages 3a, 4a, 7, and 8 are sealed by a plurality of ring-shaped gaskets Gl and G2 interposed between the first fluid supply / exhaust port 1A and the second fluid supply / discharge port 2A.
- annular protrusions 21 and 11 are formed on the outer diameter side portions of the fluid passages 3a, 4a, 7, and 8 that open to the end surfaces. , 41, 31 are formed,
- the gaskets Gl and G2 are fluid paths Wl and W2 formed to communicate the fluid passages 3a, 4a, 7 and 8 corresponding to the first and second fluid supply / discharge portions 1A and 2A, respectively.
- outer diameter side portions of the fluid paths Wl, W2 to be fitted to the annular protrusions 21, 11, 41, 31 formed on the end faces of the first and second fluid supply / discharge portions 1A, 2A, respectively.
- a flexible material force having a pair of annular grooves 51, 61 formed in the
- the first fluid supply / discharge port portion 1A and the second fluid supply / discharge port portion 2A are attracted to each other via the plurality of gaskets Gl and G2, and the annular protrusion 21 of the first fluid supply / discharge port portion 1A is drawn. , 41 and the annular grooves 51, 61 at one end of each of the gaskets Gl, G2, and the annular projections 11, 31 of the second fluid supply / discharge part 2A and the annular grooves at the other end of the gaskets Gl, G2.
- Maintenance means I for maintaining the joined state in which the grooves 51, 61 are fitted to each other to form the fitting seal portion 10 is provided,
- the intermediate gasket G1 in which the fluid passage exists on both the inner diameter side and the outer diameter side in the joined state has an outer peripheral portion 55a on the outer diameter side of the intermediate gasket G1.
- the invention according to claim 2 is the connection structure between the integrated panel and the fluid device according to claim 1, wherein the annular protrusions 21 on the end surfaces of the first and second fluid supply / discharge portions 1A, 2A are provided. , 11, 41, 31 on the inner and outer diameter sides of the gaskets Gl, G2, the inner and outer peripheral wall ends 52, 53, 62 projecting in the axis P direction to form the annular grooves 51, 61 in the gasket Gl, G2. , 63 3 to prevent or prevent the annular groove 51, 61 and the annular projections 21, 11, 41, 31 from expanding and deforming, or the annular presser part 22, 23, 12, 13, 42, 43, 32, and 33 are formed!
- the invention according to claim 3 is the connection structure between the integrated panel and the fluid device according to claim 2, wherein the peripheral wall terminal 53, 62, 63 and the annular presser foot 22, 23, 12, 13, 42, 43, 32, and 33 are configured to be pressed to form a seal portion S ⁇ b> 2 in the joined state.
- the invention according to claim 4 is the connection structure of the integrated panel and the fluid device according to claim 3, wherein the annular presser foot 22, 23, 12, 13, 42, 43, 32 , 33 is a trough 25, 14, 15, 44, 45, 34, 35 force S surrounded by this and the annular projections 21, 11, 41, 31 S side of the annular projection so as to be constricted Are formed in a tapered annular protrusion having tapered peripheral surfaces 22a, 23a, 12a, 13a, 42a, 43a, 32a, 33a, and the peripheral wall end portions 52, 53, 62, 63 are the teno circumferential surfaces 22a, 23a, 12a, 13a, 42a, 43a, 32a, 33a of the annular presser portions 22, 23, 12, 13, 42, 43, 32, 33.
- 52a, 53a, 62a, 63a having a tapered annular protrusion that can enter the valleys 24, 25, 14, 15, 44, 45, 34, 35, and Is the peripheral wall edge 53, 62, 63 force S
- the trough 25, 14, 15, 44, 45, 34, 35 23a, 12a, 13a, 42a, 43a, 32a, 33a, 52a, 53a, 62a, 63a are configured to be pressed together.
- the invention according to claim 5 is the connection structure between the integrated panel and the fluid device according to any one of claims 1 to 4, wherein the cross-sectional shape of the gaskets Gl and G2 is the first and Second fluid supply / discharge parts 1A, 2A are configured to have a substantially H-shape that is symmetrical with respect to both the center line Z along the axis P and the center line X perpendicular to the center line Z. It is a life characterized by that!
- the invention according to claim 6 is the connection structure between the integrated panel and the fluid device according to any one of claims 1 to 5, wherein the maintaining means I is the first fluid supply / discharge part. 1A and the second fluid supply / exhaust port portion 2A are arranged so as to exhibit a bow I-shifting function for obtaining the joined state.
- the invention according to claim 7 is the connection structure between the integrated panel and the fluid device according to claim 6, wherein the maintaining means I includes the first fluid supply / discharge part 1A and the second fluid supply / discharge. 2A (or 1A), an outward flange 9 formed in the end portion 2A, a through hole 9a formed in the outward flange 9, and the first hole through the through hole 9a.
- the fluid supply / discharge port portion 1A and the second fluid supply / discharge port portion 2A are configured to have a bolt 66 that is screwed to a nut portion 67 provided on the other 1A (or 2A).
- the bolt 66 is screwed onto the nut portion 67 and tightened to tighten the first fluid supply / discharge.
- the mouth portion 1A and the second fluid supply / discharge port portion 2A are configured so as to be drawn to each other via the plurality of gaskets G1 and G2. It is characterized by that.
- the invention according to claim 8 is the connection structure between the integrated panel and the fluid device according to claim 6, wherein the maintaining means I includes the first fluid supply / discharge part 1A and the second fluid supply / discharge.
- the second fluid supply / discharge part 2 ⁇ , the other 2 ⁇ (or 1A) has an outward flange 9 formed at the end, and the first and second fluid supply / discharge ports 1A, 2 ⁇ interfere in the axial direction ⁇ direction.
- the first fluid supply / exhaust port portion 1A and the second fluid supply / discharge port portion 2 ⁇ have a gap between them or the other 2 ⁇ (or 1A) and a split ring 82 fitted on the end of
- One end of the cylindrical nut 81 allows the outward flange 9 to pass therethrough, and has an inward flange 83 having an opening 83a that interferes with the split ring 82 in the axial center direction. Is formed,
- the first fluid supply / discharge port portion 1A and the second fluid supply / discharge port portion 2A mutually attach the plurality of gaskets G1, G2. Configured to be attracted through! It is characterized by that.
- the invention according to claim 9 is the connection structure between the integrated panel and the fluid device according to any one of claims 1 to 8, wherein the gaskets Gl and G2 are formed of fluorine resin. It is characterized by that.
- the invention according to claim 10 is the connection structure between the integrated panel and the fluid device according to any one of claims 1 to 9, wherein the first and second fluid supply / discharge parts 1A, 2A Is formed of fluorine resin.
- the first of the integrated panel 1 including the first fluid supply / discharge rod portion 1A in which the tubular fluid passages 3 and 4 are opened.
- the fluid supply / discharge part 1A and the second fluid supply / discharge port part 2A of the fluid device 2 provided with the second fluid supply / discharge part 2A in which the tubular fluid passages 7, 8 are opened are connected to the first fluid supply.
- annular protrusions 11 and 21 are formed on the outer diameter side portions of the fluid passages 3, 4, 7, and 8 that open to the respective end surfaces.
- the gasket G includes a fluid path W formed to communicate the fluid paths 3, 4, 7, and 8 corresponding to the first and second fluid supply / discharge portions 1A and 2A, and A pair of annular grooves formed in the outer diameter side portion of the fluid path W to be fitted to the annular protrusions 11 and 21 formed on the end surfaces of the first and second fluid supply / discharge portions 1A and 2A, respectively. 51, 51 and a flexible material cover,
- the first fluid supply / exhaust port portion 1A and the second fluid supply / discharge port portion 2A are attracted to each other via the gasket G, and the annular protrusion 11 of the first fluid supply / discharge port portion 1A and the The annular groove 51 at one end of the gasket G and the annular protrusion 21 of the second fluid supply / discharge part 2A and the annular groove 51 at the other end of the gasket G are fitted together to form a fitting seal part 10. It is characterized by being equipped with maintenance means I for maintaining the formed joint state.
- the invention according to claim 12 is the connection structure between the integrated panel and the fluid device according to claim 11, wherein the annular protrusions 11 on the end surfaces of the first and second fluid supply / discharge portions 1A, 2A are provided. , 21 on the inner and outer diameter sides of the gasket G, the inner and outer peripheral wall end portions 52, 53 projecting in the axial direction to form the annular groove 51 are formed on the annular groove 51 and the annular protrusion. 11 and 21, annular presser portions 12, 13, 22, and 23 are formed to suppress or prevent expansion and deformation due to the fitting.
- the invention according to claim 13 is the connection structure between the integrated panel and the fluid device according to claim 12, wherein the peripheral wall end portions 52, 53 and the annular presser portions 12, 13, 22, 23 are In the joined state, the seal portion S2 is formed by being pressure-welded.
- the invention according to claim 14 is the connection structure between the integrated panel and the fluid device according to claim 13, wherein the annular pressing portions 12, 13, 22, 23 are connected to the annular protrusions 11, 21, and The tapered circumferential surfaces 12a, 13a, 22a, and 23a are inclined so that the valleys 14, 15, 24, and 25 surrounded by It is formed in an annular projection, and the peripheral wall end portions 52, 53 are tapes of the annular presser portions 12, 13, 22, 23.
- the peripheral surface 12a, 13a, 22a, 23a has a teno peripheral surface 52a, 53a, and is formed in a tapered annular protrusion that can enter the valleys 14, 15, 24, 25, and In the joined state, the peripheral wall end portions 52, 53 enter the trough portions 14, 15, 24, 25, and the teno peripheral surfaces 12a, 13a, 22a, 23a, 52a, 53a are configured to be in pressure contact with each other. It is a character characterized by
- the invention according to claim 15 provides the first fluid supply / discharge to the integrated panel 1 through the connection structure between the integrated panel and the fluid device according to any one of claims 11 to 14.
- a plurality of mouth portions 1A are formed, and a plurality of second fluid supply / discharge port portions 2A are formed in the fluid device 2 corresponding to the number of the first fluid supply / discharge portion 1A.
- the second fluid supply / exhaust port portions 1A and 2A are arranged on the same plane, and are configured to be connected to each other via the gasket G, respectively.
- the invention according to claim 16 is the connection structure between the integrated panel and the fluid device according to any one of claims 11 to 15, wherein the cross-sectional shape of the gasket G is the first and second.
- Fluid supply / discharge parts 1A, 2A are configured to have a substantially H-shaped shape that is symmetrical with respect to both the center line Z along the axis P and the center line X perpendicular to the center line Z. It is characterized by being.
