CN109681662B - Top-mounted ultra-high temperature ball valve - Google Patents
Top-mounted ultra-high temperature ball valve Download PDFInfo
- Publication number
- CN109681662B CN109681662B CN201910044043.2A CN201910044043A CN109681662B CN 109681662 B CN109681662 B CN 109681662B CN 201910044043 A CN201910044043 A CN 201910044043A CN 109681662 B CN109681662 B CN 109681662B
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- China
- Prior art keywords
- valve
- high temperature
- still
- ball
- valve rod
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010926 purge Methods 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910002804 graphite Inorganic materials 0.000 abstract description 8
- 239000010439 graphite Substances 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- 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
- F16K49/00—Means in or on valves for heating or cooling
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The upper-mounted ultra-high temperature ball valve has the advantages that the unique sealing structure of the valve seat and the valve body replaces graphite sealing, so that the problem of high-temperature oxidation of the graphite sealing is solved, and meanwhile, the problem of a common spring in an ultra-high temperature state is solved; the boss is skillfully designed, the valve seat and the pre-tightening valve seat are fixed, the sealing pre-tightening specific pressure is achieved, the problem that a high Wen Jiachang valve cover and a valve rod expand to prop up a dead ball body is solved through the design of the skillfully designed limiting cap, the valve is closed and the purging in the full-open state is carried out, and the problem of blockage of particles and powder is solved; the jacket water cooling design solves the problem of valve body strength when the temperature is abnormally raised to 1000 ℃, increases safety guarantee, and solves the problem of blockage of thermal expansion of the valve.
Description
Technical Field
The invention particularly relates to the technical field of high-temperature valves, in particular to an upper-mounted ultra-high-temperature ball valve.
Background
The invention relates to an upper-mounted ultra-high temperature ball valve, which is a switch valve designed for an outlet at the top of a reaction boiler in the titanium dioxide industry, and the temperature can be raised to about 1000 ℃ when the valve is unstable occasionally because the valve for the application is at the working temperature of 800 ℃ for a long time. The temperature is quite high, the materials and the structure of the valve are greatly tested, the ball is easy to be expanded and clamped between the ball and the valve seat due to over expansion of the ball caused by high temperature, and the valve rod is expanded and stretched, so that the valve is expanded and clamped between the valve rod and the ball, thereby causing the valve to malfunction and affecting the use.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art. The invention provides an upper-mounted ultra-high temperature ball valve, which fully considers the problem of high-temperature expansion blocking structurally, solves the problem of blocking caused by valve seat and sphere expansion through a unique valve seat assembly design, and solves the problem of graphite sealing high-temperature oxidation and the problem of common springs in an ultra-high temperature state through a unique valve seat and valve body sealing structure instead of graphite sealing; the boss is skillfully designed, the valve seat is fixed, and the pre-tightening valve seat is pre-tightened to achieve sealing pre-tightening specific pressure.
The technical scheme adopted by the invention is as follows: the utility model provides an upper mounting superhigh temperature ball valve, includes the valve body, the valve body in be equipped with the spheroid, the valve body between still be equipped with the disk seat, disk seat and spheroid between sealed cooperation, the upper portion of valve body be equipped with the valve gap, the valve gap on be equipped with the valve rod, the terminal and the spheroid transmission cooperation of valve rod, the top of valve rod still be equipped with operating device, operating device constitute by worm gear mechanism, the runner wall of the valve body in the disk seat outside on still be equipped with the installation boss, installation boss and disk seat between still be equipped with metal elastic seal ring, the installation boss be equipped with pretension screw, pretension screw effect promote metal elastic seal ring on metal elastic seal ring's cantilever, metal elastic seal ring promotes the disk seat to make disk seat and spheroid seal to reach sealed pretension specific pressure, the installation boss be equipped with fastening screw again, fastening screw pass through the unthreaded hole threaded connection of metal elastic seal ring with the disk seat, with valve seat and metal elastic seal ring pass through fastening screw and pretension combined action with it connect fastening on the installation boss to make and make be in sealed state, metal elastic seal ring and pretension ring's cantilever can take place the deformation.
The two ends of the metal elastic sealing ring are in hard sealing fit with the wedge surface between the valve seat and the valve body.
The valve cover on be equipped with the long neck, the valve rod be located the long neck, the long neck on be equipped with a plurality of fin.
The valve cover on be equipped with and sweep and wash the interface, the bottom of valve body be equipped with down and sweep and wash the interface, go up and sweep and wash the interface or sweep down and wash the interface and be connected with and sweep the mechanism and realize blowing off granule and powder that will deposit in the valve body cavity, prevent to block up the card and hinder.
