WO1999024742A1 - Nouveau robinet rotatif peu sensible a la force d'ecoulement - Google Patents

Nouveau robinet rotatif peu sensible a la force d'ecoulement Download PDF

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Publication number
WO1999024742A1
WO1999024742A1 PCT/JP1998/004417 JP9804417W WO9924742A1 WO 1999024742 A1 WO1999024742 A1 WO 1999024742A1 JP 9804417 W JP9804417 W JP 9804417W WO 9924742 A1 WO9924742 A1 WO 9924742A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve element
opening
flow
cylinder
Prior art date
Application number
PCT/JP1998/004417
Other languages
English (en)
Japanese (ja)
Inventor
Mohamed Ahmed Elgamil
Original Assignee
El-Debs, Sobhi, Fouad
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EG119697A external-priority patent/EG22386A/xx
Application filed by El-Debs, Sobhi, Fouad filed Critical El-Debs, Sobhi, Fouad
Publication of WO1999024742A1 publication Critical patent/WO1999024742A1/fr

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
    • 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
    • F16K3/30—Details
    • F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
    • 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
    • F16K3/04—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 pivoted closure members
    • F16K3/06—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 pivoted closure members in the form of closure plates arranged between supply and discharge passages

Definitions

  • New type fluid rotary pulp with low sensitivity to flow force
  • the present invention relates to fluid valves and valve components, and more particularly to single-tally plate valves.
  • Fluid control plays an essential role in many applications that cover a wide range of activities, from essential to everyday life to industrial activities. There is an industrial need to control fluids in power plants, distribution networks and hydro-air systems.
  • the primary component for controlling fluid flow characteristics, such as direction, pressure and velocity, etc., is the valve. Whether these characteristics are controlled or not, the valve consists of a sliding, ,, or flow-dividing valve. Valve lines move to control the area through which the fluid passes according to controlled characteristics (pressure, flow, etc.).
  • Plate valves have long been known for their ease of manufacture and repair. Valve simplicity, repairability, static and dynamic performance, simplicity, and cost are important features that need to be improved when developing a valve.
  • the invention described herein reduces the flow force effect by forming a control orifice for the valve element to reduce the torque generated by the flow force.
  • Fluid force is a natural phenomenon, which arises from the rate of change of the flow rate as directed by the action of the valve. Since the value of the flow force depends on the flow rate, it is difficult to reduce the value, but the effect can be reduced by appropriate design. Opposite partial complements are also widely used to reduce the flow effect.
  • a rotating valve element is used to control the flow orifice region where the effect of the flow force changes to torque.
  • the orifice area is controlled by positioning an opening formed in the valve stem relative to an alignment opening formed in an adjacent fixation element. The shape of the opening is formed to reduce the torque resulting from the flow force.
  • This concept is applicable to disk valve elements with adjacent fixed discs (plate type valves) or cylinder type valve elements with coaxial fixed cylinders. Both configurations are described below.
  • Flow momentum can be used to further compensate for flow forces.
  • This can be achieved by manufacturing a valve that is configured to flow within the passageway of the vanoleb itself, before and after the crest through the orifice It is.
  • the valve consists of a valve element (rotor) that rotates between two fixed disks or coaxial cylinders (stator). In the closed position, the valve element infers the opening in the two stators with a dam.
  • a territory is exposed from the opening of the stator, and this area is proportional to the input rotational displacement.
  • Valve element can have one or more arms However, these arms must be symmetrically arranged around the valve element if the dynamic balance conditions are not met.
  • Fluid is throttled on the side of the arm, which controls the opening, which reduces the pressure on that side.
  • the higher pressure is applied to the side of the arm that faces the throttle side, and the pressure difference creates a torque that closes the valve.
  • the arm is formed to reduce this effect.
  • the arm guides the flow while moving in parallel between them. The flow goes vertically after passing through the orifice. This movement is the same as the flow action of a turbine blade that moves the turbine using the momentum of the flow. With proper design, the flow action can influence the opening of the valve.
