CN107965607B - Deep sea ball valve control system - Google Patents
Deep sea ball valve control system Download PDFInfo
- Publication number
- CN107965607B CN107965607B CN201711187448.9A CN201711187448A CN107965607B CN 107965607 B CN107965607 B CN 107965607B CN 201711187448 A CN201711187448 A CN 201711187448A CN 107965607 B CN107965607 B CN 107965607B
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- China
- Prior art keywords
- piston
- shifting fork
- hydraulic
- ball valve
- control system
- 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 - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 239000010985 leather Substances 0.000 claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000013535 sea water Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
- F16K31/1635—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/502—Mechanical actuating means with screw-spindle or internally threaded actuating means actuating pivotable valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/522—Mechanical actuating means with crank, eccentric, or cam comprising a tap or cock
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a deep sea ball valve control system, which comprises: hydraulic source, underwater control module and actuating mechanism. The actuating mechanism comprises a driving module, a shifting fork and a return spring, and the shifting fork is arranged between the driving module and the return spring; the driving module comprises a piston, a lead screw and a nut, wherein the right end of the piston is provided with a piston rod, and the reset spring is a combined spring; a piston rod at the right end of the piston is parallel to the guide rod and is connected with the guide block through a pin shaft, the guide block can axially slide along the guide rod and limit axial displacement, a sliding groove is formed in the crank, and the sliding block is matched with the sliding groove; the hydraulic drive and the ROV drive are respectively used for controlling the ball valve, and the mutual interference is avoided; an oil return leather bag in the underwater control module compensates pressure change in the cavity. The invention has simple structure and flexible operation, and can realize pressure balance without arranging a pressure compensation device on the actuating mechanism.
Description
The technical field is as follows:
the invention relates to a valve control system, in particular to a deep sea ball valve control system. Belongs to the field of marine petroleum engineering.
Background art:
the underwater ball valve is applied to an underwater oil pipeline and used for controlling the make-and-break of crude oil, and the reliability of the pipeline is determined to a great extent because a medium directly flows through the deep sea ball valve. With the continuous promotion of the development of marine oil to deep sea in China, the demand on underwater equipment is continuously increased, and the underwater valve has important significance as a connecting device for an underwater oil pipeline and other underwater equipment. In the deep water pipeline medium transportation, the ball valve has the advantages of low pressure drop, high reliability and the like, and is continuously the first choice of the underwater valve.
As an underwater device, the device is monopolized abroad for a long time, the autonomous development of offshore oil in China is severely restricted, and the localization of the offshore oil is realized by relatively perfect technology in China so far. The existing deep sea ball valve control system has the hidden danger of oil leakage due to the complex structure of a pressure compensation device arranged on an actuating mechanism.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and provides a novel deep sea ball valve control system which is simple in structure and flexible in operation, and adopts the following technical scheme:
a deep sea ball valve control system comprises a hydraulic source, an underwater control module and an actuating mechanism. The hydraulic source is positioned on the platform above the water surface and provides hydraulic pressure for the whole hydraulic system; the underwater control module is arranged on an underwater production facility to ensure the quick response of the system; the actuating mechanism comprises a driving module, a shifting fork and a return spring, and the shifting fork is arranged between the driving module and the return spring; the shifting fork comprises a crank, a sliding block, a pin shaft, a guide block, a guide rod and an output shaft, the driving module comprises a piston, a lead screw and a nut, the right end of the piston is provided with a piston rod, a return spring adopts a combined spring, the piston rod at the right end of the piston is parallel to the guide rod and is connected with the guide block through the pin shaft, the guide block can slide axially along the guide rod and limits axial displacement, the crank is provided with a sliding groove, the sliding block and the sliding groove are mutually matched, and the upper end of the output; the driving form is divided into hydraulic driving and ROV driving, the left end of the screw rod is provided with an interface connected with the ROV, an oil return leather bag is designed in the underwater control module to serve as a pressure compensation device, bidirectional dynamic balance between each cavity in the actuating mechanism and seawater is realized through a flow passage in the shell, remote control is realized by adopting a composite electro-hydraulic control system, and locking can be realized while the oil way reversing is realized by the two-position three-way electro-hydraulic reversing valve.
