Clamping device and assembling and disassembling device for filter element of sand remover

Abstract

The utility model relates to the field of natural gas desanding, in particular to a clamping device and an assembling and disassembling device for a desander filter element, the clamping device comprises a cross rod and a clamping component, and a position adjusting device is arranged on the cross rod; the clamping component is in sliding connection with the cross rod, and the clamping component can slide in the axial direction of the cross rod; the clamping component comprises a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are oppositely arranged in the axial direction of the cross rod; the first clamping piece and the second clamping piece are both in limiting connection with the position adjusting device, and the first clamping piece and the second clamping piece can both be in limiting connection with the filter holes; the first clamping piece and the second clamping piece are connected with the filter hole in a limiting manner, so that the clamping device can be fixed on the filter element; the loading and unloading device comprises a lifting device and the clamping device, the lifting device is connected with the transverse rod and provided with a base, and the base abuts against the maintenance opening in the top of the sand remover. The bottom plate can support the loading and unloading device, so that the lifting device can drive the filter element to lift.

Description

Technical Field

[0001] The utility model relates to the field of natural gas sand removal, in particular to a clamping device and a loading and unloading device for a filter element of a sand remover. Background Art

[0002] With the continuous promotion and application of volume fracturing technology in oil and gas fields, the amount of sand and fiber entering the ground in a single well has increased exponentially compared with conventional fracturing. While the production of volume fracturing wells has been greatly improved, they are also generally faced with the phenomenon of sand production in gas wells damaging the process. In order to ensure the safe production of gas wells, gas well stations currently use filter-type desanders to remove sand and control sand, thereby reducing the erosion of gas well sand production on the process; Figure 1-Figure 2 As shown, a sealing ring 104 is provided on the outer wall of the filter element 101 of the filter type desander and is sealedly connected with the filter cartridge body 100. After the fluid enters the filter element 101, solid particles such as sand and fiber are precipitated at the bottom of the filter element 101 by gravity and centrifugal force, and the natural gas and fluid are discharged through the annular space between the filter element 101 and the filter cartridge body 100 to achieve the purpose of desanding.

[0003] However, in the actual production process, since the amount of sand produced by the gas well is large and mixed with fibers, the filter holes 103 of the filter element 101 are often seriously blocked, and the filter element 101 needs to be lifted regularly to facilitate the operator to clean or replace the filter element 101; the fibers and sand mixed in the filter holes 103 will increase the friction between the sealing ring 104 and the filter cartridge body 100, causing the lifting rod 102 to break when the operator operates the lifting rod 102, making it impossible to remove the filter element 101; and the operating space of the desander maintenance port is limited, which cannot meet the needs of multiple people operating at the same time. Utility Model Content

[0004] The utility model aims to overcome the disadvantage of the prior art that the filter element of the filter desander is difficult to remove after the lifting rod of the filter desander is broken, and provides a clamping device and a loading and unloading device for the filter element of the desander.

[0005] In a first aspect, the utility model provides a clamping device for a desander filter element, comprising:

[0006] A crossbar, wherein a position adjustment device is provided on the crossbar;

[0007] A holding member, wherein the holding member is slidably connected to the cross bar, and the holding member can slide along the axial direction of the cross bar; the holding member includes a first holding component and a second holding component, and the first holding component and the second holding component are relatively arranged along the axial direction of the cross bar; the first holding component is threadedly connected to the position adjustment device, and the second holding component is threadedly connected to the position adjustment device, and both the first holding component and the second holding component can pass through the filter hole.

[0008] The utility model discloses a clamping device for a filter element of a sand remover. The first clamping piece and the second clamping piece are respectively arranged on both axial sides of a cross bar. The first clamping piece and the second clamping piece clamp the filter element together, so that the clamping device of the filter element of the sand remover can be clamped and fixed on the filter element. The first clamping piece and the second clamping piece are arranged to slide axially on the cross bar, so that it is convenient to install and remove the first clamping piece and the second clamping piece on the filter element. The first clamping piece and the second clamping piece clamp the filter holes of the filter element, so that the first clamping piece and the second clamping piece are firmly fixed on the filter element. The position adjustment device can adjust the positions of the first clamping piece and the second clamping piece on the cross bar through a threaded connection, so that the first clamping piece and the second clamping piece can keep clamping the filter element. Thus, the cross bar replaces the lifting rod to lift the filter element.

