CN210426506U - Pipe diameter measurer - Google Patents
Pipe diameter measurer Download PDFInfo
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- CN210426506U CN210426506U CN201921062025.9U CN201921062025U CN210426506U CN 210426506 U CN210426506 U CN 210426506U CN 201921062025 U CN201921062025 U CN 201921062025U CN 210426506 U CN210426506 U CN 210426506U
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- inner diameter
- diameter measuring
- measuring rod
- pipeline
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Abstract
A through pipe diameter measuring device comprises a hollow cylinder made of elastic materials, the cross section of the cylinder in the left-right vertical direction is circular, a supporting shaft is arranged in the cylinder in the axis direction, a front disc is sleeved at the front end of the supporting shaft, the circumferential surface of the front disc is supported on the inner wall of the cylinder, a rear disc is sleeved at the rear end of the supporting shaft, the circumferential surface of the rear disc is supported on the inner wall of the cylinder, and a plurality of pipeline inner diameter measuring devices are sleeved in the middle of the supporting shaft. The pipe caliper capable of measuring out-of-roundness and inner diameter change of a crude oil conveying pipeline, effectively finding out areas with excessive wax accumulation and parts with high out-of-roundness in the pipeline in time and processing the areas, and avoiding reduction of crude oil conveying capacity of the pipeline, increase of energy consumption and difficulty in restarting of the crude oil conveying pipeline due to reduction of the inner diameter.
Description
Technical Field
The utility model relates to a siphunculus calibrator that can be in the inside use of pipeline of carrying crude oil.
Background
Most oil fields in China enter a later production stage, oil produced by most oil fields is crude oil with high condensation point, high wax content and high viscosity, and the crude oil in part of areas is solidified at normal temperature and needs to be heated and then conveyed to reduce the viscosity and prevent wax components from being separated out. The temperature of crude oil in the pipeline is reduced along with the increase of the conveying distance, and the change of the inner diameter of the pipeline caused by the crude oil such as wax deposition and the like is measured in time so as to ensure that the normal conveying of the pipeline is an important safety problem in the operation of long-distance conveying pipelines. The problem of the operation safety of the long-distance pipeline is very important in the increasingly strong production and operation of the crude oil transportation official network in China, and particularly for the long-distance pipeline with the condensation point temperature of the transported crude oil higher than the environmental temperature of the pipeline. Carry out the temperature field analysis calculation of crude oil pipeline, learn that the crude oil pipeline can reduce along with the increase temperature of transport distance thereupon, near the pipe wall because receive the pipeline outer heat preservation to reveal etc. reason lead to the temperature to reduce when a large amount of wax compositions can appear and bond on the pipeline inner wall, especially pipeline in cold areas receives the influence the biggest, when the pipeline inner wall condenses a large amount of wax compositions, can lead to crude oil pipeline internal diameter to diminish, increase and carry the energy consumption, stop defeatedly restart difficulty and reduce and carry the productivity.
If the pipe wall has the defects of out-of-roundness of the outer surface, such as pits, deformation, flattening and the like, when the pipe is built, the flowing filling of the crude oil is changed at the defects, and wax is accumulated at the positions, so that the conveying diameter of the pipe is reduced.
At present, an intelligent pipe cleaning device is mostly adopted for pipeline ball cleaning and diameter measurement of a crude oil long-distance pipeline, ultrasonic waves or rays are generally adopted for analyzing and measuring the inner wall of the pipeline, the equipment is expensive, and the influence of wax deposition on the inner diameter of the pipeline cannot be directly measured. When the outer surface of the pipe clearing device does not have the function of changing the diameter, the pipe clearing device is easy to clamp a specific pipeline position due to scraping and accumulating a large amount of accumulated wax, or the pipe is directly clamped at a position with high non-roundness of the pipeline, so that some potential safety production hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a measurable quantity crude oil pipeline out of roundness and internal diameter change in time effectively discover the inside wax deposition too much area of pipeline and the higher position of out of roundness and handle, avoid crude oil pipeline to diminish because of the internal diameter and lead to pipeline crude oil transport ability to reduce, the energy consumption to increase and at the siphunculus diameter measuring ware of restart difficulty.
