CN112198004B - Online airtight buffer memory sampler - Google Patents
Online airtight buffer memory sampler Download PDFInfo
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- CN112198004B CN112198004B CN202011054312.2A CN202011054312A CN112198004B CN 112198004 B CN112198004 B CN 112198004B CN 202011054312 A CN202011054312 A CN 202011054312A CN 112198004 B CN112198004 B CN 112198004B
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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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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Abstract
The invention belongs to the field of sampling equipment, and relates to an online closed cache sampler, which comprises a shell, wherein a sampling bottle fixing unit is arranged below the shell, a sealing valve seat is arranged at the lower part in a hollow cavity of the shell, a valve core is arranged in the middle of the sealing valve seat, the top end of the valve core is connected with a stroke unit arranged at the upper part in the hollow cavity of the shell, and the stroke unit is driven by a driving mechanism arranged above the shell; an end cover is arranged between the shell and the sampling bottle fixing unit, a flow passage and an adsorption passage are arranged in the end cover, one end of the flow passage is communicated with an outlet of the sealing valve seat, the other end of the flow passage is communicated with a sampling bottle in the sampling bottle fixing unit, one end of the adsorption passage is communicated with the sampling bottle in the sampling bottle fixing unit, and the other end of the adsorption passage is communicated with an adsorption box arranged on one side of the shell; one side of the shell is provided with a liquid inlet hole. The single interface of the invention is connected with the main pipe, so that the leakage points are few, the medium replacement waste is effectively avoided, the sampled sample is ensured to be the latest sample, and the pollution to the environment caused by the direct discharge of waste gas into the atmosphere is also avoided.
Description
Technical Field
The invention relates to an online airtight cache sampler, and belongs to the field of sampling equipment.
Background
The closed sampler is mainly used for obtaining accurate fluid medium samples for assay analysis under the conditions of toxicity, harm, flammability, explosiveness, easy pollution or different pressures in a closed manner. The method is commonly used in petrochemical industry, coal chemical industry, chemical industry and food industry, and can protect the purity of the sample, the environment, the system safety and the personnel during sampling. The main structure of the existing sampler is that a plurality of pipelines and a plurality of valves are assembled and fixed on a panel to operate a plurality of valves, joints have a plurality of leakage points, residual waste liquid media of an inlet pipe section and the pipelines of the sampler are required to be replaced before sampling, a first choice is discharged to an emptying pipe for recycling, or two sampling bottles are used for taking residual liquid and then taking the residual liquid for analyzing samples, even the replaced residual media are directly discharged into the atmosphere, a nearby floor drain or an appliance is held to lead the residual waste liquid into a field collecting device, and the media are directly exposed in the atmospheric environment and have great danger in front of personnel.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the online airtight buffer sampler is provided, the online airtight buffer sampler is connected with the main pipe through the single interface, leakage points are few, the operation process is simple, medium replacement waste is effectively avoided, the sampled sample is guaranteed to be the latest sample, and pollution to the environment caused by direct emission of waste gas into the atmosphere is also avoided.
The invention relates to an online closed cache sampler, which comprises a shell, wherein a sampling bottle fixing unit is arranged below the shell, a sealing valve seat is arranged at the lower part in a hollow cavity of the shell, the middle part of the sealing valve seat is provided with a lower part of a valve core in a matching way, an elastic pressing piece is sleeved on the periphery of the upper part of the valve core, the top end of the valve core is connected with a stroke unit arranged at the upper part in the hollow cavity of the shell, and the stroke unit is driven by a driving mechanism arranged above the shell; an end cover is arranged between the shell and the sampling bottle fixing unit, a flow passage and an adsorption passage are arranged in the end cover, one end of the flow passage is communicated with an outlet of the sealing valve seat, the other end of the flow passage is communicated with a sampling bottle in the sampling bottle fixing unit, one end of the adsorption passage is communicated with the sampling bottle in the sampling bottle fixing unit, and the other end of the adsorption passage is communicated with an adsorption box arranged on one side of the shell; one side of the shell is provided with a liquid inlet hole.
