CN209839207U - Upper-mounted ultrahigh-temperature ball valve - Google Patents
Upper-mounted ultrahigh-temperature ball valve Download PDFInfo
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- CN209839207U CN209839207U CN201920077592.5U CN201920077592U CN209839207U CN 209839207 U CN209839207 U CN 209839207U CN 201920077592 U CN201920077592 U CN 201920077592U CN 209839207 U CN209839207 U CN 209839207U
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Abstract
A unique sealing structure of a valve seat and a valve body replaces graphite sealing, so that the problem of high-temperature oxidation of graphite sealing is solved, and the problem of a common spring in an ultrahigh-temperature state is solved; the boss is ingeniously designed to fix the valve seat and the pre-tightening valve seat so as to achieve sealing pre-tightening specific pressure, the problem that the ball body is pushed by the expansion of the high-temperature lengthened valve cover and the valve rod is solved through the design of the ingenious limiting cap, and the problem of blockage of particles and powder is solved through the purging of the valve in the closed and fully-open states; the jacket water cooling design solves the problem of valve body strength when the temperature is abnormally increased to 1000 ℃, increases safety guarantee and solves the problem of blocking of valve thermal expansion.
Description
Technical Field
The utility model particularly relates to a high temperature valve technical field, concretely relates to facial make-up ultra-high temperature ball valve.
Background
The utility model discloses a facial make-up ultra-temperature ball valve is the switching valve to the design of the reaction boiler top export of titanium white powder trade, because the valve of this usage is in 800 ℃'s operating temperature for a long time, the temperature can rise to about 1000 ℃ when unstable occasionally. The temperature is quite high, the material and the structure of the valve are greatly tested, the ball is over-expanded due to the high temperature, so that the ball and the valve seat are expanded and clamped, the valve rod is expanded and extended, the valve rod and the ball are expanded and clamped, the valve is broken down, the use is influenced, the existing valve can meet the high temperature, the sealing and the abrasion resistance are needed, the working condition valve manufactured by manufacturers in the industry can be used, and the working condition valve can be quickly clamped, cannot be opened and closed, and has great influence on the production.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art. The utility model provides a top-mounted ultra-high temperature ball valve, which fully considers the problem of high temperature expansion jamming in structure, solves the jamming problem caused by expansion of a valve seat and a ball body through the unique design of a valve seat assembly, and solves the problem of graphite sealing high temperature oxidation by replacing graphite sealing with a unique sealing structure of the valve seat and a valve body, and simultaneously solves the problem of a common spring in an ultra-high temperature state; the boss is ingeniously designed to fix the valve seat and the pre-tightening valve seat, so that sealing pre-tightening specific pressure is achieved.
The utility model discloses a technical solution be: a top-mounted ultra-high temperature ball valve comprises a valve body, wherein a ball body is arranged in the valve body, a valve seat is further arranged between the valve body, the valve seat is in sealing fit with the ball body, a valve cover is arranged on the upper portion of the valve body, a valve rod is arranged on the valve cover, the tail end of the valve rod is in transmission fit with the ball body, an operating mechanism is further arranged at the top of the valve rod and consists of a worm gear mechanism, a mounting boss is further arranged on the flow channel wall of the valve body on the outer side of the valve seat, a metal elastic sealing ring is further arranged between the mounting boss and the valve seat, a pre-tightening screw is arranged on the mounting boss and acts on a cantilever of the metal elastic sealing ring to push the metal elastic sealing ring, the metal elastic sealing ring pushes the valve seat to seal the valve seat and the ball body, a sealing pre-tightening pressure is achieved, and, the fastening screw passes through the unthreaded hole of the metal elastic sealing ring and then is in threaded connection with the threaded hole of the valve seat, the valve seat and the metal elastic sealing ring are connected and fastened on the mounting boss through the combined action of the fastening screw and the pre-tightening screw, the sealing ring is in a sealing state, and the stress of the metal elastic sealing ring can enable the cantilever acting with the pre-tightening screw to generate micro deformation.
