WO2016194146A1 - 容器バルブ - Google Patents
容器バルブ Download PDFInfo
- Publication number
- WO2016194146A1 WO2016194146A1 PCT/JP2015/065925 JP2015065925W WO2016194146A1 WO 2016194146 A1 WO2016194146 A1 WO 2016194146A1 JP 2015065925 W JP2015065925 W JP 2015065925W WO 2016194146 A1 WO2016194146 A1 WO 2016194146A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- flow path
- fluid
- container
- conduction
- Prior art date
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Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/304—Shut-off valves with additional means
- F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
- G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
- G05D16/106—Sleeve-like sensing elements; Sensing elements surrounded by the flow path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
- F17C2227/048—Methods for emptying or filling by maintaining residual pressure
Definitions
- the present invention relates to a container valve having a conduction direction regulating valve mechanism such as a so-called residual pressure holding valve mechanism that can leave a gas of a predetermined pressure in a storage container, for example.
- a so-called residual pressure holding valve mechanism that can leave a gas at a predetermined pressure in a storage container Unlike the on-off valve, a conduction direction regulating valve mechanism that regulates the conduction direction of the fluid to be conducted may be provided (see Patent Document 1).
- an object of the present invention is to provide a container valve that can reliably switch between sealing and discharging of a fluid and can prevent generation of a fluid conduction sound when the fluid is discharged.
- the present invention includes a container mounting portion to which a valve body can be attached to a storage container that allows fluid storage, a fluid inlet / outlet portion that allows the fluid to flow in and out of the valve body, and the fluid inlet / outlet portion from the container mounting portion.
- a container valve having both ends opened and a passage allowing the passage of the fluid, and an opening / closing valve that switches between opening and closing at an intermediate portion of the passage, the passage passing through the passage
- a conduction direction regulating valve mechanism that prevents conduction of the fluid that conducts to an unintended direction is mounted in a regulation valve mounting space formed in the flow path, and the conduction direction regulation valve mechanism is installed in the regulation valve mounting space.
- a conduction direction regulating valve that is disposed so as to be movable back and forth between a valve closing position and a valve opening position, and that moves backward toward the valve opening position by the pressure of the fluid that conducts through the flow path, and the conduction direction regulation Urging means for urging the valve in the forward direction from the valve opening position toward the valve closing position, a tip contact portion disposed at the tip of the conduction direction regulating valve located in the valve closing position, and the forward / backward movement
- the sealing means is held while at least exposing a sealing means having elasticity for abutting in the direction and sealing, and a contact permission portion allowing the contact of the tip contact portion in the sealing means.
- a sealing means holding portion, and the sealing means holding portion is provided in the valve body.
- the fluid can be a gas, a liquid, or a gel.
- the conduction direction regulating valve mechanism is, for example, a valve mechanism having a valve main body that is disposed so as to advance and retreat between a valve closing position and a valve opening position in order to regulate the conduction direction of a residual pressure holding valve mechanism, a check valve mechanism, or the like.
- the sealing means may be a means having sealing properties and elasticity such as an O-ring, rubber packing, and metal packing.
- the above-mentioned sealing means holding part is provided in the valve body as follows: a sealing means holding part constituted by a separate part fixed to the valve body, or a sealing means holding part constituted integrally with a part of the valve body It can be. That is, since the sealing means holding portion is provided directly or indirectly on the valve body on the fixed side with respect to the movable conduction direction regulating valve, the sealing means is assembled to the valve body on the fixed side. Become.
- a container mounting portion to which a valve body is attached to a storage container that allows fluid storage a fluid inlet / outlet portion that allows the fluid to flow in and out of the valve body, and the fluid inlet / outlet portion from the container mounting portion.
- a container valve having both ends opened and a passage allowing the passage of the fluid, and an opening / closing valve that switches between opening and closing at an intermediate portion of the passage, the passage passing through the passage
- a conduction direction regulating valve mechanism that prevents conduction of the fluid that conducts to an unintended direction is mounted in a regulation valve mounting space formed in the flow path, and the conduction direction regulation valve mechanism is installed in the regulation valve mounting space.
- the conduction direction regulating valve is disposed so as to freely advance and retract between the valve closing position and the valve opening position, and is retracted toward the valve opening position by the pressure of the fluid that conducts the flow path.
- Urging means for urging in the forward direction from the valve opening position toward the valve closing position; a tip contact portion disposed at the tip of the conduction direction regulating valve located at the valve closing position; and the forward / backward direction And a sealing means holding section for holding the sealing means, and the fluid sealing is performed by switching the on-off valve and the conduction direction regulating valve mechanism. Stop and release can be switched reliably.
- the conduction sound due to fluid conduction is caused by the resonance of the sealing means provided in the valve body at the valve opening position due to vibration caused by fluid conduction or from the predetermined position by blowdown.
- the valve body is provided with the sealing means holding portion for holding the sealing means while exposing at least the contact allowable portion that allows the tip contact portion to contact, that is, on the fixed side. Since the sealing means is assembled to the valve body, it is possible to prevent the sealing means held by the sealing means holding portion from vibrating and resonating with the fluid that is conducted, or to be removed by blowdown. Can be prevented.
