Buried oil and gas pipeline detection device

Abstract

The utility model relates to the field of oil gas detection, and discloses a buried oil gas pipeline detection device which comprises a base, the inner wall of the base is fixedly connected with an out-of-ground pipe, the inner wall of the base is fixedly connected with a left connecting pipe, the inner wall of the base is fixedly connected with a right connecting pipe, and the interior and the front side of the base are jointly provided with a sampling mechanism. The sampling mechanism comprises a mounting groove, the mounting groove is formed in the base, a motor is fixedly connected to the inner wall of the mounting groove, and an output shaft of the motor penetrates through the inner wall of the base and is fixedly connected with a three-way pipe. According to the utility model, through the arrangement of the sampling mechanism, when a substance in a pipeline needs to be sampled and detected, the substance can be well sampled through the sampling pipe, the inlet of the sampling pipe is closed after the sampling is completed, and the sample enters the sampling pipe in a horizontal state, so that the sediment is not easy to leak in the sampling process; and the sampling quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas detection field especially, relate to a buried oil and gas pipeline detection device. BACKGROUND

[0002] Buried oil and gas pipeline is the pipeline that is buried in the soil after strict anticorrosion treatment, and is used for the key facility that oil and gas is safely and efficiently transported from the production place to the consumption place.This kind of pipeline is usually made of high-strength steel material, polyethylene, polypropylene and other materials, has good pressure resistance, corrosion resistance and longer service life, and is an important component in oil and gas storage and transportation engineering.

[0003] At present, along with the growth of buried oil and gas pipeline use time, its bottom is prone to accumulate the impurities generated in the transportation process, and along with the lapse of time, the impurities in the buried oil and gas pipeline are prone to deterioration, resulting in the increase of its corrosion, and when the impurities after the increase of corrosion are long-term in the buried oil and gas pipeline, the inner wall of the buried oil and gas pipeline is prone to be corroded, thereby damage occurs.

[0004] In order to ensure the quality of oil and natural gas transported in the buried oil and gas pipeline, it is often periodically detected, but in the process of detection, since the buried oil and gas pipeline is in the ground, when the transported oil and natural gas is sampled by the upward adsorption mode, the solid impurities in the buried oil and gas pipeline are not easy to be adsorbed and are often difficult to collect, so as to cause the sampling result to have error, and therefore a buried oil and gas pipeline detection device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a buried oil and gas pipeline detection device, which aims at improving the problem that in the process of sampling and detecting the transported product in the buried oil and gas pipeline, the solid impurities not easy to be adsorbed are difficult to collect, resulting in error of the sampling result.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a buried oil and gas pipeline detection device, including the base, the inner wall fixedly connected with the ground pipe of base, the inner wall fixedly connected with the left connecting pipe of base, the inner wall fixedly connected with the right connecting pipe of base, the inside of base and the front side are provided with sampling mechanism in common, the sampling mechanism includes the mounting groove, the mounting groove is established in the inside of base, the inner wall fixedly connected with motor of mounting groove, the output shaft of motor penetrates the inner wall of base and is fixedly connected with the tee pipe, the outer wall fixedly connected with the stopper no.

[0007] As a further description of the above technical scheme:

[0008] The closing assembly includes a push plate, the outer wall of the push plate is connected with the inner wall of the material taking pipe, the inner wall of the material taking pipe is provided with a moving groove, the inner wall of the moving groove is slidably connected with a moving strip, the bottom end of the moving strip is elastically connected with the inner wall of the moving groove through a spring, the top end of the moving strip is fixedly connected with a control rope, and the end of the control rope away from the moving strip is fixedly connected with the outer wall of the rotating rod.

[0009] As a further description of the above technical scheme:

[0010] The fixing assembly includes a mounting block, the mounting block is fixedly connected with the bottom end of the material taking pipe, the top end of the positioning ring is provided with a slot, the inner wall of the mounting block is slidably connected with a clamping block, the outer wall of the clamping block is elastically connected with the inner wall of the mounting block through a spring, the outer wall of the clamping block is fixedly connected with a pulling rope, and the inner wall of the positioning ring on the inner side of the slot is provided with a clamping groove.

[0011] As a further description of the above technical scheme:

[0012] The length of the right side part of the tee pipe is consistent with the length of the upper side part, the length of the left side part of the tee pipe is shorter than the length of the right side part, and the outer sides of the tee pipe are all provided in an arc shape.

[0013] As a further description of the above technical scheme:

[0014] The shape of the stopper no. 1 is a quarter circle, and the outer wall of the stopper no. 1 is in the same arc plane with the outer walls of the right side and the upper side part of the tee pipe.

