CN219570861U - Special angular corrugated pipe sealing single-seat control valve - Google Patents
Special angular corrugated pipe sealing single-seat control valve Download PDFInfo
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- CN219570861U CN219570861U CN202320263875.5U CN202320263875U CN219570861U CN 219570861 U CN219570861 U CN 219570861U CN 202320263875 U CN202320263875 U CN 202320263875U CN 219570861 U CN219570861 U CN 219570861U
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Abstract
The utility model discloses a special angular corrugated pipe sealing single-seat control valve, which comprises a valve body assembly, a valve seat, a guide sleeve seat assembly, a valve cover I, a corrugated pipe core rod assembly and a valve cover II; the valve body assembly is provided with a medium inlet and a medium outlet; the valve seat is arranged at a medium outlet of the valve body assembly; the guide sleeve seat assembly is arranged at the inlet of the internal channel of the valve body assembly; the valve cover I is pressed on the guide sleeve seat assembly and is connected with the valve body assembly; the corrugated pipe core rod assembly is inserted into the valve seat, the valve body assembly, the guide sleeve seat assembly and the valve cover I; the valve cover II is pressed on the corrugated pipe core rod assembly and is connected with the valve cover I, the top of the corrugated pipe core rod assembly penetrates out of the valve cover II to be connected with the straight-line travel executing mechanism, and the valve is closed or opened under the linear driving of the straight-line travel executing mechanism. The utility model has small flow resistance and high flow curve precision, and can thoroughly eliminate the possibility of outward leakage of the medium from the movement gap of the valve rod by adopting the corrugated pipe sealing design.
Description
Technical Field
The utility model relates to the field of flow control, in particular to a special angular single-seat control valve sealed by a corrugated pipe, which is applicable to an automatic flow control system with adhesion, easy crystallization, suspended matters, particles, extremely toxic, strong corrosiveness, radioactivity and rare precious fluid media in the industries of petroleum, chemical industry, metallurgy and the like.
Background
The traditional angular single-seat valve is an old product for many years, and mainly comprises valve body, valve cover, valve core, valve rod, valve seat, filler, gasket and other parts. The medium inlet end and the medium outlet end of the valve body adopt a 90-degree right-angle structure, the core rod component can be guided by the guide seat, and the core rod component can move up and down in the valve body under the pushing of the actuating mechanism, so that the valve is opened or closed. The valve has old appearance structure, unreliable sealing structure and larger flow passage resistance, can not meet the field working condition requirements of 45 degrees, 50 degrees, 60 degrees and the like of the included angle between the medium inlet and the medium outlet of the valve body, and is also not suitable for being used in the working condition occasions such as extremely toxic, volatile, rare and precious mediums and the like.
Disclosure of Invention
The utility model provides a novel special angular corrugated pipe sealing single-seat control valve, which aims to overcome the obvious defects that the existing angular single-seat valve is old in appearance structure, unreliable in sealing structure, large in flow passage resistance, and not suitable for being used under the working conditions of adhesiveness, easiness in crystallization, severe toxicity, easiness in volatilization, strong corrosiveness, radioactivity, rare and noble mediums and the like. The valve is a top-guide type single-seat valve, the size of an included angle between a medium inlet and a medium outlet of a valve body is of a 60-degree angular structure, a flow channel is simple and smooth, flow resistance is small, flow curve precision is high, meanwhile, a corrugated pipe seal design is adopted, the possibility that a medium leaks outwards from a valve rod movement gap can be thoroughly eliminated, the valve is particularly suitable for adjusting and controlling working conditions that the included angle between an inlet and an outlet of a pipeline in industries such as petroleum, chemical industry and metallurgy is 60-degree, high viscosity and contains suspended matters, granular fluid and highly toxic, volatile and rare precious mediums, coking, blocking and medium leakage can be avoided, self-cleaning and cleaning are facilitated, the service life of the product is prolonged, and the safety of the field environment is guaranteed.
The utility model is realized according to the following technical scheme:
a special angled bellows seal single seat control valve comprising:
the valve body assembly is provided with at least one medium inlet and at least one medium outlet;
the valve seat is arranged at a medium outlet of the valve body assembly;
the guide sleeve seat assembly is arranged at the inlet of the internal channel of the valve body assembly;
the valve cover I is pressed on the guide sleeve seat assembly and is connected with the valve body assembly;
the corrugated pipe core rod assembly is inserted into the valve seat, the valve body assembly, the guide sleeve seat assembly and the valve cover I;
the valve cover II is pressed on the corrugated pipe core bar component and is connected with the valve cover I, and the top of the corrugated pipe core bar component penetrates out of the valve cover II to be connected with the straight travel executing mechanism, and the valve is closed or opened under the linear driving of the straight travel executing mechanism.
