CN106499828A - Sampling valve - Google Patents
Sampling valve Download PDFInfo
- Publication number
- CN106499828A CN106499828A CN201510564865.5A CN201510564865A CN106499828A CN 106499828 A CN106499828 A CN 106499828A CN 201510564865 A CN201510564865 A CN 201510564865A CN 106499828 A CN106499828 A CN 106499828A
- Authority
- CN
- China
- Prior art keywords
- valve
- sampling
- pressure
- valve rod
- inlet
- 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.)
- Pending
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000006837 decompression Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
- F16K1/04—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a sampling valve, comprising: the valve body comprises a valve cavity and a liquid inlet, and the liquid inlet is communicated with the valve cavity; the valve rod is used for opening or closing the liquid inlet and is movably arranged on the valve body; the sampling nozzle is arranged on the valve body and is communicated with the valve cavity; the pressure reducing assembly is arranged in the valve cavity and is arranged between the sampling nozzle and the liquid inlet along the flowing direction of the medium; the sealing member is arranged at the liquid inlet and matched with the valve rod so as to seal the liquid inlet when the valve rod seals the liquid inlet. Through the technical scheme provided by the invention, the problem that the sampling valve in the prior art is not suitable for sampling in a pipeline in a high-pressure environment can be solved.
Description
Technical field
The present invention relates to sampling valve technical field, in particular to a kind of sampling valve.
Background technology
Sampling valve is a kind of valve that can obtain dielectric sample in pipeline, and which is arranged on the sampling of the main crude oil pipeline of oil well outlet
On by-pass line, staff can obtain dielectric sample by sampling valve and carry out chemical analyses according to the dielectric sample.
Sampling valve of the prior art is as shown in figure 1, sampling valve includes：Valve body 1, sampling mouth 2, valve rod 3 and sealing valve
4.Wherein, sealing valve 4 is arranged in the valve pocket of valve body 1, and valve rod 3 is connected with valve body 1, and the end of valve rod 3 is provided with
Sealing cone 5, sampling mouth 2 are arranged on valve body 1, and sampling mouth 2 is connected with the valve pocket of valve body 1.Valve body 1 is being propped up with sampling
After pipe connection, move on control valve rod 3, the sealing cone 5 of 3 end of valve rod is fitted with the sealing valve 4 being arranged in valve pocket,
Now sampling valve is closed；Control valve rod 3 is moved down, the sealing valve 4 in the sealing cone 5 of 3 end of valve rod and valve pocket
Disengage, now in open mode, the medium sampled in arm is flowed in the valve pocket of valve body 1 from pipeline sampling valve, and from taking
Flow out at sample mouth 2, you can complete sampling work.
During medium of the sampling valve of the prior art in the case where environment under high pressure is obtained, medium can be sprayed from sampling mouth 2, so can be difficult
To obtain appropriate dielectric sample, therefore sampling valve of the prior art is not suitable in the pipeline of environment under high pressure.
Content of the invention
Present invention is primarily targeted at providing a kind of sampling valve, it is not suitable in high compression ring with solving sampling valve of the prior art
The problem sampled in the pipeline in border.
To achieve these goals, the invention provides a kind of sampling valve, sampling valve includes：Valve body, valve body include valve pocket and enter
Liquid mouth, inlet are connected with valve pocket；For the valve rod of opening and closing of fault inlet, valve rod is movably disposed on valve body；Take
Sample mouth, is arranged on valve body and is connected with valve pocket；For reducing the pressure relief assembly of pressure medium in valve pocket, pressure relief assembly is arranged on
Interior and along medium the flow direction of valve pocket is arranged between sampling mouth and inlet；Sealing member, sealing member are arranged at inlet,
Sealing member is coordinated with valve rod, when valve rod closes inlet, to seal to inlet.
Further, pressure relief assembly is set on valve rod.
Further, pressure relief assembly includes：At least one pressure-reducing ring, is provided with the vent of insertion setting, decompression on pressure-reducing ring
The outer peripheral edge of ring is fixed on the inwall of valve body, and the inner peripheral of pressure-reducing ring is equipped with valve rod, so that medium can only pass through decompression
Hole flow direction sampling mouth.
Further, pressure relief assembly includes multiple pressure-reducing rings, multiple pressure-reducing ring being arranged at axially spaced intervals in valve pocket along valve rod.
Further, the axis of the vent of two neighboring pressure-reducing ring is misaligned.
