CA2810588A1 - A shut-off and control valve with flow sensor - Google Patents
A shut-off and control valve with flow sensor Download PDFInfo
- Publication number
- CA2810588A1 CA2810588A1 CA 2810588 CA2810588A CA2810588A1 CA 2810588 A1 CA2810588 A1 CA 2810588A1 CA 2810588 CA2810588 CA 2810588 CA 2810588 A CA2810588 A CA 2810588A CA 2810588 A1 CA2810588 A1 CA 2810588A1
- Authority
- CA
- Canada
- Prior art keywords
- flow
- plunger
- valve
- controllable valve
- output port
- 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.)
- Abandoned
Links
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/528—Mechanical actuating means with crank, eccentric, or cam with pin and slot
Abstract
A controllable valve comprising a main body coupled at one end to an input port and coupled to an output port at the other end. The main body comprises a valve control mechanism configured to operate the controllable valve between a closed position and an open position in incremental movements for variable flow control and full shut-off control.
Description
A
CANADA
TITLE: A SHUT-OFF AND CONTROL VALVE WITH FLOW SENSOR
FIELD OF THE INVENTION
[0001] The present invention relates to valves, more particularly, to a valve comprising a variable flow and shut-off mechanism.
BACKGROUND OF THE INVENTION
CANADA
TITLE: A SHUT-OFF AND CONTROL VALVE WITH FLOW SENSOR
FIELD OF THE INVENTION
[0001] The present invention relates to valves, more particularly, to a valve comprising a variable flow and shut-off mechanism.
BACKGROUND OF THE INVENTION
[0002] Typical shut-off valves and/or controllable valves tend to exhibit relatively high pressure differentials or drops in operation. This typically arises from abrupt changes in flow direction during the operation of the valve mechanism.
[0003] It will be appreciated that high or abrupt pressure differentials are not always desirable and can result in reduced efficiencies.
[0004] Accordingly, there remains a need for improvements in the art.
BRIEF SUMMARY OF THE INVENTION
BRIEF SUMMARY OF THE INVENTION
[0005] The present invention is directed to embodiments of a controllable valve.
100061 According to one embodiment, the present invention comprises a controllable valve comprising: an input port; an output port, said output port comprising a flow control nozzle; a plurality of conduit flow tubes, each of said conduit flow tubes having one end coupled to said input port and another end coupled to said output port; a valve control module comprising a plunger, said plunger being configured to block flow through said flow control nozzle in a closed position and permit flow through said flow control nozzle in an open position; and said valve control module comprising an actuator operatively coupled to said plunger and configured to move said plunger between said closed position and said open position so as to control flow between said input port and said output port.
[0007] Other aspects and features of the present invention will become apparent to those ordinarily skilled in the art upon review of the following description of embodiments of the invention in conjunction with the accompanying figures.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Reference will now be made to the accompanying drawings which show, by way of example, embodiments of the present invention, and in which:
[0009] Fig. 1 shows an isometric view of a controllable valve according to an embodiment of the present invention;
[00010] Fig. 2 is a sectional isometric view of the controllable valve of Fig.
1 taken along the line A-A;
[00011] Fig. 3(a) is sectional view of the controllable valve of Fig. 1 taken along line A-A and shown with the valve mechanism configured in an open or flow position;
[00012] Fig. 3(b) is another sectional view of the controllable valve of Fig.
1 taken along the line A-A and shown with the valve mechanism configured in a closed or constricted flow position;
[00013] Fig. 4 is a isometric view of a valve mechanism for the controllable valve of Fig. 1 according to an embodiment of the present invention; and [00014] Fig. 5(a) shows an isometric view of a flow conduit configuration for the controllable valve of Fig. 1 according to an embodiment of the present invention;
[00015] Fig. 5(b) is a side view of the flow conduit configuration of Fig.
5(a); and [00016] Fig. 5(c) is a top view of the flow conduit configuration of Fig.
5(a).
[00017] Like reference numerals indicate like or corresponding elements or components in the drawings.
DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
[00018] Reference is made to Fig. 1, which shows in diagrammatic form a controllable valve according to an embodiment of the present invention. The controllable valve is indicated generally by reference 100 and comprises a main body 110 which according to an embodiment is coupled to a base 120 or other support structure. As shown, the controllable valve 100 comprises an input port or module 130 coupled to one end of the main body 110 and an output port or module 140 coupled or attached to the other end of a the main body 110. The input port 130 comprises an input or inlet 132 (as shown in Fig.
