CN115479811A - Natural gas pipeline sampling device and method - Google Patents
Natural gas pipeline sampling device and method Download PDFInfo
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- CN115479811A CN115479811A CN202211220455.5A CN202211220455A CN115479811A CN 115479811 A CN115479811 A CN 115479811A CN 202211220455 A CN202211220455 A CN 202211220455A CN 115479811 A CN115479811 A CN 115479811A
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- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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Abstract
The invention discloses a natural gas pipeline sampling device and a method, and relates to the technical field of natural gas pipeline sampling, wherein the device comprises a natural gas pipeline, a sampling needle tube, a pre-sampling mechanism and a buffer decompression mechanism, wherein the upper end of the natural gas pipeline is vertically provided with an installation cylinder, the inner wall of the installation cylinder is horizontally provided with an installation plate, the installation plate is provided with a plurality of through holes, the side wall of the installation cylinder above the installation plate is provided with a fixed frame, and a rubber plug is arranged inside the fixed frame.
Description
Technical Field
The invention relates to the technical field of natural gas pipeline sampling, in particular to a natural gas pipeline sampling device and method.
Background
Natural gas is a gaseous fossil fuel consisting primarily of methane. It is mainly found in oil fields and natural gas fields, and also in coal seams in small quantities. Natural gas is also buried in underground closed geological structures like crude oil, and some natural gas and crude oil are stored in the same horizon, and some natural gas and crude oil exist separately.
When carrying the natural gas for special unit, need to sample the natural gas, for example steel mill etc. but the natural gas in the natural gas line has certain pressure, if do not carry out the decompression, just directly takes a sample, leads to the natural gas to spray the leakage very easily, influences the safety of taking a sample, and the not convenient to use user uses.
In view of the above, an improved natural gas pipeline sampling apparatus and method are now devised.
Disclosure of Invention
The present invention is directed to a natural gas pipeline sampling device and method to solve the above problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a natural gas line sampling device, includes natural gas line, sample needle tubing, pre-sampling mechanism and buffering decompression mechanism, the vertical installation section of thick bamboo of installing in natural gas line's upper end, natural gas line and the mutual intercommunication of an installation section of thick bamboo, horizontal installation has the mounting panel on the inner wall of an installation section of thick bamboo, it perforates to have seted up a plurality of on the mounting panel, install fixed frame on the installation section of thick bamboo lateral wall of mounting panel top, fixed frame and the mutual intercommunication of an installation section of thick bamboo, the internally mounted of fixed frame has the rubber buffer that is used for carrying out the shutoff to fixed frame, when the sample, the syringe needle of sample needle tubing passes the rubber buffer and enters into the inside of an installation section of thick bamboo and carries out the natural gas sample.
The pre-sampling mechanism is arranged above the mounting plate and used for extracting natural gas in the natural gas pipeline into the mounting cylinder above the mounting plate.
Buffering decompression mechanism sets up in the top of mounting panel for the natural gas that has extracted the mounting panel top cushions the decompression, reduces the pressure of natural gas, improves the security and the efficiency of sample operation.
As a further scheme of the invention: the pre-sampling mechanism comprises a first sealing block, the first sealing block is connected to the inner wall of the installation barrel above the installation plate in a sliding mode, the center of the upper end of the first sealing block is rotatably connected with a threaded rod, the upper end of the threaded rod vertically penetrates through the center of the top of the installation barrel and is provided with a rotating disc used for driving the threaded rod to rotate, the threaded rod is connected with the center of the top of the installation barrel through threads, an air vent is formed in the upper end of the installation barrel, a temporary storage assembly used for storing air inside the installation barrel above the first sealing block is arranged on the air vent, and a plugging assembly used for plugging the air vent after natural gas extraction is arranged at the lower end of the first sealing block.
As a still further scheme of the invention: the shutoff subassembly includes the solid fixed cylinder with perforation one-to-one, the vertical lower extreme of installing at first sealed piece of solid fixed cylinder, sliding connection has the third slider on the inner wall of solid fixed cylinder, the extension spring that is used for driving third slider rebound is installed to the upper end of third slider, the top at solid fixed cylinder is installed to the upper end of extension spring, first slide bar is installed to the lower extreme of third slider, the second sealed piece that is used for carrying out the shutoff to the perforation is installed to the bottom that the lower extreme of first slide bar passed solid fixed cylinder, fenestrate diameter is greater than the diameter of solid fixed cylinder, fenestrate diameter is less than the diameter of the sealed piece of second.
