WO2005019709A1 - 弁装置 - Google Patents
弁装置 Download PDFInfo
- Publication number
- WO2005019709A1 WO2005019709A1 PCT/JP2004/010628 JP2004010628W WO2005019709A1 WO 2005019709 A1 WO2005019709 A1 WO 2005019709A1 JP 2004010628 W JP2004010628 W JP 2004010628W WO 2005019709 A1 WO2005019709 A1 WO 2005019709A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- port
- inlet
- outlet
- housing
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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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
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/022—Devices for relieving the pressure on the sealing faces for lift valves using balancing surfaces
Definitions
- the present invention relates to a valve device, and more particularly to a valve device such as a motor-operated solenoid valve used under high-pressure conditions such as a supercritical cycle using carbon dioxide refrigerant.
- valve device such as an electro-magnetic valve, an electric valve, or the like that performs flow path switching, flow control, and the like
- a valve that has a valve port formed in a valve housing and opens and closes the valve port by moving in the axial direction in the valve housing.
- the valve body has a valve shaft part supported on one side so as to be slidable in the axial direction from the valve housing, and the valve shaft part drives an opening and closing of the valve body, such as an electromagnetic solenoid or an electric motor.
- An inlet-side joint port and an outlet-side joint port are opened on the outer surface of the valve housing, and one side of the valve port is connected to the inlet-side joint through an inlet-side internal passage formed in the valve housing.
- There is a valve that communicates with a port, and the other side of the valve port communicates with the outlet-side joint port through an outlet-side internal passage formed in the valve housing for example, Patent Document 1).
- Patent Document 1 JP-A-2000-193101
- the present invention has been made to solve the above-described problems, and it is possible to avoid backflow without being restricted by piping and without bending primary-side piping, and to reduce dynamic pressure.
- An object of the present invention is to provide a valve device that does not cause malfunction due to the valve.
- a valve device has an inlet-side joint port and an outlet-side joint port opened on an outer surface of a valve housing, and the valve port is formed in the valve housing.
- the valve stem is connected to driving means for opening and closing the valve body, and one side of the valve port communicates with the inlet side joint port through an inlet side internal passage formed in the valve housing.
- valve device in which the other side of the valve port communicates with the outlet-side joint port through an outlet-side internal passage formed in the valve housing, the inlet-side internal passage is connected to the inlet-side joint.
- the port As a force is exerted on the side of the valve shaft portion of the front Kibentai it is characterized in that it comprises a folding bend in the valve housing.
- an inlet-side joint port and an outlet-side joint port are opened on the outer surface of the valve housing, and the first valve port and the second valve port are the same in the valve housing.
- a first valve portion and a second valve port that are formed on one axis and are spaced apart in the axial direction and that open and close the first valve port by axial movement in the valve housing are opened and closed
- each of the first valve port and the second valve port is connected to the outlet side joint port by an outlet side internal passage formed in the valve housing and the valve body.
- the pressure at the inlet-side joint port acts between the first valve portion and the second valve portion of the valve body. It is characterized by including a bent portion so that
- the inlet-side joint port and the outlet-side joint port are opened on the outer surface of the valve housing, and the first valve port and the second valve port are the same in the valve housing.
- a first valve portion and a second valve port that are formed on one axis and are spaced apart in the axial direction and that open and close the first valve port by axial movement in the valve housing are opened and closed
- valve device a double-seat valve
- the pressure of the inlet-side joint port is increased by the valve. It has a bypass passage so as to act between the first valve portion and the second valve portion of the body.
- the inlet-side internal passage includes a bent portion in the valve housing, so that the inlet-side internal passage is required in the primary-side piping to avoid backflow.
- the internal passage in the valve housing is responsible for the bent portion of the valve housing, which prevents backflow. This prevents the dynamic pressure from acting on the distal end of the valve body when the valve is opened. It is possible to prevent the axial center of the body from tilting and to prevent malfunction from occurring.