- the invention according to claim 17 is the connection structure between the integrated panel and the fluid device according to any one of claims 11 to 16, wherein the maintaining means I is the first fluid supply / discharge part. 1A and the second fluid supply / exhaust port portion 2A are arranged so as to exhibit a bow I-shift function for obtaining the joined state.
- the invention according to claim 18 is the connection structure between the integrated panel and the fluid device according to claim 17, wherein the maintaining means I includes the first fluid supply / discharge section 1A and the second fluid supply / discharge section. Part 2A, an outward flange 9B formed at at least one end of the part, a through hole 9a formed in the outward flange 9B, and the first fluid supply / discharge part 1A through the through hole 9a And the second fluid supply / discharge part 2A, and a bolt 66 screwed to a nut part 67 provided on the other,
- the first fluid supply / exhaust port portion 1A and the second fluid supply / discharge port portion 2A are attracted to each other via the gasket G by screwing and tightening the bolt 66 to the nut portion 67. It is comprised in that, It is characterized by the above.
- the invention according to claim 19 is the connection structure between the integrated panel and the fluid device according to claim 17, wherein the maintaining means I includes the first fluid supply / discharge part 1A and the second fluid supply / discharge part.
- the first fluid supply and discharge port 2A is configured to interfere with an outward flange 9B formed at the other end of the fluid supply and discharge port portion 2A in the direction of the axis P of the first and second fluid supply and discharge portions 1A and 2A.
- the outlet part 1A and the second fluid supply / exhaust part 2A are composed of a split ring 82 fitted on the other end of the second part,
- An inward flange 83 having an opening 83a that allows passage of the outward flange 9B at one end portion of the cylindrical nut 81 and interferes with the split ring 82 in the axis P direction. Formed,
- the first fluid supply / exhaust port portion 1A and the second fluid supply / discharge rod portion 2A are attracted to each other via the gasket G by the tightening operation of the cylindrical nut 81 to the male screw portion In. It is characterized by that.
- the gasket G is formed of fluorine resin. It is characterized by.
- the invention according to claim 21 is the connection structure between the integrated panel and the fluid device according to any one of claims 11 to 20, wherein the first and second fluid supply / discharge parts 1A, 2A Is formed of fluorine resin.
- connection structure portion by connecting two or more fluid passages concentrically, a connection structure portion can be more compact than a structure in which a plurality of fluid passages are arranged independently. It is a means to try. Since the annular protrusions formed on the first and second fluid supply / discharge portions and the annular grooves formed on one end surface and the other end surface of the gasket are fitted to each other to form a fitting seal portion, 1 and 2 It is possible to prevent liquid leakage from the fluid supply / discharge section and obtain excellent sealing performance. For example, if such a connection structure is used for a piping system of a cleaning device in a semiconductor manufacturing facility, it is possible to ensure good sealing performance. The area occupied by the device can be reduced, which is advantageous in terms of cost, and by providing a large flow path, it is possible to increase the circulation flow rate, increase the purity of the chemical solution, and contribute to improving the yield. Is possible.
- the maintaining means can maintain the joined state in which the fluid supply / drainage parts are attracted to each other via the gasket, the integrated panel and the fluid device can ensure good sealing performance without leakage. Can be maintained over a long period of time, and a connection structure between an integrated panel and a fluid device that is excellent in reliability can be provided.
- the outer periphery not only the inner periphery of the intermediate gasket is also used as the wall surface of the fluid path.
- the distance between the passages is only the thickness of the intermediate gasket, and it is possible to arrange multiple fluid passages as close to the radial direction as possible, and it is possible to further compact the connection structure between the integrated panel and the fluid device.
- a connection structure between an integrated panel that connects a plurality of fluid passages arranged concentrically and a fluid device can be realized, thereby promoting the integration of fluid devices that are advantageous for modularization.
- the concave and convex sides tend to spread and tend to be deformed easily, that is, in the present invention, that is, the inner and outer portions formed on the gasket to form the annular groove.
- the edge of the peripheral wall expands and deforms. Therefore, an annular presser that suppresses or prevents the expansion deformation of the peripheral wall end. Since the portions are formed in the first and second fluid supply / discharge parts, the expansion deformation of the peripheral wall end is canceled or reduced, and the annular protrusion and the annular groove can be fitted with a strong pressure contact force. The excellent sealing function due to the fitting of both can be achieved as expected.
- the thickness of the end of the peripheral wall of the gasket can be reduced compared to the case where these do not exist. Therefore, by reducing the width of the gasket, the overall diameter of a plurality of fluid passages arranged concentrically can be reduced, that is, the structure for connecting the integrated panel and the fluid device can be further reduced. The advantage is also obtained.
- the seal portion in the joined state, is formed by pressure contact between the annular protrusions of the first and second fluid supply / discharge rod portions and the annular groove on one end surface or the other end surface of each gasket.
- a fitting seal portion with better sealing performance is formed, thereby providing a connection structure between the integrated panel and the fluid device with better sealing performance.
- the annular projections of the first and second fluid supply / discharge portions and the fitting portion between the annular groove on one end surface or the other end surface of each gasket are provided.
- the taper peripheral surface of the first and second fluid supply and discharge parts and the taper peripheral surface of the gasket are in pressure contact with each other on the inner diameter side and the outer diameter side.
- the gasket since the gasket has a substantially H-shaped cross section that is symmetrical in the vertical and horizontal directions, for example, the gasket can be manufactured more easily than an asymmetrical one. At the same time, it is possible to achieve an excellent balance (strength balance, assembly balance) when fitted to each fluid device. This also has the advantage of requiring only one type of gasket.
- the maintaining means I joins the first fluid supply / discharge part and the second fluid supply / discharge part by pulling the first fluid supply / discharge part only by maintaining the joined state of the multiple pipe joint structure. To get the status Therefore, there is no need to prepare any other attracting means, and there is an advantage that it is possible to reduce costs by omitting assembly work as a whole.
- the cylindrical shape engaged with the outward flange formed at one end of the first and second fluid supply / discharge portions via the split ring.
- the cylindrical nut can be externally fitted and detached at the end of the first fluid supply / discharge port portion or the second fluid supply / discharge port portion. Since it interferes with both sides of the ring in the axial direction, the split ring and the cylindrical nut can be connected to the first or second fluid supply / discharge rod while the first and second fluid supply / discharge rods can be directly connected by the cylindrical nut. Can be retrofitted to the part. In addition, a small number of parts and only one kind of part can be used. The tightening force of the cylindrical nut can be reliably transmitted to the outward flange while being economical and reasonable. Therefore, when the first or second fluidic device is manufactured, the cylindrical nut is used to connect the integrated panel and the fluidic device without using a difficult manufacturing method in which the cylindrical nut is externally fitted to the fluid supply / discharge portion. Connection operation is easy and convenient.
- the gasket is formed of a fluorine-based resin having characteristics excellent in chemical resistance and heat resistance because both fluid supply / discharge ports are made of a chemical solution. Even if it is a chemical liquid or a high-temperature fluid, a good sealing performance can be maintained without the pipe joint structure being deformed and easily leaking.
- Fluorine-based resin is obtained by polymerization of ethylene and its derivatives in which one or more hydrogen atoms are substituted with fluorine. It is a waxy substance that is stable at high temperatures and excellent in water repellency. Further, it is preferable in that it has a small coefficient of friction, extremely high chemical resistance, and high electrical insulation.
- the annular protrusion formed in each of the first and second fluid supply / discharge portions and the annular groove formed in each of the one end surface and the other end surface of the gasket are Since the fitting seal part is formed by fitting with each other by relative movement in the direction, even if they both move slightly in the axial direction, the fitting state between the annular protrusion and the annular groove is maintained. It is possible to continue to exhibit excellent sealing performance that prevents liquid leakage from between the fluid supply and discharge parts. For example, if such a connection structure is used in the piping system of a cleaning device in a semiconductor manufacturing facility, the area occupied by the device can be reduced while ensuring good sealing performance, and a large flow path is provided. As a result, it is possible to increase the circulation flow rate, increase the purity of the chemical solution, and contribute to the yield improvement.
- the maintenance means can maintain the joined state in which both fluid supply / discharge parts are attracted to each other via the gasket, so that the integrated panel and the fluid device ensure good sealing performance without liquid leakage. It is possible to provide a connection structure between an integrated panel and a fluid device that can maintain a possible state over a long period of time and is excellent in reliability. As a result, it is possible to provide a connection structure between an integrated panel and a fluid device that can maintain good sealing performance with little additional tightening and that can improve its assembly workability.
- the concave-convex fitting tends to expand and the concave side tends to be easily deformed.
- the ends of the inner and outer peripheral walls formed in the gasket to form a groove are expanded and deformed.
- the first and second fluid supply / drainage portions are formed with an annular presser portion that suppresses or prevents the expansion deformation of the peripheral wall end portion, so that the expansion deformation of the peripheral wall end portion is canceled or reduced and the annular protrusion is formed.
- the annular groove can be engaged with each other with a strong pressure contact force, and the excellent sealing function due to the engagement of both can be achieved as expected.
- the rigidity of the peripheral wall end can be compensated for by the presence of the annular pressing part, it is possible to reduce the thickness of the peripheral wall end of the gasket compared to the case where they do not exist.
- the overall size of the fluid passage can be reduced by reducing the width of the gasket, that is, the compactness as the connection structure between the integrated panel and the fluid device can be achieved.
- the seal portion in the joined state, is formed by pressure contact between the annular protrusions of the first and second fluid supply / discharge rod portions and the annular groove on one end surface or the other end surface of each gasket.
- a fitting seal portion having a higher sealing property is formed, and a connection structure between the integrated panel and the fluid device having excellent sealing performance can be obtained.
- the annular protrusions of the first and second fluid supply / discharge portions and the fitting portion between the annular groove on one end surface or the other end surface of each gasket are provided.
- the taper peripheral surface of the first and second fluid supply and discharge parts and the taper peripheral surface of the gasket are in pressure contact with each other on the inner diameter side and the outer diameter side. It is possible to obtain the effects of both externalizing the connecting structure portion (claim 12) and improving the sealing performance (claim 13).
- the structure is such that the tapered peripheral surfaces come into contact with each other, the pressure contact force increases as the integrated panel or fluid device and the gasket are pressed strongly, and the advantages of the above-mentioned compactness and improved sealing performance can be further enhanced. is there. Further, it is possible to provide a connection structure that does not cause liquid accumulation between the taper peripheral surfaces.