Further, vent is damping hole.
Further, sealing member annular is arranged on the inwall of valve body, on valve rod near inlet one end be first end, valve rod
First end the internal diameter with diameter greater than sealing member.
Further, valve rod includes that the first multidiameter and the second multidiameter, the diameter of the first multidiameter are less than the internal diameter of sealing member,
The internal diameter with diameter greater than sealing member of the second multidiameter, the second multidiameter form the first end of valve rod.
Further, the first multidiameter is additionally provided with changeover portion between the second multidiameter.
Further, sampling valve also includes：Inner sleeve, is arranged in valve pocket, and pressure relief assembly is arranged on the inside of inner sleeve.
Application technical scheme, by arranging pressure relief assembly so that the medium sample in the case where environment under high pressure is obtained in valve pocket
During product, medium can carry out release when the pressure relief assembly in valve pocket is flowed through, and when can so avoid sampling, medium is sprayed from sampling mouth
Go out, and then can control to obtain appropriate dielectric sample, meet the sampling needs of staff.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the sampling valve provided according to prior art；
Fig. 2 shows the structural representation of the sampling valve of offer according to embodiments of the present invention.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling：
1st, valve body；2nd, mouth is sampled；3rd, valve rod；4th, valve is sealed；5th, sealing cone；10th, valve body；11st, valve pocket；12、
Inlet；20th, valve rod；21st, the first multidiameter；22nd, the second multidiameter；30th, mouth is sampled；40th, pressure relief assembly；41、
Pressure-reducing ring；41a, vent；50th, sealing member.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
As shown in Fig. 2 the invention provides a kind of embodiment of sampling valve, sampling valve includes：Valve body 10, valve rod 20, sampling
Mouth 30 and pressure relief assembly 40.Wherein, valve pocket 11 is provided with valve body 10, the inlet 12 and valve pocket 11 on valve body 10
Connection.Valve rod 20 is located on valve body 10, and one end of valve rod 20 through valve pocket 11 and is located at inlet 12, valve rod 20
It is movably disposed on valve body 10, alternatively, valve rod 20 is threadedly coupled with valve body 10, valve rod 20 is moved relative to valve body 10
With opening and closing of fault inlet 12.Sample mouth 30 to be arranged on valve body 10, and sample mouth 30 and connect with valve pocket 11, medium
Flow into after valve pocket 11 from inlet 12, sampled mouth 30 flows out.Pressure relief assembly 40 is arranged in valve pocket 11, and is located at sampling
Between mouth 30 and inlet 12, so can reduce pressure through pressure relief assembly 40 before the sampled mouth 30 of medium flows out, reach drop
The purpose of low pressure medium.And in the present embodiment, the sampling valve also includes that sealing member 50, sealing member 50 are arranged on inlet
At 12, sealing member 50 is coordinated with valve rod 20, when valve rod 20 closes inlet 12, to seal to inlet 12.
Application technical scheme, after arranging pressure relief assembly 40 between sampling mouth 30 and inlet 12, in utilization, this takes
When sample valve is sampled, first pass through valve rod 20 and open inlet 12, medium is flowed in valve pocket 11 from inlet 12, medium enters valve
Can flow at sampling mouth 30 behind chamber 11, reduce pressure through pressure relief assembly 40 in flow process, reduce pressure medium, so as to keep away
Exempt from when high-pressure medium is obtained, medium is sprayed from sampling mouth 30, pollution sampling environment.And then staff can be easy to control
Medium flow field processed, obtains appropriate medium volume.
In the present embodiment, pressure relief assembly 40 is set on valve rod 20.Specifically, 40 annular of pressure relief assembly is arranged on valve pocket 11
Interior, the pressure relief assembly 40 includes at least one pressure-reducing ring 41, is provided with the vent 41a of insertion setting, decompression on pressure-reducing ring 41
The outer peripheral edge of ring 41 is fixed on the inwall of valve body 10, and the inner peripheral of pressure-reducing ring 41 is fitted with valve rod 20, alternatively, decompression
The internal diameter of ring 41 is coordinated with 20 gap of valve rod, so that after the medium flowed in valve pocket 11 has to pass through vent 41a decompressions,
Could flow out from sampling mouth 30.