- the provision of the bypass passage allows the bypass passage to handle a bent portion required for the pipe on the primary side in order to avoid backflow. This can prevent the dynamic pressure from acting on the distal end of the valve body when the valve is opened, and prevent the valve body from tilting to prevent malfunction. Can be avoided.
- FIG. 1 is a longitudinal sectional view showing Embodiment 1, which is one embodiment in which a valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 2 is a longitudinal sectional view showing Embodiment 2 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 3 is a sectional view taken along line AA of FIG. 2.
- FIG. 4 is a longitudinal sectional view showing Embodiment 3 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 5 is a longitudinal sectional view showing Embodiment 4 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 6 is a longitudinal sectional view showing Embodiment 5 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 7 is a longitudinal sectional view showing Embodiment 6 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 8 is a longitudinal sectional view showing Embodiment 7 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 9 is a longitudinal sectional view showing Embodiment 8 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 10 is a longitudinal sectional view showing Embodiment 9 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 11 is a longitudinal sectional view showing Embodiment 9 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 12 is a longitudinal sectional view showing Embodiment 10 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 13 is a longitudinal sectional view showing Embodiment 11 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 14 Embodiment 1, which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- FIG. 2 is a longitudinal sectional view showing 2.
- FIG. 15 is a sectional view taken along line BB of FIG. 14.
- FIG. 16 is a longitudinal sectional view showing Embodiment 13 which is one embodiment in which the valve device according to the present invention is applied to an electric single-seat valve.
- FIG. 17 A hot water supply cycle using C ⁇ refrigerant to which a double-seat valve and a single-seat valve according to the present invention are applied.
- FIG. 21 is a block diagram showing a fourteenth embodiment which is one embodiment of the device.
- FIG. 1 shows a first embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- the double-seat valve according to the first embodiment is indicated by reference numeral 10 as a whole.
- the double-seat valve 10 has a block-shaped valve housing 11.
- the valve housing 11 is formed with an inlet-side joint port 12 opened on the lower bottom surface (outer surface) of the valve housing 11 and an outlet-side joint port 13 opened on the right side (outer surface) of the valve housing 11.
- An inlet joint (lower joint) 14 is connected to the inlet-side joint port 12, and an outlet joint (lateral joint) 15 is connected to the outlet-side joint port 13.
- a lower valve chamber 16 and an upper valve chamber 17 are formed vertically.
- a first valve port 18 communicating with an outlet-side vertical internal passage 24 to be described later is formed in a lower bottom surface portion of the lower valve chamber 16, and a first valve port 18 communicating with an upper valve chamber 17 is formed on an upper surface portion of the lower valve chamber 16.
- Two valve ports 19 are formed.
- the first valve port 18 and the second valve port 19 are the same They are concentrically arranged on the axis with an interval (corresponding to the height dimension of the lower valve chamber 16) in the axial direction, and are opposed to each other.
- a valve shaft guide member 20 is fixed to the upper part of the valve housing 11 by caulking.
- the valve shaft guide member 20 has a bearing hole 20A penetrating in the up-down direction (axial direction), and supports the valve shaft portion 33 of the valve body 30 slidably in the axial direction by the bearing hole 20A.
- the valve element 30 includes a lower first valve portion 31 that opens and closes the first valve port 18 and an upper second valve portion 32 that opens and closes the second valve port 19, which are coaxial.
- the first valve port 18 and the second valve port 19 are simultaneously opened and closed by the axial movement.
- the valve stem 33 is provided further above the second valve 32.
- each of the first valve port 18 and the second valve port 19 is connected through a lower valve chamber 16 to an inlet-side lateral internal passage 21 formed in the valve housing 11 in the form of a lateral hole.
- an inlet-side vertical internal passage 22 communicating with the inlet-side joint port 12.
- the inlet side horizontal internal passage 21 is a drill hole drilled from the left side surface of the valve housing 11, and the lower valve chamber 16 is also formed by the drill hole. The open end of the drill hole is closed by a plug 23.
