WO2013169598A1 - Proportional controlled orifice for metering granular material - Google Patents
Proportional controlled orifice for metering granular material Download PDFInfo
- Publication number
- WO2013169598A1 WO2013169598A1 PCT/US2013/039539 US2013039539W WO2013169598A1 WO 2013169598 A1 WO2013169598 A1 WO 2013169598A1 US 2013039539 W US2013039539 W US 2013039539W WO 2013169598 A1 WO2013169598 A1 WO 2013169598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- orifice
- seat
- valve element
- shaped
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/54—Gates or closures
- B65D90/58—Gates or closures having closure members sliding in the plane of the opening
- B65D90/582—Gates or closures having closure members sliding in the plane of the opening having a rotational motion
- B65D90/585—Gates or closures having closure members sliding in the plane of the opening having a rotational motion around an axis perpendicular to the valve port
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/03—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with a closure member in the form of an iris-diaphragm
Definitions
- Fracturing mixtures include solid materials called proppants.
- Proppants are solid particles mixed in dry form with fracturing fluid to hold fractures open after a hydraulic fracturing treatment.
- man-made or specially engineered proppants such as resin-coated sand or high-strength ceramic materials like sintered bauxite, may also be used.
- dry particulate material is used to refer to particulate materials which cannot be pumped or handled as a fluid.
- sliding gate valve is used to refer to a valve having a planar or wedge shaped a valve element that moves into and out of the flow path and cooperates with a fixed seat to meter flow through the valve orifice.
- the area defined between the valve and its seat is sometimes called an "orifice.”
- Sliding gate valves can be controlled (opened and closed) manually or by electrical or fluid actuators.
- the ratio of the smallest dimension of an orifice is critical to the jamming probability caused by material bridging. T he combination of the orifice area (size) and the critical dimension (smallest orifice dimension) contribute to the flow rale of material through the orifice.
- Typical sliding gate valves used to control the flow of materials have quadrilateral- shaped orifices. These gate valves are simple and easy to use to meter material flow by sliding the valve element into or out of the flow path to adjust the orifice size,
- the width of the orifice is a fixed dimension and, as the valve opens, a quadrilateral orifice is created. Accordingly, these gate valves will have a large orifice area, compared to the smallest dimension of the orifice as the gate opens. Once the gate valve is open far enough to exceed the distance at which bridging occurs or far enough to diminish the entry effects of the minimum optimum dimension, the total, open area of the orifice allows more material to pass than is desired. Accordingly, these gate valves cannot accurately meter small flow rates.
- a gate valve with an orifice that varies in two dimensions as the valve element is moved.
- the gate valve orifice is quadrilateral shaped and varies in both width and length as the valve element is moved.
- a plurality of valve elements are mounted to pivot into and out of the flow to vary the orifice size in both length and width dimensions.
- Figure 1 is a schematic view, illustrating a typical particulate material supply system for use drilling, completion operations on a well according to the disclosure of the present invention
- Figure 2 is a top plan view of a prior art sliding gate valve, illustrating the valve in the closed position
- Figure 3 is a cross-sectional view of the prior art valve illustrated in Figure 2 taken along line 2-2, looking in the direction of the arrows;
- Figure 4 is a top plan view of the orifice portion of a sliding gate valve, illustrated in the closed position according to the present invention
- Figure 5 is a top plan view of the orifice portion of the sliding gate valve of Figure 4 illustrated in the partially opened or metering position according to the present invention
- Figure 6 is a top plan view of the orifice portion of the circle orifice gate valve, illustrated in the fully open position according to the present invention.
- Figure 7 is a top plan view of the orifice portion of the circle orifice gate valve of Figure 6, illustrated in the partially closed or metering position according to the present invention.
- gate valves are positioned to control the gravity flow of dry solid particulate material into a mixing chamber where the particulate is mixed in proportion with other components, including liquid components.
- the sliding gate valve of the present invention is characterized by being able to accurately meter the gravity flow of dry particulate materials and, in particular, to accurately meter small quantities of dry solid materials.
- System 10 for use in preparing mixtures for use in gas well servicing and drilling.
- System 10 comprises a hopper 12 for containing a quantity of dry particulate material, such as a proppant.