  • the result of the two fluid forces, the throttling and the killing force may be a slight closing torque.
  • the torque changes from centering to eccentricity at a certain critical angle, depending on the geometry of the valve element. If the resulting torque is a large eccentric torque, overcompensation can cause instability problems.
  • the arm of the pulp line can also be manufactured with through holes. These holes can be used to carry the flow to a single port located on one side of the arm. Half of the flow is the port side orifice The other half, taken through a chair and squeezed through the other symmetrical orifice, is able to approach its side through a hole.
  • the holes help to increase the arm cross section and area moment, as well as the strength and elasticity of the valve element. In contrast, these holes reduce the inertia and moment of inertia of the stator.
  • the valve element can be designed for two-way, three-way and four-way valve configurations. Two separate three-way valves can control the hydraulic or pneumatic actuator, each of which is fixed directly to one side of the actuator.
  • the valve parameters can be selected to address certain required performance, such as dealing with asymmetric factor units.
  • the design is designed to improve the system efficiency and static and dynamic performance by adjusting the slope of the supplied orifice area (the slope is the constant of the opening that, when multiplied by the input displacement to the valve element, defines the orifice area, This means that the inclination of the orifice storage area is greatly adjusted.
  • valves as sliding valves, but it is difficult to have leak-free performance regardless of the presence or absence of clearance.
  • the engagement surface between the arm of the valve element and the stator opening can be completely closed by slightly inclining the engagement surface with respect to the plane, thereby preventing leakage in the closed position. it can.
  • the valve may require two or more rotors driven by the same shaft when in more than two directions. Each rotor does not necessarily need to rotate with the drive shaft in both directions te about the zero position.
  • the shaft rotor mechanism can be designed so that, when an input is given in one direction, only the necessary rotor is erected, and the rotor is moved to position G by other means such as a centering spring.
  • Valps can be used for fluid direction, flow and / or pressure control II.
  • the disc and cylinder structure are as follows In two paragraphs.
  • the flow force has a component acting perpendicular to its wedge, thereby controlling the opening area value. Since the movement of the valve element is a rotational movement, the effect of the fluid force occurs as a torque to move.
  • the curve of the opening is suggested so that the center of the curved part is as close as possible to the center of rotation of the valve element. Therefore, the torque arm (open distance between the center of the bending portion and the rotation center of the valve element) is kept as short as possible, and the torque generated by the flow force is reduced.
  • the relationship between the rotation input and the generated opening area is preferably a straight line, the width of the generated area is constant, and a radial force is generated from any of the forces (flow, ⁇ property, etc.).
  • the curve equation must be simple in IE description and construction. The following shapes are examples that partially or wholly achieve desirable characteristics.
  • the fluid force produces a torque that tends to rotate the valve element, similar to a disk type.
  • the adjacent valve element disk and stator disk are combined with the shaft cylinder. I can do it.
  • a pair of openings are formed in the cylinder surface, and each cut is inclined to face the other.
  • the flow force acts on the edge of the opening in the vertical direction, so that it becomes a resultant force of the two components. One of them is parallel to the cylinder axis and the other is perpendicular to it.
  • the axial component applies to the cancellation of the opposing openings, but the vertical component is summed. Therefore, the resultant torque is generated only from the vertical E component, and the arm is also controlled. In this way, the effect of the flow force is reduced.
  • FIG. 1 (la) shows the main disc valve element in the open position.
  • FIGS. 1 (1b) and (1c) are perspective views showing two main disc valve elements.
  • FIG. 2 (2a) is a perspective view showing two main cylinder type valve elements.
  • FIG. 2 (2b) is a plan view showing the main cylinder type valve element.
  • FIG. 2 (2c) is a front view showing the main cylinder type valve element.