The driving module is divided into hydraulic driving and ROV driving, and the hydraulic driving and the ROV driving respectively control the ball valve without mutual interference.
The reset spring adopts a combined spring, so that the actuating mechanism can bear larger load and has compact structure.
The pressure compensation device of the actuating mechanism is an oil return leather bag arranged in the underwater control module, and bidirectional dynamic balance with the external seawater pressure is realized through an internal flow passage of the cavity of the actuating mechanism.
The invention has the beneficial effects that: under normal conditions, the hydraulic pressure compresses the return spring and simultaneously drives the output shaft to rotate from 0 degree to 90 degrees, so that the ball valve is opened, and when the system pressure is lower than the required pressure, the actuating mechanism resets under the action of the spring force, so that the closing of the ball valve is realized; when a hydraulic system breaks down, the ROV starts to work, the manipulator rotates right, the rotary motion of the manipulator is converted into the linear motion of the nut through the transmission of the screw rod and the nut, the piston is further pushed to move, the reset spring is compressed, and meanwhile, the output shaft is driven to rotate, so that the ball valve is opened; otherwise, the manipulator rotates left, and the closing of the ball valve can be realized under the restoring force action of the return spring.
Compared with the prior art, the invention has the advantages of simple structure, convenient operation, long service life, safety and reliability.
Description of the drawings:
FIG. 1: control system schematic diagram of the invention
FIG. 2: the structure of the actuating mechanism of the invention is schematically shown
FIG. 3: schematic structure of driving module
FIG. 4: schematic structure of shifting fork
FIG. 5: actuator initial state front view
FIG. 6: left view of the initial state of the actuator
FIG. 7: actuator end state front view
Description of the symbols:
1. the hydraulic control system comprises a hydraulic source, 2, an underwater control module, 3, an actuating mechanism, 4, a driving module, 5, a shifting fork, 6, a return spring, 7, a shell, 8, a crank, 9 sliding blocks, 10, a pin shaft, 11, a guide block, 12, a guide rod, 13, an output shaft, 14, a piston with a piston rod at the right end, 15, a lead screw, 16, a nut, 17, a sliding groove, 18, an ROV interface, 19(20, 21), an internal flow passage, 22, an oil return leather bag, 23, a two-position three-way electro-hydraulic reversing valve, 24 and a visual position indicator
The specific implementation mode is as follows:
the invention is further illustrated by the following figures and examples:
as shown in fig. 1 to 7, a deep sea ball valve control system is characterized in that: the underwater hydraulic control system comprises a hydraulic source (1), an underwater control module (2) and an executing mechanism (3), wherein the executing mechanism (3) comprises a driving module (4), a shifting fork (5) and a return spring (6), and the shifting fork (5) is arranged between the driving module (4) and the return spring (6); the shifting fork (5) comprises a crank (8), a sliding block (9), a pin shaft (10), a guide block (11), a guide rod (12) and an output shaft (13), and the driving module (4) comprises a piston (14) with a piston rod at the right end, a lead screw (15) and a nut (16); a piston rod at the right end of a piston (14) is parallel to a guide rod (12) and is connected with a guide block (11) through a pin shaft (10), the guide block (11) can axially slide along the guide rod (12) and limit axial displacement, a sliding groove (17) is arranged on a crank (8), a sliding block (9) is matched with the sliding groove (17), and a visual position indicator (24) is designed at the upper end of an output shaft (13); the driving form is divided into hydraulic driving and ROV driving, the left end of a screw rod (15) is provided with an interface (18) connected with the ROV, an oil return leather bag (22) is arranged in an underwater control module (2) and serves as a pressure compensation device, bidirectional dynamic balance between each cavity in an actuating mechanism (3) and seawater is realized through internal flow channels (19, 20 and 21) of a shell (7), a composite electro-hydraulic control system is adopted to realize remote control, and locking can be realized while an oil way is reversed by a two-position three-way electro-hydraulic reversing valve (23).
