CN116906615A - Ball valve support and ultralow temperature ball valve thereof - Google Patents
Ball valve support and ultralow temperature ball valve thereof Download PDFInfo
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- CN116906615A CN116906615A CN202311176819.9A CN202311176819A CN116906615A CN 116906615 A CN116906615 A CN 116906615A CN 202311176819 A CN202311176819 A CN 202311176819A CN 116906615 A CN116906615 A CN 116906615A
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- shell
- clamping groove
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- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 230000007306 turnover Effects 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 229920002379 silicone rubber Polymers 0.000 description 10
- 239000004945 silicone rubber Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 description 2
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical group C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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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
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to the field of valves, in particular to a ball valve bracket and an ultralow temperature ball valve thereof, which comprises a shell, wherein the shell comprises a left shell and a right shell which are mutually matched and connected, a first flow hole is formed in the shell, a first clamping groove is formed in one end, close to the right shell, of the left shell, a second clamping groove is formed in one end, close to the left shell, of the right shell, the first clamping groove and the second clamping groove are matched to form a clamping cavity, a first connecting block is embedded in the first clamping groove, a second connecting block is embedded in the second clamping groove, a control turntable is arranged on the shell, and is connected with a rotating connecting rod, so that the technical problems that the surface of the existing ball valve is easy to be impacted by impurities in flowing water flow to generate scratches and surface abrasion, and the sealing performance is reduced along with the increase of service time are solved, and the ball valve can be well applied to a liquid pipeline in an ultralow temperature environment.
Description
Technical Field
The invention relates to the field of valves, in particular to a ball valve bracket and an ultralow-temperature ball valve thereof.
Background
And the opening and closing piece (ball body) is driven by the valve rod and rotates around the axis of the ball valve. The device can also be used for regulating and controlling fluid, wherein the hard seal V-shaped ball valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the flow direction switching of the medium on the pipeline, and simultaneously can close any channel to connect the other two channels. The valve should be installed generally horizontally in the pipeline. The ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve.
The ball valve can be divided into a hard sealing ball valve and a soft sealing ball valve according to materials, wherein the hard sealing ball valve mainly adopts stainless steel, alloy, plastic and the like, and the soft sealing ball valve is generally made of tetrafluoro polyethylene, and the ball valve is widely applied to various industrial fields as common and commonly used pipeline equipment, and the service life of the ball valve is generally calculated in years, so that the ball valve has high requirements on the service life of the ball valve; however, the existing ball valves have some problems, such as difficulty in opening, leakage caused by poor sealing performance, insensitive operation, etc. with the increase of the service time, and meanwhile, the structure and sealing principle of most of the existing valves are difficult to apply in the ultra-low temperature environment, so that it is required to provide an ultra-low temperature ball valve, which is used for adjusting and controlling ultra-low temperature fluid (and/or in the ultra-low temperature environment).
The invention patent with the Chinese patent application number of 202211258434.2 discloses an ultralow temperature ball valve, which comprises a valve body and a ball body, wherein the ball body is arranged in the valve body, the upper end of the ball body is fixedly connected with a driving valve rod, the lower end of the ball body is fixedly connected with a driven valve rod, the driving valve rod and the driven valve rod are both rotationally connected to the valve body, a limiting disc is fixedly connected to the driving valve rod and the driven valve rod, a limiting rod is fixedly connected to the lower side of the limiting disc, limiting seats are arranged on the peripheries of the driving valve rod and the driven valve rod, the limiting seats are fixedly connected to the inner side wall of the valve body, limiting grooves are formed in the limiting seats, and the limiting rods are slidably connected to the limiting grooves. The limiting disc is fixed on the driven valve rod, the limiting rod on the limiting disc and the ball body keep the same motion, the motion range of the limiting rod in the limiting groove of the limiting seat is controlled to ensure that the first through hole of the ball body is in a complete state relative to the sealing or opening state of the second through hole, a limiting component is arranged in the valve body, the problem that the limiting function of the valve can be influenced by low temperature when ultra-low temperature fluid is used is avoided, but impurities in ultra-low temperature fluid flow still can impact the ball body to cause scratches on the surface of the ball body in the water flow state in the use process of the ball valve, and the sealing performance of the ball valve can be reduced after a long time.