In some embodiments, the valve body assembly is comprised of a valve body and a valve body flange welded; the valve body is internally provided with an axial and penetrating channel, the bottom surface outlet of the channel is used as a medium outlet, the outer circumferential surface of the valve body is provided with an upward inclined extension channel, and the top surface inlet of the extension channel is used as a medium inlet.
In some embodiments, the included angle between the media inlet and the media outlet may be any one of a bevel angle of 45 °, 50 °, 60 °, and 70 °.
In some embodiments, the valve seat is screwed at a medium outlet of the valve body assembly in a threaded mode, and a valve core in the bellows core rod assembly extends into the valve seat and performs closing sealing; when the valve core moves up and down, the flow cross section area of the fluid can be changed, and the functions of regulating the fluid flow and controlling the pressure are realized.
In some embodiments, a step is provided on an inner wall of an inlet of an internal passage of the valve body assembly, a flange structure is provided on a top surface of the guide sleeve seat assembly, and axial movement of the guide sleeve seat assembly is limited by cooperation of the flange structure and the step.
In some embodiments, the bellows core rod assembly includes a valve stem, a bellows assembly, a valve spool; after the valve rod penetrates through the corrugated pipe assembly, the bottom of the valve rod is connected with a valve core positioned between the valve seat and the guide sleeve seat assembly, and the top of the valve rod penetrates out of the valve cover II.
In some embodiments, the top of the bellows assembly is provided with a flange structure which is placed on the valve cover I and is pressed and fixed by the valve cover II.
In some embodiments, the valve element is capable of seating in the valve seat and performing a closing seal; the top of the valve core is connected with the valve rod through threads, and the valve core and the valve rod are fixed by inserting radial cylindrical pins, so that looseness is prevented.
In some embodiments, a packing assembly is arranged between the inner wall of the valve cover II and a valve rod in the corrugated pipe core rod assembly; the bottom of the packing assembly is limited to axially move through a step in the valve cover II, and the top of the packing assembly is tightly pressed through a packing gland nut fixed on the valve cover II.
In some embodiments, the valve cover I and the valve body assembly and the valve cover II and the valve cover I are fixed together through studs and nuts.
Compared with the prior art, the utility model has the beneficial effects that:
1. the valve body flow passage adopts a smooth streamline angular design, has high flow curve precision, simple and smooth flow path and small flow resistance, is easy for medium flow, avoids coking and blockage, and is convenient for self-cleaning and cleaning.
2. The corrugated pipe sealing structure is adopted to form a corrugated pipe and stuffing box double sealing structure form, so that the possibility of outward leakage of the medium from a valve rod movement gap can be thoroughly eliminated, various process operation requirements are met, the environment is protected, and the personal safety is ensured.
3. Good cutting performance and tight closing.
4. The installation and the disassembly are convenient, the number of vulnerable parts is small, and the maintenance are simple and easy to implement.
5. The valve can be matched with any kind of driving devices such as various home and abroad straight-travel pneumatic film type actuating mechanisms, pneumatic piston type actuating mechanisms, manual actuating mechanisms, electric actuating mechanisms and the like, and the application range of the angular single-seat valve is widened.
6. The utility model is suitable for flow control occasions in which the included angle between the inlet and the outlet of a pipeline medium in the industries of petroleum, chemical engineering, metallurgy and the like is 60-degree oblique angle (45 degrees, 50 degrees and 70 degrees oblique angle can be adopted according to actual working conditions), and can also be used for bottom discharging control of various pressure containers. Can be widely applied to an automatic control system of adherent, easy-to-crystallize, extremely toxic, strong-corrosiveness, radioactive and rare noble mediums, and is also an ideal choice for slurry, high-density and fluid control containing suspended matters and particles.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
FIG. 1 is a cross-sectional view of the overall construction of a special angular bellows seal single seat control valve of the present utility model;
FIG. 2 is a cross-sectional view of a valve body assembly of the present utility model;
FIG. 3 is a cross-sectional view of a valve cover I of the present utility model;
FIG. 4 is a cross-sectional view of a valve cover II of the present utility model;
FIG. 5 is a schematic view of a bellows core pin assembly of the present utility model;
FIG. 6 is a schematic view of a bellows assembly of the present utility model;
FIG. 7 is a schematic view of a valve cartridge of the present utility model (a is a front view, b is a left side view, and c is a top cross-sectional view);
fig. 8 is a schematic view of a valve seat according to the present utility model (a is a front cross-sectional view, and b is a left side view).