2) and is configured to attach to a pipe or other equipment in a flow control application or configuration. The output port 140 comprises an output or outlet 142 (as also shown in Fig. 2) and is configured to attach to a pipe or other equipment in the flow control application.
[00019] As shown in Figs. 2 and 5(a) to 5(c), the main body 110 comprises a housing or outer structure 112 and a plurality of conduit flow tubes indicated generally by reference 150. The conduit flow tubes 150 are configured to couple the input or inlet 132 to the output or outlet 142 and provide a flow path, e.g. for a gas, vapour or a liquid, from the input port 130 to the output port 140. According to an embodiment, the controllable valve 100 comprises four conduit flow tubes 150, indicated individually by references 150a, 150b, 150c and 150d, as shown in Figs. 5(a) to 5(c). According to another aspect, the conduit flow tubes 150 may comprise shape or contour features to provide particular flow characteristics.
[00020] As also shown in Fig. 1, the input port or module 130 includes a high pressure (e.g. upstream) port or tap 131, and the output port or module 140 includes a low pressure (e.g. downstream) port or tap 141. The taps 131, 141 are operatively coupled to a flow-sensor 310 (Fig. 3), which is operatively coupled to a controller 320 (Fig.
3). The controller 320 comprises a control device (e.g. a programmable logic device or microprocessor based device executing firmware or other executable code) that is configured to measure or receive signals or data received from the flow-sensor 310 and calculate pressure differentials and other variables associated with the operation of the valve 100 and/or control the operation of the valve mechanism, for example, as described in more detail below. The particular implementation and programming details associated with the controller 320 for performing the functions and operations as herein described are readily within the understanding of one skilled in the art.
[00021] Reference is next made to Fig. 2, which shows a sectional view of the controllable valve 100 according to an embodiment of the invention. As shown, the controllable valve 100 comprises a valve mechanism which is configured in the main body 110 and indicated generally by reference 200. According to an embodiment, the valve mechanism 200 comprises a plunger 210 and an actuator mechanism 220. As will be described in more detail below, the actuator mechanism 220 is operatively connected to the plunger 210 and configured to move the plunger 210 in a direction indicated by arrow 221 to open, close and/or constrict flow from input port 132 to the output port 142.
According to an embodiment, the plunger 210 comprises a forward section 212 having a shape or configuration for providing flow characteristics, e.g. an aerodynamic shape.
According to an embodiment and as depicted in Fig. 2, the output port 142 comprises a Venturi chamber or nozzle as indicated generally by reference 144, which can be configured to provide certain flow characteristics. It will, however, be appreciated that other configurations for the output port 142 (and/or the input port 132) may be utilized based on desired flow or other operational characteristics. According to another aspect, the shape, contour or configuration of the plunger 210 is matched or optimized (e.g.
complimentary) to the shape or contour of the Venturi nozzle.
[00022] According to an embodiment and as shown in Fig. 4, the actuator mechanism 220 comprises a drive rod or stem 222 which is operatively coupled to a drive mechanism 224 (e.g. a servo or step motor) through a drive shaft 226 and a crank 228.
According to an embodiment, the drive motor 224 is operatively coupled to the controller 320 (Fig. 3) and configured to be responsive to one or more control signals generated by the controller 320, for example, to rotate the drive shaft 226 in a clockwise and/or counter clockwise direction, indicated generally by reference 225, which in turn, moves the drive rod 222 up in the direction indicated by arrow 227 and down in the direction indicated by arrow 229.
As shown in Fig. 4, the drive rod 222 is coupled to a drive block 230. The drive block 230 is fitted in a slot 212 in the plunger 210 and further comprises a drive slot 232 which engages a drive pin or shaft 214 coupled to the body of the plunger 210. The drive block k-6-230 and the pin 214 function together to translate the substantially vertical motion of the drive stem 222 into a substantially horizontal motion, which moves the plunger 210 in a forward direction indicated by arrow 211 and a reverse direction indicated by arrow 213.
According to an exemplary embodiment, the controller 320, the flow sensor 310 and the drive mechanism 224 (and the drive shaft 226 and the crank 228) are configured or housed in the base or support structure 120 (Fig. 1).
