CN115355326A - Small-aperture underwater rotary plate valve - Google Patents
Small-aperture underwater rotary plate valve Download PDFInfo
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- CN115355326A CN115355326A CN202211276105.0A CN202211276105A CN115355326A CN 115355326 A CN115355326 A CN 115355326A CN 202211276105 A CN202211276105 A CN 202211276105A CN 115355326 A CN115355326 A CN 115355326A
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- 239000007788 liquid Substances 0.000 claims abstract description 78
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 46
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 241000191291 Abies alba Species 0.000 description 7
- 235000004507 Abies alba Nutrition 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000003245 working effect 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
- 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
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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
- 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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Abstract
The invention discloses a rotary plate valve under Kong Jingshui, which relates to the technical field of valves and comprises a valve seat, a valve cover and a connecting device, wherein the connecting device is fixed at the upper end of the valve cover; a valve cavity is arranged in the valve cover, a liquid inlet channel and a liquid outlet channel are arranged in the valve seat, and the liquid inlet channel and the liquid outlet channel are both communicated with the valve cavity; the connecting device and the valve cover are connected with a valve rod in a rotating mode, the upper end of the valve rod can be in transmission connection with an output shaft of the remote control unmanned submersible through the connecting device, the lower end of the valve rod is provided with two spring fixing holes and two liquid passing holes, a spring body is arranged in each spring fixing hole, a sliding through hole is formed in the hole opening of each spring fixing hole, a valve plate is connected in the sliding through hole in a sliding mode, and one end of each spring body is abutted to the valve plate. The valve plate can be controlled to control the opening and closing of the liquid inlet channel and the liquid outlet channel through the rotation of the valve rod, and the valve plate is labor-saving to use.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a rotary plate valve under a small Kong Jingshui.
Background
In the existing hydraulic control system for the subsea Christmas tree, each Christmas tree needs 6 to 12 or more valves according to different subsea Christmas tree arrangements, and the demand of products is large.
However, most of valves in existing underwater Christmas trees adopt needle valves or gate valves, but in the actual use process of existing cone valves or gate valves, the required rotation angle is large during opening and closing, the required torque is large, impurities are easily accumulated, and therefore the service life of the whole valve is shortened.
Therefore, a small-aperture underwater rotary plate valve is urgently needed in the market for solving the problems.
Disclosure of Invention
The invention aims to provide a small-aperture underwater rotary plate valve which is used for solving the technical problems in the prior art, realizes that a valve plate is utilized to control the circulation of a liquid inlet channel and a liquid outlet channel through the rotation of a valve rod, has smaller integral required torque and smaller rotation angle of the valve rod, and is not easy to cause impurity blockage by utilizing the rotation of the valve plate.
In order to achieve the purpose, the invention provides the following scheme:
the invention discloses a rotary plate valve under Kong Jingshui, which comprises a valve seat, a valve cover and a connecting device, wherein the connecting device is fixed at the upper end of the valve cover, the valve seat is fixed at the lower end of the valve cover, and the connecting device is used for being in transmission connection with a remote control unmanned submersible;
a valve cavity is arranged in the valve cover, a liquid inlet channel and a liquid outlet channel are arranged in the valve seat, and the liquid inlet channel and the liquid outlet channel are both communicated with the valve cavity;
the connecting device with the valve gap internal rotation is connected with the valve rod, the upper end of valve rod is passed through connecting device can be connected with the output shaft transmission of remote control unmanned submersible, the lower extreme of valve rod is equipped with two spring fixed orificess and two and crosses the liquid hole, every be equipped with a spring body in the spring fixed orificess, the drill way department of spring fixed orificess is equipped with sliding through hole, sliding through hole sliding connection has the valve plate, the one end of spring body with the valve plate offsets, two the valve plate can be used for respectively plugging up feed liquor passageway with liquid outlet channel's one end, feed liquor passageway's the other end is used for connecting the hydraulic pressure source, liquid outlet channel's the other end is used for connecting the production tree, feed liquor passageway with liquid outlet channel can be respectively through one cross the liquid hole with the valve pocket is linked together.
