CA1147238A - Hydraulic valve for programme and remote switch over of pipelines - Google Patents
Hydraulic valve for programme and remote switch over of pipelinesInfo
- Publication number
- CA1147238A CA1147238A CA000360749A CA360749A CA1147238A CA 1147238 A CA1147238 A CA 1147238A CA 000360749 A CA000360749 A CA 000360749A CA 360749 A CA360749 A CA 360749A CA 1147238 A CA1147238 A CA 1147238A
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- vertical
- elbow
- pipes
- horizontal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Float Valves (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A hydraulic valve for programmed and remote switching over of pipelines, where the body of the valve has three vertical pipes which axes lie in a single plane. A first vertical pipe is connected at its lower end to a horizontal inlet pipe, while connected at the upper end, through an elbow to the side of a second vertical pipe. The latter is connected at its upper end, through a second elbow, to a horizontal out-let, while its lower end, under the opening toward the first vertical pipe, via a third elbow is connected to the side of the third vertical pipe. The third vertical pipe is connected at the upper end to the vertical outlet pipeline, while at the lower end, via a fourth elbow, is connected to the side of the first vertical pipe, where a free float is placed. With the horizontal inlet pipeline a gravitational valve with a dis-charger is foreseen, while on the horizontal outlet pipeline there is a check valve. Along the outer diameter of the upper part of the float a planar ringlike packing edge is machined, while its bottom part has a semispherical shape and is filled with heavier than water ballast material. The diameter of the float is smaller than the diameters of the three vertical pi-pes, while its length is shorter than the lengths of the ver-tical sections of these pipes, respectively above and bellow the openings connecting the pipes with each other. The floats diameter is greater than the diameters of the horizontal in-let and outlet pipelines and that of the vertical outlet pi-peline. The upper end of the discharge is lower than the level of the bottom end of the first vertical pipe.
A hydraulic valve for programmed and remote switching over of pipelines, where the body of the valve has three vertical pipes which axes lie in a single plane. A first vertical pipe is connected at its lower end to a horizontal inlet pipe, while connected at the upper end, through an elbow to the side of a second vertical pipe. The latter is connected at its upper end, through a second elbow, to a horizontal out-let, while its lower end, under the opening toward the first vertical pipe, via a third elbow is connected to the side of the third vertical pipe. The third vertical pipe is connected at the upper end to the vertical outlet pipeline, while at the lower end, via a fourth elbow, is connected to the side of the first vertical pipe, where a free float is placed. With the horizontal inlet pipeline a gravitational valve with a dis-charger is foreseen, while on the horizontal outlet pipeline there is a check valve. Along the outer diameter of the upper part of the float a planar ringlike packing edge is machined, while its bottom part has a semispherical shape and is filled with heavier than water ballast material. The diameter of the float is smaller than the diameters of the three vertical pi-pes, while its length is shorter than the lengths of the ver-tical sections of these pipes, respectively above and bellow the openings connecting the pipes with each other. The floats diameter is greater than the diameters of the horizontal in-let and outlet pipelines and that of the vertical outlet pi-peline. The upper end of the discharge is lower than the level of the bottom end of the first vertical pipe.
Description
11~7~38 The present invention relates to a hydraulic control device for the programmed selective feeding of pipeline systems.
It is particularly applicable to stationary and semistationary water sprinkling systems for successively operating them.
A valve device with remote hydraulic control is known, which consists of a body having horizontal inlets and outlets and a vertical upward outlet with an expansion chamber, into which a cylindrical float is placed. In a tubular seat, made in the body, aligned with and against the inlet, there are provided a check valve with a spring and a cylindrical shaft. The bearing of the check valve is made in the horizontal opening, connecting the tubular seat with the vertical, upward, opening. A chamber is defined betweer. the horizontal inlet and the tubular seat of the check valve, this chamber being connected by an opening made in the body above the axis of the check valve, to the vertical upward opening. A cylindrical - check valve with draw openings along its axis is provided in the horizontal outlet, being connected with the open air through axial openings in the bearing lid of the valve.
The disadvantages of this valve device are the complexity of the two check valves and the presence of two springs working under the direct influence of the water running through the valve.
It lS therefore an object of the present invention to provide a hydraulic remote control device suitable to selectively program the feeding of pipelines, which device has a simplified structure devoid of components of which the reliability may be reduced by the influence of the running water or other hydraulic fluid flowing through the pipelines.
