WO1994005940A1 - Vanne du type a siege cylindrique, a siege conique ou a tiroir - Google Patents
Vanne du type a siege cylindrique, a siege conique ou a tiroir Download PDFInfo
- Publication number
- WO1994005940A1 WO1994005940A1 PCT/FR1993/000810 FR9300810W WO9405940A1 WO 1994005940 A1 WO1994005940 A1 WO 1994005940A1 FR 9300810 W FR9300810 W FR 9300810W WO 9405940 A1 WO9405940 A1 WO 9405940A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- movable element
- seat
- interior chamber
- control rod
- Prior art date
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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Definitions
- Cylindrical seat, conical seat or slide valve type Cylindrical seat, conical seat or slide valve type.
- the present invention relates to a valve of the cylindrical seat type, with conical seat or with drawer comprising a control rod and a body in which are formed a central cavity constituting said seat for a cylindrical mobile element, conical or with parallel faces, a first connection end piece for coupling this seat to an inlet duct, and at least one second connection end piece for coupling this seat to an outlet duct, this movable element being arranged to move between a first closed position of said seat for close the passage between the two connection ends and a second position for opening this seat to put the two connection ends in communication.
- the present invention proposes to overcome these drawbacks by providing a valve of the type specified above and making it possible to reduce the differential pressure before the valve is fully opened or closed. As this pressure is reduced, turbulence and vibration become very low and the risk of damage is reduced accordingly.
- a valve as defined in the preamble characterized in that said movable element comprises an interior chamber, an inlet channel arranged to put said first connection end piece in communication with the interior chamber, at least one outlet channel. of reduced section to put said interior chamber in communication with said second connection endpiece and a movable shutter secured to said control rod to ensure successively the opening between the inlet channel and the outlet channel through the interior chamber, then the displacement of said movable element upon opening or vice versa upon closing of the valve.
- the movable shutter has a cross section greater than that of the control rod and the movable element is provided with at least one stop which limits the travel of the movable shutter in the chamber. inside between a position for closing the passage between the inlet channel and the outlet channel and a position for gradually opening this passage.
- Said stopper is advantageously constituted by an annular part mounted at one end of the movable element, this annular part being provided with a central opening corresponding to the section of the control rod.
- the movable element is provided with a series of outlet channels. Said outlet channels are preferably parallel to each other.
- the interior chamber is cylindrical and the movable shutter is a cylinder, its section being substantially equal to that of the interior chamber.
- the movable element has two parallel walls provided with slots regularly spaced parallel transverse and the movable shutter is constituted by a sliding plate disposed in the interior chamber defined by the two parallel walls, and comprising a series of regularly spaced parallel transverse slots.
- control rod comprises a stop washer integral with the latter and a spring placed around the control rod, between the stop stop and the stop washer, is arranged to ensure a constraint on the movable element.
- FIG. 1 is a schematic view of a valve with conical seat according to the invention, in the closed position
- FIG. 2 is a view of the valve of FIG. 1 in a position corresponding to the start of the intermediate opening
- FIG. 3 is a view of the valve of the preceding figures, in the open position
- FIG. 1 is a schematic view of a slide valve according to the invention, in the closed position
- FIG. 5 is a view of the valve of FIG. L. in a position corresponding to the start of the opening
- FIG. 6 is a view of the valve of FIGS. and 5 in the open position
- FIG. 7 is a graphical representation of the differential pressure and of the capacity of the valve during the entire opening phase.
- the valve 10 comprises a body 11 in which is formed a central cavity constituting a seat 12 for a conical movable element 13, a first connection end piece 14 for coupling this seat to an inlet duct and a second connection endpiece 15 for coupling this seat to an outlet conduit.
- the seat 12 can also be cylindrical.
- the movable member has the same geometry.
- the movable element 13 comprises an interior chamber 16, at least one inlet channel 17 arranged to put said first connection endpiece 14 in communication with the interior chamber 16 and at least one outlet channel 18 of reduced section arranged to place in communication, said interior chamber 16 with said second connection end piece 15.
- the movable element 13 comprises several outlet channels 18, mutually parallel.
- the interior chamber 16 contains a movable shutter 19 integral with a control rod 20 for successively opening between the inlet channel and the outlet channels through the interior chamber.
- the movable element 13 further comprises a stop stop 21 constituted for example by a ring fixed by screws 21a at its upper end and whose role will be explained in more detail below.
- the user maneuvers manually, or by mechanical means, the control rod 20, which has the effect of bringing the movable shutter 19 progressively to the high position. 11 then there is a communication between the inlet channel 17 and the outlet channels 18 through the interior chamber 16. Due to their reduced section, the outlet channels generate a high pressure drop which has the effect of reducing differential pressure between the valve inlet pipe and the outlet pipe, thereby reducing turbulence and other stresses causing valve erosion and noise.