- the sealing means is constituted by an elastic ring body having a ring shape having elasticity, and the sealing means holding portion is formed on the inner side of the ring shape in the cross-sectional shape of the elastic ring body and
- the outer diameter, the opposite side to the side facing the tip contact portion, and the outside diameter on the side facing the tip contact portion can be regulated.
- the elastic ring body can be a so-called O-ring, a non-circular ring such as an elliptical cross-section, or a ring with a lip.
- the sealing means holding part since the outer diameter on the side facing the tip contact portion is regulated, the sealing means held by the sealing means holding portion vibrates and resonates due to the conducting fluid, or comes off by blowdown. This can be prevented, and the occurrence of fluid conduction noise can be more reliably prevented.
- a pressing unit that presses the sealing unit held by the sealing unit holding unit in a contact direction in which the tip contact unit contacts the contact allowable unit.
- the sealing means held by the sealing means holding portion is pressed by the pressing means in the contact direction in which the tip contact portion contacts the contact allowable portion, that is, an elastic sealing member. Since the prestress is applied to the stopping means by the pressing force of the pressing means, even if a force in the direction opposite to the pressing direction by the pressing means is applied by fluid conduction, the sealing fluid is sealed by the conducting fluid. It is possible to prevent the sealing means held by the stop means holding part from vibrating and resonating or coming off due to blowdown, and it is possible to more reliably prevent the occurrence of fluid conduction noise.
- the flow path includes a primary-side flow path from the container mounting portion to the valve chamber in which the on-off valve is disposed, and a secondary-side flow path from the valve chamber to the fluid inlet / outlet portion.
- the restriction valve mounting space is provided in the secondary side flow path, and the sealing means holding part for holding the sealing member is configured to provide the secondary side flow path through the restriction valve mounting space. It can arrange
- the fluid conduction direction is regulated by the conduction direction regulating valve mechanism mounted in the regulation valve mounting space in a state where fluid conduction to the secondary side flow path is permitted by opening the on-off valve.
- the conduction direction regulating valve mechanism mounted in the regulation valve mounting space in a state where fluid conduction to the secondary side flow path is permitted by opening the on-off valve.
- the conduction direction regulating valve mechanism having the above-described configuration, it is possible to more reliably prevent the generation of conduction noise due to fluid conduction.
- the urging means may be configured such that the conduction direction regulating valve is against a predetermined pressure of the remaining fluid that is left in the storage container when the fluid is discharged through the flow path.
- the spring can be moved to the valve closing position.
- a safety valve mechanism and a container valve capable of safely releasing an overpressure even when a fluid having an overpressure exceeding a predetermined pressure is conducted.
- Sectional drawing of a container valve Sectional drawing of the residual pressure holding valve mechanism part in a container valve.
- the expanded sectional view of a residual pressure holding valve mechanism part The disassembled perspective view of a residual pressure holding valve mechanism part.
- Explanatory drawing of a residual pressure holding valve mechanism part The expanded sectional view of the residual pressure holding valve mechanism part of another embodiment. Sectional drawing of another implementation container valve.
- FIGS. 1 is a sectional view of the container valve 1
- FIG. 2 is a sectional view of the residual pressure holding valve mechanism 100 in the container valve 1
- FIG. 3 is an enlarged sectional view of the residual pressure holding valve mechanism 100
- 4 shows an exploded perspective view of the residual pressure holding valve mechanism 100
- FIG. 5 shows an explanatory view of the residual pressure holding valve mechanism 100.
- FIG. 5A shows a cross-sectional view of the residual pressure holding valve mechanism 100 with the valve body 120 in the valve closing position
- FIG. 5B shows the residual pressure holding with the valve body 120 in the valve opening position.
- a sectional view of the valve mechanism 100 is shown.
- the container valve 1 is a packing-type container valve that is attached to a cylinder container (not shown) and restricts the conduction of the gas G for supplying and filling the gas G.
- a cylinder mounting part 32 that is screwed onto a mounting part (not shown) of the upper part of the cylinder container, an outlet 40 that protrudes laterally in the vicinity of the middle stage of the housing 31, and the housing 31 And a shut-off valve mechanism 50 mounted on the upper part.
- an O-ring is provided at an appropriate portion in the facing portion of each component in the closing valve mechanism 50 or in the facing portion of the closing valve mechanism 50 and the housing 31.
- O-ring is provided at an appropriate portion in the facing portion of each component in the closing valve mechanism 50 or in the facing portion of the closing valve mechanism 50 and the housing 31.
- a closing valve mounting recess 61 that allows the mounting of the closing valve mechanism 50 in the upper portion, a primary flow path 62 that communicates to the lower end of the closing valve mounting recess 61 and the lower end of the cylinder mounting portion 32, and the closing valve mounting
- a secondary-side channel 63 that communicates from the lower end of the recess 61 to the tip of the outlet 40 is provided.
- the shut-off valve mounting recess 61 includes a working chamber 61a that is a substantially cylindrical recess that is open at the top, and a shut-off valve chamber 61b having a small diameter around the working chamber 61a.
- the upper end of the primary flow path 62 communicates with the bottom surface of the shut-off valve chamber 61b, an upper end opening 62a is formed, and an opening valve seat 62b that protrudes upward along the outer edge of the upper end opening 62a is formed.
