CN114508315A - Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same - Google Patents
Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same Download PDFInfo
- Publication number
- CN114508315A CN114508315A CN202210241363.9A CN202210241363A CN114508315A CN 114508315 A CN114508315 A CN 114508315A CN 202210241363 A CN202210241363 A CN 202210241363A CN 114508315 A CN114508315 A CN 114508315A
- Authority
- CN
- China
- Prior art keywords
- valve
- liquid
- ball
- double
- ball valve
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Multiple-Way Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
本发明提供了一种双球阀芯及带有该双球阀芯的提升短接式连续正循环阀，涉及油田生产技术领域，主要目的是为了解决传统的循环阀操作不便、密封性受温度应较大的问题，提供一种方便施工且密封性不受季节限制的、可连续使用的正循环阀结构。该双球阀芯包括阀体和双球换向导液件，所述阀体为中空结构，其上设置有第一进液流道、第二进液流道和排液流道；所述双球换向导液件固定设置在所述阀体内，当液体经所述第一进液流道或所述第二进液流道流入所述阀体内时，所述双球换向导液件能在液流的冲击下封闭所述第二进液流道或所述第一进液流道，流入所述阀体内的液体均能经所述排液流道排出。
The invention provides a double-ball valve core and a lifting short-connection type continuous positive circulation valve with the double-ball valve core, which relates to the technical field of oilfield production, and the main purpose is to solve the problem that the traditional circulation valve is inconvenient to operate, and its tightness is affected by high temperature. It is a big problem to provide a positive circulation valve structure that is convenient for construction and not limited by seasons, and can be used continuously. The double-ball valve core includes a valve body and a double-ball reversing liquid guide. The valve body is a hollow structure and is provided with a first liquid inlet flow channel, a second liquid inlet flow channel and a liquid discharge flow channel; the double balls The reversing liquid guide member is fixedly arranged in the valve body. When the liquid flows into the valve body through the first liquid inlet flow channel or the second liquid inlet flow channel, the double-ball reversing liquid guide member can be used in the liquid. The second liquid inlet flow channel or the first liquid inlet flow channel is closed under the impact of the flow, and the liquid flowing into the valve body can be discharged through the liquid discharge flow channel.
Description
Technical Field
The invention relates to the technical field of oil field production, in particular to a double-ball valve core and a lifting short-circuit type continuous positive circulation valve with the same.
Background
In the continuous sand washing procedure of the workover operation of the oil field and the oil well, a continuous circulating valve is required to be installed on an oil pipe, and the currently commonly used continuous circulating valve is divided into a forward circulating valve or a reverse circulating valve according to the requirement of a sand washing mode. The positive circulation valve and the reverse circulation valve are independent bodies, and the whole valve body is arranged on a tubing coupling. Due to the influence of the length of the valve body, when the valve is used, an operating team needs to replace a commonly used hanging ring with the type SH75 or DH75 (even a hanging ring with a load smaller than that of the models) and can complete continuous circulating sand washing construction work by replacing the hanging ring with the load larger than that of SH75 or DH 75.
In the construction process, because the length of the whole valve body is increased and the lifting ring with large load is replaced, the operation personnel is inconvenient to replace the oil pipe, and the labor intensity of the operation personnel is increased. In addition, the circulating valves adopt a valve seat and valve core structure and adopt rubber sealing rings as auxiliary sealing, and when the air temperature is reduced, the rubber sealing rings are extremely easy to damage, so that the sealing performance of the circulating valves is reduced, and the normal operation of sand washing construction is seriously influenced. In addition, due to the existence of the rubber sealing ring, the daily maintenance and repair of the circulating valve are very troublesome.
In order to solve the above mentioned problems that the valve body sealing performance is easily affected by the air temperature and the maintenance is inconvenient, a novel valve core structure and a lifting short-circuit type continuous positive circulation valve with the same need to be developed.