[0015] As a further description of the above technical scheme:

[0016] The shape of the second block is semicircle, and the outer wall of the second block is in the same arc plane with the left side part outer wall of the tee pipe.

[0017] As a further description of the above technical solutions:

[0018] The outer wall of the taking pipe is provided with a protrusion, and the upper area of the tee pipe and the inner wall of the outlet pipe are provided with a groove with a shape matching the shape of the taking pipe.

[0019] As a further description of the above technical solutions:

[0020] The shape of the clamping block is a right-angle trapezoid, and the inclined surface of the clamping block is arranged at the bottom end close to the middle side of the taking pipe.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the motor, the tee pipe, the first block, the positioning ring, the taking pipe, the rotating rod, the blocking ball, the second block, the push plate, the moving groove, the moving strip, the first spring and the control rope are arranged, so that when the substance in the pipeline needs to be sampled and detected, the sampling pipe can be used to sample the substance, the inlet of the sampling pipe is closed after sampling, the sample enters the sampling pipe in a horizontal state, the sediment is not easily missed in the sampling process, and the sampling quality is ensured.

[0023] 2. In the utility model, the mounting block, the slot, the clamping block, the second spring, the pull rope and the clamping groove are arranged, so that the taking pipe can be kept in a fixed state with the tee pipe during the taking process, and the taking pipe can be separated from the tee pipe and the positioning ring and then moved upward after the taking is completed, so that the stability of the taking pipe during the taking process is ensured. ACCURATE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall structure in the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling mechanism in the utility model;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the sampling mechanism in the utility model; Figure 4 It is a schematic diagram of the three-dimensional structure of the sampling mechanism in the utility model;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the sampling mechanism in the utility model;Figure 4 A part of the enlarged schematic view of the stereoscopic structure in the middle;

[0030] Figure 7 A part of the cross-sectional view of the internal structure of the sampling mechanism in the utility model;

[0031] Figure 8 A part of the cross-sectional view of the internal structure of the sampling mechanism in the utility model; Figure 7 A part of the enlarged schematic view of the stereoscopic structure in the middle;

[0032] Legend:

[0033] 1, base; 2, ground pipe; 3, right connecting pipe; 4, sampling mechanism; 5, left connecting pipe; 41, installation groove; 42, motor; 43, tee pipe; 44, block one; 45, positioning ring; 46, material taking pipe; 47, rotating rod; 48, blocking ball; 49, block two; 490, closing assembly; 410, fixing assembly; 491, push plate; 492, moving groove; 493, moving strip; 494, spring one; 495, control rope; 411, mounting block; 412, insertion slot; 413, clamping block; 414, spring two; 415, pull rope; 416, clamping groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] With reference to Figure 1 With reference to Figure 2 The utility model provides an embodiment: a buried oil and gas pipeline detection device, including base 1, the inner wall of base 1 is fixedly connected with ground pipe 2, the upper end of ground pipe 2 is above ground, the inner wall of base 1 is fixedly connected with left connecting pipe 5, the left side of left connecting pipe 5 is connected with buried oil and gas pipeline through flange, the inner wall of base 1 is fixedly connected with right connecting pipe 3, the right end of right connecting pipe 3 is connected with buried oil and gas pipeline through flange.

[0036] With reference to Figure 1 With reference to Figure 3A sampling mechanism 4 is provided both inside and on the front side of the base 1. The sampling mechanism 4 includes a mounting groove 41, which is located inside the base 1. A motor 42 is fixedly connected to the inner wall of the mounting groove 41. The output shaft of the motor 42 passes through the inner wall of the base 1 and is fixedly connected to a three-way pipe 43. The motor 42 enables the three-way pipe 43 to rotate. The right side of the three-way pipe 43 is the same length as the upper side, while the left side is shorter than the right side. The outer sides of the three-way pipe 43 are all arc-shaped. A stop block 44 is fixedly connected to the outer wall of the three-way pipe 43. The shape of the stop block 44 is a quarter circle, and the outer wall of the stop block 44 is in the same arc plane as the outer wall of the right and upper part of the tee pipe 43. By setting the stop block 44, it is ensured that when the tee pipe 43 is rotated, the stop block 44 can temporarily block the right connecting pipe 3, thereby preventing natural gas or gasoline leakage. The bottom end of the tee pipe 43 is fixedly connected to the stop block 49. The shape of the stop block 49 is a semi circle, and the outer wall of the stop block 49 is in the same arc plane as the outer wall of the left part of the tee pipe 43. By setting the stop block 49, it is ensured that the left connecting pipe 5 can be blocked during the rotation of the tee pipe 43.

