CN220367026U - Hand plunger valve sampler - Google Patents
Hand plunger valve sampler Download PDFInfo
- Publication number
- CN220367026U CN220367026U CN202321431432.9U CN202321431432U CN220367026U CN 220367026 U CN220367026 U CN 220367026U CN 202321431432 U CN202321431432 U CN 202321431432U CN 220367026 U CN220367026 U CN 220367026U
- Authority
- CN
- China
- Prior art keywords
- plunger valve
- liquid outlet
- medium
- medium channel
- sampling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 238000005070 sampling Methods 0.000 claims abstract description 75
- 238000007789 sealing Methods 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to the technical field of samplers, and discloses a hand-operated plunger valve sampler, which comprises: the sampler body is provided with a medium channel for sampling medium to circulate and a liquid outlet which is mutually communicated with the medium channel in a crossing way; a plunger valve stem slidably engaged with the media passage to be able to slide to open or close the liquid outlet, in this case, by setting the plunger valve stem and/or the media passage to: when the plunger valve rod slides along the direction of opening the liquid outlet, the sampling medium in the medium channel can start flowing out to the liquid outlet before the free end of the plunger valve rod reaches the liquid outlet, so that the sectional area of the sampling medium flowing out is smaller before the sampling medium reaches the liquid outlet, the flow speed of the sampling medium is lower, the sampling medium is prevented from being suddenly released under the action of pressure, the splashing phenomenon caused by the sudden flowing out of the sampling medium in the sampling process is avoided, and the problem of scalding sampling staff is solved.
Description
Technical Field
The utility model relates to the technical field of samplers, in particular to a hand-operated plunger valve sampler.
Background
In the fields of petroleum and chemical industry, analysis of samples is critical, sampling is the most important link, and how to safely and rapidly extract representative samples is a long-standing problem.
At present, in order to meet sampling requirements, a hand-operated plunger valve sampler in the petrochemical industry is generally applied, the safety and stability of the hand-operated plunger valve sampler are good, but in the use process, the problem that when a plunger is separated from a packing seal, the flow area of a sampling medium is just a stroke of the plunger and a cylinder formed by the outer circle of the plunger, the flow area is large, the sampling medium can be suddenly released under the action of pressure, so that splashing is easy to occur in the sampling process, and the safety of sampling personnel is endangered is solved.
Therefore, a corresponding solution is needed to solve the problem that the sampling medium suddenly flows out to generate splash in the sampling process due to the fact that the current hand-operated plunger valve sampler has a large flow cross section of the sampling medium and the sampling medium is suddenly released under the pressure.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a hand-operated plunger valve sampler has larger flow sectional area of a sampling medium in the sampling process, and the sampling medium can be suddenly released under the action of pressure, so that the medium suddenly flows out and splashes in the sampling process.
In order to solve the technical problems, the utility model provides a hand-operated plunger valve sampler, which comprises: the sampler body is provided with a medium channel for sampling medium to circulate and a liquid outlet which is mutually communicated with the medium channel in a crossing way; a plunger valve stem slidably engaged with the media passage to be able to slide to open or close the liquid outlet, wherein the plunger valve stem and/or the media passage is formed as: when the plunger valve rod slides in a direction towards the opening of the liquid outlet, the sampling medium in the medium channel can start to flow out to the liquid outlet before the free end of the plunger valve rod reaches the liquid outlet.
Preferably, a portion of the plunger valve stem adjacent the free end thereof is formed with a tapered section tapering towards the free end to allow sample medium in the medium passage to begin to flow out to the liquid outlet before the free end reaches the liquid outlet when the plunger valve stem slides in a direction towards opening the liquid outlet.
Preferably, the included angle between the conical section and the inner wall of the medium channel is 0-45 degrees.
Preferably, the medium channel and the liquid outlet are arranged perpendicular to each other, and the liquid outlet is communicated with the liquid outlet channel which extends obliquely towards the operating end of the plunger valve rod.
