WO2020049879A1 - 流体制御装置の設置方法及び設置装置 - Google Patents
流体制御装置の設置方法及び設置装置 Download PDFInfo
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- WO2020049879A1 WO2020049879A1 PCT/JP2019/028224 JP2019028224W WO2020049879A1 WO 2020049879 A1 WO2020049879 A1 WO 2020049879A1 JP 2019028224 W JP2019028224 W JP 2019028224W WO 2020049879 A1 WO2020049879 A1 WO 2020049879A1
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- Prior art keywords
- housing
- valve
- fluid
- neck
- opening
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
- F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe
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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
- F16K27/00—Construction of housing; Use of materials therefor
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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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Definitions
- the present invention provides a fluid control having at least a casing installed in a fluid pipe in a sealed state, and a flow control valve for controlling a fluid in the pipe by inserting a valve body into a hole of the fluid pipe formed in the casing.
- the present invention relates to an installation method and an installation device for installing an apparatus in an undisturbed state.
- a housing split T-shaped tube having a divided structure is externally fitted to an existing fluid pipe in a sealed manner, and the open end of an upper end of a neck constituting the housing is attached to the opening end.
- a work valve device work gate valve
- a control valve is installed on the work valve device (work case, operating rod, jack mechanism) that blocks the inside of the housing.
- the valve body of the flow control valve is inserted into the pipe through the hole of the fluid pipe, and the inner peripheral surface of the fluid pipe is used as a valve seat.
- a fluid for example, see Patent Document 1.
- JP 2011-38584 A (page 18, FIG. 33)
- a working valve device is connected to an open end formed at an upper end of a neck portion of a split T-tube that constitutes a casing fitted to the fluid pipe, and further, the working valve device is further connected.
- An installation device for a flow control valve is connected so as to overlap with the upper end of the housing, and the flow control valve is hermetically connected to the open end of the upper end of the neck of the housing. Therefore, the extension stroke of the installation device of the flow control valve becomes long, and the valve body cannot be inserted at the designed position, resulting in a displacement, and a problem arises in that the controllability of the fluid in the pipe cannot be maintained at a high level.
- the length of the extension stroke increases the size of construction equipment such as a control valve installation device and a work valve device, not only the equipment cost and construction cost are increased, but also the weight of the existing fluid is reduced. It also caused excessive load on the tube.
- the present invention has been made in view of such problems, and improves the positional accuracy of a valve element inserted into a hole formed in a fluid pipe in a housing, and improves controllability of fluid in the pipe. It is another object of the present invention to provide a method and an apparatus for installing a fluid control device, which can reduce the size, weight, and cost of construction equipment such as a control valve installation device and a work valve device.
- a method for installing a fluid control device includes: A fluid control device having at least a casing installed in a fluid pipe in a sealed state, and a flow control valve including a valve body and a valve casing insertable into a hole of the fluid pipe formed in the casing.
- a work valve device having a work valve body that opens and closes the inside of the housing is provided, Opening the working valve body in a state of sealingly surrounding the open end formed in the neck, In a state where the inner side of the open end and the outer side surrounding the open end in a sealable manner are made to have the same pressure, the flow restricting valve communicating with the inside of the housing in a sealed state is provided at the open end. From the part, by inserting the tip of the valve housing of the control valve to the installation position beyond the opening of the neck, the peripheral surface of the valve housing and the peripheral surface of the neck at the installation position Is sealed by an annular sealing member.
- the tip of the valve housing of the flow control valve is opened at the opening in the neck. Can be sealed by an annular sealing member at an installation position beyond the above, the opening and the open end can be simultaneously blocked in this sealed state. Therefore, even if the fluid pipe has a relatively large diameter, the pressing force required for installing the flow control valve can be reduced to accurately install the flow control valve at a desired position.
- the fulcrum at the time of insertion into the hole of the valve is reliable, the position accuracy of the valve body can be improved, the controllability of the fluid in the pipe can be improved, and the work is lightweight and compact without the need for operation of the valve body
- the valve device can be easily attached and detached.
- the invention is characterized in that the inside of the housing partitioned by the working valve body communicates with each other, and the air in the housing is discharged to the outside. According to this feature, when communicating the inside of the housing partitioned by the work valve body, the air in the housing can be discharged, so that the inside of the housing can be filled with the fluid in the pipe.
- the casing has a divided structure in which the fluid pipe is fitted around the fluid pipe in a sealed manner, and the hole of the fluid pipe is formed by punching with a punch.
- a hole can be formed by piercing the existing fluid pipe in a non-disruptive flow state, and the valve element can be inserted.
- an opening for attaching and detaching the working valve device is provided at the neck of the housing, so that the mounting position of the working valve device can be close to the fluid pipe, so that the drilling stroke is shortened and the displacement of the drilling is minimized.
- it is possible to reduce the size, weight, and cost of construction equipment such as a drilling machine and a work valve device.
- a movement preventing means for preventing the movement of the housing is provided on the fluid pipe. According to this feature, even if the pressure of the in-pipe fluid acts on the housing by closing the flow control valve, the movement of the housing can be prevented by the movement preventing means, so that high fluid controllability can be maintained. In addition, by disposing the movement preventing means at the time of drilling, it is possible to suppress the displacement of the hole.
- the working valve body is opened in a state where the insides of the housings partitioned by the working valve body are communicated with each other and are at the same pressure.
- the insides of the casings partitioned by the working valve body are communicated with each other and are at the same pressure
- the opening and the open end can be simultaneously blocked in this sealed state because the sealing can be performed by the annular sealing member. Therefore, the pressure required for installing the flow control valve can be reduced and the flow control valve can be accurately installed at a desired position.
- a communication opening for communicating the insides of the casings separated by the work valve body with each other is provided in the neck. According to this feature, the use of the neck allows a high degree of freedom in designing the location where the communication opening is formed, and facilitates the operation of communicating the inside of the housing partitioned by the work valve body.
- a communication opening is provided in the working valve housing of the working valve device for connecting the inside of the housing partitioned by the working valve body to each other. According to this feature, since the communication opening is provided in the work valve housing close to the work valve body that partitions the inside of the housing, the communication passage can be configured to be short.
- a holding member for holding the fluid control installed in the housing is hermetically attached to the opening of the neck. According to this feature, using the opening communicating with the inside of the neck, the holding member that holds the fluid control installed in the housing can be easily attached, and the opening is sealed by the holding member. Can be.
- a fluid control device having at least a casing installed in a fluid pipe in a sealed state, and a flow control valve including a valve body and a valve casing insertable into a hole of the fluid pipe formed in the casing.
- An installation device for installing the in an uninterrupted state A work valve device provided with a work valve body attached to an opening formed in a neck portion of the housing and partitioning the inside of the housing to be openable and closable, Opening the working valve body in a state of sealingly surrounding the open end formed in the neck, In a state where the inner side of the open end and the outer side sealingly surrounding the open end are made to have the same pressure, the flow restricting valve communicating with the inside of the housing in a sealed state is provided at the open end. From the part, by inserting the tip of the valve housing of the flow control valve to an installation position beyond the opening of the neck, the peripheral surface of the valve housing and the peripheral surface of the neck at the installation position And an annular sealing member that seals between the two.