Disclosure of Invention
The invention aims to provide a double-ball valve core and a lifting short-circuit type continuous positive circulation valve with the same, and aims to solve the technical problems that the sealing performance of a valve body is easily influenced by temperature and the use and maintenance are inconvenient in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a double-ball valve core, comprising: the valve body is of a hollow structure, and a first liquid inlet flow channel, a second liquid inlet flow channel and a liquid discharge flow channel are arranged on the valve body; two ball switching-over drain fittings, two ball switching-over drain fittings are fixed to be set up in the valve is internal, as liquid warp first feed liquor runner or the second feed liquor runner flows in when the valve is internal, two ball switching-over drain fittings can seal under the impact of liquid stream second feed liquor runner or first feed liquor runner flows in the internal liquid homoenergetic of valve is through the flowing back runner is discharged.
The double-ball valve core can guide liquid flows entering in different directions through the double-ball reversing liquid guide piece positioned in the valve body, so that the liquid flowing in different flow passages can be discharged along the set liquid discharge flow passage, the problems that a lifting ring and an oil pipe need to be manually disassembled and replaced when the traditional valve body is used are effectively solved, and the double-ball valve core is more convenient to use; in addition, compared with the traditional sealing rubber ring, the double-ball reversing liquid guide piece can realize reversing liquid guide and valve body sealing through liquid flow, and because a sealing ring is omitted, the double-ball valve core can not be limited by temperature when in use, can always keep a better sealing effect, and is more convenient to maintain and repair in daily life.
On the basis of the technical scheme, the invention can be further improved as follows.
As a further improvement of the present invention, the double-ball reversing liquid guiding member includes two symmetrically arranged ball valve assemblies, and the two ball valve assemblies are respectively disposed toward the first liquid inlet flow channel and the second liquid inlet flow channel; when one ball valve assembly is in a liquid guiding state under the impact of liquid flow, the other ball valve assembly is in a closed state.
This liquid piece is led in two ball commutations comprises the ball valve assembly of two symmetrical arrangement, and this structure can effectively reduce the processing cost of this liquid piece is led in two ball commutations, compares with traditional integral type switching-over structure by the two liquid pieces are led in two ball commutations that independent ball valve assembly constitutes simultaneously, and its maintenance is also more convenient.
As a further improvement of the invention, a gap exists between the two ball valve assemblies. The clearance can ensure that liquid flow can impact two ball valve assemblies simultaneously, so that the liquid guiding effect of one ball valve assembly and the sealing effect of the other ball valve assembly are realized.
As a further improvement of the present invention, the ball valve assembly includes a valve cover, a valve seat, a valve ball and an elastic member, the valve seat and the elastic member are respectively located at two ends of the valve cover, and the valve ball is located in the valve cover; the valve seat is provided with an inlet through which liquid flows into the valve cover, and the elastic piece is provided with an outlet through which the liquid in the valve cover flows out; when no external force is applied, the valve ball can be abutted with the valve seat under the extrusion action of the elastic piece, and the inlet is in a closed state.
When the liquid flow impacts the valve ball, the valve ball can move towards the position of the elastic piece and extrude the elastic piece under the action of the impact force of the liquid flow, and at the moment, the liquid flow can enter the valve cover through the inlet and flow to the position of the liquid drainage flow channel through the outlet on the elastic piece.
As a further improvement of the present invention, the elastic member includes a spring and a spring seat. The spring can produce elastic deformation, is provided with above-mentioned export on the spring holder.
As a further improvement of the present invention, the valve body includes a first joint, a connecting cylinder and a second joint which are fixedly connected, the double-ball reversing liquid guide member is located in the connecting cylinder, and the first liquid inlet flow channel and the second liquid inlet flow channel are respectively located on the first joint and the second joint.
The valve body composed of the three parts can limit and fix the double-ball reversing liquid guide piece on the premise of ensuring the bidirectional liquid inlet.
As a further improvement of the present invention, a first step is formed on the inner side wall of one end of the first joint inserted into the connecting cylinder, a second step is formed on the inner side wall of one end of the second joint inserted into the connecting cylinder, and the double-ball reversing liquid guide member is located in a limit space defined by the first step, the second step and the connecting cylinder. The first step, the second step and the connecting cylinder positioned outside the first step, the second step and the connecting cylinder are matched to form a space for accommodating the double-ball reversing liquid guide piece in a surrounding mode.