More specifically, the present invention as herein broadly claimed is a hydraulic control device for the pro-grammed selective feeding of pipeline systems, said device 1 -- ~
, ,' ~
1~47~238 comprising: a horizontal inlet pipe for connection to a source of hydraulic fluid; a horizontal outlet pipe for connection to a first pipeline system to feed said hydraulic fluid thereinto and having a check ~alve therein to pre~ent back flow of said hydraulic fluid, a vertical outlet pipe for connection to a second pipeline system to feed said hydraulic fluid thereinto;
three vertical pipes whose axes lie in a common plane, a first one of said pipes being connected at its upper end to a second one of said pipes through a first pipe elbow, said second pipe being connected at its upper end to said horizontal outlet pipe through a second pipe elbow and, at its lower end through a third elbow, to the side of a third one of said vertical pipes of which the upper end is connected to said vertical outlet pipe; wherein the lower end of said third pipe is connected to the side of said first vertical pipe and adjacent the lower end ~r thereof through a fourth elbow; discharge means in said inlet pipe forming a hydraulic fluid discharge opening through the F
sidewall of said inlet pipe; a gravitational check valve in said inlet pipe upstream of said discharge opening suitable to ,L
close said inlet pipe to prevent back flow therein and provided with closure means suitable to close said discharge opening when said gravitational check valve is inoperative during inflow of ' said hydraulic fluid into said inlet pipe; wherein the F
diameters of said inlet pipe, of said second elbow and of said f vertical outlet pipe are respectively smaller than the r diameters of said first pipe, of said second pipe and of said third pipe whereby a seat is formed at the respective junctions therebetween; a shutter freely floatable on said hydraulic fluid and provided in one of said vertical pipes; and wherein the diameter of said shutter is selected so as to be movable in said pipes while being seatable on said seats whereby selectively closing said horizontal, vertical and inlet pipes L`
7'~38 when seating on the corresponding seat thereof.
A ma~or advantage of the present invention is that jamming of the closing component of the control device by some movable parts is avoided because closing of both outlet pipes is obtained by means of a free floating shutter. When the directions of the elevation force of the shutter and of the t water pressure in the inlet pipe coincide, pressure pulses have no effect on the normal operation of the device, which is - free of any spring and has a simplified design.
A preferred embodiment of the invention will now be r described with refPrence to the appended drawing including a f single figure showing, schematically, a longitudinal cross- !
section of a hydraulic control device made according to the teaching of the invention.
The hydraulic control device, as shown, has a body 1, made up of three vertical pipes 2, 5, 9 with longitu-dinal axes lying in a common plane. The first vertical pipe 2 is connected at its lower end to an inlet pipe 3, and at its upper end, through a gradually bending and upwardly directed elbow 4 making an angle greater than 60, to the side of the second vertical pipe 5. This pipe 5 is connected at its upper , end, via an elbow 6, to a horizontal outlet pipe 7, while it is connected at its bottom end, by means of an opening 21 p facing the first vertical pipe 2 and through an elbow 8 which gradually bends and is downwardly directed at an angle less than 30 in respect to the axis of the second pipe 5, to the side of the third vertical pipe 9. The third vertical pipe 9, at its upper end, is connected to a vertical outlet pipe 10, while its bottom end is connected to an elbow 11 which gra- ?
30 dually bends and is downwardly directed at an angle smaller than 30 with respect to the axis of the third vertical pipe 9.
This elbow 11 is also connected to the side of the first ~7~3~
vertical pipe 2, which contains a free floating shutter 12.
Along the outer periphery of the upper end of the shutter 12, there is provided a machined planar ring-like packing edge 13.
The bottom 14 of float 12 has a hollowed out semispherical shape and is filled with a material 15 which is heavier than water. There is provided, on the upper part of a body 16 of La gravitational check valve 17, mounted on the horizontal inlet pipe 3, a discharge tube 18, whose axis is aligned with the axis of a cone-shutter 19 located on the upstream face of the gravitational check valve 17. t The diameter of the shutter 12 is smaller than the diameters of the three vertical pipes 2, 5 r 9 ~ while its length is shorter than the lengths of the vertical sections of the same pipes, respectively above and below the openings con-necting the pipes with each other. The diameter of the shutter 12 is greater than the diameters of the horizontal inlet pipe 3, of the horizontal outlet pipe 7 and of the vertical outlet pipe 10. The upper edge of the discharge tube 18 is at a lower level than the bo-ttom of the first vertical pipe 2.
-The valve operates as follows. Initially, before switching the water supply, the float 12 is at the bottom end of the first vertical pipe 2 and the check valves 17 and 20 close the horizontal inlet pipe 3 and the horizontal out-let pipe 7, respectively. When the water supply is switched on, the gravitational check valve 17 opens the inlet pipe 3 and with the help of the cone shutter 19 closes the discharge tube 18. Water enters the valve, as shown by the arrow, and lifts the float 12 upwardly along the first vertical pipe 2.