- the tip of the valve housing of the flow control valve is opened at the opening in the neck. Can be sealed by the annular sealing member at the installation position exceeding the above, the opening and the open end can be simultaneously blocked in this sealed state. Therefore, even if the fluid pipe has a relatively large diameter, the pressure required for installing the flow control valve can be reduced and the flow control valve can be accurately installed at a desired position.
- the fulcrum at the time of insertion into the hole of the valve is reliable, the position accuracy of the valve body can be improved, the controllability of the fluid in the pipe can be improved, and the work is lightweight and compact without the need for operation of the valve body
- the valve device can be easily attached and detached.
- a movement preventing means for preventing movement of the housing is provided on the fluid pipe. According to this feature, even if the pressure of the in-pipe fluid acts on the housing by closing the flow control valve, the movement of the housing can be prevented by the movement preventing means, so that high fluid controllability can be maintained. In addition, by disposing the movement preventing means at the time of drilling, it is possible to suppress the displacement of the hole.
- FIG. 2 is a perspective view illustrating a housing constituting the fluid control device according to the first embodiment.
- (A) is a partial cross-sectional front view showing a housing in which a fluid pipe is fitted, and (b) is a side cross-sectional view. It is a top view of a housing
- FIG. 5 is a partial cross-sectional front view showing a work valve device assembled to a housing.
- FIG. 4 is a partial cross-sectional perspective view showing a state where a fluid pipe is being drilled by a drilling machine. It is a partial sectional perspective view showing a situation where a chip is being discharged by a discharger.
- FIG. 1 is a partial cross-sectional front view showing a housing in which a fluid pipe is fitted
- (b) is a side cross-sectional view. It is a top view of a housing
- FIG. 5 is a partial cross-sectional front view showing a work valve device assembled to a
- FIG. 4 is a partial cross-sectional perspective view showing a state in which the inside of a casing partitioned by a work valve body is communicated.
- A is a partial cross-sectional front view showing a state in which a control valve is inserted by an insertion machine
- (b) is an AA cross-sectional view of (a).
- (A) is sectional drawing of the sealing member in Example 1
- (b) is sectional drawing which shows the modification 1 of a sealing member
- (c) is sectional drawing which shows the modification 2 of a sealing member.
- FIG. 4 is a partial cross-sectional perspective view showing a state in which installation of a control valve has been completed by an insertion machine.
- FIG. 11 is a partial cross-sectional front view similar to FIG. 10.
- FIG. 4 is a partial cross-sectional perspective view showing a situation where a blocking ring or the like is mounted on a housing in which a flow control valve is installed.
- FIG. 4 is a partial cross-sectional front view showing a flow control valve fixed to a housing. It is a partial cross-sectional side view similarly to FIG. (A) is a partial cross-sectional front view showing a modification of the closing lid at the opening of the housing, and (b) is a BB cross-sectional view of (a).
- FIG. 18 is a plan view of the movement preventing means as in FIG. 17. It is a figure which shows the modification 1 of a movement prevention means, (a) is a front view of a movement prevention means, (b) is a side view similarly.
- FIG. 20 is a plan view of the movement preventing means as in FIG. 19. It is a front view which shows the modification 2 of a movement prevention means. It is a partially expanded sectional view which shows the modification 3 of a movement prevention means. It is a partially expanded sectional view which shows the modification 4 of a movement prevention means.
- the fluid control device according to the present invention includes a casing 5 that externally fits the fluid pipe 1, a flow control valve 10 that is installed in the casing 5 and controls fluid in the pipe, Mainly consisting of
- a fluid control device and a method of installing the same in a non-disrupted state, a predetermined portion of an existing fluid pipe 1 which is a conduit component is pierced in the casing 5, A series of flows up to installation of the control valve 10 will be described.
- the fluid in the fluid pipe 1 is clean water in this embodiment, but may be a liquid other than water, for example, industrial water, agricultural water, sewage, or the like, or a gas or gas-liquid mixture of gas and liquid. It may be a mixture.
- the fluid pipe 1 of the present embodiment is a ductile cast iron pipe having a relatively large diameter (for example, a diameter of 300 mm or more), and is formed as a straight pipe having a substantially circular cross section as shown in FIGS. .
- the fluid pipe 1 is arranged in a substantially horizontal direction.
- the fluid pipe according to the present invention may be made of metal such as cast iron or steel, or concrete, vinyl chloride, polyethylene, or polyolefin.
- the inner peripheral surface of the fluid pipe may be coated with an epoxy resin layer, mortar, plating, or the like, or an appropriate material may be coated on the inner peripheral face of the fluid pipe by powder coating.
- the fluid pipe of the present invention is not limited to a straight pipe as in the present embodiment, but may be constituted by a deformed pipe, for example.
- the deformed pipe is a generic term for a pipe having various deformed portions at least in part, such as a curved pipe portion, a branch portion, a cross portion, a different diameter portion, a connecting ring portion, a short pipe portion, and a drainage portion. It is.
- the housing 5 constituting the fluid control device is externally fitted via the member 4 in a sealed manner.
- the housing 5 has a divided structure including a plurality of divided bodies.
- the housing 5 is mainly configured by a first divided body 51 constituting an upper side and a second divided body 52 constituting a lower side. I have.
- the dividing structure of the housing 5 is not limited to this embodiment, and may be, for example, divided in the horizontal direction, or may be divided into a predetermined number of three or more.
- the divided housings are joined in a sealed state by the fastening member 2 composed of a bolt and a nut.
- the present invention is not limited thereto, and may be, for example, welding.
- the first divided body 51 of the casing 5 includes a duct casing section 5 a extending in the duct direction along the fluid pipe 1 and a duct casing section 5 a. It is composed of a tubular neck 5d having an open end 5c that opens upward, and a laterally open opening 5b, and has an inverted T-shape when viewed from the front. Is formed.
- the open end 5c of the neck 5d has a pair of flanges 5e protruding in the radial direction toward the pipe direction of the fluid pipe 1, and a plurality of through holes formed along the circumferential direction of the flange 5e. And a plurality of push bolts 5f, 5f configured to be able to be inserted into the push bolt 5f.
- the neck portion 5d is provided with a thick tube portion 5g whose outer surface protrudes in the radial direction on the cylindrical peripheral side portion, and an opening that opens toward one side of the fluid pipe 1 in the pipe line direction in the thick tube portion 5g. It has a portion 5b. As shown in FIG. 1, the opening 5 b is opened in a substantially rectangular shape which is horizontally long in a side view, and is formed so that a working valve body 31 of the working valve device 3 can be inserted therein, as described later.
- the first divided body 51 of the housing 5 has a rib 5 s extending in a vertical direction over a substantially central portion of the opening 5 b in a side view and an upper flange portion 5 e.
- a rib 5t is extended in the vertical direction so as to bridge the substantially central portion of the opening 5b in a side view and the lower channel housing portion 5a.
- the inner peripheral portion of the neck portion 5d has an inner peripheral surface 5h formed into a substantially circular curved surface in plan view and an outer radial direction at the same height position as the opening 5b.
