WO2020160894A1 - Soupape à clapet d'arrêt, procédé, corps d'armature et garniture d'étanchéité - Google Patents

Soupape à clapet d'arrêt, procédé, corps d'armature et garniture d'étanchéité Download PDF

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Publication number
WO2020160894A1
WO2020160894A1 PCT/EP2020/051300 EP2020051300W WO2020160894A1 WO 2020160894 A1 WO2020160894 A1 WO 2020160894A1 EP 2020051300 W EP2020051300 W EP 2020051300W WO 2020160894 A1 WO2020160894 A1 WO 2020160894A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
butterfly valve
sensor arrangement
signal
flap
Prior art date
Application number
PCT/EP2020/051300
Other languages
German (de)
English (en)
Inventor
Michael Klemt
Werner Floegel
Sebastian HUSSACK
Original Assignee
Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft
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
Application filed by Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft filed Critical Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft
Priority to EP20701716.1A priority Critical patent/EP3824206A1/fr
Publication of WO2020160894A1 publication Critical patent/WO2020160894A1/fr

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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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/005—Electrical or magnetic means for measuring fluid parameters
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • 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
    • F16K1/16—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 pivoted closure-members
    • F16K1/18—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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • F16K1/2265—Shaping or arrangements of the sealing the sealing being arranged on the valve seat with a channel- or U-shaped seal covering a central body portion
    • 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
    • F16K1/16—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 pivoted closure-members
    • F16K1/18—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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0033—Electrical or magnetic means using a permanent magnet, e.g. in combination with a reed relays
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0058—Optical means, e.g. light transmission, observation ports
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
    • F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • G01M3/047—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means with photo-electrical detection means, e.g. using optical fibres

Definitions

  • the invention relates to a butterfly valve, a method, a fitting body and a sealing sleeve for a butterfly valve.
  • Butterfly valve is detected, for example, by a visible leak to the outside or process problems caused by an internal leak when the butterfly valve is closed.
  • Butterfly valve is often associated with an inadequate sealing effect of a sealing sleeve. It is therefore the object of the invention to improve a butterfly valve in such a way that the tightness of the butterfly valve is guaranteed.
  • the object is achieved by a butterfly valve according to claim 1, a method for operating the
  • Butterfly valve according to an independent claim, a fitting body according to a further independent claim and a sealing collar according to another independent claim.
  • a first aspect of this description relates to a
  • Butterfly valve comprising a fitting body, a flap that is rotatable within the fitting body and restricting a flow of a process fluid, a
  • Sealing collar which is arranged between the fitting body and the flap, and a sensor arrangement, the sensor arrangement being designed to include at least one
  • An external leak means that the process medium, which is carried in the fluid channel, escapes to the outside. In the event of an internal leak, a smaller or larger amount of process fluid flows although the flap is pressing on the sealing sleeve. The process medium can still between the flap and the sealing collar
  • characterizing indicator as a function of the signal provided by the sensor arrangement and in Can be determined as a function of a previously determined characteristic map and / or a previously determined characteristic curve and / or a previously determined setpoint value.
  • Characteristic curve and / or the target value can be foreseen.
  • the map applied in advance is taken into account
  • the age, a number of switching cycles, etc. in the form of further input variables is determined in advance on the basis of test objects in the laboratory.
  • the characteristic field is acted upon by the signal from the sensor arrangement in order to detect a deviation from normal operation, for example premature aging and material fatigue.
  • rotatable flap can be clearly inferred whether the flap should rest against the sealing collar in the respective rotational position or not. Consequently, for example, pressure recordings are determined over time when closing the flap and / or when opening the flap.
  • the Recorded pressure recording is compared, for example, with a nominal profile of pressures, for example in a characteristic diagram by subtraction, and via a
  • Deviation criterion such as, for example, a threshold value for a tightness, in particular assigned to a tightness value in the form of the indicator.
  • the tightness of the butterfly valve is advantageously monitored from the outside in this way.
  • the sealing sleeve is
  • Sensor arrangement comprises at least the recess.
  • a chamber formed by the recess and a shaft sealed in the shaft sealing section is advantageously used for the detection of a reduced tightness to the outside. Process fluid entering the chamber can thus be detected even before the process fluid
  • Contact of the fluid sensor with process fluid converts into the signal, comprises, and wherein the fluid sensor is connected to the recess in a fluid-conducting manner.
  • the sensor arrangement comprises an expansion element, the expansion element upon contact with the
  • Process fluid expands, and a material of the
  • the pressure sensor can advantageously be arranged laterally on the seal, which is particularly advantageous for the arrangement of signal lines.
  • the swelling of the expansion element advantageously increases its volume, which in turn advantageously increases the sealing tension between the shaft and the sealing collar. In this way, on the one hand, the lack of tightness is recognized and, on the other hand, the risk of leakage is reduced.
  • An advantageous example is characterized in that a circumferential flap sealing section delimits a seat for the rotatable flap, and the sensor arrangement at least partially within the flap sealing section or between the flap sealing section and the
  • Fitting body is arranged.
  • the tightness inward between the flap and the can thus be advantageous
  • Sealing section are monitored. This advantageously increases process reliability. Other measuring points and measuring devices for monitoring process safety can thus be used.
  • An advantageous example is characterized in that the sensor arrangement has a plurality of successive and / or overlapping ones in the circumferential direction
  • a break in part of the thread-like elements can be determined. This break is caused, for example, by increased pressure on the thread-like elements
  • Flap sealing section caused. Consequently, a sufficient or insufficient sealing effect is indicated by means of the thread-like elements.
  • An advantageous example is characterized in that the sensor arrangement has an electrically conductive, galvanically non-connected layer and is spaced apart from it
  • the galvanically not connected layer advantageously provides an inductive load.
  • the inductive element induces eddy currents in the electrically unconnected layer, which in turn is reflected in the measurable inductance of the inductive element.
