CN117091903B - Crude oil pipeline sampler - Google Patents
Crude oil pipeline sampler Download PDFInfo
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- CN117091903B CN117091903B CN202311330065.8A CN202311330065A CN117091903B CN 117091903 B CN117091903 B CN 117091903B CN 202311330065 A CN202311330065 A CN 202311330065A CN 117091903 B CN117091903 B CN 117091903B
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- fixedly connected
- crude oil
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- sampling
- frame
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- 239000010779 crude oil Substances 0.000 title claims abstract description 61
- 239000000523 sample Substances 0.000 claims abstract description 144
- 238000005070 sampling Methods 0.000 claims abstract description 96
- 239000003921 oil Substances 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a crude oil pipeline sampler, and relates to the technical field of liquid sampling. Aiming at the problem of impurity doping of crude oil samples. The invention provides a crude oil pipeline sampler which comprises a first connecting frame, wherein the first connecting frame is fixedly connected with an oil pipeline, a sampling shell is fixedly connected with the first connecting frame, a probe tube is slidably connected in the sampling shell, and a sealing air bag for sealing a gap between the probe tube and the sampling shell is fixedly connected at one side, close to an opening and closing valve, of the sampling shell. According to the invention, the sampling shell is plugged by expanding the sealing air bag, so that crude oil close to the pipe wall is prevented from directly carrying more impurities into the sampler under the action of hydraulic pressure, and then the crude oil is inserted into the middle part of the oil conveying pipeline through the probe pipe, so that the crude oil with purer middle part passes through the tiny oil inlet hole on the probe pipe, and a purer crude oil sample can be taken.
Description
Technical Field
The invention relates to the technical field of liquid sampling, in particular to a crude oil pipeline sampler.
Background
In order to determine the quality of oil in a crude oil pipeline, a related technician generally adopts a crude oil sampling system to sample crude oil in the oil pipeline, detects and analyzes the collected sample oil, and obtains related parameter indexes for judgment.
At present, the side of crude oil pipeline all can set up the sample department that has the valve, when the sample, install the sampling tube on the valve of crude oil pipeline sample department, because crude oil has certain hydraulic pressure when flowing in crude oil pipeline, therefore when opening the valve and taking a sample, crude oil in the oil pipeline can dial the impurity of depositing on the oil pipeline pipe wall under the hydraulic effect for in impurity gets into the sampling tube along with crude oil through the valve, lead to the oil sample to be impure inadequately, thereby exert an influence to the accuracy and the representativeness of sample, be unfavorable for the detection analysis of crude oil sample.
Disclosure of Invention
In order to overcome the defect that crude oil samples are doped with impurities, the invention provides a crude oil pipeline sampler.
The utility model provides a crude oil pipeline sampler, including first link, first link rigid coupling in oil pipeline, oil pipeline's sample department is provided with the valve that opens and shuts, first link rigid coupling has the sample casing, the sample casing pass through the screw thread with the valve dismantlement that opens and shuts is connected, the sample section of thick bamboo has been placed to first link, the sample casing with the butt joint of sample section of thick bamboo dismantlement formula intercommunication, sliding connection has the probe in the sample casing, the probe is close to one side of first link is opened there is the inlet port, open at the middle part of probe has the oil outlet, be close to in the sample casing one side rigid coupling of valve that opens and shuts has the sealing airbag that is used for sealing the probe with the gap between the sample casing, the probe is kept away from the tip rigid coupling of first link one side has the annular handle, the annular handle is provided with and is used for to the inflation subassembly that the sealing airbag is inflated.
In a preferred embodiment of the present invention, the inflating assembly includes a third inflator, the third inflator is fixedly connected to the annular handle, a pull frame is fixedly connected to a piston rod of the third inflator, the pull frame is slidably connected to the annular handle, and a second air duct is fixedly connected between the third inflator and the sealing air bag.
In a preferred embodiment of the invention, the invention further comprises a steel ball for positioning the pull frame, wherein the steel ball is arranged on the annular handle, and the steel ball is matched with the pull frame.