- the inlet-side vertical internal passage 22 is a drill hole drilled from the lower bottom surface of the valve housing 11, and communicates with the inlet-side joint port 12 on the lower side and communicates with the inlet-side vertical internal passage 22 at the upper end. .
- a hook-shaped bent portion is formed by the inlet-side horizontal internal passage 21 and the inlet-side vertical internal passage 22.
- the bent portion connects the lower inlet-side joint port 12 to the lower valve chamber 16 via the lower valve chamber 16.
- Each of the first valve port 18 and the second valve port 19 is in communication with one side.
- the inlet-side joint port 12 and the inlet-side vertical internal passage 22 are located at positions shifted to the left from the first and second valve ports 18 and 19.
- the other side of the first valve port 18 communicates with the outlet-side joint port 13 through the outlet-side vertical internal passage 24 and the outlet-side horizontal internal passages 25, 26 formed by the drill housing in the valve housing 11. ing.
- the outlet-side vertical internal passage 24 and the outlet-side horizontal internal passages 25 and 26 also have hook-shaped bent portions.
- the other side of the second valve port 19 communicates with the upper valve chamber 17.
- the distal end (lower end) of the valve body 30 faces the outlet side vertical internal passage 24, and the valve body 30 has a drilled hole with a bottom from the distal end. A is bored, and a lateral hole 34B is radially penetrated in a portion where the valve body 30 is located in the upper valve chamber 17.
- the drill hole 34A and the lateral hole 34B form an internal passage 34 that connects the upper valve chamber 17 to the outlet-side vertical internal passage 24.
- a rotor case 41 of a stepping motor 40 is hermetically connected to an upper portion of the valve housing 11 by welding or the like.
- the rotor case 41 has a can shape having a cylindrical portion 41A and a hemispherical dome portion 41B integrally formed with the cylindrical portion 41A and closing the upper end of the cylindrical portion 41A. It is made of a magnetic material.
- a rotor 42 is rotatably arranged inside the cylindrical portion 41A of the rotor case 41.
- the outer periphery of the rotor 42 is multipolar magnetized.
- a cylindrical female screw member 43 is fixed to the center of the rotor 42.
- the female screw member 43 and the rotor 42 are relatively rotatably connected to the upper end 33A of the valve shaft 33 of the valve body 30 by a connecting member 44, a fixing bracket 45, a collar member 46, a spring 47 and the like.
- a hollow shaft-shaped male screw member 36 is fixed to the upper part of the valve shaft guide member 20.
- the male screw member 36 extends in the axial direction (vertical direction), and the valve shaft portion 33 of the valve body 30 passes through the hollow portion 36A.
- a male screw 36B is formed on the outer peripheral surface of the male screw member 36, and the male screw 36B is screw-engaged with a female screw 43A formed on the inner peripheral surface of the female screw member 43. The rotation of the rotor 42 is converted into a vertical linear motion by this screw engagement.
- a stator assembly 48 of the stepping motor 40 is positioned and mounted on an outer peripheral portion of the rotor case 41 by a locking piece 49.
- the stator assembly 48 has an outer case 50, upper and lower two-stage stator coils 51, a plurality of magnetic pole teeth 52, an electrical connector 53, and the like.
- a stopper holding rod 55 is fixed to the inside of the hemispherical dome portion 41B in a hanging manner.
- a spiral guide 56 is attached to the stopper holding rod 55, and a movable stopper 57 is engaged with the spiral guide 56.
- the movable stopper 57 is vertically kicked by a pin 58 attached to the rotor 42, and is guided by a spiral guide 56 with the rotation of the rotor 42 to move vertically while rotating.
- the movable stopper 57 contacts the stopper 59 at the lower end of the stopper holding rod 55 or the stopper 60 at the upper end of the spiral guide 56, so that the valve closes or the valve opens.