The two end parts of the metal elastic sealing ring are in hard sealing fit with the wedge surfaces between the valve seat and the valve body.
The valve cover is provided with a long neck, the valve rod is positioned in the long neck, and the long neck is provided with a plurality of radiating fins.
The valve cover on be equipped with and sweep and wash the interface, the bottom of valve body be equipped with down sweep and wash the interface, last sweep and wash the interface or sweep down and wash the interface and be connected with and sweep the mechanism and realize blowing out the granule and the powder that will deposit in the valve body cavity down, prevent to block up the jam and hinder.
The outer side of the valve body is also provided with a water-cooling jacket, and the water-cooling jacket is provided with a valve water-cooling connector.
The bottom of the inner side of the valve cover is also provided with a limiting cap, the tail end of the valve rod is also provided with a limiting boss, and the limiting boss and the limiting cap are in limiting fit to prevent the valve rod from being heated and being expanded and clamped between the ball body and the ball body to be dead.
The inboard bottom downwardly extending of valve gap form protruding structure, spacing cap pass through the screw thread and install on protruding structure and through spot welding locking.
The valve rod on the lower side of the limiting cap is also provided with a connecting end, the valve rod is in transmission fit with the ball body through the connecting end, and an expansion buffer gap exists between the connecting end and the ball body.
The utility model has the advantages that: the utility model provides a top-mounted ultra-high temperature ball valve, which has a unique valve seat and valve body sealing structure to replace graphite sealing, solves the problem of graphite sealing high-temperature oxidation, and solves the problem of common springs in ultra-high temperature state; the boss is ingeniously designed to fix the valve seat and the pre-tightening valve seat so as to achieve sealing pre-tightening specific pressure, the problem that the ball body is pushed by the expansion of the high-temperature lengthened valve cover and the valve rod is solved through the design of the ingenious limiting cap, and the problem of blockage of particles and powder is solved through the purging of the valve in the closed and fully-open states; the jacket water cooling design solves the problem of valve body strength when the temperature is abnormally increased to 1000 ℃, increases safety guarantee and solves the problem of blocking of valve thermal expansion.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
In the figure, 1-a valve body, 2-a ball body, 3-a valve seat, 4-a valve cover, 5-a valve rod, 6-an operating mechanism, 7-a metal elastic sealing ring, 8-a valve water cooling interface, 9-a limiting cap, 11-a mounting boss, 12-a pre-tightening screw, 13-a fastening screw, 14-a lower sweeping and flushing interface, 41-a long neck, 42-a radiating fin, 43-an upper sweeping and flushing interface, 51-a limiting boss, 52-a connecting end and 53-an expansion buffer gap.
Detailed Description
In order to clearly understand the technical contents of the present invention, the following embodiments are specifically illustrated in detail.
As shown in fig. 1 and 2, the upper-mounted ultrahigh-temperature ball valve comprises a valve body 1, wherein a ball body 2 is arranged in the valve body 1, a valve seat 3 is further arranged between the valve body 1, the valve seat 3 is in sealing fit with the ball body 2, a valve cover 4 is arranged on the upper portion of the valve body 1, a valve rod 5 is arranged on the valve cover 4, the tail end of the valve rod 5 is in transmission fit with the ball body 2, an operating mechanism 6 is further arranged at the top of the valve rod 5, the operating mechanism 6 is composed of a worm gear mechanism, an installation boss 11 is further arranged on the flow channel wall of the valve body 1 outside the valve seat 3, a metal elastic sealing ring 7 is further arranged between the installation boss 11 and the valve seat 3, and two end portions of the metal elastic sealing ring 7 are in hard sealing fit with the valve seat 3 and the wedge surface between. The installation boss 11 is provided with a pre-tightening screw 12, the pre-tightening screw 12 acts on a cantilever of the metal elastic sealing ring 7 to push the metal elastic sealing ring 7, the metal elastic sealing ring 7 pushes the valve seat 3 to seal the valve seat 3 with the ball 2 and achieve a sealing pre-tightening specific pressure, the installation boss 11 is further provided with a fastening screw 13, the fastening screw 13 passes through a unthreaded hole of the metal elastic sealing ring 7 and then is in threaded connection with a threaded hole of the valve seat 3, the valve seat 3 and the