In a preferred embodiment of the invention, the sampling device further comprises a threaded ring, wherein the threaded ring is fixedly connected to one side, close to the sealing air bag, of the sampling shell, a second connecting frame is connected to the outer wall of the probe through a spline, a supporting frame is fixedly connected to one side, far away from the threaded ring, of the outer wall of the probe, a threaded block is rotatably connected to the supporting frame, the threaded block is in threaded fit with the threaded ring, a screw rod is fixedly connected to one end, close to the threaded block, of the second connecting frame, the screw rod is in threaded connection with the probe through a spline, the screw rod is in threaded connection with the threaded block, a baffle ring for blocking an oil inlet hole of the probe is fixedly connected to the second connecting frame, and the baffle ring is in threaded connection with the probe.
In a preferred embodiment of the invention, the device further comprises a connecting ring, the connecting ring is fixedly connected to the outside of one side, far away from the threaded block, of the sampling shell, a first air cylinder of an annular array is fixedly connected in an embedded manner in the sampling shell, the first air cylinder is communicated with the connecting ring, a top frame is connected between the first air cylinders of the annular array in a sliding manner, the top frame is matched with the threaded block, a pressure spring is fixedly connected between the top frame and the first air cylinder, a second air cylinder is fixedly connected to one side, close to the sampling cylinder, of the sampling shell, a first air duct is communicated between the second air cylinder and the connecting ring, a connecting block used for communicating an oil outlet of the probe tube is fixedly connected to the end part of a piston rod of the second air cylinder, a separation block used for blocking crude oil entering the sampling cylinder through the sampling shell is connected in a sliding manner, and a flow guide pipe is connected to the connecting block, and penetrates through the separation block.
In a preferred embodiment of the invention, a through hole corresponding to the oil outlet of the probe is formed on one side of the connecting block, which is close to the probe, a limit groove which is matched with the connecting block is formed on the outer wall of the sampling shell, and the oil outlet of the probe is positioned in the limit groove.
In a preferred embodiment of the present invention, the present invention further comprises an expansion block for overpressure protection, wherein the expansion block is communicated with one side of the first air duct, which is close to the second air cylinder.
In a preferred embodiment of the invention, the sampling device further comprises symmetrically distributed telescopic components, wherein the symmetrically distributed telescopic components are fixedly connected to one side, close to the sealing air bag, of the sampling shell, a clamping block for stabilizing the probe tube is fixedly connected to the telescopic end of the telescopic components, a pushing frame is slidably connected to one side, close to the sealing air bag, of the probe tube, the pushing frame is matched with the sealing air bag, a swinging rod is rotatably connected between the clamping block and the pushing frame, steel balls are slidably connected with the annular handle, and springs are fixedly connected between the steel balls and the annular handle.
In a preferred embodiment of the present invention, the sampling device further includes a clamping block, the clamping block is fixedly connected to the annular handle, and a clamping frame is sleeved on one side of the outer wall of the sampling housing, which is close to the clamping block.
In a preferred embodiment of the present invention, the sampling device further comprises a coiled heating wire, the heating wire is disposed in the sampling housing, the probe tube penetrates through the coiled heating wire, and a battery for supplying power to the heating wire is fixedly connected in the sampling housing.
The invention has the beneficial effects that:
1. according to the invention, the sampling shell is plugged by expanding the sealing air bag, so that crude oil close to the pipe wall is prevented from directly carrying more impurities into the sampler under the action of hydraulic pressure, and then the crude oil is inserted into the middle part of the oil conveying pipeline through the probe pipe, so that the crude oil with purer middle part passes through the tiny oil inlet hole on the probe pipe, and a purer crude oil sample can be taken.
2. According to the invention, the oil inlet of the exploratory tube is opened to sample at fixed distance only after the exploratory tube is inserted into the oil pipeline, so that the exploratory tube is ensured to be far away from the wall of the oil pipeline sufficiently, and the purity of an oil sample is improved.
3. According to the invention, a small part of crude oil entering the sampling shell is blocked by the separation block to enter the sampling tube, and purer crude oil is led into the sampling tube through the specific channel, so that the condition that the sealing air bag cannot be completely sealed is avoided, and the fact that the impurity is carried by the less crude oil to enter the sampling shell under the hydraulic action is prevented.
4. According to the invention, after the probe penetrates into the oil pipeline to stop moving, a sampling person continues to pull the pulling frame towards the palm, the clamping block moves inwards to clamp the left part of the probe, the clamping block is clamped into the clamping frame to fix the right part of the probe, the probe is prevented from shaking along with the flow direction of crude oil, and the impurities on the inner wall of the oil pipeline are prevented from being knocked off.
5. According to the invention, the heating wire is electrified, so that the sampler is in a proper heating environment, and the crystallized wax in the crude oil is melted.