- the recessed portion 5i, the inner peripheral surface 5j formed below the recessed portion 5i and having a diameter slightly smaller than the upper inner peripheral surface 5h, and a lower end of the inner peripheral surface 5j.
- a stepped portion 5k protruding in the radial direction.
- a communication opening 17 penetrating the neck 5d in and out is formed below the neck 5d. Is screwed.
- the working valve device 3 is hermetically connected to the opening 5b of the neck 5d.
- the work valve device 3 has a work valve body 31 that slides openably and closably within the housing 5, a housing interior 32 a that houses the work valve body 31 so as to be slidable in the horizontal direction, and one side end thereof is opened. And a housing member 32 as a working valve housing having an opening 32b.
- the housing member 32 is provided with a shaft member 34 that is rotatably and non-movably pivotally supported and extends in the horizontal direction.
- the working valve body 31 is screwed to the shaft member 34.
- the working valve body 31 is configured to be slidable with respect to the housing member 32.
- grid-like ribs 32d are provided extending vertically.
- the endless seal member 31a is covered along the upper and lower sides of the work valve body 31, and the inside of the housing 5 can be closed in a sealed manner by the seal member 31a.
- the housing member 32 is disposed on the outer surface of the neck 5d at a position where the opening 32b communicates with the opening 5b of the neck 5d.
- this housing member 32 is fastened to the neck 5d.
- the mounting bolt 37 is screwed over a plurality of through holes surrounding the opening 32b of the housing member 32 and a plurality of female screw holes surrounding the opening 5b of the neck 5d. It is concluded by joining. That is, in this embodiment, the mounting bolt 37 forms a fastening member.
- the opening 32b and the opening 5b of the neck 5d are positioned at a communication position where the opening 32b communicates with the neck 5d. Work can be performed easily.
- bolts and nuts may be configured as the fastening members.
- the housing member 32 is provided with a seal member 39 so as to surround the periphery of the opening 32b, and the sealing member 39 is brought into close contact with the peripheral edge of the opening 5b by the fastening of the above-described fastening member.
- the opening 5b and the opening 32b are sealed.
- the drilling machine 7 is hermetically connected to the open end 5c of the neck 5d.
- the drilling machine 7 includes a mounting flange tube 71, a cutter 72 for piercing the fluid pipe 1, a drive motor 74 for rotating the cutter 72 in the mounting flange tube 71, and advancing / retreating the cutter 72 in the vertical direction. And an advancing / retracting mechanism 73 for causing the movement.
- the cutter 72 is formed in a cylindrical shape with a bottom having a diameter smaller than that of the fluid pipe 1, and has a cutting blade provided at a tip thereof along a circumferential direction, and a cutting blade disposed coaxially with a rotation axis of the hole saw 72 a.
- the cutter 72 is disposed concentrically with the open end 5c of the neck 5d of the housing 5, is inserted into the neck 5d of the housing 5 from the open end 5c side, and is provided at least at the top of the fluid pipe 1. It is possible to proceed to a position penetrating the pipe wall.
- the procedure for mounting the drilling machine 7 will be described.
- the flange 75 formed at the tip of the mounting flange cylinder 71 is fastened to the flange 5e of the open end 5c of the neck 5d by a plurality of fastening members 77 in the circumferential direction.
- a seal member is provided between the upper end surface of the flange portion 5e of the neck portion 5d and the lower end surface of the flange portion 75 of the mounting flange tube 71, and this seal member is in close contact with the flange portion 75 of the mounting flange tube 71.
- connection work of the work valve device 3 may be performed, or these connection works may be performed simultaneously and in parallel.
- the communication opening 17 is used as a bypass for filling water when the flow control valve 10 is operated. Further, the above-mentioned ball valve is removed in a non-disruptive state after the perforation, and sealed with an opening / closing plug 18 shown in FIG.
- the fluid pipe 1 is formed to have a relatively large diameter, the area of the working valve body 31 that closes the inside of the housing 5 is also large, and the inside of the pipe acting on the working valve body 31 is accordingly increased.
- the housing 5 and the housing member 32 are provided by the ribs 5s and 5t provided on the housing 5 and the rib 32d provided on the housing member 32 serving as the working valve housing. Since the structural strength is increased, deformation such as bending due to the pressing force of the fluid in the pipe is prevented.
- the discharger 8 includes a mounting flange plate 81 fixed to the open end 5 c of the neck 5 d and having an open center, and an elastic flange connected to the center opening of the mounting flange plate 81.
- a flexible cylinder 83 made of a member, an operation cylinder 84 connected to the upper end of the flexible cylinder 83, and a discharge pipe 85 hermetically inserted through the mounting flange plate 81, the flexible cylinder 83, and the operation cylinder 84. It is configured.
- the rear end side of the discharge pipe 85 protrudes out of the operation tube 84, and is connected to an open / close valve (not shown) that opens and closes the inside of the discharge pipe 85.
- the mounting flange plate 81 of the discharger 8 and the open end 5c of the neck 5d are, like the mounting flange cylinder 71 of the drilling machine 7 and the open end 5c of the neck 5d, a plurality of not shown in the circumferential direction. Fastened by a fastening member.
- An on-off valve (not shown) connected to the rear end of the discharge pipe 85 is opened to open the fluid pipe 1 and the inside of the housing 5. Chips can be discharged together with the fluid.
- the operation tube 84 that coaxially fits the discharge tube 85 is gripped, and the distal end of the discharge tube 85 is suctioned by freely tilting with respect to the mounting flange plate 81 by using the elastic deformation of the flexible tube 83. Since the opening 85a can be moved to a desired position in the housing 5, almost all the material can be discharged even if chips are scattered in every corner of the housing 5.
- the flow control valve 10 is vertically movably movable from the outside of the housing cylinder 16 and detachably assembled.
- An inserter 60 is provided inside the housing cylinder 16, as the insertion means for inserting the flow control valve 10 into the housing 5, the flow control valve 10 is vertically movably movable from the outside of the housing cylinder 16 and detachably assembled.
- An inserter 60 is provided inside the housing cylinder 16, as the insertion means for inserting the flow control valve 10 into the housing 5, the flow control valve 10 is vertically movably movable from the outside of the housing cylinder 16 and detachably assembled.
- An inserter 60 is provided inside the housing cylinder 16, as the insertion means for inserting the flow control valve 10 into the housing 5, the flow control valve 10 is vertically movably movable from the outside of the housing cylinder 16 and detachably assembled.
- An inserter 60 is provided inside the housing cylinder 16, as the insertion means for inserting the flow control valve 10 into the housing 5, the flow control valve 10 is vertically mov
- the lower end of the extension rod 61 is screwed into the mounting jig 26 mounted on the upper end of the valve housing 12 of the flow control valve 10, and the upper end of Extends above the housing cylinder 16.
- the operating rod 62 which externally fits the extension rod 61 is rotatably supported so as to be rotatable and immovable in the axial direction with respect to the upper cylindrical portion 16c which constitutes the housing cylinder 16 and covers the through hole of the closing lid 16b.
- the upper end is provided with a grip 62a for rotating operation.
- an insertion tube 63 into which the operating rod 62 is fitted is pivotally supported so as to be non-rotatable and axially movable with respect to the upper cylindrical portion 16c.