- the rotation of the rotor 42 in the opposite direction.
- the stepping motor 40 rotates the rotor 42 by energizing the stator coil 51.
- the rotational movement of the rotor 42 is converted into a linear movement by the screw engagement between the female screw 43A and the male screw 36B, and the rotor 42 moves in the rotor case 41 in the axial direction (vertical direction).
- the axial movement of the rotor 42 is transmitted to the valve body 30, and the valve body 30 moves in the axial direction (vertical direction).
- the first valve portion 31 of the valve element 30 adjusts the opening of the first valve port 18 and the second valve portion 32 of the valve element 30 opens the second valve port 19.
- the degree is adjusted, and substantially the same flow control is performed in both the first valve port 18 and the second valve port 19.
- the inlet joint 14 is a lower joint
- the outlet joint 15 is a horizontal joint
- the inlet-side internal passage includes the bent portion in the valve housing 11 between the inlet-side horizontal inner passage 21 and the inlet-side vertical inner passage 22, so that the primary-side inner passage is provided to avoid backflow.
- the internal passage (flow path) in the valve housing handles the bent part required for the piping, and even in a piping arrangement where there is a primary pipe in the lower vertical direction and a secondary pipe in the upper horizontal direction, Backflow can be avoided, and the pressure at the inlet-side joint port 12 acts between the first valve portion 31 and the second valve portion 32 of the valve body 30.
- valve body 30 is seated on the valve seat around the first valve port 18 on the distal end side.
- the dynamic pressure is prevented from acting on the (lower free end opposite to the side where the valve shaft 33 is located), the axial center of the valve body 30 is prevented from tilting, and no malfunction occurs.
- FIG. 2 FIG. 9 shows a modification of the first embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- parts corresponding to those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and description thereof is omitted.
- the bent portion of the inlet-side internal passage is formed by the inlet-side horizontal inner passage 61 formed by the boring carol and the inlet-side vertical inner passage 22 formed by the drill kale.
- the inlet-side horizontal internal passage 61 communicates with the lower valve chamber 116 formed by boring on one side in an overlapping manner, and communicates with the inlet-side vertical internal passage 22 on the lower side.
- the inlet joint 14 is a lower joint and the outlet joint 15 is a horizontal joint.
- the outlet-side joint port 13 is located at a higher position, and communicates with the upper valve chamber 17 by an outlet-side lateral internal passage 62 formed in the valve housing 11. .
- the outlet-side vertical internal passage 124 has a bottomed hole, and communicates with the upper valve chamber 17 through an internal passage 34 formed in the valve body 30.
- the inlet joint 14 is a lower joint and the outlet joint 15 is a horizontal joint.
- Example 4 shown in FIG. 5 is obtained by applying Example 3 of FIG. 4 to Example 2 of the boring type shown in FIG. 2 and FIG. Also in the fourth embodiment, the inlet joint 14 is a lower joint and the outlet joint 15 is a horizontal joint.
- an outlet-side joint port 113 is opened on the upper surface (outer surface) of the valve housing 11.
- the outlet-side joint port 113 communicates with the upper valve chamber 17 through an outlet-side vertical internal passage 63 and an outlet-side horizontal internal passage 64 formed in the valve housing 11.
- the outlet-side vertical internal passage 63 and the outlet-side horizontal internal passage 64 are both drill holes, and the outlet-side horizontal internal passage 64 is drilled from the right side of the valve housing 11 and the open end is closed by a plug 65. .
- the inlet-side joint port 12 and the outlet-side joint port 113 are both shifted to the right from the first and second valve ports 18 and 19 so that they are arranged on the same axis. is there . Accordingly, the inlet-side lateral internal passage 21 is bored from the right side of the valve housing 11, and the open end is closed by the plug 23.
- the inlet joint 14 is a lower joint
- the outlet joint 15 is an upper joint.
- an inlet-side joint port 112 is opened on the left side surface (outer surface) of the valve housing 11.