Preferably, the connecting device is including connecting fixed block, go-between and turning block, the lower extreme of connecting the fixed block is fixed in the upper end of valve gap, the go-between is fixed in connect the upper end of fixed block, it is equipped with the rotation spread groove to connect the fixed block, be equipped with the rotation connecting hole on the go-between, the transmission block rotate connect in rotate the spread groove with in rotating the connecting hole, the turning block is used for connecting with the output transmission of remote control unmanned underwater vehicle, the center of turning block with the upper end fixed connection of valve rod.
Preferably, the rotary connecting hole is a circular through hole, the rotary connecting groove is a circular groove, the rotary block is a rectangular block, and the cross-sectional areas of the rotary connecting hole and the rotary connecting groove are the same;
a brass gasket is fixed at the bottom of the rotary connecting groove, and the rotary block is rotatably connected to the Huang Tongdian sheet.
Preferably, be equipped with first passageway on connecting the fixed block, the valve rod passes first passageway, be equipped with in the first passageway from top to bottom and strengthen sealing washer and first self-lubricating axle sleeve, the valve rod passes strengthen the sealing washer with the inner circle of first self-lubricating axle sleeve.
Preferably, a connecting O-shaped sealing ring is arranged between the connecting fixing block and the valve cover;
and a metal steel ring is arranged between the valve cover and the valve seat and is made of nickel-based alloy.
Preferably, a second channel is arranged in the valve cover, a thrust washer and a rod sealing assembly are arranged in the second channel from top to bottom, and the valve rod penetrates through the thrust washer and an inner ring of the rod sealing assembly.
Preferably, the rod seal assembly comprises a flood plug seal ring, a support ring and a plurality of V-shaped seal rings, the plurality of V-shaped seal rings being disposed between the flood plug seal ring and the support ring, the support ring being closer to the thrust washer than the flood plug seal ring;
the support ring is made of polyether-ether-ketone.
Preferably, a limiting bulge is arranged on the valve rod and is positioned in the valve cavity, and a composite gasket is arranged between the upper surface of the limiting bulge and the top of the valve cavity;
the composite gasket is of a double-layer structure, the upper layer of the composite gasket is made of nickel-based alloy, and the lower layer of the composite gasket is made of polytetrafluoroethylene.
Preferably, a second self-lubricating shaft sleeve is sleeved on the outer side of the lower end of the valve rod;
the second self-lubricating shaft sleeve is of a double-layer structure, the outer layer of the second self-lubricating shaft sleeve is made of nickel-based alloy, and the inner layer of the second self-lubricating shaft sleeve is made of polytetrafluoroethylene.
Preferably, the contact surface of the valve plate and the valve cavity is subjected to supersonic thermal spraying tungsten carbide treatment.
Compared with the prior art, the invention has the following technical effects:
the valve plate can be driven to move by the rotation of the valve rod, so that the flow of the liquid inlet channel and the liquid outlet channel can be controlled, the whole structure is simple to operate, the liquid inlet channel and the liquid outlet channel can be opened by only rotating the valve rod by 90 degrees, the opening torque is less than 50NXM under the pressure difference of 70Mpa, the labor-saving effect is achieved, in addition, because the valve plate does planar rotation movement, the valve plate can remove surface impurities in the rotation process, and the problem of impurity accumulation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a small-bore underwater rotary plate valve according to an embodiment of the present invention;
FIG. 2 is a side view of a valve stem in a small bore underwater rotary plate valve in accordance with an embodiment of the present invention;
FIG. 3 is a top view of a valve stem in a small bore underwater rotary plate valve in accordance with an embodiment of the present invention;
