CN208473771U - Blowout prevention valve - Google Patents
Blowout prevention valve Download PDFInfo
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- CN208473771U CN208473771U CN201821057258.5U CN201821057258U CN208473771U CN 208473771 U CN208473771 U CN 208473771U CN 201821057258 U CN201821057258 U CN 201821057258U CN 208473771 U CN208473771 U CN 208473771U
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- shell
- spool
- connect
- blowout prevention
- prevention valve
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Abstract
The utility model discloses a kind of blowout prevention valves, comprising: the top connection for connecting with oil pump sleeve；The shell being connect with top connection；The positioning sleeve being connect with shell upper end inner wall；Axially slidably it is arranged in shell, the spool that upper end offsets with positioning sleeve inner wall is provided with axial passage, the short slot that elongated slot is provided on outer wall, is connected to elongated slot；Seat is in the rotary sleeve in shell, to offset with positioning sleeve bottom wall；It connect, and sliding pin in axial sliding can be slided between elongated slot and short slot and under the shock of oil well pump pump plug in elongated slot with rotary sleeve；The reset spring being sleeved on spool, and in its natural state, upper and lower end offsets with spool upper end, the intracorporal limiting section of shell respectively；Setting in the intracorporal sphere of shell, support spring, sphere support spring in the raw when, while offseting with limiting section, spool bottom wall, when sliding pin is located at short slot, with gap between limiting section；Lower contact connected to the housing, for being connect with standing valve for oil-well pump.
Description
Technical field
The utility model relates to exploitation of oil-gas field technical field, in particular to a kind of blowout prevention valve.
Background technique
During exploitation of oil-gas field, if the liquid in pit shaft is overflowed from well head, not only pollute the environment, Er Qieyi
Blowout is caused, therefore, it is necessary to provide a kind of blowout prevention valve, so that tubing string rises during removing, oil pipe channel, which is in, closes shape
State.
In the prior art, electric switch usually is set in the pump barrel bottom of oil well pump, using as blowout prevention valve, and then can plays
Open, close the effect in oil pipe channel.
The existing technology has at least the following problems for designer's discovery:
The blowout prevention valve that the prior art provides, need to be transformed well head, increase operation intensity and operating cost, unfavorable
In popularization.
Utility model content
The utility model embodiment provides a kind of blowout prevention valve, can solve the above problem.The technical solution is as follows:
A kind of blowout prevention valve is provided, the blowout prevention valve includes:
The top connection being connect for the pump barrel with oil well pump；
The shell being connect with the top connection；
The positioning sleeve being connect with the upper end inner wall of the shell；
Axially slidably it is arranged in the shell, the spool that the inner wall of upper end and the positioning offsets, the spool
On be provided with axial passage, the short slot that elongated slot is additionally provided on outer wall, is connected to the elongated slot；
Seat is in the shell, and the rotary sleeve to offset with the positioning sleeve bottom wall；
Connect with the rotary sleeve, and can in the elongated slot sliding pin in axial sliding, the sliding pin is in the oil well pump
Pump plug hit under, can be slided between the elongated slot and the short slot；
The reset spring being sleeved on the spool, the reset spring in its natural state, upper and lower end respectively with it is described
The upper end of spool, the intracorporal limiting section of the shell offset；
Setting in the intracorporal sphere of the shell, support spring, the sphere the support spring in the raw when,
The lower end with the limiting section, the spool offsets simultaneously, and when the sliding pin is located at the short slot, with the limiting section
Between have gap；
The lower contact being connect with the shell, for being connect with the fixed valve of the oil well pump.
In a kind of possible design, the spool includes: from top to bottom sequentially connected major diameter section, path section；
The major diameter and the inner wall of the positioning sleeve offset, and the axial passage, the length are provided in the major diameter section
Slot and the short slot；
The reset spring is sleeved in the path section.
In a kind of possible design, the blowout prevention valve further include: the righting part being connect with the limiting section, for being set with
On the spool.
In a kind of possible design, the righting part includes: inner ring body, is sleeved on the inner ring body by supporter
Outer ring body；
The outer ring body is connect with the limiting section；
The inner ring body is for being sleeved on the spool.
In a kind of possible design, the supporter includes: circumferentially spaced setting in the inner ring body and described outer
Multiple support plates between ring body.
In a kind of possible design, spring base is provided on the inner wall of the lower contact, the support spring seat is in institute
It states on spring base.