As a still further scheme of the invention: the subassembly of keeping in includes a plurality of storage cylinder, the storage cylinder is vertical to be installed on the air vent, the storage cylinder communicates with each other with the installation section of thick bamboo, sliding connection has the second slider on the inner wall of storage cylinder, the second spring that is used for promoting second slider downstream is installed to the upper end of second slider, the top at the storage cylinder is installed to the upper end of second spring.
The effect of subassembly of keeping in utilizes a storage section of thick bamboo to save the inside air of the installation section of thick bamboo of first sealed piece top, avoids the inside air of an installation section of thick bamboo and outside air exchange contact, avoids outside dust impurity to enter into the inside of an installation section of thick bamboo, guarantees the normal operating of installation section of thick bamboo internals.
As a still further scheme of the invention: buffering decompression mechanism includes a plurality of buffer cylinder, the buffer cylinder is circumference array horizontal installation on the installation section of thick bamboo lateral wall of fixed frame top, the buffer cylinder communicates with the installation section of thick bamboo each other, distance between buffer cylinder and the installation section of thick bamboo top is greater than the height of first sealed piece, distance between buffer cylinder and the mounting panel is greater than the length of fixed section of thick bamboo, and the purpose makes the sealed piece of second carry out the shutoff to the perforation earlier at the in-process of extraction natural gas, then the buffer cylinder is crossed to first sealed piece, and the natural gas enters into the inside of buffer cylinder, realizes the buffering decompression to the natural gas.
Sliding connection has first slider on the inner wall of buffer cylinder, the one end that the installation section of thick bamboo was kept away from to first slider is installed the second slide bar, the one end that first slider was kept away from to the second slide bar is passed the buffer cylinder and is installed the fixed plate, the cover has the first spring that is used for promoting first slider and is close to the installation section of thick bamboo on the lateral wall of second slide bar, install respectively on buffer cylinder and first slider at the both ends of first spring, the elastic strip is installed to one side of keeping away from the installation section of thick bamboo in buffer cylinder upper end, the fixture block that is used for preventing the fixed plate to keeping away from installation section of thick bamboo one side removal is installed to the lower extreme of elastic strip, the fixture block is hugged closely the one end of keeping away from the installation section of thick bamboo at the fixed plate.
Buffering decompression mechanism's effect is after the natural gas extraction finishes, upwards break off with the fingers and thumb the elasticity strip, make fixture block release fixed plate, under the effect of natural gas pressure, first slider promotes second slide bar and fixed plate and keeps away from the installation section of thick bamboo, and compress first spring, thereby make the natural gas enter into the inside of buffer tube, realize the decompression to the inside natural gas of installation section of thick bamboo, convenient to use sample needle tubing extracts the inside natural gas of installation section of thick bamboo, avoid because pressure is too big, lead to the condition of natural gas injection, the security and the efficiency of sampling operation are improved.
As a still further scheme of the invention: and a handle which is convenient for a worker to rotate the rotating disc is arranged on the side wall of the rotating disc.
As a still further scheme of the invention: and the side wall of the mounting cylinder is provided with reinforcing ribs for improving the structural strength of the mounting cylinder.
As a still further scheme of the invention: and sealing rings are arranged on the side walls of the first sliding block and the second sliding block.
As a still further scheme of the invention: the friction lug that the staff of being convenient for promoted the fixed plate is installed to the one end that the installation section of thick bamboo was kept away from to the fixed plate.
A use method of a natural gas pipeline sampling device comprises the following steps:
the method comprises the following steps: when the sample, the staff rotates the rolling disc, the rolling disc drives the threaded rod and rotates, under the effect of screw thread, threaded rod rebound, the threaded rod drives first sealed piece rebound, first sealed piece extracts the top of mounting panel with the inside natural gas of natural gas line through the perforation, simultaneously because blockking of fixture block, first slider can not take place to remove, the air of first sealed piece top can promote the second slider and remove, and enter into the inside of storage cylinder, first sealed piece drives fixed section of thick bamboo simultaneously, first slide bar and the sealed piece rebound of second, when first sealed piece is close the buffer cylinder, the sealed piece of second carries out the shutoff to the perforation earlier, then first sealed piece continues the rebound, first sealed piece drives fixed section of thick bamboo and removes, the tensile extension spring of fixed section of thick bamboo, move the top of installation cylinder to crossing the buffer cylinder until first sealed piece.