in the figure: 1-a valve seat; 2-valve cover; 3-connecting a fixed block; 4-connecting rings; 5-turning the block; 6-valve stem; 7-valve cavity; 8-a spring body; 9-a valve plate; 10-reinforcing the sealing ring; 11-a thrust washer; 12-connecting an O-ring; 13-a rod seal assembly; 14-a first self-lubricating sleeve; 15-a second self-lubricating shaft sleeve; 16-a metal steel ring; 17-a liquid inlet channel; 18-a liquid outlet channel; 19-a composite shim; 20-brass shims; 21-liquid passing holes; 100-small Kong Jingshui lower rotary plate valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a small-aperture underwater rotary plate valve which is used for solving the technical problems in the prior art, the circulation of a liquid inlet channel and a liquid outlet channel is controlled by a valve plate through the rotation of a valve rod, the integral required torque is small, the rotation angle of the valve rod is small, and the blockage of impurities is not easily caused by the rotation of the valve plate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-3, the invention provides a small Kong Jingshui lower rotary plate valve 100, which comprises a valve seat 1, a valve cover 2 and a connecting device, wherein the valve seat 1, the valve cover 2 and the connecting device are sequentially fixed through bolts from bottom to top, the connecting device is fixed at the upper end of the valve cover 2, the valve seat 1 is fixed at the lower end of the valve cover 2, a positioning pin is arranged between the valve seat 1 and the valve cover 2 to realize the quick positioning effect of the valve seat 1 and the valve cover 2, and the connecting device is used for being in transmission connection with a remote control unmanned submersible;
a valve cavity 7 is arranged in the valve cover 2, a liquid inlet channel 17 and a liquid outlet channel 18 are arranged in the valve seat 1, the liquid inlet channel 17 and the liquid outlet channel 18 are both communicated with the valve cavity 7, and one ends of the liquid inlet channel 17 and the liquid outlet channel 18, which are positioned at the valve cavity 7, are symmetrically distributed around the center of the bottom of the valve cavity 7;
the connecting device and the valve cover 2 are rotatably connected with a valve rod 6, the connecting device and the valve cover 2 are internally provided with corresponding channels through which the valve rod 6 passes, the upper end of the valve rod 6 can be in transmission connection with an output shaft of a remote-control unmanned submersible vehicle (ROV) through the connecting device, namely, one output end of the remote-control unmanned submersible vehicle can drive the valve rod 6 to rotate through the connecting device, the lower end of the valve rod 6 is provided with two spring fixing holes and two liquid passing holes 21, wherein the two spring fixing holes and the two liquid passing holes 21 are distributed in a staggered manner along the circumferential direction of the bottom of the valve rod 6, namely, a connecting line between the two spring fixing holes is vertical to a connecting line between the two liquid passing holes 21, the two spring fixing holes are symmetrically distributed about the center of the bottom of the valve rod 6, each spring fixing hole is internally provided with a spring body 8, the orifice of each spring fixing hole is provided with a sliding through hole, as shown in figure 1, the sliding through hole is positioned at the lower end of the spring fixing hole, the cross section size of the sliding through hole is larger than that of the spring fixing hole, and the spring fixing hole and the sliding through hole form a common counter bore structure. A valve plate 9 is connected in the sliding through hole in a sliding mode, the two valve plates 9 can be used for blocking one end of the liquid inlet channel 17 and one end of the liquid outlet channel 18 respectively, the other end of the liquid inlet channel 17 is used for being connected with a hydraulic source, the hydraulic source can be a hydraulic oil source or a chemical reagent source selected according to actual conditions, the other end of the liquid outlet channel 18 is used for being connected with a Christmas tree, and when the valve rod 6 is rotated, the liquid inlet channel 17 and the liquid outlet channel 18 can be communicated with the valve cavity 7 through a liquid passing hole 21 respectively.
In practical use, if liquid needs to be conveyed to a Christmas tree, liquid in the liquid inlet channel 17 can provide a thrust force for a valve above the liquid inlet channel, the pressure between the valve plate 9 and the liquid inlet channel 17 is reduced, the valve plate 9 can rotate conveniently, the valve rod 6 is controlled to rotate through a remote-control unmanned submersible vehicle (ROV), then the valve rod 6 only needs to rotate 90 degrees, at the moment, one ends of the liquid inlet channel 17 and the liquid outlet channel 18, which are located in the valve cavity 7, can be respectively communicated with the liquid passing hole 21, and therefore the liquid inlet channel 17 and the liquid outlet channel 18 are communicated with the valve cavity 7. Fluid will flow from the source into the valve chamber 7 and from the valve chamber 7 through the outlet passage 18 to the christmas tree. If the valve needs to be closed, the two valve plates 9 can block the ports of the liquid inlet channel 17 and the liquid outlet channel 18 again only by rotating the control valve rod 6 by 90 degrees through a Remote Operated Vehicle (ROV), so that the liquid supply is stopped.