metal elastic sealing ring 7 are connected and fastened on the installation boss 11 through the combined action of the fastening screw 13 and the pre-tightening screw, the sealing ring is in a sealing state, and the cantilever acting on the pre-tightening screw 12 can be slightly deformed by the stress of the metal elastic sealing ring 7. When the valve is heated to a high-temperature state, if the internal part is in the expansion inconsistency caused by the temperature rise inconsistency of the valve body, the general ball body can be expanded to press the valve seat, the valve seat pushes the elastic sealing ring, and the cantilever is pushed by the pre-tightening screw to deform slightly on the cantilever of the elastic sealing ring, so that the problem of over-force caused by uneven expansion is solved, and the problem of blocking resistance of thermal expansion is solved. The utility model fully considers the problem of high temperature expansion blocking in structure, the ingenious design of the limiting cap solves the problem that the ball body is blocked by the expansion of the high temperature lengthened valve cover and the valve rod, the unique design of the valve seat assembly solves the blocking problem caused by the expansion of the valve seat and the ball body, the unique valve seat and valve body sealing structure adopts the metal elastic sealing ring to replace graphite sealing, the problem of graphite sealing high temperature oxidation is solved, and the problem of common spring in an ultra-high temperature state is solved; the boss is ingeniously designed to fix the valve seat and the pre-tightening valve seat, so that sealing pre-tightening specific pressure is achieved.
The valve cover 4 is provided with a long neck 41, the valve rod 5 is positioned in the long neck 41 to prevent the valve rod packing from high-temperature oxidation failure, and the long neck 41 is provided with a plurality of radiating fins 42 to ensure that the valve rod packing operates below the oxidation temperature.
The valve cover 4 is provided with an upper purging and flushing port 43, the bottom of the valve body 1 is provided with a lower purging and flushing port 14, and the upper purging and flushing port 43 or the lower purging and flushing port 14 is connected with a purging mechanism to blow out particles and powder precipitated in the cavity of the valve body 1, so that blockage and blockage are prevented. The reason that the phenomenon of locking of valve appears is also because reaction top valve, and the medium can be brought into certain slag and granule by reaction liquid and gas, and this can block up the lumen of ball valve to a certain extent, so we have designed the valve and have been in the purging device when opening or the totally closed position entirely, and the gas of access purging blows off the granule and the powder that will deposit in the lumen, prevents to block up the jam.
The outer side of the valve body 1 is also provided with a water-cooling jacket, and the water-cooling jacket is provided with a valve water-cooling connector 8. The condition that the temperature is increased to about 1000 ℃ occasionally and abnormally under the working condition can occur, so that the problem that the strength of the valve body is reduced under the overhigh temperature is avoided, a jacket is additionally arranged on the valve body, and circulating water is used for carrying out proper temperature reduction treatment, so that the valve body can be better used.
The inboard bottom of valve gap 4 still be equipped with spacing cap 9, the end of valve rod 5 still be equipped with spacing boss 51, spacing boss 51 and the spacing cooperation of spacing cap 9 prevent that valve rod 5 is heated and expand the card to dying to 2 directions extensions of spheroid and spheroid 2 within a definite time. The bottom of the inner side of the valve cover 4 extends downwards to form a protruding structure, and the limiting cap 9 is installed on the protruding structure and connected through spot welding. The valve is at a high temperature of above 800 ℃, the high-temperature expansion of each part is inconsistent to cause the jamming, one of the jamming sources is from the extension of the valve rod at the high temperature to cause the valve rod to prop against the ball, the temperature of the valve rod is raised to 800 ℃ from the normal temperature, and the extension amount of the valve rod is quite large (generally, the length of the rod of a metal material is 1 mm when the temperature is raised to 100 ℃ and the length of the rod is 1 m). Prevent the influence of valve rod extension, the utility model designs a spacing cap, the extension direction that makes the valve rod is to worm wheel transmission direction, and the lower part is withstood by spacing cap and can not extend. The part of the valve rod below the limiting cap is short, and the extension amount is small.