  • An advantageous example is characterized in that the material of the sealing collar encloses at least part of the sensor arrangement.
  • the elements of the sensor arrangement are advantageously embedded where a force is exerted on the sealing sleeve during operation.
  • the sensor arrangement is in front of the material
  • a second aspect of this description relates to a
  • Faucet body rotatable and a flow of a Process fluid-limiting flap, a sealing sleeve which is arranged between the fitting body and the flap, and a sensor arrangement, the sensor arrangement providing at least one signal which characterizes the tightness of the butterfly valve before an internal or external leak occurs.
  • Another aspect of this description relates to a fitting body for a butterfly valve comprising a sensor arrangement which is designed to provide at least one signal which characterizes the tightness of the butterfly valve before an internal or external leak occurs.
  • Another aspect of this description concerns one
  • Sealing sleeve for a butterfly valve comprising a sensor arrangement which is set up to provide at least one signal which characterizes the tightness of the butterfly valve before an internal or external leak occurs.
  • Figures 2-7 each have a shaft sealing section
  • FIGS. 9-13 each have a flap sealing section of
  • FIG. 1 shows a soft-sealing butterfly valve 2 in a schematic section.
  • the shut-off flap valve 2 comprises a fitting body 4, in which a rotatable flap 6 for limiting a flow of a process fluid is arranged.
  • the flap 6 is arranged so as to be rotatable about an axis of rotation 8 and is driven by a drive 10.
  • the drive 10 is for example a
  • the drive 10 is manually driven and includes manual actuation.
  • the fitting body 4 provides an inner connection area for an elastic
  • the elastic sealing collar 12 comprises an elastic material such as a vulcanized elastomer.
  • Flap 6 are made of a metal alloy, for example.
  • the sealing cuff 12 comprises a proximal seat 14 for resting against the rotatable flap 6.
  • the seat 14 is supported by a circumferential flap sealing section of the Sealing collar 12 provided.
  • a respective shaft 16, 18 is rotatably connected to the flap 6 and to the
  • Fitting body 4 rotatably mounted.
  • the shaft 18 is connected to the drive 10.
  • the sealing collar 12 comprises a respective one in a shaft sealing section 20, 22
  • the sealing sleeve 12 comprises a sensor arrangement 30 which is set up to determine at least one signal S.
  • the signal S characterizes a sealing effect of the sealing collar 12.
  • Sealing collar 12 is for example by a
  • the sealing effect of the sealing sleeve 12 is characterized by an expansion of the material of the sealing sleeve 12. The material expansion is measured, for example, in the circumferential direction and / or in the radial direction, starting from the imaginary central axis 28 and / or parallel to the central axis 28.
  • the sealing effect of the sealing sleeve 12 is determined by the presence of Characterized process fluid in certain areas of the sealing collar 12.
  • the sealing effect of the sealing collar 12 is characterized in a further example by a pressure on the material of the sealing collar occurring in the circumferential direction and / or in the radial direction and / or parallel to the central axis 28.
  • the sealing effect of the sealing collar 12 is characterized in particular by the following information: volume reduction due to shrinkage of the material, volume reduction due to swelling of the material, abrasive damage due to
  • the signal S is provided, for example, by means of a measuring element which is part of the sealing cuff 12. In another example, the signal S is indicated by a
  • Control unit 32 or a measuring element arranged remotely from the sealing sleeve 12 is determined.
  • the signal S is transmitted to the control unit 32.
  • the control device 32 comprises a memory M and a processor P, a computer program C being stored on the memory M, which is explained in this description
  • Control unit 32 as a function of the signal S a
  • the indicator I which characterizes the sealing effect of the sealing sleeve.
  • the indicator I can comprise the signal S or the indicator I is derived from the signal S and indicates an adequate or inadequate sealing effect of the sealing collar 12.
  • the indicator I provided can be transmitted, for example, to remotely arranged network units in order to initiate countermeasures against the insufficient sealing effect of the sealing sleeve 12. In this way, an ordering process from the manufacturer of the sealing collar 12 can be triggered and / or measures are prepared to carry out the replacement of the sealing collar 12.
  • the control unit 32 transmits a signal 34 for setting a rotational position 36 of the flap 6.
  • the control unit 32 determines the indicator I provided as a function of the signal S of the sensor arrangement 30 of the sealing sleeve 12 and as a function of the
  • FIG. 2 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic form
  • the through opening for the shaft 18 is delimited by sealing lips 202, 204 and 206, the distal ends of which bear in a circular ring against the shaft 18 and which