Through the elbow 4, the float 12 gets into the second vertical pipe 5 and finally closes the horizontal outlet pipe 7 while water through the third vertical pipe 9 rises toward - the vertical outlet pipe 10. Upon a signal causing reduc-tion 1147~38 of water pressure in the horizontal inlet pipe 3, check valve 17 closes pipe 3 while opening the discharge tube 18 so that water discharges into the open. The shutter 12, fol-lowing the water level, passes from the second pipe 5 into the third pipe 9, via the elbow 8. A signal for increased water pressure in the inlet pipe 3 should be given before the shutter 12 has passed into the first vertical pipe 2. Under this condition, the shutter 12 comes to close the vertical outlet pipe 10, while water flows through the first pipe 2, the second pipe 5, the elbow 6 across the check valve 20 toward the horizontal outlet pipe 7. Every successive signal of the same duration for reduced or increased water pressure in the inlet pipe 3 will cause the float 12 to close only the vertical outlet pipe 7. At a signal for reduced water pressure with greater duration, water from the valve flows out completely through the discharge 18, and the shutter 12 moves along the elbow 11 and into the first vertical pipe 2, i.e. it returns to its initial state. The check valve 20 is intended to prevent backflow which would discharge the horizontal outlet pipeline 7 through the discharge 18, which would lead to a significant increase in the duration of the signals for reduced pressure.
F
It is particularly applicable to stationary and semistationary water sprinkling systems for successively operating them.
A valve device with remote hydraulic control is known, which consists of a body having horizontal inlets and outlets and a vertical upward outlet with an expansion chamber, into which a cylindrical float is placed. In a tubular seat, made in the body, aligned with and against the inlet, there are provided a check valve with a spring and a cylindrical shaft. The bearing of the check valve is made in the horizontal opening, connecting the tubular seat with the vertical, upward, opening. A chamber is defined betweer. the horizontal inlet and the tubular seat of the check valve, this chamber being connected by an opening made in the body above the axis of the check valve, to the vertical upward opening. A cylindrical - check valve with draw openings along its axis is provided in the horizontal outlet, being connected with the open air through axial openings in the bearing lid of the valve.
The disadvantages of this valve device are the complexity of the two check valves and the presence of two springs working under the direct influence of the water running through the valve.
It lS therefore an object of the present invention to provide a hydraulic remote control device suitable to selectively program the feeding of pipelines, which device has a simplified structure devoid of components of which the reliability may be reduced by the influence of the running water or other hydraulic fluid flowing through the pipelines.
More specifically, the present invention as herein broadly claimed is a hydraulic control device for the pro-grammed selective feeding of pipeline systems, said device 1 -- ~
, ,' ~
1~47~238 comprising: a horizontal inlet pipe for connection to a source of hydraulic fluid; a horizontal outlet pipe for connection to a first pipeline system to feed said hydraulic fluid thereinto and having a check ~alve therein to pre~ent back flow of said hydraulic fluid, a vertical outlet pipe for connection to a second pipeline system to feed said hydraulic fluid thereinto;
three vertical pipes whose axes lie in a common plane, a first one of said pipes being connected at its upper end to a second one of said pipes through a first pipe elbow, said second pipe being connected at its upper end to said horizontal outlet pipe through a second pipe elbow and, at its lower end through a third elbow, to the side of a third one of said vertical pipes of which the upper end is connected to said vertical outlet pipe; wherein the lower end of said third pipe is connected to the side of said first vertical pipe and adjacent the lower end ~r thereof through a fourth elbow; discharge means in said inlet pipe forming a hydraulic fluid discharge opening through the F
sidewall of said inlet pipe; a gravitational check valve in said inlet pipe upstream of said discharge opening suitable to ,L
close said inlet pipe to prevent back flow therein and provided with closure means suitable to close said discharge opening when said gravitational check valve is inoperative during inflow of ' said hydraulic fluid into said inlet pipe; wherein the F
diameters of said inlet pipe, of said second elbow and of said f vertical outlet pipe are respectively smaller than the r diameters of said first pipe, of said second pipe and of said third pipe whereby a seat is formed at the respective junctions therebetween; a shutter freely floatable on said hydraulic fluid and provided in one of said vertical pipes; and wherein the diameter of said shutter is selected so as to be movable in said pipes while being seatable on said seats whereby selectively closing said horizontal, vertical and inlet pipes L`
7'~38 when seating on the corresponding seat thereof.
