CN205955972U - Stifled fixed valve of anti -sticking for oil -well pump - Google Patents
Stifled fixed valve of anti -sticking for oil -well pump Download PDFInfo
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- CN205955972U CN205955972U CN201620790193.XU CN201620790193U CN205955972U CN 205955972 U CN205955972 U CN 205955972U CN 201620790193 U CN201620790193 U CN 201620790193U CN 205955972 U CN205955972 U CN 205955972U
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- standing valve
- fixed valve
- sand
- oil
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Abstract
The utility model relates to a stifled fixed valve of anti -sticking for oil -well pump, by joint under fixed valve cover, fixed valve ball, fixed valve seat, fixed valve pressing connector and the fixed valve, the upper and lower both ends of fixed valve cover all are equipped with internal thread and external screw thread, and fixed valve covers the end and is connected with the fixed valve top connection through the external screw thread, and fixed valve covers the fixed valve 1 sand control cover of end, emptying aperture female connection sand control pipe in the fixed valve pressing connector lower extreme is connected to fixed valve cover lower extreme internal thread with fixed valve pressing connector. The utility model discloses both ends install sand prevention device additional the fixed valve about, have increased the stifled protection of fixed valve anti -sticking from two upper and lower directions, and avoid coming from in the oil pipe or the foreign matter in the oil sleeve annulus shape space gets into fixed valve, can effectively solve the problem that oil -well pump fixed valve foreign matter card blocked up.
Description
Technical field
The utility model is related to a kind of oil well pump Anti-blockage standing valve, belongs to petroleum industry mechanical oil recovery down-hole supporting
Technical field of tools.
Background technology
Sucker rod pumping is the widest oil production method of current domestic and international application, accounts for artificial lift producing well number at home
More than 90%, wherein oil well pump is an important part in underground equipment, conventional oil well pump standing valve upper and lower side respectively with
Pump barrel, tail pipe are joined directly together, and do not design Anti-blockage protection, in process of production, are shaked out, corrosion and scaling, eccentric wear, unclear
The factors such as clean operation affect, and easily cause the foreign matters such as sand, dirt and enter in standing valve, so that standing valve was lost efficacy because of blocking, from
And shorten pump detection period, increase maintenance cost, affect oil development benefit.Although conventional oil well pump can be by joining on tail pipe
Cover sand-proof pipe to stop foreign matter in oil jacket annular space from entering in pump, but the foreign matters within from oil pipe are effectively protected, still
So cannot fundamentally solve the problems, such as standing valve blocking.
A kind of anti-seizing oil pump of patent CN204692059U, including oil pipe, fixed plunger, movable pump barrel, delivery valve, enters
Fuel tap, T-shaped runner, screen casing, sand-precipitating tube, fixed plunger are cased with movable pump barrel, have T-shaped runner in fixed plunger.T-shaped stream
The two ends of road horizontal component are run through oil pipe and are connected with oil jacket annular space, and are cased with screen casing on the inlet of two ends, and fluid is through screen casing
Converge in T-shaped runner vertical section after filtration, after sand grains collision, deceleration, sink under gravity and part returns in sleeve pipe, entrance
The sand grains of plunger enters oil pipe through delivery valve, and the annular space through pump barrel and oil pipe enters pump barrel bottom sand-precipitating tube and reaches anti-sticking mesh
's.Weak point：Enter under movable pump barrel inside oil pipe, limited by pump barrel external diameter and pipe aperture, ring between oil pipe and pump barrel
Shape spatial joint clearance is less, and major diameter particle cannot be introduced into；In addition standing valve bottom T-shaped runner stops sand grains, mistake by mesh
Filter is less efficient, and due to the not anti-card protection in standing valve upper end, the particle entering in pump is still likely to result in standing valve blocking
Lost efficacy.
