CN105042102B - A kind of oil field is with antifreeze wedge-shaped slide valve - Google Patents
A kind of oil field is with antifreeze wedge-shaped slide valve Download PDFInfo
- Publication number
- CN105042102B CN105042102B CN201510340905.8A CN201510340905A CN105042102B CN 105042102 B CN105042102 B CN 105042102B CN 201510340905 A CN201510340905 A CN 201510340905A CN 105042102 B CN105042102 B CN 105042102B
- Authority
- CN
- China
- Prior art keywords
- passage
- flashboard
- valve
- cavity volume
- wedge
- 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
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/312—Line blinds
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The present invention relates to a kind of oil field with antifreeze wedge-shaped slide valve, it is that a series of passage is provided with valve rod and flashboard, flashboard chamber is communicated with pipeline under certain conditions, so, in the presence of volumetric expansion, pressure caused by being frozen in flashboard intracavitary go up, mixture of ice and water can reenter pipeline from flashboard chamber.The present invention is simple in construction, available for solving at present at low temperature because flashboard intracavitary freeze caused by volumetric expansion, and then the problem of cause valve fracture failure.
Description
Technical field
The invention belongs to oil field equipment field, it is related to a kind of oil field with antifreeze wedge-shaped slide valve.
Background technology
North of china in winter temperature is low, so, oil, the phenomenon of well gate valve bursting by freezing at low ambient temperatures happen occasionally.Work as very much lock
Valve is when opening, and internal flashboard chamber can enter the pipeline medium of high pressure, when being again switched off, and internal high pressure is situated between
Matter will stay in flashboard chamber and can not discharge.When temperature is low, the water of flashboard intracavitary will expand because of icing, with temperature
The lasting reduction of degree, the volume of expansion can gradually increase, when the design yield strength that can bear more than gate valve casing, gate valve
Housing ftractures or at the root of screw thread（Stress concentration point）Fracture, so as to cause the damage of gate valve.Environment is not only polluted, and
Influence production.Accordingly, it would be desirable to be further improved to the device.
The content of the invention
It is an object of the invention to provide a kind of oil field with antifreeze wedge-shaped slide valve, solve at present at low temperature, because flashboard
Intracavitary freeze caused by volumetric expansion, and then the problem of cause valve fracture failure.
The present invention is achieved through the following technical solutions：A kind of oil field with antifreeze wedge-shaped slide valve, including valve body, valve rod and
Flashboard, valve rod is located at valve inner, is flashboard chamber, valve stem end connection flashboard between valve rod and valve body；Opened on described valve rod
There is passage one, passage one is the transverse branch connection flashboard chamber in T-shaped or L-type, passage one；There is cavity volume flashboard center longitudinal direction, holds
Chamber is divided into thick section and thin segment two parts, cavity volume from top to bottom is sequentially arranged with end cover, unidirectional valve head and back-moving spring, its
In, end cover center longitudinal direction is provided with passage two, and passage two is communicated with longitudinal branch in the passage one on valve rod；Unidirectional valve head
Top is in contact with end cover lower edge and blocks passage two, and unidirectional valve head bottom is placed exactly between the thick section of cavity volume and thin segment
Back-moving spring is housed at step, and between bottom and cavity volume bottom surface, passage three is provided with unidirectional valve head, passage three is T-shaped or L
Transverse branch in type, passage three connects the thick section of cavity volume, and longitudinal branch connects the thin segment of cavity volume；Described flashboard side is horizontal
Passage four is provided with, passage four is connected with the thin segment of cavity volume.
Further, described check valve overhead is wedge shape.
Further, it is also equipped with O-ring seal between described end cover and flashboard.
Using the good effect of above-mentioned technical proposal：The present invention is simple in construction, and can freeze caused body in flashboard intracavitary
During product expansion, mixture of ice and water is discharged in pipeline again, the pressure caused by flashboard intracavitary freezes fundamentally is avoided
It is too high, the problem of causing valve fracture failure.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 enlarged schematic partial view.