In a kind of possible design, the spring base includes: the ontology connecting with the lower contact, with the ontology
The retention bead of lower end connection；
The upper end opening of the ontology, lower end are provided with multiple through-holes；
The retention bead is for being set in the support spring.
In a kind of possible design, the bottom diameter of the limiting section is from top to bottom gradually increased.
In a kind of possible design, the top connection is threadedly coupled with the shell；
The shell is threadedly coupled with the positioning sleeve；
The shell is also threadedly coupled with the lower contact.
In a kind of possible design, the top connection is threadedly coupled with the pump barrel；
The lower contact is threadedly coupled with the fixed valve.
Technical solution bring beneficial effect provided by the embodiment of the utility model includes at least:
Blowout prevention valve provided by the embodiment of the utility model can make valve by the cooperation of sliding pin, support spring and reset spring
Core is in the case where the pump plug of oil well pump is hit, using sliding of the sliding pin between elongated slot and short slot, make sphere and limiting section offset or with
Gap is formed between limiting section, to close, open the Vertical Channel of spool, and then realizes the Push And Release in oil pipe channel, Jin Erke
Guarantee sucker rod during removing, oil pipe channel is in close state, and in carrying out oil-gas mining operation process, oil pipe
Channel, which is in, closes opening state, can not only effectively prevent blowout, but also do not influence the exploitation of oil gas field.
In conclusion blowout prevention valve provided by the embodiment of the utility model, repeats circuit-breaker oil tube passage, does not need to well head
It is transformed, reduces operation intensity and operating cost, be conducive to promote.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of blowout prevention valve provided by the embodiment of the utility model；
Fig. 2 is the distribution schematic diagram of the elongated slot and short slot on spool provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of righting part provided by the embodiment of the utility model.
Wherein, each label declaration is as follows in attached drawing:
1- top connection；
2- shell；
201- limiting section；
3- positioning sleeve；
4- spool；
4a- axial passage；
4b- elongated slot；
The short slot of 4c-；
4d- sliding slot；
401- major diameter section；
402- path section；
5- rotary sleeve；
6- sliding pin；
7- reset spring；
8- sphere；
9- support spring；
10- lower contact；
1001- large-diameter portion；
1002- transition part；
1003- small diameter portion；
11- righting part；
1101- inner ring body；
1102- supporter；
1103- outer ring body；
12- spring base；
1201- ontology；
1202- retention bead.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of blowout prevention valve, as shown in Fig. 1, the blowout prevention valve include: for oil pumping
The top connection 1 of the pump barrel connection of pump；The shell 2 being connect with top connection 1；The positioning sleeve 3 being connect with the upper end inner wall of shell 2；It can
It is axially slidably disposed in shell 2, the spool 4 that the inner wall of upper end and positioning sleeve 3 offsets, is provided with axial passage on spool 4
4a, the short slot 4c for being additionally provided with elongated slot 4b, being connected to elongated slot 4b on outer wall (referring to attached drawing 2)；Seat in shell 2, and with positioning
Cover the rotary sleeve 5 that 3 bottom walls offset；It is connect with rotary sleeve 5, and can sliding pin 6, sliding pin 6 are being pumped in axial sliding in elongated slot 4b
Under the pump plug of pump is hit, it can be slided between elongated slot 4b and short slot 4c；The reset spring 7 being sleeved on spool 4, reset spring 7
In its natural state, upper and lower end offsets with the limiting section 201 in the upper end of spool 4, shell 2 respectively；It is arranged in shell 2
Sphere 8, support spring 9, sphere 8 support spring 9 in the raw when, while the bottom wall phase with limiting section 201, spool 4
It supports, and when sliding pin 6 is located at short slot 4c, there is gap between limiting section 201；The lower contact 10 connecting with shell 2, is used for
It is connect with the fixed valve of oil well pump.
It should be noted that the nature of reset spring 7, support spring 9 refers to reset spring 7, support spring 9
The state when active force being not affected by addition to the oil-air pressure in pit shaft.