[000231 Reference is next made to Fig. 3(a), which shows the valve 100 in an open position, i.e. the plunger 210 is moved in the direction of arrow 213 away from the opening of the Venturi nozzle 144, which allows flow through the conduit flow tubes 150 between the input port 132 and the output port 142. According to the exemplary implementation depicted, the controller 320 is configured to generate one or more control signals for the drive motor 224 (Fig. 4) to move the drive rod 222 in the direction 227, which through the resultant movement of the drive block 230 moves the plunger backwards (i.e. towards the input port 132) and opens or allows flow through the Venturi nozzle 144. In this position, the controllable valve 100 is in the fully open position and gas (or liquid, or vapour) will flow through the conduit flow tubes 150 from the input port 132 to the output port 142.
[00024] Reference is next made to Fig. 3(b), which shows the valve 100 in a closed position. In the closed position, the plunger 210 is moved forward, i.e. in the direction of arrow 211, until forward section 212 of the plunger 210 closes or seals the opening to the Venturi nozzle 144. This prevents flow through the conduit flow tubes 150 from the input port 132 to the output port 142. According to the exemplary implementation depicted in Fig. 3(b), the controller 320 is configured to generate one or more control signals for the drive motor 224 (Fig. 4) to move the drive rod 222 in the direction 229, which also moves the drive block 230 and engages the drive pin 214 to move the plunger 210 in the direction of arrow 211. The plunger 210 is moved forward until the forward section 212 completely seals or blocks the opening of the Venturi nozzle thereby preventing flow between the input port 132 and the output port 142, and effectively closing or shutting off the control valve 100.
[00025] According to another aspect, the movement and positioning of the plunger 210 is controlled to provide a partial closing or reduced flow characteristic for the control valve 100. For example, the controller 320 is configured (e.g. through executable code or firmware) to monitor (e.g. in real time) the pressure differential, i.e. using the flow sensor outputs 131 and 141, and the plunger 210 is positioned according to a desired pressure differential or desired flow rate or a variable flow rate.
[00026] The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Certain adaptations and modifications of the invention will be obvious to those skilled in the art.
Therefore, the presently discussed embodiments are considered to be illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
100061 According to one embodiment, the present invention comprises a controllable valve comprising: an input port; an output port, said output port comprising a flow control nozzle; a plurality of conduit flow tubes, each of said conduit flow tubes having one end coupled to said input port and another end coupled to said output port; a valve control module comprising a plunger, said plunger being configured to block flow through said flow control nozzle in a closed position and permit flow through said flow control nozzle in an open position; and said valve control module comprising an actuator operatively coupled to said plunger and configured to move said plunger between said closed position and said open position so as to control flow between said input port and said output port.
[0007] Other aspects and features of the present invention will become apparent to those ordinarily skilled in the art upon review of the following description of embodiments of the invention in conjunction with the accompanying figures.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Reference will now be made to the accompanying drawings which show, by way of example, embodiments of the present invention, and in which:
[0009] Fig. 1 shows an isometric view of a controllable valve according to an embodiment of the present invention;
[00010] Fig. 2 is a sectional isometric view of the controllable valve of Fig.
1 taken along the line A-A;
[00011] Fig. 3(a) is sectional view of the controllable valve of Fig. 1 taken along line A-A and shown with the valve mechanism configured in an open or flow position;
[00012] Fig. 3(b) is another sectional view of the controllable valve of Fig.
1 taken along the line A-A and shown with the valve mechanism configured in a closed or constricted flow position;
[00013] Fig. 4 is a isometric view of a valve mechanism for the controllable valve of Fig. 1 according to an embodiment of the present invention; and [00014] Fig. 5(a) shows an isometric view of a flow conduit configuration for the controllable valve of Fig. 1 according to an embodiment of the present invention;
[00015] Fig. 5(b) is a side view of the flow conduit configuration of Fig.
5(a); and [00016] Fig. 5(c) is a top view of the flow conduit configuration of Fig.
5(a).
[00017] Like reference numerals indicate like or corresponding elements or components in the drawings.
DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION
[00018] Reference is made to Fig. 1, which shows in diagrammatic form a controllable valve according to an embodiment of the present invention. The controllable valve is indicated generally by reference 100 and comprises a main body 110 which according to an embodiment is coupled to a base 120 or other support structure. As shown, the controllable valve 100 comprises an input port or module 130 coupled to one end of the main body 110 and an output port or module 140 coupled or attached to the other end of a the main body 110. The input port 130 comprises an input or inlet 132 (as shown in Fig.
