CN115574099B - Bellows seal valve of floating rigid support - Google Patents
Bellows seal valve of floating rigid supportInfo
- Publication number
- CN115574099B CN115574099B CN202211183116.4A CN202211183116A CN115574099B CN 115574099 B CN115574099 B CN 115574099B CN 202211183116 A CN202211183116 A CN 202211183116A CN 115574099 B CN115574099 B CN 115574099B
- Authority
- CN
- China
- Prior art keywords
- rigid support
- support ring
- bellows
- valve
- ring assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
本发明涉及一种刚性浮动支撑的波纹管密封阀门，包括阀壳，阀壳内设有阀杆，阀壳内还设有波纹管，波纹管一端与阀壳固定，另一端与阀杆固定，波纹管外周设有内刚性支撑环组件和外刚性支撑环组件，其中内刚性支撑环组件与波纹管波谷及波谷与波峰之间位置的外表面贴合，外刚性支撑环组件位于内刚性支撑环组件外周，外刚性支撑环组件的内环面与波纹管波峰位置的外表面贴合，外刚性支撑环组件和内刚性支撑环组件间隙配合，采用本发明的阀门克服了采用填充物对波纹管进行支撑的缺陷。
This invention relates to a rigidly floating supported bellows-sealed valve, comprising a valve housing, a valve stem disposed within the valve housing, and a bellows disposed within the valve housing. One end of the bellows is fixed to the valve housing, and the other end is fixed to the valve stem. An inner rigid support ring assembly and an outer rigid support ring assembly are disposed around the outer periphery of the bellows. The inner rigid support ring assembly is in contact with the outer surface of the bellows at the troughs and between the troughs and crests. The outer rigid support ring assembly is located around the inner rigid support ring assembly, and the inner ring surface of the outer rigid support ring assembly is in contact with the outer surface of the bellows at the crests. The outer rigid support ring assembly and the inner rigid support ring assembly are in clearance fit. The valve of this invention overcomes the defects of using filler to support the bellows.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a floating rigid support corrugated pipe sealing valve.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The present corrugated pipe sealing valve adopts liquid or gas or solid powdery filler to be filled into the interior or the exterior of a corrugated pipe to realize the support of the corrugated pipe, for example, patent CN114087420A discloses a sealing structure of a valve rod and a valve, an inner cavity of the corrugated pipe is provided with the filler, a method for filling and supporting the filler on one side of the corrugated pipe is adopted to support the corrugated pipe, the problem that the existing corrugated pipe valve cannot be used for a high-pressure fluid system is solved, but the inventor finds that the filler flows along with the expansion and contraction of the corrugated pipe in the opening and closing process of the valve in the mode, if the flow is insufficient, more filler is caused at the part, less filler is arranged at the part, the expansion and contraction deformation of the corrugated pipe is blocked at the part, even the corrugated pipe is collapsed and fails, the supporting effect on the corrugated pipe is reduced at the part with less filler, and the corrugated pipe fails when the medium pressure is high. Simultaneously, along with the opening and closing of the valve, the volume of the filling cavity where the filler is located changes, so that the supporting effect of the filler on the corrugated pipe is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a rigid floating support corrugated pipe sealing valve, and solves the defects of the prior art that a filler is adopted to support the corrugated pipe.
In order to achieve the above purpose, the invention adopts the following technical scheme
In a first aspect, an embodiment of the present invention provides a bellows seal valve with a rigid floating support, including a valve housing, a valve stem disposed in the valve housing, a bellows disposed in the valve housing, one end of the bellows being fixed to the valve housing, the other end being fixed to the valve stem, an inner rigid support ring assembly and an outer rigid support ring assembly disposed on an outer periphery of the bellows, wherein the inner rigid support ring assembly is bonded to an outer surface of a portion between a trough and a crest of the bellows, the outer rigid support ring assembly is disposed on an outer periphery of the inner rigid support ring assembly, an inner annular surface of the outer rigid support ring assembly is bonded to an outer surface of a crest of the bellows, and an outer annular surface of the outer rigid support ring assembly is in clearance fit with the inner rigid support ring assembly.
Optionally, the inner ring surface of the inner rigid support ring assembly is an outer convex surface, and is attached to the outer surface of the corrugated pipe trough position through the outer convex surface.
Optionally, the inner annular surface of the outer rigid support ring assembly is provided with an annular cambered surface groove, and is attached to the outer surface of the corrugated pipe at the crest position through the annular cambered surface groove.
Optionally, the boundary position of the adjacent outer rigid support ring component is staggered with the wave crest position of the corrugated pipe along the axis direction of the corrugated pipe.
In a second aspect, an embodiment of the present invention provides a bellows seal valve with a rigid floating support, including a valve housing, a valve rod disposed in the valve housing, a bellows disposed in the valve housing, one end of the bellows being fixed to the valve housing, the other end of the bellows being fixed to the valve rod, an inner rigid support ring assembly and an outer rigid support ring assembly disposed in the bellows, the outer rigid support ring assembly being bonded to an inner surface of a portion between a peak and a trough of the bellows, an outer annular surface of the inner rigid support ring assembly being bonded to an inner surface of a trough of the bellows, the inner annular surface being bonded to the valve rod, the outer rigid support ring assembly being disposed around the outer rigid support ring and being in clearance fit.
Optionally, the outer ring surface of the outer rigid support ring assembly is an outer convex surface, and is attached to the inner surface of the corrugated pipe at the peak position through the outer convex surface.
Optionally, the outer ring surface of the inner rigid support ring assembly is provided with an annular cambered surface groove, and is attached to the inner surface of the corrugated pipe at the position of the corrugated pipe trough through the annular cambered surface groove.
Optionally, the boundary positions of the adjacent inner rigid support ring assemblies are staggered with the trough positions of the corrugated pipes along the axial direction of the corrugated pipes.
Optionally, the inner rigid support ring assembly is formed by at least one inner rigid support ring, the inner rigid support ring is an annular structure formed by a plurality of first annular blocks along the annular direction, and when the inner rigid support ring assembly is formed by a plurality of inner rigid support rings, the plurality of inner rigid support rings are coaxially sleeved.
Optionally, the outer rigid support ring assembly is formed by at least one outer rigid support ring, the outer rigid support ring is formed by a ring-shaped structure comprising a plurality of second ring blocks along the ring, and when the outer rigid support ring assembly is formed by a plurality of outer rigid support rings, the plurality of outer rigid support rings are coaxially sleeved.
The invention has the beneficial effects that:
1. According to the corrugated pipe sealing valve, the inner rigid support ring assembly and the outer rigid support ring assembly are attached to the corrugated pipe, so that the corrugated pipe can float up and down along with the movement of the valve rod to form a rigid floating support, the corrugated pipe is supported, meanwhile, the inner rigid support ring assembly and the outer rigid support ring assembly are in clearance fit, the flexible radial dimension change requirement of the corrugated pipe can be met, when the valve is opened, the upper rigid support ring assembly and the lower rigid support ring assembly are attached to each other, the corrugated pipe is supported, the bearing capacity of the valve is improved, the rigid support ring assembly is utilized for supporting the corrugated pipe, filler is not adopted, the flowing problem of filler does not exist, the rigid floating support cannot be influenced by the volume change of a filling cavity, and the corrugated pipe can be better supported.
2. According to the corrugated pipe sealing valve, the inner rigid support ring and the outer rigid support ring are formed by the plurality of ring blocks, so that floating of the inner rigid support ring assembly and the outer rigid support ring assembly when the corrugated pipe stretches and contracts to generate radial deformation is met, and movement of the corrugated pipe is prevented from being interfered.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a front view showing the overall structure of embodiment 1 of the present invention;
FIG. 2 is a front view showing the overall structure of embodiment 2 of the present invention;
the valve comprises a valve rod, a valve cover, a corrugated pipe, an inner rigid support ring, an outer rigid support ring, a valve body, a second medium circulation port, a valve core, a valve seat, a first medium circulation port and a medium.
Detailed Description
For convenience of description, the words "upper" and "lower" in the present invention, if they mean only the directions of the words corresponding to the upper and lower directions of the drawings, are not limited to the directions, but are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
The embodiment provides a bellows seal valve of floating rigid support, as shown in fig. 1, including the valve casing, be provided with valve rod 1 in the valve casing, valve rod 1 can follow self axis direction motion, and in this embodiment, the valve casing includes valve body 6 and valve gap 2, and valve gap 2 sets up at the open end of valve body 6 so that valve body 6 and valve gap 2 constitute a closed cavity.
Specifically, the end portion of the valve cover 2, which is used for connecting the valve body 6, is provided with an annular positioning block, correspondingly, the end portion of the valve body 6, which is used for connecting the valve cover 2, is provided with an annular positioning groove matched with the positioning block, the positioning block of the valve cover 2 is inserted into the positioning groove of the valve body 6, and the end face of the valve cover 2, which is not provided with the positioning block, is welded or bonded and fixed with the valve body 6.
In other embodiments, the bonnet 2 and the valve body 6 may be removably and fixedly coupled using flanges and bolts.
The valve rod 1 penetrates through the valve cover and stretches into the valve body 6, and the valve rod 1 is slidably connected with the valve cover 2 and can move along the axis direction of the valve rod.
A bellows 3 is arranged between the valve housing and the valve rod 1, in this embodiment, the bellows 3 is arranged between the valve cover 2 and the valve rod 1, the top end of the bellows 3 is fixed with the valve rod 1, and the bottom end of the bellows 3 is fixed with the valve cover 2.
In other embodiments, the top end of the bellows 3 may be fixed to the valve cover 2, and the bottom end of the bellows 3 may be fixed to the valve stem 1.
The bellows 3 is welded or bonded or other sealing connection with the valve rod 1 and the valve cover 2, and the fixing mode can be selected by those skilled in the art according to actual needs.
In this embodiment, the valve body 6 is internally provided with the valve seat 9, and the valve seat 9 separates the valve casing inner space into first space and second space, and wherein bellows 3 is located first space, and the lower extreme of valve rod 1 stretches into in the second space through the trompil on the valve seat, and the lower extreme of valve rod is provided with case 8.
The valve core 8 adopts a conical structure or a spherical structure or a hemispherical structure or other shaped structures, and correspondingly, the opening is matched with the shape of the valve core 8, so that the valve core 8 can seal the opening.
The side part of the valve body 6 corresponding to the first space is provided with a first medium circulation port 10 for medium 11 to flow into the valve body 6 or flow out of the valve body 6, and the side part of the valve body corresponding to the second space is provided with a second medium circulation port 7 for medium 11 to flow into the valve body 6 or flow out of the valve body 6.
The outer periphery of the corrugated pipe 3 is sleeved with an inner rigid support ring assembly, the outer periphery of the inner rigid support ring assembly is sleeved with an outer rigid support ring assembly, in this embodiment, the inner rigid support ring assembly is an inner rigid support ring 4, the outer rigid support ring assembly is an outer rigid support ring 5, the outer periphery of the corrugated pipe 3 is sleeved with the inner rigid support ring 4 and the outer rigid support ring 5, and the outer rigid support ring 5 is located at the outer periphery of the inner rigid support ring 4.
Along the axis of the bellows 3, a plurality of inner rigid support rings 4 and outer rigid support rings 5 are provided.
The inner rigid support ring 4 and the outer rigid support ring 5 are made of metal materials, and in this embodiment, the inner rigid support ring 4 and the outer rigid support ring 5 are made of the same material as the bellows 3.
In other embodiments, the inner rigid support ring 4 and the outer rigid support ring 5 may be made of a metal material having a modulus similar to that of the bellows 3.
The inner ring surface of the inner rigid support ring 4 is an outer convex surface matched with the wave trough shape of the corrugated pipe 3, the outer surface part of the inner rigid support ring 4 passing through the outer convex surface and the wave trough position of the corrugated pipe 3 is jointed, the outer surface between the upper surface of the inner rigid support ring 4 and the wave trough and the wave crest above the wave trough is jointed, and the outer surface between the lower surface of the inner rigid support ring 4 and the wave trough and the wave crest below the wave trough is jointed.
In this embodiment, the inner rigid support ring 4 is provided on the outer periphery of all the trough positions of the bellows 3, and in other embodiments, the inner rigid support ring 4 is provided on the outer periphery of the optionally set partial trough positions.
The outer periphery of the inner rigid support ring is provided with an outer rigid support ring 5, the inner annular surface of the outer rigid support ring 5 is provided with an annular cambered surface groove matched with the wave crest shape of the corrugated pipe 3, the shape of the cambered surface groove is matched with the wave crest shape, the outer rigid support ring 5 is attached to the outer surface of the wave crest position of the corrugated pipe 3 through the cambered surface groove, the outer annular surface of the outer rigid support ring 5 is attached to the inner surface of the valve cover 2, and the valve cover 2 is utilized to play a role in guiding and bearing together.
In this embodiment, all wave crest positions of the corrugated tube 3 are provided with an outer rigid support ring 5 attached to the corrugated tube, and in other embodiments, the outer rigid support ring 5 can be arranged at the set wave crest positions.
The inner diameter of the outer rigid support ring 5 is larger than the outer diameter of the inner rigid support ring 4, so that the inner annular surface of the outer rigid support ring 5 is in clearance fit with the outer annular surface of the inner rigid support ring 4, and the distance between the inner annular surface and the outer annular surface meets the requirement of radial dimension change when the corrugated pipe stretches.
Preferably, the boundary position of the adjacent outer rigid support rings 5 is staggered from the peak position of the corrugated tube 3.
The inner rigid support ring 4 is formed by a plurality of first ring blocks along the circumferential direction, the plurality of first ring blocks are assembled into an annular structure, the number of the first ring blocks is two or three or four or more, and in the embodiment, the number of the first ring blocks is four.
The outer rigid support ring 5 is formed by a plurality of second ring blocks along the circumferential direction, the plurality of second ring blocks are assembled into an annular structure, and the number of the second ring blocks is two or three or four or more, in this embodiment, the number of the second ring blocks is two.
The inner rigid support ring 4 and the outer rigid support ring 5 are formed by a plurality of ring blocks, so that the floating requirement of the inner rigid support ring 4 and the outer rigid support ring 5 when the corrugated pipe generates radial deformation when the valve rod 1 moves up and down is met.
The bottommost outer rigid support ring 5 supports by utilizing the connection part of the bottom end of the corrugated pipe 3 and the valve cover 2, so that all the outer rigid support rings 5 are supported, the inner annular surface of the topmost outer rigid support ring 5 is provided with a convex part, and the convex part is attached to the end surface of the top end of the corrugated pipe 3.
The working method of the valve in the embodiment is as follows:
When the valve is closed, the valve core 8 is tightly attached to the valve seat 9 to seal the opening on the valve seat 9, the corrugated pipe 3 is in the maximum stretching state, at the moment, a gap is reserved between the adjacent outer rigid support rings 5, the inner rigid support ring 4 is attached to the outer rigid support rings 5, the valve core 8 is separated from the valve seat 9 along with the opening of the valve, the opening on the valve group is opened, the valve rod 1 moves downwards, the valve rod 1 drives the corrugated pipe 3 to move downwards to compress, the stretching amount of the corrugated pipe 3 is gradually reduced to a natural state or a compressed state, at the moment, the adjacent outer rigid support rings 5 are attached to each other, no gap exists, the inner rigid support rings 4 are in clearance fit with the outer rigid support rings 5, and the outer rigid support rings 5 are attached to the valve cover 2. At this time, the inner rigid support ring 4 and the outer rigid support ring 5 are attached to the bellows 3, and support the bellows 3, thereby receiving pressure from the fluid medium.
In the valve of this embodiment, in the valve opening and closing process, the inner rigid support ring 4 and the outer rigid support ring 5 can do certain amplitude of floating movement along the axis direction of the bellows 3 along with the movement of the valve rod 1, the inner rigid support ring 4 and the outer rigid support ring 5 cannot limit the axial displacement of the bellows 3, smooth opening adjustment of the valve is ensured, gaps reserved between the inner rigid support ring 4 and the outer rigid support ring 5 need to be calculated according to the opening of the valve and the machining precision of the bellows 3, the inner rigid support ring 4 and the outer rigid support ring 5, how large the gaps are reserved, the bellows 3 generates radial displacement when bearing larger internal pressure, the inner rigid support ring 4 and the outer rigid support ring 5 cannot effectively support the bellows 3, and too small gaps can cause the bellows 3 to be limited by the outer rigid support ring 5 and the inner rigid support ring 4 when generating axial displacement, so that the opening adjustment of the valve is indirectly affected.
By adopting the valve of the embodiment, the corrugated pipe 3 is supported by the inner rigid support ring 4 and the outer rigid support ring 5, no filler is adopted, the problem of flow of the filler does not exist, the rigid floating support is not influenced by the volume change of the filling cavity, and the support effect can be better provided for the corrugated pipe.
Example 2
The present embodiment provides a bellows seal valve with a floating rigid support, as shown in fig. 2, comprising a valve housing, the valve housing comprising a valve body 6 and a valve cap 2, the valve cap 2 being disposed at an open end of the valve body 6, the connection between the valve body 6 and the valve cap 2 being the same as in embodiment 1, and not repeated herein.
The valve rod 1 passes through the valve cover 2 and then stretches into the valve body 6, and the valve rod 1 is in sliding connection with the valve cover 2 and can do linear motion along the axis direction of the valve rod.
The novel valve is characterized in that a corrugated pipe 3 is arranged between the valve rod 1 and the valve body 6, the top end of the corrugated pipe 3 is fixed with the inner side surface of the valve body 6 in a welding or bonding mode, the bottom end of the corrugated pipe 3 is fixed with the valve rod 1, and the corrugated pipe 3 is fixed with the valve rod 1 in a welding or bonding mode.
The valve body 6 is internally provided with a valve seat 9, the valve seat 9 is provided with an opening, correspondingly, the bottom end of the valve rod 1 is provided with a valve core 8 matched with the opening, the valve core is positioned above the opening, the structure of the valve core 8 is the same as that of the embodiment 1, the shape of the opening is matched with that of the valve core 8, and the opening and closing can be realized by the linear up-and-down movement of the valve rod 1.
The space in the valve housing is divided into a first space and a second space by the valve seat 9, wherein the corrugated pipe 3 is positioned in the first space, a first medium circulation port 10 is arranged at the side part of the valve body 6 corresponding to the first space and used for inflow or outflow of a medium 11, and a second medium circulation port 7 is arranged at the side part of the valve body 6 corresponding to the second space and used for inflow or outflow of the medium 11.
The bellows 3 is internally provided with a plurality of inner rigid support ring assemblies and outer rigid support ring assemblies along the axial direction, the inner rigid support ring assemblies are composed of an inner rigid support ring 4, the outer rigid support ring assemblies are composed of an outer rigid support ring 5, and the outer rigid support ring 5 is positioned on the periphery of the inner rigid support ring 4.
The outer annular surface of the outer rigid support ring 5 is an outer convex surface matched with the wave crest shape of the corrugated pipe 3, the outer rigid support ring 5 is attached to the inner surface of the wave crest position of the corrugated pipe 3 through the outer convex surface, the upper surface of the outer rigid support ring 5 is attached to the inner surface of the position between the wave crest and the square wave valley on the wave crest, and the lower surface of the outer rigid support ring 5 is attached to the inner surface of the position between the wave crest and the square wave valley below the wave crest.
The outer annular surface of the inner rigid support ring 4 is provided with an annular cambered surface groove matched with the trough shape of the corrugated pipe 3, and is attached to the inner surface of the trough position of the corrugated pipe 3 through the cambered surface groove, and the inner annular surface of the inner rigid support ring 4 is attached to the valve rod 1.
Preferably, the boundary positions of the adjacent inner rigid support rings 4 are staggered with the wave troughs of the corrugated pipe 3 along the axial direction of the corrugated pipe 3.
In this embodiment, all the wave crest and wave trough positions of the corrugated tube 3 are matched with the inner rigid support ring 4 and the outer rigid support ring 5, or the inner rigid support ring 4 and the outer rigid support ring 5 are arranged at the set wave crest and wave trough positions.
The diameter of the outer annular surface of the inner rigid support ring 4 is smaller than that of the inner annular surface of the outer rigid support ring 5, so that the inner rigid support ring 4 is in clearance fit with the outer rigid support ring 5. And the distance between the outer rigid support ring 5 and the inner rigid support ring 4 meets the radial dimension change requirement when the corrugated pipe 3 stretches.
Wherein the inner rigid support ring 4 at the bottommost end is in contact with the inner surface of the connection portion between the bellows 3 and the valve stem 1, and the inner rigid support ring 4 is supported by the connection portion, thereby supporting the plurality of inner rigid support rings 4.
The outer ring surface of the inner rigid support ring 4 positioned at the topmost end is provided with a convex part which is positioned above the connecting part of the corrugated pipe 3 and the valve body 6 and is attached to the connecting part.
In this embodiment, the outer rigid support ring 5 is composed of a plurality of first ring blocks distributed in the circumferential direction, the number of the first ring blocks is two or three or four or more, and in this embodiment, the number of the first ring blocks is four.
The inner rigid support ring 4 is composed of a plurality of second ring blocks distributed in the circumferential direction, the number of the second ring blocks being two or three or four or more, in this embodiment, the number of the first ring blocks being two.
With this arrangement, the radial dimensional change requirement when the bellows 3 is telescopic is met, and the inner rigid support ring 4 and the outer rigid support ring 5 do not interfere with the telescopic movement of the bellows.
The working method of the valve in the embodiment is as follows:
When the valve is closed, the valve core 8 is tightly attached to the valve seat 9 to seal the opening, the corrugated pipe 3 is in the maximum stretching state, at the moment, a gap is reserved between the inner rigid support ring 4, the inner rigid support ring 4 and the outer rigid support ring 5 are attached, the valve core 8 is separated from the valve seat 9 along with gradual opening of the valve, the valve rod 1 moves upwards, the valve rod 1 drives the corrugated pipe 3 to move upwards to compress, the stretching amount of the corrugated pipe 3 is gradually reduced to a natural state or a compressed state, at the moment, the inner rigid support ring 4 is attached, no gap exists, and the inner rigid support ring 4 is attached to the valve rod 1 through clearance fit between the inner rigid support ring 4 and the outer rigid support ring 5. At this time, the inner rigid support ring 4 and the outer rigid support ring 5 are attached to the bellows 3, and support the bellows 3, thereby receiving the pressure from the fluid medium.
In the valve opening and closing process, the inner rigid support ring 4 and the outer rigid support ring 5 can do a certain amplitude of motion along with the valve rod 1, and are in a floating state, the inner rigid support ring 4 and the outer rigid support ring 5 can not limit the axial displacement of the corrugated pipe 3, so that the smooth opening adjustment of the valve is ensured, the gap reserved between the inner rigid support ring 4 and the outer rigid support ring 5 and between adjacent inner rigid support rings 4 is calculated according to the opening of the valve and the machining precision of the corrugated pipe 3, the inner rigid support ring 4 and the outer rigid support ring 5, the gap reserved is too large, the corrugated pipe 3 generates radial displacement when bearing larger internal pressure, the inner rigid support ring 4 and the outer rigid support ring 5 can not effectively support the corrugated pipe 3, and the gap is too small, so that the corrugated pipe 3 is limited by the inner rigid support ring 4 and the outer rigid support ring 5 when generating axial displacement, and the adjustment of the opening of the valve is indirectly influenced.
By adopting the valve of the embodiment, the corrugated pipe 3 is supported by the inner rigid support ring 4 and the outer rigid support ring 5, no filler is adopted, the problem of flow of the filler does not exist, the rigid floating support is not influenced by the volume change of the filling cavity, and the corrugated pipe 3 can be better supported.
Example 3
The difference from embodiment 1 is that the inner rigid support ring assembly in this embodiment is composed of a plurality of inner rigid support rings 4 coaxially sleeved and the outer rigid support ring assembly is composed of a plurality of outer rigid support rings 5 coaxially sleeved and arranged, and the other structures are the same as those of embodiment 1 and will not be described in detail here.
Example 4
The difference from embodiment 2 is that the inner rigid support ring assembly in this embodiment is composed of a plurality of inner rigid support rings 4 coaxially sleeved and the outer rigid support ring assembly is composed of a plurality of outer rigid support rings 5 coaxially sleeved and arranged, and the other structures are the same as those of embodiment 1 and will not be described in detail here.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211183116.4A CN115574099B (en) | 2022-09-27 | 2022-09-27 | Bellows seal valve of floating rigid support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211183116.4A CN115574099B (en) | 2022-09-27 | 2022-09-27 | Bellows seal valve of floating rigid support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115574099A CN115574099A (en) | 2023-01-06 |
| CN115574099B true CN115574099B (en) | 2026-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211183116.4A Active CN115574099B (en) | 2022-09-27 | 2022-09-27 | Bellows seal valve of floating rigid support |
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| Country | Link |
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| CN (1) | CN115574099B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926698Y (en) * | 2006-04-07 | 2007-07-25 | 李洪 | Fixed membrane metal sealed spherical valve |
| CN114738516A (en) * | 2022-04-24 | 2022-07-12 | 上海弘盛特种阀门制造股份有限公司 | A bellows ball valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009002836A1 (en) * | 2009-05-06 | 2010-11-11 | Robert Bosch Gmbh | gas valve |
| CN201973353U (en) * | 2011-04-12 | 2011-09-14 | 浙江超达阀门股份有限公司 | Valve with bellows seal |
| CN206159513U (en) * | 2016-10-31 | 2017-05-10 | 中国五环工程有限公司 | Pulverized -coal gasification plant's oxygen medium bellows sealing valve |
-
2022
- 2022-09-27 CN CN202211183116.4A patent/CN115574099B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926698Y (en) * | 2006-04-07 | 2007-07-25 | 李洪 | Fixed membrane metal sealed spherical valve |
| CN114738516A (en) * | 2022-04-24 | 2022-07-12 | 上海弘盛特种阀门制造股份有限公司 | A bellows ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115574099A (en) | 2023-01-06 |
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