  • FIG. 3 is a perspective view showing a disc-type main valve element when using flow momentum for further force compensation.
  • the valve is of the two-way type.
  • FIG. 4 is a plan view showing the two main valve elements in the open position.
  • FIG. 5 is a perspective view showing a valve rope and streamlines.
  • FIG. 6 is a diagram illustrating a valve without leakage.
  • FIG. 7 is a diagram showing a four-way rotary valve.
  • the valve of this study consists of one rotating part, ie, the valve stem, which is adjacent to one or two fixed parts (stator). Openings in the stator and valve element create a control orifice. In the closed position, the stator covers the opening of the valve element. When an input rotational displacement is applied to the valve element, a portion of the stator opening is exposed by interference between the valve opening and the valve element. The exposed orifice area is proportional to the input displacement. The flow passes through the orifice and the flow is controlled by controlling the orifice area.
  • This concept applies as an adjacent disk force as shown in FIGS. 1, 3, 4, 5, 6 and 7, or as a coaxial cylinder as shown in FIG. Both configurations are feasible in some designs.
  • Fig. 1 (la) shows the disc valve
  • Fig. 1 (lb) and Fig. 1 (1c) show the valve after the valve cable (1) is separated from the stator (2). It is a perspective view showing a state.
  • the valve element (1) has an opening (3) that matches the opening (4) of the stator (2). In the open position, the area through which the flow passes is the area created by the interference between the openings (3) and (4) and is indicated by the reference (5).
  • Fig. 2 (2a) is a perspective view showing a coaxial cylinder valve
  • Figs. 2 (2a) and 2 (2b) are plan and front views, respectively.
  • the stator may be an external or internal cylinder according to application requirements. If the outer cylinder (11) is a valve element, the stator is the inner cylinder (12). (13) is the key section of the valve, and (14) is the fixed section. Note that each opening consists of a pair of two surface cuts that are sloped opposite the cylinder axis. In the open position, the area through which the flow passes is the ramp created by the interference of the openings (13) and (14) and is designated by the reference (15).
  • the valve of the present invention comprises a valve element (21) having one or more arms (in this case, two). Two stators (22 and 23), upper and lower parts are provided, in which case the valve element arm (21) covers the stator opening (27).
  • a shaft (24) is provided to pass through the hole (25) in the center of the stator. These holes and shaft dimensions allow the shaft to rotate without moving the stator.
  • the shaft (24) drives the valve element through the hole (26) and, when rotated in the opening direction, moves the valve element with the shaft, and when rotated in the opposite direction, does not move with the shaft. Can be designed. I want to be admired that the rotation angle is small.
  • FIG. 4 is a plan view showing a valve element and a stator group.
  • an angular input displacement (28) is applied to the valve element, the input value controls the orifice area (29), through which the flow passes.
  • Control orifice The control region is adjusted according to the required control action.
  • FIG. 6 shows a leak-free design
  • FIG. 6 (6a) is a perspective view.
  • (31) is one of the deformed stators having an oblique opening surface
  • (32) is a completely This is the arm position
  • (33) is an arm at the open position when moving in the (34) direction to expose the area of width (35).
  • FIG. 7 shows a four-way valve in which the rotor and spacer are coplanar.
  • the rotor (represented by a left-sloping hatching ( ⁇ )) has a hole that connects the upper and lower loadboats (enclosed in bold lines) and the load And from the source bottle.
  • the rotator rotates clockwise.
  • Four orifices are generated depending on the rotation angle value. Two of the orifices connect the two load ports P la and P 1b to the Jiro (tank or source) port.
  • P 1 a and P lb may squeeze two separate factories or tie the same factor together.
  • the other two orifices also connect two mouth ports: P2a and P2b to internal (supply or tank) ports. It is up to the designer to connect the external port to the tank and the internal port to the source, or vice versa. For example, distributing the external port to the tank makes it possible to make the inclination of the tank area larger than the inclination of the supply area. And improve efficiency and dynamic and static performance as described above.
  • the rotary valve of the present invention is configured to reduce the torque acting on the valve by the flow force. As a result, the resistance to the valve element can be reduced, so that the valve can be driven by a small driver, and a highly efficient valve system can be achieved.