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a ball valve bracket and an ultra-low temperature ball valve thereof, which solve the technical problems that the surface of the existing ultra-low temperature ball valve is easy to be impacted by impurities in flowing liquid flow to further generate scratches and surface abrasion, and the sealing performance is reduced along with the increase of the service time.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the ball valve bracket comprises a shell, wherein the shell comprises a left shell and a right shell which are mutually matched and connected, a left through and a right through first flow hole are arranged in the shell, a first clamping groove is arranged at one end, close to the right shell, of the left shell, a second clamping groove is arranged at one end, close to the left shell, of the right shell, the first clamping groove and the second clamping groove are matched to form a clamping cavity, a first connecting block is embedded in the first clamping groove, a second connecting block is embedded in the second clamping groove, a first positioning groove and a second positioning groove are arranged on the first clamping groove, a third positioning groove and a fourth positioning groove are arranged on the second clamping groove, the first positioning groove and the third positioning groove are matched to form an upper positioning hole, the second positioning groove and the fourth positioning groove are matched to form a lower positioning hole, the shell is provided with a locating pin and a rotating connecting rod, the locating pin passes through the lower locating hole to enter the clamping cavity, the locating pin is in threaded connection with the lower locating hole, the rotating connecting rod passes through the upper locating hole to enter the clamping cavity, the first clamping groove is internally embedded with at least one first sealing rubber ring, the second clamping groove is internally embedded with at least one second sealing rubber ring, the first clamping groove is internally provided with a first flange, the first flange is provided with a first elastic connecting piece, the first elastic connecting piece is connected with the first clamping groove and the first connecting block, the second clamping groove is internally provided with a second flange, the second flange is provided with a second elastic connecting piece, the second elastic connecting piece is connected with the second clamping groove and the second connecting block, a first waterproof sleeve is arranged between the first connecting block and the left shell in a hot melting mode, and a second waterproof sleeve is arranged between the second connecting block and the right shell in a hot melting mode;
the shell is provided with a control turntable, and the control turntable is connected with the rotating connecting rod and used for controlling the rotation of the rotating connecting rod.
Further, a first drainage protrusion is arranged on the inner circumferential side surface of the left shell close to one side of the first clamping groove, the first drainage protrusion is an annular protrusion, a second drainage protrusion is arranged on the inner circumferential side surface of the right shell close to one side of the second clamping groove, and the second drainage protrusion is an annular protrusion.
Further, the first drainage protrusion is integrally formed in the left shell, the second drainage protrusion is integrally formed in the right shell, the vertical section of the first drainage protrusion is in a half crescent shape, the first drainage protrusion comprises a first drainage surface and a second drainage surface, and the second drainage protrusion and the first drainage protrusion are identical in structure.
Further, the height of the first drainage bulge is 3cm-5cm.
The utility model provides an ultralow temperature ball valve, includes ball valve support and spherical case, the ball valve support with spherical case mutually supporting work, spherical case is arranged in the card is put the cavity, be provided with the second flow hole in the spherical case, spherical case top is provided with first connecting hole, spherical case bottom is provided with the second connecting hole, first connecting hole with rotate connecting rod fixed connection, the downthehole cover of second connecting is equipped with ball bearing, the locating pin passes through ball bearing with second connecting hole rotatable coupling, the cover is equipped with at least one third sealing rubber ring and at least one fourth sealing rubber ring on the spherical case, the third sealing rubber ring with fourth sealing rubber ring quantity is the same, be provided with first arc connecting surface on the first connecting block, be provided with the second arc connecting surface on the second connecting block, first arc connecting surface pass through the third sealing rubber ring with spherical case is connected, the second arc connecting surface passes through the fourth sealing rubber ring with spherical case is rotatable coupling, the spherical case has the spherical outer valve core of ball coating.
Further, the bottom of spherical case is provided with waterproof seal cover through hot melt mode, waterproof seal cover is the upper end throat, the open structure of lower extreme, waterproof seal cover's vertical cross-section is the splayed, waterproof seal cover includes connecting portion and extension, be provided with annular spread groove in the card is put the cavity, annular spread groove encircle set up in lower locating hole edge all around, the vertical cross-section of annular spread groove is semicircle arc structure, waterproof seal cover's extension end with the mutual joint of annular spread groove.
Further, an anti-falling cover plate is arranged on the annular connecting groove, and the anti-falling cover plate is arranged at one end, far away from the lower positioning hole, of the annular connecting groove.