Before sampling, the operating valve is arranged at the liquid inlet, and a sampling bottle is fixed in the sampling bottle fixing unit. When sampling is carried out, the driving mechanism drives the stroke unit to move upwards, a sampled medium enters the liquid inlet hole through the operating valve and then flows to the middle upper part of the hollow cavity of the shell through the liquid inlet hole, when the medium in the hollow cavity of the shell is cached to a certain amount, the stroke unit continues to move upwards to drive the valve core to move upwards, the valve core is separated from the sealed valve seat, the sampled medium flows into the flow channel through a gap between the valve core and the sealed valve seat after passing through the liquid inlet hole and finally flows into the sampling bottle, and as the medium in the sampling bottle increases gradually, the original gas in the sampling bottle enters the adsorption box through the adsorption channel and is exhausted to the atmosphere after being adsorbed and filtered by the adsorption box; after the sample, actuating mechanism downstream, the case resets rapidly under the effect of suppress piece, and the case will seal the disk seat and close, prevents that the medium in the cavity in the casing from flowing to and lead to the sampling quality to go wrong in the sample bottle to stroke unit reverse motion makes the medium in the cavity in the casing reverse the row outside the operating valve. In the sampling process, enough residual quantity can be cached in the hollow cavity of the shell, the fact that all media flowing into the sampling bottle are the latest samples to be taken is guaranteed, and medium replacement waste is effectively avoided; and the whole structure has few leak points of the interface and can effectively avoid the pollution to the environment.
Preferably, the hollow cavity of the housing comprises an upper cavity, a middle cavity and a lower cavity, the upper cavity and the lower cavity are communicated through the middle cavity, the liquid inlet hole is formed in the wall of the housing on one side of the middle cavity, and the liquid inlet hole is communicated with the middle cavity; the sealing valve seat is arranged in the lower cavity, and the stroke unit is arranged in the upper cavity. The residual quantity in the upper cavity body can be better separated from the medium flowing into the sampling bottle, and the medium flowing into the sampling bottle is further ensured to be the latest medium to be measured.
Preferably, the stroke unit comprises a stroke rod and a volume block, the bottom end of the stroke rod is fixedly connected with the top end of the valve core, the top end of the stroke rod is provided with a stroke limit block, the lower surface of the volume block is provided with a depth groove, the stroke rod and the stroke limit block are arranged in the depth groove, the bottom end of the depth groove is provided with a stop ring, the stop ring is wrapped on the periphery of the stroke rod, the inner diameter of the stop ring is smaller than the outer diameter of the stroke limit block, and the stop ring is fixed with the volume block; the top end of the volume block is connected with a driving mechanism. The outer diameter of the volume block is matched with the diameter of the upper cavity. In the sampling process, the driving mechanism drives the volume block and the blocking ring to move upwards, the medium gradually flows into the upper cavity, the blocking ring firstly moves upwards along the stroke rod, the position of the stroke rod is fixed, when the blocking ring moves to the stroke limiting block, the blocking ring continues to move upwards, meanwhile, the stroke rod is driven by the stroke limiting block to simultaneously move upwards, the stroke rod drives the valve core to move upwards, the valve core is separated from the sealing valve seat, and the medium enters the flow channel through a gap between the valve core and the sealing valve seat and finally flows into the sampling bottle; when the medium reaches the required amount, the driving mechanism moves downwards, the force applied to the stroke limiting block disappears, the stroke limiting block, the stroke rod and the valve core fall back, the valve core closes the sealing valve seat again to prevent the medium from continuously flowing into the sampling bottle, and the volume block reversely extrudes the medium in the upper cavity and discharges the medium out of the operating valve along with the continuous downward movement of the driving mechanism.