A kind of patent CN204152769U double fixed valve anti-seizing oil pump, including inside and outside socket tube, accept cylinder, baffle plate and
Inlet opening, double fixed valve, travelling valve, umbrella Cone valve, wherein accept tube inner chamber be fixedly provided with a pair of standing valve ball and
Ball seat；Travelling valve seat above is provided with nomadic valve cover, and pump barrel upper end is provided with umbrella Cone valve, and this umbrella Cone valve is by lower end back taper
The umbrella centrum composition of body and its upper end, the maximum outside diameter of reverse taper is more than pump barrel internal diameter, less than pump barrel external diameter, plays switch and makees
With.Umbrella cone diameter is more than pump barrel external diameter, less than accepting cylinder internal diameter, guides oil pipe internal sand grains in upper end to enter and accepts cylinder with outward
The annular space of cylinder, thus realize oil well pump anti-sticking function.Weak point：Accept between cylinder and outer tube annular space gap relatively
Little, major diameter particle cannot be introduced into；Liquor stream is directly entered standing valve through baffle plate inlet opening, and particulate matter does not pass through abundant mistake
Filter；The anti-card protection in standing valve upper end is not enough, enters the particulate matter in pump and is likely to result in the inefficacy of standing valve blocking.
A kind of new anti-seizing oil pump of patent CN203161503U, this kind of pump plunger assembly include anti-breaking valve valve bonnet,
Plunger short circuit, upper traveling valve, plunger body, lower travelling valve, pipe close；Pump barrel assembly by drive ring, centering ring, sand sediment pipe,
Box cupling, standing valve pair, standing valve cover and standing valve joint composition under pump barrel, its assembly for plunger length is more than pump barrel assembly,
Anti-breaking valve cover is in drive ring top all the time, and outside pump barrel, anti-breaking valve cover diameter is consistent with diameter of plunger, does not become
Footpath.Drive ring, sand sediment pipe, pump barrel and pump barrel top box cupling are joined together to form an annular sand setting space.This anti-sticking is taken out
Oil pump passes through to design annular sand setting space outside pump barrel, prevents top foreign matter sedimentation holddown phenomenon.Weak point：Sand sediment pipe, pump
Between cylinder, annular space gap is less, and major diameter particle cannot be introduced into；Standing valve upper and lower side no anti-sticking protection mechanism, enters pump
Interior particulate matter remains to cause standing valve blocking problem.
Utility model content
The purpose of this utility model is to overcome the oil well pump standing valve of above-mentioned prior art easily by foreign matter block
Problem, a kind of Anti-blockage standing valve is provided.
The utility model is all by standing valve cover, standing valve ball, standing valve seat, standing valve pressed joint and fixation
You form in lower contact, and standing valve cover upper/lower terminal is equipped with internal thread and external screw thread, and external screw thread is passed through in standing valve cover upper end
It is connected with standing valve top connection, the internal thread of standing valve cover upper end connects sand cap；Standing valve cover lower end internal thread with
Standing valve pressed joint connects, and standing valve pressed joint lower end hollow hole internal thread connects sand-proof pipe.
Sand cap is the tubular body of upper end closed, and its external diameter is less than the internal diameter of standing valve top connection, tube wall at an upper portion thereof
On have at least two radial direction fluid holes.
Sand cap top is beveled structure.
Sand cap is connected with the internal thread of standing valve cover upper end by eccentric joint, makes to connect on sand cap and standing valve
Form eccentric sand trap cavity between head.
Sand-proof pipe is the tubular structure of lower end closed, and its tube wall has slot.
The utility model improves the design of standing valve cover in standing valve upper end, increased sand cap, sand cap with solid
Determine to form eccentric shape sand trap cavity between valve top connection it is ensured that major diameter foreign matter can effectively settle, sand cap top tube wall is opened
There is radial direction fluid hole, liquor stream is changed into Radial Flow from vertical herein, be conducive to particulate matter to slow down, settle into sand trap cavity；Lower end
Improve the design of standing valve pressed joint, sand-proof pipe is connected by internal thread, stop in entrance liquor stream from the dirt within oil pipe
Deng particulate matter.Improved by above-mentioned design, strengthen the protection of the upper and lower both direction of standing valve anti-foreign matter block, can effectively reduce
Standing valve blocking phenomenon.
Brief description
Fig. 1 is the utility model structural representation.