Step two: the staff upwards breaks the elasticity strip with the fingers and thumb, and the elasticity strip drives the fixture block rebound, removes blockking of fixture block to the fixed plate, and under the effect of natural gas pressure, the second slider promotes second slide bar and fixed plate and removes to the direction of keeping away from the installation section of thick bamboo to compress first spring, thereby make the natural gas enter into the inside of buffer cylinder, thereby realize the partial pressure to the natural gas.
Step three: the staff passes the rubber buffer with the syringe needle of sample needle tubing and inserts the inside of an installation section of thick bamboo, through the inside natural gas sample of a sample needle tubing extraction installation section of thick bamboo, and the staff promotes the fixed plate simultaneously and removes to an installation section of thick bamboo, and the fixed plate drives second slide bar and first slider and removes until the fixed plate is blockked the locking by the card once more to realize the sample of natural gas.
Compared with the prior art, the invention has the beneficial effects that:
1. the device is provided with the pre-sampling mechanism, the threaded rod is used for driving the first sealing block to move upwards, so that natural gas in the natural gas pipeline enters the mounting cylinder above the mounting plate through the through hole, meanwhile, the first sealing block drives the fixing cylinder, the first sliding rod and the second sealing block to move upwards, and finally, the second sealing block seals the through hole, so that the natural gas in the natural gas pipeline is prevented from continuously entering the mounting cylinder above the mounting plate, the pressure of the extracted natural gas is conveniently reduced, and the safety and the efficiency of sampling operation are improved.
2. The natural gas sampling device is provided with the buffering and pressure reducing mechanism, after natural gas is extracted, the elastic strip is pulled upwards to enable the fixture block to release the fixing plate, the first sliding block pushes the second sliding rod and the fixing plate to be away from the installation cylinder under the action of natural gas pressure, and the first spring is compressed, so that natural gas enters the inside of the buffer cylinder, the natural gas in the installation cylinder is reduced in pressure, the natural gas in the installation cylinder is extracted conveniently by using the sampling needle tube, the situation of natural gas injection caused by overlarge pressure is avoided, and the safety and the efficiency of sampling operation are improved.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure according to the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
Fig. 4 is a schematic structural view of the plugging assembly of the present invention.
Wherein: 1. a natural gas pipeline; 2. a first slide bar; 3. a fixed cylinder; 4. a first seal block; 5. a second slide bar; 6. a buffer cylinder; 7. a first slider; 8. a second slider; 9. a second spring; 10. a storage cylinder; 11. rotating the disc; 12. a threaded rod; 13. mounting the cylinder; 14. a sampling needle tube; 15. a rubber plug; 16. a fixing frame; 17. mounting a plate; 18. perforating; 19. a second seal block; 20. a first spring; 21. a fixing plate; 22. a clamping block; 23. an elastic strip; 24. a third slider; 25. a tension spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 4, in the embodiment of the invention, a natural gas pipeline sampling device includes a natural gas pipeline 1, a sampling needle tube 14, a pre-sampling mechanism and a buffering and pressure-reducing mechanism, an installation tube 13 is vertically installed at the upper end of the natural gas pipeline 1, the natural gas pipeline 1 is communicated with the installation tube 13, an installation plate 17 is horizontally installed on the inner wall of the installation tube 13, a plurality of through holes 18 are formed in the installation plate 17, a fixing frame 16 is installed on the side wall of the installation tube 13 above the installation plate 17, the fixing frame 16 is communicated with the installation tube 13, a rubber plug 15 for plugging the fixing frame 16 is installed inside the fixing frame 16, and during sampling, a needle head of the sampling needle tube 14 penetrates through the rubber plug 15 and enters the installation tube 13 to perform natural gas sampling.