A ma~or advantage of the present invention is that jamming of the closing component of the control device by some movable parts is avoided because closing of both outlet pipes is obtained by means of a free floating shutter. When the directions of the elevation force of the shutter and of the t water pressure in the inlet pipe coincide, pressure pulses have no effect on the normal operation of the device, which is - free of any spring and has a simplified design.
A preferred embodiment of the invention will now be r described with refPrence to the appended drawing including a f single figure showing, schematically, a longitudinal cross- !
section of a hydraulic control device made according to the teaching of the invention.
The hydraulic control device, as shown, has a body 1, made up of three vertical pipes 2, 5, 9 with longitu-dinal axes lying in a common plane. The first vertical pipe 2 is connected at its lower end to an inlet pipe 3, and at its upper end, through a gradually bending and upwardly directed elbow 4 making an angle greater than 60, to the side of the second vertical pipe 5. This pipe 5 is connected at its upper , end, via an elbow 6, to a horizontal outlet pipe 7, while it is connected at its bottom end, by means of an opening 21 p facing the first vertical pipe 2 and through an elbow 8 which gradually bends and is downwardly directed at an angle less than 30 in respect to the axis of the second pipe 5, to the side of the third vertical pipe 9. The third vertical pipe 9, at its upper end, is connected to a vertical outlet pipe 10, while its bottom end is connected to an elbow 11 which gra- ?
30 dually bends and is downwardly directed at an angle smaller than 30 with respect to the axis of the third vertical pipe 9.
This elbow 11 is also connected to the side of the first ~7~3~
vertical pipe 2, which contains a free floating shutter 12.
Along the outer periphery of the upper end of the shutter 12, there is provided a machined planar ring-like packing edge 13.
The bottom 14 of float 12 has a hollowed out semispherical shape and is filled with a material 15 which is heavier than water. There is provided, on the upper part of a body 16 of La gravitational check valve 17, mounted on the horizontal inlet pipe 3, a discharge tube 18, whose axis is aligned with the axis of a cone-shutter 19 located on the upstream face of the gravitational check valve 17. t The diameter of the shutter 12 is smaller than the diameters of the three vertical pipes 2, 5 r 9 ~ while its length is shorter than the lengths of the vertical sections of the same pipes, respectively above and below the openings con-necting the pipes with each other. The diameter of the shutter 12 is greater than the diameters of the horizontal inlet pipe 3, of the horizontal outlet pipe 7 and of the vertical outlet pipe 10. The upper edge of the discharge tube 18 is at a lower level than the bo-ttom of the first vertical pipe 2.
-The valve operates as follows. Initially, before switching the water supply, the float 12 is at the bottom end of the first vertical pipe 2 and the check valves 17 and 20 close the horizontal inlet pipe 3 and the horizontal out-let pipe 7, respectively. When the water supply is switched on, the gravitational check valve 17 opens the inlet pipe 3 and with the help of the cone shutter 19 closes the discharge tube 18. Water enters the valve, as shown by the arrow, and lifts the float 12 upwardly along the first vertical pipe 2.
Through the elbow 4, the float 12 gets into the second vertical pipe 5 and finally closes the horizontal outlet pipe 7 while water through the third vertical pipe 9 rises toward - the vertical outlet pipe 10. Upon a signal causing reduc-tion 1147~38 of water pressure in the horizontal inlet pipe 3, check valve 17 closes pipe 3 while opening the discharge tube 18 so that water discharges into the open. The shutter 12, fol-lowing the water level, passes from the second pipe 5 into the third pipe 9, via the elbow 8. A signal for increased water pressure in the inlet pipe 3 should be given before the shutter 12 has passed into the first vertical pipe 2. Under this condition, the shutter 12 comes to close the vertical outlet pipe 10, while water flows through the first pipe 2, the second pipe 5, the elbow 6 across the check valve 20 toward the horizontal outlet pipe 7. Every successive signal of the same duration for reduced or increased water pressure in the inlet pipe 3 will cause the float 12 to close only the vertical outlet pipe 7. At a signal for reduced water pressure with greater duration, water from the valve flows out completely through the discharge 18, and the shutter 12 moves along the elbow 11 and into the first vertical pipe 2, i.e. it returns to its initial state. The check valve 20 is intended to prevent backflow which would discharge the horizontal outlet pipeline 7 through the discharge 18, which would lead to a significant increase in the duration of the signals for reduced pressure.
