CN111022658A - Machining and assembling method based on system with sea valve and transmission device of sea valve - Google Patents

Machining and assembling method based on system with sea valve and transmission device of sea valve Download PDF

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Publication number
CN111022658A
CN111022658A CN201911276818.5A CN201911276818A CN111022658A CN 111022658 A CN111022658 A CN 111022658A CN 201911276818 A CN201911276818 A CN 201911276818A CN 111022658 A CN111022658 A CN 111022658A
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China
Prior art keywords
valve
preset
precision
base
sea
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CN201911276818.5A
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Chinese (zh)
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CN111022658B (en
Inventor
黄小勇
黄晓黎
樊爱春
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Wuchang Shipbuilding Industry Group Co Ltd
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Wuchang Shipbuilding Industry Group Co Ltd
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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
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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

Abstract

The invention discloses a processing and assembling method based on a system with a sea valve and a transmission device thereof, which comprises the following steps: pre-mounting a valve seat on a base; finely machining the mounting surface of the base and the sealing surfaces of all the valve seats to the precision of preset parallelism, and machining the position degrees of the center lines of the base and the valve seats to the precision of preset position degrees; finish machining the bottom surface, the guide surfaces and the deep holes of the guide support so as to ensure that the precision from the bottom surface of the guide support to the preset parallelism, the precision from all the guide surfaces of the guide support to the preset perpendicularity and the precision from the hole pitch size tolerance between all the deep holes to the first preset size tolerance; and installing the guide support after finish machining on the base. The invention can eliminate part of factors influencing the quality of the system in the assembly process and improve the qualification rate of the system.

Description

Machining and assembling method based on system with sea valve and transmission device of sea valve
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a processing and assembling method based on a system with a sea valve and a transmission device of the sea valve.
Background
The sea valve is installed on the ballast water tank of the ship body and is used for opening when the ballast water tank is filled with water or drained water so as to allow seawater in the ballast water tank to enter and exit. The sea valve and its transmission device in the ballast water tank are important components of the submerged floating system, and include sea valve with double hull and single hull and its transmission device. At present, most of domestic sea valves are double-shell sea valves and transmission devices thereof. Referring to fig. 1, a sea valve with double housings and a transmission device thereof in the prior art is shown, wherein the sea valve is opened and closed by controlling a valve cover by means of double-cylinder hydraulic pressure, and two sealing surfaces are opposite.
The single-shell sea valve and the transmission device thereof adopt a two-force rod principle for self-locking, the two sealing surfaces are at the same side, the sealing reliability of the valve cover in a closed state on the valve seat is guaranteed, the single-shell sea valve and the transmission device thereof can be remotely controlled to be opened and closed through a hydraulic motor or manually, and the single-shell sea valve and the transmission device thereof are less in design.
Therefore, the design principle of the double-shell sea chest valve and the transmission device thereof is different from that of the single-shell sea chest valve and the transmission device thereof, and the structural connection mode is different, so that the manufacturing mode of the double-shell sea chest valve and the transmission device thereof is different, and the conventional assembling method of the double-shell sea chest valve and the transmission device thereof cannot be suitable for the manufacturing and processing of the single-shell sea chest valve and the transmission device thereof.
By taking a single-shell sea valve and a transmission device thereof as an example in the prior art, the application number is 201711362879.4, and the Chinese patent invention entitled "a system containing the sea valve and the transmission device thereof" discloses a system containing the sea valve and the transmission device thereof, wherein a sea valve body comprises a valve seat, a valve cover, rocker arms, a connecting rod, a balance beam and a transmission rod, the balance beam is movably arranged on the valve seat, the valve cover is arranged on two sides of the balance beam, the outer end of the rocker arm is connected with the valve cover through a first spherical hinge, the inner end of the rocker arm is hinged with the valve seat, the rocker arm is hinged with the balance beam through the connecting rod, the balance beam, the connecting rod and the rocker arm form a rocker arm and connecting rod mechanism, and; the transmission device comprises a driving mechanism, a transmission shaft, a bevel gear nut and a ball head screw rod, one end of the transmission shaft is connected with the driving mechanism, the other end of the transmission shaft is connected with the bevel gear, the bevel gear nut is meshed with the bevel gear, the ball head screw rod is connected with the bevel gear nut to form a screw rod pair, and the ball head screw rod is connected with a transmission rod of the sea valve body through a second spherical hinge.
