Auxiliary device for replacing regulating valve positioner

Abstract

The utility model relates to the technical field of regulating valve maintenance, in particular to an auxiliary device for replacing a regulating valve positioner, which comprises a first support frame, a second support frame and a third support frame, the first support frame can be attached to the bottom side of a connecting flange of a regulating valve rod, and clamps are arranged at two end parts of the first support frame and can be in limit connection with a vertical support part of a regulating valve frame; the second supporting frame can be arranged on the top side of a connecting flange of the adjusting valve rod in an attached mode, clamps are arranged at the two ends of the second supporting frame, the first supporting frame and the second supporting frame are detachably connected through a connecting rod, and the connecting rod is in threaded connection with an adjusting nut. The first supporting frame supports a connecting flange of a valve rod of the adjusting valve, the positioning device is supported through the auxiliary device after being detached, the working state of the adjusting valve is kept, the influence of replacement of the positioning device on production is reduced, meanwhile, the second supporting frame is matched with the first supporting frame, the number of clamps connected with an adjusting valve frame is increased, and the production efficiency is improved. The valve rod of the regulating valve is stably limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve maintenance, and particularly relates to an auxiliary device for replacing a governing valve positioner. BACKGROUND

[0002] The governing valve mainly receives signals from a controller through a positioner, and then converts the signals into actions that can directly drive the governing valve through mechanical structures or electronic elements inside the positioner, so that the valve position of the governing valve can be changed by changing the output signals of the controller, thereby realizing accurate control over the production process.

[0003] However, the positioner needs to be replaced due to aging or other reasons after long-term use. When replacing the positioner, the existing governing valve needs to be switched to other pipelines or stopped for maintenance, which greatly affects production. After the replacement of the positioner is completed, the positioner needs to be re-adjusted, and the adjustment process cannot guarantee the normal production, which has operation risks. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the prior art that the replacement of the existing governing valve positioner needs to switch the governing valve to other pipelines or stop for maintenance, which greatly affects production and has operation risks, and provides an auxiliary device for replacing a governing valve positioner.

[0005] The utility model provides an auxiliary device for replacing a governing valve positioner, which comprises:

[0006] A first support frame can be attached to the bottom side of the connecting flange of the valve stem of the governing valve, and clamps are arranged at the two ends of the first support frame, which can be connected to the vertical support part of the frame of the governing valve.

[0007] A second support frame can be attached to the top side of the connecting flange of the valve stem of the governing valve, and clamps are arranged at the two ends of the second support frame, and the first support frame and the second support frame are detachably connected through connecting rods, and an adjusting nut is threadedly connected to the connecting rod.

[0008] The utility model discloses a kind of auxiliary devices for regulating valve positioner replacement, by clamp and regulating valve frame connection, make the first support frame to the connecting flange of regulating valve stem play supporting action, make valve stem can be limited in certain position, after positioner dismounting by auxiliary device support, keep the working condition of regulating valve, reduce the influence of positioner replacement to production, simultaneously, by the cooperation of second support frame and first support frame, increase the number of clamp connected with regulating valve frame, improve the limiting stability of valve stem, when using, adjusting nut can be rotated according to actual situation, by connecting rod tensioning first support frame and second support frame, make first support frame and second support frame mutually assist, realize the stable limiting of regulating valve stem.

[0009] Preferably, the first support frame includes a first clamping block provided with a first clamping groove adapted to the valve stem; the second support frame includes a second clamping block provided with a second clamping groove adapted to the valve stem; the first clamping block and the second clamping block are respectively provided with a connecting hole for the connecting rod to pass through, and the connecting hole is a strip-shaped hole.

[0010] Preferably, the clamp includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are buckled and connected to form a clamping groove adapted to the frame support rod, and the clamping groove is provided with an anti-skid pad.

[0011] Preferably, the clamping groove is in the shape of a round hole or a long strip.

[0012] Preferably, further comprising a support base plate, the support base plate is provided with a third clamping groove adapted to the valve stem, and a support stand is arranged between the support base plate and the first support frame, and the bottom of the support stand is slidingly connected to the support base plate. The first support frame is further vertically supported by the support base plate and the support stand.

[0013] Preferably, the support base plate is provided with a sliding groove, the extension direction of the sliding groove is consistent with the extension direction of the third clamping groove, the bottom of the support stand is connected to a sliding plate, and the sliding plate is slidingly connected to the sliding groove.