Further, two fluid guiding parts are symmetrically arranged on the spherical valve core, the axis of each fluid guiding part is perpendicular to the axis of each second flow hole, each fluid guiding part comprises a circular arc-shaped fluid guiding groove, a fluid guiding protrusion arranged at the center of each fluid guiding groove and a fluid guiding plate arranged at the periphery of each fluid guiding groove, and each fluid guiding plate extends outwards to a position which is one third to one half of the depth of each fluid guiding groove along the arc direction of the cambered surface of each fluid guiding groove.
Further, when the spherical valve core is in a closed state, an overlapping area exists between the fluid guide plate and the first drainage protrusion in the axial direction of the first flow hole, and the width range of the overlapping area is 2cm-5cm.
Further, a turnover part is arranged at the tail end of the free end of the fluid guide plate, and the turnover part turns over along the direction of the spherical valve core.
By adopting the technical scheme, the invention has the beneficial effects that:
1. compared with the existing ball valve bracket, the technical scheme provided by the invention has the following differences: the conventional ball valve bracket basically does not have a clamping groove, only adopts a left shell and a right shell to stabilize the valve core, and has the defects that a sealing mode adopting hard sealing has the technical problem of poor sealing performance; the ball valve is also provided with the clamping groove and then the connecting block to fix the valve core, but the connecting block is fixedly connected with the clamping groove, so that the sealing performance of the improved ball valve is improved, but if the ball valve is used for a long time, the valve core can be worn along with continuous impact of water flow in a pipeline to cause surface abrasion, so that the connection tightness with the connecting block is reduced, and the sealing performance is reduced; the first connecting block and the second connecting block are respectively and movably connected with the first clamping groove and the second clamping groove in an embedding way, a first elastic connecting piece is arranged between the first connecting block and the first clamping groove, a second elastic connecting piece is arranged between the second connecting block and the second clamping groove, the first connecting block and the second connecting block can be ensured to always keep a force like the movement of the center position of the shell under the action of the first elastic connecting piece and the second elastic connecting piece, and then the first connecting block and the second connecting block can always bear force to abut against the valve core, so that the tightness matched with the valve core is improved, the tightness is improved, and the thrust to the center of the shell is provided, so that the connecting block can be tightly attached to the valve core even if the surface of the valve core is worn; through being provided with first waterproof cover and the waterproof cover of second, both adopt the hot melt mode to set up, the effect lies in having guaranteed the leakproofness between connecting block and the draw-in groove, avoid the liquid in the pipeline to get into the draw-in groove, thereby the working property to the elastic connection spare leads to the fact the influence, be provided with locating hole and locating hole down respectively through upper end and the lower tip at the casing, wherein the locating pin adopts the connected mode of spiro union to match and get into the draw-in cavity and fix a position the case under with locating hole cooperation, the leakproofness has been guaranteed to the connected mode of spiro union, thereby the rotation connecting rod passes through upper locating hole downwardly extending gets into the draw-in cavity and cooperates with the case and mutually support with the control carousel realization is opened and is closed to the case.
2. Through being provided with first drainage arch on the interior circumference side of left casing, be provided with the second drainage arch on the interior circumference side of right casing, wherein first drainage arch is the same with the bellied structure of second drainage, both are vertical cross-section and are half crescent annular arch, and half crescent direction of buckling all points to the case, first drainage arch includes first drainage face and second drainage face, first drainage face is the convex surface, the second drainage face is the concave surface, the drainage effect of first drainage face when flowing through ball valve department of liquid in the pipeline can be guaranteed to structural design like this, the central axis direction of pipeline can be guided to the impact force of rivers, the solid residue that has carried in the rivers has been avoided leading to the fact the injury and then produces the risk of cutting open both waterproof cover to first waterproof cover and second under the drive of rivers.
