WO2021065090A1 - 高圧流体吐出装置 - Google Patents
高圧流体吐出装置 Download PDFInfo
- Publication number
- WO2021065090A1 WO2021065090A1 PCT/JP2020/023523 JP2020023523W WO2021065090A1 WO 2021065090 A1 WO2021065090 A1 WO 2021065090A1 JP 2020023523 W JP2020023523 W JP 2020023523W WO 2021065090 A1 WO2021065090 A1 WO 2021065090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure fluid
- discharge device
- fluid discharge
- valve body
- pilot
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 88
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 abstract 2
- 230000029142 excretion Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 9
- 238000005192 partition Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
- B05B12/088—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve the sensing element being a flexible member, e.g. membrane, diaphragm, bellows
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
-
- 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Definitions
- the present invention relates to a high-pressure fluid discharge device that discharges high-pressure fluid.
- a device that blows a high-pressure fluid such as compressed air is used in order to clean the surface of the work by removing metal chips adhering to the surface of the work in cutting.
- Japanese Unexamined Patent Publication No. 2014-83518 describes an intermittent air blow gun used for such purposes.
- this intermittent air blow gun when the operator grasps the switch lever, the on-off valve of the air ejection flow path is opened, and the air from the pressure air source is ejected from the discharge port. At the same time, a part of the air flowing through the air ejection flow path is supplied to the pilot valve, and when the pilot valve is opened, a part of the air from the pressure air source passes through the bypass flow path to the secondary side of the on-off valve. It is sent and the on-off valve closes.
- a pilot valve body is driven together with a movable iron core by energizing an electromagnetic coil, and a flow path of a pressure fluid and a pressure chamber separated from the flow path by a main valve body such as a diaphragm are provided.
- a pilot solenoid valve that drives the main valve body in the valve opening direction by creating a pressure difference between them is described. If such a solenoid valve is used as a high-pressure fluid discharge device, remote control is possible.
- the pilot type solenoid valve described in Japanese Patent No. 6429133 is a method (direct drive type) in which the pilot valve body facing the flow path is directly driven by energizing the electromagnetic coil, in order to cope with a large flow rate. Needs to increase the power supply. That is, in order to suppress the vibration of the main valve body and perform a stable opening / closing operation, it is necessary to provide a return spring having a strong urging force, an electromagnetic coil capable of supplying a large amount of electric power, and the like. Therefore, the device may become large.
- the present invention has been made against the background of such circumstances, and an object of the present invention is to provide a high-pressure fluid discharge device that can handle a large flow rate while being compact.
- the high-pressure fluid discharge device has a body in which a first flow path communicating with an input port and a second flow path communicating with an output port are formed, and a first body in cooperation with a valve seat provided on the body. It is provided with a diaphragm valve body that switches between communication and interruption of the flow path and the second flow path.
- the valve chamber and the pilot chamber connected to the first flow path are partitioned by a diaphragm valve body, and the diaphragm valve body is provided with a pilot passage connecting the valve chamber and the pilot chamber to communicate the pilot chamber and the discharge port. It is equipped with a pilot-type spool valve that switches between shutoff and shutoff.
- the high-pressure fluid discharge device According to the high-pressure fluid discharge device, a small amount of electric power is required to operate the pilot type spool valve that does not face the flow path, so that a large flow rate of high-pressure fluid can be discharged even though it is small.
- the high-pressure fluid discharge device is provided with a pilot-type spool valve that switches between communication and cutoff between the pilot chamber and the discharge port, it can be a high-pressure fluid discharge device that can handle a large flow rate even though it is small.
- FIG. 1 It is sectional drawing of the high pressure fluid discharge device which concerns on embodiment of this invention. It is a figure corresponding to FIG. 1 when the high pressure fluid discharge device of FIG. 1 is in a different operating state. It is a figure which shows the usage form which connected the tank to the high pressure fluid discharge device of FIG. It is a figure which shows the usage form which connected the linear pipe which has the same function as a tank to the high pressure fluid discharge device of FIG. It is a figure which shows the usage form which connected the bent-shaped pipe which has the same function as a tank to the high pressure fluid discharge device of FIG. It is a figure which shows the usage form which connected the filter to the high pressure fluid discharge device of FIG.
- the high-pressure fluid discharge device 10 includes a body 12 in which a flow path for a pressure fluid such as compressed air is formed therein, and a diaphragm valve body 14 housed inside the body 12. , A bonnet 16 disposed above the body 12 and a pilot spool valve 18 disposed above the bonnet 16.