[0009] Preferably, both ends of the cross bar are provided with sliding channels, the clamping member is provided with a sliding rod, the sliding rod is adaptively connected to the sliding channel, and the position adjustment device is threadedly connected to the sliding rod.

[0010] The sliding channel can be a channel with a circular cross-section, and the outer wall of the sliding rod abuts against the inner wall of the sliding channel, so that the sliding rod can be limited in the radial direction of the cross rod, so that the cross rod drives the sliding rod to lift the filter element vertically; in some embodiments, the sliding channel can also be a channel with a rectangular cross-section, so that the sliding channel can limit the rotation of the sliding rod, and the sliding rod can only be displaced along the axial direction, not limited to the above examples.

[0011] Preferably, a plurality of holding columns are arranged at intervals on the holding member, and the holding columns can pass through the filter holes.

[0012] The holding member can be firmly fixed on the filter element by passing a plurality of holding columns through different filter holes, and the spacing between the holding columns is the same as the spacing between the filter holes.

[0013] Preferably, the holding member is an arc-shaped plate, and the holding column is arranged on the concave side and / or the convex side of the holding member.

[0014] By adjusting the position adjustment device, the relative distance between the first clamping member and the second clamping member is adjusted, so that either the concave surface of the arc plate can be used to fit with the outer wall of the filter element, so that the clamping member and the filter element are more tightly connected; or the convex surface of the arc plate can be used to fit with the inner wall of the filter element, so that the clamping member and the filter element are more tightly connected.

[0015] Preferably, the holding member is detachably connected to the sliding rod.

[0016] By replacing different clamping components, the clamping device for the desander filter element can be used for filter elements of different specifications.

[0017] Preferably, the position adjustment device is provided with an adjustment wheel, the adjustment wheel is threadedly connected to the slide rod, and the adjustment wheel is rotatably connected to the position adjustment device.

[0018] The position adjustment device is provided with an adjustment channel through which the adjustment wheel is arranged. The side of the adjustment wheel is threadedly connected to the slide bar. By rotating the adjustment wheel, the relative position between the adjustment wheel and the slide bar is changed, thereby adjusting the telescopic distance between the first clamping member and the second clamping member.

[0019] Preferably, the sliding rod includes a first rod body and a second rod body, the first rod body is connected to the first clamping piece, the second rod body is connected to the second clamping piece, the first rod body is provided with a first adjusting screw rod, the second rod body is provided with a second adjusting screw rod, and the first adjusting screw rod and the second adjusting screw rod are both threadedly connected to the adjusting wheel.

[0020] The first adjusting screw rod and the second adjusting screw rod are both threadedly connected to the adjusting wheel, so that the adjusting wheel can synchronously control the telescopic distance of the first rod body and the second rod body.

[0021] A loading and unloading device for a desander filter element comprises a lifting device and the above-mentioned clamping device for the desander filter element, wherein the lifting device is connected to the cross bar and is provided with a base, and the base is used to abut against a maintenance port on the top of the desander.

[0022] The utility model discloses a loading and unloading device for a filter element of a sand remover. The base enables a lifting device to be placed on a maintenance port on the top of the sand remover so that the maintenance port can support the lifting device. The lifting device is connected to the cross bar so that the lifting device can drive the filter element to rise and fall.

[0023] Preferably, the lifting device includes a hydraulic push rod and a rope, one end of the rope is connected to the cross bar, and the other end of the rope is connected to the output end of the hydraulic push rod.

[0024] The flexible rope makes it easier to connect the cross bar to the hydraulic device, which is convenient for operators to operate. When two ropes are provided, the connection positions of the two ropes and the cross bar are symmetrically set to keep the filter element balanced when it is lifted or lowered.

[0025] Preferably, a force applying rod is provided at the output end of the hydraulic push rod, and the force applying rod is arranged horizontally. At least one first limiting groove is provided at each end of the force applying rod, and at least one second limiting groove is provided at each end of the cross bar. The first limiting groove and the second limiting groove are both used to clamp the rope.