The attached drawings are identified: the valve comprises a valve body assembly, a 2-valve seat, a 3-bellows core rod assembly, a 4-guide sleeve seat assembly, a 5-tooth-shaped gasket I, a 6-tooth-shaped gasket II, a 7-stud and nut assembly, an 8-valve cover I, a 9-tooth-shaped gasket III, a 10-tooth-shaped gasket IV, an 11-stud and nut assembly, a 12-valve cover II, a 13-packing assembly and a 14-packing gland nut; 11-valve body, 12-valve body flange, 31-valve rod, 32-bellows subassembly, 33-case, 34-cylindric lock.
It should be noted that these drawings and the written description do not limit the scope of the inventive concept in any way, but rather illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "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.
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. 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.
As shown in fig. 1, the special angular corrugated pipe sealing single-seat control valve is composed of a valve body assembly 1, a valve seat 2, a corrugated pipe core rod assembly 3, a guide sleeve seat assembly 4, a tooth-shaped gasket I5, a tooth-shaped gasket II 6, a valve cover I8, a tooth-shaped gasket III 9, a tooth-shaped gasket IV 10, a valve cover II 12, a packing assembly 13, a packing gland nut 14, a stud, a nut and other parts. The valve body assembly 1 is provided with at least one medium inlet and at least one medium outlet; the valve seat 2 is arranged at a medium outlet of the valve body assembly 1; the guide sleeve seat assembly 3 is arranged at the inlet of the internal channel of the valve body assembly 1; the valve cover I8 is pressed on the guide sleeve seat assembly 4 and is connected with the valve body assembly 1; the bellows core bar component 3 is inserted into the valve seat 2, the valve body component 1, the guide sleeve seat component 4 and the valve cover I8; the valve cover II 12 is pressed on the corrugated pipe core rod assembly 3 and is connected with the valve cover I8, and the top of the corrugated pipe core rod assembly 3 penetrates out of the valve cover II 12 to be connected with the straight-line travel executing mechanism, and the valve is closed or opened under the linear driving of the straight-line travel executing mechanism.
As shown in fig. 2, the valve body assembly is composed of a valve body 11 and a valve body flange 12, and is integrally formed by welding. The valve body 11 is provided with an axial and penetrating channel, the channel adopts a smooth streamline design, the flow path is simple, and the flow resistance is small. The bottom outlet of the passage serves as a medium outlet, and the outer circumferential surface of the valve body 11 is provided with an upward inclined extension passage, and the top inlet of the extension passage serves as a medium inlet.
The preferable scheme is as follows: the size of the included angle between the medium inlet and the medium outlet is 60 degrees, and of course, the size of the included angle can be customized according to the needs of users, such as 45 degrees, 50 degrees, 70 degrees and the like, so as to meet the requirements of actual working conditions on site.
As shown in fig. 1 and 3, the valve seat 2 is screwed in a medium outlet in a threaded form, and a valve core in the bellows core rod assembly 3 extends into the valve seat 2, so that the valve core can change the flow cross section area of fluid when moving up and down, and the functions of regulating the fluid flow and controlling the pressure are realized. The inner wall of the inlet of the internal channel of the valve body component 1 is provided with a step, the top surface of the guide sleeve seat component 4 is provided with a flange structure, and the axial movement of the guide sleeve seat component 4 is limited by the cooperation of the flange structure and the step. A tooth-shaped gasket I5 is arranged between the flange structure and the step. The valve cover I8 is pressed on the guide sleeve seat assembly 4 through the stud, the nut assembly 7 and the tooth-shaped gasket II 6 and is connected with the valve body assembly 1.