[0037] Reference Figure 4 , Figure 5 and Figure 7 A positioning ring 45 is fixedly connected to the inner wall of the three-way pipe 43. The positioning ring 45 is annular in shape, and a high-filtration membrane that allows air to pass through but not natural gas is provided on the inner side of the positioning ring 45. A feed pipe 46 is provided above the positioning ring 45. A protrusion is provided on the outer wall of the feed pipe 46. A groove with a shape that fits the feed pipe 46 is opened in the upper area of ​​the three-way pipe 43 and the inner wall of the outlet pipe 2. The protrusion of the feed pipe 46 is located at the left end. An inwardly inclined slope is provided on the upper inner side of the feed pipe 46. A rotating rod 47 is rotatably connected to the inner wall of the feed pipe 46. The rotating rod 47 is cylindrical in shape. A stop ball 48 is fixedly connected to the outer wall of the rotating rod 47. The stop ball 48 is hemispherical in shape.

[0038] Reference Figure 4 - Figure 6The material receiving tube 46 is internally equipped with a closing assembly 490, which includes a push plate 491. The push plate 491 is cylindrical, and its outer wall is in contact with the inner wall of the material receiving tube 46. The outer wall of the push plate 491 is piston-connected to the inner wall of the material receiving tube 46. A moving groove 492 is formed on the inner wall of the material receiving tube 46. A moving strip 493 is slidably connected to the inner wall of the moving groove 492. The moving strip 493 is L-shaped, and a protrusion is provided on the upper surface of one end of the moving strip 493 near the middle of the material receiving tube 46. The bottom end of the moving bar 493 is elastically connected to the inner wall of the moving groove 492 by a spring 494. One end of the spring 494 is fixedly connected to the bottom end of the moving bar 493, and the other end of the spring 494 is fixedly connected to the inner wall of the moving groove 492. A control rope 495 is fixedly connected to the top end of the moving bar 493. The control rope 495 is non-elastic, and its initial position is set at a distance of 90 degrees from the bottom of the rotating rod 47. The end of the control rope 495 away from the moving bar 493 is fixedly connected to the outer wall of the rotating rod 47.

[0039] Reference Figure 7 and Figure 8 The positioning ring 45 and the material picking tube 46 are connected by a fixing component 410. The fixing component 410 includes a mounting block 411, which is a cuboid with a groove on its inner wall. The mounting block 411 is fixedly connected to the bottom end of the material picking tube 46. The top end of the positioning ring 45 has a slot 412, which is a cuboid groove that fits the shape of the mounting block 411. A locking block 413 is slidably connected to the inner wall of the mounting block 411. The locking block 413 is a right trapezoid, and its inclined surface is located at the bottom end near the middle of the material picking tube 46. The shape of the locking block 413 ensures that when an upward force is applied to the inclined surface of the locking block 413, it can be directed away from the material picking tube. One side of the middle section of tube 46 moves, and the outer wall of the locking block 413 is elastically connected to the inner wall of the mounting block 411 by spring 2 414. One end of spring 2 414 is fixedly connected to the outer wall of the locking block 413, and the other end of spring 2 414 is fixedly connected to the inner wall of the mounting block 411. A pull rope 415 is fixedly connected to the outer wall of the locking block 413. The pull rope 415 is inelastic. The top end of the grounding tube 2 is provided with a ring for fixing the end of the pull rope 415. The ring ensures that the pull rope 415 will not fall completely into the grounding tube 2 or the three-way tube 43. The positioning ring 45 has a slot 416 on the inner wall inside the slot 412. The height of the slot 416 matches the height of the locking block 413.

[0040] Working principle: When sampling and testing are required, the operator first starts the motor 42, which drives the three-way pipe 43 to rotate. After the three-way pipe 43 rotates 90 degrees, the upper part of the three-way pipe 43 moves to the right side.

[0041] At this time, after the oil and gas move from right to left, they enter the material collection pipe 46 and push the push plate 491. When enough oil and gas are collected, the push plate 491 is pushed to squeeze the moving bar 493, which in turn causes the moving bar 493 to move downward. This causes the moving bar 493 to drive the control rope 495 to move downward. When the control rope 495 is straightened, it drives the rotating rod 47 to rotate, which in turn causes the rotating rod 47 to drive the blocking ball 48 to rotate, thus blocking the entry position of the material collection pipe 46.

