CN118746473A - A natural gas sampling system - Google Patents
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- 238000005070 sampling Methods 0.000 title claims abstract description 160
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000003345 natural gas Substances 0.000 title claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 53
- 230000013011 mating Effects 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 6
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
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- 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
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
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Abstract
本发明涉及天然气取样技术领域，具体为一种天然气取样系统，包括输送管道，所述输送管道上固定设置有取样定位筒，所述取样定位筒的两端对称固定设置有配合定位板，所述配合定位板上开设有连接定位槽，且配合定位板的两侧对称开设有插接锁定槽，所述取样定位筒的内部固定设置有配合内承板，在进行天然气的取样时可以从输送管道的内部进行取样，保证了取样检测结果的准确性，同时在取样时可以实现取样筒与输送管道直接的快速连接，无需进行繁杂的安装操作，方便了工作人员的同时也提升了取样的工作效率，且取样操作简单只需往下推动配合驱动板即可实现快速取样。
The present invention relates to the technical field of natural gas sampling, and specifically to a natural gas sampling system, comprising a delivery pipeline, wherein a sampling positioning cylinder is fixedly arranged on the delivery pipeline, and matching positioning plates are symmetrically fixedly arranged at both ends of the sampling positioning cylinder, a connecting positioning groove is provided on the matching positioning plate, and plug-in locking grooves are symmetrically provided on both sides of the matching positioning plate, and a matching inner supporting plate is fixedly arranged inside the sampling positioning cylinder. When sampling natural gas, sampling can be carried out from the inside of the delivery pipeline, thereby ensuring the accuracy of the sampling detection results. At the same time, when sampling, the sampling cylinder and the delivery pipeline can be directly and quickly connected without complicated installation operations, which is convenient for the staff and also improves the sampling work efficiency. The sampling operation is simple, and only the matching driving plate needs to be pushed down to achieve quick sampling.
Description
技术领域Technical Field
本发明涉及天然气取样技术领域，具体为一种天然气取样系统。The invention relates to the technical field of natural gas sampling, in particular to a natural gas sampling system.
背景技术Background Art
天然气在开采的过程中为了了解到天然气的成分和纯度等情况，需要对天然气进行取样检测，在进行取样时需要将取样装置与天燃气输送管道上的取样口进行对接取样的，打开阀门使得天然气通过取样口进入到取样装置中，这样传统的取样方式对天然气的检测是具有一定的不利影响的，因为天然气管道内壁的吸收或吸附作用会引起记忆效应，当流体的实际浓度降低时，又会发生解吸现象，使样品的组成发生变化，特别是对微量组分进行分析时(如微量水、氧、一氧化碳、乙炔等)影响尤为显著，所以，取样时无法伸入到天然气管道的内部进行取样，导致对天然气的检测结果影响较大，使得对微量组分检测的准确性较低，另外，在进行取样时不能够实现取样装置与输送管道的快速便捷连接，影响到取样的工作效率，同时也使得工作人员的操作较为麻烦。In order to understand the composition and purity of natural gas during the exploitation process, it is necessary to sample and test the natural gas. When sampling, the sampling device needs to be connected to the sampling port on the natural gas transmission pipeline for sampling, and the valve is opened to allow the natural gas to enter the sampling device through the sampling port. This traditional sampling method has a certain adverse effect on the detection of natural gas, because the absorption or adsorption of the inner wall of the natural gas pipeline will cause a memory effect. When the actual concentration of the fluid decreases, desorption will occur again, causing the composition of the sample to change, especially when analyzing trace components (such as trace water, oxygen, carbon monoxide, acetylene, etc.). The effect is particularly significant. Therefore, it is impossible to extend into the interior of the natural gas pipeline for sampling, resulting in a greater impact on the detection results of natural gas, making the accuracy of the detection of trace components low. In addition, when sampling, the sampling device cannot be quickly and conveniently connected to the transmission pipeline, which affects the sampling efficiency and makes the operation of the staff more troublesome.
发明内容Summary of the invention
本发明的目的在于提供一种天然气取样系统，以解决上述背景技术中提出的问题。The object of the present invention is to provide a natural gas sampling system to solve the problems raised in the above background technology.