As a further improvement of the present invention, the liquid discharge flow path is located on the second joint.
As a further improvement of the invention, the extending direction of the liquid discharge flow channel is parallel to the axis of the second connector.
As a further improvement of the invention, the extending direction of the liquid discharge flow channel is perpendicular to the axis of the liquid inlet of the second liquid inlet flow channel. This structural design can effectively help shortening case length, avoids changing rings when carrying out the sand washing construction operation.
The invention also provides a lifting short-circuit type continuous positive circulation valve which comprises the double-ball valve core and a short-circuit body, wherein the short-circuit body is of a hollow structure and is fixedly connected with the valve body, and the liquid discharge flow channel is communicated with the hollow structure of the short-circuit body.
At the moment, the double-ball valve core connected with the short circuit body can realize the flow direction reversing of the sand washing liquid in the axial direction and the radial direction of the oil pipe by controlling the opening and the closing of the valve balls in different ball valve assemblies.
Compared with the prior art, the double-ball valve core and the lifting short-circuit type continuous positive circulation valve with the double-ball valve core provided by the preferred embodiment of the invention can replace a bottom surface continuous positive circulation valve commonly used in the current continuous circulation sand washing process, and can achieve the purposes of no temperature influence, high efficiency and safe control: compared with the traditional circulating valve, the area of the channel in the valve core is larger than that of the channel of the traditional valve seat and valve type single positive circulating valve, so that the sand washing liquid discharge capacity can be effectively improved, and the effect of efficient sand washing is achieved; meanwhile, as the valve core is not provided with the rubber ring, the valve core is not influenced by low temperature when in use, the sealing performance of the valve core can be effectively ensured, the daily maintenance of the valve core is more convenient, and the difficulty and the cost of the maintenance can be greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the dual ball valve cartridge of the present invention;
FIG. 2 is a schematic structural view of the ball valve assembly of FIG. 1;
FIG. 3 is a schematic diagram of the construction of the lift-short continuous positive circulation valve of the present invention.
In the figure: 1. a valve body; 11. a first joint; 111. a first liquid inlet flow channel; 112. a first step; 12. a connecting cylinder; 13. a second joint; 131. a second liquid inlet flow channel; 132. a second step; 103. a liquid discharge flow channel; 2. a double-ball reversing liquid guide part; 21. a ball valve assembly; 211. a valve cover; 212. a valve seat; 2121. an inlet; 213. a valve ball; 214. an elastic member; 2141. an outlet; 2142. a spring; 2143. a spring seat; 22. a gap; 3. short-circuit body
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The technical solution of the present invention will be specifically described below with reference to the accompanying drawings.
The invention provides a double-ball valve core, which is not provided with a rubber sealing ring structure, can not be influenced by temperature when in use, and can efficiently carry out sand washing and liquid guiding work.
Specifically, the double-ball valve core mainly comprises a valve body 1 and a double-ball reversing liquid guide member 2 positioned in the valve body 1, wherein the valve body 1 is of a hollow structure, and a first liquid inlet flow channel 111 and a second liquid inlet flow channel 131 for liquid inlet are arranged on the valve body 1; still be provided with on the valve body 1 and can be with the exhaust flowing back runner 103 of the liquid in the valve body 1, two balls switching-over drain spare 2 is located between three passageway, and the liquid that flows into in the valve body 1 need flow through two balls switching-over drain spare 2 earlier and then through flowing back runner 103 discharge: when liquid flows into the valve body 1 through the first liquid inlet flow channel 111 or the second liquid inlet flow channel 131, part of components in the double-ball reversing liquid guide member 2 can generate certain displacement towards the flow direction of the liquid under the impact of liquid flow so as to seal the second liquid inlet flow channel 131 or the first liquid inlet flow channel 111, and the liquid flowing into the valve body 1 can be discharged through the liquid discharge flow channel 103.