- a female screw portion 63b which is vertically held between the control rod 61a and the male screw portion 62b of the operating rod 62 is provided.
- a substantially rectangular through hole 63c is formed in the lower end portion 63a of the insertion tube 63 in a plan sectional view, and a flat surface is formed so as to complement the through hole 63c.
- the protruding end 26a of the mounting jig 26 projecting substantially in a rectangular shape is internally fitted in the through hole 63c.
- the shape of the through hole 63c of the insertion tube 63 and the protruding end portion 26 of the mounting jig 26 that complements the through hole 63c is not limited to a substantially square shape, but may be a non-circular shape such as a rectangular shape, an elliptical shape, and an oval shape. I just need.
- a flow control valve 10 includes a plug 11 (valve) that passes through a perforated hole 1 b of the fluid pipe 1 and moves up and down so as to be able to open and close the pipe. And a valve housing 12 having a peripheral side portion 13 whose lower end is open so as to be movable in the direction.
- the valve housing 12 includes a shaft member 14 that is vertically rotatably supported so as to be rotatable and unable to advance and retreat, and the plug 11 is screwed to the shaft member 14.
- the plug 11 is configured to be able to move up and down with respect to the valve housing 12 by rotating the operating portion 14 a at the upper end of the shaft member 14 protruding outward from the body 12.
- the plug 11 includes a female screw 11 a having a female screw screwed to the shaft member 14, a plug 11 b made of an elastic material, and the female screw 11 a.
- a plug body 11c made of a rigid body such as a metal piece or a plastic that moves together, and a bolt / nut integrally formed by vulcanization or the like on the plug 11b, and a fixing member for connecting the plug 11b to the plug body 11c. 15 mainly.
- the plug 11 moves into the pipe through the hole 1b of the lower fluid pipe 1 by the rotation of the shaft member 14 described above, and the plug 11b extends over the entire circumference of the hole 1b of the fluid pipe 1 and the inner peripheral surface 1c.
- the stopper 11b is made of rubber having different hardnesses in an upper peripheral portion for stopping water in the hole 1b and a lower U-shaped portion for stopping water in the inner peripheral surface 1c of the fluid pipe 1. It is desirable that the plug 11b be integrally molded and attached by bonding or vulcanization, and that the plug 11b can be easily inserted while preventing the U-shaped portion from flowing due to the flow velocity. In particular, it is desirable that the circumferential portion is designed to be soft and the U-shaped portion is designed to be hard, and these are integrally formed.
- the female screw 11a initially descends at the same time as the plug 11b and the plug body 11c, but when the plug 11b comes into contact with the inner peripheral bottom of the tube, the female screw 11a becomes large with respect to the plug 11b and the plug body 11c. It moves downward, and pushes and expands the plug 11b in the outer diameter direction with the blades on both sides thereof to assist in stopping water.
- the fixing member 15 forms a core in the plug 11b, which is an elastic body, to prevent the U-shaped part from flowing due to the flow velocity.
- the plug 11b may be configured to be vulcanized to the plug body 11c or vulcanized to cover the entire body.
- a concave portion 13b is formed over the entire outer circumference on the lower end side of the peripheral side portion 13, and a sealing member 21 is provided in the concave portion 13b.
- the sealing member 21 of this embodiment is made of an elastic material integrally formed in a ring shape.
- the sealing member 21 has a base-side holding portion 21a held between the bulging portion 13c formed on the bottom surface of the recessed portion 13b and the inner wall of the recessed portion 13b, and a deformation connected to the holding portion 21a to allow elastic deformation.
- the sealing member 21 is formed such that the outermost diameter of the deformed portion 21b is larger than the inner diameter of the neck portion 5d in a natural state before the elastic deformation.
- the deformed portion 21b of the present embodiment is formed in a substantially bulb-shaped cross-sectional shape which swells smoothly in the radial direction inside and outside and the tip direction.
- the deformed portion 23b receives the pressure of the fluid evenly over substantially the entire outer surface thereof and is elastically deformed into a gentle curved surface having a large radius of curvature, so that the sealing surface between the inner peripheral surface of the neck and the inner surface is widened. It is easy to insert the valve housing.
- the housing cylinder 16 housing the control valve 10 therein is sealed to the open end 5c of the housing 5 as described above.
- the communication opening 17 provided in the neck 5d of the housing 5 below the working valve body 31 and the working valve body 31
- the connection hose 25 communicates with the communication opening 27 provided in the closing lid of the upper housing cylinder 16. By doing so, the fluid in the fluid pipe 1 is gradually introduced into the housing cylinder 16 by the fluid pressure through the communication opening 17, the connection hose 25, and the communication opening 27.
- the inside of the housing cylinder 16 and the inside of the fluid pipe 1 can be adjusted to the same pressure before the working valve body 31 is opened.
- the housing cylinder 16 is hermetically connected to the open end portion 5c of the housing 5, and the closing lid 16b is opened and filled with water, or the communication opening 27 is used in a state where the housing cylinder 16 is hermetically connected. It may be connected to the connection hose 25 after filling with water, and adjusted to the same pressure.
- the neck 5d of the housing 5 As the location where the communication opening 17 is formed, the degree of freedom in designing the location where the communication opening 17 is formed is high, and the inside of the housing 5 partitioned by the work valve body 31 is provided. Can be easily performed.
- One or both of the communication opening 17 below the work valve body 31 and the communication opening 27 above the work valve body 31 may be provided in the housing member 32 of the work valve device 3 or both.
- the air remaining in the housing cylinder 16 is discharged to the outside by opening the air vent hole 28 provided in the closing lid 16b of the housing cylinder 16 so as to be openable and closable.
- the work valve body 31 is opened, and the flow control valve 10 in the housing cylinder 16 is installed toward the lower housing 5. More specifically, by rotating the grip portion 62a of the operation rod 62 of the insertion machine 60 in the normal rotation direction, the insertion tube 63 screwed to the operation rod 62 moves downward. Along with the downward movement of the insertion tube 63, a downward pressing force is applied to the flow control valve 10 via the attachment jig 26, and the flow control valve 10 is gradually moved downward in the neck 5d. The extension rod 61 screwed to the mounting jig 26 also moves downward following the flow control valve 10.
- the pressure in the storage cylinder 16 is adjusted to the same pressure as that in the fluid pipe 1 and there is no pressure difference, so that the control valve 10 can be pressed with a small pressing force.
- a hydraulic pump may be connected to the communication opening 27 and the inside of the housing cylinder 16 (outside of the open end 5c) may be set to a high pressure to assist the pressing.
- the flow control valve 10 is pressed to an installation position where the sealing member 21 goes below the opening 5 b and comes into close contact with the inner peripheral surface 5 j of the neck 5 d.
- the push bolt 5f for temporary fixing provided on the flange portion 5e of the neck portion 5d is screwed in the inner diameter direction, so that the tip is on the outer diameter side of the peripheral side portion 13 of the valve housing 12. Since the flow control valve 10 inserted into the neck 5d of the housing 5 is fitted into the recess formed in the overhanging protrusion 13d, the upward movement and rotation of the flow control valve 10 with respect to the housing 5 are restricted.