- a flow path 60 that communicates from the lower end of the cylinder mounting portion 32 to the tip of the outlet 40 is formed by the closing valve chamber 61 b, the primary side flow path 62, and the secondary side flow path 63.
- the outlet-side secondary-side flow path 400 and the outlet 40 that are formed inside the outlet 40 and constitute a part of the secondary-side flow path 63 will be described later together with the residual pressure holding valve mechanism 100.
- the closing valve mechanism 50 mounted in the closing valve mounting recess 61 includes a rotary handle 51, a ground nut 52, a spindle 53, an intermediate transmission 54, and a closing member 55 mounted on the bottom surface of the intermediate transmission 54. ing.
- the rotary handle 51 is formed in a substantially circular cloud shape in plan view having a corrugated outer periphery protruding at eight places, and includes a fitting portion 51 a that allows fitting of a fitted portion 53 a on the upper portion of the spindle 53.
- the ground nut 52 has a hollow, generally cylindrical shape constituted by a head nut portion 52a and a male screw portion 52b that is screwed with a female screw formed on the inner surface of the working chamber 61a of the closing valve mounting recess 61.
- the spindle 53 includes a fitted portion 53a that fits into the fitting portion 51a of the rotary handle 51 at the upper portion, and a fitting recessed portion 53b that fits into the spindle fitting recessed portion 54a of the intermediate transmission tool 54 at the lower portion. .
- the intermediate transmission 54 has a substantially cylindrical shape, and includes a spindle fitting recess 54 a that allows fitting of the fitting recess 53 b of the spindle 53 at the upper end, and a closing member fitting recess 54 b that allows fitting of the closing member 55.
- the closing member 55 is an elastic member having a circular shape in a plan view that fits in the closing member fitting recess 54b of the intermediate transmission 54, and is configured so that the opening valve seat 62b can bite in the closed state.
- the closing valve mechanism 50 including the rotary handle 51, the ground nut 52, the spindle 53, the intermediate transmission tool 54, and the closing member 55 fits the closing member 55 into the closing member fitting recess 54 b of the intermediate transmission tool 54.
- the fitting recess 53b of the spindle 53 is fitted into the spindle fitting recess 54a of the intermediate transmission 54
- the ground nut 52 is mounted on the spindle 53
- the male threaded portion 52b of the ground nut 52 and the shutoff valve are mounted. It is threadedly engaged with the female screw of the recess 61 and mounted in the stop valve mounting recess 61.
- the fitting portion 51a of the rotary handle 51 is fitted into the fitted portion 53a of the spindle 53, and the assembly of the closing valve mechanism 50 is completed.
- the closing valve mechanism 50 configured in this manner presses the intermediate transmission tool 54 downward via the spindle 53 by screwing the rotary handle 51 in the tightening direction. At this time, the opening valve seat 62b formed around the upper end opening 62a bites into the closing member 55 fitted in the closing member fitting recess 54b of the intermediate transmission 54, and the upper end opening 62a is sealed by the closing member 55. This state is referred to as a sealed state.
- outlet side secondary channel 400 formed in the outlet 40 and the outlet 40 and constituting a part of the secondary side channel 63 of the channel 60 will be described with reference to FIG.
- the outlet 40 is a substantially horizontal columnar shape having a connection permitting portion 41 that allows connection of a filling jig (not shown) or an instrument that uses the gas G, and the outlet side secondary flow path 400 that penetrates in the axial direction. Formed inside.
- the secondary flow path 63 formed in the housing 31 is referred to as the in-housing secondary flow path 64, and the secondary flow path 63 formed in the outlet 40 is defined as the secondary in the outlet.
- the side flow path 400 is configured such that the secondary flow path 63 in the housing and the secondary flow path 400 in the outlet are T-shaped in plan view.
- the outlet-side secondary flow path 400 includes, in order from the connection allowing portion 41 side, an insertion space 401 that allows insertion of the above-described filling jig and the like, a small-diameter space 402 that is smaller in diameter than the insertion space 401, and a small-diameter space.
- a small-diameter connecting space 403 that connects the space 402 and a residual pressure holding valve mechanism insertion space 404 described later, and a residual pressure holding valve mechanism insertion space 404 that allows insertion of a residual pressure holding valve mechanism unit 100 described later.
- the outlet 40 is formed to communicate in the axial direction.
- a circular circular channel 405 that communicates with the end of the in-housing secondary-side channel 64 and is formed outside the residual pressure holding valve mechanism insertion space 404 is provided.
- the residual pressure holding valve mechanism insertion space 404 includes a tip side insertion space 404a that allows insertion of the tip side of the residual pressure holding valve mechanism unit 100, a large diameter insertion space 404b that is larger in diameter than the tip side insertion space 404a, and a residual pressure holding space 404a.
- the pressure holding valve mechanism 100 is constituted by a screwing space 404c that allows screwing of the valve lid 140 on the rear end side.
- the circular flow path 405 is provided outside the distal end side insertion space 404a so that the inner diameter is integrated with the distal end side insertion space 404a at an intermediate position in the distal end side insertion space 404a of the residual pressure holding valve mechanism insertion space 404. Is formed.