The pre-sampling mechanism is arranged above the mounting plate 17 and used for extracting natural gas in the natural gas pipeline 1 into the mounting cylinder 13 above the mounting plate 17.
Buffering decompression mechanism sets up in the top of mounting panel 17 for buffer decompression is carried out to the natural gas that has extracted above mounting panel 17, reduces the pressure of natural gas, improves the security and the efficiency of sampling operation.
The pre-sampling mechanism comprises a first sealing block 4, the first sealing block 4 is connected to the inner wall of an installation barrel 13 above an installation plate 17 in a sliding mode, a threaded rod 12 is rotatably connected to the center position of the upper end of the first sealing block 4, a rotating disc 11 used for driving the threaded rod 12 to rotate is installed at the center position of the top of the installation barrel 13, the threaded rod 12 is connected with the center position of the top of the installation barrel 13 through threads, an air vent is formed in the upper end of the installation barrel 13, a temporary storage assembly used for storing air inside the installation barrel 13 above the first sealing block 4 is arranged on the air vent, and a blocking assembly used for blocking a through hole 18 after natural gas is extracted is arranged at the lower end of the first sealing block 4.
The shutoff subassembly includes the solid fixed cylinder 3 with perforation 18 one-to-one, the vertical lower extreme at first sealed piece 4 of installing of solid fixed cylinder 3, sliding connection has third slider 24 on the inner wall of solid fixed cylinder 3, extension spring 25 that is used for driving third slider 24 rebound is installed to the upper end of third slider 24, the top at solid fixed cylinder 3 is installed to extension spring 25's upper end, first slide bar 2 is installed to the lower extreme of third slider 24, the second sealed piece 19 that is used for carrying out the shutoff to perforation 18 is installed to the bottom that solid fixed cylinder 3 was passed to the lower extreme of first slide bar 2, the diameter of perforation 18 is greater than the diameter of solid fixed cylinder 3, the diameter of perforation 18 is less than the diameter of second sealed piece 19.
The effect of pre-sampling mechanism utilizes threaded rod 12 to drive first sealed piece 4 and upwards removes, thereby make the inside natural gas of natural gas line 1 enter into the installation section of thick bamboo 13 of mounting panel 17 top through perforation 18 inside, first sealed piece 4 drives fixed section of thick bamboo 3 simultaneously, first slide bar 2 and the sealed 19 rebound of second, finally make the sealed 19 of second carry out the shutoff to perforation 18, prevent that the inside natural gas of natural gas line 1 from continuing to enter into the installation section of thick bamboo 13 of mounting panel 17 top inside, be convenient for decompress the natural gas that has extracted, improve the security and the efficiency of sample operation.
The subassembly of keeping in includes a plurality of storage cylinder 10, storage cylinder 10 is vertical to be installed on the air vent, storage cylinder 10 and installation section of thick bamboo 13 communicate each other, sliding connection has second slider 8 on storage cylinder 10's the inner wall, second spring 9 that is used for promoting second slider 8 downstream is installed to the upper end of second slider 8, the top at storage cylinder 10 is installed to the upper end of second spring 9.
The effect of subassembly of keeping in is that the inside air of installation section of thick bamboo 13 of utilizing a storage cylinder 10 to first sealed piece 4 top is saved, avoids the inside air of installation section of thick bamboo 13 and outside air exchange contact, avoids outside dust impurity to enter into the inside of installation section of thick bamboo 13, guarantees the normal operating of installation section of thick bamboo 13 internals.
Buffering decompression mechanism includes a plurality of surge drum 6, surge drum 6 is circumference array horizontal installation on the installation section of thick bamboo 13 lateral wall of fixed frame 16 top, surge drum 6 communicates with installation section of thick bamboo 13 each other, the distance between surge drum 6 and the installation section of thick bamboo 13 top is greater than the height of first sealed piece 4, distance between surge drum 6 and the mounting panel 17 is greater than the length of fixed section of thick bamboo 3, and the purpose is at the in-process of extraction natural gas, makes the sealed piece 19 of second carry out the shutoff to perforation 18 earlier, then the surge drum 6 is crossed to first sealed piece 4, and the natural gas enters into the inside of surge drum 6, realizes the buffering decompression to the natural gas.