Drawings
Fig. 1 is a schematic perspective view of an oil pipeline and a sampling housing according to the present invention.
FIG. 2 is a schematic perspective view of the probe and ring handle of the present invention.
FIG. 3 is a schematic perspective view of the sampling housing and the sealing airbag of the present invention.
Fig. 4 is a schematic perspective view of the opening and closing valve and the pull frame of the present invention.
Fig. 5 is a schematic perspective view of the pull frame and the second air duct.
Fig. 6 is a schematic perspective view of the screw block, screw rod, baffle ring and other parts of the present invention.
Fig. 7 is an exploded view of the parts of the screw block, screw rod, retainer ring, etc. of the present invention.
FIG. 8 is a schematic perspective view of the first and second cylinders of the present invention.
Fig. 9 is a schematic perspective view of the connecting ring and the connecting block of the present invention.
Fig. 10 is a schematic perspective view of the clamping block, clamping frame and other parts according to the present invention.
Fig. 11 is a schematic perspective view of steel ball, spring and other parts.
Fig. 12 is a schematic perspective view of the clamping block, pushing frame and other parts of the present invention.
Fig. 13 is a schematic perspective view of the heating wire and battery of the present invention.
Wherein: 1. an oil delivery pipeline; 101. a first connection frame; 102. opening and closing the valve; 103. a sampling housing; 104. a sampling tube; 105. a probe tube; 106. sealing the air bag; 107. an annular handle; 2. a third air cylinder; 201. a pull frame; 202. a second air duct; 203. steel balls; 3. a threaded ring; 301. a second connecting frame; 302. a support frame; 303. a screw block; 304. a screw rod; 305. a baffle ring; 4. a connecting ring; 401. a first air cylinder; 402. a top frame; 403. a pressure spring; 404. a second air cylinder; 405. a first air duct; 406. a connecting block; 407. a separation block; 408. a flow guiding pipe; 409. an expansion block; 5. a telescoping assembly; 501. clamping blocks; 502. pushing a frame; 503. swing rod; 504. a spring; 505. a clamping block; 506. a clamping frame; 6. heating the wire; 601. and a battery.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1: 1-3, including first link 101, first link 101 rigid coupling is in oil pipeline 1, oil pipeline 1's sample department is provided with switching valve 102, first link 101 right side rigid coupling has sampling housing 103, sampling housing 103 passes through the screw thread and is connected with switching valve 102 dismantlement formula, first link 101 lower part passes through crooked elastic metal sheet centre gripping sampling tube 104, sampling housing 103 and sampling tube 104 dismantlement formula butt joint intercommunication, sliding connection has probe 105 in sampling housing 103, probe 105 is used for taking a sample, open at the middle part of probe 105 has the oil outlet, open the left side of probe 105 has the inlet port, the left part rigid coupling has sealed gasbag 106 in the sampling housing 103, sealed gasbag 106 inflates, be used for sealing the gap between probe 105 and the sampling housing 103, probe 105 right-hand member rigid coupling has annular handle 107, annular handle 107 is provided with the pumping subassembly, the pumping subassembly is done the grip motion to the pumping of sampling personnel, be used for pumping sealed gasbag 106.
As shown in fig. 4-5, the inflation assembly comprises a third air cylinder 2 which is vertically symmetrical, the third air cylinder 2 which is vertically symmetrical is fixedly connected with an annular handle 107, a pull frame 201 is fixedly connected between piston rods of the third air cylinder 2 which is vertically symmetrical, the pull frame 201 is slidably connected with the annular handle 107, the pull frame 201 is held, the pull frame 201 is pulled towards the palm of the hand for inflation operation, a second air duct 202 is fixedly connected between the third air cylinder 2 and the sealing air bag 106, the annular handle 107 is provided with a steel ball 203, the steel ball 203 is used for positioning the pull frame 201, the steel ball 203 is matched with the pull frame 201, when the pull frame 201 moves to be in contact with the steel ball 203, the sealing air bag 106 is just inflated to be in contact with the outer wall of the probe tube 105, and the inflation degree of the sealing air bag 106 is convenient to be intuitively controlled.
