CN212177395U - Oil-well pump oil inlet valve capable of transmitting pressure and draining oil - Google Patents
Oil-well pump oil inlet valve capable of transmitting pressure and draining oil Download PDFInfo
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- CN212177395U CN212177395U CN202020790213.XU CN202020790213U CN212177395U CN 212177395 U CN212177395 U CN 212177395U CN 202020790213 U CN202020790213 U CN 202020790213U CN 212177395 U CN212177395 U CN 212177395U
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Abstract
A pressure-transferrable oil-drainage oil-well pump oil-feeding valve is characterized by that a valve cavity is set in the valve cover, the upper end surface of the valve cover is communicated with the valve cavity, the valve ball is placed in the valve cavity, the valve seat is mounted in the valve cover, the upper portion of the joint is connected with lower portion of the valve cover, so that the upper end surface of the valve seat can be tightly contacted with internal shoulder of the valve cover, the lower portion of the joint is equipped with communicating groove, the bottom portion of the joint is made into blind hole structure, the lower portion of the top column is mounted on the upper shoulder of the joint, the top column upwards passes through the valve seat and jacks up the valve ball, the lower portion of the top column is equipped with flow-passing grooves, the number of said flow-passing grooves is 2-6, the lower portion of the oil-drainage joint is connected with upper portion of the valve cover, the pressure cover is mounted in the oil-drainage joint, the lower portion of the pressure cover is passed through the upper central hole of the valve cover and contacted with the valve ball jacked, the pin is installed on the oil drainage connector, the pin passes through the through groove and is inserted into the counter bore, and the upper portion of the oil drainage connector is provided with threads.
Description
Technical Field
The utility model belongs to an equipment that oil field oil pumping well was used is a can pass pressure can let out oil-well pump inlet valve.
Background
The oil inlet valve of the common oil well pump can not inject liquid into the well from the oil inlet pipe of the pump after being put into the well, and can not be used for the oil well which needs to inject liquid into the well. Chinese patent application 02254108.x can throw formula oil-well pump inlet valve and can inject liquid into the well, but has three shortcoming: firstly, the device is only suitable for a larger oil well pump, and if the device is arranged on a small pump, the valve ball is small, the flow passage is small, and the reliability is poor; secondly, the pump has multiple specifications, one pump diameter is matched with one specification, and the matching is troublesome; and thirdly, oil cannot be drained, and an additional matched oil drainer is needed. For example, chinese patent 200810157780.5 discloses an oil inlet valve of an oil pump capable of injecting and discharging oil, but it designs the technical characteristic of interference connection between the inner sealing body 6 and the outer sealing body 7, and this connection is completed when the pump is hit in the well, so that it has poor reliability and cannot meet the requirement of field use. As in the 2013202893793 patent, the structure of the valve cover needs to be changed, and the valve ball locking ring 12 is used to block the oil inlet valve ball 8 from falling down; when oil is pumped, the valve ball locking ring 12 blocks the oil inlet valve ball 8 from being washed away, but the oil inlet valve ball 8 impacts the valve ball locking ring 12 in a stroke of communication, thousands of impacts occur every day, the service life of the valve ball locking ring 12 is limited, the oil pump fails in a required working period, and the service life of the oil pump can be shortened.
Disclosure of Invention
The utility model aims at providing a but pass pressure draining oil-well pump inlet valve can squeeze into high-pressure liquid to the pump down, makes under the pump hydraulic pressure packer seal, can let out oil during the operation.
The purpose of the utility model is realized like this: the valve comprises a pin, a valve ball, a valve seat, a valve cover and a joint, wherein the valve cavity is arranged in the valve cover, an oil outlet is communicated between the upper end face of the valve cover and the valve cavity, the valve ball is placed in the valve cavity, the valve ball is limited by the upper top face of the valve cavity and cannot be separated from the valve cavity, the valve seat is arranged in the valve cover, the valve seat is positioned below a shoulder face below the valve cavity, the upper thread of the joint is connected with the lower thread of the valve cover, so that the upper end face of the valve seat is tightly contacted with an inner shoulder of the valve cover, the valve ball is matched and sealed with the valve seat, well fluid can flow upwards from the lower direction of the valve seat when the valve ball leaves the valve seat, the well fluid cannot flow downwards from the upper part of the valve seat when the valve ball falls on the valve seat, the lower part of the joint is provided with a communicating groove, the bottom of the joint is of a blind hole structure, so that an object falling from the upper part cannot fall into a well, the lower part of the support pillar is provided with flow passing grooves, so that liquid flow can flow through the valve seat, the flow passing grooves are 2-6 and are distributed along the circumference of the axis of the support pillar, the lower part of the oil drainage connector is connected with the upper part of the valve cover, the joint keeps sealed, the pressure cover is arranged in the oil drainage connector, the lower part of the pressure cover penetrates through the upper center hole of the valve cover to be contacted with a valve ball jacked by the support pillar, the upper part of the pressure cover is internally provided with a counter bore, the upper part of the pressure cover is externally provided with a through groove, the counter bore is communicated with the through groove, the diameter of the counter bore is smaller than the diameter of the lower part of an oil well pump piston matched with the counter bore, a pin is arranged on the oil drainage connector and penetrates through the through groove to be inserted into the counter bore, and the.