The spring body 8 has the function that when the valve plate 9 covers the ports of the inlet channel 17 and the outlet channel 18, the spring body 8 is in a compressed state, so that the spring body can generate a downward pressure on the valve plate 9, and the two valve plates 9 can be firmly pressed at the ports of the inlet channel 17 and the outlet channel 18. When liquid needs to be introduced, the liquid from the liquid inlet channel 17 can give an upward thrust to the valve plate 9 above the liquid inlet channel, so that the friction force between the valve plate 9 and the port of the liquid inlet channel 17 is reduced, the torsion is reduced, and the valve rod 6 is convenient to rotate.
The inner diameters of the liquid inlet channel 17 and the liquid outlet channel 18 in the embodiment are both smaller than 1 inch (25 mm), so that the valve is a valve with small aperture and is suitable for the working environment of pipelines with small aperture.
In this embodiment, connecting device is including connecting fixed block 3, go-between 4 and turning block 5, and the lower extreme of connecting fixed block 3 passes through the bolt fastening in the upper end of valve gap 2, and go-between 4 passes through the screw fastening in the upper end of connecting fixed block 3, evenly is provided with a plurality of screw holes on the circumferential direction of go-between 4, and it is fixed to be convenient for. Connect fixed block 3 and be equipped with the rotation spread groove, be equipped with the rotation connecting hole on the go-between 4, the lower half of transmission block can rotate to be connected in rotating the spread groove and rotating the connecting hole, and turning block 5 is used for being connected with the output transmission of remote control unmanned submersible, and screw fixed connection is passed through with the upper end of valve rod 6 in the center of turning block 5, can drive valve rod 6 synchronous rotation when turning block 5 rotates.
In this embodiment, the rotation connecting hole is a circular through hole, the rotation connecting groove is a circular groove, the rotation block 5 is a rectangular block, the cross-sectional areas of the rotation connecting hole and the rotation connecting groove are the same, the cross section of the rotation block 5 is a rectangle, the cross sections of the rotation connecting hole and the rotation connecting groove are circular, and the diameter of the circular cross-sectional areas of the rotation connecting hole and the rotation connecting groove is greater than the length of the diagonal line of the rectangular cross-sectional area of the rotation block 5, so that it can be ensured that the rotation connecting hole and the rotation connecting groove cannot block the rotation of the rotation block 5;
the output end of the remote-control unmanned submersible vehicle (ROV) is an output rotating shaft, a rotating groove is fixed on the output rotating shaft and is used for being fixedly connected with a rotating block 5, so that the technical effect of driving a valve rod 6 to rotate is realized, and the part of the structure is a low-torsion tool in the existing remote-control unmanned submersible vehicle (ROV);
the tank bottom of rotating the spread groove is fixed with brass gasket 20, and turning block 5 rotates to be connected on brass gasket 20, and brass gasket 20 has wear-resisting advantage, avoids turning block 5 or rotates the fixed block and is worn and torn, needs to be clear that, the lower extreme of structure turning block 5 only contacts with brass gasket 20, does not contact with the rotation spread groove.
In this embodiment, connect the center department on the fixed block 3 and be equipped with first passageway, valve rod 6 passes first passageway, is equipped with in the first passageway from top to bottom and strengthens sealing washer 10 and first self-lubricating axle sleeve 14, and valve rod 6 passes the inner circle of strengthening sealing washer 10 and first self-lubricating axle sleeve 14. Wherein the function of the reinforced sealing ring 10 is to improve the sealing performance and prevent seawater from entering. The first self-lubricating sleeve 14 is used for righting the valve rod 6, so that the valve rod 6 is in a stable state. The outer rings of the two are fixed on the inner wall of the first channel, and the outer side wall of the valve rod 6 can rotate relative to the inner rings of the two.
In this embodiment, a connecting O-ring 12 is disposed between the connecting fixing block 3 and the valve cover 2, and is used to ensure the sealing property between the connecting fixing block 3 and the valve cover 2 and prevent seawater from entering;
a metal steel ring 16 is arranged between the valve cover 2 and the valve seat 1, and the material of the metal steel ring 16 is 625 nickel-based alloy, which has the function of preventing liquid in the valve cavity 7 from flowing outwards.