- the above-described insertion machine 60 is operated to remove the storage tube 16 assembled to the flow control valve 10. More specifically, as shown in FIGS. 12 (a) to 12 (c), first, the extension rod 61 screwed to the mounting jig 26 is rotated by fitting a rotation tool (not shown) to the upper end thereof. Then, it is removed from the mounting jig 26. Next, the grip portion 62a of the operating rod 62 is rotated in the reverse direction, and the insertion tube 63 screwed to the operating rod 62 is moved upward, so that the lower end portion 63a is fitted in a substantially rectangular shape in plan view. Remove the fitting jig 26 from the protruding end 26a.
- the fluid in the pipe introduced into the housing cylinder 16 is discharged by a drain unit (not shown), and the housing cylinder 16 is moved together with the insertion machine 60 into the housing 5. Remove from
- the insertion device 60 that inserts the flow control valve 10 to the installation position of the housing is detachably attached to the flow control valve 10 in a sealed state, the flow control valve 10 is moved to the installation position of the housing 5. After the insertion, the insertion machine 60 can be removed without leaking the fluid.
- a through hole (not shown) that penetrates through the inside and outside of the valve housing 12 and is normally closed by an on-off plug or the like is opened, so that a sealed flow control valve is provided.
- the air remaining in the ten valve housings 12 may be discharged to the outside.
- the through-hole is formed near the upper end of the valve housing 12, so that substantially the entire amount of the air inside the valve housing 12 can be discharged to the outside without leaving the air therein.
- the working valve device 3 attached to the opening 5b of the housing 5 is sequentially removed.
- the sealing member 21 seals the inner peripheral surface 5j below the opening 5b of the neck 5d, leakage of the internal fluid is prevented even if the opening 5b is opened. Therefore, the working valve device 3 can be removed without performing sealing with the plug 11, and there is no fear that the working valve device 3 is deteriorated.
- the working valve device 3 since the working valve device 3 has a part corresponding to the working valve housing formed in the neck 5d of the housing 5, the working valve device 3 itself can be reduced in size and weight, and can be easily removed. . As shown in FIG.
- a closing lid 9 for sealingly closing the periphery of the opening 5b after removing the working valve device 3 is detachably attached, and is attached to the flange 5e of the open end 5c of the neck 5d.
- the annular blocking ring 40 is attached in the circumferential direction by a plurality of fastening members 41.
- a sealing member 4 for sealing a perforated portion of the fluid pipe 1 is provided.
- the casing 5 constituting the fluid control device is externally fitted in a sealed manner.
- the housing 5 has a divided structure including a plurality of divided bodies.
- the housing 5 is mainly configured by a first divided body 51 constituting an upper side and a second divided body 52 constituting a lower side. I have. Further, the first divided body 51 and the second divided body 52 are joined in a sealed state by the fastening member 2 composed of a bolt and a nut.
- the first divided body 51 of the housing 5 includes a pipeline housing portion 5a extending in the pipeline direction along the fluid pipe 1 and a pipeline housing portion 5a. And a tubular neck 5d having an open end 5c opening upward and a side opening 5b, and is formed in an inverted T-shape when viewed from the front. Is formed. End faces 5u, 5u extending in a circular arc shape in the circumferential direction and flat in a direction orthogonal to the pipeline are formed at both ends of the pipeline casing 5a in the pipeline direction.
- the second divided body 52 of the housing 5 is formed of a pipe housing 5A extending in the pipe direction along the fluid pipe 1. At both ends in the pipe direction of the pipe housing 5A, end faces 5U, 5U extending in a circular arc shape in the circumferential direction and flat in the pipe orthogonal direction are substantially the same as the end faces 5u, 5u of the first divided body 51. It is formed in one.
- the movement preventing fitting 90 as the movement preventing means of the present embodiment is attached to the fluid pipe 1. Fit outside.
- the movement preventing fitting 90 has a divided structure including a plurality of dividing tools.
- the movement preventing fitting 90 mainly includes a first dividing tool 91 forming the upper side and a second dividing tool 92 forming the lower side. ing.
- the first dividing tool 91 and the second dividing tool 92 are fastened by the fastening member 6 composed of a bolt and a nut with such a fastening force as to prevent relative movement between them.
- connection fitting 95 connects the first divided body 51 of the housing 5 and the first divided body 91 of the movement prevention metal fitting 90 and moves with the second divided body 52 of the housing 5. It is provided in a pair of upper and lower parts so as to connect the second metal member 92 of the prevention metal member 90.
- Each of the connection fittings 95 includes a plate-like bridging piece 96 that is bridged in the pipe direction between the first divided body 51 (the second divided body 52) and the first divided body 91 (the second divided body 92).
- connection fitting 95 is a nut constituting the fastening member 2 for fastening the first divided body 51 and the second divided body 52, and the first dividing tool 91 and the second divided body. It may be arranged outside the nut constituting the fastening member 6 for fastening with the tool 92, or the mounting position of the connection fitting 95 may be the position of the nut constituting the fastening member 2 and the nut constituting the fastening member 6.
- An inner position that is, a position in contact with a flange for connecting the first divided member 51 and the second divided member 52 and a flange for connecting the first divided member 91 and the second divided member 92 to each other. May be.
- a spacer 99 made of a cylindrical body having a smaller diameter than the through hole and a larger diameter than the connection bolt 97 is provided in a through hole formed in a flange for connecting the 92 to each other or in a through hole of the bridge piece 96.
- the first divided body 51 for inserting the fastening member 2 a through hole formed in the flange of the second divided body 52, and the first divider 91 for inserting the fastening member 6.
- a cylindrical spacer is provided in a through hole formed in the flange of the second divider 92.
- the length of a portion inserted into the through hole of the spacer 99 is, for example, a through hole arranged substantially coaxially in the vertical direction of a flange for connecting the first divided body 51 and the second divided body 52 to each other. The length may be such that the plurality of through holes can be inserted at the same time.
- the movement preventing fittings 90, 90 are attached to the end faces 5u, 5u of the first divided body 51 and the end faces 5u, 5u of the second divided body 52 of the housing 5. They may be arranged so as to be in contact with each other to prevent movement.
- the inner peripheral surfaces of the first divider 91 and the second divider 92 constituting the movement prevention metal fitting 90 are provided on the inner peripheral surface, for example, in the same manner as a locking ridge 120b shown in FIG.
- a plurality of locking protrusions are provided, and the locking protrusions cut into the outer surface of the fluid pipe 1.
- the locking ridge may extend in the circumferential direction and may be provided in a plurality in the axial direction.
- the locking ridge may have a spiral shape, a mesh shape, a lattice shape, or a specially provided locking ridge. You don't have to.
- a rubber plate as an anti-slip material may be attached to substantially the entire inner peripheral surface of the first split tool 91 and the second split tool 92 constituting the movement prevention metal fitting 90. By doing so, the movement preventing fitting 90 is held at the external fitting position without moving relative to the outer surface of the fluid pipe 1.
- an anti-slip material for example, a plurality of small rubber materials may be stuck and attached, or the divider itself may be made of a material such as a resin having low lubricity.
- the movement preventing fittings 90 are provided at positions abutting or approaching on both sides of the casing 5 in the pipe direction, even when a load described later occurs in the casing 5, the pipes can be connected. Movement in the road direction is prevented.
