CN218326333U - High-temperature-resistant bidirectional sealing ceramic ball valve - Google Patents
High-temperature-resistant bidirectional sealing ceramic ball valve Download PDFInfo
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- CN218326333U CN218326333U CN202222593275.3U CN202222593275U CN218326333U CN 218326333 U CN218326333 U CN 218326333U CN 202222593275 U CN202222593275 U CN 202222593275U CN 218326333 U CN218326333 U CN 218326333U
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- high temperature
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Abstract
The utility model relates to a ball valve technical field, concretely relates to high temperature resistant two-way sealing pottery ball valve, it includes the valve body, the internally mounted of valve body has the disk seat, install four split support rings between disk seat and the valve body, the junction of valve body and four split support rings is equipped with inside sunken mounting groove, inside the mounting groove of four split support ring outside flange insert valve body, four split support rings adopt split type structure to constitute, constitute jointly by four group support rings, and four group support rings distribute in the four corners position of valve body, be equipped with the packing step between disk seat and the valve body, the inside packing of packing step has round high temperature resistant sealing filler, four split support ring's lateral wall is equipped with the side direction flange of an organic whole with it, the side direction flange stretches into inside the packing step to the tight high temperature resistant sealing filler in side direction flange top.
Description
Technical Field
The utility model relates to a ball valve technical field especially relates to a high temperature resistant two-way seal ceramic ball valve.
Background
The ball valve is widely applied to industrial and civil pipeline systems, realizes the on-off cut-off and flow regulation of various media, and has a series of advantages of short switch stroke, high speed, reliable sealing, small installation space, wide applicable temperature and pressure range and the like.
Ordinary ball valve generally adopts two disk seats, does not have eccentric spheroid as sealed vice combination, and the spheroid closely coincide with whole journey of disk seat switch, realizes closing and the circulation of valve, however, the spheroid rotates the in-process, and whole journey and disk seat contact closely of spheroid, and the problem of bringing is: the friction resistance is large in the opening and closing process, the driving torque of the valve operating mechanism is large, and a large torque actuator needs to be matched. The cost of the equipment is increased. The ball body is easy to wear by whole friction, and the spherical surface or the valve seat surface is easy to leak internally and is difficult to repair after being worn.
The structure scheme of the common ball valve is based on different varieties of valve seats and ball materials, and can also be used in different occasions of low temperature and high temperature, but the high temperature type friction force is large, the ball surface is easy to scratch and leak, the service life is short, the operation is heavy, and the low temperature form limits the application range.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, an object of the utility model is to provide a high temperature resistant two-way sealing ceramic ball valve.
The above technical object of the present invention can be achieved by the following technical solutions:
the utility model provides a high temperature resistant two-way sealing ceramic ball valve, includes the valve body, the internally mounted of valve body has the disk seat, the disk seat adopts floating structure, install four split support rings between disk seat and the valve body, the valve body is equipped with inside sunken mounting groove with the junction of four split support rings, inside the mounting groove of four split support ring outside flange insert valve body, four split support rings adopt split type structure to constitute jointly, and four group's support rings distribute in the four corners position of valve body, be equipped with the packing step between disk seat and the valve body, the inside packing of packing step has round high temperature resistant seal to pack, the lateral wall of four split support rings is equipped with the side direction flange of an organic whole with it, the side direction flange stretches into inside the packing step to the tight high temperature resistant seal of side direction flange top is packed.
Furthermore, a compression bolt is installed between the four-way support ring and the valve seat.
Furthermore, a valve driving shaft is installed inside the valve body, a valve core is fixed on the valve driving shaft, and the axis of the valve driving shaft is in an eccentric structure compared with the center position of the valve core.
Further, the diameter of the outer circle of the valve seat is larger than that of the outer circle of the sealing surface of the valve seat.
Furthermore, the sealing material of the excircle of the valve seat is made of high-temperature resistant graphite, and the sealing pair of the valve seat and the valve core is made of ceramic bodies.
