FI127748B - An arrangement and a method for inserting and removing a head of a measuring device to and from a process space - Google Patents

An arrangement and a method for inserting and removing a head of a measuring device to and from a process space Download PDF

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Publication number
FI127748B
FI127748B FI20185464A FI20185464A FI127748B FI 127748 B FI127748 B FI 127748B FI 20185464 A FI20185464 A FI 20185464A FI 20185464 A FI20185464 A FI 20185464A FI 127748 B FI127748 B FI 127748B
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Finland
Prior art keywords
valve
measuring device
process space
rails
arrangement
Prior art date
Application number
FI20185464A
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Finnish (fi)
Swedish (sv)
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FI20185464A1 (en
Inventor
Harri Salo
Original Assignee
Janesko Oy
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Application filed by Janesko Oy filed Critical Janesko Oy
Priority to DE102018113583.1A priority Critical patent/DE102018113583B4/en
Priority to US16/003,955 priority patent/US10866078B2/en
Priority to CN201810588168.7A priority patent/CN109029523B/en
Publication of FI20185464A1 publication Critical patent/FI20185464A1/en
Application granted granted Critical
Publication of FI127748B publication Critical patent/FI127748B/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B9/00—Housing or supporting of instruments or other apparatus
    • G12B9/08—Supports; Devices for carrying

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  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Automatic Assembly (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Measuring Volume Flow (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The invention relates to an arrangement for inserting and removing a head of a measuring device to and from a process space. The arrangement (1) comprising a process space (3), a measuring device (4) comprising a measuring head (2) at its one end and a retractor tool (5), wherein a valve member (6) is connected to the process space (3) and the retractor tool (5) is connected to the valve member (6). The retractor tool (5) comprises rails (7), a cradle (8) for receiving the measuring device (4) and arranged to slide along the rails (7), and a driving mechanism (9) for moving the cradle (8). The arrangement (1) comprises a valve lock mechanism preventing opening of the valve member (6) if the measuring device (4) is not at a location barring a fluid (10) flow from the process space (3)), and the head of the measuring device (2) is insertable to the process space (3) and removable from the process space (3) when the measuring device (4) is received in the cradle (8). The invention relates also to a method for inserting and removing a head of a measuring device to and from a process space.

Description

Field of the invention [0001] The present invention relates to an arrangement and a method for inserting and removing a head of a measuring device to and from a process space, and particularly to an arrangement and a method for inserting and removing a head of a measuring device to and from a process space comprising a retractor tool.
Background of the invention [0002] Measuring devices are used in monitoring and managing processes where the process medium may be hot, pressurized, aggressive or otherwise hazardous. If the process is a continuous process with infrequent shutdowns there is a need for servicing and maintenance of the measuring devices while the process line is under full process flow and pressure. The servicing and maintenance may 15 comprise modifying, maintaining, lubricating, cleaning and un-jamming the measuring devices.
[0003] There is a need for failsafe and fool proof solutions for servicing and maintenance activities of measuring devices in order to prevent injuries resulting from failure to use practices and procedures necessary. Further, the tools used 20 in handling a measuring device while the process line is under full process flow and pressure should be designed to protect the user.
Brief description of the invention [0004] An object of the present invention is to provide an arrangement and a method to solve the above problems. The objects of the invention are 25 achieved by an arrangement and a method for inserting and removing a head of a measuring device to and from a process space which are characterized by what is stated in the independent claims. The preferred embodiments of the invention are disclosed in the dependent claims.
[0005] The invention is based on the idea of providing an arrangement 30 for inserting and removing a head of a measuring device to and from a process space. The arrangement comprising a process space, a measuring device comprising a measuring head at its one end and a retractor tool, wherein a valve member is connected to the process space and the retractor tool is connected to the valve
20185464 prh 18 -05- 2018 member. The retractor tool comprises rails, the first ends of the rails are attached to the valve member and the second ends of the rails are connected with a cross beam, a cradle for receiving the measuring device and arranged to slide along the rails, the measuring device is arranged to slide between the rails when received in 5 the cradle, and a driving mechanism for moving the cradle, and the arrangement comprises an valve lock mechanism preventing opening of the valve member when the measuring device is not at a location barring a fluid flow from the process space, and the head of the measuring device is insertable to the process space and removable from the process space when the measuring device is received in the cradle.
[0006] The invention is based on the idea of providing a method for inserting and removing a head of a measuring device to and from a process space. The method comprising a process space, a measuring device comprising a measuring head at its one end and a retractor tool, wherein a valve member is connected to the process space and the retractor tool is connected to the valve member. The retractor tool comprises rails, the first ends of the rails are attached to the valve member and the second ends of the rails are connected with a cross beam, a cradle and a driving mechanism, wherein the cradle receives the measuring device and slides along the rails, in the method the measuring device slides between the rails when received in the cradle, and the driving mechanism moves the cradle. The 20 method comprises a valve lock mechanism preventing opening of the valve member when the measuring device is not at a location barring a fluid flow from the process space, and the head of the measuring device is inserted to the process space and removed from the process space by putting the measuring device in the cradle and operating the driving mechanism and the valve member.
[0007] The arrangement and method provide a failsafe operation and a fool proof construction. The arrangement and the method protect user from spills and splashes during the measuring device insertion and removal.
