Experimental derrick for pressure testing of gas-tight detection tools

Abstract

The application provides an experimental derrick for pressure testing of a gas seal detection tool, and relates to the technical field of mechanical design. The experimental derrick for pressure testing of the gas seal detection tool comprises a support, a first operation table arranged on the support, a mounting row frame arranged on the side of the first operation table, and a plurality of oil casings arranged on the mounting row frame. The plurality of oil casings are arranged in one or more rows, a plurality of the oil casings are arranged in each row, and the diameters of the oil casings in each row gradually increase in a preset direction. The technical scheme can enable one experimental derrick to realize pressure experiments of detection tools with different sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical design, and particularly relates to an experimental derrick for pressure test of a gas seal detection tool. BACKGROUND

[0002] When pressure experiment of the gas seal detection tool is performed, the detection tool needs to be placed into the oil casing on the experimental derrick through a winch. The existing experimental derrick is only provided with one oil casing, so that it can only realize pressure experiment of one size detection tool. The experimental derrick cannot realize pressure experiment of multiple size detection tools. Therefore, how to enable one experimental derrick to realize pressure experiment of detection tools of different sizes is a technical problem to be solved by those skilled in the art. SUMMARY

[0003] The experimental derrick for pressure test of the gas seal detection tool can realize pressure experiment of detection tools of different sizes.

[0004] To solve the above technical problem, the experimental derrick for pressure test of the gas seal detection tool is provided.

[0005] The first aspect of the present application provides an experimental derrick for pressure test of a gas seal detection tool, comprising:

[0006] a support;

[0007] a layer of operation tables, arranged on the support;

[0008] a mounting rack, arranged on the side of the layer of operation tables;

[0009] a plurality of oil casings, arranged on the mounting rack, the plurality of oil casings are arranged in one or more rows, a plurality of oil casings are arranged in each row, and the diameters of the oil casings in each row gradually increase along a preset direction.

[0010] In some modified embodiments of the first aspect of the present application, the oil casing further comprises opposite first and second ends, and the first and second ends are respectively located on the two sides of the layer of operation tables.

[0011] Specifically, the first end is located on the side of the layer of operation tables away from the ground, and the first ends of the plurality of oil casings are located on the same plane.

[0012] Specifically, the plurality of oil casings are arranged in one row.

[0013] The mounting rack comprises a first support and a plurality of first fixing members, the plurality of first fixing members are sequentially arranged along the first support, the first fixing member and the first support enclose a first containing space, and the oil casing is arranged in the first containing space.

[0014] Specifically, the support frame comprises:

[0015] a first fixing part comprising a plurality of first fixing rods, the plurality of first fixing rods surrounding a first closed figure;

[0016] a second fixing part comprising a plurality of second fixing rods, the plurality of second fixing rods surrounding a second closed figure;

[0017] a plurality of support rods, one end of the plurality of support rods being connected to the first fixing part and the other end being connected to the second fixing part, wherein a normal projection of the first closed figure on a plane where the second closed figure is located is completely placed in the second closed figure;

[0018] a plurality of reinforcing rods, both ends of the reinforcing rods being respectively connected to two adjacent support rods;

[0019] wherein the one layer of operation platforms and the plurality of oil casings are arranged between the first fixing part and the second fixing part.

[0020] Specifically, the second end of the plurality of oil casings and the second fixing part have a preset interval.

[0021] Specifically, the support frame further comprises:

[0022] a first pulley, the first fixing part further comprising a first mounting member connected to at least one first fixing rod, the first pulley being arranged on the first mounting member.

[0023] Specifically, the support frame further comprises:

[0024] a second pulley, the second fixing part further comprising a second mounting member connected to at least one second fixing rod, the second pulley being arranged on the second mounting member.

[0025] Specifically, the support frame further comprises:

[0026] a second layer of operation platforms arranged on the support frame, and the second layer of operation platforms being located at an end of the one layer of operation platforms away from the second fixing part.

[0027] Specifically, the support frame further comprises:

[0028] a climbing ladder, one end of the climbing ladder being connected to the second layer of operation platforms;

[0029] a handrail arranged on both sides of the climbing ladder.

[0030] A first guardrail, two ends of the first guardrail are connected to the handrails on both sides of the climbing ladder respectively, a climbing space is formed between the first guardrail and the climbing ladder, and the first guardrail is arranged between the first operation platform and the second operation platform;

[0031] A second guardrail, the second guardrail is arranged along part of the edge of the first operation platform;

[0032] A third guardrail, the third guardrail is arranged along part of the edge of the second operation platform.