Sliding connection has first slider 7 on the inner wall of buffer cylinder 6, first slider 7 is kept away from the one end of installation section of thick bamboo 13 and is installed second slide bar 5, the one end that first slider 7 was kept away from to second slide bar 5 is passed buffer cylinder 6 and is installed fixed plate 21, the cover has first spring 20 that is used for promoting first slider 7 and is close to installation section of thick bamboo 13 on the lateral wall of second slide bar 5, install respectively on buffer cylinder 6 and first slider 7 at first spring 20's both ends, the one side of keeping away from installation section of thick bamboo 13 in buffer cylinder 6 upper end is installed elastic strip 23, the fixture block 22 that is used for preventing fixed plate 21 to keeping away from installation section of thick bamboo 13 one side movement is installed to the lower extreme of elastic strip 23, fixture block 22 hugs closely at the one end that installation section of thick bamboo 13 was kept away from to fixed plate 21.
Buffering decompression mechanism's effect is after the natural gas extraction finishes, upwards break elastic strip 23 off with the fingers and thumb, make fixture block 22 release fixed plate 21, under the effect of natural gas pressure, first slider 7 promotes second slide bar 5 and fixed plate 21 and keeps away from installation section of thick bamboo 13, and compress first spring 20, thereby make the natural gas enter into the inside of buffer tube 6, the realization is to the decompression of the inside natural gas of installation section of thick bamboo 13, convenient to use sample needle tubing 14 extracts the inside natural gas of installation section of thick bamboo 13, avoid because pressure is too big, lead to the condition of natural gas injection, improve the security and the efficiency of sample operation.
According to the natural gas pipeline sampling device disclosed by the invention, during sampling, a worker rotates the rotating disc 11, the rotating disc 11 drives the threaded rod 12 to rotate, the threaded rod 12 moves upwards under the action of threads, the threaded rod 12 drives the first sealing block 4 to move upwards, the first sealing block 4 extracts natural gas in the natural gas pipeline 1 to the upper side of the mounting plate 17 through the through hole 18, meanwhile, due to the blocking of the clamping block 22, the first sliding block 7 cannot move, air above the first sealing block 4 can push the second sliding block 8 to move and enter the storage cylinder 10, meanwhile, the first sealing block 4 drives the fixed cylinder 3, the first sliding rod 2 and the second sealing block 19 to move upwards, when the first sealing block 4 approaches the buffer cylinder 6, the through hole 18 is firstly blocked by the second sealing block 19, then the first sealing block 4 continues to move upwards, the first sealing block 4 drives the fixed cylinder 3 to move, and the fixed cylinder 3 stretches the tension spring 25 until the first sealing block 4 moves to the top of the mounting cylinder 13 beyond the buffer cylinder 6.
Then the staff breaks the elastic strip 23 upwards, the elastic strip 23 drives the clamping block 22 to move upwards, the blocking of the clamping block 22 to the fixing plate 21 is removed, the second sliding block 8 pushes the second sliding rod 5 and the fixing plate 21 to move towards the direction far away from the installation barrel 13 under the action of the natural gas pressure, and the first spring 20 is compressed, so that the natural gas enters the inside of the buffer barrel 6, and the partial pressure of the natural gas is realized.
Then the staff passes the syringe needle of sample needle tubing 14 and inserts the inside of an installation section of thick bamboo 13 through rubber buffer 15, through the inside natural gas sample of a sampling needle tubing 14 extraction installation section of thick bamboo 13, the staff promotes fixed plate 21 and removes to an installation section of thick bamboo 13 simultaneously, and fixed plate 21 drives second slide bar 5 and first slider 7 and removes until fixed plate 21 is blockked the locking by fixture block 22 once more to realize the sample of natural gas.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Claims (10)
1. The utility model provides a natural gas line sampling device, includes natural gas line (1), sample needle tubing (14), pre-sampling mechanism and buffering decompression mechanism, a serial communication port, the vertical installation section of thick bamboo (13) of installing in the upper end of natural gas line (1), natural gas line (1) and installation section of thick bamboo (13) communicate each other, horizontal installation has mounting panel (17) on the inner wall of installation section of thick bamboo (13), a plurality of perforation (18) have been seted up on mounting panel (17), install fixed frame (16) on the installation section of thick bamboo (13) lateral wall above mounting panel (17), fixed frame (16) and installation section of thick bamboo (13) communicate each other, the internally mounted of fixed frame (16) has rubber buffer (15) that are used for carrying out the shutoff to fixed frame (16), when the sample, the syringe needle of sample needle tubing (14) passes rubber buffer (15) and enters into the inside of installation section of thick bamboo (13) and carries out the natural gas sampling;
the pre-sampling mechanism is arranged above the mounting plate (17) and is used for pumping natural gas in the natural gas pipeline (1) into the mounting cylinder (13) above the mounting plate (17);
the buffering and pressure reducing mechanism is arranged above the mounting plate (17) and is used for buffering and reducing the pressure of the extracted natural gas above the mounting plate (17).