- the inlet side joint port 112 communicates with the lower valve chamber 16 through an inlet side internal passage 61 formed by a drill hole formed in the valve housing 11.
- the outlet port which is opened on the upper surface of the valve housing 11, and the joint port 113 are provided on the valve housing 11.
- An outlet-side vertical internal passage 67, an outlet-side horizontal internal passage 68, and an outlet-side vertical internal passage 24 formed by a drill hole communicate with the lower side of the first valve port 18.
- the outlet side horizontal internal passage 68 is a drill hole drilled from the right side surface of the valve housing 11, and has an open end closed by a plug 69.
- the inlet joint 14 is a horizontal joint
- the outlet joint 15 is an upper joint.
- an inlet-side joint port 213 is opened on the lower bottom surface (outer surface) of the valve housing 11.
- the outlet-side joint port 12 communicates with the lower side of the first valve port 18 through an outlet-side vertical internal passage 70, an outlet-side horizontal internal passage 71, and an outlet-side vertical internal passage 24 formed in the valve housing 11.
- the outlet-side vertical internal passage 70 and the outlet-side horizontal internal passage 71 are both drill holes, and the outlet-side horizontal internal passage 71 is drilled from the right side of the valve housing 11, and the open end is closed by a plug 72.
- both the inlet joint 14 and the outlet joint 15 are lower joints.
- an inlet-side joint port 212 is opened on the upper surface (outer surface) of the valve housing 11.
- the inlet-side joint port 212 communicates with the lower valve chamber 16 through an inlet-side vertical internal passage 73 and an inlet-side horizontal internal passage 74 formed in the valve housing 11.
- Both the inlet-side vertical internal passage 73 and the inlet-side horizontal internal passage 74 are drill holes, and the inlet-side horizontal internal passage 74 is drilled from the left side of the valve housing 11 and the open end is closed by a plug 75.
- both the inlet joint 14 and the outlet joint 15 are upper joints.
- the inlet-side internal passage or the outlet-side internal passage in the valve housing 11 since the inlet-side internal passage or the outlet-side internal passage in the valve housing 11 includes a bent portion, it is necessary to provide a pipe on the primary side or the secondary side to avoid backflow.
- the internal passage (flow passage) in the valve housing is responsible for the bent part that is formed, so that backflow can be avoided even in the case of a proper piping arrangement, and the pressure of the inlet side joint port 12 is It acts between the first valve part 31 and the second valve part 32.
- FIGS. 10 and 11 show Embodiment 9 in which both the inlet joint 14 and the outlet joint 15 are horizontal joints, and Embodiment 10 in which the inlet joint 14 is an upper joint and the outlet joint 15 is a lower joint.
- FIG. 12 shows Embodiment 11 in which the inlet joint 14 is an upper joint and the outlet joint 15 is a lateral joint, and FIG.
- FIG. 14 and FIG. 15 show Embodiment 12 which is another embodiment in which the valve device according to the present invention is applied to an electric double-seat valve.
- parts corresponding to those in FIG. 1 are denoted by the same reference numerals as those in FIG. 1, and description thereof will be omitted.
- the inlet joint 14 is provided below the valve housing 11, and the valve housing 11 is formed with an inlet-side vertical internal passage 76 and a lower valve chamber 216.
- a valve seat member 77 defining a first valve port 118 is fixed between the inlet-side vertical internal passage 76 and the lower valve chamber 216.
- the upper side of the first valve port 118 communicates with the lower valve chamber 216, and the lower side communicates with the outlet side vertical internal passage 224 formed by a bottomed hole formed in the valve seat member 77.
- the outlet side vertical internal passage 224 communicates with the upper valve chamber 17 by an internal passage 34 formed in the valve body 30.