[0033] Compared with the prior art, the experimental derrick for pressure test of gas seal detection tools provided in the first aspect of the present application can meet pressure experiments of detection tools with different sizes through the arrangement of oil casings with different diameters. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and other objects, features and advantages of the exemplary embodiments of the present application will be readily understood through reading the detailed description of the exemplary embodiments of the present application below, with reference to the attached drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation, in which the same or corresponding elements are referred to with the same or corresponding reference numerals, in which:

[0035] Figure 1 A structural schematic diagram of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0036] Figure 2 Another structural schematic diagram of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0037] Figure 3 A structural schematic diagram of the first operation platform of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0038] Figure 4 A structural schematic diagram of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0039] Figure 5 A structural schematic diagram of the mounting rack of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0040] Figure 6 Another structural schematic diagram of the mounting rack of the experimental derrick for pressure test of gas seal detection tools provided in the embodiments of the present application is schematically shown;

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] The first fixed rod 11, the second fixed rod 12, the support rod 13, the reinforcing rod 14, the first bearing rod 15, the second bearing rod 16, the first operation platform 2, the oil jacket pipe 3, the first end 31, the second end 32, the first pulley 4, the second pulley 5, the second operation platform 6, the climbing ladder 7, the first guardrail 81, the second guardrail 82, the third guardrail 83, the mounting row frame 9, the first support 91, the first fixed part 92, the second support 93, the second fixed part 94, and the limiting part 95. DETAILED DESCRIPTION

[0043] Exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the common meanings understood by those skilled in the art to which the present application belongs.

[0045] The first aspect of the present application provides an experimental derrick for pressure testing of a gas seal detection tool, as shown in the drawings, the experimental derrick for pressure testing of a gas seal detection tool comprises a support, a first operation platform 2 arranged on the support, a mounting row frame 9 arranged on the side of the first operation platform 2, and a plurality of oil jacket pipes 3 arranged on the mounting row frame 9. Figures 1 to 5 The plurality of oil jacket pipes 3 are arranged in one or more rows, a plurality of oil jacket pipes 3 are arranged in each row, and the diameters of the oil jacket pipes 3 in each row increase in order along a predetermined direction.

[0046] The upper part of the support is usually provided with a pulley, and the detection tool is arranged at one end of the steel wire rope. The steel wire rope passes through the pulley, so that the detection tool is hung at one end of the oil jacket pipe 3. In the present application, an operating platform 2 is arranged on the support, and the worker can stand on the operating platform 2 to work. The operating platform 2 can be a support plate, and can also support a net, and the net is laid with a diamond-shaped net. The installation rack 9 can be used to install the oil jacket pipe 3, and the operating platform 2 includes multiple sides, and the installation rack 9 can be arranged on one side of the operating platform 2. A plurality of oil jacket pipes 3 are arranged on the installation rack 9, and the plurality of oil jacket pipes 3 can be arranged in an array. For example, the number of oil jacket pipes 3 can be 9, and the 9 oil jacket pipes 3 can be arranged in 3 rows, and each row has 3 oil jacket pipes 3. Along the preset direction, the diameters of the oil jacket pipes 3 in each row increase in turn. When the pressure experiment of the detection tool is carried out, the worker can stand on the operating platform 2 and put the detection tool into the oil jacket pipe 3 corresponding in size to the detection tool. The diameters of the plurality of oil jacket pipes 3 are arranged in turn along the preset direction, so that the worker can easily find the oil jacket pipe 3 corresponding in size to the detection tool. The experimental derrick provided by the present application is provided with a plurality of oil jacket pipes 3 with different diameters, so that the pressure experiments of a plurality of detection tools with different sizes can be carried out.

[0047] In some modified embodiments of the first aspect of the present application, as shown in Figure 2 The oil jacket pipe 3 further includes opposite first and second ends 31 and 32, and the first and second ends 31 and 32 are respectively located on two sides of the operating platform 2.

[0048] When the experimental derrick provided by the present application is used, the support can be fixed to the ground, and the first and second ends 31 and 32 are respectively located on two sides of the operating platform 2. Specifically, the first end 31 can be located on the side of the operating platform 2 away from the ground, and at this time, the distance between the first end 31 and the ground is greater than the distance between the operating platform 2 and the ground, that is, the first end 31 is higher than the position of the operating platform 2, so as to facilitate the worker to put the detection tool into the oil jacket pipe 3. Specifically, the distance between the first end 31 and the operating platform 2 can be 600 mm, which is convenient for the worker to operate.