As shown in fig. 5, 6, 7 and 8, the bellows core bar assembly 3 includes a valve stem 31, a bellows assembly 32 and a valve core 33; after the valve rod 31 penetrates through the bellows assembly 32, the bottom of the valve rod 31 is connected with a valve core 33 positioned between the valve seat and the guide sleeve seat assembly, and the top of the valve rod 31 penetrates out of the valve cover II 12. The valve core 33 can be tightly attached to the valve seat 2 and is closed and sealed; the top of the valve core 33 is connected with the valve rod 31 through threads, and the valve core and the valve rod are fixed by inserting the radial cylindrical pin 24, so that looseness is prevented. The top of bellows subassembly 32 is equipped with flange structure, and this flange structure is placed at valve gap I8, has placed profile of tooth gasket III 9 between valve gap I8 and flange structure, and valve gap II 12 presses on bellows subassembly 32 through double-screw bolt, nut assembly 11, profile of tooth gasket IV 10 to link to each other with valve gap I8.
With continued reference to FIG. 1, a packing assembly 13 is disposed between the inner wall of the valve cover II 12 and the valve stem 31; the bottom of the packing assembly 13 is restrained from axial movement by a step in the valve cover ii 12, and the top of the packing assembly 13 is compressed by a packing gland nut 14 secured to the valve cover ii 12.
The working process comprises the following steps: the uppermost end of the corrugated pipe core rod assembly (see figure 5 in detail) can be matched and connected with a corresponding straight travel executing mechanism, and under the linear driving of the executing mechanism, the packing and guide sleeve seat assembly can be utilized for guiding, and the packing, the guide sleeve seat assembly and the inner surface of the valve seat can be subjected to up-down linear reciprocating movement to close or open the valve. When the valve core moves up and down, the flow cross section area of the fluid can be changed, and the functions of regulating the fluid flow and controlling the pressure are realized. The valve rod and the valve cover II are sealed by PTFE or flexible graphite filler, and the uppermost end of the valve rod and the valve cover II can be matched and connected with a corresponding straight stroke executing mechanism.
The rated Cv value of the utility model is 44, and the working and use temperature is-17 to +350 ℃. All parts of the valve are subjected to special design, special material selection and process treatment. The structure is compact, the design is reasonable, and the possibility of outward leakage of the medium from the valve rod movement gap can be thoroughly eliminated by adopting the corrugated pipe and stuffing box double sealing structure. Meanwhile, the leakage grade can meet the V and VI grade requirements in the industry standards of GB/T4213-2008, IEC60534-4, ASME B16.104 and the like, so that the valve can reliably work under the working conditions of high viscosity, suspended substances, granular fluid, extremely toxic, volatile and rare noble mediums, coking, blockage and medium leakage can be avoided, self-cleaning and cleaning are facilitated, the whole working life cycle of the valve is prolonged, the safety of the site environment is guaranteed, and the application range of the angular single-seat valve product is widened.
In addition, the included angle between the medium inlet and the medium outlet of the valve body assembly is 60 degrees, and the included angle can be customized according to the needs of users, such as 45 degrees, 50 degrees, 70 degrees and the like, so as to meet the requirements of on-site actual working conditions. The device can be used for flow control occasions of 60-degree oblique angles (45 degrees, 50 degrees and 70 degrees oblique angles can also be adopted according to actual working conditions) of inlet and outlet angles of pipeline media in industries such as petroleum, chemical industry and metallurgy, and can also be used for bottom discharging control of various pressure containers.
In summary, the utility model has the following advantages: the valve body flow passage adopts a smooth streamline angular design, has high flow curve precision, simple and smooth flow path and small flow resistance, is easy for medium flow, avoids coking and blockage, and is convenient for self-cleaning and cleaning. The corrugated pipe sealing structure is adopted to form a corrugated pipe and stuffing box double sealing structure form, so that the possibility of outward leakage of the medium from a valve rod movement gap can be thoroughly eliminated, various process operation requirements are met, the environment is protected, and the personal safety is ensured. Good cutting performance and tight closing. The leakage grade can meet the V and VI grade requirements in the industry standards of GB/T4213, IEC60534-4, ASME B16.104 and the like. The installation and the disassembly are convenient, the number of vulnerable parts is small, and the maintenance are simple and easy to implement. The valve can be matched with any kind of driving devices such as various home and abroad straight-travel pneumatic film type actuating mechanisms, pneumatic piston type actuating mechanisms, manual actuating mechanisms, electric actuating mechanisms and the like, and the application range of the angular single-seat valve is widened. The utility model is suitable for flow control occasions in which the included angle between the inlet and the outlet of a pipeline medium in the industries of petroleum, chemical engineering, metallurgy and the like is 60-degree oblique angle (45 degrees, 50 degrees and 70 degrees oblique angle can be adopted according to actual working conditions), and can also be used for bottom discharging control of various pressure containers. Can be widely applied to an automatic control system of adherent, easy-to-crystallize, extremely toxic, strong-corrosiveness, radioactive and rare noble mediums, and is also an ideal choice for slurry, high-density and fluid control containing suspended matters and particles.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present utility model.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (10)
1. A special angular bellows seal single seat control valve, comprising:
the valve body assembly is provided with at least one medium inlet and at least one medium outlet;
the valve seat is arranged at a medium outlet of the valve body assembly;
the guide sleeve seat assembly is arranged at the inlet of the internal channel of the valve body assembly;
the valve cover I is pressed on the guide sleeve seat assembly and is connected with the valve body assembly;
the corrugated pipe core rod assembly is inserted into the valve seat, the valve body assembly, the guide sleeve seat assembly and the valve cover I;
the valve cover II is pressed on the corrugated pipe core bar component and is connected with the valve cover I, and the top of the corrugated pipe core bar component penetrates out of the valve cover II to be connected with the straight travel executing mechanism, and the valve is closed or opened under the linear driving of the straight travel executing mechanism.
2. A special angled bellows seal single seat control valve according to claim 1, wherein: the valve body assembly is formed by welding a valve body and a valve body flange;
the valve body is internally provided with an axial and penetrating channel, the bottom surface outlet of the channel is used as a medium outlet, the outer circumferential surface of the valve body is provided with an upward inclined extension channel, and the top surface inlet of the extension channel is used as a medium inlet.
3. A special angled bellows seal single seat control valve according to claim 2, wherein: the included angle between the medium inlet and the medium outlet may be any one of 45 °, 50 °, 60 ° and 70 °.
4. A special angled bellows seal single seat control valve according to claim 1, wherein: the valve seat is screwed in a medium outlet of the valve body assembly in a threaded mode, a valve core in the corrugated pipe core rod assembly stretches into the valve seat, and when the valve core moves up and down, the flow cross section area of fluid can be changed, so that the functions of adjusting the fluid flow and controlling the pressure are realized.
5. A special angled bellows seal single seat control valve according to claim 1, wherein: the valve body assembly is characterized in that a step is arranged on the inner wall of an inlet of an inner channel of the valve body assembly, a flange structure is arranged on the top surface of the guide sleeve seat assembly, and the axial movement of the guide sleeve seat assembly is limited through the cooperation of the flange structure and the step.
6. A special angled bellows seal single seat control valve according to claim 1, wherein: the corrugated pipe core rod assembly comprises a valve rod, a corrugated pipe assembly and a valve core; after the valve rod penetrates through the corrugated pipe assembly, the bottom of the valve rod is connected with a valve core positioned between the valve seat and the guide sleeve seat assembly, and the top of the valve rod penetrates out of the valve cover II.
7. A special angled bellows seal single seat control valve according to claim 6, wherein: the top of bellows subassembly is equipped with flange structure, and this flange structure is placed at valve gap I, by valve gap II compresses tightly fixedly.
8. A special angled bellows seal single seat control valve according to claim 6, wherein: the valve core can be tightly attached to the valve seat and is closed and sealed; the top of the valve core is connected with the valve rod through threads, and the valve core and the valve rod are fixed by inserting radial cylindrical pins, so that looseness is prevented.
9. A special angled bellows seal single seat control valve according to claim 1, wherein: a packing assembly is arranged between the inner wall of the valve cover II and a valve rod in the corrugated pipe core rod assembly; the bottom of the packing assembly is limited to axially move through a step in the valve cover II, and the top of the packing assembly is tightly pressed through a packing gland nut fixed on the valve cover II.
10. A special angled bellows seal single seat control valve according to claim 1, wherein: the valve cover I and the valve body assembly and the valve cover II and the valve cover I are fixed together through the stud and the nut assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263875.5U CN219570861U (en) | 2023-02-21 | 2023-02-21 | Special angular corrugated pipe sealing single-seat control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263875.5U CN219570861U (en) | 2023-02-21 | 2023-02-21 | Special angular corrugated pipe sealing single-seat control valve |
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| Publication Number | Publication Date |
|---|---|
| CN219570861U true CN219570861U (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320263875.5U Active CN219570861U (en) | 2023-02-21 | 2023-02-21 | Special angular corrugated pipe sealing single-seat control valve |
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| Country | Link |
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| CN (1) | CN219570861U (en) |
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- 2023-02-21 CN CN202320263875.5U patent/CN219570861U/en active Active
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