[0026] Different positions of the annular rope are respectively clamped by the first limiting groove and the second limiting groove, so that the connection between the rope and the cross bar is more secure, and the connection between the rope and the force application rod is more secure, which is convenient for operators to operate.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. The utility model discloses a clamping device for a filter element of a sand remover, wherein a first clamping member and a second clamping member are respectively arranged on both axial sides of a cross bar, and the first clamping member and the second clamping member clamp the filter element together, so that the clamping device of the filter element of the sand remover can be clamped and fixed on the filter element; the first clamping member and the second clamping member are arranged to slide axially on the cross bar, so that the first clamping member and the second clamping member are conveniently installed and removed from the filter element; the first clamping member and the second clamping member clamp the filter holes of the filter element, so as to ensure that the first clamping member and the second clamping member are firmly fixed on the filter element; the position adjustment device can adjust the positions of the first clamping member and the second clamping member on the cross bar through a threaded connection, so that the first clamping member and the second clamping member can keep clamping the filter element; thus, the cross bar replaces the lifting rod to lift the filter element;

[0029] 2. The utility model is a loading and unloading device for a desander filter element. The base enables the lifting device to be placed on the maintenance port on the top of the desander, so that the maintenance port can support the lifting device. The output end of the lifting device is connected to the cross bar, so that the lifting device can drive the filter element to rise and fall;

[0030] 3. The utility model is a clamping device for a desander filter element. The device has a simple structure, low manufacturing cost, and is easy for one person to operate. It improves the efficiency and success rate of filter element removal and avoids the difficulty of filter element maintenance caused by the breakage of the lifting rod. The first clamping member and the second clamping member slide on the cross bar to facilitate installation and disassembly of the clamping device. The first clamping member and the second clamping member clamp the filter eye to ensure the firmness of the connection between the filter element and the clamping member, which has good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the cross-sectional structure of the filter cartridge body;

[0032] Figure 2 It is a structural schematic diagram of the filter element;

[0033] Figure 3 It is a structural schematic diagram of a clamping device for a desander filter element;

[0034] Figure 4 It is a schematic diagram of the structure of a holding member in one or more embodiments;

[0035] Figure 5 is a schematic cross-sectional structural diagram of a cross bar in one or more embodiments;

[0036] Figure 6 A schematic cross-sectional view of a cross bar in one or more embodiments

[0037] Figure 7 It is a structural schematic diagram of a clamping device for a desander filter element;

[0038] Figure 8 It is a partially enlarged schematic diagram of a clamping device for a desander filter element;

[0039] Fig. 9 It is a partially enlarged schematic diagram of a clamping device for a desander filter element.

[0040] Markings in the figure:

[0041] 1-cross bar, 2-holding member, 21-first holding member, 22-second holding member, 3-position adjustment device, 31-adjusting wheel, 4-sliding rod, 41-first rod body, 42-second rod body, 411-first adjusting screw rod, 421-second adjusting screw rod, 5-holding column, 6-sliding channel, 7-hydraulic push rod, 8-base, 9-rope, 10-force rod, 11-first limiting groove, 12-second limiting groove, 100-filter cartridge body, 101-filter element, 102-lifting rod, 103-filter hole, 104-sealing ring. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0043] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0044] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0045] In addition, the expressions “first”, “second”, “third”, etc., which appear 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.

[0046] In addition, in the description of the embodiments of the present invention, "several", "multiple" 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.

[0047] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0048] Example 1

[0049] like Figure 3-Figure 6 As shown, a clamping device for a desander filter element comprises a cross bar 1 and a clamping member 2.

[0050] A position adjustment device 3 is provided on the cross bar 1, and the clamping member 2 is slidably connected to the cross bar 1, and the clamping member 2 can slide along the axial direction of the cross bar 1; the clamping member 2 includes a first clamping component 21 and a second clamping component 22, and along the axial direction of the cross bar 1, the first clamping component 21 and the second clamping component 22 are relatively arranged; the first clamping component 21 and the second clamping component 22 are both limitedly connected to the position adjustment device 3, and the first clamping component 21 and the second clamping component 22 can be limitedly connected to the filter hole 103.

[0051] By respectively arranging the first clamping member and the second clamping member on both axial sides of the cross bar, the first clamping member and the second clamping member jointly clamp the filter element, so that the clamping device of the desander filter element can be clamped and fixed on the filter element; by arranging the first clamping member and the second clamping member to slide axially on the cross bar, it is convenient to install and remove the first clamping member and the second clamping member on the filter element; the first clamping member and the second clamping member clamp the filter holes of the filter element, so as to ensure that the first clamping member and the second clamping member are firmly fixed on the filter element; the position adjustment device can adjust the position of the first clamping member and the second clamping member on the cross bar through a threaded connection, so that the first clamping member and the second clamping member can keep clamping the filter element; thereby the cross bar replaces the lifting rod to lift the filter element.