When a crude oil sample needs to be taken from the oil pipeline 1, a sampling person finishes the installation of the sampler, and the installation operation is as follows: the first connecting frame 101 is fixed on the outer wall of the sampling part of the oil pipeline 1 through screws, sampling is started after the installation is completed, and the sampling operation is specifically as follows: firstly, the annular handle 107 and the pull frame 201 are held, the pull frame 201 is pulled towards the palm, the pull frame 201 pushes the piston rod of the third air cylinder 2 rightwards, the air of the third air cylinder 2 is pressed into the sealing air bag 106 through the second air duct 202, the sealing air bag 106 is inflated, when the pull frame 201 slides to be in contact with the steel balls 203, the pull frame 201 is stopped, and at the moment, the sealing air bag 106 is inflated to be just attached to the outer wall of the probe tube 105, so that the effect of sealing a gap between the probe tube 105 and the sampling shell 103 is achieved;
then opening the opening and closing valve 102, wherein crude oil in the oil pipeline 1 is difficult to flow into the sampling shell 103 through the opening and closing valve 102 due to the sealing effect of the sealing air bag 106, then a sampling person pushes the annular handle 107 leftwards, so that the probe 105, the third air cylinder 2, the pull frame 201 and the steel balls 203 integrally move leftwards, the probe 105 sequentially passes through the sealing air bag 106 and the valve port of the opening and closing valve 102 to enter the middle part in the oil pipeline 1, in the penetrating process, the crude oil enters the probe 105 through the oil inlet of the probe 105, then enters the sampling shell 103 through the oil outlet of the probe 105, and finally flows into the sampling barrel 104;
to sum up, firstly, the sampling shell 103 is plugged by expanding the sealing air bag 106, so that crude oil close to the pipe wall is prevented from directly carrying more impurities under the action of hydraulic pressure to enter the sampler, and then the middle part of the oil pipeline 1 is inserted into the detecting pipe 105, so that the crude oil with purer middle part passes through the tiny oil inlet hole on the detecting pipe 105, and a purer crude oil sample can be taken.
After the sampling is completed, the sampler pulls the annular handle 107 rightward firstly, so that the probe tube 105 penetrates out of the valve port of the opening and closing valve 102, then the opening and closing valve 102 is closed, and then the annular handle 107 is pulled leftward, so that the probe tube 105, the third air cylinder 2, the pull frame 201 and the steel balls 203 are integrally moved leftward to reset, finally the pull frame 201 is pushed reversely to reset, the pull frame 201 pulls the piston rod of the third air cylinder 2 leftward, the gas in the sealing air bag 106 is pumped back to the third air cylinder 2 through the second air guide tube 202, and the sealing air bag 106 leaks and contracts.
Example 2: on the basis of embodiment 1, as shown in fig. 2, 6 and 7, the sampling device further comprises a threaded ring 3, wherein the threaded ring 3 is fixedly connected to the left side of the sampling shell 103, a second connecting frame 301 is connected to the outer wall of the probe tube 105 through a spline, a supporting frame 302 is fixedly connected to the right side of the outer wall of the probe tube 105, a threaded block 303 is rotatably connected to the left side of the supporting frame 302, the threaded block 303 is in threaded fit with the threaded ring 3, a screw rod 304 is fixedly connected to the right end of the second connecting frame 301, the screw rod 304 is in spline connection with the probe tube 105, the screw rod 304 is in threaded connection with the threaded block 303, a baffle ring 305 is fixedly connected to the left end of the second connecting frame 301, the baffle ring 305 is in spline connection with the probe tube 105, and the baffle ring 305 is used for plugging an oil inlet hole of the probe tube 105.
At first, the oil inlet of the probe tube 105 is blocked by the baffle ring 305, when the probe tube 105 moves leftwards, the probe tube 105 drives the support frame 302 and the threaded block 303 to synchronously move leftwards, and when the threaded block 303 moves leftwards to pass through the threaded ring 3, at the moment, the probe tube 105 is inserted into the oil pipeline 1 for a certain distance, the threaded block 303 starts to rotate leftwards under the action of the threads of the threaded ring 3, so that the screw rod 304 slides rightwards relative to the probe tube 105 in the process of moving leftwards along with the probe tube 105, and further drives the baffle ring 305 to move rightwards without blocking the oil inlet of the probe tube 105, oil inlet sampling can be started, and in combination, the oil inlet of the probe tube 105 is started to be opened for distance sampling after the probe tube 105 is inserted into the oil pipeline 1, so that the probe tube 105 is fully far away from the wall of the oil pipeline 1, and the purity of an oil sample is improved.