Preferably, the fixed unit of sample bottle include with end cover fixed connection's bottle cover, the bottle cover below is equipped with U type support, U type support both sides are connected through the pivot with the bottle cover respectively, U type support bottom surface is equipped with the pull rod, the pull rod top is equipped with the cushion, the pull rod bottom runs through U type support bottom surface and is connected with operating handle, the pull rod periphery cover between cushion and the U type support bottom surface is equipped with thrust spring. The pull rod is pulled downwards through the operating handle, the thrust spring is compressed, then the bottle mouth end of the sampling bottle is inserted into the bottle cover, the flow channel and the adsorption channel are inserted into the bottle mouth of the sampling bottle, the flat bottom of the sampling bottle is aligned to the soft pad, then the operating handle is released, the thrust spring rebounds to tightly push the sampling bottle in the bottle cover, and the inner diameter of the bottle cover is matched with the appearance of the sampling bottle, so that the sampling bottle cannot be affected and shaken after the thrust spring is pushed into the sampling bottle; the cushion can play the guard action to the sampling bottle, prevents that operating handle's operation from breaking the sampling bottle carelessly.
Preferably, the upper part of the inner wall of the upper cavity body is provided with a sealing assembly, and the sealing assembly is matched with the outer diameter of the volume block. The sealing assembly is arranged to prevent leakage of the medium. The seal assembly generally comprises a seal ring and a bearing, and is obtained by purchasing a combination of commercially available parts, and belongs to the prior art.
Preferably, an inspection hole is formed in one side of the inner wall of the upper cavity above the sealing assembly, when the sealing assembly is abraded, a trace amount of liquid medium leaks from the inspection hole when the volume block acts, and when a maintainer finds that the trace amount of liquid medium exists in the inspection hole, the maintainer can judge that the device needs to be maintained; the arrangement of the inspection hole enables a worker to timely find the leakage to perform necessary maintenance operation.
Preferably, the outer wall of the shell at the position of the liquid inlet hole is additionally provided with an interface flange, the middle part of the interface flange is provided with a liquid inlet channel, and the liquid inlet channel is communicated with the liquid inlet hole. The interface flange is arranged to facilitate the installation and fixation of the device and the operating valve.
Preferably, the inlet channel in be equipped with the filter screen, can filter the medium that flows from the operating valve, guarantee the purity of sampling medium.
Preferably, the upper part and the lower part of the valve core are respectively provided with a sealing rod and a sealing core, the appearance of the sealing core is matched with the valve cavity of the sealing valve seat, the diameter of the sealing rod is smaller than that of the upper bottom surface of the sealing core, the sealing rod is positioned in the middle cavity, the middle cavity is in a step shape, and the elastic pressing piece is sleeved on the periphery of the sealing rod between the shaft shoulder of the inner wall of the step-shaped middle cavity and the upper bottom surface of the sealing core. The elastic pressing piece has a powerful effect on the sealing core, and the sealing core is tightly matched with the sealing valve seat; and after the sampling is finished, the driving mechanism moves downwards, the volume block loses force effect on the stroke limiting block, and the elastic pressing piece can quickly press the sealing core into the sealing valve seat to close the sealing valve seat again.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure, reasonable design, small volume and convenient installation; the single interface is connected with the main pipe, so that leakage points are few, the operation process is simple, and the medium buffer memory air drop before sampling is set, so that medium replacement waste is effectively avoided, the sampled sample is ensured to be the latest sample, and the pollution to the environment caused by the direct discharge of waste gas into the atmosphere is also avoided; and a sampling bottle fixing unit is arranged to ensure that the sampling bottle is hermetically and reliably connected with the flow passage.
Drawings
FIG. 1 is a schematic diagram of an online closed buffer sampler structure (in a non-sampling process);
FIG. 2 is a schematic diagram of the structure of an online closed buffer sampler (during sampling);
fig. 3 and 2 are partially enlarged views of a.