- a conveyor 14 is typically used to load hopper 12.
- the particulate material flows by gravity through the valve 16 to a mixer 18.
- the valve 16 is typically a sliding gate valve which is used to meter the flow of material into the mixer 18.
- One or more fluid components are supplied to the mixer 18 from a tag 22 through a fluid pump 20.
- a supply pump 24, in the form of a positive displacement pump, provides particulate fluid mixture to the well 26.
- Valve 16 of conventional construction is illustrated in Figures 2 and 3 in the slightly open position.
- Valve 16 comprises a frame 30 having with the feed opening and a flange surrounding the opening that is suitable for attachment of the valve 16 to the bottom of the hopper 12.
- the quadrilateral- shaped frame 30 surrounds the feed opening and supports a valve seat 32.
- the valve element 34 comprises a sliding plate which, when the valve is opened, cooperates with the valve seat 32 to define the valve orifice 38.
- a quadrilateral- shaped orifice 38 is formed.
- the width dimension (W) of the orifice is defined transverse to the valve element's direction of movement, as illustrated by arrow 40.
- the orifice length dimension (L) is defined parallel to the direction of movement 40.
- the area (A) is computed by multiplying the length by the width.
- An actuator assembly 36 is connected to the valve element 34.
- the actuator assembly 36 is operably associated with the valve element 34 to selectively move it into and out of the feed opening.
- Actuator assembly 36 is an electrically powered actuator 42 that can be operated to control the position of the valve element 34.
- the orifice area A of the valve will be small. As illustrated in Figure 2, as the valve opens, a rectangular orifice is formed with a length (L) that is multiples less than the width (W). At smaller areas, the length of the orifice is the critical, smallest dimension and is more likely to experience material bridging.
- FIG. 4 an embodiment of a sliding sleeve gate valve 116 is illustrated.
- the valve is illustrated in the closed position, and in Figure 5, the valve is illustrated in the partially open position.
- the valve seat 132 is in the form of a plate, positioned in the feed opening.
- the seat 132 has a right-angled, triangular- shaped opening 133, formed there through which particulate material can flow when the valve is open.
- the valve element 134 is mounted to slide in the direction of arrow 140 with respect to the seat 132. As illustrated, the valve element 134 has a right-angled, triangular- shaped cutout portion 135.
- orifice 138 is substantially square shaped, with equal length sides.
- the orifice area (A) is defined by the square of any one side. It is envisioned, however, that depending on the shapes of the triangular cutouts, the orifice can take on different shapes and proportions.
- the lengths of the four sides (S) defining the orifice 138 all increase equally and the length (L) of the orifice becomes greater in the same amount as the width (W).
- the smallest or critical dimension of a square- shaped orifice is greater than the smallest dimension of a rectangular shaped orifice. This allows the sliding gate valve embodiment illustrated in Figure 5 to operate at lower flow rates than other quadrilateral orifice shapes.
- orifice 138 is formed with a small cross-section area but with no one dimension substantially smaller than the other dimensions.
- the gate valve orifice 138 is quadrilateral shaped and varies both width and length as the valve element is moved.
- a particulate material gate valve 216 is illustrated in Figures 6 and 7.
- valve 216 is shown in the completely open condition.
- valve 216 is shown in the partially open or metering position.
- valve 216 is in the form of a circle orifice gate valve.
- Valve 216 comprises an annular seat 232 that surrounds a circular particulate material feed opening.
- a plurality of adjacent pedals-shaped valve elements 234 are mounted to pivot into and out of the material feed opening.
- six separate elements are shown, however, more or less elements could be utilized.
- each of the valve elements 234 comprise a flat plate.
- the valve elements 234 are formed with arcuate or curved, interior facing edges 235, however, it is envisioned that the interior edges could be defined by one or more straight lines or other shapes.
- the valve elements 234 are illustrated in Figure 6, positioned out of the feed opening and under the seat 232.
- the valve elements 234 are mounted to rotate about pivots 239.
- An actuator (not illustrated) is operably connected to the valve elements 234 to rotate the elements in the forward and reverse directions of arrow 240.
- the valve elements move in the direction of arrow 240, the cross-sectional area of the orifice 238 becomes smaller.