When the probe tube 105 moves rightwards, the probe tube 105 drives the supporting frame 302 and the threaded block 303 to synchronously move rightwards, and the threaded block 303 moves rightwards and is reversely rotated under the action of the threads of the threaded ring 3 in the process of separating from the threaded ring 3, so that the screw rod 304 slides leftwards relative to the probe tube 105 in the process of moving rightwards along with the probe tube 105, and further drives the baffle ring 305 to move leftwards to baffle the oil inlet of the probe tube 105 again.
As shown in fig. 8 and 9, the device further comprises a connecting ring 4, the connecting ring 4 is fixedly connected to the left side of the sampling shell 103, four first air cylinders 401 in annular array are fixedly connected in the sampling shell 103 in an embedded manner, the first air cylinders 401 are communicated with the connecting ring 4, a top frame 402 is connected between the four first air cylinders 401 in annular array in a sliding manner, the top frame 402 is matched with a threaded block 303, the threaded block 303 and the top frame 402 are both in a circular ring shape, the outer diameter of the threaded block 303 is larger than that of the top frame 402, a pressure spring 403 is fixedly connected between the top frame 402 and the first air cylinders 401, two second air cylinders 404 are fixedly connected to the lower part of the front side of the sampling shell 103, a first air duct 405 is communicated between the two second air cylinders 404 and the connecting ring 4, A connecting block 406 for communicating the oil outlet of the probe tube 105 is fixedly connected between the end parts of piston rods of the two second air cylinders 404, a through hole corresponding to the oil outlet of the probe tube 105 is formed in the rear side of the connecting block 406, a limit groove is formed in the outer wall of the sampling shell 103, the limit groove is matched with the connecting block 406, the oil outlet of the probe tube 105 is located in the limit groove, a crude oil sample sequentially passes through the oil outlet of the probe tube 105, the through hole of the connecting block 406 and a guide pipe 408 to enter the sampling tube 104, the sampling shell 103 is slidably connected with a separation block 407, the separation block 407 is used for blocking the crude oil from entering the sampling tube 104 through the sampling shell 103, the connecting block 406 is communicated with the guide pipe 408, the guide pipe 408 penetrates through the separation block 407, and an expansion block 409 for overpressure protection is communicated with the middle part of the first air guide pipe 405.
The sealing bladder 106 does not guarantee a complete seal, and therefore, in order to prevent a small portion of crude oil still carrying impurities into the sampling housing 103 under the action of hydraulic pressure, it is necessary to block the passage between the sampling housing 103 and the sampling cartridge 104, sampling by means of a specific branched pipe, the specific operations being as follows: the threaded block 303 contacts with the top frame 402 in the leftward moving process, the top frame 402 is extruded to move leftward, the pressure spring 403 is compressed, gas in the first gas cylinder 401 is pressed into the second gas cylinder 404 through the connecting ring 4 and the first gas guide pipe 405, a piston rod of the second gas cylinder 404 pushes the connecting block 406 to move backward and clamp into a limit groove of the probe tube 105, at the moment, the probe tube 105 stops moving, an oil outlet of the probe tube 105 corresponds to a through hole of the connecting block 406, a crude oil sample sequentially passes through the oil outlet of the probe tube 105, the through hole of the connecting block 406 and the guide pipe 408 to enter the sampling cylinder 104, and on the whole, a small part of crude oil entering the sampling shell 103 is blocked by the separating block 407 to enter the sampling cylinder 104, and purer crude oil is led into the sampling cylinder 104 through a specific channel.
In the inflation process, if the gas in the second air cylinder 404 is too much, the connection block 406 moves backward to contact with the wall of the probe tube 105, the limit groove of the probe tube 105 is still on the right side of the connection block 406, and at this time, the gas in the first air duct 405 makes the expansion block 409 to play an overpressure protection effect until the limit groove of the probe tube 105 moves leftwards to correspond to the connection block 406.
When the threaded block 303 is separated from the top frame 402 in the rightward moving process, the pressure spring 403 resets to drive the top frame 402 to move rightward, so that gas in the second gas cylinder 404 is pumped back into the first gas cylinder 401 through the connecting ring 4 and the first gas guide tube 405, and the connecting block 406 moves forward to reset and separate from the limit groove of the probe tube 105.