In order to meet decompression needs, the pressure relief assembly 40 may include multiple pressure-reducing rings 41, and plurality of pressure-reducing ring 41 is along valve rod 20
Be arranged at axially spaced intervals in valve pocket 11.Alternatively, multiple pressure-reducing rings 41 are set in qually spaced in valve pocket 11.
In order to reach good effect of easing stress, the axis of the vent 41a of two neighboring pressure-reducing ring 41 is misaligned.In the present embodiment
In, each pressure-reducing ring 41 is provided with a vent 41a, the axis and valve rod of the vent 41a on two neighboring pressure-reducing ring 41
20 axis is generally aligned in the same plane.As shown in Fig. 2 medium is after being entered by inlet 12 in valve pocket 11, first passes through left side and subtract
Pressure hole 41a decompressions, then the vent 41a on right side is flowed into, then the vent 41a in left side is flowed into, so that medium is in valve pocket 11
Internal coiling rises, and can at utmost reduce pressure medium.
Wherein, vent 41a may be configured as throttle orifice, may be alternatively provided as damping hole.In order to simplify apparatus structure, reduce device into
Vent 41a in the present embodiment, is set to damping hole by this.
Specifically, 50 annular of sealing member is arranged on the inwall of valve body 10, valve rod 20 can with 50 interference fit of sealing member,
Also can valve rod 20 first end the internal diameter with diameter greater than sealing member 50, the first end of valve rod 20 and sealing member 50 coordinate to be carried out
Sealing.Wherein, on valve rod 20, one end of close inlet 12 is first end.
Alternatively, the valve rod 20 includes the first multidiameter 21 and the second multidiameter 22, and the diameter of the first multidiameter 21 is less than sealing
The internal diameter of part 50, the internal diameter with diameter greater than sealing member 50 of the second multidiameter 22, wherein, the second multidiameter 22 is used as valve rod
20 first end.
Alternatively, changeover portion will be set between the first multidiameter 21 and the second multidiameter 22, the first end for making valve rod 20 can be easy to
It is brought into close contact with sealing member 50.As the presently preferred embodiments, the changeover portion is taper.
Wherein, sealing member 50 may be configured as sealing ring, may be alternatively provided as seal receptacle, and in the present embodiment, sealing member 50 is arranged
For seal receptacle, as the presently preferred embodiments, it is set to seal valve seat by sealing member 50.
In the present embodiment, sampling valve also includes inner sleeve, and this is interior to be set in valve pocket 11, and pressure relief assembly 40 is arranged on inner sleeve
Internal.Specifically, sealing member 50 is also disposed inside inner sleeve, after medium is flowed in valve pocket 11 from inlet 12, in inner sleeve
Flowing, decompression, finally flow out from sampling mouth 30.
When the sampling valve provided using the present invention is sampled, turn valve rod 20 makes which descending, and valve rod 20 is disengaged with sealing valve seat,
Inlet 12 is in opening, and high-pressure medium enters valve pocket 11 through inlet 12, then in turn through damping hole, two adjacent
Space between pressure-reducing ring 41, eventually passes sampling mouth 30 and flows out.In above-mentioned path, high-pressure medium subtracts through helical flow path
Pressure is so as to reducing pressure, it is to avoid in sampling, medium is sprayed from sampling mouth 30, and then can be easy to staff's control to be situated between
Mass flow, obtains appropriate medium volume.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art
For, the present invention can have various modifications and variations.All any modifications that within the spirit and principles in the present invention, is made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of sampling valve, it is characterised in that the sampling valve includes：
Valve body (10), described valve body (10) include valve pocket (11) and inlet (12), inlet (12) and
Described valve pocket (11) connect；
Valve rod (20) for inlet described in opening and closing of fault (12), valve rod (20) are movably disposed at institute
State on valve body (10)；
Sampling mouth (30), is arranged on the valve body (10) above and is connected with the valve pocket (11)；
For reducing the pressure relief assembly (40) of the interior pressure medium of the valve pocket (11), pressure relief assembly (40) are arranged on
Valve pocket (11) interior and along the medium flow direction is arranged on the sampling mouth (30) and the inlet (12)
Between；
Sealing member (50), sealing member (50) are arranged on the inlet (12) place, sealing member (50) with
Described valve rod (20) coordinate, with when the valve rod (20) closes inlet (12), to the inlet (12)
Sealed.
2. sampling valve according to claim 1, it is characterised in that pressure relief assembly (40) are set in the valve rod (20)
On.