- the inlet-side internal passage includes the bypass passage hole 78
- the bent portion required for the primary-side piping for the backflow avoidance causes the internal passage (flow passage) in the valve housing to be bent. )
- Backflow can be avoided even in a piping arrangement in which there is a primary pipe in the lower vertical direction and a secondary pipe in the upper horizontal direction. It acts between the first valve part 31 and the second valve part 32 of 30.
- valve 30 when the valve is opened, the valve 30 This prevents dynamic pressure from acting on the distal end (free lower end opposite to the side where the valve shaft 33 is located) seated on the valve part, prevents the axial center of the valve body 30 from tilting, and causes malfunction.
- Example 13 which does not cause
- FIG. 16 shows Embodiment 13 which is one embodiment in which the valve device according to the present invention is applied to an electric single-seat valve.
- the single-seat valve according to the thirteenth embodiment is indicated by reference numeral 300 as a whole.
- the single-seat valve 300 has a block-shaped valve housing 311.
- the valve housing 311 is formed with an inlet-side joint port 312 opened on the lower bottom surface (outer surface) of the valve housing 311 and an outlet-side joint port 313 opened on the right side surface (outer surface) of the valve housing 311. .
- An inlet joint (lower joint) 314 force is connected to the inlet-side joint port 312, and an outlet joint (lateral joint) 315 is connected to the outlet-side joint port 313.
- valve chamber 316 is formed inside the valve housing 311.
- a valve shaft guide member 320 is swaged and fixed to an upper portion of the valve housing 311.
- the valve shaft guide member 320 has a bearing hole 320A penetrating in the up-down direction (axial direction), and supports the valve shaft portion 333 of the valve body 330 slidably in the axial direction by the bearing hole 320A.
- the valve element 330 opens and closes the valve port 318 by axial movement.
- the valve stem 333 is provided above the valve element 330.
- valve port 318 One side of the valve port 318 is connected via a valve chamber 316 to an inlet-side horizontal internal passage 321 formed in the valve housing 311 and an inlet-side vertical internal passage 322 formed in a vertical hole. It communicates with hand port 312.
- the inlet-side lateral internal passage 321 is a drill hole drilled from the left side surface of the valve housing 311, and the lower valve chamber 316 is also formed by the drill hole. The open end of the drill hole is closed by a plug 323.
- the inlet side vertical internal passage 322 is a drill hole drilled from the lower bottom surface of the valve housing 311, communicates with the inlet side joint port 312 on the lower side, and communicates with the inlet side horizontal internal passage 321 at the upper end. I have.
- a hook-shaped bent portion is formed by the inlet-side horizontal internal passage 321 and the inlet-side vertical internal passage 322, and the bent portion connects the lower inlet-side joint port 312 to the lower valve chamber 316. Through And is in communication with one side of valve port 318.
- the inlet-side joint port 312 and the inlet-side vertical internal passage 322 are located at positions shifted to the left from the valve port 318.
- valve port 318 communicates with the outlet side joint port 313 through an outlet side vertical inner passage 324 and outlet side horizontal inner passages 325, 326 formed in the valve housing 311 by drilling.
- outlet-side vertical inner passage 324 and the outlet-side horizontal inner passages 325 and 326 also form hook-shaped bent portions.
- the valve stem 333 is drivingly connected to the rotor 42 of the stepping motor 40.
- the configuration of the stepping motor 40, the feed screw and the like by the male screw member 36 and the female screw member 43 is the same as that of the above-described embodiment, and therefore, the description thereof to avoid redundant duplication is omitted.
- the inlet joint 314 is a lower joint
- the outlet joint 315 is a horizontal joint.
- the inlet-side internal passage includes the inlet-side horizontal internal passage 321 and the inlet-side vertical internal passage 322 with a bent portion in the valve housing 311 so that the primary-side internal passage can be prevented from flowing backward.
- An internal passage (flow path) in the valve housing is to support the bent part required for piping, and there is a primary piping in the lower vertical direction and a secondary piping in the upper horizontal direction. However, backflow can be avoided, and the pressure at the inlet-side joint port 312 acts on the valve shaft 330 side of the valve body 330.