Brief description of the figures [0008] In the following the invention will be described in greater detail by means of preferred embodiments with reference to the attached drawings, in which
Figure 1 shows an arrangement where a measuring device is uninstalled to a retractor tool;
Figure 2 shows the arrangement in the beginning of the inserting of a head of a measuring device to a process space;
20185464 prh 18 -05- 2018
Figure 3 shows the arrangement in the phase of the inserting of the head of a measuring device to the process space;
Figure 4 shows the arrangement in the phase of the opening isolation valve;
Figure 5 shows the arrangement when the head of a measuring device is inserted to the process space;
Figure 6 shows the arrangement in the phase of the removing of the head of the measuring device from the process space;
Figure 7 shows the arrangement in the phase of the removing of the 10 head of the measuring device from the process space;
Figure 8 shows an arrangement where a measuring device is uninstalled to a retractor tool;
Figure 9 shows the arrangement in the beginning of the inserting of a head of a measuring device to a process space;
Figure 10 shows an upwards view of the arrangement in the beginning of the inserting of a head of a measuring device to a process space;
Figure 11 shows the arrangement in the phase of the beginning of opening of the isolation valve;
Figure 12 shows the arrangement in the phase of the opening isolation 20 valve;
Figure 13 shows the arrangement in the phase where the isolation valve is open;
Figure 14 shows a downwards view of the arrangement in the phase where the isolation valve is open;
Figure 15 shows the arrangement when the head of a measuring device is inserted to the process space.
[0009] Detailed description of the invention [0010] Figure 1 shows an embodiment of an arrangement 1 for inserting and removing a head of a measuring device 2 to and from a process space 3. 30 The arrangement 1 comprises a process space 3, a measuring device 4 comprising a measuring head 2 at its one end and a retractor tool 5. In Figure 1 the measuring device 4 is shown uninstalled to the retractor tool 5 for a sake of clarity. A valve member 6 is connected to the process space 3 and the retractor tool 5 is connected to the valve member 6. The retractor tool 5 comprises rails 7, a cradle 8 for receiv35 ing the measuring device 4 and arranged to slide along the rails 7, and a driving mechanism 9 for moving the cradle 8. The arrangement comprises a valve lock
20185464 prh 18 -05- 2018 mechanism preventing opening of the valve member 6 if the measuring device 4 is not present in the cradle 8, and the head of the measuring device 2 is insertable to the process space 3 and removable from the process space 3 by putting the measuring device 4 in the cradle 8 and operating the driving mechanism 9 and the valve 5 member 6.
[0011] The process space 3 may be a process pipe, for instance. In the Figures illustrated process space 3 is a part of a process pipe. The process space 3 contains the fluid 10 to be measured with the measuring device 4. The fluid 10 may be pressurized, hot and/or aggressive. An example of the process space 3 and the 10 fluid 10 is a line comprising black liquor.
[0012] The valve member 6 closes the opening to the process space 3. The valve member 6 comprising an isolation valve 11, may be attached to the process space 3 in any manner known per se, for example by means of a welded stub pipe and a flange joint. The isolation valve 11 itself may be any type of valve suita15 ble for the process pressure and process fluid, such as a ball valve, a suitable slide valve, etc. The isolation valve 11 isolates process fluid 10 from the surroundings. The valve member 6 comprises a valve handle 12 operating the isolation valve 11, i.e. the valve member 6 is closed or opened by rotating the valve handle 12. The valve member comprises a sealing gasket part 13 for sealing the gap between the 20 measurement device 4 and the valve body.
[0013] The opening and closing of the valve member 6 while the process line is under full process flow and pressure may present a hazard to the user. Therefore the arrangement 1 comprises a valve lock mechanism preventing opening of the valve member 6 if the measuring device 4 is not present in the cradle 8.
[0014] A measuring device 4 may be a sensor, an analyser or an optical analyser, for instance. The measuring device 4 is used for monitoring a process and/or to manage a process, for instance. The head of measuring device 2 is inserted to the process space 3 to be in contact with the fluid 10 to be measured and the body of the measuring device 14 extends outside the process space 3. The body 30 14 comprises typically a housing comprising an electronics, a processing unit, or an output unit or any combination of these.
[0015] An optical analyser or an optical sensor may be a refractometer. Refractometers are commonly used to determine the concentration of a dissolved solids by making an optical measurement of a solution’s Refractive Index. The head 35 of an optical analyser or sensor typically comprise an optical window, e.g. a prism, and a temperature sensor which are inserted to the process space to be in contact
20185464 prh 18 -05- 2018 with the fluid to be measured. The body of an optical analyser or sensor typically comprises one or more of the following: a light source, a camera, an analysis circuit, a processor card.
[0016] The retractor tool 5 is an equipment for inserting and removing the measuring device 4 to and from the process space 3. The head of the measuring device 2 is inserted or removed from the process space 3 and the body of the measuring device 14 extends outside the process space 3 also when the head 2 is in an inserted position. The measuring device 4 is guided and supported by the retractor tool 5.
[0017] The retractor tool 5 is fixed to the valve member 6. If the retractor tool 5 is permanently fixed to the valve member 6 the falling of the retractor tool 5 and the measurement device 4 is fully prevented. The retractor tool 5 allows a synchronized movements between the valve member 6 and the measuring device 4 during the inserting and removing the head of the measuring device 2 to and from the process space 3.
[0018] The retractor tool 5 comprises a rail part. In the rail part the rails 7 form the long sides of the retractor tool 5 and the rails 7 are connected with a cross beam 15. The retractor tool 5 may also comprise more than two rails 7, a third rail may be provided below and between the two rails 7, for instance. In Fig20 ures the retractor tool 5 is fixed to the valve member 6 by attaching the ends 34 of the rails 7 to the flange of the isolation valve 25. The retractor tool 5 comprises a moving member, a cradle 8, arranged to slide along the rails 7. The measuring device 4 is put in the cradle 8. As the measuring device 4 slides between the rails 7 the rails 7 provide axial guidance resulting in a good alignment of the measuring 25 device 4.
[0019] The retractor tool 5 comprises an open structure. The open structure of the retractor tool 5 provides an improved visibility to the measuring device 4. The retractor tool 5 can comprise a light stainless structure.
[0020] The retractor tool 5 comprises a driving mechanism 9 for mov30 ing the cradle 8. An example of the driving mechanism 9 is shown in the Figures. A threaded shaft 16, e.g. a screw bar, is fixed to the cradle 8. A hand-wheel 17 is attached to the rail part. The hand-wheel 17 has a thread nut and the operation of the hand-wheel 17 causes the cradle to move along the rails 7 as the threaded shaft 16 pulls or pushes the end plate of the cradle 18. The hand-wheel 17 can be detacha35 ble, for instance, and removed from the arrangement 1 when it is not needed.