In the figure: 1. a drive mechanism; 2. a housing; 3. an interface flange; 4. operating the valve; 5. a liquid inlet channel; 6. filtering with a screen; 7. a liquid inlet hole; 8. an end cap; 9. a flow channel; 10. sampling a bottle; 11. a U-shaped bracket; 12. a pull rod; 13. an operating handle; 14. a thrust spring; 15. a bottle cover; 16. a soft cushion; 17. an adsorption channel; 18. an adsorption tank; 19. sealing the valve seat; 20. a valve core; 21. a middle cavity; 22. a spring pressing piece; 23. a check ring; 24. a depth groove; 25. a trip lever; 26. a seal assembly; 27. inspecting the hole; 28. a travel limit block; 29. an upper cavity; 30. rong Jikuai; 31. a sealing rod; 32. the core is sealed.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-3, the online closed buffer sampler of the present invention comprises a housing 2, a sampling bottle fixing unit is arranged below the housing 2, a sealing valve seat 19 is arranged at the lower part in the hollow cavity of the housing 2, the middle part of the sealing valve seat 19 is provided with the lower part of a valve core 20 in a matching manner, a spring piece 22 is sleeved on the periphery of the upper part of the valve core 20, the top end of the valve core 20 is connected with a stroke unit arranged at the upper part in the hollow cavity of the housing 2, and the stroke unit is driven by a driving mechanism 1 arranged above the housing 2; an end cover 8 is arranged between the shell 2 and the sampling bottle fixing unit, a flow passage 9 and an adsorption passage 17 are arranged in the end cover 8, one end of the flow passage 9 is communicated with an outlet of a sealing valve seat 19, the other end of the flow passage 9 is communicated with a sampling bottle 10 in the sampling bottle fixing unit, one end of the adsorption passage 17 is communicated with the sampling bottle 10 in the sampling bottle fixing unit, and the other end of the adsorption passage 17 is communicated with an adsorption box 18 arranged on one side of the shell 2; one side of the shell 2 is provided with a liquid inlet hole 7.
In this embodiment:
the hollow cavity of the shell 2 comprises an upper cavity 29, a middle cavity 21 and a lower cavity, the upper cavity 29 is communicated with the lower cavity through the middle cavity 21, the liquid inlet hole 7 is formed in the wall of the shell 2 on one side of the middle cavity 21, and the liquid inlet hole 7 is communicated with the middle cavity 21; the sealing valve seat 19 is arranged in the lower cavity and the stroke unit is arranged in the upper cavity 29. The residual quantity in the upper cavity 29 can be better separated from the medium flowing into the sampling bottle 10, and the medium flowing into the sampling bottle 10 is further ensured to be the latest medium to be measured.
The stroke unit comprises a stroke rod 25 and a volume block 30, the bottom end of the stroke rod 25 is fixedly connected with the top end of the valve core 20, a stroke limit block 28 is arranged at the top end of the stroke rod 25, a depth groove 24 is formed in the lower surface of the volume block 30, the stroke rod 25 and the stroke limit block 28 are arranged in the depth groove 24, a stop ring 23 is arranged at the bottom end of the depth groove 24, the stop ring 23 is wrapped on the periphery of the stroke rod 25, the inner diameter of the stop ring 23 is smaller than the outer diameter of the stroke limit block 28, and the stop ring 23 is fixed with the volume block 30; the top end of the volume block 30 is connected with the driving mechanism 1. The outer diameter of the volume block 30 matches the diameter of the upper cavity 29. In the sampling process, the driving mechanism 1 drives the volume block 30 and the blocking ring 23 to move upwards, a medium flows into the upper cavity 29 gradually, the blocking ring 23 moves upwards along the stroke rod 25 firstly, the position of the stroke rod 25 is fixed, when the blocking ring 23 moves to the stroke limit block 28, the blocking ring 23 continues to move upwards, meanwhile, the stroke rod 25 is driven by the stroke limit block 28 to move upwards simultaneously, the stroke rod 25 drives the valve core 20 to move upwards, the valve core 20 is separated from the sealing valve seat 19, the medium enters the flow channel 9 through a gap between the valve core 20 and the sealing valve seat 19, and finally flows into the sampling bottle 10; when the medium in the sampling bottle 10 reaches the required amount, the driving mechanism 1 moves downwards, the force applied to the stroke limiting block 28 disappears, the stroke limiting block 28, the stroke rod 25 and the valve core 20 fall back, the valve core 20 closes the sealing valve seat 19 again to prevent the medium from continuously flowing into the sampling bottle 10, and the volume block 30 reversely extrudes the medium in the upper cavity 29 to discharge the medium out of the operating valve 4 along with the continuous downward movement of the driving mechanism 1.