- the dynamic pressure acts on the distal end side (the free lower end opposite to the side where the valve shaft 333 is located) where the valve element 330 is seated on the valve seat around the valve port 318. Is prevented, and the axis of the valve element 330 is prevented from tilting, so that malfunction does not occur.
- FIG. 17 shows Embodiment 14 which is one embodiment of a hot water supply cycle apparatus using a CO refrigerant (carbon dioxide refrigerant) in which the above-described double-seat valve 10 or single-seat valve 300 is used. .
- CO refrigerant carbon dioxide refrigerant
- This hot water supply cycle device is a heat pump water heater, and includes a compressor 91, a gas cooler 92 corresponding to a condenser, an electric double seat valve 10 or a single seat valve 300, and a CO refrigerant circulation path including an evaporator 93. Is formed, and heat exchange is performed between the high-temperature CO refrigerant passing through the gas cooler 92 and the cold water to generate hot water.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Valve Housings (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/569,332 US20060273272A1 (en) | 2003-08-26 | 2004-07-26 | Valve device |
EP04770939A EP1659320A1 (en) | 2003-08-26 | 2004-07-26 | Valve device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003300962A JP2005069389A (ja) | 2003-08-26 | 2003-08-26 | 弁装置 |
JP2003-300962 | 2003-08-26 |
Publications (1)
Publication Number | Publication Date |
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WO2005019709A1 true WO2005019709A1 (ja) | 2005-03-03 |
Family
ID=34213860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/010628 WO2005019709A1 (ja) | 2003-08-26 | 2004-07-26 | 弁装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060273272A1 (ja) |
EP (1) | EP1659320A1 (ja) |
JP (1) | JP2005069389A (ja) |
KR (1) | KR20060133522A (ja) |
CN (1) | CN1836125A (ja) |
WO (1) | WO2005019709A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5022120B2 (ja) * | 2007-07-03 | 2012-09-12 | 株式会社不二工機 | 冷暖房システム用の電動弁 |
US8053941B2 (en) * | 2008-12-16 | 2011-11-08 | Nidec Motor Corporation | Encapsulated outer stator isolated rotor stepper motor valve assembly |
EP3062004B1 (en) * | 2009-01-22 | 2017-08-16 | Fujikoki Corporation | Motor-driven valve |
JP5316236B2 (ja) * | 2009-06-08 | 2013-10-16 | パナソニック株式会社 | 遮断弁流路ユニット |
CN101956830B (zh) * | 2009-07-17 | 2013-06-12 | 浙江三花股份有限公司 | 电子膨胀阀 |
JP5740586B2 (ja) * | 2010-11-18 | 2015-06-24 | 株式会社テージーケー | ステッピングモータ駆動式の制御弁 |
CN103512288B (zh) * | 2012-06-20 | 2016-07-06 | 浙江三花股份有限公司 | 一种电子膨胀阀 |
JP6105868B2 (ja) * | 2012-06-26 | 2017-03-29 | 株式会社不二工機 | 電動弁制御装置及び電動弁装置 |
WO2014023014A1 (zh) * | 2012-08-10 | 2014-02-13 | 浙江三花股份有限公司 | 一种电子膨胀阀 |
KR20220020401A (ko) * | 2018-08-17 | 2022-02-18 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | 전자 팽창 밸브 |
JP7324295B2 (ja) * | 2019-05-10 | 2023-08-09 | 浙江盾安人工環境股▲ふん▼有限公司 | 電子膨張弁のナットアセンブリ、電子膨張弁、及び制限部材の取付方法 |
JP7370833B2 (ja) | 2019-11-29 | 2023-10-30 | 株式会社鷺宮製作所 | 配管の接続構造、および、それを備える弁装置 |