The specific working process of the deep sea ball valve control system is as follows:
the hydraulic driving process comprises the following steps: the hydraulic source (1) is located on a platform above a water surface and provides hydraulic power for the whole hydraulic system, hydraulic oil at an outlet of the hydraulic source (1) reaches an oil inlet cavity of the actuating mechanism (3) through an umbilical cable via the underwater control module (2), the oil overcomes the elastic force of the right return spring (6) to enable the piston (14) with the piston rod to move, the pin shaft (10) is enabled to drive the sliding block (9) to slide in the sliding groove (17) and simultaneously drive the crank (8) to rotate, meanwhile, the output shaft (13) is driven to rotate from 0 degree to 90 degrees, the ball valve is enabled to be opened, and when the system pressure is lower than the required pressure, the actuating mechanism (3) can reset under the action of the spring force stored by the return spring (6).
ROV driving process: when the ROV starts to work, a manipulator on the ROV is connected with an ROV interface (18) of an actuating mechanism (3), the manipulator rotates right, the rotary motion of the manipulator is converted into the linear motion of a nut (16) through the transmission of a screw rod (15) and the nut (16), a piston (14) is further pushed to move, a reset spring (6) is compressed, and a crank (8) is driven to rotate at the same time, so that a ball valve is opened; otherwise, the manipulator turns left, can realize closing of ball valve under reset spring (6) restoring force effect, for satisfying ROV operation requirement, output shaft (13) upper end design has visual position indicator (24), observes indicating mechanism's position through ROV from taking underwater camera and carries out corresponding operation.
And (3) locking process: the hydraulic driving mode realizes oil way reversing through a two-position three-way electro-hydraulic reversing valve (23) and can also realize locking at the same time; under the ROV driving mode, the locking is realized by a screw rod (15) and a nut (16). The ball valve can be in a long-time opening state by both hydraulic driving and ROV driving, and the control of the ball valve is respectively carried out without mutual interference.
And (3) a pressure compensation process: when the underwater control device is thrown to the seabed, the hydraulic pipeline between the underwater control module (2) and the actuating mechanism (3) and the volume of each cavity of the actuating mechanism (3) generate certain variable quantity along with the change of the seawater pressure, and the variable quantity is compensated by an oil return leather bag (22) designed in the underwater control module (2); when the hydraulic source (1) is communicated with the umbilical cable, the hydraulic fluid of the hydraulic source (1) is slowly replenished to the oil return leather bag (23) due to the fact that the density of the hydraulic oil is slightly higher than that of the seawater until the leather bag is full.
The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.
Claims (1)
1. The utility model provides a deep sea ball valve control system which characterized in that: the underwater hydraulic control system comprises a hydraulic source (1), an underwater control module (2) and an executing mechanism (3), wherein the executing mechanism (3) comprises a driving module (4), a shifting fork (5) and a return spring (6), and the shifting fork (5) is arranged between the driving module (4) and the return spring (6); the shifting fork (5) comprises a crank (8), a sliding block (9), a pin shaft (10), a guide block (11), a guide rod (12) and an output shaft (13), the driving module (4) comprises a piston (14) with a piston rod at the right end, a lead screw (15) and a nut (16), and the reset spring (6) is a combined spring; a piston rod at the right end of a piston (14) is parallel to a guide rod (12) and is connected with a guide block (11) through a pin shaft (10), the guide block (11) can axially slide along the guide rod (12) and limit axial displacement, a sliding groove (17) is arranged on a crank (8), a sliding block (9) is matched with the sliding groove (17), and a visual position indicator (24) is designed at the upper end of an output shaft (13); the left end of a screw rod (15) is provided with an interface (18) connected with an ROV, an oil return leather bag (22) is designed in an underwater control module (2) to serve as a pressure compensation device, a combined spring is arranged in a shell (7), the end face of the shell connected with a shifting fork is provided with an internal flow passage, the end face of the shifting fork connected with the shell and the end face of the shifting fork connected with a driving module are both provided with internal flow passages, the abutting part of the combined spring close to the shifting fork side is also provided with an internal flow passage, the oil return leather bag realizes bidirectional dynamic balance of a piston rod cavity, a shifting fork inner cavity and a shell inner cavity of an execution mechanism and seawater through the abutting part, the shell and the internal flow passages arranged on the shifting fork, the driving module (4) is divided into hydraulic driving and ROV driving, the hydraulic driving adopts a composite electro-hydraulic control system to realize remote control, the two-position three-way electro-hydraulic directional valve (23) can realize locking while realizing oil way reversing, and the hydraulic drive and the ROV drive are respectively used for controlling the ball valve; when the compound electro-hydraulic control system breaks down, the ROV starts to work, the nut (16) only moves but does not rotate in the transmission process of the screw rod (15) and the nut (16), the screw rod (15) only moves but does not move, the nut (16) extends into the left end of the piston (14), and the right end face of the nut (16) is directly contacted with the inner end face of the left end of the piston (14); the actuating mechanism (3) is a single-action actuating mechanism with spring reset, the driving force compresses the reset spring (6) and simultaneously drives the output shaft (13) to rotate from 0 degree to 90 degrees, so that the ball valve is opened, and when the compound electro-hydraulic control system fails, the actuating mechanism (3) is reset by the restoring force of the reset spring (6) so that the ball valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187448.9A CN107965607B (en) | 2017-11-24 | 2017-11-24 | Deep sea ball valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711187448.9A CN107965607B (en) | 2017-11-24 | 2017-11-24 | Deep sea ball valve control system |
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| Publication Number | Publication Date |
|---|---|
| CN107965607A CN107965607A (en) | 2018-04-27 |
| CN107965607B true CN107965607B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711187448.9A Expired - Fee Related CN107965607B (en) | 2017-11-24 | 2017-11-24 | Deep sea ball valve control system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442086A (en) * | 2018-12-11 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of underwater ball valve executing agency based on both arms shift fork and Worm Wheel System |
| CN110454606A (en) * | 2019-09-04 | 2019-11-15 | 江苏威尔德钻采设备有限公司 | Ball valve shift fork actuator |
| CN112555492A (en) * | 2019-09-10 | 2021-03-26 | 山东奥博控制技术有限公司 | Hydraulic double-acting actuating mechanism with spring reset function |
| CN111810667B (en) * | 2020-07-13 | 2022-05-03 | 北京众博达石油科技有限公司 | Valve body and low-torque opening valve emergency cut-off device for pipeline |
| CN112555493A (en) * | 2020-12-07 | 2021-03-26 | 上海基恩自动化设备有限公司 | Corner resetting electro-hydraulic actuator and control method thereof, and closed-loop hydraulic circuit |
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|---|---|---|---|---|
| EP1500856A1 (en) * | 2003-07-23 | 2005-01-26 | BIFFI ITALIA S.r.L. | Submarine actuator for operating valves |
| CN2849270Y (en) * | 2005-11-30 | 2006-12-20 | 江苏神通阀门有限公司 | Nuclear pneumatic device |
| CN203532905U (en) * | 2013-10-25 | 2014-04-09 | 苏州道森钻采设备股份有限公司 | Hydraulic drive underwater gate valve capable of being driven by ROV |
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206246802U (en) * | 2016-12-12 | 2017-06-13 | 中船重工中南装备有限责任公司 | The manual integrated device of hydraulic control |
-
2017
- 2017-11-24 CN CN201711187448.9A patent/CN107965607B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| EP1500856A1 (en) * | 2003-07-23 | 2005-01-26 | BIFFI ITALIA S.r.L. | Submarine actuator for operating valves |
| CN2849270Y (en) * | 2005-11-30 | 2006-12-20 | 江苏神通阀门有限公司 | Nuclear pneumatic device |
| CN203532905U (en) * | 2013-10-25 | 2014-04-09 | 苏州道森钻采设备股份有限公司 | Hydraulic drive underwater gate valve capable of being driven by ROV |
| CN104819338A (en) * | 2015-05-04 | 2015-08-05 | 中国海洋石油总公司 | Deep sea valve execution mechanism of leather bag type two-way pressure dynamic balance compensation device |
| CN106594338A (en) * | 2015-11-02 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve triggered to act by unstable pressure lever during over-pressing |
Non-Patent Citations (1)
| Title |
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| "国外深海阀门用执行机构类型及应用介绍";刘少波等;《石油/化工通用机械》;20141231(第10期);第58页第2栏第13-16行、第59页第1栏第1-9行、第59页第1栏第19-21行、第59页第2栏第1-40行、第60页第1栏第1-38行、第60页第2栏第1-8行，附图2 * |
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| CN107965607A (en) | 2018-04-27 |
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