20185464 prh 18 -05- 2018 [0021] The driving mechanism 9 has preferably a self-locking property, which means that the axial loading caused to the cradle 8 by process space 3 pressure will not cause the cradle 8 moving backwards.
[0022] Figure 2 shows the arrangement 1 in the beginning of the insert5 ing of a head of a measuring device 2 to a process space 3.
[0023] The measuring device 4 is put to the cradle 8 the head of the measuring device 2 facing the process space 3. The measuring device 4 preferably comprises projecting parts 19, 19a, 19b and the cradle 8 comprises recesses 20, 20a, 20b providing a form locking, i.e. a form locking connection, which is made by 10 at least partially enveloping of the outer contour of the projecting part 19,19a, 19b with the recess 20, 20a, 20b. The projecting parts 19,19a, 19b can comprise different sizes as well as the corresponding recesses 20, 20a, 20b. Then the measuring device 4 is installable to the cradle 8 only into one position, e.g. the valve lock operator 24 upwards. The end plate 18 of the cradle 8 prevents tilting of the meas15 urement device 4 when the measuring device 4 rests in the cradle 8. The end plate 18 of the cradle 8 provides also support to the measuring device 4 against compressive axial loading F caused by pressure of the process space 3. It is also possible to use other attachment means for keeping the measuring device 4 inside the cradle 8 in addition or instead of the presented form locking connection. Examples of 20 other attachment means are locking nuts.
[0024] The rails 7 comprise openings 21 at the corresponding locations where the recesses 20 of the cradle 8 are located when the cradle 8 is in a position where the loading of the measurement device 4 to the cradle 8 can be done. These locations are shown in Figures 1, 2 and 15.
[0025] The rails 7 shown in Figures are having a form of C-channel where two sides are bend to form a C. The cradle 8 shown in Figures comprises two sides 22 connected with an end plate 18. The sides 22 of the cradle 8 are sliding within the rails 7 where the lower part of the rail 7 prevents the cradle 8 from falling down and the upper part of the rail 7 prevents the cradle 8 from being pulled 30 upwards.
[0026] In the beginning of the inserting of a head of a measuring device 2 to a process space 3 the isolation valve 11 is in a closed position. The valve lock mechanism prevents the opening of the isolation valve 11. The valve lock mechanism comprises a valve lock part 23 and a valve lock operator 24. The valve lock 35 part 23 is arranged to the valve member 6 and it mechanically prevents rotation of the valve handle 12. The valve handle 12 acts as a part of a safety locking system of
20185464 prh 18 -05- 2018 the arrangement 1 as the valve member 6 should not be opened if the measuring device 4 is not at a location where it bars the fluid 10 flow from the process space 3. The valve lock operator 24 is arranged to the measuring device 4. The valve lock part 23 extends above the rails 7.
[0027] The valve lock mechanism is released by moving the cradle 8 containing the measuring device 4 towards the process space 3 and pushing the valve lock part 23 with the valve lock operator 24 causing a rotation of the valve lock part 23 which unlocks a rotation of the valve handle 12.
[0028] In the Figures the valve lock part 23 is a pivoting elongated part 10 connected to an isolation valve flange 25. The valve lock operator 24 comprises a protruding part, a pin. The protruding part is formed to the body of the measuring device 14 extending outside the valve member 6 when the head of the measuring device 2 is in the inserted position in the process space 3. In Figures the protruding part is formed to an outer surface of a flange of the measuring device 26. The valve 15 lock mechanism provides a synchronized operation between the rotation of the valve handle 12 and the axial movement of the measuring device 4.
[0029] Figure 3 shows the arrangement in the phase of the inserting of a head of a measuring device 2 to a process space 3. The driving mechanism 9 has moved the cradle 8 containing the measuring device 4 towards the process space 20 3. The head of the measuring device 2 has arrived in the sealing gasket part 13 of the valve member 6. The sealing gasket part 13 provides sealing between the measuring device 4 and the isolation valve body.
[0030] The isolation valve 11 is still in a closed position. As the measuring device 4 has entered the sealing gasket part 13 of the valve member 6 it is 25 safe to start opening the isolation valve 11 and the valve lock mechanism can be released.
[0031] The valve lock mechanism is released with the protruding part of the valve lock operator 24. When the protruding part of the valve lock operator 24 reaches the valve lock part 23 and moves forward it pushes the valve lock part 30 23. The pushing of the valve lock part 23 causes the valve lock part 23 to rotate which rotation moves the end of the valve lock part 23 away from blocking the rotation of the valve handle 12.
[0032] The arrangement 1 preferably comprises a guide plate 27 comprising a guide groove 28 extending above the rails 7. The protruding part of the 35 valve lock operator 24 can move in the guide groove 28 which provides sideways support.
20185464 prh 18 -05- 2018 [0033] The arrangement 1 preferably comprises a collision prevent part 29 preventing the measuring device 4 from colliding with a closed valve member 6 in the insertion phase. The head of the measuring device 2 comprises sensitive parts and there is a risk of damage if a collision occurs. The collision prevent 5 part 29 is attached to the valve handle 12 and when the isolation valve 11 is closed it slides over the guide groove 28.
[0034] Figure 4 shows the arrangement in the phase of the opening isolation valve. In Figure 4 the valve handle 12 of the isolation valve 11 is rotated. As the isolation valve 11 is opened the pressure from the process space 3 pushes the 10 measuring device 4 against the cradle 8 and the driving mechanism 9.
[0035] The collision prevent part 29 pivoted to the valve handle 12 has moved along the valve handle 12 exposing the guide groove 28. The head of the measuring device 2 moves through the valve member 6 when the isolation valve 11 is open.