  • the sealing lips 202, 204 and 206 are circular and delimit them a respective circular recess 208 and 210. With the shaft 18, the recesses 208 and 210 delimit a respective chamber which, in an operating state without leakage, does not receive any process fluid.
  • the sensor arrangement 30 is at least partially in the material of
  • FIG. 3 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic
  • the sensor arrangement 30 comprises an in
  • Proximal recess 210 arranged expansion element 302, which absorbs this upon contact with process fluid and thus expands. If process fluid enters the proximal chamber of the proximal recess 210, then the expansion element 302 absorbs the process fluid, expands and exerts pressure on the shaft 18 and the material of the sealing sleeve 12.
  • the expansion element 302 is for example in only one sector of the
  • Sealing collar 12 and the fitting body 4 is arranged prestressed, determined and as the signal S
  • the sensor arrangement 30 thus comprises the recess 210, the expansion element 302 and the
  • Pressure sensor 304 The pretensioning of the pressure sensor 304 ensures that not only an expansion of the
  • Expansion element 302 but also a decrease in pressure and thus a loss of the pressure caused by the sealing sleeve 12 provided contact voltage in the area of the shaft sealing portion 22 is detectable.
  • FIG. 4 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic
  • the sensor arrangement 30 comprises the recess 210, a fluid channel 402 and a fluid sensor 404 which provides the signal S.
  • the fluid channel 402 is guided through the material of the sealing collar 12 and connects the recess 210 and the fluid sensor 404 in a fluid-carrying manner.
  • FIG. 5 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic
  • the sensor arrangement 30 comprises the fluid sensor 404 which, in contrast to FIG.
  • Material of the sealing collar 12 is arranged.
  • the fluid sensor 404 and the proximal chamber of the proximal recess 210 are thus connected to one another in a fluid-conducting manner.
  • FIG. 6 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic
  • the sensor arrangement 30 comprises a pressure-sensitive resistance layer 602 and a measuring element 604.
  • a pressure occurring in the material of the sealing sleeve 12 in the radial direction to a center axis of the shaft 18 causes a change in resistance in the resistance layer 602, the electrical resistance using the measuring element 604 as the signal S is detected.
  • the resistance layer 602 runs parallel to the center axis of the shaft 18.
  • FIG. 7 shows, by way of example, the shaft sealing section 22 of the sealing collar 12 from FIG. 1 in a schematic
  • the sensor arrangement 30 comprises two electrically isolated and electrically conductive layers 702 and 704 as well as a measuring element 706.
  • the measuring element 706 determines an electrical capacitance of the two electrically conductive layers 702 and 704 in the form of the signal S.
  • the layers 702, 704 run
  • FIG. 8a shows the shut-off valve 2 in a section A-A from FIG. 1.
  • the fitting body 4 provides a proximal connection contour 802.
  • a distal connection contour of the sealing sleeve 12 corresponds to that
  • the proximal connection contour 802 provides a proximal surface 804 on which the sealing sleeve 12 with the area of the opposite the seat 14
  • Flap sealing portion 806 rests.
  • the Sealing collar 12 ready undercuts into which lateral projections 808 and 810 of the connection contour 802 engage.
  • the sealing cuff 12 uses the sensor arrangement 30 to determine a signal S which, for example, indicates a pressure or an expansion of the material
  • Sealing collar 12 is characterized in the radial direction to the central axis 28.
  • the sensor arrangement 30 extends at least in the circumferential direction
  • the sensor arrangement 30 is divided into a plurality of successive and / or overlapping ones
  • Sensor arrangement 30 in circular cylinder segments allows damage patterns to be recorded, which can be differently pronounced in the circumferential direction. Consequently, for example, between wear that occurs in
  • Disruptive body which only in a segment of a circle within causes a disturbance in a short period of time.
  • FIG. 8b shows another based on FIG. 8a
  • Example of the shut-off valve 2 In contrast to FIG. 8a, the sensor arrangement 30 in FIG. 8b is not arranged in the material of the sealing sleeve 12. Rather, the sensor arrangement 30 is between the flap sealing section 806 of the sealing cuff 12 and the proximal one
  • connection contour 802 of the fitting body 4 is arranged.
  • the sensor arrangement 30 extends at least in sections in the shape of a circular ring between the fitting body 4 and the
  • the sensor arrangement 30 includes a plurality of
  • Sensor sections 830a, 830b overlap or are spaced apart from one another in the circumferential direction.
  • Each of the sensor sections 830a, 830b rests radially outward against the proximal surface 804 and rests radially inward against an outwardly facing surface of the sealing sleeve 12.
  • Sensor sections 830a, 830b represents a respective one