The outside of the valve body is also provided with a water cooling jacket, and the water cooling jacket is provided with a valve water cooling interface.
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 to extend towards the direction of the ball body and from being blocked by expansion between the ball bodies.
The bottom of the inner side of the valve cover extends downwards to form a protruding structure, and the limiting cap is arranged on the protruding structure through threads and is loose-proof through spot welding.
The valve rod of limit cap downside on still be equipped with the link, the valve rod pass through link and spheroid transmission cooperation, link and spheroid between have the inflation buffering clearance.
The beneficial effects of the invention are as follows: the invention provides an upper-mounted ultra-high temperature ball valve, wherein a unique valve seat and valve body sealing structure replaces graphite sealing, so that the problem of high-temperature oxidation of graphite sealing is solved, and meanwhile, the problem of a common spring in an ultra-high temperature state is solved; the boss is skillfully designed, the valve seat and the pre-tightening valve seat are fixed, the sealing pre-tightening specific pressure is achieved, the problem that a high Wen Jiachang valve cover and a valve rod expand to prop up a dead ball body is solved through the design of the skillfully designed limiting cap, the valve is closed and the purging in the full-open state is carried out, and the problem of blockage of particles and powder is solved; the jacket water cooling design solves the problem of valve body strength when the temperature is abnormally raised to 1000 ℃, increases safety guarantee, and solves the problem of blockage of thermal expansion of the valve.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic side view of the present invention.
In the figure, the valve body is 1-, the ball body is 2-, the valve seat is 3-, the valve cover is 4-, the valve rod is 5-, the operating mechanism is 6-, the elastic sealing ring is 7-metal, the valve water cooling interface is 8-, the limiting cap is 9-, the installation boss is 11-, the pretension screw is 12-, the fastening screw is 13-, the purging flushing interface is 14-lower, the long neck is 41-42-cooling fin is 43-upper, the purging flushing interface is 51-limiting boss is 52-connecting end, and the buffering gap is 53-expansion.
Detailed Description
In order to make the technical contents of the present invention more clearly understood, the following examples are specifically described.
As shown in fig. 1 and 2, an upper-mounted ultra-high 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 bodies 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 consists of a worm gear mechanism, an installation boss 11 is further arranged on the flow passage 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 ends of the metal elastic sealing ring 7 are in hard sealing fit with the valve seat 3 and a wedge surface between the valve body 1. The installation boss 11 be equipped with pretension screw 12, pretension screw 12 effect promote metal elastic seal ring 7 on the cantilever of metal elastic seal ring 7, metal elastic seal ring 7 promotes disk seat 3, makes disk seat 3 and spheroid 2 seal to reach sealed pretension specific pressure, installation boss 11 be equipped with still be equipped with fastening screw 13, fastening screw 13 pass through the unthreaded hole of metal elastic seal ring 7 back again with the screw hole threaded connection of disk seat 3, with disk seat 3 and metal elastic seal ring 7 through fastening screw 13 and pretension screw combined action with its connection fastening on installation boss 11, and make the sealing ring be in sealed state, metal elastic seal ring 7 atress can make the cantilever with pretension screw 12 effect take place the micro deformation. When the valve is heated to a high temperature state, if the internal part is in expansion inconsistency caused by inconsistent temperature rising of the valve body, the ball body is expanded excessively to press the valve seat, the valve seat pushes the elastic sealing ring, and as the pretension screw pushes the cantilever of the elastic sealing ring, the cantilever can deform slightly to counteract the over-force problem caused by uneven expansion, so that the problem of blockage caused by thermal expansion is solved. The invention fully considers the problem of high-temperature expansion blocking structurally, the ingenious limit cap design solves the problem of dead ball body of the high Wen Jiachang valve cover and valve rod expansion top, the unique valve seat assembly design solves the problem of blocking caused by valve seat and ball expansion, the unique valve seat and valve body sealing structure adopts a 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 skillfully designed, the valve seat is fixed, and the pre-tightening valve seat is pre-tightened to achieve sealing pre-tightening specific pressure.
The valve cover 4 on be equipped with the long neck 41, valve rod 5 be located long neck 41, prevent that valve rod packing from appearing high temperature oxidation failure, long neck 41 on be equipped with a plurality of fin 42, guarantee the valve rod packing and move below the oxidation temperature.
