DE2358969A1 - Remote controlled shut off valve - has retractable stop to ensure intermediate flow setting with stepless adjustment - Google Patents

Abstract

The valve combines the functions of a shut-off unit and of a flow control device where the seat is formed by the ring end-face of a partition wall which is cast as a unit with the valve housing. The valve disc carries a seal ring and the thread-connected support acts as a guide for the valve actuator comprising a closure element for the valve disc and flow-control setter. The support includes a cylinder and piston in line with a seat, the piston made in the cup shape with opening facing housing. The opposite end of the spindle is in contact with an adjustment spindle sealed in the bore of a support, while a spring provides the pre-load of the piston.

Description

DipL-lng. Waiter Jackf «? Ch

Stuttgart N, Menze / straße 43

Karl Handle & Sons A 55 89ο - from

Machine factory and 'Den

Iron foundry * '_{; Mon} v. \ 973

713o Mühlacker Z ^Ot -

Industriestr. 47

Valve

The invention "relates to valves ⁺ with a through-channel provided in a valve housing, which can be locked with a valve closing part which is mounted on the housing between a closing and an open part and can be moved against a valve seat.

During certain work processes, for example with metering processes, the material to be fed is over a main supply line, two branch lines and fed from these back to the consumer, with in a branch line both a shut-off valve and a quantity regulating valve are provided one behind the other are, while in the other branch line only one check valve is arranged. By the proportionate large number of valves results in a expensive and complicated arrangement that can easily cause disruptions.

The invention is based on the object of designing a valve of the type described at the outset in such a way that it is the only valve for all the penalties described can take over and branches between the

* for gaseous, liquid and flowable media - - '2 -. ■■ .., _

509823/007 ©.

Main supply line and the consumer niclrfc required are.

In the case of a valve, this is described at the outset Kind achieved according to the invention in that a disengageable stop device for at least a reducing intermediate position of the valve closing part is provided. Becomes the anchor device is engaged, the valve closing part is moved, for example, in the direction of the closed position held in the intermediate position between the closed and the open position, so that the check valve in this intermediate position acts as a volume reducing valve that reduces the volume to a predetermined value Reduced value; If the stop device is disengaged, the valve closing part can be moved up to the closing position moves further and thus the valve is used as a shut-off valve to shut off the supply line will.

It is particularly useful if a stop member of the stop device in its relative direction of movement is steplessly adjustable with an actuator, preferably with an adjusting spindle. Through this the valve can be continuously adjusted to any desired quantity reduction so that it suits the respective Can be adapted to requirements.

the flow rate

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So that the Yentilsehouldteil in a simple manner independent of / Ansehlageinrichtung in a short time The target division can be transferred, shows that "The movable stop member of the stop device has a driver for the valve closing part, with the driver preferably has a driving surface pointing in its closing direction of movement has for the loose contact on a driving counter surface of the valve closing part. The yentil closing part can therefore be moved in the closing direction independently of the movable stop member, the -T & nschlageinrichtung can be designed so that the valve closing part with the stop device engaged from the closed position only up to the respective Quantity reduction intermediate position can be moved.

A particularly simple and space-saving design results when the stop device is on the same axis to the valve closing part, wherein the adjusting spindle is preferably coaxial with a valve spindle of the Tentilschljs3teiles is provided.

The training according to the invention is particularly suitable for those valves in which the valve closing part with an actuating member, preferably is connected to the piston of an actuating cylinder, which is for example hydraulic or operated pneumatically. It is for

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Simplification of the operation advantageous if the movable stop member of the stop device also with the piston of an actuating cylinder connected, i.e. also pneumatically or hydraulically operated.

Is the effective piston area of the piston of the stop device smaller than that of the piston of the valve closing part, with the same pressure application, of the front cylinder space of the cylinder of the stop device / the in the direction of closing movement in the closing movement direction rear cylinder space of the cylinder of the valve closing part on each pail ensures that the valve closing part moves into the closed position in a short time will. The two mentioned cylinder spaces are to achieve simple control of the valves line-connected to one another, resulting in a very simple design if these two cylinder spaces merge directly into one another, i.e. are formed by a common space. The two Cylinders can therefore also be formed by a single component.

To further simplify the training of the invention The valve is the movable stop member formed by the piston of the stop device, on which preferably directly in his Axis lying steep member is performed.

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The fixed stop member of the stop device can in a simple manner by a ring, preferably one in an annular groove of the cylinder liner used spring ring be formed, so that a very precise stop position with simple assembly can be achieved.

In order to be able to adjust the actuator in a simple manner, it has a handle, which is preferably is arranged at the outer end of the adjusting spindle which is led out of the cylinder.