[0014] Preferably, the sliding plate is provided with a sliding channel, the extension direction of the sliding channel is perpendicular to the extension direction of the sliding groove, and the bottom end of the support stand is arranged in the sliding channel.

[0015] Preferably, the support stand includes a bottom segment and a top segment, the top segment is provided with a channel with internal threads, the bottom segment is threadedly connected to the channel, and the end of the top segment close to the bottom segment is provided with a clamping portion.

[0016] Preferably, the end of the top segment away from the bottom segment is detachably connected to a support plate.

[0017] Preferably, the support bottom plate can extend to the outside of the regulating valve frame, and an operation platform is formed on the support bottom plate.

[0018] Compared with the prior art, the utility model has the beneficial effects of:

[0019] 1. The utility model provides a kind of auxiliary device for regulating valve positioner replacement, is connected with regulating valve frame by clamp, can make the first support frame to the connecting flange of regulating valve stem play the supporting action, make valve stem limit in certain position, after positioner dismounting, support by auxiliary device, keep the working condition of regulating valve, reduce the influence of positioner replacement to production;

[0020] 2. The utility model provides a kind of auxiliary device for regulating valve positioner replacement, by the cooperation of second support frame and first support frame, can increase the number of clamp connected with regulating valve frame, improve the limiting stability of valve stem;

[0021] 3. The utility model provides a kind of auxiliary device for regulating valve positioner replacement, when using, adjusting nut can be rotated according to actual situation, first support frame and second support frame are pulled tight by connecting rod, so that first support frame and second support frame mutually assist, realize the stable limiting of regulating valve stem. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 for the use state schematic drawing of the auxiliary device for regulating valve positioner replacement of example 1;

[0023] Figure 2 for the structure schematic of first support frame in example 1 Figure 1 ;

[0024] Figure 3 for the overhead view in the combination process of first support frame and second support frame in example 1;

[0025] Figure 4 for the structure schematic of first support frame in example 1 Figure 2 ;

[0026] Figure 5 for the structure schematic drawing of support bottom plate in example 2;

[0027] Figure 6 for the use state schematic drawing of a kind of auxiliary device for regulating valve positioner replacement of example 2;

[0028] Figure 7 for the use state overhead view of a kind of auxiliary device for regulating valve positioner replacement of example 2;

[0029] Markings in figure:

[0030] 1-first support frame, 11-first clamping block, 12-first clamping slot, 2-clamp, 21-first clamping plate, 22-second clamping plate, 23-clamping slot, 3-second support frame, 31-second clamping block, 32-second clamping slot, 4-connecting rod, 41-adjusting nut, 5-connection hole, 6-non-slip pad, 7-supporting bottom plate, 71-third clamping slot, 72-sliding slot, 73-operation platform, 8-supporting stand, 81-sliding plate, 82-sliding channel, 83-bottom segment, 84-top segment, 85-clamping part, 9-adjusting valve, 91-valve stem, 92-connection flange, 93-frame, 94-vertical support part. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with specific embodiments. However, this should not be understood as the scope of the above-mentioned subject matter of the utility model being limited to the following embodiments. Any technology realized based on the content of the utility model falls within the scope of the utility model.

[0032] In the description of the specific embodiments of the utility model, the terms expressing the orientation or positional relationship of "up", "down", "left", "right", "center", "inner", "outer", etc. are based on the orientation or positional relationship expressed in the drawings or the orientation or positional relationship of the utility model product / equipment / device when it is usually used. These terms of orientation or positional relationship are only used to facilitate the description of the utility model scheme or simplify the description in the specific embodiments, so as to enable the skilled person to quickly understand the scheme, and therefore cannot be understood as indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and thus cannot be understood as limiting the utility model.

[0033] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simply understood that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel", etc. and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the utility model.

[0034] In addition, the expressions “first”, “second”, “third”, etc. in the terms are merely used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0035] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0036] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0037] Example 1

[0038] like Figures 1-4 As shown, an auxiliary device for replacing a regulating valve positioner includes a first support frame 1 and a second support frame 3. The first support frame 1 can be fitted on the bottom side of a connecting flange 92 of a valve stem 91 of a regulating valve 9. Clamps 2 are provided at both ends of the first support frame 1. The clamps 2 can be limitedly connected to the vertical support portion 94 of a frame 93 of the regulating valve 9; the second support frame 3 can be fitted on the top side of a connecting flange 92 of a valve stem 91 of a regulating valve 9. Clamps 2 are also provided at both ends of the second support frame 3. The first support frame 1 and the second support frame 3 are detachably connected by a connecting rod 4, and an adjusting nut 41 is threadedly connected to the connecting rod 4.