The sea valve and the transmission device thereof need to realize stable rotation and free-clamping opening and closing of the water inlet and outlet of the ballast water tank within a specified time, if the structure is directly assembled, the installation precision and the sealing quality of equipment cannot be guaranteed, the phenomenon of unstable rotation is easy to occur in the rotating process of the transmission mechanism, and in order to guarantee the stable and smooth performance of power efficient remote transportation, the sea valve and the transmission device thereof based on the assembling method can eliminate part of factors influencing the quality of the equipment in the assembling process, and the qualification rate of the equipment is improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a processing and assembling method based on a system with a sea valve and a transmission device thereof, which can eliminate part of factors influencing the quality of the system in the assembling process and improve the qualification rate of the system.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a machining and assembling method based on a system having a sea valve and a transmission device thereof, including the following steps:
pre-mounting a valve seat on a base;
finely machining the mounting surface of the base and the sealing surfaces of all the valve seats to the precision of preset parallelism, and machining the position degrees of the center lines of the base and the valve seats to the precision of preset position degrees;
finish machining the bottom surface, the guide surfaces and the deep holes of the guide support so as to ensure that the precision from the bottom surface of the guide support to the preset parallelism, the precision from all the guide surfaces of the guide support to the preset perpendicularity and the precision from the hole pitch size tolerance between all the deep holes to the first preset size tolerance;
and installing the guide support after finish machining on the base.
On the basis of the technical scheme, the method comprises the following specific steps of:
and taking the base and the valve seat of the lock as assembly references, and installing the guide support after finish machining on the base according to the bottom surface of the guide support after finish machining and the installation surface of the base.
On the basis of the technical scheme, the precision of the preset parallelism is 0.02 mm; the precision of the preset position degree is 0.05 mm.
On the basis of the technical scheme, the precision of the preset verticality is 0.02 mm; the first predetermined dimensional tolerance has a precision of 0.03 mm.
On the basis of the technical scheme, the balance slide block is arranged between the two guide surfaces on the guide bracket; two rotating arms are symmetrically arranged in four deep holes of the guide support close to the bottom, and the two rotating arms are connected with the balance sliding block.
On the basis of the technical scheme, after the guide support after finish machining is installed on the base, the machining and assembling method further comprises the steps of sequentially installing the balance slide block, the spiral transmission mechanism, the transmission device, the connecting rod, the rotating arm and the valve cover; the specific steps of installing the valve cover are as follows:
placing the valve cover on the valve seat, detecting whether the contact ratio of the valve cover and the valve seat meets a preset contact ratio, and if so, turning to the next step;
installing a sealing ring on the valve cover, and smearing marking powder on the sealing ring;
placing the valve cover on the valve seat, leaving an impression on the valve seat, detecting whether the width dimensional tolerance of the impression is not more than a preset width tolerance, and if so, turning to the next step;
connecting the rotating arm and the valve covers by using a ball head connecting rod, driving the spiral transmission mechanism to move by using a transmission device so as to close or open the two valve covers, detecting whether the widths of the indentations on the two valve seats are equal to a preset indentation width value again, and if so, finishing the installation of the valve covers; if not, adjusting the nut between the ball head connecting rod and the rotating arm until the widths of the indentations on the two valve seats are equal to a preset indentation width value.
On the basis of the technical scheme, after the fact that the widths of the indentations on the two valve seats are equal to the preset indentation width value is detected, the locking nut is installed on the nut.
On the basis of the technical scheme, the preset indentation width value is 12 mm.
On the basis of the technical scheme, the sealing ring is a T-shaped sealing ring.
On the basis of the technical scheme, a universal coupling is used for connecting the transmission device and the spiral transmission mechanism.
Compared with the prior art, the invention has the advantages that:
(1) according to the processing and assembling method of the system with the sea valve and the transmission device thereof, which is manufactured by the processing and assembling method, in the whole process of opening or closing the valve cover, the motion is stable without clamping stagnation, the completion time is 3-5 s, the maximum stroke of the valve cover is more than or equal to 300mm, the self-locking function after the valve cover is closed is good, partial factors influencing the quality of the system in the assembling process can be eliminated, and the qualification rate of the system is improved.
(2) The base, the valve seat and the guide support are finely machined, so that the deviation between the center of the valve cover and the center of the base is reduced, the deviation between centers of deep holes is reduced, and the uniformity of the compression width of the sealing ring is ensured; the indentation width of the T-shaped sealing ring on the valve cover is about 12mm, the compression amount of the sealing ring is about 2.5mm, and the effective sealing reliability of the sealing width of about 12mm can be ensured; and the sealing width is adjustable.
Drawings
FIG. 1 is a schematic structural diagram of a dual-casing sea chest valve and its transmission device in the prior art;
FIG. 2 is a schematic diagram of a system having a sea chest and its transmission in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of a valve seat mounted to a base in an embodiment of the present invention;
FIG. 4 is a schematic view of a guide bracket mounted on a base in an embodiment of the present invention;
FIG. 5 is a front elevational view in full section of the guide bracket;
FIG. 6 is a left side elevational view in full section of the guide bracket;
FIG. 7 is a schematic top view of the guide bracket;
FIG. 8 is a schematic view of a sea chest;
FIG. 9 is a schematic view of the valve cover coupled to the swivel arm;
in the figure: 1. a base; 10. a mounting surface; 2. a guide bracket; 21. a bottom surface; 22. a guide surface; 23. deep holes; 3. a balancing slide block; 4. a screw drive mechanism; 5. a transmission device; 6. a valve seat; 60. a sealing surface; 7. a connecting rod; 8. a rotating arm; 81. a ball head connecting rod; 82. a nut; 83. locking the nut; 9. a valve cover; 90. and (5) sealing rings.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Examples
Referring to fig. 2 to 4, an embodiment of the present invention provides a machining and assembling method based on a system having a sea valve and a transmission device thereof, including the following steps:
step 1: providing parts of a system to be assembled having a sea chest and its transmission; the parts comprise a base 1, a guide support 2, a balance slide block 3, a spiral transmission mechanism 4, a transmission device 5, at least two valve seats 6, connecting rods 7, rotating arms 8 and valve covers 9, wherein the number of the connecting rods 7 corresponds to that of the valve seats 6.
Step 2: the valve seat 6 is mounted on the base 1.
And step 3: and finishing the mounting surface 10 of the base 1 and the sealing surfaces 60 of all the valve seats 6 to the precision of preset parallelism, and finishing the position degree of the central lines of the base 1 and the valve seats 6 to the precision of preset position degree.
And 4, step 4: and finish machining the bottom surface 21, the guide surfaces 22 and the deep holes 23 of the guide support 2 so as to ensure that the precision of the bottom surface of the guide support 2 to the preset parallelism, the precision of the bottom surface to the preset perpendicularity of all the guide surfaces 22 of the guide support 2 and the bottom surface and the precision of the pitch-to-pitch dimensional tolerance among all the deep holes 23 to the first preset dimensional tolerance.
And 5: and installing the guide bracket 2 after finish machining on the base 1. Specifically, the finished guide holder 2 is mounted on the base 1 based on the bottom surface 21 of the finished guide holder 2 and the mounting surface 10 of the base 1 with the latched base 1 and the valve seat 6 as the assembly reference.
Step 6: the balance slide block 3, the spiral transmission mechanism 4, the transmission device 5, the connecting rod 7, the rotating arm 8 and the valve cover 9 are sequentially installed. The installation process of the balance slide block 3, the screw transmission mechanism 4, the transmission device 5, the connecting rod 7, the rotating arm 8 and the valve cover 9 which are sequentially installed in the step 6 can refer to a conventional assembly mode, and is not described herein again.
In the embodiment of the invention, the system with the sea valve and the transmission device thereof manufactured by using the processing and assembling method is stable in movement without clamping stagnation in the whole process of opening or closing the valve cover, the completion time is 3-5 s, the maximum stroke of the valve cover is more than or equal to 300mm, the self-locking function of the closed valve cover is good, partial factors influencing the quality of the system in the assembling process can be eliminated, and the qualification rate of the system is improved.
In this embodiment, the opening and closing of the valve cap in the fabricated sea chest is required to be driven by the transmission device 5, and the screw transmission mechanism 4 in the sea chest comprises a bevel gear, a bevel gear nut and a ball screw, the bevel gear is connected with the transmission device 5, the bevel gear nut is meshed with the bevel gear, the ball screw is connected with the bevel gear nut to form a screw pair, the ball end of the ball screw is connected with the balance slider 3, i.e. the rotation of the transmission device 5 can drive the bevel gear to rotate, the bevel gear nut is externally meshed with the bevel gear and drives the bevel gear nut to rotate, the ball screw is connected with the bevel gear nut to form a screw pair, the rotation of the bevel gear nut drives the ball screw to make a linear motion, and the motion direction of the ball screw is related to the rotation direction of the bevel gear nut, therefore, the ball screw can drive the balance slider 3 to make a reciprocating linear motion on the guide surface, thereby controlling the opening or closing of the valve cover 9.
More specifically, the precision of the preset parallelism is 0.02 mm; the precision of the preset position degree is 0.05 mm. The precision of the preset verticality is 0.02 mm; the first predetermined dimensional tolerance has a precision of 0.03 mm. The system for processing and assembling is tested, the fluency of relative motion between parts is ensured under the limitation of the precision parameters, partial factors influencing the quality of the system in the assembling process can be eliminated, and the qualification rate of the system is improved.
Referring to fig. 5 to 7, specifically, the balance sliding block 3 is installed between two guide surfaces 22 on the guide bracket 2; two rotating arms 8 are symmetrically arranged in four deep holes 23 of the guide support 2 close to the bottom, and the two rotating arms 8 are also connected with the balance slide block 3. The rotating arm 8 for controlling the valve cover 9 to open or close is connected to the guide bracket 2, and the connecting rod 7 is connected to the guide bracket 2 through the balance slide block 3, so that the operability of the movement of the valve cover 9 is further ensured.
Referring to fig. 8 to 9, in the present embodiment, the step 6 of installing the valve cover 9 specifically includes:
placing the valve cover 9 on the valve seat 6, detecting whether the contact ratio of the valve cover 9 and the valve seat 6 meets a preset contact ratio, and if so, turning to the next step;
installing a sealing ring 90 on the valve cover 9, and coating marking powder on the sealing ring 90;
placing the valve cover 9 on the valve seat 6, leaving an indentation on the valve seat 6, detecting whether the width dimensional tolerance of the indentation is not more than the preset width tolerance, and if so, turning to the next step;
connecting the rotating arm 8 and the valve cover 9 by using a ball head connecting rod 81, driving the screw transmission mechanism 4 to move by using a transmission device 5 so as to close or open the two valve covers 90, detecting whether the widths of the indentations on the two valve seats 6 are equal to a preset indentation width value again, and if so, finishing the installation of the valve cover 9; if not, adjusting the nut 82 between the ball head connecting rod 81 and the rotating arm 8 until the width of the indentations on the two valve seats 6 is equal to a preset indentation width value. In this embodiment, the marking powder is white powder, the width of the impression is recorded by using the white powder, the marking powder is visible and easy to operate, and the impressions of the two valve covers 9 on the valve seat 6 are respectively controllable, so that the tightness of the two installed valve covers 9 can be ensured.
Further, after detecting that the widths of the indentations on the two valve seats 6 are equal to the preset indentation width value, a locking nut 83 is mounted on the nut 82. The locking nut 83 can prevent the nut 82 from loosening in the later rotation process of the bonnet 9, and further guarantee the sealing reliability of the closing of the bonnet 9 on the valve seat 6.
The width of the indentation can be adjusted by using the nut 82, and in order to meet the sealing requirement of the sea valve, the preset indentation width value is 12 mm. Through detecting, the compression amount of the sealing ring is about 2.5mm when the indentation width value is 12mm, and the effective sealing reliability of the sealing width of about 12mm can be ensured.
Specifically, the seal ring 90 is a T-shaped seal ring. The T-shaped sealing ring can be clamped in the valve cover 9 and is not easy to drop, and meanwhile, the width of the indentation is also easy to control, so that a target indentation can be obtained in indentation detection conveniently.
In this embodiment, a universal joint is used to connect the transmission 5 and the screw transmission 4. The system requires to be able to move steadily, therefore, uses universal joint to link to each other transmission 5 and screw drive mechanism 4, guarantees both connection stability, and wherein, universal joint's connected mode's use is comparatively extensive, consequently, universal joint does not make the drawing notes in the description drawing.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims (10)

1. A processing and assembling method based on a system with a sea valve and a transmission device thereof is characterized by comprising the following steps:
pre-mounting a valve seat (6) on the base (1);
finely machining the mounting surface (10) of the base (1) and the sealing surfaces (60) of all the valve seats (6) to the precision of preset parallelism, and machining the position degrees of the center lines of the base (1) and the valve seats (6) to the precision of preset position degrees;
finish machining the bottom surface (21), the guide surfaces (22) and the deep holes (23) of the guide support (2) so as to ensure that the precision of the bottom surface of the guide support (2) to the preset parallelism, the precision of all the guide surfaces (22) of the guide support (2) to the preset perpendicularity and the precision of the pitch-row size tolerance between all the deep holes (23) to the first preset size tolerance;
and installing the guide bracket (2) after finish machining on the base (1).
2. The process assembly method based on a system with sea chests and their transmissions according to claim 1, characterized in that the specific steps of mounting the finished guide bracket (2) on the base (1) are:
and taking the locked base (1) and the valve seat (6) as assembly reference, and mounting the guide bracket (2) after finish machining on the base (1) according to the bottom surface (21) of the guide bracket (2) after finish machining and the mounting surface (10) of the base (1).
3. The process assembly method based on a system with sea chests and their transmissions according to claim 1, characterized in that the precision of said preset parallelism is 0.02 mm; the precision of the preset position degree is 0.05 mm.
4. The process assembly method based on the system with sea chests and their transmissions according to claim 1, characterized in that the precision of the predetermined perpendicularity is 0.02 mm; the first predetermined dimensional tolerance has a precision of 0.03 mm.
5. The process assembly method based on a system with sea chests and their transmissions according to claim 1, characterized in that the balancing slide (3) is mounted between two guide surfaces (22) on the guide bracket (2); two rotating arms (8) are symmetrically arranged in four deep holes (23) of the guide support (2) close to the bottom, and the two rotating arms (8) are also connected with the balance slide block (3).
6. The process assembly method based on the system with sea chests and its transmission according to claim 1, characterized in that after installing the finished guide bracket (2) on the base (1), the process assembly method further comprises installing the balancing slide (3), the screw transmission (4), the transmission (5), the connecting rod (7), the rotating arm (8) and the valve cover (9) in sequence; the specific steps of installing the valve cover (9) are as follows:
placing the valve cover (9) on the valve seat (6), detecting whether the contact ratio of the valve cover (9) and the valve seat (6) meets a preset contact ratio, and if so, turning to the next step;
installing a sealing ring (90) on the valve cover (9), and coating marking powder on the sealing ring (90);
placing the valve cover (9) on the valve seat (6), leaving an indentation on the valve seat (6), detecting whether the width dimensional tolerance of the indentation is not greater than a preset width tolerance, and if so, turning to the next step;
connecting the rotating arm (8) and the valve cover (9) by using a ball head connecting rod (81), driving the spiral transmission mechanism (4) to move by using a transmission device (5) so as to close or open the two valve covers (90), detecting whether the indentation widths on the two valve seats (6) are equal to a preset indentation width value again, and if so, finishing the installation of the valve cover (9); if not, adjusting a nut (82) between the ball head connecting rod (81) and the rotating arm (8) until the widths of the indentations on the two valve seats (6) are equal to a preset indentation width value.
7. The process assembly method based on a system with a sea chest and its transmission according to claim 6, characterized in that after detecting that the indentation width on both of the valve seats (6) is equal to the preset indentation width value, a locking nut (83) is mounted on the nut (82).
8. The process assembly method based on a system with a sea chest and its transmission according to claim 6, characterized in that the preset indentation width value is 12 mm.
9. The process assembly method based on a system with a sea chest and its transmission according to claim 6, characterized in that the sealing ring (90) is a T-shaped sealing ring.
10. Method for manufacturing and assembling a system with a sea chest and its transmission according to claim 1, characterized in that a universal joint is used to connect the transmission (5) and the screw drive (4).
CN201911276818.5A 2019-12-12 2019-12-12 Machining and assembling method based on system with sea valve and transmission device of sea valve Active CN111022658B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986301A (en) * 1989-03-08 1991-01-22 Biffi Italia S.R.L. Sub-sea valve actuator
CN1644268A (en) * 2003-12-19 2005-07-27 阿维可设备系统有限及两合公司 Valve and method for producing a valve
CN204187018U (en) * 2014-10-15 2015-03-04 陈文龙 The device of the open and close in kingston valve
CN105020405A (en) * 2015-07-08 2015-11-04 宝鸡石油机械有限责任公司 Subsea valve capable of being quickly opened and closed
CN108119655A (en) * 2017-12-18 2018-06-05 中国舰船研究设计中心 A kind of kingston valve and its transmission device
CN110296268A (en) * 2019-06-28 2019-10-01 中国舰船研究设计中心 A kind of emergency flap valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986301A (en) * 1989-03-08 1991-01-22 Biffi Italia S.R.L. Sub-sea valve actuator
CN1644268A (en) * 2003-12-19 2005-07-27 阿维可设备系统有限及两合公司 Valve and method for producing a valve
CN204187018U (en) * 2014-10-15 2015-03-04 陈文龙 The device of the open and close in kingston valve
CN105020405A (en) * 2015-07-08 2015-11-04 宝鸡石油机械有限责任公司 Subsea valve capable of being quickly opened and closed
CN108119655A (en) * 2017-12-18 2018-06-05 中国舰船研究设计中心 A kind of kingston valve and its transmission device
CN110296268A (en) * 2019-06-28 2019-10-01 中国舰船研究设计中心 A kind of emergency flap valve

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