And a limiting device is arranged in the upper part of the oil drainage connector and limits the rising height of the pressure cover, so that the bottom of the counter bore of the pressure cover cannot collide with the pin.
The stop device in the upper part of the oil drainage joint consists of a blocking joint and the upper part of the oil drainage joint, the blocking joint is connected in the upper part of the oil drainage joint, the inner diameter of the blocking joint is smaller than the outer diameter of the upper part of the pressure cover, and the inner diameter of the blocking joint is larger than the diameter of the lower part of the oil well pump piston matched with the blocking joint, so that the lower part of the oil well pump piston matched with the blocking joint can reach the upper part of the pressure cover through the blocking joint.
The outer diameter of the upper shoulder of the pressure cover is larger than the inner diameter of the oil drainage joint, so that the pressure cover can be hung in the oil drainage joint, and when the pressure cover is hung in the oil drainage joint, the upper end of the through groove cannot reach the pin.
The utility model has the advantages that: the oil well pump is unblocked from top to bottom before going into the plunger, can beat to press in the well and make the hydraulic packer seat of its lower part seal or pour into liquid into to the well, drop into the sucker rod and break hollow pin and make its pump barrel inside and outside UNICOM when operation next time, the intraductal liquid stream that oils on the pump can let into in the cover pipe, the intraductal well liquid that oils on the pump can not flow to the operation scene when the oil pipe is gone up on the pump to the operation, can eliminate environmental pollution, also can make things convenient for the operation construction.
Drawings
Fig. 1 is an assembly view of an embodiment of the present invention.
Figure 2 is a shape view of the piece 4 of figure 1.
Figure 3 is a lower end-view projection of item 7 of figure 1.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
The implementation of the utility model comprises an oil drainage connector 2, a pin 3, a pressure cover 4, a valve ball 5, a valve seat 6, a support pillar 7, a valve cover 8 and a connector 9, wherein a valve cavity 8-2 is arranged in the valve cover 8, an oil outlet 8-1 is arranged between the upper end surface of the valve cover 8 and the valve cavity 8-2, the valve ball 5 is arranged in the valve cavity 8-2, the valve ball 5 is limited by the upper top surface of the valve cavity 8-2 and can not be separated from the valve cavity 8-2, the valve seat 6 is arranged in the valve cover 8, the valve seat 6 is arranged below the shoulder surface below the valve cavity 8-2, the upper thread of the connector 9 is connected with the lower thread of the valve cover 8, the upper end surface of the valve seat 6 is in close contact with the inner shoulder of the valve cover 8, the valve ball 5 is sealed with the valve seat 6 in a matching way, when the valve ball 5 leaves the valve seat 6, well fluid can flow upwards from the lower direction of the valve seat 6, the valve ball 5 can not flow downwards from the upper side of the, the lower part of the joint 9 is provided with a communicating groove 9-1, the bottom of the joint 9 is of a blind hole structure, so that objects falling from the upper part do not fall into the well, the lower part of the support pillar 7 is arranged on the shoulder of the upper part of the joint 9, the support pillar 7 upwards penetrates through the valve seat 6 to jack up the valve ball 5, the lower part of the support pillar 7 is provided with an overflowing groove 7-1 to enable liquid flow to flow through the valve seat 6, the overflowing grooves 7-1 are 2-6 and are distributed along the circumference of the axis of the support pillar 7, the lower part of the oil drainage joint 2 is connected with the upper part of the valve cover 8, the connection part keeps sealed, the pressure cover 4 is arranged in the oil drainage joint 2, the lower part of the pressure cover 4 penetrates through the central hole of the upper part of the valve cover 8 to be contacted with the valve ball 5 jacked up by the support pillar 7, the upper part of the pressure cover 4 is internally provided with a counter bore 4-2, the upper part of, the diameter of the counter bore 4-2 is smaller than the diameter of the lower part of the oil pump piston matched with the counter bore, the pin 3 is arranged on the oil drainage connector 2, the pin 3 penetrates through the through groove 4-1 and is inserted into the counter bore 4-2, and the upper part of the oil drainage connector 2 is provided with a thread connected with the lower part of the oil pump matched with the oil drainage connector.