In figure, 1 valve body, 2 valve rods, 3 flashboards, 4 flashboard chambers, 5 passages one, 6 cavity volumes, 7 end covers, 8 unidirectional valve heads, 9 answer
Position spring, 10 passages two, 11 passages three, 12 passages four, 13 O-ring seals, 14 metallic packing rings.
Embodiment
Technical scheme is described further below in conjunction with the accompanying drawings, but should not be construed as the limit to the present invention
System：
Fig. 1 is the structural representation of the present invention, and Fig. 2 is Fig. 1 enlarged schematic partial view, as illustrated, a kind of oil field is used
Antifreeze wedge-shaped slide valve, including valve body 1, valve rod 2 and flashboard 3, valve rod 2 are located inside valve body 1, are lock between valve rod 2 and valve body 1
Plate chamber 4, the end of valve rod 2 connection flashboard 3.Passage 1 is provided with described valve rod 2, during passage 1 is T-shaped or L-type, passage 1
Transverse branch connection flashboard chamber 4.There is cavity volume 6 center of flashboard 3 longitudinal direction, and cavity volume 6 is divided into thick section and thin segment two parts from top to bottom,
End cover 7, unidirectional valve head 8 and back-moving spring 9 are sequentially arranged with cavity volume 6, wherein, the center of end cover 7 longitudinal direction is provided with passage
2 10, passage 2 10 is communicated with longitudinal branch in the passage 1 on valve rod 2, the unidirectional top of valve head 8 and the lower edge of end cover 7
It is in contact and blocks passage 2 10, the unidirectional bottom of valve head 8 is placed exactly at the step between the thick section of cavity volume 6 and thin segment so that is single
To there is certain space between the both sides of valve head 8 and flashboard 3, and unidirectional back-moving spring is housed between the bottom of valve head 8 and the bottom surface of cavity volume 6
9, back-moving spring can drive unidirectional valve head to move up and down, once unidirectional valve head is moved down, after departing from end cover, passage two
Communicated with cavity volume, medium can from passage one, passage two enter unidirectional valve head both sides, that is, cavity volume thick section.Unidirectionally
It is provided with passage 3 11 on valve head 8, passage 3 11 is the thick section that transverse branch in T-shaped or L-type, passage 3 11 connects cavity volume 6, is indulged
The thin segment of cavity volume 6 is connected to branch, the effect of passage three is the thin segment that medium can be allowed to enter cavity volume from the thick section of cavity volume.Institute
The side of flashboard 3 stated laterally is provided with passage 4 12, and passage 4 12 is connected with the thin segment of cavity volume 6, it is ensured that do not influenceing flashboard just
It will be discharged on the premise of Chang Gongneng outside the mixture of ice and water in cavity volume in pipeline.
The described top of unidirectional valve head 8 is wedge shape, is easy to medium to open one-way cock top, and to passage at the top of one-way cock
Two sealing effectiveness is more preferable.
In order to further keep sealing, O-ring seal 13 is also equipped between described end cover 7 and flashboard 3.
In use, flashboard intracavitary is full of medium, if be not at low temperature environment, the medium volume of flashboard intracavitary would not
Expansion, now, the top contact end cover lower edge of unidirectional valve head, passage two are in closed state.When the flashboard full of medium
At low ambient temperatures, the water in medium is inside from outside for chamber（Liquid center）It experienced liquid（Water）- solid-liquid admixture（Frozen water
Mixture）- solid-state（Ice）State transformation, and outside-in gradually develops, when under solid-liquid admixture, volume is
Through starting expansion, and cause the pressure rise of flashboard intracavitary, and more than the pressure medium in pipeline.Now, mixture of ice and water exists
In the presence of pressure, slowly into the passage one on valve rod, longitudinal branch is flowed to from transverse branch, subsequently on end cover
Passage two.Then, opening one-way valve head is pushed up so that unidirectional valve head is moved down, after unidirectional valve head is moved down so that passage two and check valve
The thick section of cavity volume of head both sides is connected, and then is communicated with the passage three on unidirectional valve head, and mixture of ice and water is entered after passage three, from
Unidirectional valve head bottom enters the thin segment of cavity volume, and then from the passage four of flashboard side, pipeline is discharged into through metallic packing ring 14, from
And reduce the pressure of flashboard intracavitary.