Example 3: on the basis of embodiment 2, as shown in fig. 10-12, the device further comprises symmetrically distributed telescopic components 5, the symmetrically distributed telescopic components 5 are fixedly connected to the left side in the sampling shell 103, the telescopic ends of the telescopic components 5 are fixedly connected with clamping blocks 501, the clamping blocks 501 move inwards to clamp the left part of the probe tube 105 and are used for preventing the probe tube 105 from shaking along with the flow direction of crude oil in the process of contacting crude oil, a pushing frame 502 is slidably connected to the left part in the probe tube 105, the pushing frame 502 is positioned on the left side of the sealing air bag 106, the pushing frame 502 is matched with the sealing air bag 106, two swinging rods 503 are rotatably connected between the clamping blocks 501 and the pushing frame 502, the steel balls 203 are slidably connected with the annular handle 107, springs 504 are fixedly connected between the steel balls 203 and the annular handle 107, a clamping block 505 is fixedly connected to the annular handle 107, and one side, close to the clamping block 505, of the outer wall of the sampling shell 103 is sleeved with a clamping frame 506.
Because crude oil is in a flowing state, the probe tube 105 is easy to shake along with the flow direction of crude oil in the process of contacting with crude oil, so that impurities on the inner wall of the oil pipeline 1 can be knocked off, and therefore, the probe tube 105 needs to be limited and fixed during sampling, and the concrete operation is as follows: when the pull frame 201 slides to be in contact with the steel balls 203, the expansion degree of the sealing air bag 106 is insufficient to be in contact with the pushing frame 502, after the probe 105 passes through the sealing air bag 106 leftwards and enters the oil pipeline 1 to stop moving, a sampling person continues to pull the pull frame 201 towards the palm, the pull frame 201 inwards presses the steel balls 203, the spring 504 deforms, so that the pull frame 201 continues to move rightwards beyond the steel balls 203, the sealing air bag 106 continues to be inflated to be in contact with the pushing frame 502, the pushing frame 502 is pushed to move leftwards, and the clamping block 501 is pushed by the pushing frame 502 to inwards move to clamp the probe 105 through the swinging rod 503, so that the effect of fixing the left side of the probe 105 is achieved.
When the probe tube 105 passes through the sealing air bag 106 leftwards and enters the oil pipeline 1 to stop moving, the annular handle 107 better drives the clamping block 505 to be clamped into the clamping frame 506, so that the effect of fixing the right side of the probe tube 105 is achieved, and the fixing effect of the probe tube 105 is further enhanced.
Example 4: on the basis of embodiment 3, as shown in fig. 13, the electric heating wire 6 is further wound, the electric heating wire 6 is arranged at the right part in the sampling shell 103, the probe tube 105 penetrates through the wound electric heating wire 6, the battery 601 is fixedly connected in the sampling shell 103 in an embedded mode, and the battery 601 is used for supplying power to the electric heating wire 6.
Because most crude oil contains wax, in order to avoid wax crystallization to block the sampler, in the sampling process, the heating wire 6 is electrified, so that the sampler is in a proper heating environment, and the wax crystallized in the crude oil is melted.
The technical principles of the embodiments of the present invention are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present invention without undue burden, and those ways that are within the scope of the present invention.