Preferably, the medium passage includes a first port and a second port formed at both axial ends of the sampler body, the first port being in communication with a transport pipe for transporting the sampling medium, the plunger valve stem extending into the medium passage through the second port.
Preferably, the plunger valve stem further has a straight barrel section in sliding fit with the media passage, the straight barrel section having an outer diameter of the same size as an inner diameter of the media passage.
Preferably, sealing elements respectively positioned at two sides of the liquid outlet are arranged in the medium channel, and the straight barrel section is in interference fit with the sealing elements.
Preferably, the sealing member comprises a first sealing ring which is arranged in the medium channel and is adjacent to one side of the liquid outlet, and a second sealing ring which is arranged in the medium channel and is adjacent to the other side of the liquid outlet.
Preferably, the first sealing ring and the second sealing ring are polyurethane sealing rings respectively.
Preferably, an operation counter bore for being matched with an operation tool is arranged on the end face of the operation end of the plunger valve rod.
Through above-mentioned technical scheme, the hand formula plunger valve sampler that this disclosure provided sets up into plunger valve rod and/or medium passageway: when the plunger valve rod slides along the direction of opening the liquid outlet, the sampling medium in the medium channel can start flowing out to the liquid outlet before the free end of the plunger valve rod reaches the liquid outlet, so that the sectional area of the sampling medium flowing out is smaller before the sampling medium reaches the liquid outlet, the flow rate of the sampling medium is lower, the sampling medium is prevented from being suddenly released under the action of pressure, the splashing phenomenon caused by the sudden flowing out of the sampling medium in the sampling process is avoided, and the problem of scalding sampling staff is solved.
Drawings
Fig. 1 is a schematic diagram of one implementation of a hand operated plunger valve sampler as disclosed in the examples of the present disclosure.
Description of the reference numerals
1. Sampler body 2 medium channel
3. Liquid outlet 4 plunger valve rod
41. Conical section 42 straight section
5. First sealing ring of liquid outlet channel 6
7. Second sealing ring
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the embodiments described herein are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, unless otherwise indicated, directional terms such as "upper, lower, left, right, inner, outer" and the like are used to indicate an azimuth or a positional relationship based on that shown in the drawings, only for convenience of description of the present design and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present design.
In the description of the present design, it should be noted that, unless explicitly specified and limited otherwise, the terms "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this design will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1, in order to solve the problem that in the prior art, a hand-operated plunger valve sampler has a large flow cross section of a sampling medium in a sampling process, and the sampling medium is suddenly released under the action of pressure, so that the medium suddenly flows out to generate splashing in the sampling process, the utility model provides a hand-operated plunger valve sampler, which comprises: a sampler body 1, wherein the sampler body 1 is provided with a medium channel 2 for the sampling medium to circulate, and a liquid outlet 3 which is mutually communicated with the medium channel 2 in a crossing way; a plunger valve stem 4, the plunger valve stem 4 slidably cooperating with the media channel 2 to be able to slide to open or close the liquid outlet 3, wherein the plunger valve stem 4 and/or the media channel 2 are formed as: when the plunger valve stem 4 is slid in a direction towards the opening of the liquid outlet 3, the sampling medium in the medium channel 2 can start to flow out to the liquid outlet 3 before the free end of the plunger valve stem 4 reaches the liquid outlet 3.
The sampling medium flows into the medium channel 2, and the plunger valve rod 4 which is slidably arranged in the medium channel 2 is arranged in opposite directions, when the plunger valve rod 4 slides towards the direction of opening the liquid outlet 3, the sampling medium in the medium channel 2 can start flowing out to the liquid outlet 3 before the free end of the plunger valve rod 4 reaches the liquid outlet 3, and before the sampling medium reaches the liquid outlet 3, the sectional area of the sampling medium flowing out can be smaller, so that the flow speed of the sampling medium is lower, the sampling medium is prevented from being suddenly released under the action of pressure, the sampling medium is prevented from suddenly flowing out to generate a splash phenomenon in the sampling process, and the problem of scalding sampling staff is solved.