The utility model discloses a siphunculus calibrator, including the hollow barrel that elastic material made, the cross-section of barrel along left and right vertical direction is circular, is equipped with the back shaft along the axis direction in the barrel, and the front end cover of back shaft is equipped with preceding disc, and the periphery of preceding disc supports on the inner wall of barrel, and the rear end cover of back shaft is equipped with the back disc, and the periphery of back disc supports on the inner wall of barrel, and the middle part cover of back shaft is equipped with a plurality of pipeline internal diameter measuring devices;
the pipeline inner diameter measuring device comprises a base, wherein a sleeving hole is formed in the middle of the base along the axis direction of a cylinder, the base is sleeved on a supporting shaft through the sleeving hole, a plurality of inner diameter measuring rod inserting holes are uniformly formed in the base around the axis of the sleeving hole, each inner diameter measuring rod inserting hole is radially formed, an inner diameter measuring rod is inserted into each inner diameter measuring rod inserting hole in a clearance fit mode, the outer end of each inner diameter measuring rod is connected with the wall of the cylinder, a reset pressure spring is arranged at the inner end of each inner diameter measuring rod inserting hole, the outer end of each reset pressure spring abuts against the inner end of the corresponding inner diameter measuring rod, the outer end of each reset pressure spring abuts against the bottom of the corresponding inner diameter measuring rod inserting hole, a position sensor for monitoring the inner diameter measuring rod is arranged in each inner diameter measuring rod inserting hole, and each position sensor is connected with a data recorder through a data line, the data recorder is positioned inside or outside the cylinder body;
and a valve for inflating is arranged on the outer wall of the cylinder body.
The utility model discloses a siphunculus calibrator, wherein be equipped with 6-12 internal diameter measuring rod cartridge holes and internal diameter measuring rod around the axis equipartition in suit hole on the base, pipeline internal diameter measuring device's quantity is 2-4.
The utility model discloses a siphunculus calibrator, wherein be equipped with the air-vent valve on the wall of barrel, be equipped with 8-10 internal diameter measuring rod cartridge holes and internal diameter measuring rod around the axis equipartition in suit hole on the base, distance between the adjacent pipeline internal diameter measuring device is 300 mm-600 mm.
The utility model discloses a siphunculus calibrator, wherein the barrel adopts polytetrafluoroethylene to make.
The utility model discloses a siphunculus calibrator, wherein every the inner wall looks adhesion of cushion and barrel is passed through respectively to the outer end of internal diameter measuring stick.
The utility model discloses a siphunculus calibrator, wherein the barrel terminal surface forward is bellied spherical shape forward, and the rear portion of barrel is the round platform shape or the taper shape of the directional rear of cone angle.
The utility model discloses a siphunculus calibrator is when using, through the inside internal diameter of measuring of direct contact crude oil pipeline and out-of-roundness, in time measures the influence of pipeline wax deposition to the internal diameter, can also measure out-of-roundness's when the pipeline is handed over numerical value, avoids the pipeline to reduce because of the internal diameter and out-of-roundness production transport productivity reduces, the energy consumption increases and stops defeated restart difficulty. The utility model discloses a siphunculus calibrator is through directly measuring receiving the great former oil pipe way of environmental impact, through in time measuring internal diameter and out-of-roundness numerical value, can in time take corresponding measure to alleviate the influence of wax deposition to the pipeline, can also eliminate the internal diameter undersize and lead to its unsafe factor that stops defeated restart existence, lets long defeated pipeline keep always in effective transport productivity within range that effective power consumption is minimum, obtains the biggest economic benefits. Therefore, the utility model discloses a siphunculus calibrator has measurable quantity crude oil pipeline out of roundness and internal diameter to change, in time effectively discovers the inside wax deposition too much area of pipeline and the higher position of out of roundness and handles, avoids crude oil pipeline to diminish because of the internal diameter and leads to pipeline crude oil transport ability to reduce, the energy consumption to increase and at the siphunculus calibrator of restart difficulty.
The pipe caliper of the present invention will be further described below.
Drawings
Fig. 1 is a front sectional view of a schematic structural diagram of a through pipe caliper of the present invention;
fig. 2 is a side sectional view of fig. 1.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses a siphunculus caliper, including the hollow barrel 1 that elastic material made, the surface of barrel 1 is the smooth surface, the cross-section of barrel 1 along controlling vertical direction is circular, be equipped with back shaft 8 along the axis direction in the barrel 1, the front end of back shaft 8 is overlapped and is equipped with preceding disc 2, the periphery of preceding disc 2 supports on the inner wall of barrel 1, the rear end of back shaft 8 is overlapped and is equipped with back disc 3, the periphery of back disc 3 supports on the inner wall of barrel 1, the middle part cover of back shaft 8 is equipped with a plurality of pipeline internal diameter measuring devices;
the front disc 2, the support shaft 8 and the rear disc 3 serve to support the cylinder 1 in the front-rear direction,
the pipeline inner diameter measuring device comprises a base 4, a sleeving hole is formed in the middle of the base 4 along the axis direction of a barrel 1, the base 4 is sleeved on a supporting shaft 8 through the sleeving hole, a plurality of inner diameter measuring rod inserting holes are uniformly formed in the base 4 around the axis of the sleeving hole, each inner diameter measuring rod inserting hole is radially formed, an inner diameter measuring rod 5 is inserted in each inner diameter measuring rod inserting hole in a clearance fit mode, the outer end of each inner diameter measuring rod 5 is connected with the wall of the barrel 1, a reset pressure spring is arranged at the inner end in each inner diameter measuring rod inserting hole, the outer end of each reset pressure spring abuts against the inner end of the corresponding inner diameter measuring rod 5, the outer end of each reset pressure spring abuts against the bottom of the corresponding inner diameter measuring rod inserting hole, and a position sensor for monitoring the inner diameter measuring rod 5 is arranged in each inner diameter measuring rod inserting hole, each position sensor is respectively connected with a data recorder 6 through a data line, and the data recorder 6 is positioned inside or outside the cylinder body 1;
and a valve for inflating is arranged on the outer wall of the cylinder body 1. When the air-pressure-type cylindrical shell is used, air can be pressed into the cylindrical shell 1 through the valve, the internal pressure of the cylindrical shell 1 is slightly higher than the external pressure, and the shape of the cylindrical shell 1 is kept in an outward bulging state.