A further simplification of the structure results when the piston of the valve closing part is attached to that of this remote end of the valve spindle is arranged.

A particularly advantageous further development of the subject matter of the invention consists in that the piston of the stop device and the piston of the valve closing part 'Are provided on the same axis, preferably axially adjacent to one another, so that they can be easily Way iti operative connection can be brought together. This is further improved, though the actuating member of the stop device on the side facing away from the valve closing part of the latter Actuator is provided so that when the former actuator is advanced that of the The valve closing part is detected and taken up to the stop position in the closing direction.

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The preferably spherical driving counter surface of the valve closing part can in a simple manner be formed by the end of the valve spindle, so "that a separate component is not required.

TJm especially "when actuating the pressure medium of the he- · valve according to the invention to require as few control lines and control elements as possible, is the Valve closing part for the open position, preferably spring-loaded with a spring arranged around the valve spindle in a space-saving and protected manner.

If the spring is supported on the piston of the valve closing part and it is preferably partially inside this, designed as a cup-shaped hollow piston Piston, so practically no additional space is required for their accommodation.

To achieve an even safer puncture and a robust design of the valve is the stop device with a, preferably by a 2 guide sleeves formed for the valve spindle Carrier to your valve housing -befestigt, a detachable attachment is possible, so that theschlagbzw. Actuating device can be easily replaced.

For example, the carrier can be inserted into a thread or the like of the valve housing, wherein it is preferably at right angles to the passage channel,

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so that its connection to 'the associated line sections in no way "is handicapped.

The Y-valve can be formed by a simple sleeve valve.

The invention is explained in more detail below with further details; the drawings enter Embodiment with the essential parts for the invention approximately to scale again. These* If they cannot be taken directly from the drawings, parts are made using the drawings explained.

They are shown in

Pig. 1 shows a valve according to the invention in axial section and in the open position;

Pig. 2 the valve according to FIG. 1 in a reduced and partially simplified representation namely in an intermediate position that reduces the quantity :;

Pig. 3 the valve in a representation corresponding to Pig. 2, but in the closed position.

Like Pig. 1 shows, a valve according to the invention has a valve housing 1 with two coaxial,

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with connection flanges provided with internal threads 2, 3, between which the valve housing 1 forms a through channel, in the center thereof to its axis or to the axis 5 of the connecting flanges 2, 3 right-angled valve seat 6 for a Valve closing part 7 is provided. The valve seat 6 is through the one, annular end face of a provided with a cylindrical through opening 9 Partition wall 8 is formed in through-channel 4, partition wall 8 being integral with valve housing 1 is formed and the valve seat 6 approximately in an axial plane of the connecting flanges 2, 3 or the passage channel lies. The valve closing part 7 is in the form of a one provided with an annular seal 1o Valve plate opposite the valve seat 6, in such a way that it is in the closed position with the ring seal 1o rests sealingly on the valve seat 6 and in every other position from the valve seat 6 in the direction is lifted off the axis.

In the middle between the connecting flanges 2, 3, the jacket of the valve housing 1 has one in the Axis 11 of the valve seat 6 or the valve closing part 7 lying cylindrical fastening flange 12, the inner diameter of which is greater than that of the valve closing part 7 and which has an internal thread for fastening a guide sleeve designed as an IHuhrungshülse Carrier 13 of an actuator 14 is provided for the valve. The carrier 13 instructs its end facing the valve housing 1 an im

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Diameter enlarged end part 15, with -which it is releasably screwed into the mounting flange 12 and which has an annular collar on the end face of the fastening flange 12 rests under tension.

The actuating device 14 has a closing device 16 for the valve closing part 7 so / ie one Stop device17 for a desired intermediate quantity reducer position of the valve closing part 7. Forms adjacent to the end part 15 at a small distance the! carrier 13 one in the axis 11 of the valve seat 6 lying cylinder 18 * in which a piston 19 Is mounted displaceably over a distance which is greater than the movement distance of the valve closing part is between its open and its closed position. The piston 19 is designed as a cup-shaped hollow piston, which is open in the direction of the valve housing 1 and on its end wall facing away from the valve housing 1 a valve spindle 2o positively in the axial direction is attached, the valve closing part with its other end 7 wears. The valve spindle 2o is between the valve closing part 7 and the cylinder 18 guided displaceably in a corresponding bore of the carrier 13 and within this bore

sealed. When the valve closing part 7 is in the open position, it engages the one facing away from the ring seal 1o, neck of reduced diameter into a recess of the end part 15, while the piston 19 anjäer with the outer end face 21 of its end wall