DE102020124871A1 (de) * | 2019-12-04 | 2021-06-10 | ECO Holding 1 GmbH | Expansionsventil |
RU2749630C1 (ru) * | 2020-11-25 | 2021-06-16 | Общество с ограниченной ответственностью "Промавтоматика-Саров" | Устройство запорно-регулирующее с электромагнитом |
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GB525491A (en) * | 1939-02-22 | 1940-08-29 | Karl Baumann | Improvements in steam valves |
GB1007437A (en) * | 1961-01-30 | 1965-10-13 | Ass Elect Ind | Improvements relating to valves for controlling the flow of gases and/or vapours |
JPH0427470B2 (ja) * | 1982-10-27 | 1992-05-11 | Shisutemu Hoomuzu Kk | |
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JPH11294618A (ja) * | 1998-04-08 | 1999-10-29 | Fujikoki Corp | 電動流量制御弁 |
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JP2001182873A (ja) * | 1999-12-24 | 2001-07-06 | Ckd Corp | 超小形電磁弁の継手固定構造 |
JP5061508B2 (ja) * | 2006-06-06 | 2012-10-31 | ヤマハ株式会社 | オーディオミキサおよびプログラム |
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US566164A (en) * | 1896-08-18 | Pressure-regulator | ||
US2733041A (en) * | 1956-01-31 | Steam valve | ||
US208986A (en) * | 1878-10-15 | Improvement in valves | ||
US3392749A (en) * | 1966-08-18 | 1968-07-16 | American Meter Co | Pressure regulator with balancing piston |
US3873063A (en) * | 1973-11-01 | 1975-03-25 | Kieley & Mueller | Aspirated balance piston |
US4612954A (en) * | 1985-03-21 | 1986-09-23 | Sloan Valve Company | Pedal operated flush valve |
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2003
- 2003-08-26 JP JP2003300962A patent/JP2005069389A/ja not_active Withdrawn
-
2004
- 2004-07-26 EP EP04770939A patent/EP1659320A1/en not_active Withdrawn
- 2004-07-26 WO PCT/JP2004/010628 patent/WO2005019709A1/ja not_active Application Discontinuation
- 2004-07-26 US US10/569,332 patent/US20060273272A1/en not_active Abandoned
- 2004-07-26 KR KR1020067003818A patent/KR20060133522A/ko not_active Application Discontinuation
- 2004-07-26 CN CNA2004800236589A patent/CN1836125A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB525491A (en) * | 1939-02-22 | 1940-08-29 | Karl Baumann | Improvements in steam valves |
GB1007437A (en) * | 1961-01-30 | 1965-10-13 | Ass Elect Ind | Improvements relating to valves for controlling the flow of gases and/or vapours |
JPH0427470B2 (ja) * | 1982-10-27 | 1992-05-11 | Shisutemu Hoomuzu Kk | |
JPH05503754A (ja) * | 1990-01-30 | 1993-06-17 | アライド シグナル インコーポレイテッド | 二重ポペット弁用のタイミング制御装置 |
JPH11294618A (ja) * | 1998-04-08 | 1999-10-29 | Fujikoki Corp | 電動流量制御弁 |
JP2000356279A (ja) * | 1999-06-15 | 2000-12-26 | Fuji Koki Corp | 電動弁 |
JP2001108139A (ja) * | 1999-10-05 | 2001-04-20 | Saginomiya Seisakusho Inc | 蒸発圧力制御弁 |
JP2001182873A (ja) * | 1999-12-24 | 2001-07-06 | Ckd Corp | 超小形電磁弁の継手固定構造 |
JP5061508B2 (ja) * | 2006-06-06 | 2012-10-31 | ヤマハ株式会社 | オーディオミキサおよびプログラム |
Also Published As
Publication number | Publication date |
---|---|
EP1659320A1 (en) | 2006-05-24 |
CN1836125A (zh) | 2006-09-20 |
KR20060133522A (ko) | 2006-12-26 |
JP2005069389A (ja) | 2005-03-17 |
US20060273272A1 (en) | 2006-12-07 |
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