- An input port 20 for introducing a pressure fluid such as compressed air into the body 12 is provided at the left end of the body 12, and a pressure fluid introduced into the body 12 is introduced at the right end of the body 12.
- An output port 22 for discharging to the outside is provided.
- a partition wall 24 is provided in the center of the body 12, and the flow path of the pressure fluid is divided into a first flow path 26 communicating with the input port 20 and a second flow path 28 communicating with the output port 22 by the partition wall 24. ing.
- a valve seat 24a on which the diaphragm valve body 14 is seated is provided at the upper end of the partition wall 24.
- the diaphragm valve body 14 has a thick main body portion 30 having a cylindrical shape, and a flange portion 32 that is thinner and more flexible than the main body portion 30. The outer peripheral edge of the flange portion 32 is sandwiched between the body 12 and the bonnet 16.
- the diaphragm valve body 14 can be seated on the valve seat 24a of the partition wall 24 on the bottom surface of the main body 30. When the diaphragm valve body 14 is separated from the valve seat 24a, the first flow path 26 and the second flow path 28 communicate with each other, and when the diaphragm valve body 14 is seated on the valve seat 24a, the first flow path 26 and the second flow path 28 Communication is cut off.
- a pilot chamber 34 is formed above the diaphragm valve body 14, that is, between the diaphragm valve body 14 and the bonnet 16, and a first flow path is provided on the side of the main body 30 of the diaphragm valve body 14.
- An annular valve chamber 36 connected to 26 is formed inside the main body 30 of the diaphragm valve body 14.
- a pilot passage 38 for communicating the valve chamber 36 and the pilot chamber 34 with each other is provided inside the main body 30 of the diaphragm valve body 14.
- One end of the pilot passage 38 opens to the side surface of the main body 30 facing the valve chamber 36, and the other end of the pilot passage 38 opens to the upper surface of the main body 30 facing the pilot chamber 34.
- a recess 40 defining the pilot chamber 34 is provided on the lower surface of the bonnet 16.
- the recess 40 has an inclined surface 40a that comes into contact with the flange portion 32 of the diaphragm valve body 14 when the diaphragm valve body 14 moves upward.
- the bonnet 16 is provided with a communication passage 42 penetrating in the vertical direction. The upper end of the communication passage 42 opens toward the pilot type spool valve 18, and the lower end of the communication passage 42 faces the recess 40.
- the pilot type spool valve 18 includes a drive unit 44 that supplies a pilot pressure due to compressed air or the like to the spool valve unit 46, and a spool valve unit 46 whose operating state is switched by the pilot pressure supplied from the drive unit 44.
- the drive unit 44 and the spool valve unit 46 extend in the left-right direction and are connected to each other at their ends.
- the spool valve portion 46 is shown as a cross-sectional view, but the drive portion 44 is shown in an external shape.
- the spool valve portion 46 includes a spool valve body 50 in which a piston 48 is integrally connected to one end.
- the outer diameter (maximum outer diameter) of the piston 48 is larger than the outer diameter (maximum outer diameter) of the spool valve body 50.
- the spool valve body 50 and the piston 48 are slidably supported in the left-right direction inside a valve housing fixed to the upper surface of the bonnet 16.
- the valve housing has a central housing 54 having holes penetrating in the left-right direction, an end housing 56 having bottomed holes, and an end plate 58.
- the central housing 54 guides the outer peripheral surface of the spool valve body 50.
- the end housing 56 guides the outer peripheral surface of the piston 48 and closes one end side of the central housing 54.
- the end plate 58 closes the other end of the central housing 54.
- a first passage 54a penetrating in the radial direction is provided in the upper part of the central housing 54, and a second passage 54b penetrating in the radial direction is provided in the lower part of the central housing 54.
- the second passage 54b is provided at a position corresponding to the communication passage 42 of the bonnet 16, and communicates with the pilot room 34 via the communication passage 42.
- the first packing 62a attached to the first land portion 60a is provided with the first land portion 60a and the second land portion 60b at predetermined intervals in the axial direction near the center of the spool valve body 50. On the left side of the second passage 54b, it can come into contact with the inner peripheral surface of the central housing 54. The second packing 62b mounted on the second land portion 60b can come into contact with the inner peripheral surface of the central housing 54 on the right side of the second passage 54b.
- An annular first groove portion 66a is formed between the first end portion 64a, which is the end portion of the spool valve body 50 on the side close to the piston 48, and the first land portion 60a.
- the first groove portion 66a communicates with the first passage 54a of the central housing 54 regardless of the sliding position of the spool valve body 50.