The sampling bottle fixing unit comprises a bottle cover 15 fixedly connected with the end cover 8, a U-shaped support 11 is arranged below the bottle cover 15, two sides of the U-shaped support 11 are respectively connected with the bottle cover 15 through rotating shafts, a pull rod 12 is arranged on the bottom surface of the U-shaped support 11, a soft cushion 16 is arranged at the top end of the pull rod 12, the bottom end of the pull rod 12 penetrates through the bottom surface of the U-shaped support 11 and is connected with an operating handle 13, and a thrust spring 14 is sleeved on the periphery of the pull rod 12 between the soft cushion 16 and the bottom surface of the U-shaped support 11. The pull rod 12 is pulled downwards through the operating handle 13, the thrust spring 14 is compressed, then the mouth end of the sampling bottle 10 is inserted into the bottle cover 15, the flow channel 9 and the adsorption channel 17 are both inserted into the mouth of the sampling bottle 10, the flat bottom of the sampling bottle 10 is aligned to the soft pad 16, then the operating handle 13 is loosened, the thrust spring 14 rebounds to tightly push the sampling bottle 10 in the bottle cover 15, and the inner diameter of the bottle cover 15 is matched with the appearance of the sampling bottle 10, so that the sampling bottle 10 cannot shake after the thrust spring 14 is pushed into the sampling bottle 10; the soft pad 16 can protect the sampling bottle 10 and prevent the sampling bottle 10 from being broken by carelessly operating the operating handle 13.
The upper part of the inner wall of the upper cavity 29 is provided with a sealing component 26, and the sealing component 26 is matched with the outer diameter of the volume block 30. The provision of the seal assembly 26 prevents leakage of the medium. The seal assembly 26 generally comprises a seal ring and a bearing, and is commercially available in part and is known in the art.
An inspection hole 27 is formed in one side of the inner wall of the upper cavity 29 above the sealing assembly 26, when the sealing assembly 26 is abraded, a trace amount of liquid medium leaks from the inspection hole 27 when the volume block 30 acts, and when a maintainer finds that the trace amount of liquid medium exists in the inspection hole 27, the maintenance of the device is required; the provision of the inspection hole 27 enables the worker to find the leak in time to perform the necessary maintenance operations.
The outer wall of the shell 2 at the position of the liquid inlet hole 7 is additionally provided with an interface flange 3, the middle part of the interface flange 3 is provided with a liquid inlet channel 5, and the liquid inlet channel 5 is communicated with the liquid inlet hole 7. The interface flange 3 is arranged to facilitate the installation and fixation of the device and the operating valve 4.
Be equipped with filter screen 6 in the inlet channel 5, can filter the medium that flows out from operating valve 4, guarantee the purity of sampling medium.