[0049] Specifically, the first end 31 is located on the side of the operating platform 2 away from the ground, and the first ends 31 of the plurality of oil jacket pipes 3 are located on the same plane.

[0050] The first ends 31 are located on the same plane, which can further facilitate the worker to put the detection tool into the oil jacket pipe 3.

[0051] Specifically, the plurality of oil casings 3 are arranged along a row; as Figure 5 As shown, the mounting rack 9 comprises a first support 91 and a plurality of first fixing members 92, the plurality of first fixing members 92 are arranged along the first support 91 in sequence, and the first fixing member 92 and the first support 91 enclose a first containing space, and the oil casing 3 is arranged in the first containing space.

[0052] Among them, the plurality of oil casings 3 are arranged in a row, and the first support 91 of the mounting rack 9 can be in a strip shape, which is fixed to one side of a layer of operation table 2, and the plurality of first fixing members 92 are arranged along the length direction of the first support 91 in sequence. Among them, the first fixing member 92 can enclose a first containing space with the mounting rack 9, specifically, the first fixing member 92 can include opposite third and fourth ends, the first fixing member 92 can be bent into a U shape, and the third and fourth ends can be provided with threads. Correspondingly, the first support 91 is provided with a mounting through hole, and after the third and fourth ends are installed into the mounting through hole, nuts can be fixed on the third and fourth ends to achieve the fixation of the first fixing member 92. The plurality of first fixing members 92 are arranged in a row, which is convenient for workers to install and disassemble. Among them, the plurality of oil casings 3 are arranged along a first straight line in sequence, and the distance between the center of the first closed figure and the first straight line in the horizontal direction is a first distance, and the maximum value of the first distance is 300mm.

[0053] In addition, as Figure 5 As shown, the mounting rack 9 can also include a second support 93 and a plurality of second fixing members 94, the second support 93 is arranged close to the second end 32 of the oil casing 3, the second support 93 is in a strip shape, and the plurality of second fixing members 94 are arranged along the length direction of the second support 93 in sequence. The second fixing member 94 can enclose a second containing space with the second support 93, and the oil casing 3 can be located therein. By arranging the first fixing member 92 and the second fixing member 94 to fix the two ends of the oil casing 3, the reliability of the fixation of the oil casing 3 can be increased. Among them, the first support 91 and the second support 93 can be fixedly connected through a connecting rod, or the first support 91 and the second support 93 can be connected to a bracket. In addition, as Figure 6 As shown, a limiting member 95 can also be arranged on the first support 91 and / or the second support 93, and a limiting space is formed on the limiting member 95, and the oil casing 3 can be located in the limiting space, so as to avoid the inclination of the oil casing 3.

[0054] Specifically, as Figure 1 And Figure 2As shown, the support frame comprises: a first fixing part comprising a plurality of first fixing rods 11, the plurality of first fixing rods 11 surrounding a first closed figure; a second fixing part comprising a plurality of second fixing rods 12, the plurality of second fixing rods 12 surrounding a second closed figure; a plurality of support rods 13, one end of the plurality of support rods 13 being connected to the first fixing part and the other end being connected to the second fixing part, wherein the orthographic projection of the first closed figure on the plane where the second closed figure is located is completely placed in the second closed figure; a plurality of reinforcing rods 14, both ends of the reinforcing rod 14 being respectively connected to two adjacent support rods 13; wherein the one layer of operation table 2 and the plurality of oil casings 3 are arranged between the first fixing part and the second fixing part.