为实现上述目的，本发明提供如下技术方案：To achieve the above object, the present invention provides the following technical solutions:
一种天然气取样系统，包括输送管道，所述输送管道上固定设置有取样定位筒，所述取样定位筒的两端对称固定设置有配合定位板，所述配合定位板上开设有连接定位槽，且配合定位板的两侧对称开设有插接锁定槽，所述取样定位筒的内部固定设置有配合内承板，所述配合内承板上固定设置有延伸内插筒，所述延伸内插筒插接在输送管道的内部，且配合内承板上开设有密封插接环槽，且延伸内插筒的上筒口处于密封插接环槽的内侧，且延伸内插筒的下端开设有安装密封环腔，所述配合内承板的下端面上对称固定设置有配合支撑载杆，所述配合支撑载杆处于输送管道的内部，所述延伸内插筒的下端安装有封闭贴合板，所述封闭贴合板上固定设置有密封配合筒，所述封闭贴合板的上端面与延伸内插筒的下端面相接触，所述密封配合筒插接在安装密封环腔中，且密封配合筒上开设有取样连接孔，所述封闭贴合板的两端对称固定设置有支撑配合板，所述支撑配合板上开设有支撑配合连孔，所述支撑配合连孔中插接有配合支撑载杆，所述配合支撑载杆上套接有第一配合弹簧，在进行天然气取样时，输送管道上安装有插入式便捷取样机构。A natural gas sampling system comprises a delivery pipeline, wherein a sampling positioning cylinder is fixedly arranged on the delivery pipeline, and matching positioning plates are symmetrically fixedly arranged at both ends of the sampling positioning cylinder, a connecting positioning groove is provided on the matching positioning plate, and plug-in locking grooves are symmetrically provided on both sides of the matching positioning plate, a matching inner support plate is fixedly arranged inside the sampling positioning cylinder, an extended inner insert cylinder is fixedly arranged on the matching inner support plate, the extended inner insert cylinder is plugged into the interior of the delivery pipeline, and a sealing plug-in ring groove is provided on the matching inner support plate, and the upper tube mouth of the extended inner insert cylinder is located on the inner side of the sealing plug-in ring groove, and a sealing ring cavity for installing is provided at the lower end of the extended inner insert cylinder, and a matching inner support plate is symmetrically fixedly arranged on the lower end surface of the matching inner support plate There is a matching support carrier rod, which is located inside the conveying pipeline, and a closed fitting plate is installed at the lower end of the extended inner insert tube, and a sealing matching tube is fixedly arranged on the closed fitting plate, and the upper end surface of the closed fitting plate contacts the lower end surface of the extended inner insert tube, and the sealing matching tube is inserted in the installation sealing ring cavity, and a sampling connecting hole is provided on the sealing matching tube, and support matching plates are symmetrically fixed at both ends of the closed fitting plate, and support matching connecting holes are provided on the support matching plate, and a matching support carrier rod is inserted in the support matching connecting hole, and a first matching spring is sleeved on the matching support carrier rod, and when natural gas sampling is performed, an insertable convenient sampling mechanism is installed on the conveying pipeline.
优选的，所述插入式便捷取样机构包括取样筒、配合驱动板、衔接活动板和配合活动板，所述取样筒的下端固定设置有密封环套，且取样筒在进行取样时部分插接在取样定位筒中，密封环套插接在密封插接环槽中。Preferably, the insertable convenient sampling mechanism includes a sampling barrel, a matching drive plate, a connecting movable plate and a matching movable plate, a sealing ring sleeve is fixedly provided at the lower end of the sampling barrel, and the sampling barrel is partially inserted into the sampling positioning barrel when sampling, and the sealing ring sleeve is inserted into the sealing plug-in ring groove.
优选的，所述密封环套的内侧固定设置有伸入取样管，所述伸入取样管与取样筒相贯通，且伸入取样管的下端开设有锥形配合通道，所述取样筒的上端开设有连接活动孔，且取样筒的上侧两端对称固定设置有配合载板。Preferably, a sampling tube is fixedly arranged on the inner side of the sealing ring sleeve, the sampling tube is connected with the sampling barrel, and a conical matching channel is opened at the lower end of the sampling tube, a connecting movable hole is opened at the upper end of the sampling barrel, and matching carrier plates are symmetrically fixedly arranged at both ends of the upper side of the sampling barrel.
优选的，所述配合载板上固定设置有定位承载柱，所述定位承载柱上开设有限位通道，且定位承载柱的两侧对称固定设置有支撑载块，所述支撑载块上固定设置有配合载杆。Preferably, a positioning bearing column is fixedly provided on the matching carrier plate, a limited position channel is provided on the positioning bearing column, and supporting bearing blocks are symmetrically fixedly provided on both sides of the positioning bearing column, and a matching bearing rod is fixedly provided on the supporting bearing block.
优选的，所述取样筒上安装有配合驱动板，所述配合驱动板的上端固定设置有固定承载柱，所述固定承载柱的上端固定设置有支撑配合杆，所述支撑配合杆的上端固定设置有限制顶板，且配合驱动板的两端对称开设有安装内槽，所述安装内槽中开设有限位插孔。Preferably, a matching drive plate is installed on the sampling tube, a fixed bearing column is fixedly provided on the upper end of the matching drive plate, a supporting matching rod is fixedly provided on the upper end of the fixed bearing column, a limiting top plate is fixedly provided on the upper end of the supporting matching rod, and installation inner grooves are symmetrically provided at both ends of the matching drive plate, and a limited position socket is provided in the installation inner groove.
优选的，所述配合驱动板的下端固定设置有承载内插杆，所述承载内插杆穿过连接活动孔插接在取样筒的内部，且承载内插杆上套接有第二配合弹簧，承载内插杆上固定设置有配合内插塞板，所述配合内插塞板插接在取样筒中，且承载内插杆的下端还固定设置有锥形封堵块，所述锥形封堵块插接在锥形配合通道中。Preferably, a load-bearing inner plug rod is fixedly provided at the lower end of the mating driving plate, and the load-bearing inner plug rod passes through the connecting movable hole and is inserted into the interior of the sampling barrel, and a second mating spring is sleeved on the load-bearing inner plug rod, and a mating inner plug plate is fixedly provided on the load-bearing inner plug rod, and the mating inner plug plate is inserted into the sampling barrel, and a conical sealing block is also fixedly provided at the lower end of the load-bearing inner plug rod, and the conical sealing block is inserted in the conical mating channel.
优选的，所述配合驱动板的下侧两端对称固定设置有插接连杆，所述插接连杆插接在限位通道中，且插接连杆的下端固定设置有配合连接底块，所述配合连接底块上铰接有衔接配合连杆。Preferably, plug-in connecting rods are symmetrically fixedly provided at both ends of the lower side of the mating driving plate, the plug-in connecting rods are inserted in the limiting channel, and a mating connecting bottom block is fixedly provided at the lower end of the plug-in connecting rod, and a mating connecting rod is hinged on the mating connecting bottom block.
优选的，所述配合驱动板上安装有衔接活动板，所述衔接活动板上开设有套接插孔，所述套接插孔中插接有支撑配合杆，且衔接活动板的两端对称铰接有连接活动杆，所述连接活动杆的下端铰接有限制配合块。Preferably, a connecting movable plate is installed on the mating driving plate, a socket socket is opened on the connecting movable plate, a supporting matching rod is inserted in the socket socket, and connecting movable rods are symmetrically hinged at both ends of the connecting movable plate, and a limiting matching block is hinged at the lower end of the connecting movable rod.
优选的，所述限制配合块插接在安装内槽中，且限制配合块上固定设置有凸出连块，所述凸出连块上铰接有连接活动杆，且限制配合块上还固定设置有限位插接杆，所述限位插接杆插接在限位插孔中。Preferably, the limiting fitting block is inserted in the installation inner groove, and a protruding connecting block is fixedly provided on the limiting fitting block, a connecting movable rod is hinged on the protruding connecting block, and a limiting plug-in rod is also fixedly provided on the limiting fitting block, and the limiting plug-in rod is inserted in the limiting socket.
优选的，所述取样筒的两端对称安装有配合活动板，所述配合活动板上开设有限制插接通道，所述限制插接通道的下侧固定设置有连接底板，所述连接底板的两头对称开设有滑动配合孔，所述滑动配合孔中插接有配合载杆，且连接底板的下端固定设置有下垂连块，所述下垂连块的下端固定设置有配合定位载板，所述配合定位载板的两侧对称固定设置有配合定位插条，且配合定位载板与衔接配合连杆进行铰接。Preferably, matching movable plates are symmetrically installed at both ends of the sampling tube, a limiting plug-in channel is opened on the matching movable plate, a connecting base plate is fixedly arranged on the lower side of the limiting plug-in channel, sliding matching holes are symmetrically opened at both ends of the connecting base plate, matching carrier rods are inserted in the sliding matching holes, and a hanging connecting block is fixedly arranged at the lower end of the connecting base plate, a matching positioning carrier plate is fixedly arranged at the lower end of the hanging connecting block, matching positioning strips are symmetrically fixedly arranged on both sides of the matching positioning carrier plate, and the matching positioning carrier plate is hinged to the connecting matching connecting rod.
与现有技术相比，本发明的有益效果是：本发明结构设置合理，功能性强，具有以下优点：Compared with the prior art, the invention has the following advantages:
1.在进行天然气的取样时可以从输送管道的内部进行取样，保证了取样检测结果的准确性，同时在取样时可以实现取样筒与输送管道直接的快速连接，无需进行繁杂的安装操作，方便了工作人员的同时也提升了取样的工作效率，且取样操作简单只需往下推动配合驱动板即可实现快速取样。1. When sampling natural gas, sampling can be carried out from the inside of the transmission pipeline, ensuring the accuracy of the sampling test results. At the same time, the sampling tube can be directly and quickly connected to the transmission pipeline during sampling, without the need for complicated installation operations, which is convenient for the staff and also improves the sampling efficiency. The sampling operation is simple, and only needs to push down the drive plate to achieve rapid sampling.