Wherein, according to one embodiment of the utility model, the part of the plunger valve stem 4 adjacent to its free end is formed with a conical section 41 tapering towards the free end to allow the sampling medium in the medium channel 2 to flow out to the liquid outlet 3 before the free end reaches the liquid outlet 3 when the plunger valve stem 4 slides in a direction towards the opening of the liquid outlet 3. As shown in fig. 1, before the plunger valve rod 4 slides in the direction of opening the liquid outlet 3 to open the liquid outlet 3, the sampling medium can flow out through the gap of the included angle between the plunger valve rod 4 and the medium channel 2, which is set to be a conical section 41, so that the sectional area of the sampling medium flowing out through the gap of the included angle in advance is smaller, the flow velocity is lower, the sampling medium is prevented from being suddenly released under the action of pressure, and the sampling medium suddenly flows out to generate a splash phenomenon in the sampling process.
In alternative embodiments, it may be achieved in other ways to connect the medium channel 2 to the liquid outlet 3 before the free end of the plunger valve stem 4 reaches the liquid outlet 3, in order to avoid splashing of the sampling medium under pressure. For example, the portion of the plunger valve stem 4 near the free end may have a constant cross section, while the portion of the media channel 2 adjacent to the outlet 3 (right side of the outlet 3 is shown) is formed as a conical section of increasing radial dimension in the direction towards the outlet 3, as well as allowing the sample media in the media channel 2 to flow out of the angular gap between the plunger valve stem 4 and the media channel 2 before the free end of the plunger valve stem 4 reaches the outlet 3.
In addition, a medium flow passage extending from the end face of the free end to the peripheral surface of the plunger valve stem 4 may be formed so that the medium passage 2 and the liquid outlet 3 can be communicated by the medium flow passage before the free end of the plunger valve stem 4 reaches the liquid outlet 3, to allow the sampling medium in the medium passage 2 to flow out to the liquid outlet 3 through the medium flow passage, and to previously release a part of the pressure at a relatively small flow rate.
Further, the contained angle of the conical section 41 and the inner wall of the medium channel 2 can be 0-45 degrees, so that the contained angle gap between the conical section 41 and the inner wall of the medium channel 2 flows out in a small flow before the sampling medium flows to the liquid outlet 3, the problem that the sampling medium can be suddenly released under the action of pressure, and the medium suddenly flows out to generate splash in the sampling process, so that sampling staff is scalded is avoided. Preferably, the included angle between the conical section 41 and the inner wall of the medium channel 2 can be 5-8 degrees, so that the flow of the sampling medium passing through the gap between the conical section 41 and the inner wall of the medium channel 2 is ensured to be stable, and the phenomenon of splashing is prevented from happening due to overlarge flow velocity.
Wherein according to an embodiment of the utility model the medium channel 2 and the liquid outlet 3 are arranged perpendicular to each other, the liquid outlet 3 communicates with a liquid outlet channel 5 extending obliquely towards the operating end of the plunger valve stem 4. So set up, the sample medium that flows out with the low discharge in advance through the contained angle space of conical section 41 and medium passageway 2 inner wall can flow out through liquid passageway 5 fast. Of course, the liquid outlet channel 5 may be in straight line communication with the liquid outlet 3, so long as the effect that the sampling medium flowing out through the liquid outlet 3 can flow out through the liquid outlet channel 5 quickly can be achieved.
Wherein, according to an embodiment of the utility model, the medium channel 2 comprises a first port and a second port formed at two axial ends of the sampler body 1, the first port is communicated with a conveying pipeline for conveying sampling medium, and the plunger valve rod 4 extends into the medium channel 2 through the second port. It can be understood that the sampling medium flows into the medium channel 2 in the sampler body 1 through the first port, and the plunger valve rod 4 passes into the medium channel 2 in the sampler body 1 through the second port, and the two are opposite to each other, so that the liquid outlet 3 perpendicular to the medium channel 2 can be opened or closed by controlling the plunger valve rod 4, thereby controlling whether the sampling medium flowing in from the first port flows out through the liquid outlet 3.