- connection structure of the integrated panel and the fluid device are constructed on the same plane, the component processing is performed as compared with the case where they are not on the same plane. This is advantageous in that it requires less or is easy to perform assembling.
- the components (first fluid supply / discharge port, gasket, etc.) in each connection structure can be shared or integrated (each first fluid supply / discharge port for supply / discharge is connected to a single block of a pair of fluid passages). To form Etc.), and there is an advantage that rationality can be achieved.
- the gasket is formed in a substantially H-shaped cross section that is line-symmetrical in the vertical and horizontal directions, for example, it is fitted with the gasket and this compared to an asymmetrical one.
- Design and manufacture of the first and second fluid supply and discharge parts, which are parts, is easy, and has excellent tolerance (strength balance and assembly balance) when fitted to integrated panels and fluid devices. it can.
- the maintaining means only maintains the joined state of the first fluid supply / discharge port portion and the second fluid supply / discharge port portion, and the first fluid supply / discharge portion and the second fluid supply / discharge portion.
- the drawing function for drawing the fluid supply and discharge part to obtain a joined state can also be demonstrated, eliminating the need for additional drawing means and eliminating the need for additional threading and overall labor. There is an advantage that can be achieved.
- a cylindrical shape engaged with an outward flange formed at one end of the first and second fluid supply / discharge portions via the split ring.
- the cylindrical nut can be externally fitted and detached at the end of the first fluid supply / discharge port portion or the second fluid supply / discharge port portion. Since it interferes with both sides of the ring in the axial direction, the split ring and the cylindrical nut can be connected to the first or second fluid supply / discharge rod while the first and second fluid supply / discharge rods can be directly connected by the cylindrical nut. Can be retrofitted to the part. Therefore, only a small number of parts such as a cylindrical nut and split ring is required.
- the cylindrical nut that does not take the difficult manufacturing method of fitting and fitting the cylindrical nut to the fluid supply / discharge portion when manufacturing the first or second fluid device while making it economical and reasonable.
- the connection operation between the integrated panel and the fluid device can be easily and conveniently performed.
- the gasket is formed of a fluorine-based resin having properties excellent in chemical resistance and heat resistance, so that the fluid is a chemical solution. Even if it is an ionic liquid or a high-temperature fluid, a good sealing performance can be maintained without the pipe joint structure being deformed and easily leaking.
- Fluorine-based greaves are greaves-like substances obtained by polymerization of ethylene in which one or more hydrogen atoms are substituted with fluorine, and derivatives thereof, and are stable at high temperatures and excellent in water repellency. In addition, it is preferable in that it has a small coefficient of friction, a very high chemical resistance, and a high electrical insulation.
- FIG. 1 is a cross-sectional view (Example 1) showing a concentric multi-channel connection structure between an integrated panel and a valve.
- FIG. 2 is a cross-sectional view of main parts of a gasket and a fluid supply / discharge portion used in the connection structure of FIG.
- FIG. 3 is an enlarged cross-sectional view of a main part showing details of a fitting structure between a gasket and a fluid device.
- FIG. 4 is a cross-sectional view (Example 2) showing a concentric multi-channel connection structure between an integrated panel and a pump via a flange pipe.
- FIG. 5 is a cross-sectional view of a main part showing a first alternative structure of the maintaining means with a pulling function (Example 3).
- FIG. 6 is an explanatory diagram showing a connection procedure of the connection structure having the maintaining means of FIG. 4.
- FIG. 7 is a cross-sectional view of a main part showing a second alternative structure of the maintaining means with a pulling function (Example 4).
- FIG. 8 is an explanatory diagram showing a connection procedure of the connection structure having the maintaining means of FIG. 6.
- FIG. 9 is a sectional view of a main part showing the structure of the maintaining means (Example 5).
- FIG. 10 is a cross-sectional view (Example 6) showing a single channel connection structure between an integrated panel and a valve.
- FIG. 11 is a cross-sectional view of the main parts of the gasket and fluid supply / discharge portion used in the connection structure of FIG.
- FIG. 12 is an enlarged cross-sectional view of the main part showing details of the fitting structure between the gasket and the fluidic device.
- ⁇ 13] is a cross-sectional view (Example 7) showing a connection structure between the integrated panel and the bellows type valve.
- ⁇ 14] is a cross-sectional view (Example 8) showing a connection structure between the integrated panel and the filter.
- FIG. 15 is a cross-sectional view of a main part showing the case where the maintaining means of FIG. 5 is applied to a single-channel connection structure (Example 9).
- FIG. 16 is an explanatory view showing a connection procedure of the connection structure having the maintaining means of FIG.
- FIG. 17 is a cross-sectional view of a main part showing the case where the maintaining means of FIG. 7 is applied to a single-channel connection structure (Example 10).
- connection structure having the maintaining means of FIG. 18 is an explanatory diagram showing a connection procedure of the connection structure having the maintaining means of FIG.
- FIG. 10 is a cross-sectional view of a main part showing the case where the maintaining means of FIG. 9 is applied to a single channel connection structure (Example 11).
- FIG. 20 is a cross-sectional view of a main part showing a third alternative structure of the maintaining means with a pulling function (Example 12).
- ⁇ 21 A sectional view of a main part showing a fourth alternative structure of the maintaining means with a pulling function (Example 13).
- FIGS. 10 to 21 show single-channel connection structures, respectively.
- Figures 1 and 2 are integrated panels according to Example 1.
- Fig. 3 is a cross-sectional view of the main part showing the detailed fitting structure between the first gasket and the first fluid supply / discharge part
- Fig. 4 is an implementation.
- Overall view showing the connection structure between the integrated panel and the fluid device according to Example 2 Figs. 5 and 6 are cross-sectional views and assembly explanatory diagrams of the maintenance means according to the first separate structure, and Figs. 7 and 8 are the second separate structure.
- FIG. 9 is a cross-sectional view of the maintenance means according to the third alternative structure
- FIG. 9 is a sectional view of the maintenance means according to the third alternative structure.
- FIGS. 10 to 12 show the connection structure between the integrated panel and the fluid device according to Example 6, and
- FIGS. 13 and 14 show the connection structure between the integrated panel and the fluid device according to Examples 7 and 8, respectively.
- Figures 15 to 21 show alternative structures for the maintenance means!
- connection structure between the integrated panel and the fluidic device according to Example 1 is shown in FIGS.
- the connection structure between the integrated panel and the fluid device includes an integrated panel 1 in which a plurality of tubular fluid passages 3 and 4 are formed inside, and a total of two ring-shaped gaskets Gl, This is a concentric double-channel type that shares a longitudinal axis P that is configured across valves (open / close valves, stop valves, etc.) 2 mounted via G2.
- the integrated panel 1 has a panel material (or block material) 5 made of fluorocarbon resin such as PFA or PTFE, and has an up-and-down orientation that opens to the upper surface la of the panel.
- a tubular supply-side fluid passage 3 composed of a longitudinal passage 3a and a transverse passage 3b, an annular longitudinal ring passage 4a formed on the outer diameter side of the longitudinal passage 3a and opened to the upper surface la of the panel, and a bottom portion thereof.
- the discharge side fluid passage 4 is formed by the lateral passage 4b that communicates with the side passage 4b.
- a portion where the supply and discharge fluid passages 3 and 4 in the integrated panel 1 are opened in a double pipe shape is referred to as a first fluid supply and discharge portion 1A.
- a tubular shape is used in the first fluid supply and discharge portion 1A.
- the longitudinal passage 3a and the annular longitudinal ring passage 4a are formed as concentric passages having the same axis P.
- the first fluid supply / discharge part 1A has an annular shape centered on the axis P and protrudes upward in each of the outer diameter side portions of the fluid passages 3 and 4 that open to the upper end surface thereof.
- a lower first seal end t21 and a lower second seal end t22 having inner and outer annular protrusions 21, 41 are formed.
- the valve (an example of a fluid device) 2 has a valve case 6 made of a fluorine resin such as PFA or PTFE and having a circular shape in the vertical direction.
- the valve case The lower end of the pipe 6 is formed in a tubular supply-side fluid passage 7 that is vertically disposed in the center of the supply-side fluid passage 7 so as to open to the bottom surface 6a, and is formed on the outer diameter side of the supply-side fluid passage 7 so that It is formed in a second fluid supply / discharge portion 2A having an annular discharge side fluid passage 8 arranged vertically in an open state.
- the tubular supply side fluid passage 7 and the annular discharge side fluid passage 8 are formed as concentric passages having the same axis P.
- a mounting flange 9 made of fluorine resin such as PFA or PTFE or other material having a pair of bolt insertion holes 9a is integrally bonded to the outer periphery of the lower end of the valve case 6 by fusion.
- the valve case 6 and the mounting flange 9 may be an integral type integrally formed by cutting or molding.
- the second fluid supply / discharge part 2A has an annular shape centered on the axis P and is located above each of the outer diameter side portions of the fluid passages 7, 8 that open to the lower end surface thereof.
- An upper first seal end portion tl 1 and an upper second seal end portion tl 2 having projecting inner and outer annular projections 11 and 31 are formed.
- the inner and outer gaskets Gl and G2 are formed to have the same cross-sectional shape only with different diameters.
- the structure will be described by taking the inner first gasket G1 as an example.
- the outer second gasket G2 which will not be described, will be given the corresponding reference numerals in the parts corresponding to the first gasket G1 (eg, 54a ⁇ 64a).
- the first gasket G1 is a tubular fluid path formed to connect the longitudinal passage 3a and the supply-side fluid passage 7 which are fluid passages corresponding to the first and second fluid supply / discharge portions 1A and 2A.
- W1 is fitted into each of the annular protrusion 11 of the upper first seal end 11 and the annular protrusion 31 of the upper second seal end 12 formed on the end surfaces of the first and second fluid supply / discharge portions 1A and 2A. It is made of fluorine resin such as PFA or PTFE, which has a pair of upper and lower annular grooves 51, 51 formed in the outer diameter side portion of the fluid path W1.
- fluorine resin such as PFA or PTFE
- the cross-sectional shape of the first gasket G1 has a pair of upper and lower annular grooves 51, 51, an inner peripheral wall 54 and an outer peripheral wall 55 for forming the annular grooves 51, 51, and an upper and lower ring.
- the grooves 51, 51 are vertically symmetric with the same depth and width, and the inner and outer peripheral walls 54, 55 are also symmetric with respect to the first and second fluid supply / discharge parts 1A, 2A. It is formed in a substantially H-shaped shape that is line-symmetric (almost linearly symmetric) with respect to both the vertical center Z along the axis P direction and the horizontal center line X orthogonal to the vertical center line Z.