The upper part and the lower part of the valve core 20 are respectively provided with a sealing rod 31 and a sealing core 32, the shape of the sealing core 32 is matched with the valve cavity of the sealing valve seat 19, the diameter of the sealing rod 31 is smaller than that of the upper bottom surface of the sealing core 32, the sealing rod 31 is positioned in the middle cavity 21, the middle cavity 21 is in a step shape, and the elastic pressing piece 22 is sleeved on the periphery of the sealing rod 31 between the shaft shoulder of the inner wall of the step-shaped middle cavity 21 and the upper bottom surface of the sealing core 32. The spring pressing piece 22 has a powerful action on the sealing core 32 to ensure that the sealing core 32 is tightly matched with the sealing valve seat 19; after sampling is finished, the driving mechanism 1 moves downwards, the volume block 30 loses force to the stroke limiting block 28, and at the moment, the elastic pressing piece 22 can quickly press the sealing core 32 into the sealing valve seat 19 to close the sealing valve seat 19 again.
Before sampling, the operating valve 4 and the interface flange 3 are fixedly arranged, the sampling bottle 10 is fixed in the bottle cover 15, and the flow passage 9 and the adsorption passage 17 are inserted into the bottleneck of the sampling bottle 10. During sampling, the driving mechanism 1 drives the stroke unit to move upwards to drive the volume block 30 and the blocking ring 23 to move upwards, a sampled medium enters the liquid inlet hole 7 through the operation valve 4, then the medium gradually flows into the upper cavity 29 through the liquid inlet hole 7, the blocking ring 23 firstly moves upwards along the stroke rod 25, the position of the stroke rod 25 is fixed, when the blocking ring 23 moves to the stroke limiting block 28, the medium in the upper cavity 29 buffers a certain amount at the moment, the blocking ring 23 continues to move upwards, meanwhile, the stroke rod 25 is driven by the stroke limiting block 28 to move upwards at the same time, the stroke rod 25 drives the valve core 20 to move upwards, the valve core 20 is separated from the sealing valve seat 19, the medium enters the flow channel 9 through a gap between the valve core 20 and the sealing valve seat 19 and finally flows into the sampling bottle 10, as the medium in the sampling bottle 10 gradually increases, the original gas in the sampling bottle 10 enters the adsorption tank 18 through the adsorption channel 17, is adsorbed and filtered by the adsorption tank 18 and then is discharged to the atmosphere; when the medium in the sampling bottle 10 reaches the required amount, sampling is finished, the driving mechanism 1 moves downwards, the force applied to the stroke limiting block 28 disappears, the elastic pressing piece 22 can enable the sealing core 32 to be quickly reset and pressed into the sealing valve seat 19, the sealing valve seat 19 is closed again, the problem of sampling quality caused by the fact that the medium in the upper cavity 29 of the shell flows into the sampling bottle 10 is prevented, and along with the fact that the driving mechanism 1 continues to move downwards, the medium in the upper cavity 29 is reversely extruded by the volume block 30 and discharged back to the outside of the operating valve 4. In the sampling process, enough residual quantity can be cached in the hollow cavity of the shell 2, the media flowing into the sampling bottle 10 are all the latest samples to be taken, and the waste of the media replacement is effectively avoided; and the whole structure has few leak source, and is provided with the adsorption tank 18, and the adsorption tank 18 is internally provided with activated carbon, so that the environmental pollution can be effectively avoided. The driving mechanism 1 can be selected from a hydraulic cylinder, an air cylinder or a lead screw and the like, and the driving mechanism 1 can be controlled by a control system, so that one-key sampling and timing sampling can be realized.