The present invention is simple in construction, can arrange mixture of ice and water again when flashboard intracavitary freezes caused volumetric expansion
Into pipeline, the hypertonia caused by flashboard intracavitary freezes, the problem of causing valve fracture failure are fundamentally avoided.
Claims (3)
1. a kind of oil field antifreeze wedge-shaped slide valve, including valve body（1）, valve rod（2）And flashboard（3）, valve rod（2）Positioned at valve body
（1）Inside, valve rod（2）And valve body（1）Between be flashboard chamber（4）, valve rod（2）End connects flashboard（3）, it is characterised in that：Institute
The valve rod stated（2）On be provided with passage one（5）, passage one（5）For T-shaped or L-type, passage one（5）In transverse branch connection flashboard
Chamber（4）；Flashboard（3）There is cavity volume central longitudinal direction（6）, cavity volume（6）It is divided into thick section and thin segment two parts, cavity volume from top to bottom（6）It is interior
It is sequentially arranged with end cover（7）, unidirectional valve head（8）And back-moving spring（9）, wherein, end cover（7）Central longitudinal direction is provided with passage
Two（10）, passage two（10）With valve rod（2）On passage one（5）In longitudinal branch communicate；Unidirectional valve head（8）Top and sealing
End cap（7）Lower edge is in contact passage two（10）Closure, unidirectional valve head（8）Bottom is placed exactly in cavity volume（6）Thick section and thin segment it
Between step at, and bottom and cavity volume（6）Back-moving spring is housed between bottom surface（9）, unidirectional valve head（8）On be provided with passage three
（11）, passage three（11）For T-shaped or L-type, passage three（11）In transverse branch connection cavity volume（6）Thick section, longitudinal branch connects
Logical cavity volume（6）Thin segment；Described flashboard（3）Side is laterally provided with passage four（12）, passage four（12）And cavity volume（6）Thin segment
It is connected.
2. oil field according to claim 1 is with antifreeze wedge-shaped slide valve, it is characterised in that：Described unidirectional valve head（8）Top
Portion is wedge shape.
3. oil field according to claim 1 is with antifreeze wedge-shaped slide valve, it is characterised in that：Described end cover（7）With
Flashboard（3）Between be also equipped with O-ring seal（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340905.8A CN105042102B (en) | 2015-06-19 | 2015-06-19 | A kind of oil field is with antifreeze wedge-shaped slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340905.8A CN105042102B (en) | 2015-06-19 | 2015-06-19 | A kind of oil field is with antifreeze wedge-shaped slide valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042102A CN105042102A (en) | 2015-11-11 |
| CN105042102B true CN105042102B (en) | 2017-09-29 |
Family
ID=54448910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510340905.8A Active CN105042102B (en) | 2015-06-19 | 2015-06-19 | A kind of oil field is with antifreeze wedge-shaped slide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042102B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490661A (en) * | 1974-02-06 | 1977-11-02 | Willis Oil Tool Co | Safety shut-off valve |
| JP2002061604A (en) * | 2000-08-17 | 2002-02-28 | Kawasaki Heavy Ind Ltd | Regeneration switching valve for hydraulic cylinder |
| CN103557340A (en) * | 2013-11-19 | 2014-02-05 | 兰州理工大学 | Plate gate valve for adjusting flow rate |
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
-
2015
- 2015-06-19 CN CN201510340905.8A patent/CN105042102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1490661A (en) * | 1974-02-06 | 1977-11-02 | Willis Oil Tool Co | Safety shut-off valve |
| JP2002061604A (en) * | 2000-08-17 | 2002-02-28 | Kawasaki Heavy Ind Ltd | Regeneration switching valve for hydraulic cylinder |
| CN103557340A (en) * | 2013-11-19 | 2014-02-05 | 兰州理工大学 | Plate gate valve for adjusting flow rate |
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105042102A (en) | 2015-11-11 |
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