[0036] In Figure 5 the measuring head of the measuring device 2 is inserted in the process space 3. The measuring head 2 extends into the process space 3 and the measuring head 2 is in contact with fluid 10 to be measured contained in the process space 3 or flowing therein.
[0037] The flange of the measuring device 26 is attached to the isola20 tion valve flange 25. The joint can comprise a bolt- and -screw joint, for instance.
The joint between the measuring device 4 and the isolation valve 11 receives the pressure from the process space 3.
[0038] Figures 6 and 7 show the removal of the head of the measurement device 2 from the process space 3. Figures 4-1 are also used to describe the 25 removing the head of the measuring device 2 from the process space 3 as even though the operation of the arrangement 1 is the opposite the locations of the arrangement 1 parts are similar in the removal and insertion processes.
[0039] In Figure 6 the isolation valve 11 is fully open. The joint between the measuring device 4 and the isolation valve 11 is unlocked and the pres30 sure from the process space 3 pushes the measuring device 4 against the cradle 8 and the driving mechanism 9. The driving mechanism 9 is moving the cradle 8 away from the process space 3.
[0040] The valve handle 12 preferably comprises a stop bar 30 at its axial side. The stop bar 30 comprises a slot 31 at its end for the valve lock operator 35 24. The valve handle 12 can be rotated when the protruding valve lock operator 24
20185464 prh 18 -05- 2018 can pass through the slot 31. At the location where the protruding valve lock operator 24 can pass through the opening the head of the measuring device 2 is in the sealing gasket part 13 of the valve member 6. This location of the protruding valve lock operator 24 is shown in Figure 7. Otherwise the stop bar 30 blocks the move5 ment of the valve handle 12 when it hits the protruding valve lock operator 24.
[0041] The aim of the stop bar 30 is to prevent the closing of the closure element 33 of the valve member 6 by turning the valve handle 12 when the measuring device 4 is at the operation area of the closure element 33. The stop bar 30 protects both the valve closure element 33 and the measuring device 4 as both of 10 them could be damaged if the closure element 33 is trying to close while the measuring device 4 is in the closure element 33 opening.
[0042] The stop bar 30 extends in axial direction when the valve member 6 is open and it provides also guiding to the measuring device 4 comprising the valve lock operator 24 by supporting the valve lock operator 24 sideways.
[0043] In Figure 7 the isolation valve 11 is still fully open. The valve handle 12 preferably comprises a stopper 32 at its end. The stopper 32 halts the movement of the measuring device 4 and the cradle 8 at a location when the head of the measuring device 2 is outside the isolation valve 11. At the location of the halting, the head of the measuring device 2 is in the sealing gasket part 13 of the valve member 6 where it bars the fluid 10 flow from the process space 3. The stopper 32 prevents the removal of the head of the measuring device 2 from the valve member 6 when the closure element 33 of the valve member 6 is open thereby protecting the user from a fluid spill from the process space 3.
[0044] In Figure 7 the valve handle 12 is parallel to the guide groove 28 and above the guide groove 28. The end of the valve handle 12 comprises a wall part, the stopper 32, extending downwards towards the measuring device 4. As the protruding part of the valve lock operator 24 moves in the guide groove 28 it is halted by the wall part.
[0045] The valve handle 12 is then rotated to close the isolation valve
11. This phase is shown in Figure 4 where the rotation of the valve handle 12 is now made to opposite direction than in the case of insertion. By the rotation of the valve handle 12 the stopper 32 is moved out of a way to permit the valve lock operator 24 continue moving away from the process space 3 in the guide groove 28.
[0046] When the isolation valve 11 is closed the pressure from the process space 3 pushes against the closure element 33 of the valve member 6. The closure element 33 of the valve member 6 is shown in Figure 7 by cutting a part of
20185464 prh 18 -05- 2018 the body of the valve member 6 surrounding the closure element 33 away. The shown isolation valve 11 is a ball valve where the closure element 33 comprises a ball.
[0047] When the valve handle 12 is rotated to close the valve member
6 the collision prevent part 29 pivoted to the valve handle 12 is sliding over the guide groove as shown in Figure 3. Also the protruding part of the valve lock operator 24 is reaching the valve lock part 23 and it pushes the valve lock part 23 causing a rotation of the valve lock part 23 which locks the rotation of the valve handle 12 as shown in Figure 2. The valve lock part 23 can be spring-loaded to ensure its 10 operation.
[0048] In Figure 2 the driving mechanism 9 has moved the cradle 8 containing the measuring device 4 to a location where the form locking connection is open and the measuring device 4 can be pulled out from the cradle 8.
[0049] The valve lock operator 24 acts in several safety creating func15 tions in the arrangement 1. The valve lock operator 24 operates the valve lock mechanism, and co-operates with the stop bar 30 and the stopper 32. In Figures the valve lock operator 24 is shown as a one part. However, the valve lock operator 24 can comprise two parts, for instance, arranged axially one after each other. The axial length of the valve lock operator 24 depends on the axial length of the sealing 20 gasket part 13 as it is relevant that the head of the measuring device 2 is within the sealing gasket part 13 when opening and closing the valve member 6.
[0050] Figures 8-15 show another embodiment of the arrangement. In Figures 8-15, the same reference numerals as in Figures 1-7 are used at corresponding points.
[0051] Figure 8 shows the arrangement where a measuring device 4 is uninstalled to a retractor tool 5. Figure 8 shows an arrangement 1 for inserting and removing a head of a measuring device 2 to and from a process space 3. The arrangement 1 comprises a process space 3, a measuring device 4 comprising a measuring head 2 at its one end and a retractor tool 5. A valve member 6 is connected to 30 the process space 3 and the retractor tool 5 is connected to the valve member 6.
The retractor tool 5 comprises rails 7 and a cradle 8 for receiving the measuring device 4 and arranged to slide along the rails 7. The cradle 8 is ready to receive or deliver the measuring device 4 when the cradle 8 is at its outermost position and the openings 21 of the rails and the recesses 20a,b of the cradle 8 overlap.