2. The natural gas pipeline sampling device of claim 1, wherein the pre-sampling mechanism comprises a first sealing block (4), the first sealing block (4) is slidably connected to the inner wall of an installation cylinder (13) above an installation plate (17), a threaded rod (12) is rotatably connected to the upper end center of the first sealing block (4), the upper end of the threaded rod (12) vertically penetrates through the top center of the installation cylinder (13) and is provided with a rotating disc (11) for driving the threaded rod (12) to rotate, the threaded rod (12) is in threaded connection with the top center of the installation cylinder (13), an air vent is formed in the upper end of the installation cylinder (13), a temporary storage assembly for storing air inside the installation cylinder (13) above the first sealing block (4) is arranged on the air vent, and a blocking assembly for blocking the through hole (18) after natural gas extraction is arranged at the lower end of the first sealing block (4).
3. The natural gas pipeline sampling device according to claim 2, wherein the blocking assembly comprises a fixed cylinder (3) corresponding to the through holes (18) one by one, the fixed cylinder (3) is vertically installed at the lower end of the first sealing block (4), a third sliding block (24) is connected to the inner wall of the fixed cylinder (3) in a sliding mode, a tension spring (25) used for driving the third sliding block (24) to move upwards is installed at the upper end of the third sliding block (24), the upper end of the tension spring (25) is installed at the top of the fixed cylinder (3), the first sliding rod (2) is installed at the lower end of the third sliding block (24), the lower end of the first sliding rod (2) penetrates through the bottom of the fixed cylinder (3) and is provided with a second sealing block (19) used for blocking the through holes (18), the diameter of the through holes (18) is larger than that of the fixed cylinder (3), and the diameter of the through holes (18) is smaller than that of the second sealing block (19).
4. A natural gas pipeline sampling device according to claim 3, wherein the temporary storage assembly comprises a plurality of storage cylinders (10), the storage cylinders (10) are vertically installed on the vent holes, the storage cylinders (10) are communicated with the installation cylinder (13), the inner wall of the storage cylinder (10) is slidably connected with a second sliding block (8), a second spring (9) for pushing the second sliding block (8) to move downwards is installed at the upper end of the second sliding block (8), and the upper end of the second spring (9) is installed at the top of the storage cylinder (10).
5. The natural gas pipeline sampling device according to claim 4, wherein the buffer decompression mechanism comprises a plurality of buffer cylinders (6), the buffer cylinders (6) are horizontally arranged on the side wall of the installation cylinder (13) above the fixed frame (16) in a circumferential array, the buffer cylinders (6) are communicated with the installation cylinder (13), the distance between the buffer cylinders (6) and the top of the installation cylinder (13) is greater than the height of the first sealing block (4), and the distance between the buffer cylinders (6) and the installation plate (17) is greater than the length of the fixed cylinder (3);
sliding connection has first slider (7) on the inner wall of buffer cylinder (6), first slider (7) are kept away from the one end of installation section of thick bamboo (13) and are installed second slide bar (5), the one end that first slider (7) were kept away from in second slide bar (5) is passed buffer cylinder (6) and is installed fixed plate (21), the cover has first spring (20) that is used for promoting first slider (7) and is close to installation section of thick bamboo (13) on the lateral wall of second slide bar (5), install respectively on buffer cylinder (6) and first slider (7) at the both ends of first spring (20), install elastic strip (23) in one side of keeping away from installation section of thick bamboo (13) on buffer cylinder (6), fixture block (22) that are used for preventing fixed plate (21) to keeping away from installation section of thick bamboo (13) one side removal are installed to the lower extreme of elastic strip (23), fixture block (22) hug closely the one end of keeping away from installation section of thick bamboo (13) at fixed plate (21).