3. The invention also provides an ultralow-temperature ball valve, which comprises a ball valve bracket and a spherical valve core which are mutually matched for use, wherein the spherical valve core is provided with a first connecting hole and a second connecting hole which are respectively matched with a locating pin and a rotating connecting rod in a clamping way from the top and the bottom, and the matching tightness between the locating pin and the spherical valve core and the second connecting block is improved by arranging a third sealing rubber ring and a fourth sealing rubber ring on two sides of the spherical valve core, which are positioned on the second flowing hole, meanwhile, the spherical valve core is covered with a tetrafluoro polyethylene coating, soft sealing is realized by the tetrafluoro polyethylene coating, the spherical valve core is mutually matched with the third sealing rubber ring and the fourth sealing rubber ring, so that the tight waterproof sealing of the valve is realized, and the positioning pin and the spherical valve core are ensured to realize smooth rotatable connection by arranging a roller bearing in the second connecting hole in a sleeved way.
4. The waterproof sealing sleeve is arranged at the bottom of the spherical valve core in a hot melting mode, the waterproof sealing sleeve adopts a structure with an upper end necking and a lower end opening, the vertical section of the waterproof sealing sleeve is splayed, meanwhile, an annular connecting groove is arranged in a clamping cavity, and the annular connecting groove and the waterproof sealing sleeve are mutually matched and connected in the using process, the design of the structure is that the spherical valve core is used in the using process, the using time is continuously prolonged, the using frequency and the using times are continuously increased, although the sealing performance between the spherical valve core and the spherical valve core can be improved through the first connecting block and the second connecting block, the lifting is mainly reflected in the sealing and static state of the spherical valve core, and the pipeline and the valve core can vibrate due to liquid circulation in the pipeline and the impact generated on the inner side wall of the pipeline, the spherical valve core and the like in the rotating and opening and closing process of the spherical valve core, the connecting block and the valve core can generate a fine gap in the vibration process, at the moment, liquid can enter the cavity around the locating pin through the gap, and the ball bearing is adopted between the locating pin and the second locating hole for rolling connection, so that the ball bearing is easy to wet and rust so as to influence the rolling smoothness, the joint of the locating pin and the second locating hole is waterproof treated by adopting the annular waterproof groove and the waterproof sealing sleeve, the condition that the ball bearing rusts to influence the operation is avoided, the waterproof sealing sleeve is arranged into a splayed structure, the structure has the advantages that when the accumulated water is continuously increased in the joint, the gravity generated by the accumulated water can act on the extending part of the waterproof sealing sleeve, and the connection tightness of the waterproof sealing sleeve and the annular connecting groove can be directly improved so as to ensure that the waterproof sealing sleeve has better waterproof sealing performance, in other words, the more accumulated water generated at the position, the greater the work stability of the waterproof sealing sleeve is improved, and meanwhile, the structure of the waterproof sealing sleeve is designed by referring to the structure of the upper and lower width of the dam, so that the stability of the bottom of the waterproof sealing sleeve matched with the annular connecting groove is ensured.
5. Through being provided with anti-drop apron on annular spread groove, anti-drop apron can form semi-closed track jointly with annular spread groove, further avoids waterproof seal cover to drop from annular spread groove.
6. Through being provided with two fluid guide portions on spherical case symmetry, fluid guide portion's effect lies in promoting spherical case and closes the in-process itself to the shock resistance of rivers, fluid guide portion includes semicircle arc fluid guide slot, set up in fluid guide slot central point put the fluid guide bulge and set up in fluid guide slot circumference end along fluid guide plate, wherein fluid guide bulge in the fluid guide slot is as the place that liquid impact force is biggest in the pipeline, it adopts convex bulge can cushion the effect to liquid and reduces the vibration that liquid impacted spherical case brought, liquid impact fluid guide bulge back can be dispersed to the circumference by its drainage pressure, and then be continued to drain to fluid guide plate and then flow to pipeline inside wall under the effect of fluid guide plate, and the rivers after the pressure reduction have not had impact force and dispersed to the circumference, the junction that causes the impact to connecting block and spherical case junction has been avoided leading to the junction to the wearing and tearing and influence the leakproofness.
7. When the spherical valve core is in a closed state, the fluid guide plate and the first drainage bulge are in an overlapping area in the axial direction of the first flow hole, so that the fluid guide plate can flow along the extending direction of the fluid guide plate after being drained by the fluid guide plate, and then can be contacted with a second drainage surface on the first drainage bulge, the second drainage surface is a concave surface, liquid can flow back at the position, and further is accumulated at the joint of the connecting block and the spherical valve core in an extremely gentle state, and the joint of the connecting block and the spherical valve core is not impacted by liquid in a pipeline due to the structural design.