The working principle with regard to blowout prevention valve provided by the embodiment of the utility model, which is given, below describes:
In application, first connecting the top connection of blowout prevention valve 1 with the pump barrel of oil well pump, lower contact 10 is consolidated with oil-well pump bottom
Determine valve connection, and is limited in sliding pin 6 in the elongated slot 4b of spool 4.During tripping in bottom is provided with the sucker rod of pump plug,
In the raw due to support spring 9, so that sphere 8 and the bottom wall of limiting section 201, spool 4 offset, to block spool 4
Axial passage 4a, and then close oil pipe channel.When pump plug enters in top connection 1, continues through sucker rod decentralization, pump plug is push
Spool 4 makes 4 compression reseting spring of spool, 7 slide downward；And then steel ball compression support spring 9 is driven to move downward, make sphere 8
Gap is formed between the limiting section 201 of shell 2, to open oil pipe channel；At this point, hitting pump plug, slide sliding pin 6 by elongated slot 4b
It moves to short slot 4c, sliding pin 6 is accommodated to short slot 4c, and then fixed spool 4, keep oil pipe channel in the open state, just
Using oil well pump, oil-gas mining operation is carried out.To the end of oil-gas mining operation, when above mentioning sucker rod, pump plug, sliding pin 6 are collided
It being slid into elongated slot 4b by short slot 4c, and above proposes pump plug using sucker rod, reset spring 7, support spring 9 are resetted, so that
Sphere 8 and the bottom wall of limiting section 201, spool 4 offset, to close oil pipe channel.
As it can be seen that blowout prevention valve provided by the embodiment of the utility model, is matched by sliding pin 6, support spring 9 with reset spring 7
It closes, spool 4 can be made in the case where the pump plug of oil well pump is hit, using sliding of the sliding pin 6 between elongated slot 4b and short slot 4c, make sphere 8
It offsets with limiting section 201 or forms gap between limiting section 201, to close, open the axial passage 4a, Jin Ershi of spool 4
The Push And Release in existing oil pipe channel, it is ensured that during removing, oil pipe channel is in close state sucker rod, and is carrying out oil
During gas mining operations, oil pipe channel, which is in, closes opening state, can not only effectively prevent blowout, but also do not influence opening for oil gas field
It adopts.
In conclusion blowout prevention valve provided by the embodiment of the utility model, repeats circuit-breaker oil tube passage, does not need to well head
It is transformed, reduces operation intensity and operating cost, be conducive to promote.
Based on structure it is simple under the premise of, in the utility model embodiment, as shown in Fig. 1, spool 4 include: by up to
Under sequentially connected major diameter section 401, path section 402；Major diameter section 401 and the inner wall of positioning sleeve 3 offset, and are arranged in major diameter section 401
There are axial passage 4a, elongated slot 4b and short slot 4c；Reset spring 7 is sleeved in path section 402.
It should be noted that the outer diameter of major diameter section 401 is greater than the outer diameter of path section 402.
Wherein, multiple axial passage 4a are set in major diameter section 401, and multiple axially extending bores are between the circumferential direction of major diameter section 401
Every setting, to guarantee the normal exploitation of oil gas field.
In addition, being additionally provided with multiple elongated slot 4b, multiple short slot 4c in major diameter section 401, and multiple elongated slot 4b, multiple short slot 4c
Circumferential direction along major diameter section 401 is arranged alternately (referring to attached drawing 2).By so set, convenient for sliding pin 6 corresponding elongated slot 4b with it is short
It is slided between slot 4c.It should be noted that sliding slot 4d is provided between each elongated slot 4b and corresponding short slot 4c, so that corresponding
Sliding pin 6 can be slided in the case where the pump plug of oil well pump is hit between elongated slot 4b and short slot 4c, i.e., be alternately contained in elongated slot 4b, short
In slot 4c.
It is understood that the top of positioning sleeve 3 is provided with limiting stand, make 401 upward sliding of major diameter section until with positioning
The top of set 3 offsets, and avoids the outside for sliding out to positioning sleeve 3.
About the connection type of major diameter section 401 and path section 402, it may be configured as welding or be integrally formed, be based on a bodily form
At having the characteristics that bonding strength is high, the utility model embodiment is preferentially used.
In order to avoid spool 4 shakes during sliding, in the utility model embodiment, as shown in Fig. 1, prevent
Spray valve further include: the righting part 11 being connect with limiting section 201, for being sleeved on spool 4.
Wherein, righting part 11 is arranged on the roof of limiting section 201.
It is understood that righting part 11 and shell 2, lower contact 10 penetrate through.
As an example, as shown in Fig. 3, in the utility model embodiment, righting part 11 includes: inner ring body 1101,
The outer ring body 1103 being sleeved on by supporter 1102 on inner ring body 1101；Outer ring body 1103 is connect with limiting section 201；Inner ring body
1101 for being sleeved on spool 4.