- the movement prevention metal fitting 90 provided on the downstream side of the casing 5 in the pipe direction contacts the end face 5u of the first divided body 51 of the casing 5, the movement preventing metal fitting 90 is located on the downstream side of the first divided body 51.
- the first divided body 51 can be prevented from moving so as to stay at the original position against the external force acting on the first divided body 51.
- the movement prevention fitting 90 provided on the upstream side of the casing 5 in the pipe direction is connected to the casing 5 via the connection fitting 95, it acts on the first divided body 51 on the downstream side.
- the first divided body 51 can be supported so as to remain at the original position against external force.
- the movement preventing fitting 90 for preventing the movement of the casing 5 in the pipe direction is provided in the fluid pipe 1, the flow control valve 10 is closed, and the pressure of the fluid in the pipe acts on the casing 5. Even so, since movement of the housing 5 can be prevented by the movement prevention metal fitting 90, high fluid controllability can be maintained.
- the plug 11 When the plug 11 is moved upward from the closed state of the flow control valve 10 and the fluid pipe 1 is opened, the load of the plug 11 pressed to the downstream side at the time of closing is eliminated, and the plug is closed. Due to the elastic restoring force of the elastic material constituting the body 11, the first divided body 51 acts in a direction to return to the original upstream position.
- a movement prevention fitting 100 is fitted around the fluid pipe 1 as movement prevention means of the first modification.
- the movement preventing bracket 100 has a divided structure including a plurality of dividing tools.
- a virtual inclined surface C inclined approximately 45 degrees with respect to a horizontal plane is used as a boundary.
- the first splitting tool 101 and the second splitting tool 102 are fastened by the fastening member 6 composed of a bolt and a nut with such a fastening force that relative movement between them is prevented.
- connection fitting 105 connects the first divided body 51 and the second divided body 52 of the housing 5 to the first divided tool 101 of the movement prevention metal fitting 100, and The first divided body 51 and the second divided body 52 are provided in a pair in the circumferential direction so as to connect to the second divided member 102 of the movement preventing bracket 100.
- Each connection fitting 105 is provided with an installation bolt 106 that is bridged in the pipe direction between the first divided body 51, the second divided body 52, and the flange 103 fixed to the first divided body 101 (the second divided body 102).
- a connecting nut 107 which is screwed to the erection bolt 106 and engages with the flange 103; and a first divided body 51 and a second divided body which are engaged with an engagement portion 106a formed on the head of the erection bolt 106. And a connection bolt 108 inserted into and fastened to the bolt hole 52.
- the housing 5 and the movement prevention fittings 100 can be closely contacted in the pipe direction.
- the contact or proximity state can be adjusted steplessly.
- the movement preventing means of the second modification is configured by a movement preventing metal fitting 90 fitted externally to the fluid pipe 1 and an engaging portion 110 provided on the housing 5.
- the engaging portions 110 are formed at both ends of the flange 51a for the fastening member 2 of the first divided body 51 and at both ends of the flange 52a of the second divided body 52.
- 111 comprises a convex portion 112 which engages in the pipeline direction.
- the downstream side of the casing 5 in the pipe direction is applied.
- the concave portion 111 formed in the first divided body 51 is engaged with the convex portion 112 of the second divided body 52. This makes it possible to prevent the movement of the first divided body 51 against the external force acting on the first divided body 51 in the pipe direction due to the protrusion 112.
- the movement prevention fitting 90 and the connection fitting 95 can be omitted, and the second divided body 52 can be used as the movement prevention fitting.
- the inner peripheral surface of the second divided body 52 may be provided with one or more locking projections provided on the inner peripheral surface of the movement prevention fitting 90 described above. Further, instead of the engagement between the concave portion 111 and the convex portion 112, the engagement may be performed by using the spacer 99 described above.
- the movement preventing means of the third modification is configured by the movement preventing metal fittings 120 fitted to the fluid pipe 1 on both sides of the casing 5 in the pipe direction.
- the movement prevention metal fitting 120 includes an engagement recess 120a that engages with the bulging portion 5v that bulges in the outer diameter direction at the end of the first split body 51 of the housing 5 in the pipe direction,
- a plurality of locking projections 120b are formed in the axial direction on the inner peripheral surface of the metal fitting 120 along the circumferential direction. It is to be noted that the locking protrusion 120b may be provided singly or may not be provided.
- the upstream side of the casing 5 in the pipe direction is applied.
- the engagement concave portion 120a of the movement prevention metal fitting 120 provided on the first portion 51 locks the bulging portion 5v of the first divided body 51, and the locking ridge 120b cuts into the outer peripheral surface of the fluid pipe 1, whereby this movement is performed.
- the first metal member 51 can be prevented from moving against the external force acting on the first metal member 51 in the pipe direction.
- the movement preventing means of Modification 4 is constituted by movement preventing fittings 130 fitted to the fluid pipe 1 on both sides of the casing 5 in the pipe direction. More specifically, the movement preventing fitting 130 includes an engagement recess 130a that engages with the bulging portion 5v that bulges in the outer diameter direction at an end of the first divided body 51 of the housing 5 in the pipe direction, and A locking member 131 provided in a concave portion 130b formed on the inner surface of the metal fitting 130.
- the upstream side of the casing 5 in the pipe direction is applied.
- the engaging concave portion 130a of the movement preventing bracket 130 provided on the first portion locks the bulging portion 5v of the first divided body 51
- the locking member 131 tilts clockwise in the concave portion 130b as shown in FIG.
- the tip claw 131a formed on the inner diameter side cuts into the outer peripheral surface of the fluid pipe 1 (see the dotted line portion in the figure), so that the movement preventing bracket 130 opposes the external force acting on the first divided body 51 in the pipe direction.
- the first divided body 51 can be prevented from moving.
- a push bolt for pushing the locking member 131 may be provided in the movement prevention fitting 130.
- the inner side of the open end 5c and the outer side sealingly surrounding the open end 5c are made to have the same pressure.
- the end 5c can be cut off at the same time. Therefore, even if the fluid pipe 1 has a relatively large diameter, the pressing force required to install the flow control valve 10 can be reduced to accurately install the flow control valve 10 at a desired position.
- the fulcrum when inserting 11 into the hole 1b of the fluid pipe 1 becomes reliable, the positional accuracy of the valve body 11 can be improved, the controllability of the fluid in the pipe can be improved, and the operation of the valve body 11 is required.
- the light and small working valve device 3 can be easily attached and detached.
- the housing 5 has a divided structure in which the fluid pipe 1 is externally fitted in a hermetically sealed manner.
- the hole 1b of the fluid pipe 1 is formed by being pierced by a piercing machine 7, so that the fluid pipe 1 can flow continuously into the existing fluid pipe 1.
- the valve body 11 can be inserted by piercing in this state.
- the opening 5b for attaching and detaching the working valve device 3 is provided in the neck 5d of the housing 5 so that the mounting position of the working valve device 3 can be brought closer to the fluid pipe 1, so that the piercing stroke is shortened, The displacement of the drilling position can be minimized, and at the same time, the size, weight, and cost of construction equipment such as the drilling machine 7 and the work valve device 3 can be reduced.