8. Through being provided with the turn-over part at the free end of fluid deflector, the turn-over direction of turn-over part is for turning over to spherical case department turns over, and such structural design is that can accomplish better and cooperate with the second drainage face on the first drainage arch, plays more mild drainage effect to the intraductal liquid, accomplishes the comprehensive protection to spherical case.
9. Meanwhile, all flexible parts such as a first sealing rubber ring, a second sealing rubber ring, a first waterproof sleeve, a second waterproof sleeve, a third sealing rubber ring, a fourth sealing rubber ring and a waterproof sealing sleeve are all made of low-temperature resistant rubber, the low-temperature resistant rubber is also called low-temperature resistant silicone rubber, the low-temperature resistant silicone rubber is silicone rubber with the working temperature of-100 ℃, the mechanism is different from room-temperature silicone rubber, and the flexible parts are obtained by introducing methyl phenyl silicone chain links or diphenyl silicone chain links into a molecular chain of methyl vinyl silicone rubber, and the flexible parts have the advantages that: small compression set, wide use temperature range, oxidation resistance, weather resistance, shock resistance, moisture resistance, good electrical insulation performance, low temperature resistance, ablation resistance, irradiation resistance and the like. The ball valve can adapt to the ultra-low temperature use environment.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the front structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is an enlarged view of FIG. 2 at A;
FIG. 5 is an enlarged view at B in FIG. 2;
FIG. 6 is an enlarged view at C in FIG. 2;
FIG. 7 is an enlarged view of FIG. 2 at D;
FIG. 8 is a schematic perspective view of a first connecting block according to the present invention;
FIG. 9 is a schematic view of the internal structure of the ball valve core according to the present invention;
FIG. 10 is a block diagram of a second drainage protrusion and fluid deflector according to the present invention.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-10, the invention provides a ball valve bracket, which comprises a housing 1, wherein the housing 1 comprises a left housing 11 and a right housing 12 which are mutually matched and connected, a first through hole 13 which is penetrated left and right is arranged in the housing 1, the first through hole 13 penetrates through the left housing 11 and the right housing 12, a first clamping groove 14 is arranged at one end of the left housing 11, which is close to the right housing 12, a second clamping groove 15 is arranged at one end of the right housing 12, which is close to the left housing 11, the first clamping groove 14 and the second clamping groove 15 are matched to form a clamping cavity, a first connecting block 5 is embedded in the first clamping groove 14, a second connecting block 6 is embedded in the second clamping groove 15, a first positioning groove 16 and a second positioning groove 18 are arranged on the first clamping groove 14, a third positioning groove 17 and a fourth positioning groove 19 are arranged on the second clamping groove 15, the first positioning groove 16 and the third positioning groove 17 are matched to form an upper positioning hole, the second positioning groove 15 and the fourth positioning groove 19 are matched to form a lower positioning hole, the shell 1 is provided with a positioning pin 4 and a rotating connecting rod 2, the positioning pin 4 passes through the lower positioning hole to enter the clamping cavity, the positioning pin 4 and the lower positioning hole are in threaded connection, the rotating connecting rod 2 passes through the upper positioning hole to enter the clamping cavity, the first clamping groove 14 is internally embedded with two first sealing rubber rings 141, the second clamping groove 15 is internally embedded with two second sealing rubber rings 151, the first clamping groove 14 is internally provided with a first flange 142, the first flange 142 is provided with a first elastic connecting piece 143, the first elastic connecting piece 143 is connected with the first clamping groove 14 and the first connecting block 5, a second flange 152 is arranged in the second clamping groove 15, a second elastic connecting piece 153 is arranged on the second flange 152, the second elastic connecting piece 153 connects the second clamping groove 15 and the second connecting block 6, a first waterproof sleeve 144 is arranged between the first connecting block 5 and the left shell 11 in a hot melting manner, and a second waterproof sleeve 154 is arranged between the second connecting block 6 and the right shell 12 in a hot melting manner; the first elastic connecting piece 143 and the second elastic connecting piece 153 have the same structure and both adopt high-strength springs, the internal structure of the first clamping groove 14 and the internal structure of the second clamping groove 15 are the same, and the connection mode of the first clamping groove 14 and the first connecting block 5 is the same as the connection mode of the second clamping groove 15 and the second connecting block 6, so that only the connection structure of the second clamping groove 15 and the second connecting block 6 is enlarged in the drawing, referring to fig. 4;