- An annular second groove portion 66b is formed between the second end portion 64b, which is the end portion of the spool valve body 50 on the side separated from the piston 48, and the second land portion 60b.
- a seal ring 65 that is in sliding contact with the inner peripheral surface of the central housing 54 is attached to the first end portion 64a of the spool valve body 50.
- a predetermined gap 68 is secured between the outer peripheral surface of the second end portion 64b of the spool valve body 50 and the inner peripheral surface of the central housing 54, and the second groove portion 66b passes through the gap 68. Therefore, it communicates with the space provided between the second end portion 64b and the end plate 58, that is, the second action chamber 72.
- the second groove 66b communicates with the second passage 54b of the central housing 54, the pressure fluid of the pilot chamber 34 is introduced into the second working chamber 72.
- a piston packing 48a that is in sliding contact with the inner peripheral surface of the hole of the end housing 56 is mounted on the outer periphery of the piston 48.
- a first working chamber 70 is formed between the piston 48 and the bottom surface 57 of the hole of the end housing 56 to introduce the pilot pressure from the drive unit 44 when the drive unit 44 is energized.
- the end surface of the piston 48 abuts on the bottom surface 57 of the hole of the end housing 56 (see FIG. 1), and the flange 48b provided on the outer periphery of the piston 48 is the center housing 54. It can be moved to and from the position where it abuts on the end face (see FIG. 2).
- the second passage 54b of the central housing 54 communicates with the second groove 66b of the spool valve body 50.
- the second passage 54b of the central housing 54 communicates with the first groove 66a of the spool valve body 50.
- An upper plate 76 is provided above the spool valve portion 46 via a flat gasket 74.
- the discharge port 78 formed on the lower surface of the upper plate 76 communicates with the first passage 54a of the central housing 54.
- the high-pressure fluid discharge device 10 is basically configured as described above, and its operation will be described below with reference to FIGS. 1 and 2.
- the initial state is a state in which the main body 30 of the diaphragm valve body 14 is in contact with the valve seat 24a and the end surface of the piston 48 is in contact with the bottom surface 57 of the hole of the end housing 56. And. At this time, the drive unit 44 is not energized. Further, it is assumed that the pressure fluid has not yet been introduced into the body 12 from the input port 20.
- the first packing 62a attached to the first land portion 60a of the spool valve body 50 abuts on the inner peripheral surface of the central housing 54 on the left side of the second passage 54b, while the second land portion 60b.
- the mounted second packing 62b is not in contact with the inner peripheral surface of the central housing 54. That is, the second passage 54b of the central housing 54 communicates with the second groove 66b of the spool valve body 50, and the communication between the second passage 54b of the central housing 54 and the first groove 66a of the spool valve body 50 is blocked. Has been done.
- the pilot chamber 34 includes the continuous passage 42 of the bonnet 16, the second passage 54b of the central housing 54, the second groove portion 66b of the spool valve body 50, and the outer peripheral surface of the second end portion 64b of the spool valve body 50. It communicates with the second action chamber 72 through a gap 68 with the inner peripheral surface of the central housing 54.
- the pressure fluid supplied to the pilot chamber 34 is introduced into the second action chamber 72, the spool valve body 50 is pressed to the left by the pressure fluid introduced into the second action chamber 72, and the end face of the piston 48 is pressed. The state of contact with the bottom surface 57 of the hole of the end housing 56 is maintained.
- the pilot pressure from the drive unit 44 is introduced into the first working chamber 70.
- the pilot pressure pushes the piston 48 and the spool valve body 50 integrated with the piston 48 to the right. Since the outer diameter of the piston 48 is larger than the outer diameter of the spool valve body 50, the pressing force exceeds the force for pressing the spool valve body 50 to the left by the pressure fluid introduced into the second action chamber 72. .. Therefore, the spool valve body 50 moves to the right.
- the second packing 62b attached to the second land portion 60b of the spool valve body 50 abuts on the inner peripheral surface of the central housing 54 on the right side of the second passage 54b, and is attached to the first land portion 60a. 1
- the packing 62a is separated from the inner peripheral surface of the central housing 54.
- the spool valve body 50 moves to the right until the flange 48b of the piston 48 abuts on the end face of the central housing 54.
- the pilot chamber 34 has the connecting passage 42 of the bonnet 16, the second passage 54b of the central housing 54, the first groove portion 66a of the spool valve body 50, and the central housing 54. It communicates with the discharge port 78 via the first passage 54a. As a result, the pressure fluid stored in the pilot chamber 34 is discharged from the discharge port 78, and the diaphragm valve body 14 is separated from the valve seat 24a.