- the front end of the valve housing 12 of the flow control valve 10 becomes the neck 5d.
- the sealing can be performed by the annular sealing member 21, so that the opening 5b and the open end 5c can be simultaneously shut off in this sealed state. Therefore, the pressing force required for installing the flow control valve 10 can be reduced and the flow control valve 10 can be accurately installed at a desired position.
- the hole 1b is pierced by the piercing means in the fluid pipe 1 in the housing 5, and the plug 11 (valve) of the flow control valve 10 is inserted into the hole 1b.
- the hole of the fluid pipe of the present invention is not limited to this, and may be, for example, a hole such as a branch hole formed in advance in a T-tube as a fluid pipe, or a flange formed in the fluid pipe. Or a gate valve joined in a receiving manner.
- the plate-shaped closing lid 9 is hermetically connected to the opening 5b of the housing 5 after the installation of the flow control valve 10 and the removal of the working valve device 3.
- the present invention is not limited to this.
- a closing lid 45 as a holding member according to the present invention has a flat covering portion that covers the opening 5b in a sealing manner. 46, and an external fitting portion 47 which is connected thereto and is bifurcated into a substantially U-shape in plan view so as to be externally fittable along the peripheral surface of the valve housing 12 of the control valve 10.
- a concave groove 13e for fitting the outer fitting portion 47 to the outer peripheral surface of the peripheral side portion 13 of the body 12 may be provided.
- the opening 5b communicating with the inside of the neck 5d is used to seal the opening 5b of the housing 5 and, at the same time, the outer fitting portion 47 of the closing lid 45 to the peripheral side of the valve housing 12. Since it can be fitted to the concave groove 13e of the thirteen, the flow control valve 10 can be easily held and the flow control valve 10 can be prevented from falling out of the housing 5. Further, by using the closing lid 45, the push bolt 5f for temporary fixing provided on the housing 5 of the embodiment can be omitted, and the structure can be simplified.
- the concave groove 13e of the peripheral side portion 13 of the valve housing 12 may be formed endlessly over the entire circumference of the valve housing 12, but as in the present modified example, the concave groove 13e is formed over substantially half the circumference. With this arrangement, the distal end portion 47a of the outer fitting portion 47 comes into contact with the peripheral end portion 13f of the concave groove 13e, whereby the flow control valve 10 can be positioned in the circumferential direction.
- the deforming portion 21b that allows the elastic deformation of the sealing member 21 is formed in a substantially bulb-shaped cross-sectional shape that swells smoothly in the radial direction inside and outside and the tip direction.
- the present invention is not limited to this.
- a deformed portion 23b of the sealing member 23 has a bulging portion 23c bulging inward and outward in a radial direction. May have a protruding portion 23d protruding in the distal direction, and a concave portion 23e formed in a concave shape over the protruding portion 23d.
- the bulging portion bulging in the inner and outer radial directions.
- the pressure of the fluid in the pipe is applied to the surface of the concave portion 23e formed in a concave shape over the projection 23d and the protrusion 23d, and the bulging portion 21c is formed on the inner peripheral surfaces 5h and 5j of the neck 5d and the concave portions on the peripheral side portion 13. 13b to obtain a lip seal effect close to 13b. , It is possible to enhance the sealing performance.
- the deformed portion 24b of the sealing member 24 is formed in a substantially circular shape in cross section having a cutout portion 24e on its outer peripheral portion. In this manner, a large elastic deformation allowance in the outer radial direction can be taken, so that the sealing function between the deformed portion 24b after the elastic deformation and the inner peripheral surface of the neck portion can be enhanced.
- the flow control valve 10 includes, as its valve body, the plug 11 that passes through the hole 1b of the fluid pipe 1 and is in close contact with the inner peripheral surface 1c, but is not limited thereto. Any form of valve body can be applied as long as the fluid in the pipe can be controlled.
- the hole is drilled with the hole saw 72a having a smaller diameter than the fluid pipe 1, but the invention is not limited to this. Cut a part of the fluid pipe, remove the section, and install a plug that seals the inner peripheral surface of the housing as a valve seat or a flow control valve that has an inner valve box with a built-in valve body in a non-disruptive flow state You may do so.
- the communication opening 17 and the communication opening 27 are connected to each other by the connection hose 25 to have the same pressure.