the shell 1 is provided with a control turntable 3, the control turntable 3 is connected with the rotary connecting rod 2 and is used for controlling the rotary connecting rod 2 to rotate, and the structure and the connection form of the control turntable 3 are known in the valve field and the known operation principle and are not repeated here;
a first drainage protrusion 7 is arranged on one side, close to the first clamping groove 14, of the inner circumferential side surface of the left shell 11, the first drainage protrusion 7 is an annular protrusion, a second drainage protrusion 8 is arranged on one side, close to the second clamping groove 15, of the inner circumferential side surface of the right shell 12, the second drainage protrusion 8 is an annular protrusion, the first drainage protrusion 7 is integrally formed in the left shell 11, the second drainage protrusion 8 is integrally formed in the right shell 12, the vertical section of the first flow protrusion 7 is in a half crescent shape, the vertical section of the first flow protrusion comprises a first flow guiding surface and a second flow guiding surface, the second flow guiding protrusion 8 is identical to the first flow guiding protrusion 7 in structure and also comprises a first flow guiding surface 82 and a second flow guiding surface 81, the height of the first flow guiding protrusion 7 and the height of the second flow guiding protrusion 8 are 5cm, and the height of the first flow guiding protrusion and the height of the second flow guiding protrusion 8 can be adjusted within the range of 3cm-5cm in the actual production process, such as 3cm or 4cm.
The invention also provides an ultralow-temperature ball valve applying the ball valve bracket, which comprises the following concrete steps:
the ultra-low temperature ball valve comprises a ball valve support and a ball valve core 9, wherein the ball valve support and the ball valve core 9 are matched with each other to work, the ball valve core 9 is arranged in a clamping cavity, a second flow hole 96 is formed in the ball valve core 9, a first connecting hole 95 is formed in the top of the ball valve core 9, a second connecting hole 94 is formed in the bottom of the ball valve core 9, the first connecting hole 95 is fixedly connected with the rotary connecting rod 2, a ball bearing 92 is sleeved in the second connecting hole 94, the positioning pin 4 is rotatably connected with the second connecting hole 94 through the ball bearing 92, two third sealing rubber rings 97 and two fourth sealing rubber rings 98 are sleeved on the ball valve core 9, the third sealing rubber rings 97 and the fourth sealing rubber rings 98 are respectively positioned on the left side and the right side of the ball valve core 9, the left reference and the right reference of the ball valve core 9 refer to fig. 9, a first arc-shaped connecting surface 51 is arranged on the first connecting block 5, a second connecting surface 61 is arranged on the second connecting block 6, the first arc-shaped connecting surface is connected with the fourth sealing rubber rings 97, the arc-shaped spherical valve core 9 is coated with the fourth sealing rubber rings, the fourth sealing rubber rings 98 are coated with the arc-shaped surface, and the ball valve core 9 is coated with the outer surface of the ball valve core 9, and the ball valve core 9 can be coated with a spherical valve core 9, and the arc-shaped valve core 9, and the fourth sealing rings are coated with a high-shaped surface, and the fourth sealing layer, and the fourth sealing rubber ring and the ball valve core 9 coating layer;
the bottom of the spherical valve core 9 is provided with a waterproof sealing sleeve 93 in a hot melting mode, the waterproof sealing sleeve 93 is in a structure with a contracted upper end and an open lower end, the vertical section of the waterproof sealing sleeve 93 is splayed, the waterproof sealing sleeve 93 comprises a connecting part 931 and an extending part 932, an annular connecting groove 111 is arranged in the clamping cavity, the annular connecting groove 111 is arranged around the periphery of the lower positioning hole, the vertical section of the annular connecting groove 111 is in a semicircular arc structure, and the tail end of the extending part 932 of the waterproof sealing sleeve 93 is mutually clamped with the annular connecting groove 111; the annular connecting groove 111 is provided with an anti-falling cover plate 112, and the anti-falling cover plate 112 is arranged at one end of the annular connecting groove 111 far away from the lower positioning hole.