A limiting device is arranged in the upper part of the oil drainage connector 2 and limits the rising height of the pressure cover 4, so that the bottom of the counter bore 4-2 of the pressure cover 4 cannot collide with the pin 3.
The limiting device in the upper part of the oil drainage connector 2 is composed of a blocking connector 1 and the upper part of the oil drainage connector 2, the blocking connector 1 is connected in the upper part of the oil drainage connector 2, the inner diameter of the blocking connector 1 is smaller than the outer diameter of the upper part of the pressure cover 4, the inner diameter of the blocking connector 1 is larger than the diameter of the lower part of the oil well pump piston matched with the blocking connector 1, and the lower part of the oil well pump piston matched with the blocking connector 1 can reach the upper part of the pressure cover 4 through the blocking connector 1.
The outer diameter of the upper shoulder of the pressure cover 4 is larger than the inner diameter of the oil drainage connector 2, so that the pressure cover 4 can be hung in the oil drainage connector 2, and when the pressure cover 4 is hung in the oil drainage connector 2, the upper end of the through groove 4-1 cannot reach the pin 3.
When in use, the utility model discloses replace current oil-well pump inlet valve, install the lower part at the oil-well pump barrel. Tubing threads on the sub 9 connect the tailpipe and the downhole tool below the tailpipe. After the valve seat 6 is lowered to the designed depth, the liquid flow is driven inwards and can be injected into the well through the valve seat 6. And after injection, a sucker rod with an oil well pump piston is put down, the diameter of the lower part of the oil well pump piston is larger than that of the counter bore 4-2, the weight of the sucker rod is pressed on the top column 7, so that a connecting entity between the overflowing grooves 7-1 is cut off, the top column 7 falls into a blind hole at the bottom of the joint 9, and the top column 7 cannot fall into a well. After the top pillar 7 is sheared, the pressure cover 4 is hung on the oil drainage connector 2, the stroke of pressing the pressure cover 4 to be pressed down cannot influence the work of the valve ball 5, and the weight of the sucker rod cannot be transmitted to the pin 3 through the pressure cover 4 when the pressure cover 4 is pressed to a lower initial point. Because the diameter of the lower part of the piston of the oil well pump is larger than that of the counter bore, the pin 3 cannot be touched by the lower part of the piston, and the valve ball 5 can normally work after the top column 7 falls into the blind hole at the bottom of the joint 9. When the oil pump works, the liquid flow impacts the pressure cover 4 to move upwards, the pressure cover 4 is limited by the stop joint 1, the pressure cover 4 cannot impact the pin 3, and the pin 3 cannot be damaged.
When oil drainage is needed when the next operation of lifting the oil pumping rod and the oil pipe below the oil pumping rod is carried out, the oil drainage can be realized by dropping the impact rod and breaking the pin 3.
When the number of the overflowing grooves 7-1 is small, in order to ensure that the entity between the overflowing grooves 7-1 can be cut off, the overflowing grooves 7-1 are not circular, so that the entity area between the overflowing grooves 7-1 is reduced, and the weight of the sucker rod can press off the entity between the overflowing grooves 7-1.
The pin 3 is the current draining pin, just can make inside and outside UNICOM after breaking.
Claims (4)
1. A pressure-transferrable and oil-drainable oil-well pump oil inlet valve comprises a pin (3), a valve ball (5), a valve seat (6), a valve cover (8) and a connector (9), wherein a valve cavity (8-2) is arranged in the valve cover (8), an oil outlet (8-1) is formed between the upper end face of the valve cover (8) and the valve cavity (8-2), the valve ball (5) is placed in the valve cavity (8-2), the valve ball (5) is limited by the upper top face of the valve cavity (8-2) and cannot be separated from the valve cavity (8-2), the valve seat (6) is installed in the valve cover (8), the valve seat (6) is positioned below the valve cavity face below the shoulder (8-2), the upper thread of the connector (9) is in threaded connection with the lower portion of the valve cover (8), so that the upper end face of the valve seat (6) is in close contact with the inner shoulder of the valve cover (8), valve ball (5) are sealed with disk seat (6) cooperation, and well liquid can flow from the lower side of disk seat (6) when valve ball (5) leave disk seat (6) upwards, and well liquid can not flow downwards from the top of disk seat (6) when valve ball (5) fall on disk seat (6), and the lower part that connects (9) has linkage groove (9-1), and the bottom that connects (9) is the blind hole structure, makes the object that upper portion falls not fall into in the well, characterized by: the lower part of a support pillar (7) is arranged on an upper shoulder of a joint (9), the support pillar (7) upwards penetrates through a valve seat (6) to jack up a valve ball (5), the lower part of the support pillar (7) is provided with a flow through groove (7-1) to enable liquid flow to flow through the valve seat (6), the flow through grooves (7-1) are 2-6 and are circumferentially distributed along the axis of the support pillar (7), the lower part of an oil drainage joint (2) is connected with the upper part of a valve cover (8), the connection part keeps sealed, a pressure cover (4) is arranged in the oil drainage joint (2), the lower part of the pressure cover (4) penetrates through an upper central hole of the valve cover (8) to be contacted with the valve ball (5) jacked up by the support pillar (7), a counter bore (4-2) is arranged in the upper part of the pressure cover (4), a through groove (4-1) is arranged outside the upper part of the pressure cover (4), and the counter bore (4-2) is communicated with the through groove (4, the diameter of the counter bore (4-2) is smaller than the diameter of the lower part of the oil pump piston matched with the counter bore, the pin (3) is installed on the oil drainage connector (2), the pin (3) penetrates through the through groove (4-1) and is inserted into the counter bore (4-2), and the upper part of the oil drainage connector (2) is provided with threads connected with the lower part of the oil pump matched with the oil drainage connector.
2. The oil inlet valve of the oil well pump capable of transmitting pressure and draining oil as claimed in claim 1, which is characterized in that: a limiting device is arranged in the upper part of the oil drainage connector (2) and limits the rising height of the pressure cover (4), so that the bottom of the counter bore (4-2) of the pressure cover (4) cannot collide with the pin (3).
3. The oil inlet valve of the oil well pump capable of transmitting pressure and draining oil as claimed in claim 2, wherein: stop device in the upper portion of draining joint (2) constitute by keeping off the upper portion that connects (1), draining joint (2), keep off and connect (1) and connect in the upper portion of draining joint (2), keep off the internal diameter that connects (1) and be less than the upper portion external diameter of pressing cover (4), keep off the internal diameter that connects (1) and be greater than the lower part diameter rather than supporting oil-well pump piston, make rather than the lower part of supporting oil-well pump piston can reach the upper portion of pressing cover (4) through keeping off joint (1).
4. The oil inlet valve of the oil well pump capable of transmitting pressure and draining oil as claimed in claim 1 or 2, which is characterized in that: the outer diameter of the upper shoulder of the pressure cover (4) is larger than the inner diameter of the oil drainage joint (2), so that the pressure cover (4) can be hung in the oil drainage joint (2), and when the pressure cover (4) is hung in the oil drainage joint (2), the upper end of the through groove (4-1) cannot reach the pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020790213.XU CN212177395U (en) | 2020-05-13 | 2020-05-13 | Oil-well pump oil inlet valve capable of transmitting pressure and draining oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020790213.XU CN212177395U (en) | 2020-05-13 | 2020-05-13 | Oil-well pump oil inlet valve capable of transmitting pressure and draining oil |
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| Publication Number | Publication Date |
|---|---|
| CN212177395U true CN212177395U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020790213.XU Active CN212177395U (en) | 2020-05-13 | 2020-05-13 | Oil-well pump oil inlet valve capable of transmitting pressure and draining oil |
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| CN (1) | CN212177395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761596A (en) * | 2021-01-13 | 2021-05-07 | 孙伟峰 | Pressure guide structure of pump |
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2020
- 2020-05-13 CN CN202020790213.XU patent/CN212177395U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761596A (en) * | 2021-01-13 | 2021-05-07 | 孙伟峰 | Pressure guide structure of pump |
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