The valve cover 4 on be equipped with and sweep and wash interface 43, the bottom of valve body 1 be equipped with down and sweep and wash interface 14, last sweep and wash interface 43 or down sweep and wash interface 14 and be connected with the mechanism of sweeping and realize blowing off granule and powder that will deposit in the cavity in valve body 1, prevent to block up the card and hinder. The reason that the blocking phenomenon of the valve appears is also because the valve at the top of the reaction, the medium can be brought into certain slag and particles by reaction liquid and gas, and the medium can block the middle cavity of the ball valve to a certain extent, so that a purging device is designed when the valve is at a full-open or full-closed position, purging gas is connected, particles and powder deposited in the middle cavity are blown out, and blocking is prevented.
The outside 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 interface 8. The condition that the temperature is increased to about 1000 ℃ accidentally occurs due to working conditions, so that the problem of strength reduction of the valve body at an excessive temperature is avoided, a jacket is additionally arranged on the valve body, and circulating water is used for proper cooling treatment, so that better use is achieved.
The bottom of valve gap 4 inboard still be equipped with spacing cap 9, the end of valve rod 5 still be equipped with spacing boss 51, spacing boss 51 and spacing cooperation of spacing cap 9 prevent that valve rod 5 from being heated to the extension of spheroid 2 direction and the expansion card between spheroid 2 die. The bottom of the inner side of the valve cover 4 extends downwards to form a protruding structure, and the limiting cap 9 is arranged on the protruding structure and is connected through spot welding. The valve is at a high temperature above 800 ℃, the blockage is caused by inconsistent high-temperature expansion of each part, one of the blockage sources is from the extension of the valve rod at a high temperature, so that the valve rod is propped against the ball body, the temperature of the valve rod is increased from normal temperature to 800 ℃, and the extension of the valve rod is quite large (generally, the length of the valve rod is 1 millimeter when the metal material is increased by 1 meter every 100 ℃). The invention designs the limit cap to prevent the influence of the extension of the valve rod, so that the extension direction of the valve rod is towards the worm gear transmission direction, and the lower part of the valve rod is propped by the limit cap and cannot be extended. The valve rod below the limit cap is short, and the elongation 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 ball body 2 through the connecting end 52, and an expansion buffer gap 53 exists between the connecting end 52 and the ball body 2. The expansion buffer clearance is designed at the joint of the connecting end 52 of the valve rod and the ball body, so that buffer allowance is reserved for thermal expansion between the connecting end and the ball body.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus 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 invention. Furthermore, the terms "first," "second," and the like, 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 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 invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides an upper-mounted ultra-high temperature ball valve, includes valve body (1), valve body (1) in be equipped with spheroid (2), valve body (1) between still be equipped with disk seat (3), disk seat (3) and spheroid (2) between sealed cooperation, the upper portion of valve body (1) be equipped with valve gap (4), valve gap (4) on be equipped with valve rod (5), the terminal of valve rod (5) and spheroid (2) transmission cooperation, the top of valve rod (5) still be equipped with operating device (6), operating device (6) comprise worm gear, characterized in that, the runner wall of valve body (1) in the disk seat (3) outside on still be equipped with installation boss (11), installation boss (11) and disk seat (3) between still be equipped with metal elastic sealing ring (7), installation boss (11) be equipped with pretension screw (12), pretension screw (12) act on metal elastic sealing ring (7), metal elastic sealing ring (7) promote metal elastic sealing ring (3) drive cooperation, valve seat (3) comprise worm gear, the runner wall of disk seat (3) outside still be equipped with installation boss (11) than the seal cap (13), the utility model provides a valve seat, valve gap (4) inboard bottom still be equipped with spacing cap (9), the end of valve rod (5) still be equipped with spacing boss (51), spacing boss (51) and spacing cap (9) spacing cooperation prevent valve rod (5) be heated to ball (2) direction extension and ball (2) between expansion card and die, metal elastic sealing ring (7) atress can take place micro deformation with the cantilever of pretension screw (12) effect, metal elastic sealing ring (7) both ends and valve seat (3) and valve body (1) between wedge face hard seal cooperation, valve seat (4) inboard bottom still be equipped with spacing cap (9), the end of valve rod (5) still be equipped with spacing boss (51), spacing cooperation with spacing cap (9).
2. The upper ultra-high temperature ball valve according to claim 1, wherein 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).
3. The upper ultra-high temperature ball valve according to claim 1, wherein the valve cover (4) is provided with an upper purging flushing interface (43), the bottom of the valve body (1) is provided with a lower purging flushing interface (14), and the upper purging flushing interface (43) or the lower purging flushing interface (14) is connected with a purging mechanism to blow out particles and powder deposited in a cavity of the valve body (1) so as to prevent blockage.
4. The upper-mounted ultra-high temperature ball valve according to claim 1, wherein a water cooling jacket is further arranged on the outer side of the valve body (1), and a valve water cooling interface (8) is arranged on the water cooling jacket.