Compared with a traditional circulating valve, the valve body 1 can conduct liquid flow entering in two directions. When a single oil pipe needs to be replaced, the flow direction of the ground sand washing fluid is switched only through a corresponding reversing valve structure (the structure and the installation position of the reversing valve are the prior art and are not repeated herein), the sand washing fluid can be conveniently reversed, and the effect of continuous circulating sand washing is achieved. Compared with the traditional structure which needs manual disassembly and replacement of the hanging ring and the oil pipe, the structure is more convenient to use. Simultaneously, this two ball switching-over drain 2 compares with traditional sealing rubber circle, can realize that the switching-over drain is sealed with valve body 1 through the liquid stream, owing to cancelled the sealing washer, consequently this two ball case can not receive the temperature restriction when using, can keep better sealed effect throughout, and its daily maintenance and maintenance are also more convenient simultaneously.
It should be noted that, in general, the liquid inlets of the first liquid inlet channel 111 and the second liquid inlet channel 131 are both arranged in different directions, one of them is located on the axis of the valve body 1, and the other is arranged on the side wall of the valve body 1; alternatively, both may be positioned at both ends of the valve body 1 in the axial direction.
The structure of the double-ball reversing liquid guide 2 is explained in detail as follows:
as shown in fig. 1, the double-ball reversing liquid guide member 2 includes two symmetrically arranged ball valve assemblies 21, and the two ball valve assemblies 21 are respectively disposed toward the first liquid inlet flow channel 111 and the second liquid inlet flow channel 131; when one ball valve assembly 21 is in the fluid conducting state under the impact of fluid flow, the other ball valve assembly 21 is in the closed state.
This two ball switching-over drain 2 comprises two symmetrical arrangement's ball valve assembly 21, and this structure can effectively reduce the processing cost of this two ball switching-over drain 2, and two ball switching-over drains 2 that constitute by two independent ball valve assemblies 21 simultaneously compare with traditional integral type switching-over structure, and its maintenance is also more convenient.
As an alternative embodiment, a gap 22 exists between the two ball valve assemblies 21. This gap 22 ensures that the two ball valve assemblies 21 are impacted by the liquid flow at the same time, thereby achieving the effect of guiding the liquid from one ball valve assembly 21 and closing the other ball valve assembly 21.
As an alternative embodiment, as shown in fig. 2, the ball valve assembly 21 includes a valve cover 211, a valve seat 212, a valve ball 213 and an elastic member 214, the valve seat 212 and the elastic member 214 are respectively located at two ends of the valve cover 211, and the valve ball 213 is located in the valve cover 211; the valve seat 212 is provided with an inlet 2121 for liquid to flow into the valve cover 211, and the elastic element 214 is provided with an outlet 2141 for the liquid in the valve cover 211 to flow out; when no external force is applied, the ball 213 can abut against the valve seat 212 by the pressing force of the elastic member 214, and the inlet 2121 is closed.
The elastic member 214 can exert its elastic force on the valve ball 213 when no external force is applied and make the valve ball 213 press against the valve seat 212 to close the inlet 2121 on the valve seat 212, when the liquid flow impacts the valve ball 213, the valve ball 213 can move towards the position of the elastic member 214 and press the elastic member 214 under the impact force of the liquid flow, and the liquid flow can enter the valve cover 211 through the inlet 2121 and flow to the position of the drain flow channel 103 through the outlet 2141 on the elastic member 214.
As an alternative embodiment, the elastic member 214 includes a spring 2142 and a spring seat 2143. The spring 2142 is elastically deformable, and the spring seat 2143 is provided with the outlet 2141.
As an alternative embodiment, the valve body 1 includes a first joint 11, a connecting cylinder 12 and a second joint 13 which are fixedly connected, the double-ball reversing liquid guide member 2 is located in the connecting cylinder 12, and the first liquid inlet flow passage 111 and the second liquid inlet flow passage 131 are respectively located on the first joint 11 and the second joint 13.
The valve body 1 consisting of three parts can limit and fix the double-ball reversing liquid guide part 2 on the premise of ensuring bidirectional liquid inlet.