[0055] The first fixed part and the second fixed part are respectively located at two ends of the support, and the second fixed part can be fixed to the ground. Specifically, the second fixed rod 12 can be fixed by a U-shaped clip. Specifically, ground anchor bolts can be provided on the ground, and the second fixed rod 12 is located in the U-shaped space of the U-shaped clip. The two ends of the U-shaped clip can be connected with the ground anchor bolts of the ground. The number of U-shaped clips can be multiple, and the multiple U-shaped clips are uniformly arranged along the multiple second fixed rods 12. The distance between adjacent two U-shaped clips can be 800 mm. Specifically, the ground anchor bolt can be an expansion bolt. The second fixed part can include multiple second fixed rods 12, and the second closed figure surrounded by the multiple second fixed rods 12 can be a square. The first fixed part is located at the top of the support, and the first fixed part includes multiple first fixed rods 11. The first closed figure surrounded by the multiple first fixed rods 11 can be a square. The plane on which the second closed figure is located can be the ground. The orthographic projection of the first closed figure on the ground is completely located in the second closed figure, and there is a gap between the edge of the orthographic projection of the first closed figure and the edge of the second closed figure, that is, the area of the first closed figure is smaller than the area of the second closed figure. Therefore, the top end of the support provided in the present application is smaller than the size of the bottom end, which can increase the stability of the support and avoid the support from falling. One end of the multiple support rods 13 is connected to the first fixed rod 11 on the first fixed part, and the other end is connected to the second fixed rod 12 of the second fixed part. One end of the support rod 13 can be connected to the connection position of adjacent two first fixed rods 11, and the other end can be connected to the connection position of adjacent two second fixed rods 12. In the case that the first closed figure and the second closed figure are both squares, the number of support rods 13 can be four. In addition, in order to increase the stability of the support and the reliability of the connection, the support is also provided with a reinforcing rod 14. The two ends of the reinforcing rod 14 are respectively connected to adjacent two support rods 13. Multiple reinforcing rods 14 can be arranged between adjacent two support rods 13, and the reinforcing rods 14 located between adjacent two support rods 13 can not be parallel. In the case that the support rod 13 is four, the four support rods 13 include four pairs of adjacent support rods 13. At least one pair of adjacent support rods 13 can not be provided with a reinforcing rib. The first fixed rod 11, the second fixed rod 12, the support rod 13 and the reinforcing rod 14 can all be hollow tubes. One operation table 2 can be located between the first fixed part and the second fixed part. Specifically, as shown in Figure 3 The support also includes multiple first bearing rods 15. One first bearing rod 15 is arranged between adjacent two support rods 13. The multiple first bearing rods 15 are located in the same plane, and the multiple first bearing rods 15 can surround a first area. One operation table 2 is connected to the first bearing rod 15, and the one operation table 2 only covers part of the first area.

[0056] Specifically, as shown in Figure 2As shown, the second end 32 of the plurality of oil casings 3 has a preset interval with the second fixed part.

[0057] As shown, the second end 32 of the plurality of oil casings 3 has a preset interval with the second fixed part.

[0058] Specifically, as shown in Figure 1 and Figure 2 As shown, the experimental derrick for pressure testing of the gas seal detection tool further comprises a first pulley 4, and the first fixed part further comprises a first mounting member connected to at least one of the first fixed rods 11, and the first pulley 4 is arranged on the first mounting member.

[0059] As shown, the experimental derrick for pressure testing of the gas seal detection tool further comprises a first pulley 4, and the first fixed part further comprises a first mounting member connected to at least one of the first fixed rods 11, and the first pulley 4 is arranged on the first mounting member.

[0060] As shown, the experimental derrick for pressure testing of the gas seal detection tool further comprises a first pulley 4, and the first fixed part further comprises a first mounting member connected to at least one of the first fixed rods 11, and the first pulley 4 is arranged on the first mounting member. Figure 1 and Figure 2 As shown, the experimental derrick for pressure testing of the gas seal detection tool further comprises a first pulley 4, and the first fixed part further comprises a first mounting member connected to at least one of the first fixed rods 11, and the first pulley 4 is arranged on the first mounting member.

[0061] The second pulley 5 is arranged at the bottom of the support, and the second pulley 5 can be located at the center of the second closed figure. The steel wire provided with the detection tool can pass through the second pulley 5 first and then pass through the first pulley 4. Specifically, the second pulley 5 can change the force direction of the steel wire. Specifically, in the case of only arranging the first pulley 4, the steel wire is provided with a first part and a second part. The first part is connected with the detection tool at one end away from the second part. The connection between the first part and the second part is in contact with the first pulley 4. When the detection tool is lowered into the oil casing 3, the first part can be basically consistent with the vertical direction. The second part needs to form a certain angle with the vertical direction, that is, the second part needs to be inclined. Since the support is provided with the reinforcing rod 14, the supporting rod 13 and the like, the second part can interfere with the support, and then the support can hinder the lowering of the detection tool. In the embodiment, the second pulley 5 is arranged at the bottom of the support. The steel wire is divided into three sections, and further includes a third part. At this time, the connection between the second part and the third part is in contact with the ground pulley. The connection between the first part and the second part is in contact with the first pulley 4. The first part can be basically consistent with the vertical direction. The extension direction of the second part can be basically the same as the vertical direction, that is, the second part can be the same as the vertical direction, and the two can form a certain angle. At this time, when the detection tool is lowered into the oil casing 3, the third part can be forced. The third part can be basically parallel to the ground, or can be adjusted according to the force tool. Therefore, the second pulley 5 can change the force direction. The extension direction of the second part can always be basically consistent with the vertical direction. Since the second part does not need to be inclined, the second part can avoid contacting the support.