  • the sensor signals Sa, Sb represent, for example, a respective pressure which is applied to the respective sensor section 830a, 830b in the radial direction of the sealing collar 12.
  • the sensor sections 830a, 830b are designed, for example, as one or more pressure measurement foils.
  • the at least one pressure measuring film is firmly connected to the fitting body 4, for example, which has the advantage that the sealing collar 12 can be replaced without the need to replace the
  • Sealing sleeve 12 can be monitored in the installed state.
  • the definition of the sensor sections 830a, 830b in relation to cable routing is advantageous.
  • the pressure measuring film is glued into the fitting body 4.
  • the pressure measuring film is firmly connected to the sealing sleeve 12. So can
  • Pressure measuring film for example, glued into the sealing sleeve 12 or glued onto it.
  • the at least one pressure measuring film is formed into a measuring cuff, not shown, which is arranged between the sealing cuff 12 and the fitting body 4.
  • the sensor arrangement 30 is designed such that it is entirely or partially in a recess of the fitting body 4 and / or in a
  • Recess of the sealing collar 12 is located in order to be arranged between the fitting body 4 and the sealing collar 12 in this way.
  • FIG. 9 shows the sealing sleeve 12 in a schematic form analogous to part of the section AA from FIG. 1.
  • the flap sealing section 806 comprises a pressure-sensitive one Resistance layer 902 as part of the sensor arrangement 30, which runs through the flap sealing section 806, formed at least as a cylinder jacket segment.
  • Resistance layer 902 provides an electrical resistance as a function of the pressure exerted on it in a direction radial to the center axis of the sealing collar 12.
  • the electrical resistance of the resistance layer 902 is provided as the signal S by means of a measuring element 906 of the sensor arrangement 30.
  • FIG. 10 shows the sealing collar 12 in a schematic form analogous to part of the section A-A from FIG.
  • two layers 1004 and 1006 that are electrically isolated from one another are embedded in the material of the sealing sleeve 12.
  • An electrical capacitance of the two layers 1004 and 1006 is provided as the signal S by means of a measuring element 1008.
  • a relative distance between the two layers 1004 and 1006 has a radial effect
  • FIG. 11 shows the sealing collar 12 in a schematic form analogous to part of the section A-A from FIG. 1.
  • Sensor arrangement comprises two electrically conductive layers 1102 and 1104 that are electrically isolated from one another.
  • a change in a distance between the layers 1102 and 1104 parallel to the center axis of the sealing sleeve 12 causes a change in an electrical capacitance of the two layers 1102 and 1104.
  • the direction parallel to the center axis of the sealing collar 12 is shown according to a double arrow 1108.
  • Measuring element 1110 determines the electrical capacitance in the form of the signal S.
  • FIG. 12 shows the sealing collar 12 in a schematic form analogous to part of the section A-A from FIG. 1.
  • the material of the sealing collar 12 there is an electrical one
  • conductive, but not galvanically connected layer 1202 is arranged.
  • An inductive element 1204 runs at a distance from and electrically insulated from the layer 1202.
  • a measuring element 1206 operates the inductive element 1204 in such a way that eddy currents are coupled into the layer 1202. These eddy currents cause inductive feedback in the inductive element 1204.
  • a change in the distance between the layer 1202 and the inductive element 1204 in the radial direction to the center axis of the sealing collar 12 according to a double arrow 1208 causes a change in the measurable electrical inductance of the inductive element 1204.
  • the electrical inductance of the inductive element 1204 is with the measuring element 1206 as the signal S
  • Figure 13 shows the sealing collar 12 in a schematic form analogous to a part of the section AA from Figure 1.
  • thread-like elements 1302, 1304, 1306, 1308 and 1310 are embedded, ends of the thread-like elements 1302-1310 with a Measuring element 1312 are connected.
  • the elements 1302-1310 are optically or electrically conductive.
  • the conductivity of the thread-like elements are determined by means of the measuring element 1312. Is a number of conductive elements
  • the broken ones of the elements 1302-1310 are no longer continuously conductive.
  • the number of broken conductive elements 1302-1310 indicates a reduced sealing effect of the sealing sleeve 12.
  • the measuring element 1312 determines the signal S in such a way as to indicate a reduced sealing effect of the sealing sleeve 12.
  • FIG. 14 shows a sealing collar 12, within which a vibration generator 1404 and a vibration receiver 1402 are arranged.
  • the vibration generator 1404 and the vibration receiver 1402 can each also be arranged on the sealing collar 12 outside the material of the latter.
  • the vibration generator 1404 is excited to vibrate by means of a signal S2, which vibration is coupled into the material of the sealing collar 12.
  • the coupled-in vibration propagates in the material of the sealing collar and reaches the vibration receiver 1402.
  • Vibration receiver 1402 forwards the detected vibration to control unit 32 by means of a signal S1.