To sum up, the utility model discloses following beneficial effect has:
the structure design of the floating valve seat and the components thereof of the utility model can meet the requirement of bidirectional sealing; the clamp ring type support ring with a special structure is structurally designed, so that high-temperature filler can be compressed, the assembly is convenient, the high-temperature filler cannot be separated from the inner wall of the valve body, different sealing materials are replaced, the requirements of different temperature media are met, and high-temperature sealing is realized; the ball valve has the advantages that the ball driving shaft is deviated from the center of the ball valve, so that the ball body and the valve seat are quickly separated from each other in an opening and closing mode, the friction resistance between the ball body and the valve seat is effectively reduced, the torque of the driving actuator is further reduced, the matching cost of equipment is reduced, high-temperature-resistant ceramic internals or various alloy sealing auxiliary internals are adopted, and the service life of an internal sealing element is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of the present invention at a in fig. 1.
In the figure, 1, a valve body; 2. a quarto support ring; 3. a hold-down bolt; 4. a valve core; 5. high temperature resistant sealing filler; 6. a valve seat; 7. the valve drives the shaft.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying drawings in which fig. 1 through 2 are shown. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1: the utility model provides a high temperature resistant two-way sealing ceramic ball valve, includes valve body 1, and the internally mounted of valve body 1 has disk seat 6, and 6 excircle diameters of disk seat are greater than 6 sealed off-centre diameters of face of disk seat, and whole disk seat 6 adopts floating structure, installs quarto support ring 2 between disk seat 6 and the valve body 1, installs clamp bolt 3 between quarto support ring 2 and the disk seat 6.
A valve driving shaft 7 is arranged in the valve body 1, and a valve core 4 is fixed on the valve driving shaft 7.
The excircle sealing material of the valve seat 6 is made of high-temperature-resistant graphite, and the sealing pair of the valve seat 6 and the valve core 4 is made of ceramic bodies, so that the high-temperature-resistant valve is suitable for high-temperature requirements.
The junction of valve body 1 and quarto support ring 2 is equipped with inside sunken mounting groove, and the outside flange of quarto support ring 2 inserts inside the mounting groove of valve body 1 to restricted disk seat 6's floating range distance, quarto support ring 2 adopts split type structure to constitute, comprises four group's support rings jointly, and four group's support rings distribute in the four corners position of valve body 1.
Be equipped with between disk seat 6 and the valve body 1 and fill the step, the inside packing that fills the step has the sealed filler 5 of high temperature resistant of round, and the sealed filler 5 of high temperature resistant can enough realize the static sealing performance between disk seat 6 and the valve body 1, also can play high temperature resistant effect simultaneously, and the lateral wall of four-way support ring 2 is equipped with the side direction flange integrative with it, and the side direction flange stretches into inside the filling step to the tight high temperature resistant sealed filler 5 in side direction flange top.
The axis of the valve driving shaft 7 is in an eccentric structure compared with the central position of the valve core 4, as shown in fig. 1, s is the eccentric amount of the eccentric structure, and due to the action of the eccentric amount s of the ball, the radius distance of the contact surface of the ball and the valve seat 6 is gradually reduced in the counterclockwise opening process of the ball, the maximum gap is formed between the full opening of the valve core 4 and the sealing surface of the valve seat 6, namely, the sealing pressing force of the valve core 4 on the valve seat 6 is gradually reduced in the opening process of the valve core 4, namely, the friction force between the valve core 4 and the valve seat 6 is gradually reduced, and can completely disappear at a certain rotation angle, and the eccentric amount s can enable the ball to be separated from the valve seat 6 when the ball is opened at a small angle, so that the instant friction force is reduced, and the service life of the sealing pair is prolonged.
In the opposite process, in the closing process, along with the fact that the gap between the valve seat 6 and the valve core 4 is smaller and smaller, the sealing pressing force is larger and larger in the closing process, and the effect that the valve is closed more and more tightly can be achieved.