6. A gas pipeline sampling device as claimed in claim 2, wherein a handle for the worker to rotate the rotary disk (11) is mounted on the side wall of the rotary disk (11).
7. The natural gas pipeline sampling device according to claim 1, wherein a reinforcing rib for improving the structural strength of the installation cylinder (13) is installed on the side wall of the installation cylinder (13).
8. A natural gas pipeline sampling device according to claim 5, characterized in that the side walls of the first slider (7) and the second slider (8) are provided with sealing rings.
9. A natural gas pipeline sampling device according to claim 5, wherein the end of the fixing plate (21) far away from the mounting cylinder (13) is provided with a friction lug which is convenient for workers to push the fixing plate (21).
10. A method of using a natural gas pipeline sampling device according to any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps: when sampling, a worker rotates the rotating disc (11), the rotating disc (11) drives the threaded rod (12) to rotate, under the action of threads, the threaded rod (12) moves upwards, the threaded rod (12) drives the first sealing block (4) to move upwards, the first sealing block (4) extracts natural gas in the natural gas pipeline (1) to the upper side of the mounting plate (17) through the through hole (18), meanwhile, due to the blocking of the clamping block (22), the first sliding block (7) cannot move, air above the first sealing block (4) can push the second sliding block (8) to move and enters the storage cylinder (10), meanwhile, the first sealing block (4) drives the fixing cylinder (3), the first sliding rod (2) and the second sealing block (19) to move upwards, when the first sealing block (4) is close to the buffer cylinder (6), the second sealing block (19) firstly plugs the through hole (18), then the first sealing block (4) continues to move upwards, the first sealing block (4) drives the fixing cylinder (3) to move, the fixing cylinder (3) moves to stretch to the top of the buffer cylinder (13);
step two: the worker upwards breaks the elastic strip (23), the elastic strip (23) drives the clamping block (22) to upwards move, the blocking of the clamping block (22) to the fixing plate (21) is removed, under the action of natural gas pressure, the second sliding block (8) pushes the second sliding rod (5) and the fixing plate (21) to move towards the direction far away from the installation barrel (13), and the first spring (20) is compressed, so that natural gas enters the inside of the buffer barrel (6), and partial pressure of the natural gas is achieved;
step three: the staff passes rubber buffer (15) with the syringe needle of sample needle tubing (14) and inserts the inside of installation section of thick bamboo (13), through the inside natural gas sample of sample needle tubing (14) extraction installation section of thick bamboo (13), simultaneously the staff promotes fixed plate (21) and removes to installation section of thick bamboo (13), fixed plate (21) drive second slide bar (5) and first slider (7) remove, block the locking by fixture block (22) again until fixed plate (21), thereby realize the sample of natural gas.
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| CN202211220455.5A CN115479811A (en) | 2022-10-07 | 2022-10-07 | Natural gas pipeline sampling device and method |
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| CN202211220455.5A CN115479811A (en) | 2022-10-07 | 2022-10-07 | Natural gas pipeline sampling device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807915A (en) * | 2023-02-06 | 2023-03-17 | 陇东学院 | Natural gas line sampling device |
| CN117074091A (en) * | 2023-10-16 | 2023-11-17 | 烟台杰科检测服务有限公司 | Random blind detection sampling device for food detection |
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2022
- 2022-10-07 CN CN202211220455.5A patent/CN115479811A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807915A (en) * | 2023-02-06 | 2023-03-17 | 陇东学院 | Natural gas line sampling device |
| CN115807915B (en) * | 2023-02-06 | 2023-04-21 | 陇东学院 | Natural gas pipeline sampling device |
| CN117074091A (en) * | 2023-10-16 | 2023-11-17 | 烟台杰科检测服务有限公司 | Random blind detection sampling device for food detection |
| CN117074091B (en) * | 2023-10-16 | 2023-12-19 | 烟台杰科检测服务有限公司 | Random blind detection sampling device for food detection |
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