3. sampling valve according to claim 2, it is characterised in that pressure relief assembly (40) include：
At least one pressure-reducing ring (41), is provided with the vent (41a) of insertion setting on pressure-reducing ring (41), described
The outer peripheral edge of pressure-reducing ring (41) is fixed on the inwall of the valve body (10), the inner peripheral of pressure-reducing ring (41) with
Valve rod (20) are equipped with, so that the medium can only flow to sampling mouth (30) by the vent (41a).
4. sampling valve according to claim 3, it is characterised in that described pressure relief assembly (40) include multiple pressure-reducing rings
(41), the plurality of pressure-reducing ring (41) being arranged at axially spaced intervals in the valve pocket (11) along the valve rod (20).
5. sampling valve according to claim 4, it is characterised in that the vent (41a) of two neighboring pressure-reducing ring (41)
Axis misaligned.
6. the sampling valve according to any one of claim 3 to 5, it is characterised in that vent (41a) is damping hole.
7. sampling valve according to claim 1, it is characterised in that sealing member (50) annular is arranged on the valve body (10)
Inwall on, described valve rod (20) upper one end near described inlet (12) is first end, valve rod (20)
First end the internal diameter with diameter greater than the sealing member (50).
8. sampling valve according to claim 7, it is characterised in that described valve rod (20) include the first multidiameter (21) and
Second multidiameter (22), the internal diameter of the diameter of the first multidiameter (21) less than the sealing member (50), described the
The internal diameter with diameter greater than the sealing member (50) of two multidiameters (22), described second multidiameter (22) form described
The first end of valve rod (20).
9. sampling valve according to claim 8, it is characterised in that the first multidiameter (21) to described second multidiameter
(22) changeover portion is additionally provided between.
10. sampling valve according to claim 1, it is characterised in that the sampling valve also includes：
Inner sleeve, is arranged in the valve pocket (11), and pressure relief assembly (40) are arranged on the inside of the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564865.5A CN106499828A (en) | 2015-09-07 | 2015-09-07 | Sampling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564865.5A CN106499828A (en) | 2015-09-07 | 2015-09-07 | Sampling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106499828A true CN106499828A (en) | 2017-03-15 |
Family
ID=58287309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564865.5A Pending CN106499828A (en) | 2015-09-07 | 2015-09-07 | Sampling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576380A (en) * | 2022-03-15 | 2022-06-03 | 长春电子科技学院 | Sampling valve with labyrinth damping structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968844A (en) * | 1974-09-19 | 1976-07-13 | Continental Oil Company | Determining the extent of entry of fluids into a borehole during drilling |
| CN1619096A (en) * | 2003-11-18 | 2005-05-25 | 戴义明 | Antifreezing sampling valve used for oilfield well |
| CN201277032Y (en) * | 2008-09-27 | 2009-07-22 | 中国石油化工股份有限公司胜利油田分公司滨南采油厂 | Anti-corrosion high pressure sampler of oil-field flooding system |
| CN202195069U (en) * | 2011-07-28 | 2012-04-18 | 陈月标 | Multi-stage damping sampling valve |
| CN102914452A (en) * | 2012-10-19 | 2013-02-06 | 瑞安市良精石化机械厂 | Sampling device capable of reducing pressure of fluid in pipeline |
-
2015
- 2015-09-07 CN CN201510564865.5A patent/CN106499828A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968844A (en) * | 1974-09-19 | 1976-07-13 | Continental Oil Company | Determining the extent of entry of fluids into a borehole during drilling |
| CN1619096A (en) * | 2003-11-18 | 2005-05-25 | 戴义明 | Antifreezing sampling valve used for oilfield well |
| CN201277032Y (en) * | 2008-09-27 | 2009-07-22 | 中国石油化工股份有限公司胜利油田分公司滨南采油厂 | Anti-corrosion high pressure sampler of oil-field flooding system |
| CN202195069U (en) * | 2011-07-28 | 2012-04-18 | 陈月标 | Multi-stage damping sampling valve |
| CN102914452A (en) * | 2012-10-19 | 2013-02-06 | 瑞安市良精石化机械厂 | Sampling device capable of reducing pressure of fluid in pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576380A (en) * | 2022-03-15 | 2022-06-03 | 长春电子科技学院 | Sampling valve with labyrinth damping structure |
| CN114576380B (en) * | 2022-03-15 | 2023-07-04 | 长春电子科技学院 | Sampling valve with labyrinth damping structure |
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