The 6 subassemblies of disk seat adopt the design of form of floating, between four-way support ring 2 and the valve body 1, all keep reasonable clearance of floating between disk seat 6 and the valve body 1, along with the medium flow direction difference, 6 subassemblies of disk seat can control and float in 1 runner direction of valve body, when the medium got into from the left side, the 6 subassemblies of disk seat floated to the right side with the vice contact back of case 4 seal, and final position restricts in the support ring right side end face.
Due to the crank action of the eccentric valve core 4, the contact between the sealing surface of the valve core 4 and the sealing surface of the valve seat 6 is pressed more and more tightly, the influence of the floating distance of the valve seat 6 assembly on the sealing specific pressure is eliminated by means of eccentric pressing, and reliable sealing is realized.
When the medium got into from the right side, 6 subassemblies of disk seat were under the medium pressure effect, and the sealed face of case 4 of automatic laminating, because 6 excircle diameter of disk seat are greater than 6 sealed off-centre diameters of surface of disk seat, and both form sealing pressure differential, made disk seat 6 under this pressure differential action, laminated 4 sealed faces of case all the time, relied on the eccentric of 4 sphere of case to compress tightly the influence of eliminating 6 subassemblies floating distance of disk seat to sealed specific pressure simultaneously, formed both sides and pressed, realized reliably sealed.
The above description is provided for further details of the present invention with reference to specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical staff is based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the scope.
Claims (5)
1. The utility model provides a high temperature resistant two way seal pottery ball valve, includes valve body (1), its characterized in that: the internally mounted of valve body (1) has disk seat (6), disk seat (6) adopt floating structure, install quarto support ring (2) between disk seat (6) and valve body (1), valve body (1) are equipped with inside sunken mounting groove with the junction of quarto support ring (2), the outside flange of quarto support ring (2) inserts inside the mounting groove of valve body (1), quarto support ring (2) adopt split type structure to form, constitute jointly by four group's support rings, and four group's support rings distribute in the four corners position of valve body (1), be equipped with the packing step between disk seat (6) and valve body (1), the intussuseption of packing step is filled with round high temperature resistant seal filler (5), the lateral wall of quarto support ring (2) is equipped with the side direction flange of an organic whole with it, the side direction flange stretches into inside the packing step to the side direction flange top is tight high temperature resistant seal filler (5).
2. The high temperature resistant two-way sealed ceramic ball valve of claim 1, wherein: and a hold-down bolt (3) is arranged between the four-opening support ring (2) and the valve seat (6).
3. The high temperature resistant two-way sealed ceramic ball valve of claim 2, wherein: the valve is characterized in that a valve driving shaft (7) is arranged inside the valve body (1), a valve core (4) is fixed on the valve driving shaft (7), and the axis of the valve driving shaft (7) is in an eccentric structure relative to the center position of the valve core (4).
4. The high temperature resistant two way seal ceramic ball valve of claim 3, wherein: the diameter of the outer circle of the valve seat (6) is larger than that of the outer circle of the sealing surface of the valve seat (6).
5. The high temperature resistant two-way sealed ceramic ball valve of claim 4, wherein: the excircle of the valve seat (6) is sealed by high-temperature resistant graphite, and the sealing pair of the valve seat (6) and the valve core (4) is made of ceramic bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222593275.3U CN218326333U (en) | 2022-09-29 | 2022-09-29 | High-temperature-resistant bidirectional sealing ceramic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222593275.3U CN218326333U (en) | 2022-09-29 | 2022-09-29 | High-temperature-resistant bidirectional sealing ceramic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218326333U true CN218326333U (en) | 2023-01-17 |
Family
ID=84820884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222593275.3U Active CN218326333U (en) | 2022-09-29 | 2022-09-29 | High-temperature-resistant bidirectional sealing ceramic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218326333U (en) |
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2022
- 2022-09-29 CN CN202222593275.3U patent/CN218326333U/en active Active
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