Claims (6)
1. The utility model provides an online airtight buffer sample thief which characterized in that: the sampling device comprises a shell (2), wherein a sampling bottle fixing unit is arranged below the shell (2), a sealing valve seat (19) is arranged at the lower part in a hollow cavity of the shell (2), the middle part of the sealing valve seat (19) is provided with the lower part of a valve core (20) in a matching way, an elastic pressing part (22) is sleeved on the periphery of the upper part of the valve core (20), the top end of the valve core (20) is connected with a stroke unit arranged at the upper part in the hollow cavity of the shell (2), and the stroke unit is driven by a driving mechanism (1) arranged above the shell (2); an end cover (8) is arranged between the shell (2) and the sampling bottle fixing unit, a flow passage (9) and an adsorption passage (17) are arranged in the end cover (8), one end of the flow passage (9) is communicated with an outlet of the sealing valve seat (19), the other end of the flow passage (9) is communicated with the sampling bottle (10) in the sampling bottle fixing unit, one end of the adsorption passage (17) is communicated with the sampling bottle (10) in the sampling bottle fixing unit, and the other end of the adsorption passage is communicated with an adsorption box (18) arranged on one side of the shell (2); a liquid inlet hole (7) is formed in one side of the shell (2);
the hollow cavity of the shell (2) comprises an upper cavity (29), a middle cavity (21) and a lower cavity, the upper cavity (29) is communicated with the lower cavity through the middle cavity (21), the liquid inlet hole (7) is formed in the wall of the shell (2) on one side of the middle cavity (21), and the liquid inlet hole (7) is communicated with the middle cavity (21); the sealing valve seat (19) is arranged in the lower cavity, and the stroke unit is arranged in the upper cavity (29);
the stroke unit comprises a stroke rod (25) and a volume block (30), the bottom end of the stroke rod (25) is fixedly connected with the top end of the valve core (20), a stroke limiting block (28) is arranged at the top end of the stroke rod (25), the volume block (30) is provided with a depth groove (24), the stroke rod (25) and the stroke limiting block (28) are arranged in the depth groove (24), a blocking ring (23) is arranged at the bottom end of the depth groove (24), the blocking ring (23) is wrapped on the periphery of the stroke rod (25), the inner diameter of the blocking ring (23) is smaller than the outer diameter of the stroke limiting block (28), and the blocking ring (23) is fixed with the volume block (30); rong Jikuai (30) top end is connected with a driving mechanism (1);
the upper portion and the lower portion of the valve core (20) are respectively provided with a sealing rod (31) and a sealing core (32), the appearance of the sealing core (32) is matched with a valve cavity of the sealing valve seat (19), the diameter of the sealing rod (31) is smaller than that of the upper bottom surface of the sealing core (32), the sealing rod (31) is located in the middle cavity (21), the middle cavity (21) is in a step shape, and the elastic pressing piece (22) is sleeved on the periphery of the sealing rod (31) between the shaft shoulder of the inner wall of the step-shaped middle cavity (21) and the upper bottom surface of the sealing core (32).
2. The online closed buffer sampler of claim 1, wherein: the sampling bottle fixing unit comprises a bottle cover (15) fixedly connected with an end cover (8), a U-shaped support (11) is arranged below the bottle cover (15), two sides of the U-shaped support (11) are respectively connected with the bottle cover (15) through rotating shafts, a pull rod (12) is arranged on the bottom surface of the U-shaped support (11), a cushion (16) is arranged on the top end of the pull rod (12), the bottom end of the pull rod (12) penetrates through the bottom surface of the U-shaped support (11) to be connected with an operating handle (13), and a thrust spring (14) is sleeved on the periphery of the pull rod (12) between the cushion (16) and the bottom surface of the U-shaped support (11).
3. The online closed buffer sampler of claim 1, wherein: the upper part of the inner wall of the upper cavity (29) is provided with a sealing component (26), and the sealing component (26) is matched with the outer diameter of the volume block (30).
4. The online closed buffer sampler of claim 3, wherein: an inspection hole (27) is arranged on one side of the inner wall of the upper cavity (29) above the sealing component (26).
5. The online closed buffer sampler of claim 1, wherein: an interface flange (3) is additionally arranged on the outer wall of the shell at the position of the liquid inlet hole (7), a liquid inlet channel (5) is arranged in the middle of the interface flange (3), and the liquid inlet channel (5) is communicated with the liquid inlet hole.