It should be noted that the first inlet channel 111 is located in the axial direction of the first joint 11, and the second inlet channel 131 is located on the side wall of the second joint 13.
As an alternative embodiment, a first step 112 is formed on the inner side wall of one end of the first connector 11 inserted into the connecting cylinder 12, a second step 132 is formed on the inner side wall of one end of the second connector 13 inserted into the connecting cylinder 12, and the double-ball reversing liquid guide member 2 is positioned in a limit space defined by the first step 112, the second step 132 and the connecting cylinder 12. The first step 112, the second step 132 and the connecting cylinder 12 located outside the first step and the second step cooperate to form a space for accommodating the double-ball reversing liquid guide 2.
In order to facilitate the discharge of the fluid (i.e., oil, etc.) flowing into the valve body 1, a liquid discharge passage 103 may be provided on the second connector 13, as shown in fig. 1.
When the liquid discharge passage 103 is located on the second connector 13 as shown in fig. 1, and the extending direction of the liquid discharge passage 103 is parallel to the axis of the second connector 13, that is, the liquid discharge passage 103 is arranged on the second connector 13 in a direction parallel to the axis of the second connector 13, the liquid in the valve body 1 and discharged through the two different outlets 2141 can be discharged from the valve body 1 along the liquid discharge passage 103.
Further, at this time, the second liquid inlet flow channel 131 is communicated with the external oil pipe through the side wall of the second joint 13, that is, the liquid inlet portion of the second liquid inlet flow channel 131 is located on the side wall of the second joint 13, and the extending direction of the liquid outlet flow channel 103 is perpendicular to the axis of the liquid inlet portion of the second liquid inlet flow channel 131.
This structural design can effectively help shortening case length, avoids changing rings when carrying out the sand washing construction operation.
As shown in fig. 3, the invention further provides a lifting short-circuit type continuous positive circulation valve, which comprises any one of the above-mentioned double-ball valve cores, and further comprises a short-circuit body 3, wherein the short-circuit body 3 is of a hollow structure and is fixedly connected with the valve body 1, and the liquid discharge flow passage 103 is communicated with the hollow structure of the short-circuit body 3.
Specifically, the short circuit body 3 can be fixedly connected with the valve body 1 through the second joint 13, and the connection part of the two is shown in fig. 3.
At this time, the double-ball valve core connected with the short circuit body 3 can realize the reversing of the flow direction of the sand washing liquid in the axial direction and the radial direction of the oil pipe by controlling the opening and the closing of the valve ball 213 in different ball valve assemblies 21.
The using method of the lifting short-circuit type continuous positive circulation valve is as follows:
in the inactivated state, the valve balls 213 in the two ball valve assemblies 21 close the corresponding liquid inlet flow passages under the elastic force of the elastic member 214. When the continuous circulation sand washing is performed, when the sand washing fluid flows into the valve body 1 through the first inlet channel 111 in the first joint 11, the valve ball 213 moves toward the right side in the axial direction to open the inlet 2121 on the valve seat 212 by the impact of the sand washing fluid; at the same time, the ball 213 of the other ball valve assembly 21 is not actuated in the axial direction, and the inlet 2121 is closed, so that the fluid flows into the valve body 1 through the first inlet flow passage 111 and the corresponding ball valve assembly 21, and then flows into the short-circuit body 3 through the drainage flow passage 103 on the second joint 13, and the short-circuit body 3 is put into the well to flush the sand.
When a single oil pipe needs to be replaced, the flow direction of the fluid is switched to the pipeline communicated with the second liquid inlet channel of the second joint 13 through the corresponding reversing valve structure due to the pipeline communicated with the first liquid inlet channel of the first joint 11. At the moment, the actions of the two ball valve assemblies 21 are opposite, and sand washing fluid flows into the valve body 1 through the second liquid inlet channel and the inlet 2121, then flows into the short-circuit body 3 through the liquid drainage flow channel 103 on the second connector 13, and enters the short-circuit body 3 into the well to realize sand washing.