F
Claims (6)
1. A hydraulic control device for the programmed selective feeding of pipeline systems, said device comprising:
a horizontal inlet pipe for connection to a source of hydraulic fluid; a horizontal outlet pipe for connection to a first pipeline system to feed said hydraulic fluid thereinto and having a check valve therein to prevent back flow of said hydraulic fluid; a vertical outlet pipe for connection to a second pipeline system to feed said hydraulic fluid thereinto;
three vertical pipes whose axes lie in a common plane, a first one of said pipes being connected at its upper end to a second one of said pipes through a first pipe elbow, said second pipe being connected at its upper end to said horizontal outlet pipe through a second pipe elbow and, at its lower end through a third elbow, to the side of a third one of said vertical pipes of which the upper end is connected to said vertical outlet pipe; wherein the lower end of said third pipe is connected to the side of said first vertical pipe and adjacent the lower end thereof through a fourth elbow; discharge means in said inlet pipe forming a hydraulic fluid discharge opening through the sidewall of said inlet pipe; a gravitational check valve in said inlet pipe upstream of said discharge opening suitable to close said inlet pipe to prevent back flow therein and provided with closure means suitable to close said discharge opening when said gravitational check valve is inoperative during inflow of said hydraulic fluid into said inlet pipe; wherein the diameters of said inlet pipe, of said second elbow and of said vertical outlet pipe are respectively smaller than the diameters of said first pipe, of said second pipe and of said third pipe whereby a seat is formed at the respective junctions therebetween; a shutter freely floatable on said hydraulic fluid and provided in one of said vertical pipes; and wherein the diameter of said shutter is selected so as to be movable in said pipes while being seatable on said seats whereby selectively closing said horizontal, vertical and inlet pipes when seating on the corresponding seat thereof.
a horizontal inlet pipe for connection to a source of hydraulic fluid; a horizontal outlet pipe for connection to a first pipeline system to feed said hydraulic fluid thereinto and having a check valve therein to prevent back flow of said hydraulic fluid; a vertical outlet pipe for connection to a second pipeline system to feed said hydraulic fluid thereinto;
three vertical pipes whose axes lie in a common plane, a first one of said pipes being connected at its upper end to a second one of said pipes through a first pipe elbow, said second pipe being connected at its upper end to said horizontal outlet pipe through a second pipe elbow and, at its lower end through a third elbow, to the side of a third one of said vertical pipes of which the upper end is connected to said vertical outlet pipe; wherein the lower end of said third pipe is connected to the side of said first vertical pipe and adjacent the lower end thereof through a fourth elbow; discharge means in said inlet pipe forming a hydraulic fluid discharge opening through the sidewall of said inlet pipe; a gravitational check valve in said inlet pipe upstream of said discharge opening suitable to close said inlet pipe to prevent back flow therein and provided with closure means suitable to close said discharge opening when said gravitational check valve is inoperative during inflow of said hydraulic fluid into said inlet pipe; wherein the diameters of said inlet pipe, of said second elbow and of said vertical outlet pipe are respectively smaller than the diameters of said first pipe, of said second pipe and of said third pipe whereby a seat is formed at the respective junctions therebetween; a shutter freely floatable on said hydraulic fluid and provided in one of said vertical pipes; and wherein the diameter of said shutter is selected so as to be movable in said pipes while being seatable on said seats whereby selectively closing said horizontal, vertical and inlet pipes when seating on the corresponding seat thereof.
2. A hydraulic control device according to claim 1, wherein said shutter is formed, around the outer periphery and at the upper end thereof, with a planar ring-like packing edge while the end of the shutter is hollowed out to define a semispherical cavity, ballast material heavier than said hydraulic fluid filling said cavity.
3. A hydraulic control device according to claim 1, wherein the diameter of said shutter is smaller than the diameters of said three vertical pipes and its length shorter than the length of said pipes.
4. A hydraulic control device according to claim 1, wherein said floating shutter has a ballasted bottom end.
5. A hydraulic control device according to claims 1, 3 or 4, wherein said discharge opening stands at a level lower than the bottom of said first pipe.
6. A hydraulic control device as claimed in claims 1, 3 or 4, wherein the angle of inclination of said first elbow, towards said second pipe, is greater than 60°; the angle of inclination of said third elbow towards said third pipe and away from said second pipe is less than 30°, and the angle of inclination of said fourth elbow towards said first pipe is less than 30°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000360749A CA1147238A (en) | 1980-09-22 | 1980-09-22 | Hydraulic valve for programme and remote switch over of pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000360749A CA1147238A (en) | 1980-09-22 | 1980-09-22 | Hydraulic valve for programme and remote switch over of pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1147238A true CA1147238A (en) | 1983-05-31 |
Family
ID=4117951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000360749A Expired CA1147238A (en) | 1980-09-22 | 1980-09-22 | Hydraulic valve for programme and remote switch over of pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1147238A (en) |
-
1980
- 1980-09-22 CA CA000360749A patent/CA1147238A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |