CN220816582U - Valve core sealing structure of high-temperature balance type control valve - Google Patents
Valve core sealing structure of high-temperature balance type control valve Download PDFInfo
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- CN220816582U CN220816582U CN202322482957.1U CN202322482957U CN220816582U CN 220816582 U CN220816582 U CN 220816582U CN 202322482957 U CN202322482957 U CN 202322482957U CN 220816582 U CN220816582 U CN 220816582U
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- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a valve core sealing structure of a high-temperature balance type control valve, which is characterized by comprising a valve rod, a valve core, a valve cage and a C-shaped sealing ring, wherein the bottom of the valve rod is connected with the valve core, the valve cage is connected to the outer ring wall of the valve core, the C-shaped sealing ring is arranged between the valve core and the valve cage, and the cross section edge of the valve cage is of a baffle plate structure.
Description
Technical Field
The utility model relates to the technical field of valve core cage sealing, in particular to a valve core sealing structure of a high-temperature balance type control valve.
Background
In the high temperature balance type control valve, in order to ensure that a high sealing level is realized, many manufacturers widely adopt a C-shaped metal sealing ring structure. The structure is characterized by high temperature resistance, tight shut-off and high installation difficulty.
However, in the assembly process, the contact between the valve core and the valve seat is ensured, and the contact between the valve core sealing ring and the valve cage sealing surface is ensured to be synchronous, so that very high requirements are put forward on processing, and the form and position tolerance requirements are very strict, so that the repeated disassembly and assembly debugging conditions frequently occur in the production process, even the assembly is barely qualified, and the use is problematic.
Disclosure of utility model
According to the technical problems, the utility model provides a valve core sealing structure of a high-temperature balance type control valve, which is characterized by comprising a valve rod, a valve core, a valve cage and a C-shaped sealing ring, wherein the bottom of the valve rod is connected with the valve core, the outer ring wall of the valve core is connected with the valve cage, the C-shaped sealing ring is arranged between the valve core and the valve cage, the edge of the section of the valve cage is in a baffle plate structure,
The baffle plate structure comprises a first vertical part, an inclined part and a second vertical part, wherein the first vertical part is connected with one end of the inclined part into a whole, the other end of the inclined part is connected with the second vertical part into a whole, and the second vertical part is contacted with the C-shaped sealing ring.
The utility model has the beneficial effects that:
according to the utility model, the shape of the valve cage is changed, so that the valve cage and the C-shaped sealing ring are sealed by original point contact, the contact area between the valve cage and the C-shaped sealing ring is increased, namely the valve cage and the C-shaped sealing ring are changed into linear sealing, so that the assembly difficulty and the workpiece processing difficulty are reduced, the product stability and the reliability are improved, the assembly processing difficulty is reduced, and the product stability is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a valve core sealing structure of a high temperature balance type control valve of the present utility model;
FIG. 2 is an enlarged view of structure A of the valve core sealing structure of the high temperature balance type control valve of the present utility model;
FIG. 3 is a schematic diagram of a valve core sealing structure of a high temperature balance control valve according to the present utility model;
FIG. 4 is a schematic diagram of a valve core sealing structure of a high temperature balance control valve according to the present utility model;
The following figures are shown: 1. the valve comprises a valve core, a valve cage, a first vertical part, a tilting part, a second vertical part, a valve rod and a 4. C-shaped sealing ring, wherein the valve core, the valve cage and the valve cage are arranged in the valve core, the first vertical part and the tilting part are arranged in the valve cage, the tilting part is arranged in the valve cage, the second vertical part is arranged in the valve cage, and the valve rod is arranged in the valve cage.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in the figure, the bottom of the valve rod 3 is connected with the valve core 1, the outer ring wall of the valve core 1 is connected with the valve cage 2, a C-shaped sealing ring 4 is arranged between the valve core 1 and the valve cage 2,
As shown in fig. 2, the cross-sectional edge of the valve cage 2 is in a baffle structure, the baffle structure is composed of a first vertical portion 21, an inclined portion 22 and a second vertical portion 23, the first vertical portion 21 is connected with one end of the inclined portion 22 into a whole, the other end of the inclined portion 22 is connected with the second vertical portion 23 into a whole, and the second vertical portion 23 is in contact with the C-shaped sealing ring 4.
Example 2
The utility model changes the shape of the valve cage, ensures that the valve cage and the C-shaped sealing ring are sealed by original point contact, increases the contact area between the two, namely, the two are changed into linear sealing, thereby reducing the assembly difficulty and the workpiece processing difficulty, increasing the product stability and the reliability, reducing the assembly processing difficulty, improving the product stability,
In the use process, the C-shaped sealing ring 4 is suitable for a high-temperature working condition valve, and can realize V-level shutoff sealing under the application working condition that the temperature exceeds 316 ℃. The C-shaped sealing ring 4 fixed on the outer edge of the valve core 1 is made of metal. When the valve core is contacted with the valve seat to close the valve, the C-shaped sealing ring 4 is extruded towards the wall of the valve cage 2, thereby avoiding the formation of a secondary leakage path between the valve core 1 and the wall of the valve cage 2, if the valve core is not contacted with the valve seat (namely, the valve is in an open state), the C-shaped sealing ring 4 can not be extruded, and then the piston rings which are also fixed on the outer edge of the valve core 1 play a role in avoiding the formation of the secondary leakage path, the installation directions of the C-shaped sealing rings are different for different medium flow directions in the installation process,
As shown in fig. 3, when the flow rate of the medium is the flow, the C-shaped sealing ring 4 is downward, the medium is impacted by the pressure of the medium in the direction opposite to the opening, the opening of the sealing ring is enlarged, and the sealing performance is better;
as shown in fig. 4, when the medium flow is flowing, the C-shaped sealing ring 4 is upward, the medium is impacted by the pressure of the medium in the direction opposite to the opening, the opening of the sealing ring is enlarged, and the sealing performance is better.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. Various components mentioned in the present utility model are common in the art, and it should be understood by those skilled in the art that the present utility model is not limited by the above embodiments, and the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications can be made in the present utility model without departing from the spirit and scope of the utility model, which is defined in the claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (2)
1. The valve core sealing structure of the high-temperature balance type control valve is characterized by comprising a valve rod, a valve core, a valve cage and a C-shaped sealing ring, wherein the bottom of the valve rod is connected with the valve core, the valve cage is connected to the outer ring wall of the valve core, the C-shaped sealing ring is arranged between the valve core and the valve cage, and the edge of the section of the valve cage is of a baffle plate structure.
2. The valve core sealing structure of the high-temperature balance type control valve according to claim 1, wherein the baffle structure is composed of a first vertical portion, an inclined portion and a second vertical portion, the first vertical portion is integrally connected with one end of the inclined portion, the other end of the inclined portion is integrally connected with the second vertical portion, and the second vertical portion is in contact with the C-shaped sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322482957.1U CN220816582U (en) | 2023-09-13 | 2023-09-13 | Valve core sealing structure of high-temperature balance type control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322482957.1U CN220816582U (en) | 2023-09-13 | 2023-09-13 | Valve core sealing structure of high-temperature balance type control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816582U true CN220816582U (en) | 2024-04-19 |
Family
ID=90677198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322482957.1U Active CN220816582U (en) | 2023-09-13 | 2023-09-13 | Valve core sealing structure of high-temperature balance type control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816582U (en) |
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2023
- 2023-09-13 CN CN202322482957.1U patent/CN220816582U/en active Active
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