- FIG. 3 shows the residual pressure holding valve mechanism portion 100 that is mounted in the residual pressure holding valve mechanism insertion space 404 of the above-described outlet-side secondary flow path 400 and has a residual pressure holding function in the opened state of the closing valve mechanism 50 together with FIG. explain.
- the residual pressure holding valve mechanism 100 includes a seal seat 110, a valve body 120, a valve box body 130, a valve lid body 140, an O-ring 150, and a coil spring 160.
- the left side is the front side (front end side) in the axial direction
- the right side is the rear side (rear end side) in the axial direction.
- the seal seat 110 includes a ring-shaped body 111 having substantially the same diameter as the distal-side insertion space 404a of the residual pressure holding valve mechanism insertion space 404, and a front projecting portion 112 that projects forward from the inner diameter of the ring-shaped body 111.
- An O-ring groove 113 that allows the O-ring 150 to be fitted is provided on the rear surface of the ring-shaped main body 111.
- the seal seat 110 is provided with a through-hole 114 that has substantially the same diameter as the connection space 403 and allows insertion of a tip protrusion 121 of the valve body 120 described later.
- the O-ring groove 113 is a concave groove having a depth and a width slightly shallower than the diameter of the O-ring 150 and having an open rear side.
- the valve main body 120 includes a front end protruding portion 121 protruding forward on the front side, a cylindrical cylindrical main body portion 122 having a large diameter behind the front end protruding portion 121, and a diameter larger than that of the cylindrical main body portion 122.
- the large-diameter portion 123 having the fitting groove 124 that allows the O-ring 150 to be fitted has a substantially cylindrical shape that gradually increases in diameter, and the cylindrical main body portion 122 and the large-diameter portion 123 have a rear end.
- a spring space 125 that is open on the side and allows the coil spring 160 to be fitted therein is provided, and a communication hole 126 that communicates with the spring space 125 is provided inside the tip protrusion 121.
- the front end surface of the cylindrical main body portion 122 is provided with a front convex portion 127 that protrudes forward along the outer peripheral edge.
- the valve box body 130 includes a ring-shaped main body 131 having substantially the same diameter as the large-diameter insertion space 404b, and a front protrusion 132 that protrudes forward from the inner diameter side of the ring-shaped main body 131. Includes an O-ring groove 133 that allows the O-ring 150 to be mounted, and an internal space 134 that allows the valve body 120 to be assembled therein.
- the front protrusion 132 is formed to have substantially the same diameter as the distal end side insertion space 404a, and about 2/3 of the rear side and the outer diameter side of the O ring 150 fitted in the O ring groove 113 is forward. A pressing portion 135 to be pressed is formed.
- the front protrusion 132 is formed with a plurality of radial through holes 136 in the circumferential direction that communicate the outside of the front protrusion 132 and the internal space 134 in the radial direction.
- the valve lid body 140 is fitted into the screwing space 404c and has a cylindrical shape with a thread formed on the outer peripheral surface (not shown) that fits into a screw groove formed on the inner surface of the screwing space 404c.
- a spring recess 141 that regulates the position of the coil spring 160 at the center of the coil, an O-ring groove 142 that allows the O-ring 150 to be fitted on the outer side of the spring recess 141, and a valve box on the outermost diameter side.
- a regulating ring 143 that regulates the rear end side of the ring-shaped main body 131 of the body 130.
- the coil spring 160 is a coil spring that can be inserted into the spring space 125 and is longer than the length of the spring space 125.
- the seal seat body 110, the valve body 120, the valve box body 130, the valve lid body 140, the O-ring 150 and the coil spring 160 configured as described above are connected to the residual pressure holding valve mechanism insertion space 404 in the outlet side secondary flow path 400.
- the residual pressure holding valve mechanism 100 is constructed by assembling to the above.
- the seal seat 110 in which the O-ring 150 is assembled in the O-ring groove 113 is fitted into the distal end of the distal-side insertion space 404a of the residual pressure holding valve mechanism insertion space 404.
- the O-ring 150 is mounted in a space surrounded by the inner surface of the distal end side insertion space 404a, the front protrusion 112 of the seal seat 110, and the ring-shaped main body 111.
- the ring-shaped main body 111 having the O-ring groove 113 that holds the O-ring 150 protrudes on the shortest conduction path of the gas G that linearly connects the circular flow path 405 and the connection space 403. Is arranged.
- the O-ring 150 is assembled in the O-ring groove 133, and the valve body 120 in which the O-ring 150 is assembled in the fitting groove 124 is inserted into the internal space 134 of the valve box body 130. Further, the valve box body 130 into which the valve main body 120 has been inserted is inserted so that the front protrusion 132 is positioned in the distal end side insertion space 404a and the ring-shaped main body 131 is positioned in the large-diameter insertion space 404b.
- the tip protruding portion 121 of the valve body 120 assembled so as to protrude forward from the pressing portion 135 passes through the through hole 114 of the seal seat body 110. Further, the rear side and the radially outer side of the O-ring 150 assembled in the O-ring groove 113 of the seal seat 110 are in contact with the pressing portion 135 and are pressed forward by the pressing portion 135.
- the coil spring 160 is inserted into the spring space 125 of the valve body 120, the rear end portion of the coil spring 160 is fitted into the spring recess 141, and the O-ring 150 is assembled with the O-ring 150. Is screwed into the screwing space 404c to complete the assembly of the residual pressure holding valve mechanism 100.