[0052] The flange of the measuring device 26 is attached to the isolation valve flange 25. In the Figures 8-15 the bolts are fixed to the isolation flange
20185464 prh 18 -05- 2018 and the flange of the measuring device 26 comprises bolt holes. The valve lock operator 24 arranged to the measuring device 4 corresponds the valve lock operator described in previous embodiment.
[0053] Figure 12 shows the structure of the rail part of the retractor 5 tool 5. The first ends 34a of the rails 7 are attached to the valve member 6. The rails are attached to an isolation valve flange 25 of the valve member 6. The second ends of the rails 34b are connected with a cross beam 15. The rail part forms a protective frame, which encircles the cradle 8 and the measuring device 4 in the length direction L and in the width direction w of the measuring device 4 when the measuring device 4 is received in the cradle 8. The cradle 8 is arranged inside the rails 7 and surrounded by the rails 7 allowing the cradle 8 to be removed only by disassembling the rectaractor tool 5. In a fault situation the pressure of the process space 3 can not eject the cradle 8 and the measuring device 4 out of the rail part as the rails 7 arranged on both sides of the measuring device 4 provide sideward sup15 port and the cross beam 15 provides support against compressive axial loading F.
[0054] The first ends 34a of the rails 7 are attached to an isolation valve flange 25 with a form locking connection and with a bolt joint, for instance. In Figure 12 shown form locking connection is made by providing the isolation valve flange 25 with protrusions arranged at the circumference of the flange 25 and 20 providing the lower parts of the first ends 34a of the rails 7 with openings. The rails 7 are then installed from above. The top of the bolt joint can be additionally covered which impedes the opening of the bolt joint. The use of two separate attachmentmeans increases user safety. The rail part structure, rails 7 and the cradle correspond the rail part structure, rails 7 and the cradle 8 described in previous 25 embodiment.
[0055] The retractor tool 5 comprises a driving mechanism 9 for moving the cradle 8. The driving mechanism corresponds the driving mechanism described in previous embodiment.
[0056] The valve member 6 comprises an isolation valve 11, a valve 30 handle 12 for operating the isolation valve 11 and a sealing gasket part 13. In the embodiment shown in Figures 8-15 some of the safety features co-operating with the valve handle 12 are arranged in another way. In Figures 8-15, a curved guide bar 35 is connected to the valve handle 12. The guide bar 35 comprises a guide groove 28a on its lower surface where the protruding valve lock operator 24 is able 35 to move. The first end of the curved guide bar 36a is connected to the stop bar 30 of the valve handle 12 towards the slot 31 in the stop bar 30 to allow the valve lock
20185464 prh 18 -05- 2018 operator 24 moving in the guide groove 28a pass through the slot 31. The second end of the curved guide bar 36b is connected to a stiffening beam 37 which extends between the curved guide bar 34 and the valve handle 12.
[0057] Figure 9 shows the arrangement in the beginning of the insert5 ing of a head of a measuring device to a process space and Figure 10 shows an upwards view of the arrangement. The isolation valve 11 is in a closed position. The valve lock mechanism prevents the opening of the isolation valve 11 as the measuring device 4 is not at a location barring a fluid 10 flow from the process space 3. The valve lock mechanism comprises a curved guide bar 35, an elongated valve 10 lock part 23a and a valve lock operator 24. The valve lock part 23a is arranged to the cradle 8 to move with the cradle 8 and it mechanically prevents rotation of the valve handle 12 when the cradle 8 is at its outermost position by extending through a notch 38 formed to the curved guide bar 35. The measuring device 4 is received in the cradle 8. The measuring device 4 is positioned between the inner surfaces of 15 the two rails 7 such that it is able to slide between the rails 7.
[0058] Figure 11 shows the arrangement in the phase of the beginning of opening of the isolation valve. The driving mechanism 9 has moved the cradle 8 containing the measuring device 4 along the rails 7 towards the process space 3. The isolation valve 11 is still in a closed position. The head of the measuring device 20 2 has arrived in the sealing gasket part 13 of the valve member 6, i.e. the measuring device 4 is at a location barring a fluid 10 flow from the process space 3. As the fluid 10 flow from the process space 3 is blocked with the measuring device 4 it is safe to start opening the isolation valve 11.
[0059] The valve lock mechanism is released by moving the cradle 8 containing the measuring device 4 towards the process space 3 causing the valve lock part 23a to advance through a notch 38 in the curved guide bar 35. The valve lock part 23a, its uppermost part, is dimensioned to extend through the notch 38 when the cradle 8 is in its outermost position and between the outermost position and a position where the valve lock operator 24 arranged to the measuring device 30 4 received in the cradle 8 has not reached the inlet 39 leading into guide groove
28a.
[0060] As shown in Figure 11, the valve lock operator 24 has moved through the inlet 39 and is in the guide groove 28a and the valve lock part 23a has passed through the notch 38. The valve lock mechanism is released, i.e. the rotation 35 of valve handle 12 is unlocked.
20185464 prh 18 -05- 2018 [0061] The curved guide bar 35 attached to the valve handle 12 forms a collision prevent part 29a preventing the measuring device 4 from colliding with a closed valve member 6 in the insertion phase. The vertical surface of the guide bar 35 facing the valve member 6 forms the collision prevent part 29a by blocking 5 the axial movement of the valve lock operator 24 towards the process space 3 if the valve member 6 is not open.
[0062] Figure 12 shows the arrangement in the phase of the opening isolation valve. In Figure 12 the valve handle 12 of the isolation valve 11 is rotated and the first end of the curved guide bar 36a moves towards the valve lock operate) tor 24 the valve lock operator 24 being in the guide groove 28a. At this phase the axial movement of the cradle 8 is neglible.
[0063] Figure 13 shows the arrangement in the phase where the isolation valve is fully open and Figure 14 shows a downwards view of the arrangement. By turning the valve handle 12 the protruding valve lock operator 24 has moved in 15 the guide groove 28a to the first end of the curved guide bar 36a and passed through the slot 31 in the stop bar 30. The cradle 8 has moved forward towards the process space 3 by operating the driving mechanism 9. The stop bar 30 extending in axial direction supports the valve lock operator 24 sideways.