Wherein, the structure of inner ring body 1101 is adapted with the gabarit of the path section 402 of spool 4, i.e., inner ring body 1101 is interior
Diameter is equal or slightly larger than the outer diameter of path section 402.
It should be noted that there is gap between inner ring body 1101 and outer ring body 1103, so that righting part 11 and shell 2,
Lower contact 10 penetrates through.
In the utility model embodiment, as shown in Fig. 3, supporter 1102 includes: circumferentially spaced is arranged in inner ring body
Multiple support plates between 1101 and outer ring body 1103.By being as above arranged, the structure of righting part 11 is simplified, easy to produce,
Processing.
Wherein, the roof of outer ring body 1103 and limiting section 201 welds；One end of support plate and inner ring body 1101 weld, separately
One end and outer ring body 1103 weld.Production, processing by being as above arranged, convenient for righting part 11.
The shaking of support spring 9 in order to prevent, and guarantee the normal upper and lower sliding of sphere 8, the utility model embodiment
In, as shown in Fig. 1, spring base 12 is provided on the inner wall of lower contact 10, support spring 9 on spring base 12.
It is understood that spring base 12 and shell 2, lower contact 10 penetrate through.
As an example, in the utility model embodiment, as shown in Fig. 1, spring base 12 includes: to connect with lower contact 10
The ontology 1201 connect, the retention bead 1202 being connect with the lower end of ontology 1201；The upper end opening of ontology 1201, lower end are provided with
Multiple through-holes；, retention bead 1202 is for being set in support spring 9.
Wherein, ontology 1201 and lower contact 10 are welded；Ontology 1201 and retention bead 1202 are welded, convenient for spring base 12
Installation, processing.
In the utility model embodiment, in order to make sphere 8 and the lower end of limiting section 201 effectively offset, as described in Fig. 1,
The bottom diameter of limiting section 201 is from top to bottom gradually increased.
For the ease of shell 2, top connection 1, positioning sleeve 3 and the installation and removal of lower contact 10, the utility model is implemented
In example, top connection 1 is threadedly coupled with shell 2；Shell 2 is threadedly coupled with positioning sleeve 3；Shell 2 is also threadedly coupled with lower contact 10.
Wherein, it is provided with screw thread on the lower end inner wall of top connection 1, is provided on the upper end outer wall of shell 2 and top connection 1
The compatible screw thread of lower thread；It is provided with screw thread on the upper end inner wall of shell 2, is provided on the outer wall of positioning sleeve 3 and shell 2
Upper end inner wall on the compatible screw thread of screw thread；Screw thread, the lower end outer wall of shell 2 are provided on the upper end inner wall of lower contact 10
On be provided with screw thread compatible with the threaded upper ends of lower contact 10.
Lower contact 10 based on above structure, in order to can be threadedly coupled with shell 2 and spring base 12 connect, this reality
With in new embodiment, as shown in Fig. 1, lower contact 10 includes: large-diameter portion 1001, the transition part of smooth connection from top to bottom
1002, small diameter portion 1003；The outer diameter of large-diameter portion 1001 is identical as the outer diameter of transition part 1002, and internal diameter is greater than the interior of transition part 1002
Diameter；The internal diameter of transition part 1002 is identical as the internal diameter of small diameter portion 1003, and outer diameter is greater than the outer diameter of small diameter portion 1003；Under shell 2
End outer wall is connect with the inner thread of large-diameter portion 1001；Spring base 12 is connect with the roof of transition part 1002, and under shell 2
End inner wall offsets.
In the utility model embodiment, top connection 1 is threadedly coupled with pump barrel；Lower contact 10 is threadedly coupled with fixed valve.It is logical
It crosses so set, being conveniently replaceable blowout prevention valve.
Wherein, be provided with screw thread compatible with the screw thread of the lower end inner wall of pump barrel on the upper end outer wall of top connection 1, under connect
It is provided on first 10 lower end inner wall for screw thread compatible with the screw thread of valve seat outer wall of fixed valve.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
The foregoing is merely the illustrative embodiments of the utility model, the protection model that is not intended to limit the utility model
It encloses, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of utility model.