2.在输送管道的内部设置有封闭贴合板，可以对延伸内插筒起到封闭的作用，保证了输送管道不取样时的密封性，在进行取样时将伸入取样管插接到延伸内插筒中与封闭贴合板相接触，同时使得密封环套插接到密封插接环槽中保证取样过程中的密封性，然后往下推动配合驱动板即可带动封闭贴合板往下移动，使得取样连接孔显露在输送管道的内部，进而实现取样，取样完成后释放配合驱动板即可实现输送管道的自动封闭，同时在取样筒的内部会产生一定的负压，可以将延伸内插筒中存留的天然气吸收进去，避免天然气的泄漏。2. A closed fitting plate is provided inside the conveying pipeline, which can seal the extended inner insert tube and ensure the sealing of the conveying pipeline when no sampling is taken. When sampling, the sampling tube is inserted into the extended inner insert tube to contact with the closed fitting plate, and the sealing ring sleeve is inserted into the sealing plug-in ring groove to ensure the sealing during the sampling process. Then, the matching drive plate is pushed downward to drive the closed fitting plate to move downward, so that the sampling connection hole is exposed inside the conveying pipeline, thereby realizing sampling. After the sampling is completed, the matching drive plate is released to realize the automatic closure of the conveying pipeline. At the same time, a certain negative pressure will be generated inside the sampling tube, which can absorb the natural gas retained in the extended inner insert tube to avoid leakage of natural gas.
3.另外，在取样时推动配合驱动板的时候，可以带动配合活动板进行移动进而使得配合定位插条插接到插接锁定槽中，实现取样筒与输送管道之间的固定连接，保证了取样时的稳定性，同时在配合活动板的作用下可以实现配合驱动板的自动锁定，保证了取样筒与输送管道连接的牢固性，取样完成后往上拉动衔接活动板即可实现配合驱动板的解锁，进而实现取样筒的解锁。3. In addition, when the matching drive plate is pushed during sampling, the matching movable plate can be driven to move so that the matching positioning strip can be inserted into the plug-in locking groove, thereby realizing a fixed connection between the sampling tube and the conveying pipeline, ensuring stability during sampling. At the same time, under the action of the matching movable plate, the matching drive plate can be automatically locked, ensuring the firmness of the connection between the sampling tube and the conveying pipeline. After the sampling is completed, the matching drive plate can be unlocked by pulling up the connecting movable plate, thereby unlocking the sampling tube.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为输送管道与取样筒的装配示意图。FIG. 1 is a schematic diagram of the assembly of the delivery pipeline and the sampling tube.
图2为图1中A处的放大示意图。FIG. 2 is an enlarged schematic diagram of point A in FIG. 1 .
图3为输送管道的结构示意图。FIG. 3 is a schematic diagram of the structure of the conveying pipeline.
图4为输送管道的内部结构示意图。FIG. 4 is a schematic diagram of the internal structure of the conveying pipeline.
图5为封闭贴合板的结构示意图。FIG. 5 is a schematic diagram of the structure of a closed laminating plate.
图6为取样筒的装配示意图。FIG. 6 is a schematic diagram of the assembly of the sampling tube.
图7为取样筒的半剖结构示意图。FIG. 7 is a schematic diagram of a half-section structure of the sampling tube.
图8为配合驱动板的结构示意图。FIG. 8 is a schematic diagram of the structure of the matching driving plate.
图中：1、输送管道；11、取样定位筒；12、配合定位板；13、连接定位槽；14、插接锁定槽；15、配合内承板；16、延伸内插筒；17、密封插接环槽；18、安装密封环腔；19、配合支撑载杆；2、封闭贴合板；21、密封配合筒；22、取样连接孔；23、支撑配合板；24、支撑配合连孔；25、第一配合弹簧；3、取样筒；31、密封环套；32、伸入取样管；33、锥形配合通道；34、连接活动孔；35、配合载板；36、定位承载柱；37、限位通道；38、支撑载块；39、配合载杆；4、配合驱动板；41、固定承载柱；42、支撑配合杆；43、限制顶板；44、安装内槽；45、限位插孔；46、承载内插杆；461、第二配合弹簧；47、配合内插塞板；48、锥形封堵块；49、插接连杆；491、配合连接底块；492、衔接配合连杆；5、衔接活动板；51、套接插孔；52、连接活动杆；53、限制配合块；54、凸出连块；55、限位插接杆；6、配合活动板；61、限制插接通道；62、连接底板；63、滑动配合孔；64、下垂连块；65、配合定位载板；66、配合定位插条。In the figure: 1. conveying pipeline; 11. sampling positioning cylinder; 12. matching positioning plate; 13. connecting positioning groove; 14. plug-in locking groove; 15. matching inner bearing plate; 16. extending inner insert cylinder; 17. sealing plug-in ring groove; 18. installing sealing ring cavity; 19. matching supporting rod; 2. closing fitting plate; 21. sealing matching cylinder; 22. sampling connecting hole; 23. supporting matching plate; 24. supporting matching connecting hole; 25. first matching spring; 3. sampling cylinder; 31. sealing ring sleeve; 32. extending into sampling tube; 33. conical matching channel; 34. connecting movable hole; 35. matching carrier plate; 36. positioning bearing column; 37. limiting channel; 38. supporting carrier block; 39. matching carrier rod; 4. Matching drive plate; 41. Fixed bearing column; 42. Support matching rod; 43. Limiting top plate; 44. Installing inner groove; 45. Limiting plug hole; 46. Bearing inner plug rod; 461. Second matching spring; 47. Matching inner plug plate; 48. Conical blocking block; 49. Connecting connecting rod; 491. Matching connecting bottom block; 492. Connecting matching connecting rod; 5. Connecting movable plate; 51. Sleeve plug hole; 52. Connecting movable rod; 53. Limiting matching block; 54. Protruding connecting block; 55. Limiting plug rod; 6. Matching movable plate; 61. Limiting plug-in channel; 62. Connecting bottom plate; 63. Sliding matching hole; 64. Drooping connecting block; 65. Matching positioning carrier plate; 66. Matching positioning insert strip.