Claims (8)
1. The utility model provides a crude oil pipeline sampler, including first link (101), first link (101) rigid coupling is in oil pipeline (1), the sample department of oil pipeline (1) is provided with switching valve (102), first link (101) rigid coupling has sample casing (103), sample casing (103) pass through the screw thread with switching valve (102) dismantlement formula is connected, sample section of thick bamboo (104) have been placed to first link (101), sample casing (103) with sample section of thick bamboo (104) dismantlement formula butt joint intercommunication, its characterized in that: the novel sampling device is characterized by further comprising a probe tube (105), wherein the probe tube (105) is slidably connected in the sampling shell (103), an oil inlet is formed in one side, close to the first connecting frame (101), of the probe tube (105), an oil outlet is formed in the middle of the probe tube (105), a sealing air bag (106) used for sealing a gap between the probe tube (105) and the sampling shell (103) is fixedly connected to one side, close to the opening and closing valve (102), of the sampling shell (103), an annular handle (107) is fixedly connected to the end, far away from the first connecting frame (101), of the probe tube (105), and the annular handle (107) is provided with an inflating assembly used for inflating the sealing air bag (106);
the sampling device is characterized by further comprising a threaded ring (3), wherein the threaded ring (3) is fixedly connected to one side, close to the sealing air bag (106), of the sampling shell (103), a second connecting frame (301) is connected to the outer wall of the probe tube (105) through a spline, a supporting frame (302) is fixedly connected to one side, far away from the threaded ring (3), of the outer wall of the probe tube (105), a threaded block (303) is rotatably connected to the supporting frame (302), the threaded block (303) is in threaded fit with the threaded ring (3), a screw rod (304) is fixedly connected to one end, close to the threaded block (303), of the second connecting frame (301), the screw rod (304) is in spline connection with the probe tube (105), a baffle ring (305) for blocking an oil inlet hole of the probe tube (105) is fixedly connected to the second connecting frame (301) through a spline;
still including go-between (4), go-between (4) rigid coupling in sample casing (103) keep away from outside of screw thread piece (303) one side, embedded rigid coupling has first inflator (401) of annular array in sample casing (103), first inflator (401) with go-between (4) intercommunication, annular array have roof-rack (402) between first inflator (401), roof-rack (402) with screw thread piece (303) cooperation, roof-rack (402) with rigid coupling has pressure spring (403) between first inflator (401), sample casing (103) are close to one side rigid coupling of sample section of thick bamboo (104) has second inflator (404), second inflator (404) with the intercommunication has first air duct (405) between go-between (4), the piston rod tip rigid coupling of second inflator (404) has and is used for the intercommunication connecting block (406) of probe tube (105), sample casing (103) sliding connection have and are used for stopping crude oil and pass through honeycomb duct (103) get into in sample section of thick bamboo (407) separate (408) in connecting block (408).
2. A crude oil pipeline sampler as claimed in claim 1 wherein: the inflating assembly comprises a third inflator (2), the third inflator (2) is fixedly connected to the annular handle (107), a pull frame (201) is fixedly connected to a piston rod of the third inflator (2), the pull frame (201) is slidably connected with the annular handle (107), and a second air guide pipe (202) is fixedly connected between the third inflator (2) and the sealing air bag (106).
3. A crude oil pipeline sampler as claimed in claim 2 wherein: the novel lifting device is characterized by further comprising steel balls (203) used for positioning the pull frame (201), wherein the steel balls (203) are arranged on the annular handle (107), and the steel balls (203) are matched with the pull frame (201).
4. A crude oil pipeline sampler as claimed in claim 3 wherein: one side of the connecting block (406) close to the exploring tube (105) is provided with a through hole corresponding to the oil outlet of the exploring tube (105), the outer wall of the sampling shell (103) is provided with a limit groove matched with the connecting block (406), and the oil outlet of the exploring tube (105) is positioned in the limit groove.
5. A crude oil pipeline sampler as in claim 4 wherein: the device also comprises an expansion block (409) for overpressure protection, wherein the expansion block (409) is communicated with one side of the first air guide pipe (405) close to the second air cylinder (404).
6. A crude oil pipeline sampler as in claim 5 wherein: the telescopic device is characterized by further comprising symmetrically distributed telescopic components (5), wherein the symmetrically distributed telescopic components (5) are fixedly connected to one side, close to the sealing air bag (106), of the sampling shell (103), clamping blocks (501) used for stabilizing the probe tube (105) are fixedly connected to telescopic ends of the telescopic components (5), pushing frames (502) are slidably connected to one side, close to the sealing air bag (106), of the probe tube (105), the pushing frames (502) are matched with the sealing air bag (106), swing rods (503) are rotationally connected between the clamping blocks (501) and the pushing frames (502), and springs (504) are fixedly connected between the steel balls (203) and the annular handles (107) in a sliding mode.
7. A crude oil pipeline sampler as in claim 6 wherein: the sampling device is characterized by further comprising a clamping block (505), wherein the clamping block (505) is fixedly connected to the annular handle (107), and a clamping frame (506) is sleeved on one side, close to the clamping block (505), of the outer wall of the sampling shell (103).
8. A crude oil pipeline sampler as in claim 7 wherein: the sampling device is characterized by further comprising a coiled heating wire (6), wherein the heating wire (6) is arranged in the sampling shell (103), the probe tube (105) penetrates through the coiled heating wire (6), and a battery (601) for supplying power to the heating wire (6) is fixedly connected in the sampling shell (103) in an embedded mode.
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CN202311330065.8A CN117091903B (en) | 2023-10-16 | 2023-10-16 | Crude oil pipeline sampler |
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