- the upper and lower ends of the inner peripheral wall 54 are formed on the tapered inner peripheral surfaces 52a, 52a that are inclined outwardly in a flared shape, and the upper and lower ends of the outer peripheral wall 55 are also the upper and lower ends of the outer peripheral surface 55a.
- the portions are formed on tapered outer peripheral surfaces 53a, 53a inclined inward.
- the structure related to the annular pressing protrusion will be described with respect to the first gasket G1 and the upper first seal end ti l.
- the inner and outer annular presser protrusions 12 and 13 are symmetrical, and the valleys 14 and 15 surrounded by these annular protrusions 11 and 15 are constricted (upwardly constricted) so that they are on the annular protrusion side.
- the side peripheral surface is formed into a tapered annular protrusion having a tapered outer peripheral surface 12a and a tapered inner peripheral surface 13a. That is, the upper first seal end til is a general term for the annular protrusion 11 and the annular presser protrusions 12 and 13 and the troughs 14 and 15 formed on both the inside and outside of the annular protrusion 11.
- the upper ends of the inner and outer peripheral walls 54, 55 of the first gasket G1 are tapered inner peripheral surfaces 52a and tapered outer peripheries that respectively contact the taper outer peripheral surface 12a and the taper inner peripheral surface 13a of the annular presser protrusions 12, 13.
- the upper seal portion gl l is formed at the upper end portion of the first gasket G1 by the annular groove 51 and the inner and outer annular seal projections 52, 53, and similarly, the lower seal is provided at the lower end portion.
- Part gl2 is formed!
- the upper seal part gl 1 is fitted with the upper first seal end part tl 1 to form a fitting seal part 10
- the lower seal part g 12 is fitted with the lower second seal end part t 21 and is fitted.
- Part 10 Form.
- the upper gasket part g21 and the lower seal part g22 are also formed on the second gasket, and are fitted to the upper second seal end part tl2 and the lower second seal end part t22, respectively, and are fitted into the fitting seal part.
- the fitting structure of the fitting seal portion 10 will be described in detail with respect to the upper first seal end ti l and the upper seal portion gl l of the first gasket G1, as shown in FIG. 2 and FIG.
- the inner and outer troughs 14, 15 and the inner and outer annular seal projections 52, 53 are symmetrical to each other, and the inner and outer troughs 14, 15 as a whole have an included angle ⁇ ° and the inner and outer annular seal projections 52, 53 as a whole.
- ⁇ ° + (20-40 °) ⁇ ° is set.
- the upper inner annular retainer protrusion 12 and the upper inner annular seal protrusion 52 are The taper outer peripheral surface 12a and the taper inner peripheral surface 52a are brought into pressure contact with each other at the innermost diameter side portion (see the phantom line in Fig. 3), and the fluid force passing through the fluid passage W1 S these outer tapered surfaces 12a , 52a can be used as a secondary seal portion S2 that prevents entry into the space.
- a relationship of hi h2 is set between the protruding length hi of the upper annular protrusion 11 and the depth h2 of the upper annular groove 51.
- a primary seal S1 that exhibits excellent sealing performance to prevent leakage of the upper inner ring is formed, and the tapered outer peripheral surface 12a of the upper inner annular presser protrusion 12 and the tapered inner peripheral surface 52a of the upper inner annular seal protrusion 52 are always in contact with each other.
- the secondary seal portion S2 described above is formed well.
- the opening angle of the recess that is, the included angle between the inclined cut surface 12b and the tapered inner peripheral surface 52a, avoids the possibility of liquid accumulation due to a sufficiently large surface tension.
- the inner and outer angles of the tip end of the annular protrusion 11 have a chamfered shape 11a, the press-fitting movement into the narrow annular groove 51 can be smoothly performed without any inconvenience such as force.
- the opening angle of the taper circumferential surface 12a, 13a on the annular protrusion side of the annular presser protrusions 1, 2, 13 (the opening angle of the valleys 14, 15) D is in the range of 50 to 70 degrees.
- the value (50 ° ⁇ D ° ⁇ 70 °) is set, and the sharp angle E of the peripheral surface 52a, 53a of the annular seal protrusion 52, 53 is a value in the range of 60 to 80 degrees (60 ° ⁇ D ° ⁇ 80 °).
- the taper angle E of the taper circumferential surfaces 52a, 53a (tapered inner circumferential surface 52a, tapered outer circumferential surface 53a) is a tapered circumferential surface 12a on the annular projection 11 side in the annular pressing projections 12, 13 with respect to the pulling direction.
- the opening angle D of 13a (tapered outer peripheral surface 12a, tapered inner peripheral surface 13a) is set to a value that is 10 to 20 degrees, preferably 10 degrees or almost 10 degrees.
- the sharp angle E is set to 60 to 80 degrees, preferably 80 degrees or almost 80 degrees.
- the sharpness angle E and the opening angle D are set to an obtuse angle value close to 90 degrees.
- the annular presser protrusions 12 and 13 are relatively improved in strength and rigidity as the protrusion amount in the pulling direction (axial direction) is smaller than the radial width thereof.
- the taper peripheral surfaces 52a and 53a can reduce the component force that radially presses the annular presser protrusions 1 and 13, and also from this point The spreading deformation of the presser protrusions 12 and 13 in the radial direction can be suppressed.
- the structure of the fitting seal portion 10 described above is configured similarly in the lower side of the first gasket G1 and also in the second gasket G2, and corresponding portions are denoted by corresponding reference numerals. To do.
- the second gasket G2 has a different diameter, the cross-sectional shape is exactly the same as that of the first gasket G1.
- the upper second seal end t12 and the lower second seal end t22 of the first and second fluid supply / discharge parts 1A and 2A have no fluid passages on the outer peripheral side thereof, so The shape of the seal end ti l is slightly different from that of the lower second seal end t21.
- the upper second seal end portion tl2 there is a lower end inner peripheral portion 6b for forming the lower end portion of the valve case 6 in a state following the tapered inner peripheral surface 33a of the annular presser protrusion 33. It is a point.
- the lower end inner peripheral portion 6b functions as a guide when the upper seal portion g21 of the second gasket G2 is fitted to the upper second seal end portion tl2, and also the taper inner peripheral surface 33a and the second gasket G2 The function of preventing the outer wall 65 from spreading and deforming can also be exhibited.
- the panel material 5 is continuously present on the outer peripheral side of the outer annular pressing projection 43, and the lower seal part g22 and the lower second seal end part At the time of fitting with t22, the effect of preventing the expansion deformation of the outer annular seal projection 63 of the lower seal portion g22 of the second gasket G2 from being blocked by the tapered inner peripheral surface 43a is enhanced.
- the first gasket G1 which is an intermediate gasket having fluid passages 7 and 8 on both the inner diameter side and the outer diameter side in the joined state
- the outer peripheral surface 55a which is a portion, connects the annular fluid passage 4a of the first fluid supply / discharge portion 1A and the annular fluid passage 8 of the second fluid supply / discharge portion 2A that exist on the outer diameter side of the first gasket G1. It is formed in a state that becomes a wall surface for forming an annular fluid path W2 in communication.
- both the inner and outer peripheral surfaces 54a and 55a of the first gasket G1 form walls that form the fluid passages Wl and W2.
- the thickness of the first gasket G1 “the interval between the annular fluid passages 3a, 7 and the tubular fluid passages 4a, 8”, and the first and second fluid supply / discharge portions 1A, 2A It becomes possible to make the connection part of the more compact.
- the thickness of the attachment / detachment flange If is set to a value smaller than the gap between the first and second fluid supply / discharge rod portions 1A, 2A in the joined state.
- the maintaining means I includes a first fluid supply / discharge portion 1A of the integrated panel 1 and a second fluid supply / discharge portion 2A of the valve 2 that are connected to each other by the first and second gaskets Gl. , G2 and the first fluid supply / exhaust port 1A, the upper first seal end tl1 and upper second seal end tl2, and the first and second gaskets Gl.
- G2 upper seal part gl l, g21 and force and second fluid supply / discharge part 2A lower first and lower second seal end t21, t22 and first and second gaskets Gl, G2 lower seal
- the parts gl2 and g22 are fitted together to maintain the joined state in which each fitting seal part 10 is formed. That is, the annular protrusions 11 and 31 of the second fluid supply / discharge part 2A and the upper annular grooves 51 and 61 of the first and second gaskets Gl and G2 and the annular protrusion of the first fluid supply / discharge part 1A 21, 41 and the annular grooves 51, 61 on the lower side of the first and second gaskets Gl, G2 are fitted together.
- the specific structure of the maintaining means I includes a pair of bolts 66 passed through the bolt through holes 9a of the mounting flange 9 of the second fluid supply / exhaust port 2A, and a pair of bolt through holes 9a, 9a.
- the valve 2 can be brought close to the integrated panel 1 and the drawn state can be maintained. Also, if the pressure contact force of each mating seal 10 decreases due to aging, creep, etc., it can be dealt with by tightening the bolt 66 to maintain good sealing performance. Is possible.
- connection structure between the integrated panel and the fluid device according to Example 2 is shown in FIG. Panel 1 and a pump (such as a bellows pump for a cleaning device circulation line) 2 which is an example of a fluid device are connected in communication via a flange pipe 71. Since the configuration of the connecting portion itself via the inner and outer gaskets G1 and G2 is the same as that of the first embodiment, only the main reference numerals are given and the detailed description thereof is omitted.
- the collecting panel 1 has basically the same structure except that the collecting direction force of the fluid passage 4 on the discharge side is opposite to that of the collecting panel 1 according to the first embodiment.
- the connection structure between the integrated panel and the fluidic device according to the first embodiment is configured on the upper surface of the integrated panel, whereas the connection structure according to the second embodiment is configured on the side surface of the integrated panel 1.
- the fluid passages 7 and 8 for supply and discharge of the pump 2 have a structure that opens to the side surface, and the pair of fluid passages 3 and 4 in the accumulation panel 1 have a double pipe structure. Of independent type.
- the flange pipe 71 includes a flange portion 72 having the mounting flange 9 described above, and a substantially bifurcated pipe portion 73 that follows the flange portion 72.
- the pipe portion 73 has a tubular supply-side fluid passage 74. It has a supply side pipe 73A having a discharge side and a discharge side fluid passage 73B having a tubular discharge side fluid passage 75.
- the supply-side fluid passage 74 is opened as a tubular shape centering on the axis P and faces the vertical passage 3 a of the accumulation panel 1 and faces the vertical ring passage 4 a of the accumulation panel 1.