[0039] An auxiliary device for replacing a regulating valve positioner according to this embodiment, such as Figure 1As shown, the adjusting valve 9 includes a valve stem 91, and a connecting flange 92 is arranged on the valve stem 91 to connect the upper and lower two sections. A frame 93 with a vertical support part 94 is arranged between the top control part and the bottom valve body part of the adjusting valve 9. In use, the auxiliary device of the present embodiment is connected with the frame 93 of the adjusting valve 9 through the clamp 2, so that the first support frame 1 supports the connecting flange 92 of the valve stem 91 of the adjusting valve 9, and the valve stem 91 can be limited in a certain position. After the positioner is disassembled, the auxiliary device supports, maintains the working state of the adjusting valve 9, reduces the influence of the positioner replacement on the production, and at the same time, through the cooperation of the second support frame 3 and the first support frame 1, the number of clamps 2 connected with the frame 93 of the adjusting valve 9 is increased, and the limiting stability of the valve stem 91 is improved. In use, the adjusting nut 41 can be rotated according to the actual situation, the first support frame 1 and the second support frame 3 are tensioned through the connecting rod 4, the first support frame 1 and the second support frame 3 are mutually assisted, and the stable limiting of the valve stem 91 of the adjusting valve 9 is realized.

[0040] In one or several embodiments, as Figure 2 shown, the first support frame 1 includes a first clamping block 11, and the first clamping block 11 is provided with a first clamping groove 12 matched with the valve stem 91. The second support frame 3 includes a second clamping block 31, and the second clamping block 31 is provided with a second clamping groove 32 matched with the valve stem 91. The first clamping block 11 and the second clamping block 31 are respectively provided with a connecting hole 5 for the connecting rod 4 to pass through, and the connecting hole 5 is a strip-shaped hole.

[0041] In an optional embodiment, the first clamping block 11 and the second clamping block 31 can be plate-shaped structural members with rectangular shapes and notch-shaped first clamping grooves 12 and second clamping grooves 32. The two sides are connected with the clamp 2 through rod-shaped structural members. Through the first clamping groove 12 and the second clamping groove 32, the first support frame 1 and the second support frame 3 can be conveniently clamped at the appropriate position of the valve stem 91 of the adjusting valve 9. Through the first clamping block 11 and the second clamping block 31, the first support frame 1 and the second support frame 3 have sufficient contact area with the connecting flange 92 on the valve stem 91.

[0042] In an optional embodiment, as Figure 3 shown, the first clamping block 11 and the second clamping block 31 can clamp the valve stem 91 from the opposite two directions of the valve stem 91, and fit the top side and the bottom side of the connecting flange 92 of the valve stem 91. Then according to the actual situation, the connecting rod 4 is passed through the connecting hole 5. The connecting rod 4 can be a screw rod. According to the actual situation, the position of the connecting rod 4 is adjusted to avoid other structures in the frame 93 of the adjusting valve 9. Then the adjusting nut 41 is rotated, which can realize that the first clamping block 11 and the second clamping block 31 are clamped on the connecting flange 92 of the valve stem 91.

[0043] In one or several embodiments, the clamp 2 comprises a first clamping plate 21 and a second clamping plate 22, the first clamping plate 21 and the second clamping plate 22 are connected by buckling, forming a clamping groove 23 matched with the frame 93 support rod, and the clamping groove 23 is provided with a non-slip pad 6.

[0044] In an optional embodiment, the first clamping plate 21 and the second clamping plate 22 can be connected by bolts, and the clamp 2 arranged on the first support frame 1 is taken as an example for description. Preferably, the first clamping plate 21 and the second clamping plate 22 are arranged on the outer side of the first support frame 1, so that the clamp 2 can be installed after the first support frame 1 and the second support frame 3 are clamped and stably installed on the valve rod 91, and it is convenient to replace the clamp 2 of different sizes to adapt to the stable connection with different types of vertical support parts 94.