[0042] After the material is retrieved, the worker starts the motor 42 in reverse, which resets the three-way pipe 43. After the reset, the worker pulls the pull rope 415. At this time, the pull rope 415 first pulls the locking block 413, which is pulled away from the locking slot 416. Then, the pull rope 415 drives the material retrieval pipe 46 to move upward, so that the material retrieval pipe 46 leaves the three-way pipe 43 and passes through the outlet pipe 2 to be retrieved.

[0043] After the material taking tube 46 is removed, the staff puts in a new material taking tube 46 and enters the groove on the inner wall of the outlet tube 2 through the protrusion on the outer wall of the material taking tube 46. At this time, the material taking tube 46 moves downward under the action of gravity.

[0044] When the feeding tube 46 moves to the point where the inclined surface of the locking block 413 contacts the positioning ring 45, the locking block 413 is pressed on the inclined surface and enters the interior of the mounting block 411. As the feeding tube 46 continues to move downward, until the bottom contacts the top of the positioning ring 45, it enters the slot 416 under the elastic force of the second spring 414, thus ensuring the stability of the feeding tube 46 inside the three-way tube 43.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A buried oil and gas pipeline inspection device, comprising a base (1), characterized in that: A grounding pipe (2) is fixedly connected to the inner wall of the base (1), a left connecting pipe (5) is fixedly connected to the inner wall of the base (1), and a right connecting pipe (3) is fixedly connected to the inner wall of the base (1). A sampling mechanism (4) is provided both inside and on the front side of the base (1). The sampling mechanism (4) includes a mounting groove (41), which is located inside the base (1). A motor (42) is fixedly connected to the inner wall of the mounting groove (41). The output shaft of the motor (42) passes through the inner wall of the base (1) and is fixedly connected to a three-way pipe (43). A stop block 1 (44) is fixedly connected to the outer wall of the through pipe (43), a stop block 2 (49) is fixedly connected to the bottom end of the three-way pipe (43), a positioning ring (45) is fixedly connected to the inner wall of the three-way pipe (43), a material taking pipe (46) is provided above the positioning ring (45), a rotating rod (47) is rotatably connected to the inner wall of the material taking pipe (46), a stop ball (48) is fixedly connected to the outer wall of the rotating rod (47), a closing component (490) is provided inside the material taking pipe (46), and the positioning ring (45) and the material taking pipe (46) are connected by a fixing component (410).

2. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The closing assembly (490) includes a push plate (491), the outer wall of which is piston-connected to the inner wall of the feeding tube (46), the inner wall of the feeding tube (46) is provided with a moving groove (492), the inner wall of the moving groove (492) is slidably connected with a moving strip (493), the bottom end of the moving strip (493) is elastically connected to the inner wall of the moving groove (492) by a spring (494), the top end of the moving strip (493) is fixedly connected with a control rope (495), and the end of the control rope (495) away from the moving strip (493) is fixedly connected to the outer wall of the rotating rod (47).

3. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The fixing component (410) includes a mounting block (411), which is fixedly connected to the bottom end of the feeding tube (46). The top end of the positioning ring (45) is provided with a slot (412). The inner wall of the mounting block (411) is slidably connected with a locking block (413). The outer wall of the locking block (413) is elastically connected to the inner wall of the mounting block (411) by a spring (414). The outer wall of the locking block (413) is fixedly connected with a pull rope (415). The inner wall of the positioning ring (45) located inside the slot (412) is provided with a slot (416).

4. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The right side portion of the three-way pipe (43) has the same length as the upper side portion, the left side portion of the three-way pipe (43) is shorter than the right side portion, and the outer side of the three-way pipe (43) is arc-shaped.

5. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The shape of the first stop (44) is a quarter circle, and the outer wall of the first stop (44) and the outer wall of the right and upper part of the tee pipe (43) are in the same arc plane.

6. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The second stop (49) is semi-circular in shape, and the outer wall of the second stop (49) and the outer wall of the left side of the three-way pipe (43) are in the same arc plane.

7. The buried oil and gas pipeline detection device according to claim 1, characterized in that: The outer wall of the material taking tube (46) is provided with a protrusion, and the upper area of ​​the three-way tube (43) and the inner wall of the ground outlet tube (2) are provided with a groove whose shape matches the shape of the material taking tube (46).

8. The buried oil and gas pipeline detection device according to claim 3, characterized in that: The shape of the card block (413) is a right trapezoid, and the inclined surface of the card block (413) is located at the bottom end near the middle of the material picking tube (46).

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