- An annular passage portion 75a that is opened in this manner is formed in a state of being continuous with the discharge-side fluid passage 75.
- the fluid passages 74 and 75 are connected and connected in communication with the in-side port 76 and the out-side port 77 of the pump 2 by means such as fusion.
- the first fluid supply / discharge of the double-pipe structure in the integrated panel 1 is achieved.
- the second fluid supply / discharge part 2A composed of a pair of in and out side ports 76, 77 arranged in parallel with the mouth part 1A, i.e., the integrated panel 1 and the pump 2, are connected to each other in the fluid passage opening structure. Although they are different from each other, they can be connected in close proximity to each other without difficulty.
- FIGS. The connection structure between the integrated panel and the fluid device according to Example 3 is shown in FIGS. This is different from Example 1 only in the maintenance means I, and it is different from the maintenance means I of the first separate structure. And explain. 5 and 6, portions corresponding to those of the first embodiment shown in FIGS. 1 to 3 are denoted by corresponding reference numerals.
- the maintaining means I according to the first separate structure is an outer peripheral portion of the first fluid supply / exhaust port portion 1A having a protruding shape that is formed on the upper surface of the integrated panel 1 and has a circular shape in plan view.
- the ring-shaped fluid passage 7 is composed of a split ring 82 that divides into two or more than three, and interferes in the direction of the axis P of the annular fluid passage 7.
- the opening 83a of the inward flange 83 formed on the valve 2 side (upper side) of the cylindrical nut 81 is set to a minimum inner diameter dimension sufficient to allow passage of the outward flange 9.
- the outer diameter of the split ring 82 is set to be slightly smaller than the inner diameter of the female thread 81 ⁇ so that it can enter the cylindrical nut 81, and the inner diameter is the circular second fluid supply / discharge rod of the valve 2. It is set to the minimum dimension that allows it to be externally fitted to the outer diameter of part 2.
- the axial length force of the thin portion of the second fluid supply / discharge portion 2A excluding the outward flange 9 is divided by the axial length of the cylindrical nut 81. It is necessary to make the value greater than the sum of the thickness of the mold ring 82. Specifically, as shown in FIG. 6 (b), the length d3 between the cylindrical nut 81 in contact with the root 6t of the valve case 6 and the outward flange 9 is a split ring. The thickness is greater than 82, d4 (d3> d4).
- the split ring 82 is slidable in the axial direction, and the width dimension of the split ring 82
- An inner peripheral surface portion 81m having a length in the axial direction along the shaft center is covered with a flat inner peripheral surface concentric with the shaft center. That is, an inner diameter portion 81a between the female thread 81 ⁇ of the cylindrical nut 81 and the inward flange 83 is formed on a flat inner peripheral surface concentric with the supply-side fluid passage 7, and an inner diameter of the inner peripheral surface portion 81m is formed. Fitting that is slightly larger than the outer diameter of the split ring 82 with a rectangular cross section!
- the outer diameter portion of the second fluid supply / exhaust port portion 2A is formed on the flat outer peripheral surface concentrically with the supply side fluid passage 7, and the outer diameter of the outer diameter portion is Percent
- the inner diameter of the mold ring 82 is formed to be substantially the same diameter.
- the operation procedure for connecting and connecting the two fluid supply / exhaust ports 1A and 2A using the maintaining means I of the first separate structure is as follows. First, as shown in FIG. 6 (a), the cylindrical flange 81 is fitted over the outer periphery of the second fluid supply / discharge part 2A of the valve 2 by passing through the outward flange 9, and the innermost back side ( Move until it touches the root 6t. Next, as shown in FIG. 6 (b), the split ring 82 is fitted between the outward flange 9 and the tip of the cylindrical nut 81 and fitted to the second fluid supply / discharge rod portion 2A.
- the first and second gaskets Gl and G2 are temporarily fitted to the end faces of either of the fluid supply / discharge parts 1A and 2A with the annular protrusions 11, 21, 31, 41 and the annular grooves 51, 61. You may make it wear through.
- the first fluid supply / discharge port portion 1A is applied to the second fluid supply / discharge port portion 2A via both gaskets Gl and G2, and in this state, the cylindrical nut 81 is slid to force tightening operation [FIG.
- (c) the connection state shown in Fig. 5 is obtained.
- FIG. 6 the integrated panel 1 and the valve 2 that are stacked one above the other are depicted lying down for convenience of drawing.
- the connection structure between the integrated panel and the fluid device according to Example 4 is shown in FIGS. This is different from the first embodiment only in the maintenance means I, and the maintenance means I of the second separate structure will be described. 7 and 8, portions corresponding to those of the first embodiment shown in FIGS. 1 to 3 are denoted by corresponding reference numerals.
- the second separate structure maintaining means I includes first and second frustoconical end IDs obtained by expanding the first and second fluid supply / discharge portions 1A and 2A so that the diameter increases toward the end face.
- a split presser ring 85 composed of a pair of half-circular arc members 84, 84 having an inner peripheral surface with a substantially rectangular cross section by the peripheral surface 84b, and a bolt that pulls the half-circular arc members 84, 84 together 86 and a nut 87 formed on one half arc member 84.
- the operation procedure for connecting and connecting the two fluid supply / exhaust ports 1A, 2A using the maintenance means I of the second separate structure is as follows. First, as shown in FIG. 8 (a), first, a preliminary coupling operation is performed in which the first and second fluid supply / discharge portions 1A and 2A are lightly connected and connected via the first and second gaskets G21 and G2. Next, the first and second frustoconical end IDs, 2D, which are pre-connected, are covered with a split-type presser ring 85 and tightened with a bolt 86. By tightening this bolt 86, both gaskets Gl and G2 are deeply fitted into the fluid supply and discharge parts 1A and 2A, and the connection connection state of the integrated panel 1 and the valve 2 is obtained as shown in FIG. 8 (c). It is done.
- FIG. 9 A connection structure between the integrated panel and the fluidic device according to Example 5 is shown in FIG. This is different from the first embodiment only in the maintenance means I, and the maintenance means I of the third separate structure will be described.
- the third different structure maintaining means I includes a first fluid supply / exhaust port 1A having a protruding shape and a circular shape in a plan view formed on the upper surface of the integrated panel 1 with a male screw In on the outer periphery.
- the material of both the ring nuts 91, 92 and the engagement ring 93 is made of, for example, a fluorine resin such as PFA or PTFE, and has a certain degree of flexibility. Therefore, the maintenance means I of the third separate structure
- the procedure for connecting and connecting the fluid supply / discharge parts 1A, 2A with each other is as follows. First and second ring nuts 91, The first and second fluids are formed in such a manner that the integrated first and second ring nuts 91 and 92 are attracted to each other through gaskets Gl and G2 and assembled. It is screwed to the supply / discharge port portions 1A and 2A to form a connection structure between the integrated panel and the fluid device. Of course, in this case, it is a condition that each male screw In, 9n is the same screw, and after screwing, each ring nut 91, 92 can be turned to tighten more tightly or to be tightened later. .
- the maintenance means I having this configuration literally has only the function of maintaining the seal connection state of the first and second fluid supply / discharge parts 1A and 2A via the gaskets Gl and G2.
- both the ring nuts 91 and 92 can rotate independently.
- the seal pressure contact force decreases due to the above or the like, it is possible to perform the retightening operation by forcibly turning one or both of the ring nuts 91 and 92.
- connection structure between the integrated panel and the fluidic device according to Example 6 is shown in FIGS.
- the connection structure between the integrated panel and the fluid device includes an integrated panel 1 in which a pair of circular fluid passages 3 and 4 are formed inside, and a valve mounted on the upper surface la thereof via a ring-shaped gasket G ( Open / close valve, stop valve, etc.) It is a single channel type to be shared. That is, a pair of connection structures are configured to be the same for supply and discharge.
- the integrated panel 1 has a panel material (or block material) 5 made of fluorocarbon resin such as PFA or PTFE, and has an up-and-down orientation that opens to the upper surface la of the panel.
- a pair of circular supply-side fluid passages 3 and 4 each having a longitudinal passage 3a and 4a and a transverse passage 3b and 4b are formed.
- the portion of the integrated panel 1 where the supply and discharge fluid passages 3 and 4 are open is referred to as a first fluid supply and discharge portion 1A.
- the cylindrical vertical passages 3a and 4a Each of which is formed in a passage having an axis P.
- first fluid supply / discharge part 1A has an annular shape centering on the axis P and protrudes upward in each of the outer diameter side portions of the fluid passages 3 and 4 that open to the upper end surface thereof.
- a lower first seal end t21 and a lower second seal end t22 having the inner and outer annular protrusions 21 are formed.
- the valve (an example of a fluid device) 2 has a valve case 6 made of fluorine resin such as PFA or PTFE and having a circular shape in the vertical direction.
- the lower end of the valve case 6 has a cylindrical supply side fluid passage 7 that is vertically disposed in a state of projecting downward from the bottom surface 6a, and a state in which the lower end of the valve case 6 is opened apart to the lateral side of the supply side fluid passage 7. It is formed in a second fluid supply / discharge rod portion 2A having a circular discharge side fluid passage 8 arranged in a vertical direction.
- each of the cylindrical supply-side fluid passages 7 and 8 is formed as a passage having an axis P. That is, at the lower end of the valve case 6, a pair of mounting flanges 9 made of fluorine resin made of PFA, PTFE or other materials having a pair of bolt insertion holes 9a are formed to protrude downward, and the fluid passages 7, 8 are formed.
- Each mounting flange 9 is formed by the pipe portion 9A and the flange portion (outward flange) 9B.
- a supply-side mounting flange 9 is formed on the upper first seal end ti l having an annular protrusion 11 protruding downward, and a discharge-side mounting flange 9 is an upper second seal end having an annular protrusion 11 protruding upward Part tl2 is formed.
- the pair of gaskets G are the same as each other, and the structure thereof will be described by taking the supply side gasket G as an example.
- the gasket G is a tubular fluid path W1 formed so as to connect the longitudinal passage 3a and the supply side fluid passage 7 which are fluid passages corresponding to the upper and lower fluid supply / discharge portions 1A, 2A on the supply side. And formed on the end surfaces of the first and second fluid supply / discharge parts 1A, 2A A pair of upper and lower annular grooves formed on the outer diameter side portion of the fluid path W1 to be fitted into the annular protrusion 11 of the upper first seal end ti l and the annular protrusion 21 of the upper second seal end tl2, respectively.
- 51, 51 and is made of a fluorine resin such as PFA or PTFE.