2) and is configured to attach to a pipe or other equipment in a flow control application or configuration. The output port 140 comprises an output or outlet 142 (as also shown in Fig. 2) and is configured to attach to a pipe or other equipment in the flow control application.
[00019] As shown in Figs. 2 and 5(a) to 5(c), the main body 110 comprises a housing or outer structure 112 and a plurality of conduit flow tubes indicated generally by reference 150. The conduit flow tubes 150 are configured to couple the input or inlet 132 to the output or outlet 142 and provide a flow path, e.g. for a gas, vapour or a liquid, from the input port 130 to the output port 140. According to an embodiment, the controllable valve 100 comprises four conduit flow tubes 150, indicated individually by references 150a, 150b, 150c and 150d, as shown in Figs. 5(a) to 5(c). According to another aspect, the conduit flow tubes 150 may comprise shape or contour features to provide particular flow characteristics.
[00020] As also shown in Fig. 1, the input port or module 130 includes a high pressure (e.g. upstream) port or tap 131, and the output port or module 140 includes a low pressure (e.g. downstream) port or tap 141. The taps 131, 141 are operatively coupled to a flow-sensor 310 (Fig. 3), which is operatively coupled to a controller 320 (Fig.
3). The controller 320 comprises a control device (e.g. a programmable logic device or microprocessor based device executing firmware or other executable code) that is configured to measure or receive signals or data received from the flow-sensor 310 and calculate pressure differentials and other variables associated with the operation of the valve 100 and/or control the operation of the valve mechanism, for example, as described in more detail below. The particular implementation and programming details associated with the controller 320 for performing the functions and operations as herein described are readily within the understanding of one skilled in the art.
[00021] Reference is next made to Fig. 2, which shows a sectional view of the controllable valve 100 according to an embodiment of the invention. As shown, the controllable valve 100 comprises a valve mechanism which is configured in the main body 110 and indicated generally by reference 200. According to an embodiment, the valve mechanism 200 comprises a plunger 210 and an actuator mechanism 220. As will be described in more detail below, the actuator mechanism 220 is operatively connected to the plunger 210 and configured to move the plunger 210 in a direction indicated by arrow 221 to open, close and/or constrict flow from input port 132 to the output port 142.
According to an embodiment, the plunger 210 comprises a forward section 212 having a shape or configuration for providing flow characteristics, e.g. an aerodynamic shape.
According to an embodiment and as depicted in Fig. 2, the output port 142 comprises a Venturi chamber or nozzle as indicated generally by reference 144, which can be configured to provide certain flow characteristics. It will, however, be appreciated that other configurations for the output port 142 (and/or the input port 132) may be utilized based on desired flow or other operational characteristics. According to another aspect, the shape, contour or configuration of the plunger 210 is matched or optimized (e.g.
complimentary) to the shape or contour of the Venturi nozzle.
[00022] According to an embodiment and as shown in Fig. 4, the actuator mechanism 220 comprises a drive rod or stem 222 which is operatively coupled to a drive mechanism 224 (e.g. a servo or step motor) through a drive shaft 226 and a crank 228.
According to an embodiment, the drive motor 224 is operatively coupled to the controller 320 (Fig. 3) and configured to be responsive to one or more control signals generated by the controller 320, for example, to rotate the drive shaft 226 in a clockwise and/or counter clockwise direction, indicated generally by reference 225, which in turn, moves the drive rod 222 up in the direction indicated by arrow 227 and down in the direction indicated by arrow 229.
As shown in Fig. 4, the drive rod 222 is coupled to a drive block 230. The drive block 230 is fitted in a slot 212 in the plunger 210 and further comprises a drive slot 232 which engages a drive pin or shaft 214 coupled to the body of the plunger 210. The drive block k-6-230 and the pin 214 function together to translate the substantially vertical motion of the drive stem 222 into a substantially horizontal motion, which moves the plunger 210 in a forward direction indicated by arrow 211 and a reverse direction indicated by arrow 213.
According to an exemplary embodiment, the controller 320, the flow sensor 310 and the drive mechanism 224 (and the drive shaft 226 and the crank 228) are configured or housed in the base or support structure 120 (Fig. 1).