Claims (10)
1. a kind of blowout prevention valve, which is characterized in that the blowout prevention valve includes:
The top connection (1) being connect for the pump barrel with oil well pump；
The shell (2) being connect with the top connection (1)；
The positioning sleeve (3) being connect with the upper end inner wall of the shell (2)；
Axially slidably it is arranged in the shell (2), the spool (4) that the inner wall of upper end and the positioning sleeve (3) offsets, institute
It states and is provided on spool (4) axial passage (4a), the short slot that elongated slot (4b) is additionally provided on outer wall, is connected to the elongated slot (4b)
(4c)；
Seat is in the shell (2), and the rotary sleeve (5) to offset with the positioning sleeve (3) bottom wall；
It is connect with the rotary sleeve (5), and can be in interior sliding pin (6) in axial sliding of the elongated slot (4b), the sliding pin (6) is in institute
Under the pump plug shock for stating oil well pump, it can be slided between the elongated slot (4b) and the short slot (4c)；
The reset spring (7) being sleeved on the spool (4), the reset spring (7) in its natural state, distinguish by upper and lower end
It offsets with the limiting section (201) in the upper end of the spool (4), the shell (2)；
The sphere (8) that is arranged in the shell (2), support spring (9), the sphere (8) are in the support spring (9)
When nature, while offseting with the lower end of the limiting section (201), the spool (4), and be located in the sliding pin (6)
When short slot (4c), there is gap between the limiting section (201)；
The lower contact (10) being connect with the shell (2), for being connect with the fixed valve of the oil well pump.
2. blowout prevention valve according to claim 1, which is characterized in that the spool (4) includes: sequentially connected from top to bottom
Major diameter section (401), path section (402)；
The major diameter section (401) and the inner wall of the positioning sleeve (3) offset, and are provided with the axial direction on the major diameter section (401)
Channel (4a), the elongated slot (4b) and the short slot (4c)；
The reset spring (7) is sleeved on the path section (402).
3. blowout prevention valve according to claim 1, which is characterized in that the blowout prevention valve further include: with the limiting section (201)
The righting part (11) of connection, for being sleeved on the spool (4).
4. blowout prevention valve according to claim 3, which is characterized in that the righting part (11) includes: inner ring body (1101), is led to
Cross the outer ring body (1103) that supporter (1102) is sleeved on the inner ring body (1101)；
The outer ring body (1103) connect with the limiting section (201)；
The inner ring body (1101) is for being sleeved on the spool (4).
5. blowout prevention valve according to claim 4, which is characterized in that the supporter (1102) includes: circumferentially spaced sets
Set multiple support plates between the inner ring body (1101) and the outer ring body (1103).
6. blowout prevention valve according to claim 1, which is characterized in that be provided with spring base on the inner wall of the lower contact (10)
(12), support spring (9) seat is on the spring base (12).
7. blowout prevention valve according to claim 6, which is characterized in that the spring base (12) includes: and the lower contact
(10) ontology (1201) connected, the retention bead (1202) being connect with the lower end of the ontology (1201)；
The upper end opening of the ontology (1201), lower end is provided with multiple through-holes；
The retention bead (1202) is for being set in the support spring (9).
8. blowout prevention valve according to claim 1, which is characterized in that the bottom diameter of the limiting section (201) is from top to bottom
It is gradually increased.
9. blowout prevention valve according to claim 1, which is characterized in that the top connection (1) and the shell (2) screw thread connect
It connects；
The shell (2) is threadedly coupled with the positioning sleeve (3)；
The shell (2) is also threadedly coupled with the lower contact (10).
10. blowout prevention valve according to claim 1, which is characterized in that the top connection (1) is threadedly coupled with the pump barrel；
The lower contact (10) is threadedly coupled with the fixed valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057258.5U CN208473771U (en) | 2018-07-04 | 2018-07-04 | Blowout prevention valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057258.5U CN208473771U (en) | 2018-07-04 | 2018-07-04 | Blowout prevention valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473771U true CN208473771U (en) | 2019-02-05 |
Family
ID=65212961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821057258.5U Active CN208473771U (en) | 2018-07-04 | 2018-07-04 | Blowout prevention valve |
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| Country | Link |
|---|---|
| CN (1) | CN208473771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685632A (en) * | 2018-07-04 | 2020-01-14 | 中国石油天然气股份有限公司 | Blowout prevention valve |
-
2018
- 2018-07-04 CN CN201821057258.5U patent/CN208473771U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685632A (en) * | 2018-07-04 | 2020-01-14 | 中国石油天然气股份有限公司 | Blowout prevention valve |
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