In this embodiment, a second channel is arranged in the valve cover 2, the second channel and the first channel are coaxially arranged and are communicated with each other, a thrust washer 11 and a rod sealing assembly 13 are arranged in the second channel from top to bottom, and the valve rod 6 penetrates through inner rings of the thrust washer 11 and the rod sealing assembly 13. Wherein, thrust washer 11 sets up in the upper end of second passageway, and the upper surface of thrust washer 11 contacts with the lower surface of connecting fixed block 3, and thrust washer 11 mainly plays the technological effect of rightting valve rod 6. The rod seal assembly 13 acts as a seal, primarily to prevent the upward flow of liquid from the valve chamber 7.
In this embodiment, as for the specific structure of the rod sealing assembly 13, the rod sealing assembly 13 includes a flooding plug sealing ring, a supporting ring and a plurality of V-shaped sealing rings, the plurality of V-shaped sealing rings are disposed between the flooding plug sealing ring and the supporting ring, wherein the V-shaped sealing rings are of a V-shaped sealing ring structure with an inverted cross section, two adjacent V-shaped sealing rings are mutually matched and stacked through the upper tip portion and the lower recess portion of the upper end, and the two adjacent V-shaped sealing rings are tightly matched, so that the overall sealing performance can be further improved, and the supporting ring is closer to the thrust washer 11 than the flooding plug sealing ring;
it can be understood that the flooding plug sealing ring is positioned at the lowermost end, and the supporting ring is positioned at the uppermost end;
it can be known that the flood plug sealing ring is a high-performance sealing element with a special spring in a U-shaped Teflon, the sealing lip (surface) is ejected out by adding a proper spring force and system fluid pressure to lightly press a sealed metal surface to generate a very excellent sealing effect, and the actuating effect of the spring can overcome the slight eccentricity of a metal matching surface and the abrasion of the sealing lip, so that the expected sealing performance is continuously kept;
the lower extreme of lock ring is equipped with V-arrangement recess for with the pointed end portion cooperation of the V-arrangement sealing washer that is located the superiors, the material of lock ring is non-metallic material, specifically is polyether ether ketone (peek) material.
In this embodiment, the valve rod 6 is provided with a limiting protrusion, the limiting protrusion and the valve rod 6 are coaxially arranged, the limiting protrusion is of a cylindrical structure, and the limiting protrusion is located in the valve cavity 7 to play a limiting role. A composite gasket 19 is arranged between the upper surface of the limiting bulge and the top of the valve cavity 7, and the composite gasket 19 has a wear-resistant effect and prevents the valve rod 6 from being worn;
for the structure of the composite gasket 19, the composite gasket 19 has a double-layer structure, the upper layer of the composite gasket 19 is made of 625 nickel-based alloy, and the lower layer of the composite gasket 19 is made of polytetrafluoroethylene (pdfe).
In this embodiment, the outer side of the lower end of the valve rod 6 is sleeved with a second self-lubricating shaft sleeve 15, which mainly functions to centralize the valve rod 6 and keep the valve rod in a vertical state all the time;
second self-lubricating axle sleeve 15 is bilayer structure, and the outer material of second self-lubricating axle sleeve 15 is 625 nickel base alloy, and the inlayer material of second self-lubricating axle sleeve 15 is polytetrafluoroethylene (pdfe), and this material makes it have wear-resisting technological effect.
In this embodiment, the contact surface between the valve plate 9 and the valve cavity 7 is treated by the supersonic thermal spraying tungsten carbide to enhance the wear resistance and the sealing performance between the valve plate 9 and the valve cavity 7, so as to prevent the liquid leakage when the valve plate 9 blocks the liquid inlet channel 17 and the liquid outlet channel 18.
The invention can be used for ensuring the whole sealing performance of the small-aperture underwater rotary plate valve 100 by the sealing structures such as the reinforced sealing ring 10, the connecting O-shaped sealing ring 12, the metal steel ring 16, the rod sealing component 13 and the like, and can prevent seawater from entering and liquid from leaking. The first self-lubricating shaft sleeve 14, the second self-lubricating shaft sleeve 15 and the thrust gasket can be used for righting and guiding the valve rod 6, so that the position of the valve rod 6 in the valve cavity 7 is kept stable. Therefore, the valve can still maintain stable and reliable sealing capability in water accompanied with high pressure through the actions of the parts.
Furthermore, the pressure grade of the small-aperture underwater rotary plate valve 100 is 10000 PSI, the applicable water depth can reach 2000 m, and due to the fact that the small-aperture underwater rotary plate valve needs to act in various complex environments, PTFE materials are added to all parts on the small-aperture underwater rotary plate valve 100 under the small Kong Jingshui, and friction is reduced. The switching operation of the rotary plate valve 100 under the small Kong Jingshui is simple and convenient, the small-aperture underwater rotary plate valve 100 can be opened only by rotating for 1/4 circle, and the required torque is less than 100 NxM, so that the rotary plate valve 100 under the small Kong Jingshui in a complex situation is simple and easy to operate, meanwhile, the service life of the rotary plate valve 100 under the small Kong Jingshui is prolonged due to the addition of PTFE materials, the fatigue strength is improved, and 600 times of high endurance cycles can be endured. Under the guiding and righting effects of the first self-lubricating shaft sleeve 14, the second self-lubricating shaft sleeve 15, the rod sealing assembly 13 and the thrust washer 11, even after the valve is opened and closed for many times, abrasion of all parts can be in a normal range, and normal effects of the small-aperture underwater rotary plate valve 100 are guaranteed.
Because of the operation of small aperture rotary plate valve 100 under water for a long time, so its design adopts FF level's material specification in API6A, and key parts such as valve rod 6, disk seat 1, turning block 5 all adopt stainless steel, even contact on-the-spot corrosive fluid, outstanding material also can guarantee that working property does not reduce.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a small aperture is rotary plate valve under water which characterized in that: the remote control unmanned submersible vehicle comprises a valve seat, a valve cover and a connecting device, wherein the connecting device is fixed at the upper end of the valve cover, the valve seat is fixed at the lower end of the valve cover, and the connecting device is used for being in transmission connection with the remote control unmanned submersible vehicle;
a valve cavity is arranged in the valve cover, a liquid inlet channel and a liquid outlet channel are arranged in the valve seat, and the liquid inlet channel and the liquid outlet channel are communicated with the valve cavity;
the connecting device with the valve gap internal rotation is connected with the valve rod, the upper end of valve rod is passed through connecting device can be connected with the output shaft transmission of remote control unmanned submersible, the lower extreme of valve rod is equipped with two spring fixed orificess and two and crosses the liquid hole, every be equipped with a spring body in the spring fixed orificess, the drill way department of spring fixed orificess is equipped with sliding through hole, sliding through hole sliding connection has the valve plate, the one end of spring body with the valve plate offsets, two the valve plate can be used for respectively plugging up feed liquor passageway with liquid outlet channel's one end, feed liquor passageway's the other end is used for connecting the hydraulic pressure source, liquid outlet channel's the other end is used for connecting the production tree, feed liquor passageway with liquid outlet channel can be respectively through one cross the liquid hole with the valve pocket is linked together.
2. A small Kong Jingshui lower rotary plate valve as in claim 1 wherein: the connecting device comprises a connecting fixing block, a connecting ring and a rotating block, the lower end of the connecting fixing block is fixed at the upper end of the valve cover, the connecting ring is fixed at the upper end of the connecting fixing block, the connecting fixing block is provided with a rotating connecting groove, a rotating connecting hole is formed in the connecting ring, the transmission block is rotatably connected with the rotating connecting groove and in the rotating connecting hole, the rotating block is used for being in transmission connection with the output end of the remote control unmanned submersible, and the center of the rotating block is fixedly connected with the upper end of the valve rod.
3. A small aperture underwater rotary plate valve as claimed in claim 2, in which: the rotary connecting hole is a circular through hole, the rotary connecting groove is a circular groove, the rotary block is a rectangular block, and the cross-sectional areas of the rotary connecting hole and the rotary connecting groove are the same;
a brass gasket is fixed at the bottom of the rotary connecting groove, and the rotary block is rotatably connected to the Huang Tongdian sheet.
4. The small bore underwater rotary plate valve of claim 2, characterized in that: connect to be equipped with first passageway on the fixed block, the valve rod passes first passageway, be equipped with in the first passageway from top to bottom and strengthen sealing washer and first self-lubricating axle sleeve, the valve rod passes strengthen the sealing washer with the inner circle of first self-lubricating axle sleeve.