- the cross-sectional shape of the gasket G includes a pair of upper and lower annular grooves 51, 51, an inner peripheral wall 54 and an outer peripheral wall 55 for forming the annular grooves 51, 51, and the upper and lower annular grooves 5 1 and 51 are vertically symmetric with the same depth and width, and the inner and outer peripheral walls 54 and 55 are also left and right symmetric, and the axial centers of the first and second fluid supply / discharge parts 1A and 2A It is formed in a substantially H-shaped shape that is line symmetric (may be substantially line symmetric) with respect to both the vertical center Z along the P direction and the horizontal center line X orthogonal to the vertical center line Z.
- the upper and lower end portions of the inner peripheral wall 54 are formed on tapered inner peripheral surfaces 52a and 52a in which the upper and lower end portions of the fluid path W1, which is the inner peripheral surface 54a, are inclined outwardly in a tapered shape, and The end portions are also formed on tapered outer peripheral surfaces 53a and 53a in which upper and lower end portions of the outer peripheral surface 55a are inclined inward.
- Inner and outer peripheral wall ends 52 and 53 formed in the axial center P direction to form the annular groove 51 in the gasket G on the inner and outer diameter sides of the annular protrusion 11 are formed by the annular groove 51 and the annular protrusions 11 and 21.
- annular presser protrusions an example of an annular presser portion
- the structure related to the annular pressing projection will be described with respect to the gasket G and the upper first seal end ti l.
- the inner and outer annular presser protrusions 12 and 13 are symmetrical, and the valley protrusions 14 and 15 surrounded by these annular protrusions 11 and 15 are in a deepened shape (upper narrowed shape).
- the peripheral surface is formed into a tapered annular protrusion having a tapered outer peripheral surface 12a and a tapered inner peripheral surface 13a. That is, the upper first seal end portion til is a general term for the annular protrusion 11 and the annular presser protrusions 12 and 13 and the valley portions 14 and 15 formed on both the inside and the outside.
- the upper ends of the inner and outer peripheral walls 54, 55 of the gasket G are formed with a tapered inner peripheral surface 52a and a tapered outer peripheral surface 53a, which are in contact with the tapered outer peripheral surface 12a and the tapered inner peripheral surface 13a of the annular presser protrusions 12, 13, respectively. It has a tapered annular seal projection (example of peripheral wall end) 52, 53 that can enter into the outer wall 14 and 15, and in the joined state (see Fig.
- the annular seal protrusions 52 and 53 enter the corresponding valley portions 14 and 15, the tapered outer peripheral surface 12a of the upper first seal end ti l and the tapered inner peripheral surface 52a of the gasket G are in pressure contact, and the upper first 1
- the taper inner peripheral surface 13a of the seal end ti l and the taper outer peripheral surface 53a of the gasket G are configured to be pressed against each other.
- the upper seal portion gl l is formed at the upper end portion of the gasket G by the annular groove 51 and the inner and outer annular seal protrusions 52 and 53, and similarly, the lower seal portion gl2 is formed at the lower end portion. ing.
- the upper seal part gl l is fitted to the upper first seal end part ti l to form the fitting seal part 10
- the lower seal part g 12 is fitted to the lower second seal end part t21 to be the fitting seal part.
- the fitting structure of the fitting seal portion 10 will be described in detail with respect to the upper first seal end portion ti l and the upper seal portion gl l of the gasket G.
- the upper inner annular retainer protrusion 12 and the upper inner annular seal protrusion 52 are The taper outer peripheral surface 12a and the taper inner peripheral surface 52a are brought into pressure contact with each other at the innermost diameter side portion (see the phantom line in FIG. 12), and the fluid passing through the fluid passage W1 is in the outer taper periphery.
- the advantage is that it functions as a secondary seal part S2 that prevents entry between the surfaces 12a and 52a.
- a relationship of hl ⁇ h2 is set between the protrusion length hi of the upper annular protrusion 11 and the depth h2 of the upper annular groove 51.
- a primary seal S1 that exhibits excellent sealing performance to prevent leakage of the upper inner ring is formed, and the tapered outer peripheral surface 12a of the upper inner annular presser protrusion 12 and the tapered inner peripheral surface 52a of the upper inner annular seal protrusion 52 are always in contact with each other.
- the secondary seal portion S2 described above is formed well.
- the tip of the upper inner annular presser protrusion 12 spreads slightly toward the fluid passage W1 and is deformed, it is originally cut, so that the recess having a triangular cross section that opens widely in the middle of the fluid passage W1.
- the opening angle of the recess that is, the included angle between the inclined cut surface 12b and the taper inner peripheral surface 52a, avoids the possibility of liquid accumulation due to a sufficiently large surface tension.
- the inner and outer angles of the tip of the annular protrusion 11 are formed as a chamfered shape 11a, the press-fitting movement into the narrow annular groove 51 can be smoothly performed without inconvenience such as force.
- the outer annular presser protrusion 13 has a lower end inner peripheral portion 9b for forming a lower end portion of the valve case 6 in a state following the tapered inner peripheral surface 13a of the annular presser protrusion 13,
- the overall shape of the ring-shaped presser protrusion 12 is different.
- the lower first seal end t21 also has an upper end inner peripheral portion 5b for forming the upper end portion of the panel material 5 in a state following the tapered inner peripheral surface 23a of the annular presser protrusion 23.
- the overall shape of the inner annular presser protrusion 22 is different.
- These upper and lower inner peripheral portions 5b and 9b function as guides when the upper and lower seal portions gl l and gl2 of the gasket G are fitted to the upper and lower first seal end portions ti l and t21.
- the function of preventing the expansion and deformation of the outer peripheral wall 55 of the gasket G together with the peripheral surfaces 13a and 23a can be exhibited.
- the first or second fluid supply / discharge portion 1A When pulling out the gasket G from 2A, there is an advantage that it can be easily removed by pulling the flange If with a tool or fingers.
- the thickness of the detachable flange If is set to a value smaller than the gap between the first and second fluid supply / discharge portions 1A and 2A in the joined state.
- the opening angle of the taper peripheral surfaces 12a and 13a of the annular presser protrusions 12 and 13 is a value in the range of 50 to 70 degrees (50 ° ⁇ D ° ⁇ 70 °) and annular seal protrusion (peripheral wall end) 52, 53 taper circumferential surface 52a, 53a sharp angle E is in the range of 60-80 degrees (60 ° ⁇ D ° ⁇ 80 °).
- the tapered outer peripheral surface 12a and the tapered inner peripheral surface 52a come into contact with each other in an annular line contact state, and the seal lip effect is exhibited in the secondary seal portion S2.
- a sealing action also occurs between the taper outer peripheral surface 13a and the taper outer peripheral surface 53a at the outer diameter side end portions thereof.
- the taper angle E of the taper circumferential surfaces 52a, 53a is a tapered circumferential surface 12a on the annular projection 11 side in the annular pressing projections 12, 13 with respect to the pulling direction.
- the opening angle D of 13a (tapered outer peripheral surface 12a, tapered inner peripheral surface 13a) is set to a value that is 10 to 20 degrees, preferably 10 degrees or almost 10 degrees.
- the sharp angle E is set to 60 to 80 degrees, preferably 80 degrees or almost 80 degrees.
- the annular presser protrusions 12 and 13 have a drawing direction (axis) compared to their radial width. Direction), the strength and rigidity will be relatively improved, and while the expansion of the annular seal protrusions 52 and 53 is restricted, the self (annular retainer protrusions 12 and 13) expand and deform in the radial direction. There is an advantage that the fear can be more effectively suppressed.
- the taper peripheral surfaces 52a and 53a are formed into the annular presser protrusion 1 by being inserted into the valley portions 14 and 15 of the annular seal protrusions 52 and 53. The component force which pushes 2 and 13 in the radial direction can be reduced, and from this point as well, the radial deformation of the annular presser protrusions 12 and 13 can be suppressed.
- the maintaining means I is configured such that the first fluid supply / exhaust port 1A of the collection panel 1 and the second fluid supply / discharge port 2A of the valve 2 are mutually connected via a gasket G.
- the upper first seal end ti l of the first fluid supply / discharge part 1 A, the upper seal part gl l of the gasket G, and the second fluid supply / discharge port 2 The lower first seal end portion 121 of A and the lower seal portion g12 of the gasket G are fitted together so as to maintain a joined state in which each fitting seal portion 10 is formed.
- annular protrusion 11 of the second fluid supply / exhaust male part 2A and the annular groove 51 on the upper side of the gasket G, and the annular protrusion 21 of the first fluid supply / exhaust male port 1A and the annular lower part of the gasket G The grooves 51 and are respectively fitted.
- the specific structure of the maintaining means I includes a pair of bolts 66 passed through the bolt passage holes 9a of the flange portion 9B of the second fluid supply / discharge portion 2A, and a pair of bolt passage holes 9a, 9a.
- it is composed of nut parts 67, 67 formed on the first fluid supply / discharge part 1A (on the panel material 5), and by tightening the bolt 6 6 by screwing it onto the nut part 67, It is configured as a maintenance means I with a pulling function that can pull the valve 2 to the integrated panel 1 and maintain the pulling state.
- the pressure contact force of each mating seal 10 decreases due to changes over time, creep, etc., it can be dealt with by tightening bolts 66 to maintain good sealing performance. Is possible.
- FIG. 7 A connection structure between the integrated panel and the fluidic device according to Example 7 is shown in FIG.
- This is a structure in which the filter 2 which is an example of the fluid device and the integrated panel 1 are connected and connected, and the connection structure itself is the same as that according to the sixth embodiment shown in FIGS. Accordingly, the same parts are denoted by the same reference numerals, and the description thereof is omitted.
- the filter 2 includes a main body case 2K, a lower case 2B, and a filter body 2C.
- the lower case 2B has a fluid passage 7 on the supply side, a fluid passage 8 on the discharge side, and these fluid passages 7, 8.
- a pair of mounting flanges 9 and 9 are formed so as to project sideways in the state. These mounting flanges 9 and 9 and the integrated panel 1 are connected and connected via the gasket G.
- connection structure between the integrated panel and the fluid device according to the eighth embodiment is a connection structure between the integrated panel 1 and a regulator 2 that is an example of the fluid device.
- the reguilleter 2 has a casing 2C that also has an upper case, an intermediate case, and a lower case force.
- the outer periphery of the upper case and the intermediate case are sandwiched between the upper case and the intermediate case (not shown), the intermediate case, It consists of a valve body (not shown) whose outer peripheral part is sandwiched between the lower case and a return panel (not shown) accommodated in the lower case.
- the casing 2C is equipped with a pair of mounting flanges 9 and 9 which are formed to project laterally, and the regulator 2 is attached to the upper surface la of the integrated panel 1 using these mounting flanges 9 and 9. Are connected and connected via gasket G.
- the connection structure between the mounting flange 9 and the upper surface la of the integrated panel 1 through the gasket G is the same as that in the sixth embodiment shown in FIGS. 10 to 12, and the detailed description thereof is omitted.
- FIGS. 15 and 16 portions corresponding to those of the sixth embodiment shown in FIGS. 10 to 12 are denoted by corresponding reference numerals.
- the maintaining means I having a different structure is provided with a male on the outer peripheral portion of the protruding first fluid supply / discharge rod portion 1A having a circular shape in plan view formed on the upper surface of the integrated panel 1.
- An annular ring 81 is formed between a cylindrical nut 81 having a female thread 8 In formed on the male thread In and threaded on the male thread In, and an outward flange 9 formed at the lower end of the valve case 6 of the valve 2. It consists of a split ring 82 that divides into two or more than three that interfere in the axial direction P of the fluid passage 7.
- It is configured as maintenance means I with an attraction function that can be attracted to and can maintain the attraction state.
- the opening 83a of the inward flange 83 formed on the valve 2 side (upper side) of the cylindrical nut 81 is set to a minimum inner diameter dimension sufficient to allow the outward flange 9 to pass therethrough.
- the outer diameter of the split ring 82 is larger than the inner diameter of the female thread 81 ⁇ so that it can enter the cylindrical nut 81 freely.
- the dimension is set to be slightly smaller, and the inner diameter is set to a minimum dimension that can be fitted onto the outer diameter part of the circular second fluid supply / discharge part 2 A of the valve 2.
- the axial length force of the thin portion of the second fluid supply / discharge portion 2A excluding the outward flange 9 is divided by the axial length of the cylindrical nut 81. It is necessary to make the value greater than the sum of the thickness of the mold ring 82.
- the length d3 between the cylindrical nut 81 in contact with the root 6t of the valve case 6 and the outward flange 9 is a split ring. The thickness is greater than 82, d4 (d3> d4).
- the split ring 82 is slidable in the axial direction, and the width dimension of the split ring 82
- An inner peripheral surface portion 81m having a length in the axial direction along the shaft center is covered with a flat inner peripheral surface concentric with the shaft center. That is, an inner diameter portion 81a between the female thread 81 ⁇ of the cylindrical nut 81 and the inward flange 83 is formed on a flat inner peripheral surface concentric with the supply-side fluid passage 7, and an inner diameter of the inner peripheral surface portion 81m is formed.
- the fitting is slightly larger than the outer diameter of the split ring 82 with a rectangular cross section!
- the outer diameter portion of the second fluid supply / exhaust port portion 2A is formed on the flat outer peripheral surface concentrically with the supply side fluid passage 7, and the outer diameter of the outer diameter portion is
- the inner diameter of the split ring 82 is formed to be substantially the same diameter.
- the operation procedure for connecting and connecting the fluid supply and discharge parts 1A and 2A using the maintenance means I of the first separate structure is as follows. First, as shown in FIG. 16 (a), the tubular flange 81 is fitted over the outer periphery of the second fluid supply / discharge part 2A of the valve 2 by passing through the outward flange 9, and the innermost back side ( Move until it touches the root 6t. Next, as shown in FIG. 16 (b), the split ring 82 is fitted between the outward flange 9 and the tip of the cylindrical nut 81 and fitted to the second fluid supply / discharge rod portion 2A.
- the gasket G is attached to the end face of one of the fluid supply / discharge parts 1A, 2A via a temporary fitting between the annular protrusions 11, 21, 31, 41 and the annular grooves 51, 61. It may be left.
- the first fluid supply / discharge part 1A is connected to the second fluid via the gasket G.
- the connection state shown in FIG. 15 is obtained by applying a force S to the supply / discharge part 2A and sliding the cylindrical nut 81 in that state to perform the tightening operation [see FIG. 16 (c)].
- FIG. 16 the integrated panel 1 and the valve 2 that are stacked one above the other are depicted lying down for convenience of drawing.
- the connection structure between the integrated panel and the fluidic device according to Example 10 is shown in FIGS. This is different from the one in Example 6 only in the maintenance means I, and the maintenance means I of the second separate structure will be described.
- FIGS. 17 and 18 portions corresponding to those in the sixth embodiment shown in FIGS. 10 to 12 are denoted by corresponding reference numerals.
- the second separate structure maintaining means I includes the first and second truncated cones formed by expanding the first and second fluid supply / exhaust ports 1A and 2A so that the diameter increases toward the end face.
- a split presser ring 85 consisting of a pair of half arc members 84, 84 having an inner circumferential surface having a substantially square cross section by a second tapered inner circumferential surface 84b abutting against the outer circumferential surface 2d, and a half arc portion And a nut 86 formed on one half arc member 84, and a bolt 86 for pulling the members 84 and 84 together.
- the other half By tightening the bolt 86 and nut 87 passed through the insertion hole of the arc member 84 in the 84h direction, the half arc members 84 and 84 pivoted at the fulcrum Q in a hinge shape are drawn together.
- the fluid supply and discharge portions 1A and 2A are attracted to each other by the force generated by the contact between the tapered surfaces.
- the split mold retaining ring 85 is preferably formed of a fluorine resin material force, but may be formed of other material force such as an aluminum alloy.
- the operation procedure for connecting and connecting the fluid supply and discharge parts 1A and 2A using the maintenance means I of the second separate structure is as follows. First, as shown in FIG. 18 (a), a preliminary coupling operation is performed in which the first and second fluid supply / discharge rod portions 1A and 2A are lightly connected and connected via the gasket G. Next, as shown in FIG. 18 (b), the first and second truncated frustoconical end IDs, 2D, which are pre-connected, are covered with a split mold retainer ring 85 and tightened with bolts 86. Tighten this bolt 86 As a result, the gasket G is fitted deeply into the fluid supply / discharge rod portions 1A and 2A, and the connected state of the integrated panel 1 and the valve 2 is obtained as shown in FIG. 18 (c).
- FIG. 19 A connection structure between the integrated panel and the fluidic device according to Example 11 is shown in FIG. This is different from Example 6 only in the maintenance means I, and the maintenance means I of the third separate structure will be described. Note that, in FIG. 19, portions corresponding to those of the sixth embodiment illustrated in FIGS. 10 to 12 are denoted by corresponding reference numerals.
- the third separate structure maintaining means I includes a protruding first fluid supply / exhaust port portion 1A having a circular shape in a plan view formed on the upper surface of the integrated panel 1 with a male screw In on the outer periphery.
- the flange portion 9 formed at the lower end of the valve case 6 with a male screw 9n on the outer peripheral portion, and a female screw that can be screwed to these male screws In, 9n.
- First and second ring nuts 91 and 92 having screws 9 In and 92 ⁇ , and an engagement ring 93 having a substantially U-shaped cross section that can be fitted into outer circumferential grooves 91m and 92m of these ring nuts 91 and 92 It is composed.
- Both the ring nuts 91, 92 and the engagement ring 93 are made of fluorine resin such as PFA or PTFE, and have a certain degree of flexibility. Therefore, the procedure for connecting and connecting the fluid supply / discharge rod parts 1A, 2A using the third different structure maintaining means I is carried out by engaging the engagement rings 93 with the ring nuts 91, 92 in advance. First and second ring nuts 91 and 92 are formed, and the integrated first and second ring nuts 91 and 92 are drawn together through gasket G to be assembled. The first and second fluid supply / discharge portions 1A and 2A are screwed to form a connection structure between the integrated panel and the fluid device. Of course, in this case, it is a condition that the male screws In and 9n are the same as each other. After the screwing, the ring nuts 9 and 92 can be turned to be tightened more strongly or can be tightened later. .
- the maintenance means I having this configuration literally has only the function of maintaining the seal connection state through the gasket G of the first and second fluid supply / discharge parts 1A, 2A.
- both the ring nuts 91 and 92 can be independently rotated, and this is effective for aging and creep. Therefore, when the seal pressure contact force is reduced, it is possible to perform a retightening operation by forcibly turning one or both of the ring nuts 91 and 92.
- the fourth separate structure maintaining means I includes a protruding first fluid supply having a circular shape in a plan view formed on the upper surface of the integrated panel 1 with a male screw In on the outer periphery.
- the flange portion 9 formed at the lower end of the nozzle case 6 with the male screw 9n on the outer periphery of the outlet 1A, the second fluid supply / exhaust port 2A, and both male screws In, 9n It comprises a cylindrical nut 101 having a female screw 101 ⁇ that can be screwed.
- the cylindrical nut 101 is formed with a round inner peripheral portion 101a having a diameter larger than that of the male screws In, 9n between the female screw 101 ⁇ on the distal end side and the inward flange 102 on the proximal end side,
- the inward flange 102 is formed to have an inner diameter that interferes with the flange portion 9 in the axis P direction.
- the male screw 9n of the fluid device 2 is accommodated in the inner peripheral part 101a of the winding device 1, and only the male screw In and the female screw 101 ⁇ of the integrated panel 1 are screwed together.
- the first and second fluid supply / discharge rod portions 1A, 2A are maintained in a state of being attracted to each other.
- the female screw 101 ⁇ of the cylindrical nut 101 is screwed into the male screw 9n of the flange portion 9 of the fluid device 2 and tightened.
- the female screw 101 ⁇ is screwed into the male screw In of the integrated panel 1 via the gasket G and tightened.
- the cylindrical nut 101 runs idle relative to the male screw 9n of the flange portion 9, only the integrated panel 1 is tightened.
- the integrated panel 1 and the fluid device 2 are attracted, and the attracting state in which the fluid passages 3 and 7 are connected in a sealed state by the gasket G is maintained. It is composed of maintenance means I with an offset function.
- FIG. 21 shows a connection structure between the integrated panel and the fluid device according to Example 13. This is different from Example 6 only in the maintenance means I, and the maintenance means I of the fifth separate structure will be described.
- the fifth different structure maintaining means I is a compromise between the first different structure maintaining means I shown in FIG. 15 and the fourth different structure maintaining means I shown in FIG. As shown in FIG.
- the first fluid supply / exhaust port portion 1A having a protruding shape, which is circular in a plan view, is formed on the upper surface of the integrated panel 1 with a male screw In on the outer periphery, and the second In the fluid supply / discharge port portion 2A, the flange portion 9 formed at the lower end portion of the valve case 6 with the male screw 9n on the outer peripheral portion, and the female screw 11 In which can be screwed to both the male screws In and 9n
- a cylindrical nut 111 having a split ring 112 and a split ring 112 are provided.
- the cylindrical nut 111 is formed with an inner peripheral portion 11 la having a diameter larger than that of the male screws In and 9n between the female screw ll ln on the distal end side and the inward flange 113 on the proximal end side.
- the inward flange 113 is formed to have an inner diameter portion 113a that does not interfere with the flange portion 9 in the axial center P direction.
- the split ring 112 is like a circular ring divided into three or more pieces (eg, the force of three fan-shaped members of less than 120 degrees), and the inward flange 113 and the female screw 11 In are passed through.
- the assembly using the maintenance means I according to the fifth separate structure is as follows. That is, the split ring 112 is set in advance in the inner peripheral portion 11 la according to the above-described procedure, and the subsequent steps are the same as in the case of the maintaining means I having the fourth separate structure. Therefore, further explanation of the assembly procedure is omitted.
- the second gasket G2 on the outer diameter side may have a structure in which the upper and lower ends of the outer peripheral wall 63 are shorter than the inner peripheral wall 53 and are simply cut horizontally, although illustration is omitted.
- the outer peripheral wall 63 of the outermost second gasket G2 may not have a sealing function.
- Gaskets Gl and G2 in Examples 1 to 5 have symmetrical shapes in the vertical and horizontal directions.For example, the inner and outer peripheral walls have different lengths and thicknesses, and those that are asymmetric in the vertical direction are not limited to the illustrated shapes. .
- the “fluid device” in the present invention means a valve, pump, accumulator, fluid storage container, heat exchanger, regulator, pressure gauge, flow meter, heater, flange piping, etc. It is defined as a general term for things. Furthermore, as a means for maintaining the attracting function, there is a turnbuckle type (eg, in the structure shown in FIGS. 9 and 19, one of the male screws In, 9n is used as a reverse screw, and the turn over both male screws In, 9n is used. A structure in which a buckle nut is screwed is also possible.
- annular retainer protrusions 33 and 43 shall be read as the annular retainer wall portions 33 and 43, and these annular retainer protrusions 12, 13, 22, 23, 32 and 42 and the annular retainer wall portions 33 and 43 are named generically. And defined as “annular presser part”.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Gasket Seals (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/919,651 US20100013213A1 (en) | 2005-05-02 | 2006-04-28 | Structure for connection between integrated panel and fluid device |
EP06732460A EP1881253A1 (en) | 2005-05-02 | 2006-04-28 | Structure for connection between integrated panel and fluid device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005134237A JP4210669B2 (ja) | 2005-05-02 | 2005-05-02 | 集積パネルと流体デバイスとの接続構造 |
JP2005134236A JP4210668B2 (ja) | 2005-05-02 | 2005-05-02 | 集積パネルと流体デバイスとの接続構造 |
JP2005-134237 | 2005-05-02 | ||
JP2005-134236 | 2005-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006118238A1 true WO2006118238A1 (ja) | 2006-11-09 |
Family
ID=37308033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/308957 WO2006118238A1 (ja) | 2005-05-02 | 2006-04-28 | 集積パネルと流体デバイスとの接続構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100013213A1 (ja) |
EP (1) | EP1881253A1 (ja) |
KR (1) | KR20070106576A (ja) |
TW (1) | TW200702582A (ja) |
WO (1) | WO2006118238A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104797874B (zh) * | 2012-11-21 | 2017-10-27 | 美国国民油井华高公司 | 密封系统 |
US10495230B1 (en) * | 2014-04-30 | 2019-12-03 | Chandler Systems, Inc. | Piston valve with annular passages |
US10948091B1 (en) | 2018-04-24 | 2021-03-16 | Chandler Systems, Inc. | Piston valve with annular passages |
DE112019000943T5 (de) * | 2018-02-23 | 2020-11-19 | Nippon Pillar Packing Co., Ltd. | Struktur zur Anbringung einer Dichtung an einem Block |
JP7017990B2 (ja) * | 2018-06-21 | 2022-02-09 | 日本ピラー工業株式会社 | 流体デバイスへのガスケットの装着構造 |
CN112639348B (zh) | 2018-08-30 | 2023-04-25 | 日本皮拉工业株式会社 | 流路接头构造 |
WO2023096851A2 (en) * | 2021-11-24 | 2023-06-01 | Ichor Systems, Inc. | Fluid delivery system |
CN114439941B (zh) * | 2021-12-29 | 2024-04-16 | 东方电气集团东方汽轮机有限公司 | 一种法兰对接面的密封结构及其密封方法 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS509605Y1 (ja) * | 1965-11-22 | 1975-03-25 | ||
JPS5068908U (ja) * | 1973-10-25 | 1975-06-19 | ||
JPS5173625A (ja) * | 1974-11-26 | 1976-06-25 | Hooku Inc | Kantsugite |
JPS5812786U (ja) * | 1981-07-20 | 1983-01-26 | 日立電線株式会社 | フランジの結合金具 |
JPS6436791U (ja) * | 1987-08-31 | 1989-03-06 | ||
JPH0579126U (ja) * | 1992-03-31 | 1993-10-26 | 株式会社土屋製作所 | 弾性パッキンを有するシール装置 |
JPH06174158A (ja) * | 1992-12-14 | 1994-06-24 | Mitsubishi Motors Corp | 気体流路の結合部構造 |
JPH07504481A (ja) * | 1992-03-12 | 1995-05-18 | ベクター・インターナショナルリミテッド | シールリング及びジョイント |
JPH10169859A (ja) | 1996-12-03 | 1998-06-26 | Benkan Corp | 集積化ガスパネルの制御機器取付用シールガスケット |
JP2001082609A (ja) | 1999-09-09 | 2001-03-30 | Motoyama Eng Works Ltd | シールガスケット |
JP2004315051A (ja) * | 2003-04-17 | 2004-11-11 | Onda Seisakusho:Kk | 合成樹脂製タンクの配管接続構造 |
JP2004316667A (ja) * | 2003-04-10 | 2004-11-11 | Asahi Organic Chem Ind Co Ltd | 配管部材の接続構造 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2605045A (en) * | 1951-06-20 | 1952-07-29 | Laval Separator Co De | Sealing arrangement for closed centrifugal separators |
DE1525925A1 (de) * | 1966-09-16 | 1970-01-22 | Vickers Zimmer Ag | Flanschverbindung,insbesondere fuer Doppelrohrleitungen |
FR2342454A1 (fr) * | 1976-02-25 | 1977-09-23 | Schulz Wilhelm | Bride pour canalisations chauffees ou refroidies par chemisage de fluide |
JPS63243585A (ja) * | 1986-11-18 | 1988-10-11 | 株式会社 リガルジヨイント | 多重パイプ用継手 |
US4848730A (en) * | 1988-06-29 | 1989-07-18 | Mueller Co. | Structure for sealing and affixing a cover on a valve body and method of manufacture |
US5088774A (en) * | 1990-05-07 | 1992-02-18 | Tylan General, Inc. | Coupling for interconnection of coaxial tubing |
US5628517A (en) * | 1993-06-01 | 1997-05-13 | Florida Atlantic University | Contracting/expanding self-sealing cryogenic tube seals |
-
2006
- 2006-04-11 TW TW095112855A patent/TW200702582A/zh unknown
- 2006-04-28 US US11/919,651 patent/US20100013213A1/en not_active Abandoned
- 2006-04-28 WO PCT/JP2006/308957 patent/WO2006118238A1/ja active Application Filing
- 2006-04-28 EP EP06732460A patent/EP1881253A1/en not_active Withdrawn
- 2006-04-28 KR KR1020077021593A patent/KR20070106576A/ko not_active Application Discontinuation
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS509605Y1 (ja) * | 1965-11-22 | 1975-03-25 | ||
JPS5068908U (ja) * | 1973-10-25 | 1975-06-19 | ||
JPS5173625A (ja) * | 1974-11-26 | 1976-06-25 | Hooku Inc | Kantsugite |
JPS5812786U (ja) * | 1981-07-20 | 1983-01-26 | 日立電線株式会社 | フランジの結合金具 |
JPS6436791U (ja) * | 1987-08-31 | 1989-03-06 | ||
JPH07504481A (ja) * | 1992-03-12 | 1995-05-18 | ベクター・インターナショナルリミテッド | シールリング及びジョイント |
JPH0579126U (ja) * | 1992-03-31 | 1993-10-26 | 株式会社土屋製作所 | 弾性パッキンを有するシール装置 |
JPH06174158A (ja) * | 1992-12-14 | 1994-06-24 | Mitsubishi Motors Corp | 気体流路の結合部構造 |
JPH10169859A (ja) | 1996-12-03 | 1998-06-26 | Benkan Corp | 集積化ガスパネルの制御機器取付用シールガスケット |
JP2001082609A (ja) | 1999-09-09 | 2001-03-30 | Motoyama Eng Works Ltd | シールガスケット |
JP2004316667A (ja) * | 2003-04-10 | 2004-11-11 | Asahi Organic Chem Ind Co Ltd | 配管部材の接続構造 |
JP2004315051A (ja) * | 2003-04-17 | 2004-11-11 | Onda Seisakusho:Kk | 合成樹脂製タンクの配管接続構造 |
Also Published As
Publication number | Publication date |
---|---|
KR20070106576A (ko) | 2007-11-01 |
TW200702582A (en) | 2007-01-16 |
US20100013213A1 (en) | 2010-01-21 |
EP1881253A1 (en) | 2008-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006033299A1 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4324575B2 (ja) | フランジ配管どうしの接続構造 | |
WO2006118238A1 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4445918B2 (ja) | 流体用ガスケット | |
WO2007007508A1 (ja) | 集積パネルと流体デバイスとの接続構造 | |
WO2007007507A1 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4324576B2 (ja) | 流体機器どうしの接続構造 | |
JP4465335B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4268913B2 (ja) | 流体機器どうしの接続構造 | |
JP4210669B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4512526B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4210668B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4257319B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4465254B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4644477B2 (ja) | 流体用ガスケット | |
JP4048193B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4210643B2 (ja) | 流体用ガスケット | |
JP4848467B2 (ja) | フランジ配管と流体機器との接続構造 | |
JP4512528B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4411304B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4210670B2 (ja) | 流体用ガスケット | |
JP4257320B2 (ja) | 集積パネルと流体デバイスとの接続構造 | |
JP4268914B2 (ja) | 流体機器どうしの接続構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680015215.4 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020077021593 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11919651 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006732460 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2006732460 Country of ref document: EP |