[0052] In one or several embodiments, cylindrical sliding channels 6 are respectively provided at both ends of the cross bar 1, and the sliding channels 6 are extended along the axial direction of the cross bar 1. A cylindrical sliding rod 4 is provided on the clamping member 2, and the sliding rod 4 is adapted to be arranged in the sliding channel 6, so that the sliding rod 4 can slide along the axial direction of the cross bar 1; by changing the distance between the first clamping member 21 and the second clamping member 22, the first clamping member 21 and the second clamping member 22 can be quickly installed and disassembled on the filter element 101.

[0053] In an optional embodiment, three holding columns 5 adapted to the filter holes 103 are provided on the holding member 2, and the holding columns 5 located on different holding members 2 are arranged opposite to each other, so that the holding columns 5 located on different holding members 2 can be inserted into the filter holes 103 radially opposite to each other in the filter element 101; the holding columns 5 located on the same holding member 2 are arranged so that the intervals between adjacent holding columns 5 are equal, and multiple holding columns 5 are inserted into multiple filter holes 103 to improve the connection strength between the holding member 2 and the filter holes 103; the holding columns 5 are cylindrical and adapted to the filter holes 103.

[0054] In an optional embodiment, the holding member 2 is an arc-shaped plate, the holding column 5 is arranged on the concave side of the holding member 2, the arc-shaped plate is detachably connected to the sliding rod 4, and the detachable arc-shaped plate increases the force-bearing area of ​​the holding member 2 by fitting with the outer wall of the cylindrical filter element 101, thereby increasing the load-bearing capacity of the arc-shaped plate and making the cross bar 1 less likely to break.

[0055] In an optional embodiment, the holding column 5 is arranged on the convex side of the holding member 2, and the arc plate is fitted with the inner wall of the cylindrical filter element 101, thereby increasing the force-bearing area, increasing the force-bearing area of ​​the holding member 2, and making the cross bar 1 less likely to break.

[0056] In one or several embodiments, a through-groove is provided on the position adjustment device 3, an adjusting wheel 31 is provided in the through-groove, an adjusting port is opened on the cross bar 1, the adjusting port and the through-groove are communicated, the adjusting wheel 31 provided in the through-groove is threadedly connected to the slide bar 4 through the adjusting port, the adjusting wheel 31 is rotatably connected to the position adjustment device 3, and by rotating the adjusting wheel 31, the slide bar 4 and the cross bar 1 can be relatively displaced, thereby causing the slide bar 4 to extend or retract.

[0057] In an optional embodiment, the sliding rod 4 includes a first rod body 41 and a second rod body 42, the first rod body 41 is connected to the first clamping piece 21, and the second rod body 42 is connected to the second clamping piece 22. A first adjusting screw rod 411 is provided on the first rod body 41, and a second adjusting screw rod 421 is provided on the second rod body 42. The first adjusting screw rod 411 and the second adjusting screw rod 421 are both threadedly connected to the adjusting wheel 31. The first adjusting screw rod 411 and the second adjusting screw rod 421 are staggered. The first adjusting screw rod 411 is a positive thread and the second adjusting screw rod 411 is a negative thread. By rotating the adjusting wheel 31, the first rod body 41 and the second rod body 42 can be extended or retracted synchronously.

[0058] The clamping device for the desander filter element of the present embodiment improves the efficiency and success rate of removing the filter element 101, and avoids the difficulty in maintaining the filter element 101 due to the breakage of the lifting rod 102; the first clamping member 21 and the second clamping member 22 slide on the cross bar 1, which facilitates the installation and disassembly of the clamping device; the first clamping member 21 and the second clamping member 22 clamp the filter eye to ensure the firmness of the connection between the filter element 101 and the clamping member 2, making the filter element 101 easy to maintain.