Two fluid guiding portions 91 are symmetrically arranged on the spherical valve core 9, the axes of the two fluid guiding portions 91 are perpendicular to the axis of the second flow hole 96, the fluid guiding portions 91 comprise circular arc-shaped fluid guiding grooves 912, fluid guiding protrusions 913 arranged at the center positions of the fluid guiding grooves 912 and fluid guiding plates 911 arranged at the periphery ends of the fluid guiding grooves 912, the fluid guiding plates 911 extend outwards to a height which is one third of the depth of the fluid guiding grooves 912 along the arc direction of the cambered surfaces of the fluid guiding grooves 912, when the spherical valve core 9 is in a closed state, an overlapping area exists between the fluid guiding plates 911 and the first drainage protrusions 7 in the axis direction of the first flow hole 13, the width range of the overlapping area is 2cm, the other ends of the overlapping area and the second drainage protrusions 8 in the axis direction of the first flow hole 13 are overlapped, the width range of the overlapping area is 2cm, and particularly referring to fig. 10, the free end tail ends of the fluid guiding plates 911 are provided with folding portions 9111, and the folding portions 919 are folded along the direction of the spherical valve core 9.
All flexible parts such as the first sealing rubber ring 141, the second sealing rubber ring 151, the first waterproof jacket 144, the second waterproof jacket 154, the third sealing rubber ring 97, the fourth sealing rubber ring 98 and the waterproof sealing sleeve 93 are all made of low-temperature resistant rubber, the low-temperature resistant rubber is also called low-temperature resistant silicone rubber, the low-temperature resistant silicone rubber refers to silicone rubber with working temperature of minus 100 ℃, the mechanism is different from room-temperature silicone rubber, and the mechanism is obtained by introducing methyl phenyl silicone chain links or diphenyl silicone chain links into a molecular chain of methyl vinyl silicone rubber, and the advantages are that: small compression set, wide use temperature range, oxidation resistance, weather resistance, shock resistance, moisture resistance, good electrical insulation performance, low temperature resistance, ablation resistance, irradiation resistance and the like. The ball valve can adapt to the ultra-low temperature use environment.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a ball valve support, includes casing, its characterized in that: the shell comprises a left shell and a right shell which are connected in a matched manner, a left through-hole and a right through-hole are formed in the shell, a first clamping groove is formed in one end, close to the right shell, of the left shell, a second clamping groove is formed in one end, close to the left shell, of the right shell, the first clamping groove and the second clamping groove are matched to form a clamping cavity, a first connecting block is embedded in the first clamping groove, a second connecting block is embedded in the second clamping groove, a first positioning groove and a second positioning groove are formed in the first clamping groove, a third positioning groove and a fourth positioning groove are formed in the second clamping groove, the first positioning groove and the third positioning groove are matched to form an upper positioning hole, a positioning pin and a rotating connecting rod are arranged on the right shell, the positioning pin penetrates through the lower positioning hole to enter the clamping cavity, a first connecting block and a first connecting flange are arranged in the first connecting flange, a first sealing ring is arranged in the first connecting flange, a second sealing ring is arranged in the first flange, a second flange is arranged in the first flange, and at least one sealing ring is arranged in the first flange, and the sealing ring is arranged in the sealing ring. A second waterproof sleeve is arranged between the second connecting block and the right shell in a hot melting mode;
the shell is provided with a control turntable, and the control turntable is connected with the rotating connecting rod and used for controlling the rotation of the rotating connecting rod.
2. A ball valve holder according to claim 1, wherein: the left side shell is characterized in that a first drainage bulge is arranged on one side, close to the first clamping groove, of the inner circumference side surface of the left side shell, the first drainage bulge is an annular bulge, a second drainage bulge is arranged on one side, close to the second clamping groove, of the inner circumference side surface of the right side shell, and the second drainage bulge is an annular bulge.
3. A ball valve holder according to claim 2, wherein: the first drainage protrusion is integrally formed in the left shell, the second drainage protrusion is integrally formed in the right shell, the vertical section of the first drainage protrusion is in a half crescent shape and comprises a first drainage surface and a second drainage surface, and the second drainage protrusion is identical to the first drainage protrusion in structure.
4. A ball valve holder according to claim 3, wherein: the height of the first drainage bulge is 3cm-5cm.
5. An ultra-low temperature ball valve, including spherical case and a ball valve support of claim 4, the ball valve support with spherical case work of mutually supporting, its characterized in that: the ball valve core is arranged in the clamping cavity, a second flow hole is formed in the ball valve core, a first connecting hole is formed in the top of the ball valve core, a second connecting hole is formed in the bottom of the ball valve core, the first connecting hole is fixedly connected with the rotary connecting rod, a ball bearing is sleeved in the second connecting hole, the positioning pin is rotatably connected with the second connecting hole through the ball bearing, at least one third sealing rubber ring and at least one fourth sealing rubber ring are sleeved on the ball valve core, the number of the third sealing rubber rings and the number of the fourth sealing rubber rings are the same, a first arc connecting surface is arranged on the first connecting block, a second arc connecting surface is arranged on the second connecting block, the first arc connecting surface is connected with the ball valve core through the third sealing rubber ring, the second arc connecting surface is connected with the ball valve core through the fourth sealing rubber ring, and the ball valve core is externally covered with a tetrafluoro polyethylene coating.
6. The ultra-low temperature ball valve according to claim 5, wherein: the bottom of spherical case is provided with waterproof seal cover through the hot melt mode, waterproof seal cover is the open structure of upper end throat, the vertical cross-section of waterproof seal cover is the splayed, waterproof seal cover includes connecting portion and extension, be provided with annular spread groove in the card is put the cavity, annular spread groove encircle set up in lower locating hole edge all around, the vertical cross-section of annular spread groove is semicircle arc structure, waterproof seal cover's extension end with the mutual joint of annular spread groove.
7. The ultra-low temperature ball valve according to claim 6, wherein: the annular connecting groove is provided with an anti-falling cover plate, and the anti-falling cover plate is arranged at one end, far away from the lower positioning hole, of the annular connecting groove.
8. The ultra-low temperature ball valve according to claim 7, wherein: the spherical valve core is symmetrically provided with two fluid guide parts, the axis of each fluid guide part is mutually perpendicular to the axis of each second flow hole, each fluid guide part comprises a circular arc-shaped fluid guide groove, a fluid guide bulge arranged at the center of each fluid guide groove and a fluid guide plate arranged at the periphery of each fluid guide groove, and each fluid guide plate extends outwards to a height which is one third to one half of the depth of each fluid guide groove along the arc direction of the cambered surface of each fluid guide groove.
9. The ultra-low temperature ball valve according to claim 8, wherein: when the spherical valve core is in a closed state, an overlapping area exists between the fluid guide plate and the first drainage bulge in the axial direction of the first flow hole, and the width range of the overlapping area is 2cm-5cm.
10. The ultra-low temperature ball valve according to claim 9, wherein: the free end tail end of the fluid guide plate is provided with a turnover part, and the turnover part turns over along the direction of the spherical valve core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311176819.9A CN116906615B (en) | 2023-09-13 | 2023-09-13 | Ball valve support and ultralow temperature ball valve thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311176819.9A CN116906615B (en) | 2023-09-13 | 2023-09-13 | Ball valve support and ultralow temperature ball valve thereof |
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| CN116906615A true CN116906615A (en) | 2023-10-20 |
| CN116906615B CN116906615B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311176819.9A Active CN116906615B (en) | 2023-09-13 | 2023-09-13 | Ball valve support and ultralow temperature ball valve thereof |
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| CN211975943U (en) * | 2019-12-31 | 2020-11-20 | 上海桥诗阀门制造有限公司 | Leakage-proof two-piece ball valve |
| CN212899849U (en) * | 2020-08-03 | 2021-04-06 | 杭州辉利科技有限公司 | High-temperature-resistant heat-preservation carbon steel ball valve |
| CN216279508U (en) * | 2021-11-05 | 2022-04-12 | 南方阀门科技有限公司 | Integral wear-resisting metal seal ball valve |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6880804B1 (en) * | 1999-10-15 | 2005-04-19 | John Caleb Wells Biggers | Valve sealing means |
| CN102278491A (en) * | 2010-06-10 | 2011-12-14 | 沃泰阀门(昆山)有限公司 | Soft and hard dual-seal fixed ball valve |
| CN108087618A (en) * | 2016-11-21 | 2018-05-29 | 浙江三花汽车零部件有限公司 | A kind of heating power expansion valve |
| CN210218759U (en) * | 2019-05-29 | 2020-03-31 | 浙江成达特种阀门厂 | Ball valve special for coal chemical industry |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116906615B (en) | 2023-12-01 |
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