具体实施方式DETAILED DESCRIPTION
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
请参阅图1至图8，本发明提供一种技术方案：Please refer to Figures 1 to 8, the present invention provides a technical solution:
一种天然气取样系统，包括输送管道1，输送管道1上固定设置有取样定位筒11，取样定位筒11的两端对称固定设置有配合定位板12，配合定位板12上开设有连接定位槽13，且配合定位板12的两侧对称开设有插接锁定槽14，取样定位筒11的内部固定设置有配合内承板15，配合内承板15上固定设置有延伸内插筒16，延伸内插筒16插接在输送管道1的内部，且配合内承板15上开设有密封插接环槽17，且延伸内插筒16的上筒口处于密封插接环槽17的内侧，且延伸内插筒16的下端开设有安装密封环腔18，配合内承板15的下端面上对称固定设置有配合支撑载杆19，配合支撑载杆19处于输送管道1的内部，延伸内插筒16的下端安装有封闭贴合板2，封闭贴合板2上固定设置有密封配合筒21，封闭贴合板2的上端面与延伸内插筒16的下端面相接触，密封配合筒21插接在安装密封环腔18中，起到密封的作用，且密封配合筒21上开设有取样连接孔22，封闭贴合板2的两端对称固定设置有支撑配合板23，支撑配合板23上开设有支撑配合连孔24，支撑配合连孔24中插接有配合支撑载杆19，配合支撑载杆19上套接有第一配合弹簧25，且第一配合弹簧25的两端分别焊接在配合内承板15的下端面上和支撑配合板23上，在进行天然气取样时，输送管道1上安装有插入式便捷取样机构。A natural gas sampling system includes a delivery pipeline 1, on which a sampling positioning cylinder 11 is fixedly provided, and matching positioning plates 12 are symmetrically fixedly provided at both ends of the sampling positioning cylinder 11, and a connecting positioning groove 13 is provided on the matching positioning plate 12, and plug-in locking grooves 14 are symmetrically provided on both sides of the matching positioning plate 12, and a matching inner support plate 15 is fixedly provided inside the sampling positioning cylinder 11, and an extended inner insert cylinder 16 is fixedly provided on the matching inner support plate 15, and the extended inner insert cylinder 16 is plugged into the interior of the delivery pipeline 1, and a sealing plug-in ring groove 17 is provided on the matching inner support plate 15, and the upper tube mouth of the extended inner insert cylinder 16 is located on the inner side of the sealing plug-in ring groove 17, and the lower end of the extended inner insert cylinder 16 is provided with a mounting sealing ring cavity 18, and a matching support carrier rod 19 is symmetrically fixedly provided on the lower end surface of the matching inner support plate 15, and the matching support carrier rod 19 is located in Inside the conveying pipeline 1, a closed fitting plate 2 is installed at the lower end of the extended inner insert tube 16, and a sealing matching tube 21 is fixedly arranged on the closed fitting plate 2. The upper end surface of the closed fitting plate 2 contacts the lower end surface of the extended inner insert tube 16. The sealing matching tube 21 is inserted in the installation sealing ring cavity 18 to play a sealing role, and a sampling connecting hole 22 is provided on the sealing matching tube 21. Support matching plates 23 are symmetrically fixed at both ends of the closed fitting plate 2. Support matching connecting holes 24 are provided on the support matching plates 23. A matching support rod 19 is inserted in the support matching connecting hole 24. A first matching spring 25 is sleeved on the matching support rod 19, and the two ends of the first matching spring 25 are respectively welded on the lower end surface of the matching inner carrier plate 15 and the supporting matching plate 23. When sampling natural gas, an insertable convenient sampling mechanism is installed on the conveying pipeline 1.
插入式便捷取样机构包括取样筒3、配合驱动板4、衔接活动板5和配合活动板6，取样筒3的下端固定设置有密封环套31，且取样筒3在进行取样时部分插接在取样定位筒11中，密封环套31插接在密封插接环槽17中，进一步保证取样时的密封性。The insertable convenient sampling mechanism includes a sampling tube 3, a matching driving plate 4, a connecting movable plate 5 and a matching movable plate 6. A sealing ring sleeve 31 is fixedly provided at the lower end of the sampling tube 3, and the sampling tube 3 is partially inserted into the sampling positioning tube 11 during sampling, and the sealing ring sleeve 31 is inserted into the sealing plug-in ring groove 17 to further ensure the sealing during sampling.
密封环套31的内侧固定设置有伸入取样管32，伸入取样管32与取样筒3相贯通，且伸入取样管32的下端开设有锥形配合通道33，取样筒3的上端开设有连接活动孔34，且取样筒3的上侧两端对称固定设置有配合载板35，另外，伸入取样管32的外径与延伸内插筒16的内径相等。A sampling tube 32 is fixedly arranged on the inner side of the sealing ring sleeve 31. The sampling tube 32 is connected to the sampling barrel 3, and a conical matching channel 33 is provided at the lower end of the sampling tube 32. A connecting movable hole 34 is provided at the upper end of the sampling barrel 3, and matching carrier plates 35 are symmetrically fixedly arranged at both ends of the upper side of the sampling barrel 3. In addition, the outer diameter of the sampling tube 32 is equal to the inner diameter of the extended inner insert barrel 16.
配合载板35上固定设置有定位承载柱36，定位承载柱36上开设有限位通道37，且定位承载柱36的两侧对称固定设置有支撑载块38，支撑载块38上固定设置有配合载杆39，另外，在进行取样时定位承载柱36插接在连接定位槽13中，且与连接定位槽13的内壁相接触，对取样筒3起到定位的作用。A positioning bearing column 36 is fixedly provided on the matching carrier plate 35, a limiting channel 37 is provided on the positioning bearing column 36, and supporting blocks 38 are symmetrically fixedly provided on both sides of the positioning bearing column 36, and a matching carrying rod 39 is fixedly provided on the supporting blocks 38. In addition, when sampling is performed, the positioning bearing column 36 is inserted into the connecting positioning groove 13 and contacts with the inner wall of the connecting positioning groove 13, so as to position the sampling tube 3.
取样筒3上安装有配合驱动板4，配合驱动板4的上端固定设置有固定承载柱41，固定承载柱41的上端固定设置有支撑配合杆42，支撑配合杆42的上端固定设置有限制顶板43，且配合驱动板4的两端对称开设有安装内槽44，安装内槽44中开设有限位插孔45。A matching drive plate 4 is installed on the sampling tube 3, and a fixed bearing column 41 is fixedly provided on the upper end of the matching drive plate 4, a supporting matching rod 42 is fixedly provided on the upper end of the fixed bearing column 41, and a limiting top plate 43 is fixedly provided on the upper end of the supporting matching rod 42, and installation inner grooves 44 are symmetrically opened at both ends of the matching drive plate 4, and a limited position plug hole 45 is opened in the installation inner groove 44.
配合驱动板4的下端固定设置有承载内插杆46，承载内插杆46穿过连接活动孔34插接在取样筒3的内部，且承载内插杆46上套接有第二配合弹簧461，且第二配合弹簧461处于取样筒3的外侧，且第二配合弹簧461的两端分别焊接在配合驱动板4上和取样筒3上，承载内插杆46上固定设置有配合内插塞板47，配合内插塞板47插接在取样筒3中，且配合内插塞板47的直径与取样筒3的内径相等，且承载内插杆46的下端还固定设置有锥形封堵块48，锥形封堵块48插接在锥形配合通道33中，在锥形面的配合下可以充分保证伸入取样管32的密封性，另外，承载内插杆46的直径小于伸入取样管32的内径。A load-bearing inner plug rod 46 is fixedly provided at the lower end of the matching driving plate 4, and the load-bearing inner plug rod 46 passes through the connecting movable hole 34 and is inserted into the interior of the sampling tube 3, and a second matching spring 461 is sleeved on the load-bearing inner plug rod 46, and the second matching spring 461 is located on the outside of the sampling tube 3, and the two ends of the second matching spring 461 are respectively welded to the matching driving plate 4 and the sampling tube 3, and a matching inner plug plate 47 is fixedly provided on the load-bearing inner plug rod 46, and the matching inner plug plate 47 is inserted into the sampling tube 3, and the diameter of the matching inner plug plate 47 is equal to the inner diameter of the sampling tube 3, and a conical blocking block 48 is also fixedly provided at the lower end of the load-bearing inner plug rod 46, and the conical blocking block 48 is inserted into the conical matching channel 33. With the cooperation of the conical surface, the sealing performance of the sampling tube 32 can be fully guaranteed. In addition, the diameter of the load-bearing inner plug rod 46 is smaller than the inner diameter of the sampling tube 32.
配合驱动板4的下侧两端对称固定设置有插接连杆49，插接连杆49插接在限位通道37中，且插接连杆49的下端固定设置有配合连接底块491，配合连接底块491上铰接有衔接配合连杆492。The two ends of the lower side of the mating driving plate 4 are symmetrically fixed with plug-in connecting rods 49, which are inserted into the limiting channel 37, and the lower end of the plug-in connecting rod 49 is fixed with a mating connecting bottom block 491, on which a connecting mating connecting rod 492 is hinged.
配合驱动板4上安装有衔接活动板5，衔接活动板5上开设有套接插孔51，套接插孔51中插接有支撑配合杆42，且衔接活动板5的两端对称铰接有连接活动杆52，连接活动杆52的下端铰接有限制配合块53。A connecting movable plate 5 is installed on the matching driving plate 4, and a socket socket 51 is opened on the connecting movable plate 5. A supporting matching rod 42 is inserted in the socket socket 51, and connecting movable rods 52 are symmetrically hinged at both ends of the connecting movable plate 5, and a limiting matching block 53 is hinged at the lower end of the connecting movable rod 52.
限制配合块53插接在安装内槽44中，且限制配合块53上固定设置有凸出连块54，凸出连块54上铰接有连接活动杆52，且限制配合块53上还固定设置有限位插接杆55，限位插接杆55插接在限位插孔45中。The limiting fitting block 53 is inserted in the installation inner groove 44 , and a protruding connecting block 54 is fixedly provided on the limiting fitting block 53 , a connecting movable rod 52 is hinged on the protruding connecting block 54 , and a limiting plug-in rod 55 is also fixedly provided on the limiting fitting block 53 , and the limiting plug-in rod 55 is inserted in the limiting plug hole 45 .
取样筒3的两端对称安装有配合活动板6，配合活动板6上开设有限制插接通道61，限制插接通道61的下侧固定设置有连接底板62，连接底板62的两头对称开设有滑动配合孔63，滑动配合孔63中插接有配合载杆39，且连接底板62的下端固定设置有下垂连块64，下垂连块64的下端固定设置有配合定位载板65，配合定位载板65的两侧对称固定设置有配合定位插条66，且配合定位插条66在对取样筒3起到固定的作用时插接在插接锁定槽14中，且配合定位载板65与衔接配合连杆492进行铰接，另外，衔接配合连杆492与配合定位载板65铰接的一端所处高度高于其与配合连接底块491铰接的一端所处高度。The two ends of the sampling tube 3 are symmetrically equipped with matching movable plates 6, and a limiting plug-in channel 61 is provided on the matching movable plate 6. A connecting bottom plate 62 is fixedly provided on the lower side of the limiting plug-in channel 61. Sliding matching holes 63 are symmetrically provided at both ends of the connecting bottom plate 62. A matching carrier rod 39 is inserted in the sliding matching holes 63, and a hanging connecting block 64 is fixedly provided at the lower end of the connecting bottom plate 62. A matching positioning carrier plate 65 is fixedly provided at the lower end of the hanging connecting block 64. Matching positioning inserts 66 are symmetrically fixedly provided on both sides of the matching positioning carrier plate 65, and the matching positioning inserts 66 are inserted in the plug-in locking groove 14 when they play a role in fixing the sampling tube 3, and the matching positioning carrier plate 65 is hinged with the connecting matching connecting rod 492. In addition, the height of one end of the connecting matching connecting rod 492 hinged to the matching positioning carrier plate 65 is higher than the height of one end thereof hinged to the matching connecting bottom block 491.