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from the valve closing part 7 further away from the end wall 22 of the cylinder 18, so that the valve closing part 7 through in the open position Stop and that is determined by the limit stop of the piston ^. To this position is the Piston 19 by a designed as a helical compression spring Spring 23 spring-loaded, which surrounds the valve spindle 2o and on the one hand on the inside the end wall of the piston 19 and on the other hand at the end lying closer to the Y-valve closing part 7 wall of the cylinder 18 is supported. Kur of the valve closing part 7 facing away from the cylinder space 24 of the cylinder 18 is provided with a pressure medium connection formed, for example, by a radial threaded bore 25 provided in such a way that by applying this cylinder space 24 with a pressure medium of the Piston 19 in the direction of the valve housing 1 and thus the valve closing part 7 in the closed position against the Valve seat 6 is moved. The cylinder 18 is connected to one another by two axially adjacent longitudinal flanges connected housing parts are formed, of which the shorter and closer to the valve closing part 7 is located Housing part is formed in one piece with end part 15. In the closed position of the valve closing part 7 If the piston 19 or its piston seal 26 is still within the other, a greater axial length having housing part, so that the shorter housing part does not have a cylinder barrel for the piston 19 forms.

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At the end facing away from the valve closing part 7 goes the cylinder 18 of the locking device 16 into a cylinder 27 of the stop device 17, which also lies in the axis 11 of the valve seat 6 and its inner diameter is smaller than that of the cylinder

18 is. The cylinder chamber 28 of the cylinder 27 facing the valve closing part 7 is constant Diameter into the cylinder space 24 of the cylinder 18, whose between the two cylinder spaces 24, 28 lying end face 22 is thus annular shoulder-shaped. In the cylinder 27 including its from the valve closing part 7 facing away end wall 29 in one piece with the housing part of the Zy- located closer to it. Linders 18 is formed, a piston 3o is mounted axially displaceable over a distance that is slightly is greater than the maximum displacement distance of the piston 19. The end facing the piston 19 or the corresponding end face of the piston 3o forms the movable stop member 31 of the stop device 17, the fixed stop member 32 by a Spring ring is formed, which is adjacent to the cylinder space 24 is inserted into an inner ring groove of the cylinder 27 or of the cylinder space 28. The one from the piston

19 facing away from the cylinder chamber 33 of the cylinder 27 is also connected by a radial threaded hole formed pressure medium connection 34 connected so that by acting on the cylinder chamber 33 of Piston 3o can be moved in the direction of valve seat 6 up to the stop on stop member 32. When the cylinder space 28 is acted upon by the

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Pressure medium connection 25, the piston 3o is moved to its other end position, in which it is through Striking on the end wall 29 of the cylinder 27 is set.

In the piston 3o an adjusting spindle with a threaded section is adjustably mounted as an actuator 35, this thread section in an internal thread of the piston 3o lying in the axis 11 is led. Adjacent to the threaded section forming one end of the actuator, the Actuator on a cylindrical shaft 36, which through bores in the piston 3o and in the end wall 29 guided out of the cylinder 27 and within these bores with resting on its outer circumference Ring seals is sealed. At the outer end, the shaft 36 has a button-shaped handle 37. the the end face of the actuator 35 closest to the valve closing part 7 or from its threaded section forms a driving surface 38 for a driving surface 39 of the valve closing part 7, wherein this driving counter surface 39 can be formed by the spherical end of the valve spindle 2o, which the end wall of the piston 19 is penetrated and secured or braced with respect to this with a nut.

To move the valve closing part 7 into a ⁺ reducing intermediate position according to Pig. 2, only the cylinder chamber 33 is acted upon by pressure medium via the pressure medium connection 34, so that

⁺ the flow rate

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the piston 3o is advanced. The take-away area runs 38 on the counter driving surface 39 and takes the piston 19 including the valve closing part 7 with until the piston 3o strikes the stop member 32; depending on which one The position of the actuator 35 is by turning the handle 37 relative to the piston 3o the distance between the valve closing part 7 and the valve seat 6 in this intermediate position.

To move the valve closing part 7 into the closed position according to FIG. 3, the cylinder space 24 is acted upon with pressure medium via the pressure medium connection 25, this in every position of the piston 3o, also with its described stop position can be done thereby the piston 19 in Moved towards the Y-valve seat 6 until the valve closing part 7 rests against the valve seat 6 in a blocking manner. At the same time, the piston 3o becomes sainer via the cylinder space 28 acted upon by the pressure medium the end position distant from the stop member 32 is loaded, so that it moves to this end position. Will the Cylinder chamber 24 is vented, the piston 19 is either in its open position by the pretensioned spring 23 1 or up to the stop on the driving surface 38 according to FIG. 2. The arrangement can be made so that the piston 3o is further removed from the valve seat 6 by the spring 23 lying end position is moved when the valve closing part 7 moves into its open position will.