The invention can realize the reversing of the sand washing liquid along the axial flow direction of the oil pipe and the radial flow direction of the oil pipe, thereby achieving the effects of continuous circulating sand washing and safe control.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. Double-ball valve core, its characterized in that includes:
the valve body (1), the said valve body (1) is the hollow structure, there are first liquid inlet flow path (111), second liquid inlet flow path (131) and liquid drainage flow path (103) on it;
two ball commutations are led liquid spare (2), two ball commutations are led liquid spare (2) and are fixed to be set up in valve body (1), when liquid warp first feed liquor runner (111) or second feed liquor runner (131) flow in when in valve body (1), two ball commutations are led liquid spare (2) and can be sealed under the impact of liquid stream second feed liquor runner (131) or first feed liquor runner (111), flow in liquid homoenergetic in valve body (1) can warp drainage runner (103) are discharged.
2. The double ball valve cartridge as claimed in claim 1, wherein the double ball reversing liquid guide (2) comprises two symmetrically arranged ball valve assemblies (21), the two ball valve assemblies (21) being respectively disposed toward the first liquid inlet flow passage (111) and the second liquid inlet flow passage (131); when one ball valve assembly (21) is in a liquid guiding state under the impact of liquid flow, the other ball valve assembly (21) is in a closed state.
3. The dual ball valve cartridge of claim 2, wherein a gap (22) exists between two of said ball valve assemblies (21).
4. The dual ball valve cartridge as claimed in claim 2, wherein the ball valve assembly (21) comprises a valve cover (211), a valve seat (212), a valve ball (213) and an elastic member (214), the valve seat (212) and the elastic member (214) are respectively located at both ends of the valve cover (211) and the valve ball (213) is located in the valve cover (211); an inlet (2121) for liquid to flow into the valve cover (211) is arranged on the valve seat (212), and an outlet (2141) for the liquid positioned in the valve cover (211) to flow out is arranged on the elastic piece (214);
when no external force is applied, the valve ball (213) can be abutted against the valve seat (212) under the pressing action of the elastic piece (214), and the inlet (2121) is in a closed state.
5. The dual ball spool of claim 4 wherein the resilient member (214) includes a spring (2142) and a spring seat (2143), the outlet (2141) being located on the spring seat (2143).
6. The dual ball valve cartridge as claimed in claim 1, wherein the valve body (1) comprises a first joint (11), a connecting cylinder (12) and a second joint (13) which are fixedly connected, the dual ball reversing liquid guide member (2) is positioned in the connecting cylinder (12), and the first liquid inlet flow passage (111) and the second liquid inlet flow passage (131) are respectively formed on the first joint (11) and the second joint (13).
7. The dual ball valve core according to claim 6, wherein a first step (112) is formed on the inner side wall of one end of the first joint (11) inserted into the connecting cylinder (12), a second step (132) is formed on the inner side wall of one end of the second joint (13) inserted into the connecting cylinder (12), and the dual ball reversing liquid guide member (2) is positioned in a limit space formed by the first step (112), the second step (132) and the connecting cylinder (12) in a surrounding mode.
8. The dual ball valve cartridge of claim 6, wherein the drain flow passage (103) is located on the second connector (13).
9. The double ball valve cartridge according to claim 8, wherein the drainage flow passage (103) extends in a direction parallel to the axis of the second joint (13).