As a further improvement, the above-mentioned base 4 is equipped with 6-12 internal diameter measuring rod cartridge holes and internal diameter measuring rod 5 around the axis equipartition in suit hole, pipeline internal diameter measuring device's quantity is 2-4.
As a further improvement, the utility model is provided with an air-vent valve 7 on the wall of the above-mentioned barrel 1, be equipped with 8-10 internal diameter measuring rod cartridge holes and internal diameter measuring rod 5 on the base 4 around the axis equipartition in suit hole, the distance between the adjacent pipeline internal diameter measuring device is 300 mm-600 mm.
As a further improvement of the utility model, the cylinder body 1 is made of polytetrafluoroethylene.
As a further improvement, the utility model discloses an above-mentioned every the inner wall looks adhesion of cushion and barrel 1 is passed through respectively to the outer end of internal diameter measuring stick 5.
As a further improvement of the present invention, the forward end surface of the barrel 1 is a forward convex spherical shape, and the rear portion of the barrel 1 is a truncated cone shape or a conical shape with a conical angle pointing to the rear.
The utility model discloses an it is equipped with the preceding disc 2 of both ends in order to keep the tube shape around supporting to be equipped with in inclosed barrel 1, back shaft 8 and back disc 3, be provided with a plurality of pipeline internal diameter measuring device that have the calipers and keep the tube shape in barrel 1 simultaneously, every internal diameter measuring stick 5 of a plurality of pipeline internal diameter measuring device can make concertina movement in barrel 1 according to the change of 9 internal diameters of pipeline, barrel 1 can be formed by polytetrafluoroethylene monolithic pouring, the internal diameter measuring stick cartridge hole that every internal diameter measuring stick 5 corresponds on base 4 stretches out and draws back and records the pipeline internal diameter, data recorder 6 records its arm length change according to the concertina movement of every internal diameter measuring stick 5, and record all data and change, the data of all data
When the cylinder 1 flows in the pipeline 9 for transporting crude oil, different pressures are met, and the pressure regulating valve 7 releases the pressure to keep the pressures inside and outside the cylinder 1 approximately balanced so as to maintain the appearance shape of the cylinder 1.
The number of the inner diameter measuring rods 5 can be increased or decreased by an amount according to the size of the inner diameter of the pipe 9 to measure more accurate circumference ratio and inner diameter variation.
The inner diameter measuring rod 5 can adjust the telescopic length thereof to observe the inner diameter of the pipeline with excessive wax deposition inside the pipeline 9 or excessive change of the appearance of the pipeline 9.
The position of each pipeline inner diameter measuring device can be adjusted back and forth on the supporting shaft 8 so as to keep the pipe diameter measuring device in balance back and forth in crude oil with different densities.
The number of the inner diameter measuring devices of the pipeline can be adjusted according to the requirements of the situation so as to observe the pipeline with larger damage and larger curvature on the inner surface of the pipeline 9.
The cylinder 1 may have a smaller diameter at the front and a larger diameter at the rear, so that the crude oil drives the cylinder 1 to move inside the pipe 9.
The positions of the inner diameter measuring devices of the pipelines are pulled apart by a certain distance, so that the front section of the barrel body 1 is prevented from floating upwards or sinking.
The telescopic length of each inner diameter measuring rod 5 is 1/4 to 1/2 of the inner diameter of the pipeline, and the pressure regulating valve 7 can keep the gas pressure of the cylinder 1 slightly larger than the pressure of crude oil in the pipeline, keep the appearance of the cylinder and prevent the gas in the cylinder 1 from leaking.
The front disk 2 and the rear disk 3 may be formed in a triangular pyramid shape to reduce fluid resistance, and the front disk 2 and the rear disk 3 may be formed in a large area to increase thrust of the flowing crude oil to the cylinder 1.