6. The online closed buffer sampler of claim 5, wherein: a filter screen (6) is arranged in the liquid inlet channel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054312.2A CN112198004B (en) | 2020-09-29 | 2020-09-29 | Online airtight buffer memory sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054312.2A CN112198004B (en) | 2020-09-29 | 2020-09-29 | Online airtight buffer memory sampler |
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| Publication Number | Publication Date |
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| CN112198004A CN112198004A (en) | 2021-01-08 |
| CN112198004B true CN112198004B (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011054312.2A Active CN112198004B (en) | 2020-09-29 | 2020-09-29 | Online airtight buffer memory sampler |
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| CN114544897B (en) * | 2022-02-16 | 2023-08-22 | 江苏蓝创智能科技股份有限公司 | Environment remote supervision method and environment supervision system thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327920B1 (en) * | 1996-02-09 | 2001-12-11 | C.H. & I Technologies, Inc. | On-line fluid sampling device |
| CN201852720U (en) * | 2011-03-02 | 2011-06-01 | 特变电工新疆硅业有限公司 | Closed liquid sampler |
| CN203162319U (en) * | 2013-04-02 | 2013-08-28 | 宣达实业集团有限公司 | On-line sampling valve |
| CN104483423A (en) * | 2014-12-31 | 2015-04-01 | 同方威视技术股份有限公司 | Sample collection and thermal analysis sampling device and method as well as trace detection device |
| CN104517799A (en) * | 2014-12-31 | 2015-04-15 | 同方威视技术股份有限公司 | Detection equipment and detection method |
| CN206074299U (en) * | 2016-10-12 | 2017-04-05 | 天津市环境保护科学研究院 | A kind of improved column shaped deposit sampling apparatuses |
| CN208399194U (en) * | 2018-07-03 | 2019-01-18 | 上海愚工机械科技有限公司 | Novel online closed sampler |
| CN210890215U (en) * | 2019-08-06 | 2020-06-30 | 温州诺盟科技有限公司 | Sterile sampling valve |
| CN211553401U (en) * | 2019-12-31 | 2020-09-22 | 湖北万安环保石化设备有限公司 | On-line sampler |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH551570A (en) * | 1974-03-04 | 1974-07-15 | Bbc Brown Boveri & Cie | HYDRAULIC DRIVE, IN PARTICULAR FOR ELECTRIC SWITCHGEAR. |
| JP2996529B2 (en) * | 1991-03-20 | 2000-01-11 | トキコ株式会社 | Refueling device |
| US7392864B2 (en) * | 2005-07-15 | 2008-07-01 | Stinger Wellhead Protection, Inc. | Slip spool assembly and method of using same |
| CN203037627U (en) * | 2012-11-30 | 2013-07-03 | 中国石油天然气股份有限公司 | On-line component analysis device for rock core output liquid |
-
2020
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327920B1 (en) * | 1996-02-09 | 2001-12-11 | C.H. & I Technologies, Inc. | On-line fluid sampling device |
| CN201852720U (en) * | 2011-03-02 | 2011-06-01 | 特变电工新疆硅业有限公司 | Closed liquid sampler |
| CN203162319U (en) * | 2013-04-02 | 2013-08-28 | 宣达实业集团有限公司 | On-line sampling valve |
| CN104483423A (en) * | 2014-12-31 | 2015-04-01 | 同方威视技术股份有限公司 | Sample collection and thermal analysis sampling device and method as well as trace detection device |
| CN104517799A (en) * | 2014-12-31 | 2015-04-15 | 同方威视技术股份有限公司 | Detection equipment and detection method |
| CN206074299U (en) * | 2016-10-12 | 2017-04-05 | 天津市环境保护科学研究院 | A kind of improved column shaped deposit sampling apparatuses |
| CN208399194U (en) * | 2018-07-03 | 2019-01-18 | 上海愚工机械科技有限公司 | Novel online closed sampler |
| CN210890215U (en) * | 2019-08-06 | 2020-06-30 | 温州诺盟科技有限公司 | Sterile sampling valve |
| CN211553401U (en) * | 2019-12-31 | 2020-09-22 | 湖北万安环保石化设备有限公司 | On-line sampler |
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