The valve rod 5 at the lower side of the limit cap 9 is also provided with a connecting end 52, the valve rod 5 is in transmission fit with the sphere 2 through the connecting end 52, and an expansion buffer gap 53 is formed between the connecting end 52 and the sphere 2. The utility model discloses again through the link 52 at the valve rod and the spheroid junction designed the inflation buffering clearance, left the buffering surplus for the thermal expansion between link and the spheroid.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The upper-mounted ultrahigh-temperature ball valve comprises a valve body (1), wherein a ball body (2) is arranged in the valve body (1), a valve seat (3) is further arranged between the valve body (1), the valve seat (3) and the ball body (2) are in sealing fit, a valve cover (4) is arranged on the upper portion of the valve body (1), a valve rod (5) is arranged on the valve cover (4), the tail end of the valve rod (5) is in transmission fit with the ball body (2), an operating mechanism (6) is further arranged at the top of the valve rod (5), the operating mechanism (6) is composed of a turbine mechanism, and the upper-mounted ultrahigh-temperature ball valve is characterized in that a mounting boss (11) is further arranged on the flow channel wall of the valve body (1) outside the valve seat (3), a metal elastic sealing ring (7) is further arranged between the mounting boss (11) and the valve seat (3), and a screw (12) is arranged on the mounting, pretension screw (12) promote metal elastic sealing ring (7) on the cantilever of metal elastic sealing ring (7), metal elastic sealing ring (7) promote disk seat (3), make disk seat (3) sealed with spheroid (2) to reach sealed pretension specific pressure, installation boss (11) be equipped with and still be equipped with fastening screw (13), fastening screw (13) and metal elastic sealing ring (7) and disk seat (3) between through screw hole threaded connection, connect fastening on installation boss (11) disk seat (3) and metal elastic sealing ring (7) through fastening screw (13), and make the sealing ring be in encapsulated situation, metal elastic sealing ring (7) atress can make the cantilever of pretension screw (12) effect take place to deform.
2. The upper-mounted ultrahigh-temperature ball valve as claimed in claim 1, wherein two end parts of the metal elastic sealing ring (7) are in hard sealing fit with wedge surfaces between the valve seat (3) and the valve body (1).
3. The upper-mounted ultrahigh-temperature ball valve as recited in claim 1, characterized in that the valve cover (4) is provided with a long neck (41), the valve rod (5) is positioned in the long neck (41), and the long neck (41) is provided with a plurality of cooling fins (42).
4. The upper-mounted ultrahigh-temperature ball valve according to claim 1, characterized in that an upper purging flushing port (43) is arranged on the valve cover (4), a lower purging flushing port (14) is arranged at the bottom of the valve body (1), and the upper purging flushing port (43) or the lower purging flushing port (14) is connected with a purging mechanism to blow out particles and powder precipitated in a cavity in the valve body (1) so as to prevent blockage.
5. The upper-mounted ultrahigh-temperature ball valve according to claim 1, characterized in that a water-cooling jacket is further arranged on the outer side of the valve body (1), and a valve water-cooling connector (8) is arranged on the water-cooling jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920077592.5U CN209839207U (en) | 2019-01-17 | 2019-01-17 | Upper-mounted ultrahigh-temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920077592.5U CN209839207U (en) | 2019-01-17 | 2019-01-17 | Upper-mounted ultrahigh-temperature ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN209839207U true CN209839207U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920077592.5U Active CN209839207U (en) | 2019-01-17 | 2019-01-17 | Upper-mounted ultrahigh-temperature ball valve |
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| CN (1) | CN209839207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681662A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | Upper dress superhigh temperature ball valve |
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2019
- 2019-01-17 CN CN201920077592.5U patent/CN209839207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681662A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | Upper dress superhigh temperature ball valve |
| CN109681662B (en) * | 2019-01-17 | 2024-04-23 | 宣达实业集团有限公司 | Top-mounted ultra-high temperature ball valve |
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