在进行天然气的取样时，将伸入取样管32插接到延伸内插筒16中，使其下端面与封闭贴合板2的上端面相接触，此时的锥形封堵块48的下端面也与封闭贴合板2相接触，与此同时密封环套31插接在密封插接环槽17中，进一步保证取样时的密封性，定位承载柱36插接在连接定位槽13中实现取样筒3的定位，往下按压配合驱动板4即可带动锥形封堵块48往下移动，同时带动封闭贴合板2往下移动，随着锥形封堵块48的移动将使得锥形配合通道33打开，同时随着封闭贴合板2的移动也将使得密封配合筒21上的取样连接孔22移出安装密封环腔18，这样输送管道1中的天然气即可从取样连接孔22中进入到延伸内插筒16中，进而从锥形配合通道33处进入到取样筒3中，即实现插入式取样，保证了取样质量，另外，配合驱动板4在往下移动时，其也将带动插接连杆49往下移动，这样在衔接配合连杆492的作用下将带动配合活动板6往取样筒3的方向移动，使得配合定位插条66插接到插接锁定槽14中，实现了取样筒3与输送管道1之间的固定连接，进而保证了取样筒3在取样过程中的稳定性，且随着配合活动板6的移动其将与限制配合块53相接触，这样在配合活动板6的作用下将推动限制配合块53往支撑配合杆42的方向移动，这样在连接活动杆52的作用下将推动衔接活动板5相对于配合驱动板4往上移动，直到限制配合块53到达限制插接通道61处，这样在重力的作用下使得衔接活动板5往下移动，进而在连接活动杆52的作用下将推动限制配合块53反向移动插接到限制插接通道61中，在限制插接通道61内顶壁的作用下使得限制配合块53不能够往上移动，进而实现配合驱动板4的固定，保证了取样筒3安装的牢靠性，取样完成后，往上拉动衔接活动板5使得限制配合块53退出限制插接通道61即可使得配合驱动板4处于解锁状态，然后在第二配合弹簧461的作用下其往上移动，进而使得锥形封堵块48进行复位，同时在第一配合弹簧25的作用下使得封闭贴合板2进行复位，而在复位的过程中，当取样连接孔22处于安装密封环腔18的内部后，在延伸内插筒16中将存留一定的天然气，而此时的锥形封堵块48并没有完全复位，随着随着锥形封堵块48的移动，配合内插塞板47也将往上移动这样即可在取样筒3的内部形成一定的负压，在负压的作用下可以将延伸内插筒16中存留的天然气吸收到取样筒3的内部，避免天然气的泄漏，待配合驱动板4完全复位后可以将取样筒3取下，当需要将取样筒3中的样品取出时，同样推动配合驱动板4使得伸入取样管32处于打开状态即可，同时在配合内插塞板47的推动下可以使得天然气更易排出，另外，当取样筒3中的样品难以全部取出时可以使用真空泵将其抽出。When sampling natural gas, the extended sampling tube 32 is inserted into the extended inner insert tube 16 so that its lower end face contacts the upper end face of the closed fitting plate 2. At this time, the lower end face of the conical blocking block 48 also contacts the closed fitting plate 2. At the same time, the sealing ring sleeve 31 is inserted into the sealing plug-in ring groove 17 to further ensure the sealing during sampling. The positioning bearing column 36 is inserted into the connecting positioning groove 13 to realize the positioning of the sampling tube 3. Pressing the matching drive plate 4 downward can drive the conical blocking block 48 to move downward, and at the same time drive the closed fitting plate 2 to move downward. As the conical blocking block 48 moves, the conical matching channel 33 will be opened. At the same time, as the closed fitting plate 2 moves, the sampling connection hole 22 on the sealing matching tube 21 will be moved out of the installation sealing ring cavity 18. In this way, the natural gas in the delivery pipeline 1 can be discharged from the sampling connection hole 22. The cam 42 is pressed against the engagement member 492 and the engagement member 493 is engaged with the engagement member 494, thereby causing the engagement member 49 to move in the direction of the engagement member 492. The engagement member 492 is pressed against the engagement member 493 and the engagement member 493 is engaged with the engagement member 494. The limiting matching block 53 moves until the limiting matching block 53 reaches the limiting insertion channel 61, so that the connecting movable plate 5 moves downward under the action of gravity, and then the connecting movable rod 52 pushes the limiting matching block 53 to move in the opposite direction and insert it into the limiting insertion channel 61. Under the action of the top wall in the limiting insertion channel 61, the limiting matching block 53 cannot move upward, thereby achieving the fixation of the matching drive plate 4 and ensuring the reliability of the installation of the sampling tube 3. After the sampling is completed, the connecting movable plate 5 is pulled upward to make the limiting matching block 53 exit the limiting insertion channel 61, so that the matching drive plate 4 is in an unlocked state, and then it moves upward under the action of the second matching spring 461, thereby resetting the conical blocking block 48, and at the same time, under the action of the first matching spring 25, the closed fitting plate 2 is reset, and in the resetting process, when After the sampling connection hole 22 is located inside the sealing ring cavity 18, a certain amount of natural gas will remain in the extended inner insert tube 16, and the conical blocking block 48 is not completely reset at this time. As the conical blocking block 48 moves, the inner plug plate 47 will also move upward, so that a certain negative pressure can be formed inside the sampling tube 3. Under the action of the negative pressure, the natural gas retained in the extended inner insert tube 16 can be absorbed into the interior of the sampling tube 3 to avoid leakage of natural gas. After the cooperative driving plate 4 is completely reset, the sampling tube 3 can be removed. When it is necessary to take out the sample in the sampling tube 3, the cooperative driving plate 4 is also pushed to make the extended sampling tube 32 in an open state. At the same time, under the push of the inner plug plate 47, the natural gas can be discharged more easily. In addition, when it is difficult to take out all the samples in the sampling tube 3, a vacuum pump can be used to extract them.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
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