  • the vibration generator 1404 and the vibration receiver 1402 are thus spaced apart from one another in the radial direction.
  • the passage for the shaft 18 is located between the vibration generator 1404 and the vibration receiver 1402.
  • a first reference value for an oscillation response in the sense of the signal S1 is recorded in the case of a tight shaft sealing section 20, 22 and a second reference value for a leaky one
  • Shaft sealing section 20, 22 added.
  • an amplitude of a specific frequency in a frequency representation of the signal S1 serves as an oscillation response.
  • a threshold value for a leaky shaft sealing section 20, 22 lies between the first and the second
  • a third reference value for the vibration response in the sense of the signal S1 is recorded in the case of a tight flap sealing section 806 and a fourth reference value for a leaky one
  • Flap sealing portion 806 added.
  • a further amplitude of a specific further frequency serves as a frequency representation of the signal S1
  • a threshold value for a leaky flap sealing section 806 lies between the first and the second reference value, for example in the middle.
  • the flap sealing section 806 is assessed as leaky.
  • the actual value of the The vibration response of the signal S1 thus characterizes the sealing effect of the sealing sleeve 12 inward.
  • the example according to FIG. 14 can advantageously be used both in the case of an elastic sealing sleeve 12 and in the case of a non-elastic and thus rigid
  • FIG. 15 shows the example from FIG. 8b in a schematic section. It is shown that a plurality of at least four sensor sections 830a to 830d extend in the circumferential direction between the fitting body 4 and the
  • Sealing collar 12 extend.
  • the number of sensor sections can be increased in order to enable better resolution and localization of errors.
  • the sensor sections 830a to 830d are spaced apart from one another and in particular save the
  • the pressure-sensitive sensor sections 830a to 830d are pretensioned and, for example, already deliver onto the sealing sleeve 12 without the flap 4 being pressed
  • the sensor sections 830a to 830d can also partially overlap and be guided further in the direction of the shafts 16, 18 or the corresponding ones
  • Sensor sections 830a to 830d at least one
  • Vibration generator 1500 in the form of a vibration film is introduced or arranged between the fitting body 4 and the sealing collar 12.
  • the vibration generator 1500 is excited to vibrate by means of a signal S1500.
  • the valve body 4 and the sealing collar 12 are excited to vibrate, which is reflected in the signals Sla to Sld.
  • the vibration response determined in this way can also be evaluated by means of a map or characteristic curve determined in advance.
  • FIG. 16 shows, in a schematic section, a further example of the butterfly valve 2.
  • a test channel 1600 is arranged between the fitting body 4 and the sealing collar 12, which one
  • connection channels 1602 and 1604 which extend through the fitting body 4 from the inside to the outside
  • a projection 1606 protrudes from the amateur body 4 so far inwards that the sealing collar 12 rests against the projection 1606. This projection 1606 separates the circumferential test channel 1600 and a test fluid enters the test channel 1600 via the connection channel 1604 in order to, after flowing through the test channel 1600, along the
  • Connection channel 1602 to arrive.
  • test unit 1610 is connected to the connection channels 1602 and 1604.
  • the test unit 1610 comprises a pump 1612, which is controlled by means of a signal S1612 that is generated by the control unit 32.
  • test fluid is pumped through the test channel 1600 as a function of the supplied signal S1612.
  • the test fluid thus flows along the back of the cuff over a defined cross-section around the circumference
  • Differential pressure of the test fluid between the connection channels 1602 and 1604 represents. If the test fluid is pumped into the test channel 1600 at a first pressure and it emerges from the test channel 1600 at a second pressure, then the difference results from the first and second pressures.
  • the Sensor unit 30 is formed by test unit 1610 and test channel 1600.
  • test unit 1610 includes, for example, one not shown
  • test fluids such as oils or the like can also be used.
  • a further leakage sensor (not shown) is present in one example, to provide a
  • test channel 1600 spans only one sector on the circumference, as is the case
  • connection channels 1602 and 1604 assigned to one another are at least further spaced apart from one another when facing inwards than shown in FIG.
  • the volume flow of the test fluid through the test channel 1600 changes accordingly. So can be over time detect a change in the volume flow.
  • the signal S also represents the tightness of the
  • an electrical current supplied to the pump 1612 can also generate the signal S
  • Test channel 1600 widens or reduces too much when the flap 6 is closed, which can be determined in each case via the test unit 1610 and the control unit 32.
  • the test channel 1600 leads at least partially through the sealing collar 12.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lift Valve (AREA)

Abstract

Garniture d'étanchéité (12) pour disposer entre un corps d'armature (4) d'une soupape à clapet d'arrêt (2) et un clapet (6) pouvant être tourné vers le corps d'armature (4) et limitant un flux d'un fluide de processus, la garniture d'étanchéité (12) comprenant un agencement de capteur (30), et l'agencement de capteur (30) étant configuré pour fournir au moins un signal (S), lequel caractérise une étanchéité de la soupape à clapet d'arrêt (2) en rapport à l'apparition d'une fuite interne ou externe.
PCT/EP2020/051300 2019-02-08 2020-01-20 Soupape à clapet d'arrêt, procédé, corps d'armature et garniture d'étanchéité WO2020160894A1 (fr)

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EP20701716.1A EP3824206A1 (fr) 2019-02-08 2020-01-20 Soupape à clapet d'arrêt, procédé, corps d'armature et garniture d'étanchéité

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DE102019103176.1 2019-02-08
DE102019103176.1A DE102019103176A1 (de) 2019-02-08 2019-02-08 Absperrklappenventil, Verfahren, Armaturkörper und Dichtmanschette

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021099044A1 (fr) * 2019-11-20 2021-05-27 Carl Freudenberg Kg Ensemble joint d'étanchéité et élément joint d'étanchéité
WO2024023354A1 (fr) * 2022-07-29 2024-02-01 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Dispositif pour une soupape dans une technologie de fluide de traitement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020120446A1 (de) 2020-08-03 2022-02-03 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Absperrklappe

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JPH03130637A (ja) * 1989-10-16 1991-06-04 Tomoe Gijutsu Kenkyusho:Kk バタフライ弁の漏洩検知方法及び装置
WO1994018537A1 (fr) * 1993-02-05 1994-08-18 Raychem Corporation Detecteur d'eau a fibre optique
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EP1818582A1 (fr) * 2006-02-14 2007-08-15 Carl Freudenberg KG Dispositif d'étanchéité
DE102006060382A1 (de) * 2006-12-20 2008-06-26 Friedrich-Alexander-Universität Erlangen-Nürnberg Vorrichtung zur Störungsfrüherkennung an Maschinen und/oder deren Bauteilen
EP2072989A1 (fr) * 2007-12-20 2009-06-24 Carl Freudenberg KG Conduite pour liquides dotée d'une soupape à clapet
DE102016106181A1 (de) * 2016-04-05 2017-10-05 Vag-Armaturen Gmbh Absperrarmatur
CN107504182A (zh) * 2017-09-27 2017-12-22 南京创力传动机械有限公司 一种耐磨式轴密封装置及高速齿轮
EP3372863A1 (fr) * 2015-11-04 2018-09-12 KYB Corporation Dispositif de détection de fuite de liquide

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US4067352A (en) * 1975-12-22 1978-01-10 Joseph Charles Halpine Valve having integrity assurance means
GB2033057A (en) * 1979-10-05 1980-05-14 Klein Schanzlin & Becker Ag Butterfly valve
JPH03130637A (ja) * 1989-10-16 1991-06-04 Tomoe Gijutsu Kenkyusho:Kk バタフライ弁の漏洩検知方法及び装置
WO1994018537A1 (fr) * 1993-02-05 1994-08-18 Raychem Corporation Detecteur d'eau a fibre optique
DE102006001131A1 (de) * 2005-02-02 2006-08-17 Tuchenhagen Gmbh Mittel zur Überwachung des Verschleißes an einer Dichtung für ein Schließglied eines Ventils
EP1818582A1 (fr) * 2006-02-14 2007-08-15 Carl Freudenberg KG Dispositif d'étanchéité
DE102006060382A1 (de) * 2006-12-20 2008-06-26 Friedrich-Alexander-Universität Erlangen-Nürnberg Vorrichtung zur Störungsfrüherkennung an Maschinen und/oder deren Bauteilen
EP2072989A1 (fr) * 2007-12-20 2009-06-24 Carl Freudenberg KG Conduite pour liquides dotée d'une soupape à clapet
EP3372863A1 (fr) * 2015-11-04 2018-09-12 KYB Corporation Dispositif de détection de fuite de liquide
DE102016106181A1 (de) * 2016-04-05 2017-10-05 Vag-Armaturen Gmbh Absperrarmatur
CN107504182A (zh) * 2017-09-27 2017-12-22 南京创力传动机械有限公司 一种耐磨式轴密封装置及高速齿轮

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021099044A1 (fr) * 2019-11-20 2021-05-27 Carl Freudenberg Kg Ensemble joint d'étanchéité et élément joint d'étanchéité
WO2024023354A1 (fr) * 2022-07-29 2024-02-01 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Dispositif pour une soupape dans une technologie de fluide de traitement

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DE102019103176A1 (de) 2020-08-13

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