5. The small bore underwater rotary plate valve of claim 2, characterized in that: a connecting O-shaped sealing ring is arranged between the connecting fixing block and the valve cover;
and a metal steel ring is arranged between the valve cover and the valve seat, and the metal steel ring is made of nickel-based alloy.
6. A small Kong Jingshui lower rotary plate valve as in claim 1 wherein: the valve is characterized in that a second channel is arranged in the valve cover, a thrust washer and a rod sealing assembly are arranged in the second channel from top to bottom, and the valve rod penetrates through the thrust washer and the inner ring of the rod sealing assembly.
7. A rotary plate valve having a small Kong Jingshui as in claim 6 wherein: the rod seal assembly comprises a flood plug seal ring, a support ring and a plurality of V-shaped seal rings, the plurality of V-shaped seal rings are arranged between the flood plug seal ring and the support ring, and the support ring is closer to the thrust washer than the flood plug seal ring;
the support ring is made of polyether-ether-ketone.
8. A small Kong Jingshui lower rotary plate valve as in claim 1 wherein: a limiting bulge is arranged on the valve rod and is positioned in the valve cavity, and a composite gasket is arranged between the upper surface of the limiting bulge and the top of the valve cavity;
the composite gasket is of a double-layer structure, the upper layer of the composite gasket is made of nickel-based alloy, and the lower layer of the composite gasket is made of polytetrafluoroethylene.
9. A small Kong Jingshui lower rotary plate valve as in claim 1 wherein: a second self-lubricating shaft sleeve is sleeved on the outer side of the lower end of the valve rod;
the second self-lubricating shaft sleeve is of a double-layer structure, the outer layer of the second self-lubricating shaft sleeve is made of nickel-based alloy, and the inner layer of the second self-lubricating shaft sleeve is made of polytetrafluoroethylene.
10. A small Kong Jingshui lower rotary plate valve as in claim 1 wherein: and the contact surface of the valve plate and the valve cavity is subjected to supersonic thermal spraying tungsten carbide treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276105.0A CN115355326A (en) | 2022-10-19 | 2022-10-19 | Small-aperture underwater rotary plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211276105.0A CN115355326A (en) | 2022-10-19 | 2022-10-19 | Small-aperture underwater rotary plate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115355326A true CN115355326A (en) | 2022-11-18 |
Family
ID=84008755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211276105.0A Pending CN115355326A (en) | 2022-10-19 | 2022-10-19 | Small-aperture underwater rotary plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115355326A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137340A1 (en) * | 2007-05-01 | 2008-11-13 | Cameron International Corporation | Tubing hanger with integral annulus shutoff valve |
| CN204961856U (en) * | 2015-07-15 | 2016-01-13 | 江苏雄越石油机械设备制造有限公司 | Novel butterfly valve |
| CN211288760U (en) * | 2019-11-26 | 2020-08-18 | 张宝安 | Rust-proof and freeze-proof control valve |
| CN213512251U (en) * | 2020-09-29 | 2021-06-22 | 江苏中特阀门有限公司 | Stop check valve |
| CN214699284U (en) * | 2021-04-29 | 2021-11-12 | 纽威石油设备（苏州）有限公司 | Rotary gate valve |
-
2022
- 2022-10-19 CN CN202211276105.0A patent/CN115355326A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137340A1 (en) * | 2007-05-01 | 2008-11-13 | Cameron International Corporation | Tubing hanger with integral annulus shutoff valve |
| CN204961856U (en) * | 2015-07-15 | 2016-01-13 | 江苏雄越石油机械设备制造有限公司 | Novel butterfly valve |
| CN211288760U (en) * | 2019-11-26 | 2020-08-18 | 张宝安 | Rust-proof and freeze-proof control valve |
| CN213512251U (en) * | 2020-09-29 | 2021-06-22 | 江苏中特阀门有限公司 | Stop check valve |
| CN214699284U (en) * | 2021-04-29 | 2021-11-12 | 纽威石油设备（苏州）有限公司 | Rotary gate valve |
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Application publication date: 20221118 |