- the first flow path 26 and the second flow path 28 communicate with each other, and the pressure fluid introduced into the body 12 from the input port 20 flows from the first flow path 26 to the second flow path. It flows into the road 28 and is discharged at once from the output port 22. At that time, since the pilot passage 38 and the second action chamber 72 are cut off, the spool valve body 50 can be driven without being affected by the pressure drop in the first flow path 26.
- the spool valve body 50 moves to the right, the pressure of the fluid in the second action chamber 72 is equal to or higher than a predetermined value, so that the spool valve body 50 moves to the left.
- the first packing 62a attached to the first land portion 60a of the spool valve body 50 abuts on the inner peripheral surface of the central housing 54 on the left side of the second passage 54b, and is attached to the second land portion 60b. 2
- the packing 62b is separated from the inner peripheral surface of the central housing 54.
- the spool valve body 50 moves to the left until the end surface of the piston 48 abuts on the bottom surface 57 of the hole in the end housing 56.
- the pressure fluid is intermittently discharged from the output port 22 by repeatedly energizing and stopping the drive unit 44.
- the device since the opening and closing of the diaphragm valve body 14 is controlled by the pilot type spool valve 18, the device can be miniaturized. Specifically, since the spool valve body 50 operates by the pilot pressure from the drive unit 44 and the pressure fluid introduced from the pilot chamber 34, the electric power required to drive the spool valve body 50 is small.
- a pilot pressure above a certain level is required to drive the pilot type spool valve body 50, and the supply pressure used for air blow cannot be used for the pilot pressure because the pressure drop is large.
- the high-pressure fluid discharge device 10 of the present embodiment it is possible to cut off the space between the pilot passage 38 and the second action chamber 72 during blowing and drive the spool valve body 50 without being affected by the pressure drop.
- the pressure fluid of the pilot chamber 34 is introduced into the spool valve body 50 through the gap between the outer peripheral surface of the spool valve body 50 and the inner peripheral surface of the central housing 54, the flow path configuration is simple. Can be.
- Each of these usage patterns is characterized by a device or the like connected to the input port 20.
- a tank 82 is connected to the input port 20 of the high-pressure fluid discharge device 10 via a connecting attachment 80.
- the tank 82 includes a tank chamber 82a having a predetermined capacity inside, an inlet port 82b for connecting pipes, and an outlet port 82c connected to the input port 20 of the high-pressure fluid discharge device 10.
- the pressure fluid When the pressure fluid is supplied from the inlet port 82b via a pipe (not shown), the pressure fluid is accumulated in the tank chamber 82a and then supplied to the input port 20 of the high-pressure fluid discharge device 10 via the outlet port 82c. .. From the output port 22 of the high-pressure fluid discharge device 10, a fluid having a high peak pressure corresponding to the capacity of the tank chamber 82a is discharged.
- a linear pipe 84 is connected to the input port 20 of the high-pressure fluid discharge device 10 via a pipe joint 86.
- the thickness or length of the linear pipe 84 is set so as to have a capacity equivalent to that of the tank 82. As a result, a fluid having a high peak pressure can be discharged from the output port 22 of the high-pressure fluid discharge device 10.
- a crank-shaped pipe 88 or a bent pipe 88 bent according to a narrow space of the device is connected to the input port 20 of the high-pressure fluid discharge device 10 via a pipe joint 90. ..
- the thickness or length of the bent pipe 88 is set so as to have a capacity equivalent to that of the tank 82. As a result, a fluid having a high peak pressure can be discharged from the output port 22 of the high-pressure fluid discharge device 10.
- a filter 94 is connected to the input port 20 of the high-pressure fluid discharge device 10 via a connecting attachment 92.
- the filter 94 includes a case 96 that houses a filter unit (not shown) inside, and a body 98 that is coupled to the case 96 and has an inlet port 98a and an outlet port 98b.
- the pressure fluid When a pressure fluid is supplied from the inlet port 98a via a pipe (not shown), the pressure fluid is supplied to the input port 20 of the high-pressure fluid discharge device 10 via the outlet port 98b after removing dust and the like by the filter unit. Will be done. Since the pressure fluid cleaned by the filter unit is supplied to the high-pressure fluid discharge device 10, its durability is improved.