- this valve comprises a body 11 'provided with a central cavity defining a seat 12', a movable element 13 ', a first connection nozzle 14' and a second connection nozzle 15 '.
- the movable element 13 ' has two parallel walls which define an interior chamber 16' and which are provided with parallel transverse slots 17 'and 18' regularly arranged.
- the slots 17 ' together constitute said inlet channel and the slots 18' together constitute said outlet channel.
- the inner chamber 16 ' contains a movable shutter 19' integral with a control rod 20 '.
- a stopper 21 ' can be formed by the upper part of the body of the movable element 13'.
- the control rod 20 ' carries a stop washer 22 integral with the control rod, as well as a spring 23 placed coaxially on this rod between the stop stop 21' and the stop washer 22.
- the shutter 19 ' is constituted by a sliding plate disposed between the two parallel walls defining the inner chamber 16' of the movable element 13 'which comprises a series of transverse slots 19' a parallel to each other and regularly spaced. These slots are arranged so that in the closed position, they are closed by the parallel walls of the movable element 13 'and that in the open position, they are arranged opposite the slots of these walls.
- the movable shutter 19' when the valve 10 'is closed, the movable shutter 19' is in the low position so that there is no connection between the inlet channels 17 'and the outlet channels 18' ce which seals the valve 10 '(see Figure 4).
- the user operates the control rod 20 ′ which has the effect of bringing the movable shutter 19 ′ to the high position by cocking the spring 23 which has the function of blocking the movable element 13 ′ in the low position.
- 11 then exists a connection between the inlet channels 17 'and the outlet channels 18' through the interior chamber 16 'through the median inlet of the slots 19'a of the movable shutter. This connection ensures a high pressure drop which has the effect of reducing the differential pressure between the inlet pipe of the valve and the outlet pipe.
- FIG. 7 represents the curves illustrating the capacity CV and the differential pressure P in the valve during an opening cycle.
- the valve can fulfill a "metering" function.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6506922A JPH07503523A (ja) | 1992-08-28 | 1993-08-13 | 円筒状座部形、円錐形座部形、又はスライド形のバルブ |
EP93919385A EP0612389A1 (fr) | 1992-08-28 | 1993-08-13 | Vanne du type a siege cylindrique, a siege conique ou a tiroir |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9210405A FR2695184B1 (fr) | 1992-08-28 | 1992-08-28 | Vanne du type à siège cylindrique, à siège conique ou à tiroir. |
FR92/10405 | 1992-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994005940A1 true WO1994005940A1 (fr) | 1994-03-17 |
Family
ID=9433094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1993/000810 WO1994005940A1 (fr) | 1992-08-28 | 1993-08-13 | Vanne du type a siege cylindrique, a siege conique ou a tiroir |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0612389A1 (fr) |
JP (1) | JPH07503523A (fr) |
FR (1) | FR2695184B1 (fr) |
WO (1) | WO1994005940A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2586958C1 (ru) * | 2014-11-21 | 2016-06-10 | Общество с ограниченной ответственностью Научно-производственная фирма "МКТ-АСДМ" | Запорно-регулирующее устройство |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3665964A (en) * | 1971-01-27 | 1972-05-30 | Westinghouse Electric Corp | Steam turbine control valve structure |
US3955591A (en) * | 1975-03-05 | 1976-05-11 | Baumann Hans D | Insert type sliding gate valve |
FR2417702A1 (fr) * | 1978-02-17 | 1979-09-14 | Zikesch Gmbh C H | Dispositif de sectionnement, notamment vanne de sectionnement, pour fluides |
-
1992
- 1992-08-28 FR FR9210405A patent/FR2695184B1/fr not_active Expired - Fee Related
-
1993
- 1993-08-13 JP JP6506922A patent/JPH07503523A/ja active Pending
- 1993-08-13 EP EP93919385A patent/EP0612389A1/fr not_active Withdrawn
- 1993-08-13 WO PCT/FR1993/000810 patent/WO1994005940A1/fr not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3665964A (en) * | 1971-01-27 | 1972-05-30 | Westinghouse Electric Corp | Steam turbine control valve structure |
US3955591A (en) * | 1975-03-05 | 1976-05-11 | Baumann Hans D | Insert type sliding gate valve |
FR2417702A1 (fr) * | 1978-02-17 | 1979-09-14 | Zikesch Gmbh C H | Dispositif de sectionnement, notamment vanne de sectionnement, pour fluides |
Also Published As
Publication number | Publication date |
---|---|
FR2695184A1 (fr) | 1994-03-04 |
JPH07503523A (ja) | 1995-04-13 |
EP0612389A1 (fr) | 1994-08-31 |
FR2695184B1 (fr) | 1994-12-02 |
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