- the position of the rear end of the ring-shaped main body 131 of the valve box body 130 is regulated by the regulating ring 143 of the valve lid body 140, and the valve box body 130 fitted in the large-diameter insertion space 404b is used as the valve lid body.
- the seal seat 110 is pushed forward by the pressing portion 135 of the valve box body 130, and the position of the seal seat 110, the valve box body 130, and the valve lid body 140 is fixed in the residual pressure holding valve mechanism insertion space 404. ing.
- the residual pressure holding valve mechanism 100 assembled in this way is incorporated into the internal space 134 of the valve box body 130 by the coil spring 160 that uses the valve lid body 140 screwed into the screwing space 404c as a reaction force.
- the valve body 120 is urged forward by a predetermined urging force.
- the O-ring 150 formed in a circular cross section is assembled in a concave O-ring groove 133 that opens the rear of the valve box body 130, the front, radial inner side, and radial outer side of the circular cross section are O-rings. It is regulated by the groove 133, and further, about 2/3 of the outer diameter is regulated by the pressing portion 135 of the valve box body 130 in the rear of the opened cross section by the pressing portion 135 of the valve box body 130. For this reason, in the circular cross section of the O-ring 150 assembled in the O-ring groove 133, only a part on the rear side and the inside of the diameter is not restricted, and this unregulated part is regarded as the front convex part 127 of the valve body 120.
- the contact allowing portion 151 that allows the contact of the contact is provided (see FIG. 5).
- the O-ring 150 assembled in the fitting groove 124 contacts the inner surface of the valve box body 130 in the radial direction
- the O-ring 150 assembled in the O-ring groove 133 contacts the inner surface of the large-diameter insertion space 404b in the radial direction.
- the O-ring 150 assembled in the O-ring groove 142 comes into contact with the back surface of the valve box body 130 in the axial direction. Accordingly, the outside of the valve body 120 and the inside of the valve body 120 are sealed and divided.
- the residual pressure holding valve mechanism portion 100 assembled in the residual pressure holding valve mechanism insertion space 404 in a state in which sealing is ensured is forwarded by the coil spring 160 in the sealed state by the above-described closing valve mechanism 50.
- the valve main body 120 is positioned at the front valve closing position, and the front convex portion 127 bites into the contact allowance portion 151 to be in the valve closed state as shown in FIG.
- the outlet secondary side flow path 400 and the housing secondary side flow path 64 are divided by the residual pressure holding valve mechanism 100.
- the closing valve mechanism 50 is opened, so that the primary flow path 62, the closing valve mounting recess 61, and the secondary side flow in the housing.
- the gas G is conducted through the path 64 to the circular flow path 405. Since the gas G conducted to the circular flow path 405 has a pressure at the time of filling, it passes through the radial through hole 136 of the valve box body 130 and is conducted to the internal space 134 of the valve box body 130.
- the O-ring 150 assembled in the O-ring groove 113 of the seal seat 110 fixed to the outlet 40 is regulated except for the contact allowing portion 151, that is, covered by the O-ring groove 113 and the pressing portion 135. Therefore, although it passes through the vicinity of the O-ring 150 assembled to the valve box body 130, it is possible to prevent a conduction noise due to the conduction of the gas G.
- the pressure in the cylinder container decreases.
- the pressure drop in the cylinder container also reduces the pressure of the gas G that is conducted.
- the valve body 120 moves forward by the biasing force of the coil spring 160. Then, the valve is moved to the valve closing position, and the residual pressure holding valve mechanism 100 is closed. For this reason, the gas G can remain in the cylinder container at a pressure lower than the urging force of the coil spring 160.
- the container valve 1 in which the residual pressure holding valve mechanism portion 100 that prevents the gas G passing through the flow path 60 from flowing in the unintended direction is mounted in the residual pressure holding valve mechanism insertion space 404 is as follows.
- the valve main body 120 is disposed so as to freely advance and retract between the valve closing position and the valve opening position, and retreats toward the valve opening position by the pressure of the gas G conducted through the flow path 60.
- a coil spring 160 that urges the valve body 120 in the forward direction from the valve-opening position toward the valve-closing position, a forward convex portion 127 disposed at the tip of the valve body 120 located in the valve-closing position, and a forward / backward direction Since the O-ring 150 having elasticity for sealing and the seal seat 110 and the pressing portion 135 for holding the O-ring 150 are provided, the switching of the closing valve mechanism 50 and the residual pressure holding valve mechanism portion 100 are performed. , And release the sealing of the G can be reliably switched.
- the conduction sound due to the conduction of the gas G is caused by the O-ring 150 provided on the valve body at the valve opening position in the conventional residual pressure holding valve mechanism being vibrated by the conduction of the gas G or coming off from a predetermined position.
- the seal seat 110 and the pressing portion 135 that hold the abutting allowance portion 151 of the O-ring 150 that allows the abutment of the front convex portion 127 to be at least exposed. Is fixed to the outlet 40, that is, the O-ring 150 is fixed to the fixed outlet 40 with respect to the movable valve body 120. It is possible to prevent the held O-ring 150 from vibrating and resonating or coming off due to blow-down, and to prevent the conduction sound of the gas G from being generated.