- the high-pressure fluid discharge device is not limited to the above-described embodiment, and can adopt various configurations without departing from the gist of the present invention.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
図3に示されるように、高圧流体吐出装置10の入力ポート20には、連結用アタッチメント80を介してタンク82が接続される。タンク82は、所定容量を有するタンク室82aを内部に備えるとともに、配管接続用の入口ポート82bと、高圧流体吐出装置10の入力ポート20に接続される出口ポート82cを備える。
図4に示されるように、高圧流体吐出装置10の入力ポート20には、管継手86を介して直線状の配管84が接続される。この直線状の配管84は、前記タンク82と同等の容量を有するように、その太さまたは長さが設定されている。これにより、高圧流体吐出装置10の出力ポート22から高いピーク圧を有する流体を吐出することができる。
図5に示されるように、高圧流体吐出装置10の入力ポート20には、管継手90を介して、クランク状、あるいは装置の狭いスペースに合わせて屈曲された屈曲状の配管88が接続される。この屈曲状の配管88は、前記タンク82と同等の容量を有するように、その太さまたは長さが設定されている。これにより、高圧流体吐出装置10の出力ポート22から高いピーク圧を有する流体を吐出することができる。
図6に示されるように、高圧流体吐出装置10の入力ポート20には、連結用アタッチメント92を介してフィルタ94が接続される。フィルタ94は、内部にフィルタユニット(図示せず)を収容するケース96と、ケース96に結合されるとともに入口ポート98aおよび出口ポート98bを有するボデイ98を備える。
Claims (8)
- 入力ポート(20)に連通する第1流路(26)と出力ポート(22)に連通する第2流路(28)が形成されたボデイ(12)と、前記ボデイに設けられた弁座(24a)と協働して前記第1流路と前記第2流路の連通と遮断を切り換えるダイヤフラム弁体(14)とを備える高圧流体吐出装置であって、
前記第1流路に連なる弁室(36)とパイロット室(34)とが前記ダイヤフラム弁体によって区画され、前記ダイヤフラム弁体には、前記弁室と前記パイロット室とを連通するパイロット通路(38)が設けられ、前記パイロット室と排出ポート(78)の連通と遮断を切り換えるパイロット式スプールバルブ(18)が設けられた高圧流体吐出装置。 - 請求項1記載の高圧流体吐出装置において、
前記パイロット式スプールバルブのスプール弁体(50)の一端側には、前記パイロット式スプールバルブの駆動部(44)からのパイロット圧が供給可能に構成され、前記スプール弁体の他端側には、前記パイロット室の圧力流体が導入可能に構成された高圧流体吐出装置。 - 請求項2記載の高圧流体吐出装置において、
前記スプール弁体の他端側に対する前記パイロット室の圧力流体の導入は、前記スプール弁体の外周面とバルブハウジング(54)の内周面との隙間を介して行われる高圧流体吐出装置。 - 請求項2記載の高圧流体吐出装置において、
前記スプール弁体の一端には、前記スプール弁体の外径よりも大きい外径を有するピストン(48)が連結される高圧流体吐出装置。 - 請求項1記載の高圧流体吐出装置において、
前記入力ポートにはタンク(82)が接続される高圧流体吐出装置。 - 請求項1記載の高圧流体吐出装置において、
前記入力ポートにはタンクと同等の機能を有する直線状の配管(84)が接続される高圧流体吐出装置。 - 請求項1記載の高圧流体吐出装置において、
前記入力ポートにはタンクと同等の機能を有する屈曲状の配管(88)が接続される高圧流体吐出装置。 - 請求項1記載の高圧流体吐出装置において、
前記入力ポートにはフィルタ(94)が接続される高圧流体吐出装置。
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CN202080069594.5A CN114466983B (zh) | 2019-10-02 | 2020-06-16 | 高压流体喷出装置 |
KR1020227014404A KR102637586B1 (ko) | 2019-10-02 | 2020-06-16 | 고압유체 토출장치 |
EP20870762.0A EP4040023A4 (en) | 2019-10-02 | 2020-06-16 | DEVICE FOR EVACUATION OF FLUIDS UNDER HIGH PRESSURE |
JP2021551139A JPWO2021065090A1 (ja) | 2019-10-02 | 2020-06-16 | |
US17/764,408 US11867318B2 (en) | 2019-10-02 | 2020-06-16 | High-pressure fluid discharge device |
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EP4040023A1 (en) | 2022-08-10 |
KR20220066406A (ko) | 2022-05-24 |
KR102637586B1 (ko) | 2024-02-16 |
CN114466983B (zh) | 2023-12-29 |
TW202118553A (zh) | 2021-05-16 |
EP4040023A4 (en) | 2023-10-25 |
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