Wherein, according to an embodiment of the utility model, the plunger valve rod 4 is also provided with a straight cylinder section 42 which is in sliding fit with the medium channel 2, and the outer diameter of the straight cylinder section 42 is the same as the inner diameter of the medium channel 2. As shown in fig. 1, the outer diameter of the straight section 42 of the plunger valve rod 4 is adapted to the inner diameter of the medium channel 2, and when the straight section 42 slides to the position of closing the liquid outlet 3, the arrangement can prevent the sampling medium passing through the medium channel 2 from leaking out of the gap between the straight section 42 and the medium channel 2, thereby improving the sealing property.
Further, sealing elements respectively positioned at two sides of the liquid outlet 3 are arranged in the medium channel 2, and the straight barrel section 42 is in interference fit with the sealing elements. It can be appreciated that when the plunger valve rod 4 slides to close the liquid outlet, the straight barrel section 42 of the plunger valve rod 4 and the sealing elements at two sides of the liquid outlet 3 are arranged to be in a mutually abutting and interference fit mode, so that the tightness of the plunger valve sampler can be further improved.
Wherein according to an embodiment of the utility model the seal comprises a first sealing ring 6 arranged in the medium channel 2 adjacent to one side of the liquid outlet 3 and a second sealing ring 7 arranged in the medium channel 2 adjacent to the other side of the liquid outlet 3. Referring to fig. 1, the first sealing ring 6 and the second sealing ring 7 are disposed on both sides of the liquid outlet 3, respectively, and when the liquid outlet 3 is closed, the first sealing ring 6 and the second sealing ring 7 need to bear the pressure of the sampling medium flowing in through the medium channel 2, but also prevent the leakage of the sampling medium.
Wherein the first sealing ring 6 and the second sealing ring 7 may be polyurethane sealing rings, respectively. The sealing ring prepared from the polyurethane material has the advantages of wear resistance, temperature resistance, good sealing performance, degradability and the like, so that the sealing element is not easy to damage due to the pressure of a sampling medium, and the problem that the sampling medium is leaked due to the damage of the sealing element is further prevented.
Wherein according to one embodiment of the utility model, an operation counter bore for being matched with an operation tool is arranged on the end face of the operation end of the plunger valve rod 4. It will be appreciated that the plunger valve stem 4 is able to slide within the media passage 2 by rotating the operating counterbore on the operating end face of the plunger valve stem 4 with an operating tool, thereby opening or closing the liquid outlet 3. The operation counter bore can be an inner hexagonal counter bore, so that the inner hexagonal wrench or the torque wrench is beneficial to operating the plunger valve rod 4, and the operation is more convenient.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. The technical solution of the utility model can be subjected to a plurality of simple variants within the scope of the technical idea of the utility model. Including the various specific features being combined in any suitable manner. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (10)
1. A hand operated plunger valve sampler comprising:
the sampler comprises a sampler body (1), wherein the sampler body (1) is provided with a medium channel (2) for sampling medium to circulate and a liquid outlet (3) which is mutually communicated with the medium channel (2) in a crossing way;
a plunger valve stem (4), the plunger valve stem (4) slidably cooperating with the medium channel (2) to be slidable for opening or closing the liquid outlet (3),
wherein the plunger valve stem (4) and/or the medium channel (2) are formed as: when the plunger valve rod (4) slides in a direction towards opening the liquid outlet (3), the sampling medium in the medium channel (2) can start to flow out to the liquid outlet (3) before the free end of the plunger valve rod (4) reaches the liquid outlet (3).
2. Hand operated plunger valve sampler according to claim 1, characterized in that the part of the plunger valve stem (4) adjacent to its free end is formed with a conical section (41) tapering towards the free end to allow the sampling medium in the medium channel (2) to start flowing out to the liquid outlet (3) before the free end reaches the liquid outlet (3) when the plunger valve stem (4) is slid in a direction towards opening the liquid outlet (3).