The cylinder 1 can adopt a multi-cylinder arrangement to prevent the corrosion of sulfur-containing crude oil, or can be filled with a low-density expansion material to prevent the crude oil from entering the cylinder and keep the shape of the cylinder.
The positions of the front disc 2 and the rear disc 3 can be adjusted back and forth on the supporting shaft 8, so that the back and forth balance of the barrel 1 is ensured.
The utility model discloses an install the downthehole position sensor who is used for monitoring internal diameter measuring stick 5 of every internal diameter measuring stick cartridge, record 5 length changes of internal diameter measuring stick and transmit data recorder 6 in, and then obtain whether crude oil wax composition appears and whether the pipeline exists the out-of-roundness condition, further analysis obtains the pipeline internal diameter and the out-of-roundness condition.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. Siphunculus caliber measurer, its characterized in that: the device comprises a hollow cylinder body (1) made of elastic materials, wherein the cross section of the cylinder body (1) in the left-right vertical direction is circular, a supporting shaft (8) is arranged in the cylinder body (1) in the axis direction, a front disc (2) is sleeved at the front end of the supporting shaft (8), the circumferential surface of the front disc (2) is supported on the inner wall of the cylinder body (1), a rear disc (3) is sleeved at the rear end of the supporting shaft (8), the circumferential surface of the rear disc (3) is supported on the inner wall of the cylinder body (1), and a plurality of pipeline inner diameter measuring devices are sleeved in the middle of the supporting shaft (8);
the pipeline inner diameter measuring device comprises a base (4), the middle part of the base (4) is provided with a sleeving hole along the axis direction of a barrel (1), the base (4) is sleeved on a supporting shaft (8) through the sleeving hole, a plurality of inner diameter measuring rod inserting holes are uniformly arranged on the base (4) around the axis of the sleeving hole, each inner diameter measuring rod inserting hole is radially arranged, an inner diameter measuring rod (5) is inserted in each inner diameter measuring rod inserting hole in a clearance fit mode, the outer end of each inner diameter measuring rod (5) is connected with the wall of the barrel (1) respectively, the inner end of each inner diameter measuring rod inserting hole is provided with a reset pressure spring respectively, the outer end of each reset pressure spring is respectively abutted against the inner end of the corresponding inner diameter measuring rod (5), the outer end of each reset pressure spring is abutted against the bottom of the corresponding inner diameter measuring rod inserting hole respectively, a position sensor for monitoring the inner diameter measuring rod (5) is arranged in each inner diameter measuring rod inserting hole respectively, each position sensor is respectively connected with a data recorder (6) through a data line, and the data recorder (6) is positioned inside or outside the cylinder body (1);
and a valve for inflating is arranged on the outer wall of the cylinder body (1).
2. A pipe caliper according to claim 1, characterized in that: 6-12 inner diameter measuring rod inserting holes and inner diameter measuring rods (5) are uniformly arranged on the base (4) around the axis of the sleeving hole, and the number of the pipeline inner diameter measuring devices is 2-4.
3. A pipe caliper according to claim 2, characterized in that: the wall of the barrel body (1) is provided with a pressure regulating valve (7), 8-10 inner diameter measuring rod inserting holes and inner diameter measuring rods (5) are uniformly arranged on the base (4) around the axis of the sleeving hole, and the distance between adjacent pipeline inner diameter measuring devices is 300-600 mm.
4. A pipe caliper according to claim 3, characterized in that: the cylinder body (1) is made of polytetrafluoroethylene.
5. A pipe caliper according to any of claims 1 to 4, characterized in that: the outer end of each inner diameter measuring rod (5) is respectively adhered to the inner wall of the cylinder body (1) through a rubber mat.
6. A pipe caliper according to claim 5, characterized in that: the forward end surface of the cylinder body (1) is in a forward convex spherical shape, and the rear part of the cylinder body (1) is in a truncated cone shape or conical shape with a conical angle pointing to the rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062025.9U CN210426506U (en) | 2019-07-08 | 2019-07-08 | Pipe diameter measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921062025.9U CN210426506U (en) | 2019-07-08 | 2019-07-08 | Pipe diameter measurer |
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| Publication Number | Publication Date |
|---|---|
| CN210426506U true CN210426506U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921062025.9U Active CN210426506U (en) | 2019-07-08 | 2019-07-08 | Pipe diameter measurer |
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| CN (1) | CN210426506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398220A (en) * | 2019-07-08 | 2019-11-01 | 中国安全生产科学研究院 | The siphunculus caliper of variable outer diameter |
-
2019
- 2019-07-08 CN CN201921062025.9U patent/CN210426506U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398220A (en) * | 2019-07-08 | 2019-11-01 | 中国安全生产科学研究院 | The siphunculus caliper of variable outer diameter |
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