Abstract

La présente invention concerne un robinet rotatif dans lequel un stator est placé adjacent à un élément de robinet, l'élément de robinet tourne autour d'un centre de rotation et présente une forme permettant de réduire le couple auquel il est soumis en raison de la force d'écoulement, une ouverture de passage fluidique étant formée dans l'élément de robinet et dans le stator ou dans le stator uniquement de façon que lorsque l'élément de robinet tourne, la zone ouverte de l'ouverture varie et règle la vitesse d'écoulement du fluide, et la forme de courbe d'un bord de l'ouverture étant conçue pour réduire le couple qui s'exerce sur l'élément de robinet lorsque le fluide passe à travers l'ouverture en raison de la force d'écoulement de ce dernier.
PCT/JP1998/004417 1997-11-12 1998-09-30 Nouveau robinet rotatif peu sensible a la force d'ecoulement WO1999024742A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EG1997-11-1197 1997-11-12
EG1997-11-1196 1997-11-12
EG119697A EG22386A (en) 1997-11-12 1997-11-12 Turbo valve of low sensitivity to flow forces
EG119797 1997-11-12

Publications (1)

Publication Number Publication Date
WO1999024742A1 true WO1999024742A1 (fr) 1999-05-20

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ID=26069174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/004417 WO1999024742A1 (fr) 1997-11-12 1998-09-30 Nouveau robinet rotatif peu sensible a la force d'ecoulement

Country Status (1)

Country Link
WO (1) WO1999024742A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010522044A (ja) * 2007-03-23 2010-07-01 スリーエム イノベイティブ プロパティズ カンパニー レスピレーターの流量制御装置及び方法
US8936022B2 (en) 2007-03-23 2015-01-20 3M Innovative Properties Company Air delivery apparatus for respirator hood
TWI586475B (zh) * 2015-05-08 2017-06-11 劉千于 閥片製造方式
US9868001B2 (en) 2007-10-05 2018-01-16 3M Innovative Properties Company Respirator flow control apparatus and method
US10391337B2 (en) 2007-11-12 2019-08-27 3M Innovative Properties Company Respirator assembly with air flow direction control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53114531A (en) * 1977-03-12 1978-10-06 Kubota Ltd Rotary regulating valve
JPS53148029A (en) * 1977-05-27 1978-12-23 Osaka Gas Co Ltd Low noise valve
JPS6058970U (ja) * 1983-09-29 1985-04-24 バブコツク日立株式会社 流量調節装置
JPS622075A (ja) * 1985-06-07 1987-01-08 ハ−ペ−・ウント・ハ−ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツンク ガスおよび液流体の制御機器
JPH0650450A (ja) * 1992-07-28 1994-02-22 Matsushita Electric Works Ltd モータ開閉式バルブ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53114531A (en) * 1977-03-12 1978-10-06 Kubota Ltd Rotary regulating valve
JPS53148029A (en) * 1977-05-27 1978-12-23 Osaka Gas Co Ltd Low noise valve
JPS6058970U (ja) * 1983-09-29 1985-04-24 バブコツク日立株式会社 流量調節装置
JPS622075A (ja) * 1985-06-07 1987-01-08 ハ−ペ−・ウント・ハ−ペ−・ヒエミ−−シユテルグリ−デル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツンク ガスおよび液流体の制御機器
JPH0650450A (ja) * 1992-07-28 1994-02-22 Matsushita Electric Works Ltd モータ開閉式バルブ

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010522044A (ja) * 2007-03-23 2010-07-01 スリーエム イノベイティブ プロパティズ カンパニー レスピレーターの流量制御装置及び方法
US8936022B2 (en) 2007-03-23 2015-01-20 3M Innovative Properties Company Air delivery apparatus for respirator hood
US10137320B2 (en) 2007-03-23 2018-11-27 3M Innovative Properties Company Respirator flow control apparatus and method
US11130008B2 (en) 2007-03-23 2021-09-28 3M Innovative Properties Company Respirator flow control apparatus and method
US9868001B2 (en) 2007-10-05 2018-01-16 3M Innovative Properties Company Respirator flow control apparatus and method
US10391337B2 (en) 2007-11-12 2019-08-27 3M Innovative Properties Company Respirator assembly with air flow direction control
TWI586475B (zh) * 2015-05-08 2017-06-11 劉千于 閥片製造方式

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