- the elements define an orifice that is roughly polygon shaped. The more valve elements are present in the valve, the more the orifice approximates a circle. As will be appreciated, as the shape approaches a circular shape, the orifice surface effects would be reduced. As in the above-described embodiment, this shape of the orifice 238 is conducive to reducing bridging of the particulate material at lower flow rates.
- valve embodiments illustrated and described herein can be utilized in the system illustrated in Figure 1 to meter small quantities of particulate materials, while reducing material bridging and jamming.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013259914A AU2013259914A1 (en) | 2012-05-10 | 2013-05-03 | Proportional controlled orifice for metering granular material |
EP13723628.7A EP2847499A1 (en) | 2012-05-10 | 2013-05-03 | Proportional controlled orifice for metering granular material |
CA2873245A CA2873245A1 (en) | 2012-05-10 | 2013-05-03 | Proportional controlled orifice for metering granular material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/468,473 | 2012-05-10 | ||
US13/468,473 US20130299523A1 (en) | 2012-05-10 | 2012-05-10 | Proportional controlled orifice for metering granular material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013169598A1 true WO2013169598A1 (en) | 2013-11-14 |
Family
ID=48464112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2013/039539 WO2013169598A1 (en) | 2012-05-10 | 2013-05-03 | Proportional controlled orifice for metering granular material |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130299523A1 (en) |
EP (1) | EP2847499A1 (en) |
AU (1) | AU2013259914A1 (en) |
CA (1) | CA2873245A1 (en) |
WO (1) | WO2013169598A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9918455B2 (en) * | 2015-08-20 | 2018-03-20 | Chiou Yeong Wu | Sparrow stop poultry feeder |
US10563774B2 (en) | 2017-06-30 | 2020-02-18 | Intelligent Agricultural Solutions Llc | Sectional control device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1087419B (en) * | 1956-01-27 | 1960-08-18 | Waldenmaier J E H | Regulating slide for lines carrying thick matter |
WO1997014938A1 (en) * | 1995-10-17 | 1997-04-24 | Ishida Europe Manufacturing Limited | Improvements in and relating to weighing machines |
WO1997028390A1 (en) * | 1996-02-02 | 1997-08-07 | ABB Fläkt Oy | Flow rate control element for ducts |
US5806725A (en) * | 1994-04-20 | 1998-09-15 | Ishida Co., Ltd. | Dispensing machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1618297A1 (en) * | 2003-05-01 | 2006-01-25 | Bishop Innovation Pty. Limited | Throttle valve |
US8662410B2 (en) * | 2005-11-03 | 2014-03-04 | GM Global Technology Operations LLC | Multiple color powder paint application |
US8215613B2 (en) * | 2008-06-06 | 2012-07-10 | Neil Cheung | Virtual variable valve intake and exhaust for the internal combustion engine |
-
2012
- 2012-05-10 US US13/468,473 patent/US20130299523A1/en not_active Abandoned
-
2013
- 2013-05-03 WO PCT/US2013/039539 patent/WO2013169598A1/en active Application Filing
- 2013-05-03 EP EP13723628.7A patent/EP2847499A1/en not_active Withdrawn
- 2013-05-03 CA CA2873245A patent/CA2873245A1/en not_active Abandoned
- 2013-05-03 AU AU2013259914A patent/AU2013259914A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1087419B (en) * | 1956-01-27 | 1960-08-18 | Waldenmaier J E H | Regulating slide for lines carrying thick matter |
US5806725A (en) * | 1994-04-20 | 1998-09-15 | Ishida Co., Ltd. | Dispensing machine |
WO1997014938A1 (en) * | 1995-10-17 | 1997-04-24 | Ishida Europe Manufacturing Limited | Improvements in and relating to weighing machines |
WO1997028390A1 (en) * | 1996-02-02 | 1997-08-07 | ABB Fläkt Oy | Flow rate control element for ducts |
Also Published As
Publication number | Publication date |
---|---|
AU2013259914A1 (en) | 2014-08-28 |
CA2873245A1 (en) | 2013-11-14 |
US20130299523A1 (en) | 2013-11-14 |
EP2847499A1 (en) | 2015-03-18 |
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