[0045] In an optional embodiment, as shown in Figures 2-3 , the clamping groove 23 is in the shape of a round hole, which can adapt to the stable arrangement of the auxiliary device on the regulating valve 9 with a cylindrical vertical support part 94.

[0046] In an optional embodiment, as shown in Figure 4 , the clamping groove 23 is in the shape of a long strip, which can adapt to the stable arrangement of the auxiliary device on the regulating valve 9 with a flat plate-shaped vertical support part 94.

[0047] In an optional embodiment, the non-slip pad 6 can be a rubber pad or other pad structure with anti-slip effect, so as to further improve the contact stability of the auxiliary device and the vertical support part 94 through the non-slip pad 6, and the space in the clamping groove 23 can be filled through the non-slip pad 6, so that the clamp 2 does not need to be arranged to be completely consistent with the size of the vertical support part 94 of the regulating valve 9, and the clamp 2 can be replaced to adapt to the clamping connection of vertical support parts 94 of different sizes, which is conducive to reducing the preparation cost of the auxiliary device.

[0048] Embodiment 2

[0049] As shown in Figures 5-7 , the auxiliary device for replacing the regulating valve positioner of the present embodiment further comprises a support bottom plate 7 provided with a third clamping groove 71 matched with the valve rod 91, and a support stand 8 between the support bottom plate 7 and the first support frame 1, and the bottom of the support stand 8 is in sliding cooperation with the support bottom plate 7, on the basis of embodiment 1.

[0050] The support bottom plate 7 can be a long strip-shaped plate structure, and the third clamping groove 71 penetrates through one side of the support bottom plate 7 along the length direction of the support bottom plate 7. The support bottom plate 7 can be clamped on the valve rod 91 of the regulating valve 9 through the third clamping groove 71 and placed on the inner bottom side of the frame 93 of the regulating valve 9, so that the support bottom plate 7 and the support column 8 vertically support the first support frame 1, improve the support stability at the connecting flange 92, and play a stabilizing role on the valve rod 91 of the regulating valve 9 when it is inconvenient to set the clamp 2 on the frame 93 of the regulating valve 9.

[0051] In one or more embodiments, as shown in Figure 5 The support bottom plate 7 can be provided with a sliding groove 72, the extension direction of the sliding groove 72 is consistent with the extension direction of the third clamping groove 71, the sliding plate 81 is connected to the bottom of the support column 8 and is slidingly arranged in the sliding groove 72, so that the sliding plate 81 can be moved along the sliding groove 72, the position of the support column 8 relative to the support bottom plate 7 can be changed, and the position of the support column 8 can be adjusted according to actual conditions, so that the support column 8 is supported between the support bottom plate 7 and the first support frame 1.

[0052] In one or more embodiments, the sliding plate 81 can be further provided with a sliding channel 82, the extension direction of the sliding channel 82 can be perpendicular to the extension direction of the sliding groove 72, and the bottom end of the support column 8 is arranged in the sliding channel 82, so as to further expand the adjustment range of the support column 8 relative to the support bottom plate 7, and enable the support column 8 to move towards a direction closer to the valve rod 91, so as to improve the support effect.

[0053] In one or more embodiments, as shown in Figure 6 The support column 8 includes a bottom section 83 and a top section 84, the top section 84 is provided with a channel with an internal thread, the bottom section 83 is threadedly connected with the channel, and the end of the top section 84 close to the bottom section 83 is provided with a clamping portion 85.

[0054] In an optional embodiment, the bottom section 83 can be a stud, the bottom end is adapted to the sliding channel 82 on the sliding plate 81, and is limited after being adjusted by sleeving a nut; the top section 84 is a cylindrical structure, the top section 84 is threadedly connected with the bottom section 83, and the clamping portion 85 can be a nut welded at one end of the top section 84. During use, the clamping portion 85 can be clamped by a tool, and the bottom section 83 and the top section 84 are relatively rotated to realize height adjustment of the support column 8.

[0055] In one or more embodiments, the end of the top section 84 away from the bottom section 83 is detachably connected with a support plate. The support area is increased by the support plate to avoid structural damage caused by stress concentration.

[0056] In an optional embodiment, the support plate can be fixedly connected with the top segment 84, or can be supported between the top segment 84 and the first support frame 1, and can be set or cancelled according to actual conditions.

[0057] In one or more embodiments, the support bottom plate 7 can extend to the outside of the frame 93 of the regulating valve 9, and an operation platform 73 is formed on the support bottom plate 7. The operation platform 73 is provided for the replacement of the positioner, and facilitates the data transmission of the new positioner and the old positioner.

[0058] In an optional embodiment, as shown in Figure 7 the length of the support bottom plate 7 can be set to be relatively long, and the local width can be set to be greater than the width of the frame 93 of the regulating valve 9, so that after the support bottom plate 7 is clamped to the valve rod 91, the operation platform 73 is formed on one side of the regulating valve 9, and when the positioner is replaced, the relevant tools or the new positioner can be arranged on the operation platform 73, and the data transmission of the new positioner and the old positioner is facilitated, so that the new positioner can obtain the positioning information of the old positioner, the debugging process after the replacement of the positioner is reduced, the influence of the replacement of the positioner of the regulating valve 9 on the production is further reduced, and the replacement efficiency is improved.

[0059] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary device for regulating valve positioner replacement, characterized in that, The utility model relates to a kind of support frame for regulating valve, including: First support frame (1), the first support frame (1) can be set to the connecting flange (92) bottom side of regulating valve (9) valve stem (91), the both ends of the first support frame (1) are equipped with clamp (2), the clamp (2) can be limit position connection with the vertical support part (94) of regulating valve (9) frame (93); Second support frame (3), the second support frame (3) can be set to the connecting flange (92) top side of regulating valve (9) valve stem (91), the both ends of the second support frame (3) are equipped with the clamp (2), the first support frame (1) and the second support frame (3) are detachably connected by connecting rod (4), and adjusting nut (41) is connected on the connecting rod (4).

2. An auxiliary device for regulating valve positioner replacement according to claim 1, characterized in that, The first support frame (1) includes first clamping block (11), and the first clamping block (11) is provided with a first clamping groove (12) matched with the valve stem (91);The second support frame (3) includes second clamping block (31), and the second clamping block (31) is provided with a second clamping groove (32) matched with the valve stem (91);The first clamping block (11) and the second clamping block (31) are respectively provided with a connecting hole (5) for the connecting rod (4) to pass through, and the connecting hole (5) is a strip-shaped hole.

3. An auxiliary device for regulating valve positioner replacement according to claim 1, characterized in that, The clamp (2) includes first clamping plate (21) and second clamping plate (22), and the first clamping plate (21) and the second clamping plate (22) are buckled and connected to form a clamping groove (23) matched with the frame (93) support rod, and an antiskid pad (6) is arranged in the clamping groove (23).

4. An auxiliary device for regulating valve positioner replacement according to claim 3, characterized in that, The clamping groove (23) is in the form of a round hole or a long strip.

5. An auxiliary device for replacing a regulating valve positioner according to any one of claims 1 to 4, characterized in that: It also includes a support base plate (7), which is provided with a third clamping groove (71) matched with the valve stem (91), and a support stand (8) is arranged between the support base plate (7) and the first support frame (1), and the bottom of the support stand (8) is slidingly connected with the support base plate (7).

6. An auxiliary device for regulating valve positioner replacement according to claim 5, characterized in that, The support base plate (7) is provided with a sliding groove (72), and the extension direction of the sliding groove (72) is consistent with the extension direction of the third clamping groove (71), and the bottom of the support stand (8) is connected with a sliding plate (81), and the sliding plate (81) is slidingly connected with the sliding groove (72).

7. An auxiliary device for regulating valve positioner replacement according to claim 6, characterized in that, The sliding plate (81) is provided with a sliding channel (82), and the extension direction of the sliding channel (82) is perpendicular to the extension direction of the sliding groove (72), and the bottom end of the support stand (8) is arranged in the sliding channel (82).

8. An auxiliary device for regulating valve positioner replacement according to claim 6, characterized in that, The support stand (8) includes a bottom segment (83) and a top segment (84), the top segment (84) is provided with a channel with internal threads, the bottom segment (83) is threadedly connected with the channel, and the top segment (84) is provided with a clamping portion (85) at one end close to the bottom segment (83).

9. An auxiliary device for regulating valve positioner replacement according to claim 8, characterized in that, The top segment (84) is detachably connected with a support plate at the end away from the bottom segment (83).

10. An auxiliary device for regulating valve positioner replacement according to claim 5, characterized in that, The support base plate (7) can extend to the outside of the frame (93) of the regulating valve (9), and an operation platform (73) is formed on the support base plate (7).

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