- the present invention is not limited to this.
- a check valve may be connected to the through hole, the check valve may be opened when the flow control valve is inserted, and closed after insertion to take the same pressure and simultaneously release air.
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Abstract
Description
流体管に密封状態で設置される筐体と、前記筐体内にて形成された前記流体管の孔部に挿入可能な弁体及び弁筐体を備えた制流弁とを少なくとも有する流体制御装置を不断流状態で設置する設置方法であって、
前記筐体の首部に形成された開口部に、該筐体の内部を開閉可能に仕切る作業弁体を備えた作業弁装置を取付け、
前記首部に形成された開放端部を密封可能に囲繞した状態で前記作業弁体を開放し、
前記開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、前記筐体の内部に密封状態で連通する前記制流弁を、前記開放端部から、前記制流弁の前記弁筐体の先端が前記首部の前記開口部を超えた設置位置まで挿入することで、前記設置位置にて前記弁筐体の周面と前記首部の周面との間を環状の密封部材により密封することを特徴としている。
この特徴によれば、開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、制流弁の弁筐体の先端が首部内の開口部を超えた設置位置にて、環状の密封部材により密封できるため、この密封状態で開口部及び開放端部を同時に遮断することができる。したがって、流体管が比較的大口径であっても、この制流弁を設置するために要する押圧力を低減して所期の位置に正確に設置でき、且つ制流弁の弁体が流体管の孔部に挿入する際の支点が確実になり、弁体の位置精度を向上させ、管内流体の制御性を高めることができ、また弁体の操作を要することなく、軽量・小型化した作業弁装置を容易に着脱できる。
この特徴によれば、作業弁体により仕切られた筐体内部を連通させる際に、筐体内の空気を排出することができるため、筐体内部を管内流体で満たすことができる。
この特徴によれば、既設の流体管に不断流状態で穿孔により孔部を形成し、弁体を挿入することができる。特に、筐体の首部に作業弁装置を着脱するための開口部を有して、作業弁装置の取付位置を流体管に近づけることができるため、穿孔ストロークが短くなり、穿孔の位置ずれを極小化でき、併せて、穿孔機や作業弁装置などの施工用機材の小型化、軽量化、コストダウンができる。
この特徴によれば、制流弁を閉塞することで筐体に管内流体の圧力が作用しても、移動防止手段によって筐体の移動を防止できるため、流体の高い制御性を維持できる。また、移動防止手段を穿孔の際に設置することで、孔部の位置ずれを抑制できる。
この特徴によれば、作業弁体で仕切られた筐体の内部を互いに連通させ同圧にした状態で、制流弁の弁筐体の先端が首部内の開口部を超えた設置位置にて、環状の密封部材により密封できるため、この密封状態で開口部及び開放端部を同時に遮断することができる。したがって、この制流弁を設置するために要する押圧力を低減して所期の位置に正確に設置できる。
この特徴によれば、首部を利用することで、連通開口部の形成箇所を設計する自由度が高く、作業弁体により仕切られた筐体の内部を連通させる作業を容易に行うことができる。
この特徴によれば、筐体内を仕切る作業弁体に近い作業弁筐体に、連通開口部が設けられていることで、連通路を短く構成できる。
この特徴によれば、首部内に連通する開口部を利用して、筐体に設置された制流体を保持する保持部材を容易に取り付けできるばかりか、この保持部材によって、開口部を密封することができる。
流体管に密封状態で設置される筐体と、前記筐体内にて形成された前記流体管の孔部に挿入可能な弁体及び弁筐体を備えた制流弁とを少なくとも有する流体制御装置を不断流状態で設置する設置装置であって、
前記筐体の首部に形成された開口部に取り付けられ、該筐体の内部を開閉可能に仕切る作業弁体を備えた作業弁装置を有し、
前記首部に形成された開放端部を密封可能に囲繞した状態で前記作業弁体を開放し、
前記開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、前記筐体の内部に密封状態で連通する前記制流弁を、前記開放端部から、前記制流弁の前記弁筐体の先端が前記首部の前記開口部を超えた設置位置まで挿入することで、前記設置位置にて前記弁筐体の周面と前記首部の周面との間を密封する環状の密封部材を有することを特徴としている。
この特徴によれば、開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、制流弁の弁筐体の先端が首部内の開口部を超えた設置位置にて、環状の密封部材により密封できるため、この密封状態で開口部及び開放端部を同時に遮断することができる。したがって、流体管が比較的大口径であっても、この制流弁を設置するために要する押圧力を低減して所期の位置に正確に設置でき、且つ制流弁の弁体が流体管の孔部に挿入する際の支点が確実になり、弁体の位置精度を向上させ、管内流体の制御性を高めることができ、また弁体の操作を要することなく、軽量・小型化した作業弁装置を容易に着脱できる。
この特徴によれば、制流弁を閉塞することで筐体に管内流体の圧力が作用しても、移動防止手段によって筐体の移動を防止できるため、流体の高い制御性を維持できる。また、移動防止手段を穿孔の際に設置することで、孔部の位置ずれを抑制できる。
1b 孔部
1c 内周面
3 作業弁装置
5 筐体
5b 開口部
5c 開放端部
5d 首部
5e フランジ部
5f 押しボルト
5h 内周面
5j 内周面
7 穿孔機
8 排出機
9 閉塞蓋
10 制流弁
11 栓体(弁体)
12 弁筐体
13 周側部
14 軸部材
16 収容筒
17 連通開口部
18 開閉プラグ
21 密封部材
21b 変形部
23 密封部材
24 密封部材
25 接続ホース
26 取付治具
27 連通開口部
28 空気抜き孔
29 排出ホース
31 作業弁体
32 収容部材
34 軸部材
40 閉塞リング
45 閉塞蓋
46 被覆部
47 外嵌部
51 第1分割体
52 第2分割体
60 挿入機
61 延設棒
62 操作杆
63 挿入筒
71 取付フランジ筒
72 カッタ
73 進退機構
74 駆動モータ
81 取付フランジ板
83 フレキシブル筒
84 操作筒
85 排出管
90 移動防止金具(移動防止手段)
99 スペーサ
100 移動防止金具(移動防止手段)
110 係合部(移動防止手段)
120 移動防止金具(移動防止手段)
130 移動防止金具(移動防止手段)
Claims (10)
- 流体管に密封状態で設置される筐体と、前記筐体内にて形成された前記流体管の孔部に挿入可能な弁体及び弁筐体を備えた制流弁とを少なくとも有する流体制御装置を不断流状態で設置する設置方法であって、
前記筐体の首部に形成された開口部に、該筐体の内部を開閉可能に仕切る作業弁体を備えた作業弁装置を取付け、
前記首部に形成された開放端部を密封可能に囲繞した状態で前記作業弁体を開放し、
前記開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、前記筐体の内部に密封状態で連通する前記制流弁を、前記開放端部から、前記制流弁の前記弁筐体の先端が前記首部の前記開口部を超えた設置位置まで挿入することで、前記設置位置にて前記弁筐体の周面と前記首部の周面との間を環状の密封部材により密封することを特徴とする流体制御装置の設置方法。 - 前記作業弁体により仕切られた前記筐体の内部を互いに連通させるとともに、前記筐体内の空気を外部に放出することを特徴とする請求項1に記載の流体制御装置の設置方法。
- 前記筐体は、前記流体管を密封状に外嵌する分割構造であり、前記流体管の前記孔部は穿孔機により穿孔されて形成されることを特徴とする請求項1または2に記載の流体制御装置の設置方法。
- 前記筐体の移動を防止する移動防止手段を前記流体管に設置することを特徴とする請求項1ないし3のいずれかに記載の流体制御装置の設置方法。
- 前記作業弁体により仕切られた前記筐体の内部を互いに連通させ同圧にした状態で、前記作業弁体を開放することを特徴とする請求項1ないし4のいずれかに記載の流体制御装置の設置方法。
- 前記作業弁体により仕切られた前記筐体の内部を互いに連通させるための連通開口部が、前記首部に設けられていることを特徴とする請求項1ないし5のいずれかに記載の流体制御装置の設置方法。
- 前記作業弁体により仕切られた前記筐体の内部を互いに連通させるための連通開口部が、前記作業弁装置の作業弁筐体に設けられていることを特徴とする請求項1ないし6のいずれかに記載の流体制御装置の設置方法。
- 前記首部の開口部に、前記筐体に設置された前記制流体を保持する保持部材を密封状に取り付けることを特徴とする請求項1ないし7のいずれかに記載の流体制御装置の設置方法。
- 流体管に密封状態で設置される筐体と、前記筐体内にて形成された前記流体管の孔部に挿入可能な弁体及び弁筐体を備えた制流弁とを少なくとも有する流体制御装置を不断流状態で設置する設置装置であって、
前記筐体の首部に形成された開口部に取り付けられ、該筐体の内部を開閉可能に仕切る作業弁体を備えた作業弁装置を有し、
前記首部に形成された開放端部を密封可能に囲繞した状態で前記作業弁体を開放し、
前記開放端部の内部側と該開放端部を密封可能に囲繞した外部側とが同圧にされた状態で、前記筐体の内部に密封状態で連通する前記制流弁を、前記開放端部から、前記制流弁の前記弁筐体の先端が前記首部の前記開口部を超えた設置位置まで挿入することで、前記設置位置にて前記弁筐体の周面と前記首部の周面との間を密封する環状の密封部材を有することを特徴とする流体制御装置の設置装置。 - 前記筐体の移動を防止する移動防止手段が前記流体管に設置されていることを特徴とする請求項9に記載の流体制御装置の設置装置。
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SG11202101270TA SG11202101270TA (en) | 2018-09-05 | 2019-07-18 | Installation method and installation device for fluid control device |
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AU2019335644A AU2019335644B2 (en) | 2018-09-05 | 2019-07-18 | Installation method and installation device for fluid control device |
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PH12021550284A PH12021550284A1 (en) | 2018-09-05 | 2021-02-05 | Installation method and installation device for fluid control device |
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