3. Hand operated plunger valve sampler according to claim 2 characterized in that the angle between the conical section (41) and the inner wall of the medium channel (2) is 0-45 °.
4. Hand operated plunger valve sampler according to claim 1, characterized in that the medium channel (2) and the liquid outlet (3) are arranged perpendicular to each other, the liquid outlet (3) is connected to a liquid outlet channel (5) extending obliquely towards the handling end of the plunger valve stem (4).
5. Hand operated plunger valve sampler according to claim 1, characterized in that the medium channel (2) comprises a first port and a second port formed at the axial ends of the sampler body (1), the first port being in communication with a transport conduit for transporting the sampling medium, the plunger valve stem (4) extending into the medium channel (2) through the second port.
6. Hand operated plunger valve sampler according to claim 1, characterized in that the plunger valve stem (4) also has a straight barrel section (42) in sliding fit with the medium channel (2), the outer diameter of the straight barrel section (42) being the same size as the inner diameter of the medium channel (2).
7. Hand operated plunger valve sampler according to claim 6 characterized in that the medium channel (2) is provided with seals on both sides of the outlet (3) respectively, and the straight barrel section (42) is in interference fit with the seals.
8. Hand operated plug valve sampler according to claim 7, characterized in that the seal comprises a first sealing ring (6) arranged in the medium channel (2) and adjacent to one side of the liquid outlet (3) and a second sealing ring (7) arranged in the medium channel (2) and adjacent to the other side of the liquid outlet (3).
9. Hand operated plug valve sampler according to claim 8, characterized in that the first sealing ring (6) and the second sealing ring (7) are each polyurethane sealing rings.
10. Hand operated plunger valve sampler according to claim 1, characterized in that the handling end face of the plunger valve stem (4) is provided with an operating counter bore for cooperation with a handling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321431432.9U CN220367026U (en) | 2023-06-06 | 2023-06-06 | Hand plunger valve sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321431432.9U CN220367026U (en) | 2023-06-06 | 2023-06-06 | Hand plunger valve sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220367026U true CN220367026U (en) | 2024-01-19 |
Family
ID=89520568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321431432.9U Active CN220367026U (en) | 2023-06-06 | 2023-06-06 | Hand plunger valve sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220367026U (en) |
-
2023
- 2023-06-06 CN CN202321431432.9U patent/CN220367026U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4446887A (en) | Variable high pressure choke | |
| US7481124B2 (en) | Positive-displacement sampling apparatus | |
| WO2008048511A3 (en) | Valve assembly and system | |
| RU2747700C2 (en) | Rotary control valve containing a clamped valve seat | |
| CA2796921A1 (en) | Valve shaft apparatus for use with rotary valves | |
| US9194773B2 (en) | Sampling and blockage removal tool | |
| US2695036A (en) | Valve | |
| EP2179203B1 (en) | Valve arrangement | |
| CN220367026U (en) | Hand plunger valve sampler | |
| EP3156702B1 (en) | Multi-way valve having a valve seat ring | |
| CN210461730U (en) | High-temperature high-pressure needle valve with double-sealing and double-adjusting structure | |
| US5945611A (en) | Dual piston flow-through sampler | |
| RU67219U1 (en) | BALL VALVE | |
| US2078402A (en) | Releasable choke | |
| CN102563124A (en) | Three-position three-way plunger selector valve | |
| CN211975943U (en) | Leakage-proof two-piece ball valve | |
| CN211904798U (en) | Closed sampler | |
| CN113983185A (en) | Water valve with high sealing performance | |
| US4395382A (en) | Glassware stopcock with freeze extractor | |
| CN202561082U (en) | High-sealability cut-off valve | |
| CN107387812A (en) | A kind of adjustable copper valve of double fluid | |
| DE3115781A1 (en) | SHUT-OFF VALVE FOR REDUCED LEAKAGE LOSS | |
| CN104373077A (en) | Sampling device for oil well | |
| CN214118973U (en) | Stop valve body capable of distinguishing high end and low end | |
| CN216344038U (en) | Double ball valve of putting of two jam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |