CN109027394A - A kind of quick action emergency valve - Google Patents

A kind of quick action emergency valve Download PDF

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Publication number
CN109027394A
CN109027394A CN201810842385.4A CN201810842385A CN109027394A CN 109027394 A CN109027394 A CN 109027394A CN 201810842385 A CN201810842385 A CN 201810842385A CN 109027394 A CN109027394 A CN 109027394A
Authority
CN
China
Prior art keywords
valve
valve seat
shift fork
sealing ring
sphere
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.)
Granted
Application number
CN201810842385.4A
Other languages
Chinese (zh)
Other versions
CN109027394B (en
Inventor
汤敏
张三喜
丁元亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Marine Machinery Plant Co Ltd
Original Assignee
Wuhan Marine Machinery Plant Co Ltd
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Filing date
Publication date
Application filed by Wuhan Marine Machinery Plant Co Ltd filed Critical Wuhan Marine Machinery Plant Co Ltd
Priority to CN201810842385.4A priority Critical patent/CN109027394B/en
Publication of CN109027394A publication Critical patent/CN109027394A/en
Application granted granted Critical
Publication of CN109027394B publication Critical patent/CN109027394B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0673—Composite packings
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0694—Spindle sealings
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a kind of quick action emergency valves, belong to marine machinery technical field.The quick action emergency valve includes ball valve and actuator, and actuator includes cabinet, hydraulic cylinder, guide rod, guide pad and shift fork；Hydraulic cylinder includes cylinder body and piston rod, and cylinder body is fixed on cabinet, and piston rod extends into cabinet；Guide rod is fixed in cabinet, and the axis of guide rod and the axis of piston rod are parallel；Guide pad is slidably disposed on guide rod, and is fixedly connected with piston rod；Shift fork includes shift fork body and shift fork arm, and shift fork arm clamps guide pad, and shift fork body is equipped with mounting hole, and shift fork body is set in outside driving stem by mounting hole, and the axis of driving stem and the axis of guide rod are vertical.The present invention includes hydraulic cylinder, guide rod, guide pad and shift fork etc. by adding actuator, actuator, and whole process is hydraulically operated completion, can in emergency circumstances operate ball valve in time there is fire etc. completely, cut off the pipeline to hose conveying crude oil.

Description

A kind of quick action emergency valve
Technical field
The present invention relates to marine machinery technical field, in particular to a kind of quick action emergency valve.
Background technique
Floating Production oil storage drainage device (English: Floating Production Storage&Offloading, letter Claim: FPSO) it is that Oil-gas Separation, processing oily wastewater, dynamic power, heat supply, the storage of crude oil products are carried out to the petroleum of exploitation And transport, integrate the comprehensive Large marine Petroleum Production base of personnel's inhabitation and the chain of command in production.Specifically, FPSO is transferred on the ship of FPSO from the crude oil that offshore mining goes out by pipe line under the ocean bundle of lines and is handled, after then handling Crude oil be stored in oil cargo tank, finally transport to shuttle tanker.
FPSO includes anchoring system, hull part, production equipment, uninstalling system and corollary system.Wherein uninstalling system packet Warping winch, hand-line reel vehicle etc. are included, is connect with shuttle tanker by hawser, hose etc., the crude oil that FPSO is stored, which is discharged into, to be worn Shuttle oil tanker.The cost of hose is very expensive, and the cost of a section hose is usually even up to a million in hundreds of thousands, and in uninstalling system Hose quantity can be usually reached tens sections, it is therefore desirable to avoid hose from damaging as far as possible.For example, in case of emergency, such as occurring When fire, emergency cut-off causes hose to damage to the pipeline of hose conveying crude oil in order to avoid the intensity of a fire is spread.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Ball valve is usually provided that on the pipeline of hose conveying crude oil.The opening and closing of ball valve is needed by staff manipulator Wheel realizes that staff is in emergency circumstances difficult operate ball valve in time there is fire etc., conveys crude oil to hose with cutting Pipeline.
Summary of the invention
The embodiment of the invention provides a kind of quick action emergency valves, and being able to solve the prior art can not in time in case of emergency Cut off the problem of conveying the pipeline of crude oil to hose.The technical solution is as follows:
The embodiment of the invention provides a kind of quick action emergency valve, the quick action emergency valve includes ball valve, and the ball valve includes Valve body, sphere, the first valve seat, the second valve seat, the first valve deck, the second valve deck and driving stem；The valve body is cylindrical body, described First valve deck is fixed on the first bottom surface of the valve body, recessed equipped with first close to the region of the valve body in first valve deck Slot, first valve seat are arranged in first groove；Second valve deck is fixed on the second bottom surface of the valve body, institute It states in the second valve deck and is equipped with the second groove close to the region of the valve body, second valve seat is arranged in second groove； The sphere is located in the valve body, and is folded between first valve seat and second valve seat；The driving stem First end is fixed on the sphere and the axis of the driving stem passes through the centre of sphere of the sphere, and the of the driving stem The valve body is stretched out from the side of the valve body in two ends；
The quick action emergency valve further includes actuator, and the actuator includes cabinet, hydraulic cylinder, guide rod, guide pad And shift fork；The hydraulic cylinder includes cylinder body and piston rod, and the cylinder body is fixed on the cabinet, and the piston rod is to described Extend in cabinet；The guide rod is fixed in the cabinet, and the axis of the guide rod is parallel with the axis of the piston rod； The guide pad is slidably disposed on the guide rod, and is fixedly connected with the piston rod；The shift fork includes shift fork Body and shift fork arm, the shift fork arm clamp the guide pad, and the shift fork body is equipped with mounting hole, and the shift fork body passes through described Mounting hole is set in outside the driving stem, and the axis of the driving stem is vertical with the axis of the guide rod.
Optionally, first valve seat and second valve seat surface opposite with the sphere use hard sealing material shape At.
Preferably, first valve seat surface opposite with the sphere is equipped with third groove, sets in the third groove There is the first soft seal ring；Second valve seat surface opposite with the sphere is equipped with the 4th groove, sets in the 4th groove There is the second soft seal ring.
It is highly preferred that first soft seal ring is equipped with the first wedge-shaped impression, first wedge-shaped impression is along described the The one valve seat surface opposite with the sphere extends；Second soft seal ring is equipped with the second wedge-shaped impression, second wedge Connected in star extends along second valve seat surface opposite with the sphere.
Optionally, first valve seat and second valve seat are equipped with hard seal assembly.
Preferably, the hard seal assembly on first valve seat includes the first flexible graphite sealing ring, the first sealing ring branch Seat and the first disc spring；First flexible graphite sealing ring is arranged between first valve seat and the bottom surface of first groove； The first sealing ring support and first valve seat are clamped, and first flexible graphite sealing ring is located at first sealing ring Between support and first valve seat；First disc spring side with the first sealing ring support and first groove respectively Wall offsets；
Hard seal assembly on second valve seat includes the second flexible graphite sealing ring, the second sealing ring support and second Disc spring；Second flexible graphite sealing ring is arranged between second valve seat and the bottom surface of second groove；Described second Sealing ring support and second valve seat are clamped, and second flexible graphite sealing ring is located at the second sealing ring support and institute It states between the second valve seat；Side wall of second disc spring respectively with the second sealing ring support and second groove offsets.
Optionally, the hydraulic cylinder is equipped with stroke adjustment screw rod, and the stroke adjustment screw rod and the piston rod are same Axis is arranged on the cylinder body, and first end and the piston rod of the stroke adjustment screw rod are located at the intracorporal one end phase of the cylinder It supports, the second end of the stroke adjustment screw rod stretches out the cylinder body.
Optionally, the cabinet is equipped with spacing adjusting rod, and the first end of the spacing adjusting rod is located at the shift fork arm Zone of action in, the second end of the spacing adjusting rod stretches out the cabinet.
Optionally, the shift fork body is equipped with limited block, and the cabinet is equipped with limit switch, and the limit switch is located at In the zone of action of the limited block.
Optionally, the quick action emergency valve further includes control valve group, and the control valve group is connected to the hydraulic cylinder.
Technical solution provided in an embodiment of the present invention has the benefit that
By adding actuator, actuator includes hydraulic cylinder, guide rod, guide pad and shift fork etc., is lived in hydraulic cylinder The flexible of stopper rod drives the guide pad being fixedly connected with piston rod to slide on the guide bar, and the fork being stuck in outside guide pad is driven to turn Dynamic, so that setting be made to rotate with it in the intracorporal driving stem of fork, the sphere that driving stem is fixedly connected is during rotation Realize the opening and closing of ball valve, whole process is hydraulically operated completion, the in emergency circumstances operation in time such as fire can occurring completely Ball valve cuts off the pipeline to hose conveying crude oil.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.
Fig. 1 is a kind of structural schematic diagram of quick action emergency valve provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of ball valve provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of actuator provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of valve seat provided in an embodiment of the present invention；
Fig. 5 is the subregional structural schematic diagram of the first seat portion provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of guide pad stroke adjustment provided in an embodiment of the present invention part；
Fig. 7 is the structural schematic diagram of spacing adjusting rod provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of shift fork provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
The embodiment of the invention provides a kind of quick action emergency valve, Fig. 1 is a kind of emergency cut-off provided in an embodiment of the present invention The structural schematic diagram of valve, referring to Fig. 1, which includes ball valve 10 and actuator 20.
In the present embodiment, Fig. 2 is the structural schematic diagram of ball valve provided in an embodiment of the present invention, referring to Fig. 1 and Fig. 2, ball Valve 10 includes valve body 11, sphere 12, the first valve seat 13, the second valve seat 14, the first valve deck 15, the second valve deck 16 and driving stem 17.Valve body 11 is cylindrical body, and the first valve deck 15 is fixed on the first bottom surface of valve body 11, close to valve body 11 in the first valve deck 15 Region is equipped with the first groove 100, and the first valve seat 13 is arranged in the first groove 100.Second valve deck 16 is fixed on the of valve body 11 On two bottom surfaces, it is equipped with the second groove 200 close to the region of valve body 11 in the second valve deck 16, valve body 11 is arranged in the second groove 200 It is interior.Sphere 12 is located in valve body 11, and is folded between the first valve seat 13 and the second valve seat 14.The first end of driving stem 17 is solid It is scheduled on sphere 12 and the axis of driving stem 17 passes through the centre of sphere of sphere 12, the second end of driving stem 17 is from the side of valve body 11 Valve body 11 is stretched out in face.
Fig. 3 is the structural schematic diagram of actuator provided in an embodiment of the present invention, and referring to Fig. 1 and Fig. 3, actuator 20 includes case Body 21, hydraulic cylinder 22, guide rod 23, guide pad 24 and shift fork 25.Hydraulic cylinder 22 includes cylinder body 221 and piston rod 222, cylinder Body 221 is fixed on cabinet 21, and piston rod 222 extends into cabinet 21.Guide rod 23 is fixed in cabinet 21, guide rod 23 Axis is parallel with the axis of piston rod 222.Guide pad 24 is slidably disposed on guide rod 23, and fixed with piston rod 222 Connection.Shift fork 25 includes shift fork body 251 and shift fork arm 252, and shift fork arm 252 clamps guide pad 24, and shift fork body 251 is equipped with installation Hole 300, shift fork body 251 are set in outside driving stem 17 by mounting hole 300, the axis of driving stem 17 and the axis of guide rod 23 Line is vertical.
The working principle of quick action emergency valve provided in an embodiment of the present invention is simply introduced below with reference to Fig. 1:
Change the volume of 221 inner fluid of cylinder body of hydraulic cylinder 22, it can be with the flexible of piston rod 222.When piston rod 222 is stretched When contracting, the guide pad 24 being fixedly connected with piston rod 222 is movable on guide rod 23 therewith, drives the shift fork for clamping guide pad 24 Arm 252 moves.Since the shift fork body 251 in shift fork 25 is fixedly connected with shift fork arm 252, shift fork body 251 passes through 300 sets of mounting hole Be located at outside driving stem 17, thus shift fork arm 252 move when, shift fork arm 252 and driving stem 17 rotate together, so drive with The sphere 12 that driving stem 17 is fixedly connected, completes the opening and closing of ball valve.
For the embodiment of the present invention by adding actuator, actuator includes hydraulic cylinder, guide rod, guide pad and shift fork etc., The flexible of piston rod drives the guide pad being fixedly connected with piston rod to slide on the guide bar in hydraulic cylinder, and drive is stuck in guiding Fork rotation outside block, thus rotate with it setting in the intracorporal driving stem of fork, the sphere that driving stem is fixedly connected The opening and closing of ball valve is realized during rotation, and whole process is hydraulically operated completion, the urgent feelings such as fire can occurring completely Ball valve is operated under condition in time, cuts off the pipeline to hose conveying crude oil.
It should be noted that " first " and " second " in the present embodiment is only used for indicating identical two components of type.
In addition, in the concrete realization, one of the first valve deck 15 and the second valve deck 16 is connected to by hose with FPSO, first Another of valve deck 15 and the second valve deck 16 are connected to by hose with shuttle tanker.It can pass through between ball valve 10 and actuator 20 Flat key or fastener connection.It can be connected by pin shaft between shift fork arm 252 and guide pad 24.In actuator 20 each component it Between can be connected through a screw thread.
In practical applications, as shown in Fig. 2, ball valve 10 can also include stuffing box 18, support valve rod 191 and third valve deck 192.Stuffing box 18 is arranged between driving stem 17 and valve body 11.Support first end and the driving stem 17 of valve rod 191 coaxial It is fixed on sphere 12, the second end of support valve rod 191 is rotatably arranged in third valve deck 192, and third valve deck 192 is fixed On the side of valve body 11.
By setting stuffing box, support valve rod and third valve deck, the fixation of sphere in the vertical direction is on the one hand realized, separately On the one hand guarantee the leakproofness of valve body.
Fig. 4 is the structural schematic diagram of valve seat provided in an embodiment of the present invention, referring to fig. 4, optionally, the first valve seat 13 and the Two valve seats 14 surface 400 opposite with sphere 12 can be formed using hard sealing material.
The valve seat surface opposite with sphere is formed using hard sealing material, is no more than leakage rate between valve body and valve seat 3.6Ml/min.And while guaranteeing that valve seat has certain leakproofness, enhances the durability of valve seat, avoid frequently replacing valve Seat.
Fig. 5 is the subregional structural schematic diagram of the first seat portion provided in an embodiment of the present invention, referring to Fig. 5, it is preferable that the One valve seat 13 surface opposite with sphere 12 can be equipped with third groove 500, be equipped with the first soft seal ring in third groove 500 31。
Correspondingly, the second valve seat 14 surface opposite with sphere 12 can be equipped with the 4th groove, and the is equipped in the 4th groove Two soft seal rings.
Using hard sealing surface, increases soft seal ring, the leakproofness of valve body can be effectively ensured.
It is highly preferred that first wedge shape is recessed as shown in figure 5, can be equipped with the first wedge-shaped impression 31a in the first soft seal ring 31 Slot 31a extends along the first valve seat 13 surface opposite with sphere 12.
Correspondingly, can be equipped with the second wedge-shaped impression in the second soft seal ring, the second wedge-shaped impression along the second valve seat 14 with The opposite surface of sphere 12 extends.
By opening up wedge-shaped impression in soft seal ring, wedge-shaped impression extends along the valve seat surface opposite with sphere, just In normal situation, sphere and its connected region internal pressure are smaller, and soft seal ring can be moved along the valve seat surface opposite with sphere To between valve seat and sphere, it is ensured that the leakproofness of sphere and its connected region.And fire etc. in emergency circumstances, sphere and its company Logical region internal pressure increases, and soft seal ring can be moved to third groove or the 4th recessed along the valve seat surface opposite with sphere In slot, realizes releasing pressure automatically, avoid hypertonia in sphere and its connected region and cause damage parts.
Optionally, hard seal assembly is also provided on the first valve seat 13 and the second valve seat 14.
Increase hard seal assembly, enhances the leakproofness in other regions of the valve seat in addition to the key area opposite with sphere.
Preferably, as shown in Fig. 2, the hard seal assembly on the first valve seat 13 may include the first flexible graphite sealing ring 33, the first sealing ring support 34 and the first disc spring 35.The first valve seat 13 and the first groove is arranged in first flexible graphite sealing ring 33 Between 100 bottom surface.First sealing ring support 34 and the first valve seat 13 are clamped, and it is close that the first flexible graphite sealing ring 33 is located at first Between seal ring support 34 and the first valve seat 13.First disc spring 35 side with the first sealing ring support 34 and the first groove 100 respectively Wall offsets.
Correspondingly, the hard seal assembly on the second valve seat include the second flexible graphite sealing ring, the second sealing ring support and Second disc spring.Second flexible graphite sealing ring is arranged between the second valve seat 14 and the bottom surface of the second groove.Second sealing ring support It is clamped with the second valve seat 14, the second flexible graphite sealing ring is between the second sealing ring support and the second valve seat 14.Second dish Side wall of the spring respectively with the second sealing ring support and the second groove offsets.
Flexible graphite sealing ring is stuck between valve seat and valve deck using sealing ring support and disc spring, reinforces the sealing of valve seat Property.And formed using sealing ring using soft graphite, good airproof performance is durable.
Optionally, as shown in figure 3, stroke adjustment screw rod 223, stroke adjustment screw rod 223 can be equipped on hydraulic cylinder 22 It is co-axially located on cylinder body 221 with piston rod 222, the first end and piston rod 222 of stroke adjustment screw rod 223 are located at cylinder body 221 Interior one end offsets, and the second end of stroke adjustment screw rod 223 stretches out cylinder body 221.
Fig. 6 is the structural schematic diagram of guide pad stroke adjustment provided in an embodiment of the present invention part, referring to Fig. 6, adjusts row Journey adjusting screw rod 223 protrudes into the length scale of cylinder body 221, can limit piston rod 222 in cylinder body 221 zone of action it is big It is small, to limit the stroke of piston rod 222, and then sliding area of the guide pad 24 on guide rod 23 is limited, eventually by dialling Fork limits the activity point of view of driving stem.
Optionally, as shown in figure 3, spacing adjusting rod 26, the first end position of spacing adjusting rod 26 can be equipped on cabinet 21 In in the zone of action of shift fork arm 252, the second end of spacing adjusting rod 26 stretches out cabinet 21.
Fig. 7 is the structural schematic diagram of spacing adjusting rod provided in an embodiment of the present invention, referring to Fig. 7 and Fig. 6, spacing adjusting rod 26 is similar with stroke adjustment screw rod 223, adjusts the length scale that spacing adjusting rod 26 protrudes into cabinet 21, can limit guide pad 24 Sliding area on guide rod 23 limits the activity point of view of driving stem eventually by shift fork.
By the way that spacing adjusting rod to be arranged in the zone of action of shift fork arm, the rotational angle of shift fork can be limited, finally Limit the activity point of view of driving stem.
Optionally, Fig. 8 is that the structural schematic diagram of shift fork provided in an embodiment of the present invention can on shift fork body 251 referring to Fig. 8 To be equipped with limited block 251a, as shown in figure 3, can be equipped with limit switch 27 on cabinet 21, limit switch 27 is located at limited block In the zone of action of 251a.
When position where limited block is moved to limit switch, limit switch can inform control system or work in time Make personnel, to understand the position of shift fork in time, perform corresponding processing, such as determines the state of ball valve, stopping movement.
Optionally, as shown in Figure 1, the quick action emergency valve can also include control valve group 40, control valve group 40 and hydraulic oil Cylinder 22 is connected to.
Specifically, control valve group 40 may include accumulator.When there are the emergencies such as fire, accumulator can be timely Hydraulic-driven emergency cut-off valve events are provided.
Further, control valve group 40 can also include hand pump.If accumulator breaks down or is short of power, hand Shaking pump can meet an urgent need, it is ensured that the movement of quick action emergency valve can be completed.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of quick action emergency valve, the quick action emergency valve includes ball valve (10), and the ball valve (10) includes valve body (11), sphere (12), the first valve seat (13), the second valve seat (14), the first valve deck (15), the second valve deck (16) and driving stem (17)；The valve Body (11) is cylindrical body, and first valve deck (15) is fixed on the first bottom surface of the valve body (11), first valve deck (15) region in close to the valve body (11) is equipped with the first groove (100), and first valve seat (13) is arranged described first In groove (100)；Second valve deck (16) is fixed on the second bottom surface of the valve body (11), in second valve deck (16) Region close to the valve body (11) is equipped with the second groove (200), and second valve seat (14) is arranged in second groove (200) in；The sphere (12) is located in the valve body (11), and is folded in first valve seat (13) and second valve seat (14) between；The first end of the driving stem (17) is fixed on the sphere (12) and the axis of the driving stem (17) By the centre of sphere of the sphere (12), the second end of the driving stem (17) stretches out the valve from the side of the valve body (11) Body (11)；
It is characterized in that, the quick action emergency valve further includes actuator (20), the actuator (20) includes cabinet (21), hydraulic Oil cylinder (22), guide rod (23), guide pad (24) and shift fork (25)；The hydraulic cylinder (22) includes cylinder body (221) and piston Bar (222), the cylinder body (221) are fixed on the cabinet (21), and the piston rod (222) is prolonged into the cabinet (21) It stretches；The guide rod (23) is fixed in the cabinet (21), axis and the piston rod (222) of the guide rod (23) Axis is parallel；The guide pad (24) is slidably disposed on the guide rod (23), and fixed with the piston rod (222) Connection；The shift fork (25) includes shift fork body (251) and shift fork arm (252), and the shift fork arm (252) clamps the guide pad (24), the shift fork body (251) is equipped with mounting hole (300), and the shift fork body (251) is arranged by the mounting hole (300) The driving stem (17) outside, the axis of the driving stem (17) is vertical with the axis of the guide rod (23).
2. quick action emergency valve according to claim 1, which is characterized in that first valve seat (13) and second valve seat (14) surface (400) opposite with the sphere (12) is formed using hard sealing material.
3. quick action emergency valve according to claim 2, which is characterized in that first valve seat (13) and the sphere (12) Opposite surface is equipped with third groove (500), is equipped with the first soft seal ring (31) in the third groove (500)；Described second Valve seat (14) and the sphere (12) opposite surface are equipped with the 4th groove, are equipped with the second soft seal ring in the 4th groove.
4. quick action emergency valve according to claim 3, which is characterized in that first soft seal ring (31) is equipped with first Wedge-shaped impression (31a), first wedge-shaped impression (31a) is along first valve seat (13) and the sphere (12) opposite surface Extend；Second soft seal ring be equipped with the second wedge-shaped impression, second wedge-shaped impression along second valve seat (14) with The opposite surface of the sphere (12) extends.
5. described in any item quick action emergency valves according to claim 1~3, which is characterized in that first valve seat (13) and institute The second valve seat (14) are stated equipped with hard seal assembly.
6. quick action emergency valve according to claim 5, which is characterized in that the hard seal assembly on first valve seat (13) Including the first flexible graphite sealing ring (33), the first sealing ring support (34) and the first disc spring (35)；First soft graphite Sealing ring (33) is arranged between first valve seat (13) and the bottom surface of first groove (100)；The first sealing ring branch Seat (34) and first valve seat (13) are clamped, and first flexible graphite sealing ring (33) is located at the first sealing ring support (34) between first valve seat (13)；First disc spring (35) respectively with the first sealing ring support (34) and described The side wall of first groove (100) offsets；
Hard seal assembly on second valve seat includes the second flexible graphite sealing ring, the second sealing ring support and the second dish Spring；Second flexible graphite sealing ring is arranged between second valve seat (14) and the bottom surface of second groove；Described Two sealing ring supports and second valve seat (14) are clamped, and second flexible graphite sealing ring is located at the second sealing ring branch Between seat and second valve seat (14)；Second disc spring respectively with the second sealing ring support and second groove Side wall offsets.
7. described in any item quick action emergency valves according to claim 1~3, which is characterized in that set on the hydraulic cylinder (22) Have stroke adjustment screw rod (223), the stroke adjustment screw rod (223) and the piston rod (222) are co-axially located at the cylinder body (221) on, first end and the piston rod (222) of the stroke adjustment screw rod (223) are located at one in the cylinder body (221) End offsets, and the second end of the stroke adjustment screw rod (223) stretches out the cylinder body (221).
8. described in any item quick action emergency valves according to claim 1~3, which is characterized in that the cabinet (21) is equipped with limit Position adjusting rod (26), the first end of the spacing adjusting rod (26) are located in the zone of action of the shift fork arm (252), the limit The second end of position adjusting rod (26) stretches out the cabinet (21).
9. described in any item quick action emergency valves according to claim 1~3, which is characterized in that the shift fork body (251) is equipped with Limited block (251a), the cabinet (21) are equipped with limit switch (27), and the limit switch (27) is located at the limited block In the zone of action of (251a).
10. described in any item quick action emergency valves according to claim 1~3, which is characterized in that the quick action emergency valve further includes Control valve group (40), the control valve group (40) are connected to the hydraulic cylinder (22).
CN201810842385.4A 2018-07-27 2018-07-27 Emergency cut-off valve Active CN109027394B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864119A (en) * 2019-10-22 2020-03-06 山东交通学院 Water pressure self-opening type sea valve

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Publication number Priority date Publication date Assignee Title
CN2167248Y (en) * 1993-08-01 1994-06-01 李琯新 Pneumatic "V" shaped adjustable ball valve
CN101694215A (en) * 2009-10-16 2010-04-14 邵建农 Hemispherical control valve of slurry pump
CN203023539U (en) * 2013-01-09 2013-06-26 罗兰自控阀业（上海）有限公司 Floating ball valve
CN104019278A (en) * 2014-05-23 2014-09-03 武汉船用机械有限责任公司 On-line detecting device of emergency shutdown system valve and emergency shutdown system
CN204253916U (en) * 2014-10-24 2015-04-08 浙江伟光泵阀制造有限公司 A kind of Pneumatic lining fluorine emptying ball valve
CN206190954U (en) * 2016-11-01 2017-05-24 北京山河能源技术有限公司 Sealed disk seat of fixed ball ball valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2167248Y (en) * 1993-08-01 1994-06-01 李琯新 Pneumatic "V" shaped adjustable ball valve
CN101694215A (en) * 2009-10-16 2010-04-14 邵建农 Hemispherical control valve of slurry pump
CN203023539U (en) * 2013-01-09 2013-06-26 罗兰自控阀业（上海）有限公司 Floating ball valve
CN104019278A (en) * 2014-05-23 2014-09-03 武汉船用机械有限责任公司 On-line detecting device of emergency shutdown system valve and emergency shutdown system
CN204253916U (en) * 2014-10-24 2015-04-08 浙江伟光泵阀制造有限公司 A kind of Pneumatic lining fluorine emptying ball valve
CN206190954U (en) * 2016-11-01 2017-05-24 北京山河能源技术有限公司 Sealed disk seat of fixed ball ball valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864119A (en) * 2019-10-22 2020-03-06 山东交通学院 Water pressure self-opening type sea valve

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