- the ring-shaped inner diameter and outer diameter, and the three front directions are restricted by the ring groove 113, and the rear outer diameter is restricted by the pressing portion 135. Since the four directions other than the contact allowance portion 151 in the circular cross-section of the ring 150 are regulated by the seal seat 110 and the pressing portion 135, O attached to the ring groove 113 of the seal seat 110 by the conduction of the gas G. It is possible to prevent the ring 150 from vibrating and resonating or coming off due to blow-down, and it is possible to more reliably prevent the generation of the conduction sound of the gas G.
- the O-ring 150 is pressed against the elastic O-ring 150 by pressing the rear portion other than the contact allowing portion 151 with which the front convex portion 127 abuts with the pressing portion 135 in the circular cross section of the O-ring 150. Since the prestress is applied by the pressing force by the portion 135, even if a force in the direction opposite to the pressing direction by the pressing portion 135 is applied by the conduction of the gas G, the sealing is performed by the conduction of the gas G. It is possible to prevent the O-ring 150 assembled in the ring groove 113 of the seat body 110 from vibrating and resonating or coming off due to blowdown, and the generation of the conduction sound of the gas G can be further reliably prevented.
- the ring of the seal seat 110 that holds the O-ring 150 on the shortest conduction path of the gas G in the secondary side flow path 63 that is configured by the secondary side flow path 64 in the housing and the secondary side flow path 400 in the outlet. Since the ring-shaped main body 111 having the groove 113 is disposed so as to protrude, the conducting gas G is conducted so as to be bypassed by the seal seat 110, and the generation of conduction noise can be more reliably prevented.
- the secondary side flow path 63 constituted by the secondary side flow path 64 in the housing that communicates with the secondary side flow path 400 in the outlet 40, the remaining space close to the insertion space 401 to which the filling tool and the device are connected.
- the residual pressure holding valve mechanism portion 100 is mounted in the pressure holding valve mechanism insertion space 404, there is a possibility that a conduction sound generated by the conduction of the gas G may be heard well from the outside, but the residual pressure holding valve mechanism having the above-described configuration. Since the part 100 can prevent the generation of the conduction sound due to the conduction of the gas G, the conduction sound is not heard from the outside.
- the spring strength that moves the valve main body 120 to the valve closing position with respect to a predetermined pressure of the residual gas G to be left in the cylinder container when the gas G is released through the passage 60 through the coil spring 160 By being comprised by this, it can be set as the state which left the gas G of the predetermined pressure, without discharge
- the fluid of the present invention corresponds to the gas G
- the storage container corresponds to the cylinder container
- the valve body corresponds to the housing 31
- the container mounting portion corresponds to the cylinder mounting portion 32
- the fluid inlet / outlet part corresponds to the outlet side secondary flow path 400
- the on-off valve corresponds to the shut-off valve mechanism 50
- the conduction direction regulating valve mechanism corresponds to the residual pressure holding valve mechanism unit 100
- the restriction valve mounting space corresponds to the residual pressure holding valve mechanism insertion space 404
- the conduction direction regulating valve corresponds to the valve body 120
- the biasing means corresponds to the coil spring 160
- the tip contact portion corresponds to the front convex portion 127
- the sealing means and the elastic ring body correspond to the O-ring 150
- the sealing means holding part corresponds to the seal seat 110 and the pressing part 135,
- the pressing means corresponds to the pressing part 135,
- the secondary side flow path corresponds to the secondary side flow path 63 constituted by the secondary side flow path
- the gas is described as the fluid, but it may be a liquid or a gel body.
- the seal seat 110 having the O-ring groove 113 for assembling the O-ring 150 is assembled to the outlet 40.
- the rear side and the outer diameter of the assembled O-ring 150 may be restricted by a part of the outlet 40 to expose the contact allowance portion 151.
- components having the same functions as those in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted.
- the residual pressure holding valve mechanism 100 is assembled to the container valve 1 mounted on the cylinder container as described above, but the residual pressure holding valve mechanism 100 is assembled to the pin index valve 2 as shown in FIG. May be.
- a pin index valve 2 is mounted on a medical cylinder container filled with oxygen gas and is frequently used in medical institutions, but the pin index valve 2 assembled with the residual pressure holding valve mechanism 100 is connected to the gas G. Since generation of sound can be prevented, for example, even when used in a quiet environment such as surgery, it can be fully utilized.
- FIG. 7 components having the same functions as the components in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted.
- the residual pressure holding valve mechanism portion 100 is disposed in the residual pressure holding valve mechanism insertion space 404, but a check valve mechanism or the like may be mounted.
- a member having a sealing property and elasticity such as a rubber packing or a metal packing whose cross-sectional shape is an ellipse or with a lip may be attached.
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Abstract
Description
上記導通方向規制弁機構は、例えば、残圧保持弁機構や逆止弁機構などの導通方向を規制するために、閉弁位置と開弁位置とに進退自在に配置した弁本体を有する弁機構で構成することができる。
上記封止手段は、Oリング、ゴムパッキング、メタルパッキングなど封止性及び弾性を有する手段とすることができる。
詳述すると、流体の貯蔵を許容する貯蔵容器に対してバルブ本体を取り付けられる容器取付け部と、前記バルブ本体において前記流体の出入を許容する流体出入部と、前記容器取付け部から前記流体出入部まで連通するとともに、両端部が開放され、前記流体の通過を許容する流路と、該流路の中間部分において開閉を切り替える開閉弁とを備えた容器バルブであって、前記流路を放出方向に導通する前記流体の意図しない方向への導通を防止する導通方向規制弁機構を、前記流路に形成した規制弁装着空間に装着し、前記導通方向規制弁機構に、前記規制弁装着空間内において、閉弁位置と開弁位置とに進退自在に配置し、前記流路を導通する前記流体の圧力によって前記開弁位置に向かって後退する導通方向規制弁と、該導通方向規制弁を、前記開弁位置から前記閉弁位置に向かって前進方向に付勢する付勢手段と、前記閉弁位置に位置する前記導通方向規制弁の先端に配置した先端当接部と、前記進退方向に当接して、封止する弾性を有する封止手段と、前記封止手段を保持する封止手段保持部とを備えたため、開閉弁の切替と、導通方向規制弁機構とによって、流体の封止と放出とを確実に切り替えることができる。
弾性リング体は、いわゆるOリングや、断面形状が楕円形など円形でないリング、あるいはリップ付きのリングなどとすることができる。
この発明により、前記封止手段保持部に保持する前記封止手段を、前記先端当接部が前記当接許容部に当接する当接方向に押圧手段によって押圧するため、つまり、弾性を有する封止手段に押圧手段による押圧力によってプレストレスが作用しているため、仮に、流体の導通によって、押圧手段による押圧方向と逆方向の力が作用した場合であっても、導通する流体によって、封止手段保持部に保持された封止手段が振動して共鳴したり、ブローダウンによって外れたりすることを防止でき、流体の導通音の発生をさらに確実に防止することができる。
なお、図1は容器バルブ1の断面図を示し、図2は容器バルブ1における残圧保持弁機構部100の断面図を示し、図3は残圧保持弁機構部100の拡大断面図を示し、図4は残圧保持弁機構部100の分解斜視図を示し、図5は残圧保持弁機構部100の説明図を示している。
なお、アウトレット40の内部に形成され、二次側流路63の一部を構成するアウトレット内二次側流路400やアウトレット40については、残圧保持弁機構部100ともに後述する。
グランドナット52は、頭部ナット部52aと、閉止弁装着凹部61の作動室61aの内面に形成した雌ネジと螺合する雄ネジ部52bとで構成する中空の略円筒形である。
閉止部材55は、中間伝動具54の閉止部材嵌合凹部54bに嵌合する平面視円形の弾性部材であり、閉弁状態で開口弁座62bが食い込み可能に構成している。
また、円筒本体部122の前端面には、外周縁に沿って前方に突出する前方凸部127を備えている。
コイルスプリング160は、スプリング空間125に挿入可能で、スプリング空間125の長さより長いコイルスプリングである。
また、弁本体120を挿入した弁箱体130を、前方突出部132が先端側挿入空間404aに位置し、リング状本体131が径大挿入空間404bに位置するように挿入する。
この閉弁位置では、アウトレット内二次側流路400とハウジング内二次側流路64とは、残圧保持弁機構部100によって分断されている。
以下同様に、
貯蔵容器は、ボンベ容器に対応し、
バルブ本体は、ハウジング31に対応し、
容器取付け部は、ボンベ取付け部32に対応し、
流体出入部は、アウトレット内二次側流路400に対応し、
開閉弁は、閉止弁機構50に対応し、
導通方向規制弁機構は、残圧保持弁機構部100に対応し、
規制弁装着空間は、残圧保持弁機構挿入空間404に対応し、
導通方向規制弁は、弁本体120に対応し、
付勢手段は、コイルスプリング160に対応し、
先端当接部は、前方凸部127に対応し、
封止手段及び弾性リング体は、Oリング150に対応し、
封止手段保持部は、シール座体110及び押付部135に対応し、
押圧手段は、押付部135に対応し、
二次側流路は、ハウジング内二次側流路64及びアウトレット内二次側流路400で構成する二次側流路63に対応するが、
この発明は、上述の実施形態の構成のみに限定されるものではなく、多くの実施の形態を得ることができる。
また、上述の説明では、Oリング150を組付けるOリング溝113を有するシール座体110をアウトレット40に組み付けたが、図6に示すように、径小空間402を構成する部品にOリング150を組付け、組み付けたOリング150の後方側及び径外側をアウトレット40の一部で規制して、当接許容部151を露出する構成としてもよい。なお、図6において、図1乃至5における各構成と同じ機能を奏する構成については同符号を付して説明を省略する。
このようなピンインデックスバルブ2は、酸素ガスを充填した医療用ボンベ容器に装着され、医療機関で多用されるが、残圧保持弁機構部100を組付けたピンインデックスバルブ2はガスGの導通音の発生を防止できるため、例えば、手術などの静寂な環境で使用された場合であっても、十分に活用することができる。なお、図7において、図1乃至5における各構成と同じ機能を奏する構成については同符号を付して説明を省略する。
また、Oリング150の代わりに、断面形状が楕円形やリップ付きなどのゴムパッキング、メタルパッキングなどの封止性及び弾性を有する部材を装着してもよい。
2…ピンインデックスバルブ
31…ハウジング
32…ボンベ取付け部
50…閉止弁機構
60…流路
62…一次側流路
63…二次側流路
64…ハウジング内二次側流路
100…残圧保持弁機構部
110…シール座体
120…弁本体
127…前方凸部
135…押付部
150…Oリング
151…当接許容部
160…コイルスプリング
400…アウトレット内二次側流路
404…残圧保持弁機構挿入空間
G…ガス