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Claims (1)

-H- A 33 89ο - from Den Nov. 26, 1973 EXPECTATIONS Valve with a through-channel provided in a valve housing which can be locked with a valve closing part which is mounted on the housing between a closed position and an open position and can be moved against a valve seat, characterized in that a disengageable stop device (17) for at least one ⁺ reducing intermediate position of the valve closing part (7) is provided. 2. Valve according to claim 1, characterized in that the Änschlageinrichtung (17) with respect to a Abutment member (31) in their relative direction of movement infinitely adjustable with an actuator (35), preferably with a Stelüapindel is. ⁺ the flow rate - 15 - 509823/0076 - -15 - 3. Valve according to claim 1 or 2, characterized in that the movable stop member (31) the stop device (17) has a driver for the Y-valve closing part (7) and that the driver preferably has a take-up surface pointing in its closing direction of movement (38) for loose contact with a driving counter surface (39) of the valve closing part (7) having. 4. Valve according to one of the preceding claims, characterized in that the stop device (17) is on the same axis as the valve closing part (7), the actuator (35) preferably is provided coaxially to a valve spindle (2o) of the valve closing part. 5. Valve according to one of the preceding claims, characterized in that the valve closing part (7) and / or the movable stop member (31) of the stop device (17) with an actuating member (19 or. 3o), preferably connected to the piston of an actuating cylinder is. 6. Valve according to claim 5, characterized in that the effective piston area of the piston (3o) the stop device (17) is smaller than that of the piston (19) of the valve closing part (7) « - 16 509823/0076 -'16 - 7. "Valve according to. Claim 5 or 6, characterized in that that the front cylinder space (28) of the cylinder (27) in the direction of closing movement the stop device (17) with the one in the direction of closing movement rear cylinder space (24) of the cylinder (18) of the valve closing part (7) Line connected iat, preferably this the two cylinder spaces (28, 24) merge directly into one another or through a common one Space are formed. 8. Valve according to one of claims 5 to 7, characterized in that the "two cylinders (18, 27) are formed by a common, preferably housing-like structural unit. 9. Valve according to one of the preceding claims, characterized in that the "movable stop member (31) is formed by the actuating member (3o) of the stop device (17) to which the actuator (35) located in its axis is preferably guided directly. 1o. V _e ntil according to any one of the preceding claims, characterized in that the fixed stop member (32) of the stop device (17), preferably by a ring spring ring inserted is formed in a an annular groove of the cylinder bore. - 17 - 509823/0076 11. Valve according to one of claims 2 to 1o, characterized characterized in that the actuator (35) has a handle (37), which is preferably is arranged on the outer end of the adjusting spindle which is led out of the cylinder (27). 12. Valve according to one of claims 5 "to 11, characterized characterized in that the actuating member (19) of the valve closing part (7) on that of this remote end of the valve spindle (2o) is arranged. 13. Valve according to one of claims 5 "to 12, characterized characterized in that the actuating member (3o) of the stop device (17) and the actuating member (19) of the valve closing part (7) coaxially, preferably axially adjacent to one another are provided. 14. Valve according to one of claims 5 to 13 »thereby characterized in that the actuator (3o) of the stop device (17) on the from Valve closing part (7) facing away from the actuator (19) is provided. 15. Valve according to one of claims 3 to 14, characterized characterized in that the end of the valve spindle (2o) is the, preferably spherical, driving counter surface (39) forms and / or that the - 18 509823/0076 The end of the actuator (35) forms the driving surface (38). 16. Valve according to one of the preceding claims, characterized in that the valve closing part (7) to open position, preferably with. one around the valve spindle (2o) Peder (23) is spring-loaded. 17. Valve according to claim 16, characterized in that that the spring (23) is supported on the actuating member (19) of the valve closing part (7) and preferably partially within this actuating member designed as a cup-shaped hollow piston (19) lies. 18. Valve according to one of the preceding claims, characterized in that the stop device (17) with a guide sleeve, preferably formed by an IT guide sleeve for the valve spindle (2o) Support (13) is attached to the valve housing (1). 19. Valve according to claim 18, characterized in that that the carrier (13) or the like in a thread. of the valve housing (1) is used and preferably is at right angles to the through channel (4). - 19 - 509823/0078 2o. Valve after. Claim 18 or 19, characterized in that that the! carrier (15) is a structural unit with the cylinder (18) for the piston (19) of the " Valve closing parts B (7) forms. 509823/00 7 6 to Blank page