[000231 Reference is next made to Fig. 3(a), which shows the valve 100 in an open position, i.e. the plunger 210 is moved in the direction of arrow 213 away from the opening of the Venturi nozzle 144, which allows flow through the conduit flow tubes 150 between the input port 132 and the output port 142. According to the exemplary implementation depicted, the controller 320 is configured to generate one or more control signals for the drive motor 224 (Fig. 4) to move the drive rod 222 in the direction 227, which through the resultant movement of the drive block 230 moves the plunger backwards (i.e. towards the input port 132) and opens or allows flow through the Venturi nozzle 144. In this position, the controllable valve 100 is in the fully open position and gas (or liquid, or vapour) will flow through the conduit flow tubes 150 from the input port 132 to the output port 142.
[00024] Reference is next made to Fig. 3(b), which shows the valve 100 in a closed position. In the closed position, the plunger 210 is moved forward, i.e. in the direction of arrow 211, until forward section 212 of the plunger 210 closes or seals the opening to the Venturi nozzle 144. This prevents flow through the conduit flow tubes 150 from the input port 132 to the output port 142. According to the exemplary implementation depicted in Fig. 3(b), the controller 320 is configured to generate one or more control signals for the drive motor 224 (Fig. 4) to move the drive rod 222 in the direction 229, which also moves the drive block 230 and engages the drive pin 214 to move the plunger 210 in the direction of arrow 211. The plunger 210 is moved forward until the forward section 212 completely seals or blocks the opening of the Venturi nozzle thereby preventing flow between the input port 132 and the output port 142, and effectively closing or shutting off the control valve 100.
[00025] According to another aspect, the movement and positioning of the plunger 210 is controlled to provide a partial closing or reduced flow characteristic for the control valve 100. For example, the controller 320 is configured (e.g. through executable code or firmware) to monitor (e.g. in real time) the pressure differential, i.e. using the flow sensor outputs 131 and 141, and the plunger 210 is positioned according to a desired pressure differential or desired flow rate or a variable flow rate.
[00026] The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Certain adaptations and modifications of the invention will be obvious to those skilled in the art.
Therefore, the presently discussed embodiments are considered to be illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. A controllable valve comprising:
an input port;
an output port, said output port comprising a flow control nozzle;
a plurality of conduit flow tubes, each of said conduit flow tubes having one end coupled to said input port and another end coupled to said output port;
a valve control module comprising a plunger, said plunger being configured to block flow through said flow control nozzle in a closed position and permit flow through said flow control nozzle in an open position; and said valve control module comprising an actuator operatively coupled to said plunger and configured to move said plunger between said closed position and said open position so as to control flow through said plurality of conduit flow tubes between said input port and said output port.
an input port;
an output port, said output port comprising a flow control nozzle;
a plurality of conduit flow tubes, each of said conduit flow tubes having one end coupled to said input port and another end coupled to said output port;
a valve control module comprising a plunger, said plunger being configured to block flow through said flow control nozzle in a closed position and permit flow through said flow control nozzle in an open position; and said valve control module comprising an actuator operatively coupled to said plunger and configured to move said plunger between said closed position and said open position so as to control flow through said plurality of conduit flow tubes between said input port and said output port.
2. The controllable valve as claimed in claim 1, wherein said valve control module comprises a controller and a flow sensor, said flow sensor being configured for generating flow characteristics data for said controller, and said controller being configured for controlling said actuator to move said plunger in a range of positions between said closed position and said open position based on said flow characteristics data.
3. The controllable valve as claimed in claim 1, wherein said flow control nozzle comprises a Venturi chamber, and wherein said plunger comprises a contour complimentary to said Venturi chamber, so as to effectively seal said flow control nozzle in said closed position.
4. The controllable valve as claimed in claim 3, wherein said plurality of conduit flow tubes comprise four conduit flow tubes.
5. The controllable valve as claimed in claim in claim 2, wherein said actuator comprises a step motor, and said controller is configured to operate said step motor in incremental movements and thereby move said plunger incrementally between said closed position and said open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2810588 CA2810588A1 (en) | 2013-03-27 | 2013-03-27 | A shut-off and control valve with flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2810588 CA2810588A1 (en) | 2013-03-27 | 2013-03-27 | A shut-off and control valve with flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2810588A1 true CA2810588A1 (en) | 2014-09-27 |
Family
ID=51610617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2810588 Abandoned CA2810588A1 (en) | 2013-03-27 | 2013-03-27 | A shut-off and control valve with flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2810588A1 (en) |
-
2013
- 2013-03-27 CA CA 2810588 patent/CA2810588A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20160329 |