[0059] Example 2

[0060] like Figure 7-Figure 9 A loading and unloading device for a desander filter element shown in the figure comprises a lifting device and a clamping device for a desander filter element as described in Example 1, wherein the lifting device is connected to the cross bar 1, and the lifting device is provided with a base 8, and the base 8 is used to abut against the maintenance port at the top of the desander.

[0061] In one or more embodiments, the lifting device includes a hydraulic push rod 7 and a rope 9 , one end of the rope 9 is connected to the cross bar 1 , and the other end of the rope 9 is connected to the output end of the hydraulic push rod 7 .

[0062] In an optional embodiment, a force applying rod 10 is provided at the output end of the hydraulic push rod 7, and the output end is connected to the middle part of the force applying rod 10. Two first limit grooves 11 are provided on the force applying rod 10, and two second limit grooves 12 are provided on the cross bar 1. The annular rope 9 is respectively abutted against the first limit groove 11 and the second limit groove 12; the projection of the first limit groove 11 in the vertical direction is located at the second limit groove 12.

[0063] Specifically, a through hole for the rope 9 to pass through is provided on the base 8 .

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device for a desander filter element, characterized in that: include A crossbar (1), wherein a position adjustment device (3) is provided on the crossbar (1); A clamping member (2), the clamping member (2) being slidably connected to the cross bar (1), and the clamping member (2) being capable of sliding along the axial direction of the cross bar (1); the clamping member (2) comprising a first clamping member (21) and a second clamping member (22), and the first clamping member (21) and the second clamping member (22) being arranged opposite to each other along the axial direction of the cross bar (1); the first clamping member (21) being threadedly connected to the position adjustment device (3), and the second clamping member (22) being threadedly connected to the position adjustment device (3), and both the first clamping member (21) and the second clamping member (22) being capable of passing through the filter hole (103).

2. A holding device for a desander filter element according to claim 1, characterized in that: Both ends of the crossbar (1) are provided with sliding channels (6), the clamping member (2) is provided with a sliding rod (4), the sliding rod (4) is adaptively connected to the sliding channel (6), and the position adjustment device (3) is threadedly connected to the sliding rod (4).

3. A holding device for a desander filter element according to claim 2, characterized in that: A plurality of holding columns (5) are arranged at intervals on the holding component (2), and the holding columns (5) are capable of passing through the filter holes (103).

4. A holding device for a desander filter element according to claim 3, characterized in that: The clamping member (2) is an arc-shaped plate, and the clamping column (5) is arranged on the concave side and / or the convex side of the clamping member (2).

5. A holding device for a desander filter element according to claim 2, characterized in that: The holding component (2) is detachably connected to the sliding rod (4).

6. A holding device for a desander filter element according to claim 2, characterized in that: The position adjustment device (3) is provided with an adjustment wheel (31), the adjustment wheel (31) is threadedly connected to the slide bar (4), and the adjustment wheel (31) is rotationally connected to the position adjustment device (3).

7. A holding device for a desander filter element according to claim 6, characterized in that: The sliding rod (4) comprises a first rod body (41) and a second rod body (42); the first rod body (41) is connected to the first clamping member (21); the second rod body (42) is connected to the second clamping member (22); the first rod body (41) is provided with a first adjusting screw rod (411); the second rod body (42) is provided with a second adjusting screw rod (421); the first adjusting screw rod (411) and the second adjusting screw rod (421) are both threadedly connected to the adjusting wheel (31).

8. A loading and unloading device for a desander filter element, characterized in that: The invention comprises a lifting device and a clamping device for a desander filter element according to any one of claims 1 to 7, wherein the lifting device is connected to the cross bar (1), and the lifting device is provided with a base (8), and the base (8) is used to abut against a maintenance port at the top of the desander.

9. A loading and unloading device for a desander filter element according to claim 8, characterized in that: The lifting device comprises a hydraulic push rod (7) and a rope (9), one end of the rope (9) being connected to the cross bar (1) and the other end being connected to the output end of the hydraulic push rod (7).

10. A loading and unloading device for a desander filter element according to claim 9, characterized in that: The output end of the hydraulic push rod (7) is provided with a force rod (10), the force rod (10) is arranged in a transverse direction, and at least one first limiting groove (11) is respectively arranged at both ends of the force rod (10), and at least one second limiting groove (12) is respectively arranged at both ends of the cross bar (1), and the first limiting groove (11) and the second limiting groove (12) are both used to clamp the rope (9).

Images