[0062] Specifically, as shown in Figure 1 and Figure 2 , the experimental derrick for pressure testing of the gas-tight detection tool further comprises a second operating platform 6 arranged on the support, and the second operating platform 6 is located at one end of the first operating platform 2 away from the second fixed part.

[0063] The second operating platform can be located between the first pulley 4 and the first operating platform 2. The user can stand on the second operating platform 6 to operate the first pulley 4. Specifically, as shown in Figure 4As shown, the support frame further comprises a plurality of second bearing rods 16, one second bearing rod 16 is arranged between two adjacent support rods 13, the plurality of second bearing rods 16 are located in the same plane, and the plurality of second bearing rods 16 can enclose a second area. The second operation platform is connected to the first bearing rod 15, and the first operation platform is arranged only in part of the second area. The orthographic projection of the first pulley 4 and the second pulley 5 on the first operation platform 2 is not located in the area where the first operation platform 2 is located, and the orthographic projection of the first pulley 4 and the second pulley 5 on the second operation platform 6 is located in the area where the second operation platform 6 is located, thereby enabling the first operation platform 2 and the second operation platform 6 to avoid the steel wire rope.

[0064] Specifically, as shown in Figure 1 and Figure 2 The experimental derrick for pressure testing of the gas-tight detection tool further comprises a climbing ladder 7, one end of the climbing ladder 7 being connected to the second operation platform 6; handrails arranged on both sides of the climbing ladder 7; a first guardrail 81, both ends of the first guardrail 81 being connected to the handrails arranged on both sides of the climbing ladder 7, a climbing space being formed between the first guardrail 81 and the climbing ladder 7, and the first guardrail 81 being arranged between the first operation platform 2 and the second operation platform 6. A second guardrail 82 is arranged along part of the edge of the first operation platform 2, and a third guardrail 83 is arranged along part of the edge of the second operation platform 6.

[0065] The distance between the second operation platform 6 and the ground is large, so the user can conveniently climb by arranging the climbing ladder 7. The extension direction of the climbing ladder 7 can be the same as the extension direction of the support rod 13, or a preset included angle can be formed between the climbing ladder 7 and the support rod 13. The end of the climbing ladder 7 away from the second operation platform 6 can abut against the bottom surface. The handrails arranged on both sides of the climbing ladder 7 can facilitate the staff to climb.

[0066] In addition, the first guardrail 81 is arranged on the climbing ladder 7, the first guardrail 81 can be arc-shaped, one end of the first guardrail 81 being connected to the handrail on one side of the climbing ladder 7, and the other end of the first guardrail 81 being connected to the handrail on the other side of the climbing ladder 7, so as to form a climbing space between the first guardrail 81 and the climbing ladder 7. The first guardrail 81 can be arranged only between the first operation platform 2 and the second operation platform 6, and when the staff climbs to the position of the first operation platform 2, the staff can step onto the first operation platform 2. The first guardrail 81 can comprise a plurality of guardrails, and the guardrails are arc-shaped. The first guardrail 81 can be arranged at the end of the climbing ladder 7 away from the first operation platform 2. The handrails of the climbing ladder 7 can extend to the end of the second operation platform 6 away from the first operation platform 2, and part of the guardrails in the first guardrail 81 can be arranged at the end of the second operation platform 6 away from the first operation platform 2.

[0067] The edges of the first operation platform 2 are provided with the second guardrails 82, and some edges of the first operation platform 2 are not provided with the second guardrails 82, so that the second guardrails 82 form a first entrance on the first operation platform 2, and the workers can enter the safety space surrounded by the second guardrails 82 and stand on the first operation platform 2 through the first entrance. The first operation platform 2 includes a plurality of edges, and the first edges are not provided with the second guardrails 82, so that the first entrance is arranged on the first edges, and the first entrance is located on two sides of the climbing ladder 7 adjacent to the support. The edges of the second operation platform 6 are provided with the third guardrails 83, and some edges of the second operation platform 6 are not provided with the third guardrails 83, so that the third guardrails 83 form a second entrance on the second operation platform 6, and the workers can enter the safety space surrounded by the third guardrails 83 and stand on the second operation platform 6 through the second entrance. The second operation platform 6 includes a plurality of edges, and the second edges are not provided with the third guardrails 83, and one end of the climbing ladder 7 can be connected to the second edges.

[0068] In addition, the connection between the two adjacent first fixed rods 11 can be provided with a wind rope hanging ring, one end of the wind rope is connected to the wind rope hanging ring, and the other end is fixed to the ground. The support can be further fixed by the wind rope, and the reliability is increased. When the first closed figure is a square, four wind rope hanging rings can be arranged. In addition, a nameplate can also be arranged on the support, and the nameplate has prompt information, and the prompt information can include operation guide and the like. The nameplate can also be arranged on the guardrails of the first operation platform 2.

[0069] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An experimental derrick for pressure testing of a gas tightness detection tool, characterized in that, The utility model relates to an experimental derrick for pressure test of gas seal detection tool, which comprises a support, an operation platform arranged on the support, a mounting rack arranged on the side of the operation platform, and a plurality of oil casings arranged on the mounting rack. The utility model discloses a plurality of oil casings arranged on the mounting rack, and the plurality of oil casings are arranged in one or more rows. The diameter of each row of oil casings gradually increases in a preset direction, so that the detection tool can be placed in the oil casing corresponding to the size of the detection tool, thereby meeting the pressure test of detection tools of multiple sizes. The mounting rack comprises a first support and a plurality of first fixing members. The first support is in the shape of a strip and is fixed to one side of the operation platform. The first fixing members are sequentially arranged along the first support, and the first fixing members and the first support enclose a first containing space. The oil casings are arranged in the first containing space. The mounting rack further comprises a second support and a plurality of second fixing members. The second support is arranged close to the second end of the oil casing. The second support is in the shape of a strip. The second fixing members are sequentially arranged along the length direction of the second support. The second fixing members and the second support enclose a second containing space. The oil casings are arranged in the second containing space. The first and second fixing members can fix the two ends of the oil casing, thereby increasing the reliability of the fixation of the oil casing. The first support and the second support are provided with limiting members. The limiting members form a limiting space to prevent the oil casing from tilting.

2. The experimental derrick for pressure test of gas seal detection tool according to claim 1, wherein the oil casing further comprises opposite first and second ends, and the first and second ends are respectively located on two sides of the operation platform.

3. The experimental derrick for pressure test of gas seal detection tool according to claim 2, wherein the first end is located on the side of the operation platform away from the ground, and the first ends of the plurality of oil casings are located on the same plane.

4. The experimental derrick for pressure test of gas seal detection tool according to claim 3, wherein the support comprises a first fixing part, a second fixing part, a plurality of support rods, and a plurality of reinforcing rods. The first fixing part comprises a plurality of first fixing rods, and the first fixing rods enclose a first closed figure. The second fixing part comprises a plurality of second fixing rods, and the second fixing rods enclose a second closed figure.

6. The test rig of claim 4, wherein, One end of each of the support rods is connected to the first fixing part, and the other end is connected to the second fixing part. The first closed figure is completely located in the second closed figure in the orthogonal projection on the plane of the second closed figure. The two ends of each of the reinforcing rods are respectively connected to two adjacent support rods. The operation platform and the plurality of oil casings are arranged between the first fixing part and the second fixing part.

5. The experimental derrick for pressure test of gas seal detection tool according to claim 4, wherein the second end of each of the plurality of oil casings and the second fixing part have a preset spacing. The utility model further comprises a plurality of oil casings arranged on the mounting rack. A first pulley, the first fixed part further comprises a first mounting member connected to at least one of the first fixed rods, and the first pulley is arranged on the first mounting member.

7. The test rig of claim 6, wherein, Further comprising: A second pulley, the second fixed part further comprises a second mounting member connected to at least one of the second fixed rods, and the second pulley is arranged on the second mounting member.

8. The test rig of claim 4, wherein, Further comprising: A two-layer operating platform arranged on the support, and the two-layer operating platform is located at an end of the one-layer operating platform away from the second fixed part.

9. The test rig of claim 8, wherein, Further comprising: A climbing ladder, one end of the climbing ladder is connected to the two-layer operating platform; A handrail arranged on both sides of the climbing ladder; A first guardrail, both ends of the first guardrail are respectively connected to the handrails located on both sides of the climbing ladder, and a climbing space is formed between the first guardrail and the climbing ladder, and the first guardrail is arranged between the one-layer operating platform and the two-layer operating platform; A second guardrail arranged along part of the edge of the one-layer operating platform; A third guardrail arranged along part of the edge of the two-layer operating platform.

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