Claims (5)
- 流体の貯蔵を許容する貯蔵容器に対してバルブ本体を取り付けられる容器取付け部と、前記バルブ本体において前記流体の出入を許容する流体出入部と、前記容器取付け部から前記流体出入部まで連通するとともに、両端部が開放され、前記流体の通過を許容する流路と、該流路の中間部分において開閉を切り替える開閉弁とを備えた容器バルブであって、
前記流路を放出方向に導通する前記流体の意図しない方向への導通を防止する導通方向規制弁機構を、前記流路に形成した規制弁装着空間に装着し、
前記導通方向規制弁機構に、
前記規制弁装着空間内において、閉弁位置と開弁位置とに進退自在に配置し、前記流路を導通する前記流体の圧力によって前記開弁位置に向かって後退する導通方向規制弁と、
該導通方向規制弁を、前記開弁位置から前記閉弁位置に向かって前進方向に付勢する付勢手段と、
前記閉弁位置に位置する前記導通方向規制弁の先端に配置した先端当接部と、前記進退方向に当接して、封止する弾性を有する封止手段と、
前記封止手段において前記先端当接部の当接を許容する当接許容部を少なくとも露出しながら、前記封止手段を保持する封止手段保持部とを備え、
該封止手段保持部を、前記バルブ本体に設けた
容器バルブ。 - 前記封止手段を、弾性を有するリング状である弾性リング体で構成し、
前記封止手段保持部を、前記弾性リング体の断面形状における、前記リング状の径内側及び径外側、前記先端当接部に対向する側と反対側、並びに前記先端当接部に対向する側の径外側を規制する構成とした
請求項1に記載の容器バルブ。 - 前記封止手段保持部に、
保持する前記封止手段を、前記先端当接部が前記当接許容部に当接する当接方向に押圧する押圧手段を備えた
請求項1または2に記載の容器バルブ。 - 前記流路を、前記容器取付け部から前記開閉弁が配置された弁室までの一次側流路と、前記弁室から前記流体出入部までの二次側流路とで構成し、
前記規制弁装着空間を前記二次側流路に設けるとともに、
前記封止部材を保持する前記封止手段保持部が、前記規制弁装着空間を介して前記二次側流路を導通する前記流体の最短導通経路上に突出する態様で配置した
請求項1乃至3のうちいずれかに記載の容器バルブ。 - 前記付勢手段を、
前記流路を導通して前記流体が放出される際における、前記貯蔵容器に残置する残置流体の所定圧力に対して、前記導通方向規制弁を前記閉弁位置に移動させるバネ強度で構成した
請求項1乃至4のうちいずれかに記載の容器バルブ。
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PCT/JP2015/065925 WO2016194146A1 (ja) | 2015-06-02 | 2015-06-02 | 容器バルブ |
EP15800705.4A EP3306176B1 (en) | 2015-06-02 | 2015-06-02 | Container valve |
KR1020157035881A KR101826152B1 (ko) | 2015-06-02 | 2015-06-02 | 용기 밸브 |
AU2015271926A AU2015271926B1 (en) | 2015-06-02 | 2015-06-02 | Cylinder valve |
CN201580001102.8A CN107076361B (zh) | 2015-06-02 | 2015-06-02 | 容器阀 |
US14/973,763 US9683706B2 (en) | 2015-06-02 | 2015-12-18 | Cylinder valve |
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DE102016008058A1 (de) * | 2016-07-01 | 2018-01-04 | Daimler Ag | Tankventil |
LU100263B1 (en) * | 2017-05-26 | 2019-01-04 | Luxembourg Patent Co | Compact gas cylinder valve with residual pressure function |
KR101901285B1 (ko) * | 2018-05-08 | 2018-11-05 | (주)인터오션 | 고압가스용 개폐밸브 |
LU100792B1 (en) | 2018-05-14 | 2019-11-14 | Luxembourg Patent Co | Compact gas cylinder valve with residual pressure fonction and method for manufacturing such valve |
JP7154495B2 (ja) * | 2018-08-10 | 2022-10-18 | 株式会社ネリキ | 導通口と配管端部との接続構造、開閉バルブ装置及び取外し治具 |
KR102241538B1 (ko) * | 2020-05-13 | 2021-04-16 | 주식회사 케이씨 | 가스공급장치와 개스킷 교체 방법 |
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JP2001263599A (ja) * | 2000-03-22 | 2001-09-26 | Neriki:Kk | 逆止弁付きボンベバルブ |
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CN107076361A (zh) | 2017-08-18 |
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AU2015271926B1 (en) | 2016-12-15 |
KR20170002271A (ko) | 2017-01-06 |
CN107076361B (zh) | 2019-06-11 |
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KR101826152B1 (ko) | 2018-03-22 |
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