10. The lifting short-circuit type continuous positive circulation valve is characterized by comprising the double-ball valve core as defined in any one of claims 1 to 9 and further comprising a short-circuit body (3), wherein the short-circuit body (3) is of a hollow structure and is fixedly connected with the valve body (1), and the liquid discharge flow passage (103) is communicated with the hollow structure of the short-circuit body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241363.9A CN114508315A (en) | 2022-03-11 | 2022-03-11 | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210241363.9A CN114508315A (en) | 2022-03-11 | 2022-03-11 | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114508315A true CN114508315A (en) | 2022-05-17 |
Family
ID=81554034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210241363.9A Pending CN114508315A (en) | 2022-03-11 | 2022-03-11 | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114508315A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687375Y (en) * | 2004-04-08 | 2005-03-23 | 刘兵 | Dropping-proof fixed valve assembly |
| CN202645953U (en) * | 2012-05-14 | 2013-01-02 | 中国石油化工股份有限公司 | Immersion rod type heavy oil pump |
| CN203476258U (en) * | 2013-09-24 | 2014-03-12 | 北京恩瑞达科技有限公司 | Negative-pressure mechanical sand removal device for horizontal well |
| CN205955972U (en) * | 2016-07-25 | 2017-02-15 | 中国石油化工股份有限公司 | Stifled fixed valve of anti -sticking for oil -well pump |
| CN208024316U (en) * | 2018-03-27 | 2018-10-30 | 中国石油化工股份有限公司 | A kind of four-way conversion check valve |
| CN212508219U (en) * | 2020-06-15 | 2021-02-09 | 山东寿光市坤隆石油机械股份有限公司 | Hollow rotor screw pump well-flushing valve |
| CN216974776U (en) * | 2022-03-11 | 2022-07-15 | 辽宁华业能源技术服务有限公司 | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same |
-
2022
- 2022-03-11 CN CN202210241363.9A patent/CN114508315A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687375Y (en) * | 2004-04-08 | 2005-03-23 | 刘兵 | Dropping-proof fixed valve assembly |
| CN202645953U (en) * | 2012-05-14 | 2013-01-02 | 中国石油化工股份有限公司 | Immersion rod type heavy oil pump |
| CN203476258U (en) * | 2013-09-24 | 2014-03-12 | 北京恩瑞达科技有限公司 | Negative-pressure mechanical sand removal device for horizontal well |
| CN205955972U (en) * | 2016-07-25 | 2017-02-15 | 中国石油化工股份有限公司 | Stifled fixed valve of anti -sticking for oil -well pump |
| CN208024316U (en) * | 2018-03-27 | 2018-10-30 | 中国石油化工股份有限公司 | A kind of four-way conversion check valve |
| CN212508219U (en) * | 2020-06-15 | 2021-02-09 | 山东寿光市坤隆石油机械股份有限公司 | Hollow rotor screw pump well-flushing valve |
| CN216974776U (en) * | 2022-03-11 | 2022-07-15 | 辽宁华业能源技术服务有限公司 | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216974776U (en) | Double-ball valve core and lifting short-circuit type continuous positive circulation valve with same | |
| CN215110651U (en) | a hydraulic control valve | |
| CN101586552B (en) | High pressure reciprocating pump combination valve | |
| CN213245359U (en) | Neck extension combination valve for pipeline | |
| CN102537434A (en) | Self-balancing check throttle stop valve | |
| CN220540334U (en) | Fluid diversion opposite-flushing valve cage and water supply recycling regulating valve | |
| CN104500812B (en) | Low-power consumption electrically operated valve | |
| CN112013124A (en) | Gate valve with exhaust function | |
| CN216925295U (en) | Rubber ball cleaning device for condenser | |
| CN207470895U (en) | A kind of integrating water route plate entering water electromagnetic valve | |
| CN115234688B (en) | Low resistance backflow preventer | |
| CN212718170U (en) | Check valve with pipeline switching function | |
| CN213929474U (en) | A water conservancy pipeline for water conservancy projects | |
| CN216520210U (en) | Water heater water supply connector and water heater | |
| CN116753331A (en) | Multi-way valve reversing link, multi-way valve and hydraulic system | |
| CN215172484U (en) | Ball valve convenient to maintenance | |
| CN210814167U (en) | A filter with one-way valve function | |
| CN220453040U (en) | Portable connector for penetrating through box | |
| CN115110608A (en) | Device for realizing bidirectional pumping function on pump gate through one-way pump | |
| CN221034053U (en) | Pneumatic ball valve | |
| CN214613958U (en) | Water taking system for hydropower station technical water supply | |
| CN224201130U (en) | Double-seal anti-erosion shut-off valve | |
| CN207228264U (en) | A kind of one-in-and-two-out solenoid valve | |
| CN219954325U (en) | Valve rod type shuttle valve | |
| CN222026335U (en) | An integrated three-way valve structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |