CN2568807Y - Multiple switch valve - Google Patents
Multiple switch valve Download PDFInfo
- Publication number
- CN2568807Y CN2568807Y CN 02254192 CN02254192U CN2568807Y CN 2568807 Y CN2568807 Y CN 2568807Y CN 02254192 CN02254192 CN 02254192 CN 02254192 U CN02254192 U CN 02254192U CN 2568807 Y CN2568807 Y CN 2568807Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- cylinder sleeve
- piston
- ring
- switch 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a multiple-time switch valve, which comprises an upper joint 1, a central tube 2, a press sleeve 3, a lock ring 4, a piston 5, an O-shaped ring 6, a cylinder sleeve 7, a lower joint 8, a grid ring 9, a baffle ring 10 and a clogging device 11, wherein, through holes are respectively arranged between the piston and the central tube, between the cylinder sleeve and the central tube and between the lower joint and the central tube, and the sum of the annular sectional area of the inner parts of the piston and the lower joint is equal to the annular sectional area of the inner part of the cylinder sleeve. The clogging device is pulled and run on ground and is pressurized so that the multiple-time switch valve can be opened or closed, and the grid ring between the cylinder sleeve and the central tube ensures that a circulating valve can be opened multiple times.
Description
Technical field
The utility model relates to a kind of multiple switching valve.
Background technology
In the prior art, repeatedly (the just or instead) circulating valve that is widely used in the piston rod shell type hydraulic selector in the petroleum industry underground work at present generally comprises joint, central tube, gland, cylinder sleeve and " O " shape sealing ring parts, during work owing to be subjected to the influence of oil jacket pressure reduction artificial gauge tap, cause the circulating valve can not normal switch, cause ground can't judge the down-hole situation, cause damage to construction.
Summary of the invention
The purpose of this utility model is at the existing circulating valve ineffective problem of open and close repeatedly, a kind of novel switched valve of development and design, and this switch valve switching process can repeatedly repeat, and sealing is more reliable.
In order to achieve the above object, the utility model multiple switching valve comprises top connection 1, central tube 2, gland 3, lock ring 4, piston 5, round section joint ring 6, cylinder sleeve 7, lower contact 8, " Ge Laiquan " 9, baffle ring 10, blanking plug 11.One through hole is respectively arranged between piston and central tube, cylinder sleeve and central tube, lower contact and the central tube, and piston and lower contact inner annular sectional area sum equal cylinder sleeve inner annular sectional area.Movable sealing place between cylinder sleeve 7 and the central tube 2 has " Ge Laiquan ".
The utility model compared with prior art, have the following advantages: respectively design a through hole 12,13,14 between piston 5 and central tube 2, cylinder sleeve 7 and central tube 2, lower contact 8 and central tube 2, piston 5 and lower contact 8 inner annular sectional areas 17 and 19 sums equal cylinder sleeve 7 inner annular sectional areas 18.Like this, only depend on throw different size blanking plug 11 and suppress can flexible gauge tap valve switch.In addition, the place of exposing between cylinder sleeve 7 and the central tube 2 adopts " Ge Laiquan " 9 sealings, and gap between the two is bigger, in cycle operation repeatedly, is difficult for stuckly by sand and other impurity between cylinder sleeve 7 and the central tube 2, and the switch valve multiple switching seals more reliable.
Description of drawings
Below in conjunction with accompanying drawing the utility model multiple switching valve is described in further detail.
Fig. 1 is the utility model multiple switching valve closed condition structural representation.
Fig. 2 is and the supporting plug structure schematic diagram of the utility model multiple switching valve.
Fig. 3 is the utility model multiple switching opening of valves status architecture schematic diagram.
Specific embodiment
As shown in Figure 1 and Figure 2, the utility model is by top connection 1, central tube 2, gland 3, lock ring 4, piston 5, round section joint ring 6, cylinder sleeve 7, lower contact 8, " Ge Laiquan " 9, baffle ring 10, supporting blanking plug 11, totally 11 parts are formed.By " Ge Laiquan ", round section joint ring sealing, have a plurality of side openings as circulation canal on part 7, the part 8 between part 7 and the part 8.
The course of work of the present utility model is as follows: Fig. 1 is for a kind of multiple switching valve and be sealing state.In central tube 2, suppress, at this moment, pressure acts on piston 5, cylinder sleeve 7 and the lower contact 8 inner annular sectional areas 17,18,19 by hole 12,13,14, because inner annular sectional area 17 and 19 sums equal sectional area 18, pressure size, the direction of bearing on three sectional areas cancel each other out, and valve is sealing state.Fig. 3 is the opening of this utility model.When blanking plug 11 on the step 15 time, is suppressed in central tube 2, at this moment in central tube 2, multiple switching valve internal pressure is different from external pressure, pressure acts on the piston 5 inner annular sectional areas 17 by hole 12, and it is descending to promote piston 5, and switch valve is opening.On the step 16 time, suppress in central tube 2 in central tube 2 when blanking plug 11, at this moment, pressure acts on piston 5 and the cylinder sleeve 7 inner annular areas 17,18 by hole 12,13, and under pressure, piston 5 is up, and switch valve is got back to closed condition again.
After adopting structure of the present utility model, when internal pressure during greater than external pressure, pressure acts on piston 5 and the cylinder sleeve 7 inner face effective areas, and active force up and down cancels each other out, and vice versa, makes switch valve be sealing state.When cutting out, switch valve is not subjected to the influence of inside and outside differential pressure.When switch valve is opened, there is not pressure reduction inside and outside the cylinder sleeve 7, there is balance naturally, under certain additional external force (lock ring coupling mechanism force) effect, switch valve is held open.Have only and thrown after the blanking plug 11, the people just suppresses for separating one or two pressure cross section again, makes piston 5 be subjected to making a concerted effort up or down, produces displacement, reaches and opens or close purpose.
In order to strengthen the sealing performance of valve.The utility model also movable sealing place between cylinder sleeve 7 and central tube 2 has been installed " Ge Laiquan " 9, like this, when the circulation port of cylinder sleeve 7 and central tube 2 when threshold switch moves, hole on the cylinder sleeve 7 is through " Ge Laiquan " sealing device the time, because " Ge Laiquan " has certain elasticity, therefore be difficult for being worn away, thereby guaranteed the sealing of valve.
The utility model multiple switching valve only depends on the blanking plug of throwing different size and is just suppressing and controlling out and close, and switching process can repeatedly repeat.Therefore,, it can be designed to the switch valve of multiple latus rectum, thereby realize multistage use by changing the size between cylinder sleeve and the central tube, can positive and negative circulation well cleanup or selectivity recover the oil (every take out, pilot production etc.).
Claims (2)
1. multiple switching valve, comprise top connection (1), central tube (2), gland (3), lock ring (4), piston (5), round section joint ring (6), cylinder sleeve (7), lower contact (8), " Ge Laiquan " (9), baffle ring (10), blanking plug (11), it is characterized in that between piston (5) and the central tube (2), between cylinder sleeve (7) and the central tube (2), between lower contact (8) and the central tube (2) through hole (12 is arranged respectively, 13,14), piston (5) and the interior inner annular sectional area of lower contact (8) (17) equal cylinder sleeve (7) inner annular sectional area (18) with (19) sum.
2. multiple switching valve according to claim 1 is characterized in that movable sealing place between cylinder sleeve (7) and the central tube (2) has " Ge Laiquan " (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254192 CN2568807Y (en) | 2002-09-10 | 2002-09-10 | Multiple switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254192 CN2568807Y (en) | 2002-09-10 | 2002-09-10 | Multiple switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2568807Y true CN2568807Y (en) | 2003-08-27 |
Family
ID=33723097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02254192 Expired - Lifetime CN2568807Y (en) | 2002-09-10 | 2002-09-10 | Multiple switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2568807Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261231A (en) * | 2011-02-23 | 2011-11-30 | 新疆华油油气工程有限公司 | Repeated switch sliding sleeve device |
| CN103161427A (en) * | 2013-03-28 | 2013-06-19 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN103299028A (en) * | 2010-10-18 | 2013-09-11 | Ncs油田服务股份有限公司加拿大分公司 | Tools and methods for use in completion of a wellbore |
| CN104453779A (en) * | 2014-12-02 | 2015-03-25 | 东营市福利德石油科技开发有限责任公司 | Multifunctional circulating valve for deep sea oil and gas well |
| CN106321013A (en) * | 2016-10-21 | 2017-01-11 | 西南石油大学 | Single ball throwing type repeated circulating valve |
| CN115929294A (en) * | 2023-03-13 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | General trial production tool for operation |
-
2002
- 2002-09-10 CN CN 02254192 patent/CN2568807Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103299028A (en) * | 2010-10-18 | 2013-09-11 | Ncs油田服务股份有限公司加拿大分公司 | Tools and methods for use in completion of a wellbore |
| CN103299028B (en) * | 2010-10-18 | 2016-06-15 | Ncs油田服务股份有限公司加拿大分公司 | The instrument used in the completing of pit shaft and method |
| CN106121599A (en) * | 2010-10-18 | 2016-11-16 | Ncs油田服务股份有限公司加拿大分公司 | The tool and method used in the completing of pit shaft |
| CN102261231A (en) * | 2011-02-23 | 2011-11-30 | 新疆华油油气工程有限公司 | Repeated switch sliding sleeve device |
| CN102261231B (en) * | 2011-02-23 | 2014-04-16 | 新疆华油油气工程有限公司 | Repeated switch sliding sleeve device |
| CN103161427A (en) * | 2013-03-28 | 2013-06-19 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN103161427B (en) * | 2013-03-28 | 2015-07-01 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN104453779A (en) * | 2014-12-02 | 2015-03-25 | 东营市福利德石油科技开发有限责任公司 | Multifunctional circulating valve for deep sea oil and gas well |
| CN104453779B (en) * | 2014-12-02 | 2017-03-29 | 东营市福利德石油科技开发有限责任公司 | Deep-sea oil gas well multifunctional circulation valve |
| CN106321013A (en) * | 2016-10-21 | 2017-01-11 | 西南石油大学 | Single ball throwing type repeated circulating valve |
| CN115929294A (en) * | 2023-03-13 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | General trial production tool for operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120910 Granted publication date: 20030827 |