[0064] Figure 15 shows the arrangement when the head of a measuring 20 device 2 is inserted to the process space 3. The flange of the measuring device 26 and the isolation valve flange 25 are attached to each other.
[0065] Figures 15-8 are also used to describe the removing the head of the measuring device 2 from the process space 3 as even though the operation of the arrangement shown in Figures is the opposite the locations of the arrangement 25 1 parts are similar in the removal and insertion processes.
[0066] In Figures 14 and 13 the isolation valve 11 is fully open. The joint between the measuring device 4 and the isolation valve 11 is unlocked and the pressure from the process space 3 pushes the measuring device 4 against the cradle 8 and the driving mechanism 9. The driving mechanism 9 is moving the cra30 die 8 away from the process space 3.
[0067] The arrangements comprises a closing mechanism allowing closing of the valve member 6 when the measuring device 4 is at a location barring a fluid 10 flow from the process space 3 and outside an isolation valve 11 of valve member 6. The protective closing mechanism prevents the closing of the valve 35 member 6 while the measuring device 4 is inserted to the valve member 6 and pre14
20185464 prh 18 -05- 2018 vents the removal of the measuring device 4 from the fluid 10 flow blocking position while the valve member 6 is open. The closing mechanism comprises the stop bar 30 and the stopper 32 arranged to the valve handle 12. The stop bar 30 and the stopper 32 correspond the stop bar and the stopper described in previous embod5 iment.
[0068] The valve handle 12 can be rotated when the cradle 8 has moved back to a position where the protruding valve lock operator 24 can pass through the slot 31. Otherwise the stop bar 30 blocks the movement of the valve handle 12 when it hits the protruding valve lock operator 24.
[0069] The stopper 32 halts the axial movement of the measuring device 4 and the cradle 8 at a location where the head of the measuring device 2 is in the sealing gasket part 13 of the valve member 6.
[0070] As shown in Figure 12 the valve handle 12 is then rotated to close the isolation valve 11. The rotation of the valve handle 12 is now made to 15 opposite direction than in the case of insertion. By turning the valve handle 12 the valve lock operator 24 passes through the slot 31 into the guide groove 28a at the first end of the curved guide bar 36a.
[0071] Figure 11 shows the phase where the valve handle 12 has been rotated such that the valve lock operator 24 has reached the second end of the 20 guide bar 36b. The valve lock operator 24 is ready to exit the guide bar 35 through the inlet 39 by operating of the driving mechanism 9 pulling the cradle 8.
[0072] In Figures 10 and 9 the driving mechanism 9 has moved the cradle 8 containing the measuring device 4 to its outermost position and the measuring device 4 can be pulled out from the cradle 8. The valve lock part 23a extends 25 through the notch 38 formed to the curved guide bar 35 and blocks the rotational movement of the valve handle 12.
[0073] In Figures 8-15 shown the valve handle 12, the curved guide bar 35 and the stiffening beam 37 which are connected to each other form a shape of a sector of a circle.
[0074] The cradle 8 can comprise a curved support beam between the two sides of the cradle 22 for supporting the measuring device 4 from below. Further, the measuring device 4 can comprise a ribbing of the cover at the other end opposing the measuring head 2. The ribbing may serve the purpose of increased outer surface of the measuring device 4 for increased heat transfer. Then the curved support beam positioned between two adjacent ribs supports the measuring device 4 from below and also in axial direction.
[0075] In the arrangement the valve member 6, the measuring device and the traction tool 5 are positioned in one side of the process space 3. In the arrangement 1 shown in Figures in the process space 3 comprises one opening for the connection between the fluid 10 in the process space 3 and the head of meas5 uring device 2. The operation from one side of the process space 3 saves also space needed for operating the arrangement.
[0076] The arrangement is advantageous for measuring devices used in in-line measurements. The arrangement provides a fool proof and a failsafe construction.
[0077] It will be obvious to a person skilled in the art that, as the technology advances, the inventive concept can be implemented in various ways. The invention and its embodiments are not limited to the examples described above but may vary within the scope of the claims.
[0078] List of parts: 1 an arrangement; 2 a head of a measuring device,
3 a process space; 4 a measuring device; 5 a retractor tool; 6 a valve member; 7 rails; 8 a cradle; 9 a driving mechanism; 10 fluid; 11 an isolation valve; 12 a valve handle; 13 a sealing gasket part; 14 a body of measuring device; 15 a cross beam;
a threaded shaft; 17 a hand-wheel; 18 an end plate; 19, 19a, 19b a projecting part; 20, 20a, 20b a recess; 21 an opening; 22 a side of a cradle; 23, 23a a valve lock 20 part; 24 valve lock operator; 25 an isolation valve flange; 26 a flange of the measuring device; 27 a guide plate; 28, 28a a guide groove; 29, 29a a collision prevent part; 30 a stop bar; 31a slot; 32 a stopper; 33 a closure element; 34a,b an end of a rail; 35 a guide bar; 36a,b an end of a guide bar; 37 a stiffening beam; 38 a notch;
an inlet; F an axial loading; L a length direction; w a width direction.

Claims (17)

PATENTTIVAATIMUKSET 1. Järjestely mittalaitteen pään sijoittamiseksi prosessitkaan ja poistamiseksi prosessitilasta, järjestely (1) käsittää prosessitilan (3), mittalaitteen (4) käsittäen mittapään (2) sen toisessa päässä ja vetolaitteen (5), jossa venttiiliosa (6) on yhdistettynä prosessitkaan (3) ja vetolaite on yhdistettynä venttiiliosaan (6), tunnettu siitä, että vetolaite (5) käsittää kiskot (7), kiskojen ensimmäiset päät (34a) on liitetty venttiiliosaan (6) ja kiskojen (7) toiset päät on yhdistetty poikkipalkilla (15), kelkan (8) vastaanottamaan mittalaite (4) ja järjestettynä liukumaan kiskoja (7) pitkin, mittalaite (4) on järjestetty liukumaan kiskojen (7) välissä ollessaan vastaanotettuna kelkassa (8), ja käyttömekanismin (9) liikuttamaan kelkkaa (8), ja järjestely (1) käsittää venttiilin lukkomekanismin, joka estää venttiiliosan (6) avaamisen kun mittalaite (4) ei ole fluidivirtauksen (10) prosessitilasta (3) sulkevassa asemassa, ja mittalaitteen pää (2) on sijoitettavissa prosessitilaan (3) ja poistettavissa prosessitilasta (3) kun mittalaite (4) on vastaanotettuna kelkassa (8).An arrangement for positioning and removing a measuring device head from a process stream, the arrangement (1) comprising a process space (3), a measuring device (4) comprising a probe (2) at one end and a drive device (5) having a valve member (6) and the drive unit is connected to the valve member (6), characterized in that the drive device (5) comprises rails (7), the first ends (34a) of the rails are connected to the valve member (6) and the second ends of the rails (7) (8) receiving the measuring device (4) and arranged to slide along the rails (7), the measuring device (4) being arranged to slide between the rails (7) when received in the carriage (8), and the drive mechanism (9) to move the carriage (8); 1) comprises a valve locking mechanism which prevents the valve member (6) from being opened when the measuring device (4) is not in a position closing the fluid flow (10) from the process space (3), and the end of the measuring device (2) can be placed in the process space (3) and removed from the process space (3) when the measuring device (4) is received in the carriage (8). 2. Patenttivaatimuksen 1 mukainen järjestely, tunnettu siitä, että venttiiliosa (6) käsittää eristysventtiilin (11), venttiilin kahvan (12) eristysventtiilin (11) käyttämiseksi ja tiivistelaippaosan (13).Arrangement according to Claim 1, characterized in that the valve part (6) comprises an isolation valve (11), a valve handle (12) for actuating the isolation valve (11) and a sealing flange part (13). 3. Patenttivaatimuksen 2 mukainen järjestely, tunnettu siitä, että venttiilin lukkomekanismi käsittää kaarevan ohjauspalkin (35) yhdistettynä venttiilin kahvaan (12), venttiilin lukko-osan (23,23a) ja venttiilin lukon käyttimen (24).An arrangement according to claim 2, characterized in that the valve locking mechanism comprises a curved guide bar (35) connected to the valve handle (12), a valve locking part (23,23a) and a valve lock actuator (24). 4. Patenttivaatimuksen 3 mukainen järjestely, tunnettu siitä, että venttiilin lukon käytin (24) käsittää mittalaitteeseen (4) järjestetyn ulkonevan osan.Arrangement according to Claim 3, characterized in that the valve lock actuator (24) comprises a protruding part arranged in the measuring device (4). 5. Patenttivaatimuksen 4 mukainen järjestely, tunnettu siitä, että kaareva ohjauspalkki (35) käsittää ohjausuran (28a), jossa venttiilin lukon käyttimen (24) ulkoneva osa on liikuteltavissa.Arrangement according to claim 4, characterized in that the curved guide bar (35) comprises a guide groove (28a) in which the protruding part of the valve lock actuator (24) is movable. 6. Minkä tahansa patenttivaatimuksen 1-5 mukainen järjestely, tunnettu siitä, että järjestely käsittää törmäyksen esto-osan (29,29a) estämään mittalaitteen (4) törmäyksen suljetun venttiiliosan (6) kanssa tukkimalla venttiilin lukon käyttimen (24) aksiaalisen liikkeen.Arrangement according to any one of claims 1 to 5, characterized in that the arrangement comprises an anti-collision part (29,29a) to prevent the measuring device (4) from colliding with the closed valve part (6) by blocking the axial movement of the valve lock actuator (24). 7. Patenttivaatimuksen 6 mukainen järjestely, tunnettu siitä, että törmäyksen esto-osa käsittää (29a) ohjauspalkin (35) venttiiliosan (6) puoleisen pystypinnan.Arrangement according to Claim 6, characterized in that the anti-collision part (29a) comprises a vertical surface facing the valve part (6) of the guide beam (35). 8. Minkä tahansa patenttivaatimuksen 1-7 mukainen järjestely, tunnettu siitä, että järjestely (1) käsittää sulkumekanismin, joka sallii venttiiliosan (6) sulkemisen kun mittalaite (4) on fluidivirtauksen (10) prosessitilasta (3) sulkevassa asemassa ja venttiiliosan (6) eristysventtiilin ulkopuolella.Arrangement according to one of Claims 1 to 7, characterized in that the arrangement (1) comprises a closing mechanism which allows the valve part (6) to be closed when the measuring device (4) is in the closing position of the fluid flow (10) from the process space (3) outside the isolation valve. 9. Minkä tahansa patenttivaatimuksen 2-8 mukainen järjestely, tunnettu siitä, että venttiilin kahva (12) käsittää pysäyttimen (32), mittalaitteen (4) liike on pysäytettävissä pysäyttimellä (32) ja siten estetään mittalaitteen pään (2) poistaminen venttiiliosasta (6) suljinelementin (33) ollessa auki.Arrangement according to any one of claims 2 to 8, characterized in that the valve handle (12) comprises a stop (32), the movement of the measuring device (4) can be stopped by the stop (32) and thereby prevent the measuring device head (2) with the closure element (33) open. 10. Minkä tahansa patenttivaatimuksen 2-9 mukainen järjestely, tunnettu siitä, että venttiilin kahva (12) käsittää pysäytyspalkin (30) aksiaalisivullaan ja pysäytyspalkki (30) käsittää päässään aukon (31) venttiilin lukon käyttimelle (24).An arrangement according to any one of claims 2 to 9, characterized in that the valve handle (12) comprises a stop beam (30) on its axial side and the stop beam (30) comprises an opening (31) for the valve lock actuator (24). 11. Minkä tahansa patenttivaatimuksen 1-10 mukainen järjestely, tunnettu siitä, että mittalaite (4) käsittää ulkonevia osia (19) ja kelkka (8) käsittää syvennyksiä (20) toimittaen muotolukitteisen liitoksen mittalaitteen (4) ja kelkan (8) välille.Arrangement according to any one of Claims 1 to 10, characterized in that the measuring device (4) comprises projections (19) and the carriage (8) comprises recesses (20) providing a form-locked connection between the measuring device (4) and the carriage (8). 12. Minkä tahansa patenttivaatimuksen 1-11 mukainen järjestely, tunnettu siitä, että venttiiliosa (6), mittalaite (4) ja vetolaite (5) on sijoitettu yhdelle puolelle prosessitilaa (3).An arrangement according to any one of claims 1 to 11, characterized in that the valve part (6), the measuring device (4) and the drive device (5) are located on one side of the process space (3). 13. Minkä tahansa patenttivaatimuksen 1-12 mukainen järjestely, tunnettu siitä, että mittalaite (4) on sensori, analysaattori tai optinen analysaattori.An arrangement according to any one of claims 1 to 12, characterized in that the measuring device (4) is a sensor, an analyzer or an optical analyzer. 14. Menetelmä mittalaitteen pään sijoittamiseksi prosessitilaan ja poistamiseksi prosessitilasta, menetelmä käsittää prosessitilan (3), mittalaitteen (4) käsittäen mittapään (2) sen toisessa päässä ja vetolaitteen (5), jossa venttiiliosa (6) on yhdistettynä prosessitilaan (3) ja vetolaite on yhdistettynä venttiiliosaan (6),A method for positioning and removing a probe head in a process space, the method comprising a process space (3), a measuring device (4) comprising a probe (2) at one end thereof and a drive device (5) having a valve member (6) connected to the process space (3) in combination with the valve part (6), 5 tunnettu siitä, että vetolaite (5) käsittää kiskot (7), kiskojen ensimmäiset päät (34a) on liitetty venttiiliosaan (6) ja kiskojen (7) toiset päät on yhdistetty poikkipalkilla (15), kelkan (8) ja käyttömekanismin (9), jossa kelkka (8) vastaanottaa mittalaitteen (4) ja liukuu kiskoja (7) pitkin, menetelmässä mittalaite (4) liukuu kiskojen (7) välissä ollessaan vastaanotettuna kelkassa (8), ja 10 käyttömekanismi (9) liikuttaa kelkkaa (8), ja menetelmä käsittää venttiilin lukkomekanismin, joka estää venttiiliosan (6) avaamisen kun mittalaite (4) ei ole fluidivirtauksen (10) prosessitilasta (3) sulkevassa asemassa, ja mittalaitteen pää (2) sijoitetaan prosessitilaan (3) ja poistetaan prosessitilasta (3) asettamalla mittalaite (4) kelkkaan (8) ja käyttämällä käyttömekanismia (9) ja venttiiliosaa (6).5 characterized in that the drive device (5) comprises rails (7), the first ends (34a) of the rails are connected to the valve part (6) and the second ends of the rails (7) are connected by a cross beam (15), carriage (8) and drive mechanism (9). wherein the sledge (8) receives the measuring device (4) and slides along the rails (7), in the method the measuring device (4) slides between the rails (7) when received in the sledge (8), and the drive mechanism (9) the method comprising a valve locking mechanism which prevents the valve member (6) from being opened when the measuring device (4) is not in the closing position of the fluid flow (10) from the process space (3), and positioning the measuring device end (2) in the process space (3) 4) to the carriage (8) and using the drive mechanism (9) and the valve part (6). 15. Patenttivaatimuksen 14 mukainen menetelmä, tunnettu siitä, että venttiilin lukkomekanismi käsittää venttiilin kahvan (12), kaarevan ohjauspalkin (35) yhdistettynä venttiilin kahvaan (12), venttiilin lukko-osan (23a) järjestettynä kelkkaan (8) ja venttiilin lukon käyttimen (24) järjestettynäMethod according to claim 14, characterized in that the valve locking mechanism comprises a valve handle (12), a curved guide bar (35) connected to the valve handle (12), a valve lock part (23a) arranged in a carriage (8) and a valve lock actuator (24). ) arranged 20 mittalaitteeseen (4), ja venttiilin lukkomekanismi vapautetaan liikuttamalla mittalaitteen (4) sisältävää kelkkaa (8) käyttömekanismilla (9) kohti prosessitilaa (3) kunnes venttiilin lukko-osa (23a) on edennyt kaarevaan ohjauspalkkiin (35) muodostetun loven (38) läpi ja venttiilin lukon käytin (24) on kaarevan ohjauspalkin (35) ohjausurassa (28a), mikä avaa venttiilin kahvan (12) kiertymisen20, and the valve locking mechanism is released by moving the carriage (8) containing the measuring device (4) by the actuating mechanism (9) toward the process space (3) until the valve locking portion (23a) passes through a notch (38) in and the valve lock actuator (24) is in the guide groove (28a) of the curved guide bar (35), which opens the rotation of the valve handle (12) 25 lukituksen.25 unlocking.
FI20185464A 2017-06-12 2018-05-18 An arrangement and a method for inserting and removing a head of a measuring device to and from a process space FI127748B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102018113583.1A DE102018113583B4 (en) 2017-06-12 2018-06-07 ARRANGEMENT FOR INSERTING AND REMOVING A PROBE HEAD OF A PROBE INTO AND FROM A PROCESS ROOM
US16/003,955 US10866078B2 (en) 2017-06-12 2018-06-08 Arrangement and a method for inserting and removing a head of a measuring device to and from a process space
CN201810588168.7A CN109029523B (en) 2017-06-12 2018-06-08 Apparatus and method for inserting and removing a head of a measuring device into and from a processing space

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