5. The upper-mounted ultra-high temperature ball valve according to claim 1, wherein the bottom of the inner side of the valve cover (4) extends downwards to form a convex structure, and the limit cap (9) is arranged on the convex structure through threads and is loose-proof through spot welding.
6. The upper ultra-high temperature ball valve according to claim 1, wherein the valve rod (5) at the lower side of the limit cap (9) is further provided with a connecting end (52), the valve rod (5) is in transmission fit with the ball body (2) through the connecting end (52), and an expansion buffer gap (53) is formed between the connecting end (52) and the ball body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044043.2A CN109681662B (en) | 2019-01-17 | 2019-01-17 | Top-mounted ultra-high temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044043.2A CN109681662B (en) | 2019-01-17 | 2019-01-17 | Top-mounted ultra-high temperature ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681662A CN109681662A (en) | 2019-04-26 |
| CN109681662B true CN109681662B (en) | 2024-04-23 |
Family
ID=66193454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910044043.2A Active CN109681662B (en) | 2019-01-17 | 2019-01-17 | Top-mounted ultra-high temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681662B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208622A (en) * | 1994-01-28 | 1995-08-11 | Mitsubishi Heavy Ind Ltd | Ball valve |
| CN102678959A (en) * | 2012-05-10 | 2012-09-19 | 天津百利展发集团有限公司 | Ball valve device special for powder, ash and slag system |
| CN102829210A (en) * | 2012-08-22 | 2012-12-19 | 福建菲达阀门有限公司 | High-temperature discharging valve |
| CN202867909U (en) * | 2012-10-05 | 2013-04-10 | 上海神通企业发展有限公司 | Residue and hopper locking valve with blowing and flushing devices for coal chemical industry |
| CN103335121A (en) * | 2013-07-15 | 2013-10-02 | 天津百利展发集团有限公司 | Automatic compensation butterfly valve |
| CN204852429U (en) * | 2015-07-22 | 2015-12-09 | 雷蒙德(北京)科技股份有限公司 | High temperature ball valve |
| CN206145170U (en) * | 2016-07-29 | 2017-05-03 | 上海弘盛特种阀门制造有限公司 | Soft and hard sealing type ball valve |
| CN207961583U (en) * | 2017-12-01 | 2018-10-12 | 湖北高中压阀门有限责任公司 | A kind of wear-resisting semisphere valve of large scale sealed with disc spring and tandem compound |
| CN109681663A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | Upper dress superhigh temperature ball valve with high temperature-proof expansion card resistance structure |
| CN209839207U (en) * | 2019-01-17 | 2019-12-24 | 宣达实业集团有限公司 | Upper-mounted ultrahigh-temperature ball valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208622A (en) * | 1995-11-27 | 1997-08-12 | Kanegafuchi Chem Ind Co Ltd | Preparation of isobutylene polymer having functional group |
-
2019
- 2019-01-17 CN CN201910044043.2A patent/CN109681662B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208622A (en) * | 1994-01-28 | 1995-08-11 | Mitsubishi Heavy Ind Ltd | Ball valve |
| CN102678959A (en) * | 2012-05-10 | 2012-09-19 | 天津百利展发集团有限公司 | Ball valve device special for powder, ash and slag system |
| CN102829210A (en) * | 2012-08-22 | 2012-12-19 | 福建菲达阀门有限公司 | High-temperature discharging valve |
| CN202867909U (en) * | 2012-10-05 | 2013-04-10 | 上海神通企业发展有限公司 | Residue and hopper locking valve with blowing and flushing devices for coal chemical industry |
| CN103335121A (en) * | 2013-07-15 | 2013-10-02 | 天津百利展发集团有限公司 | Automatic compensation butterfly valve |
| CN204852429U (en) * | 2015-07-22 | 2015-12-09 | 雷蒙德(北京)科技股份有限公司 | High temperature ball valve |
| CN206145170U (en) * | 2016-07-29 | 2017-05-03 | 上海弘盛特种阀门制造有限公司 | Soft and hard sealing type ball valve |
| CN207961583U (en) * | 2017-12-01 | 2018-10-12 | 湖北高中压阀门有限责任公司 | A kind of wear-resisting semisphere valve of large scale sealed with disc spring and tandem compound |
| CN109681663A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | Upper dress superhigh temperature ball valve with high temperature-proof expansion card resistance structure |
| CN209839207U (en) * | 2019-01-17 | 2019-12-24 | 宣达实业集团有限公司 | Upper-mounted ultrahigh-temperature ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109681662A (en) | 2019-04-26 |
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