Specific embodiment
As shown in Figure 1, oil well pump of the present utility model Anti-blockage standing valve is by standing valve cover 5, standing valve ball
6th, standing valve seat 7, standing valve pressed joint 8 and standing valve lower contact 9 form, and standing valve cover 5 upper/lower terminal is all provided with
There are internal thread and external screw thread, standing valve cover 5 upper end is connected with standing valve top connection 4 by external screw thread, on standing valve cover 5
The internal thread at end connects sand cap 2；Standing valve cover 5 lower end internal thread is connected with standing valve pressed joint 8, standing valve pressure
Tight coupling 8 lower end hollow hole internal thread connects sand-proof pipe 10.
Described sand cap 2 is the tubular body of upper end closed, and its external diameter is less than the internal diameter of standing valve top connection 4, thereon
At least two radial direction fluid holes 1 are had on portion's tube wall.
Described sand cap 2 top is beveled structure, is conducive to particulate matter to decline landing to foreign matter reservoir space.
Described sand cap 2 is connected with the internal thread of standing valve cover 5 upper end by eccentric joint 3, makes sand cap 2 and fixes
Form eccentric sand trap cavity it is ensured that larger-diameter foreign matter can effectively settle between valve top connection 4.
Described sand-proof pipe 10 is the tubular structure of lower end closed, and its tube wall has slot.
During going into the well, standing valve top connection 4 is connected with oil pump sleeve lower end, and standing valve lower contact 9 is with tail pipe even
Connect, after entering well, fluid enters standing valve after slot sand-proof pipe 10 filtration, enters back into the sand cap 2 on top, through sand cap 2 footpath
Enter in pump to fluid hole 1, the sand on standing valve top and foreign matter sink in sand trap cavity, so increased from upper and lower both direction
Anti-blockage is protected, it is to avoid the foreign matter in oil pipe or in oil sets annular space enters standing valve, can effectively solving oil well pump
The problem of standing valve foreign matter block.
Claims (5)
1. a kind of oil well pump Anti-blockage standing valve, by standing valve cover (5), standing valve ball (6), standing valve seat (7),
Standing valve pressed joint (8) and standing valve lower contact (9) composition, is characterized in that：Standing valve cover (5) upper/lower terminal is equal
It is provided with internal thread and external screw thread, standing valve cover (5) upper end is connected with standing valve top connection (4) by external screw thread, fixation is all
You connect sand cap (2) by the internal thread of cover (5) upper end；Standing valve cover (5) lower end internal thread and standing valve pressed joint (8)
Connect, standing valve pressed joint (8) lower end hollow hole internal thread connects sand-proof pipe (10).
2. a kind of oil well pump Anti-blockage standing valve according to claim 1, is characterized in that：Described sand cap (2) is upper
The tubular body that end seal is closed, its external diameter is less than the internal diameter of standing valve top connection (4), has at least two footpaths at an upper portion thereof on tube wall
To fluid hole (1).
3. a kind of oil well pump Anti-blockage standing valve according to claim 1 or claim 2, is characterized in that：Described sand cap (2) top
Hold as beveled structure.
4. a kind of oil well pump Anti-blockage standing valve according to claim 1 or claim 2, is characterized in that：Described sand cap (2) is led to
The internal thread crossing eccentric joint (3) with standing valve cover (5) upper end is connected, make sand cap (2) and standing valve top connection (4) it
Between form eccentric sand trap cavity.
5. a kind of oil well pump Anti-blockage standing valve according to claim 1 or claim 2, is characterized in that：Described sand-proof pipe (10)
For the tubular structure of lower end closed, its tube wall has slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790193.XU CN205955972U (en) | 2016-07-25 | 2016-07-25 | Stifled fixed valve of anti -sticking for oil -well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790193.XU CN205955972U (en) | 2016-07-25 | 2016-07-25 | Stifled fixed valve of anti -sticking for oil -well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955972U true CN205955972U (en) | 2017-02-15 |
Family
ID=57971208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790193.XU Active CN205955972U (en) | 2016-07-25 | 2016-07-25 | Stifled fixed valve of anti -sticking for oil -well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364926A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Coal slime cleaning device |
| CN114687707A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Quick flowing back tubular column of machine pump anti-sticking |
-
2016
- 2016-07-25 CN CN201620790193.XU patent/CN205955972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364926A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Coal slime cleaning device |
| CN114687707A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Quick flowing back tubular column of machine pump anti-sticking |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |