CN221075502U - Wear-resisting slag discharging valve of high chromium steel - Google Patents
Wear-resisting slag discharging valve of high chromium steel Download PDFInfo
- Publication number
- CN221075502U CN221075502U CN202323021509.8U CN202323021509U CN221075502U CN 221075502 U CN221075502 U CN 221075502U CN 202323021509 U CN202323021509 U CN 202323021509U CN 221075502 U CN221075502 U CN 221075502U
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- Prior art keywords
- chromium steel
- valve body
- valve
- flashboard
- runner
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 65
- 239000002893 slag Substances 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000013049 sediment Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 229910000669 Chrome steel Inorganic materials 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000203 accumulation affect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a high-chromium steel wear-resistant slag discharging valve, which belongs to the field of valves and comprises a valve body, a valve cover, a flashboard, a valve rod and a driving device, wherein a high-chromium steel sealing plate is fixedly arranged at one end of the flashboard, the inner wall of a valve body inlet flow passage is lined with a high-chromium steel layer, and an annular boss, which is arranged on the high-chromium steel layer and protrudes out of the valve body flow passage, is in sealing fit with the high-chromium steel sealing plate to form a sealing pair; the outer circular wall of the annular boss is sealed and sleeved with a high-chromium steel fixing frame; the outlet runner is opposite, the inner wall of the outlet runner is sealed and sleeved with a high-chromium steel sleeve with the same shape as the outlet runner, one end of the high-chromium steel sleeve, which is positioned in the middle cavity of the valve body, is provided with an axial boss protruding out of the inner wall of the valve body, and the upper end face of the axial boss is in contact with one end, far away from the sealing surface, of the flashboard.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a slag discharging gate valve.
Background
The slag discharge gate valve is generally used in dust and granular medium working conditions in the fields of thermal power generation, mines, metallurgy, chemical industry and the like, and sealing surfaces of a valve body and a flashboard are washed by medium grains in a pipeline medium for a long time, so that abrasion is easy to form, and the sealing performance is reduced. The anti-blocking wear-resistant slag discharge valve has the defects that because the flashboard is wedge-shaped, the valve body needs to be turned into the same inclination with the flashboard during processing, when the flashboard and the contact part of the valve body have errors during installation, the valve body needs to be integrally dismantled for processing, the valve body processing precision requirement is high, the disassembly and assembly are troublesome, and the inner wall of the valve body is easy to be worn under the long-term medium particle flushing to cause the integral functionality to be reduced.
Disclosure of Invention
The utility model aims to provide a wear-resistant and easy-to-process high-chromium steel wear-resistant slag discharge valve so as to solve the problems in the prior art.
The technical scheme of the utility model is as follows:
The utility model provides a wear-resisting slag discharging valve of high chromium steel, which comprises a valve body, the valve gap, the flashboard, valve rod and drive arrangement, the valve body includes left valve body and right valve body, left and right valve body passes through the bolt, nut fixed connection, set up import runner and export runner respectively in left valve body and the right valve body, be equipped with the valve body cavity in the valve body that can hold the flashboard, cavity bottom is equipped with the sediment chamber in the valve body, the one end that the sediment chamber is close to the export runner is equipped with radial step, flashboard upper end fixed connection valve rod, the valve rod passes valve gap connection drive arrangement, the valve gap passes through bolt, nut and valve body fixed connection, be equipped with packing seal device between valve rod and the valve gap, its characterized in that: one end of the flashboard is fixedly provided with a high-chromium steel sealing plate, the inner wall of the inlet flow passage of the valve body is lined with a high-chromium steel layer, the high-chromium steel layer is provided with an annular boss protruding out of the flow passage of the valve body, and the high-chromium steel sealing plate and the annular boss are in sealing fit to form a sealing pair; the outer circular wall of the annular boss is sealed and sleeved with a high-chromium steel fixing frame, the high-chromium steel fixing frame is L-shaped, the side surface of the fixing frame is provided with a through hole with the inner diameter identical to the outer diameter of the annular boss, the bottom surface of the fixing frame is fixed with the bottom surface of the slag discharging cavity in a sealing way, one end of the bottom surface of the fixing frame far away from the side edge is in contact with a radial step of the slag discharging cavity in a propping way, and the thickness of the bottom surface is identical to the height of the radial step; the inner diameter of the runner close to one end of the flange of the outlet runner is the same as that of the inlet runner, the inner diameter of the runner close to the middle cavity of the valve body is the distance from the upper end face of the radial step of the deslagging cavity to the inner wall of the runner at the upper end of the valve body, a wedge-shaped slope is arranged at the middle section of the outlet runner, the inner diameter of the runner is naturally connected from large to small by the wedge-shaped slope, a high-chromium steel sleeve with the same shape as that of the outlet runner is arranged in a sealing sleeve at the inner wall of the outlet runner, an axial boss protruding out of the inner wall of the valve body is arranged at one end of the middle cavity of the valve body, and the upper end face of the axial boss is in contact with one end of the flashboard far away from the sealing surface.
Preferably, the end face of the outlet runner flange is provided with an annular groove, and one end of the high-chromium steel sleeve is embedded in the annular groove.
Preferably, the high-chromium steel sealing plate is fixedly connected with the flashboard through a fastener, a hole for the fastener to pass through is formed in the high-chromium steel sealing plate, and a counter bore for covering the fastener is formed in the top end of the hole.
Compared with the prior art, the utility model has the beneficial effects that:
The high chromium steel layer is fully lined on the medium overflow part inside the valve body or is sleeved with the high chromium steel sleeve and the bracket, the flashboard is also fixedly connected with the high chromium steel sealing plate, and the hardness of the high chromium steel is utilized to improve the overall wear resistance and the service life of the valve; the bottom of the middle cavity of the valve body is provided with a slag discharging cavity, and the wedge-shaped slope of the outlet runner is used for connecting the slag discharging cavity with the runner outlet, so that medium impurity residues can be effectively discharged under the action of pipeline pressure, accumulation of medium impurities in the inner cavity of the valve body is reduced, and unsmooth opening and closing of the flashboard due to the influence of residue accumulation are avoided; the high-chromium steel sleeve is arranged in the outlet flow passage in a sealing manner, the axial boss of the high-chromium steel sleeve is in contact with the flashboard in a propping manner, and when the machining error of the flashboard and the axial boss occurs, the high-chromium steel sleeve is detached for machining and grinding, so that the operation is convenient.
Drawings
Fig. 1 is a schematic structural view of a wear-resistant slag discharging valve made of high-chromium steel.
In the figure: 1. A left valve body; 2. an inlet flow passage; 3. a high chromium steel sealing plate; 4. a high chromium steel layer; 5. an annular boss; 6. a valve cover; 7. a valve stem; 8. an axial boss; 9. a high chromium steel sleeve; 10. an outlet flow passage; 11. an annular groove; 12. a right valve body; 13. a radial step; 14. a flashboard; 15. a slag discharging cavity; 16. high chromium steel mount.
Detailed Description
The high-chromium steel wear-resistant slag discharging valve shown in fig. 1 comprises a valve body, a valve cover 6, a gate plate 14, a valve rod 7 and a driving device, wherein the valve body comprises a left valve body 1 and a right valve body 12, the left valve body and the right valve body are fixedly connected through bolts and nuts, an inlet runner 2 and an outlet runner 10 are respectively arranged in the left valve body 1 and the right valve body 12, a valve body middle cavity capable of containing the gate plate 14 is arranged in the valve body, a slag discharging cavity 15 is arranged at the bottom of the valve body middle cavity, one end of the slag discharging cavity 15, which is close to the outlet runner 10, is provided with a radial step 13, the upper end of the gate plate 14 is connected with the valve rod 7, the valve rod 7 penetrates through the valve cover 6 to be connected with the valve body fixedly through bolts and nuts, a packing sealing device is arranged between the valve rod 7 and the valve cover 6, one end of the gate plate 14 is fixedly provided with a high-chromium steel sealing plate 3, the inner wall of the valve body inlet runner 2 is lined with a high-chromium steel layer 4, the high-chromium steel layer 4 is provided with an annular boss 5 protruding from the valve body runner, the high-chromium steel sealing plate 3 and the annular boss 5 is matched with the annular boss 5 to form a sealing pair, the high-chromium steel sealing plate 3 is used as a gate plate, and the sealing surface is used as a gate plate, and the high-hardness material is high-hardness, and the high-hardness valve seat is improved; the outer circular surface of the annular boss 5 is sealed and sleeved with a high-chromium steel fixing frame 16, the high-chromium steel fixing frame 16 is L-shaped, a through hole with the inner diameter the same as the outer diameter of the annular boss 5 is formed in the side surface of the fixing frame, and the annular boss 5 is sleeved in the through hole, so that the annular boss 5 is more stable in the use process; the bottom surface of the high-chromium steel fixing frame 16 is in sealing connection with the bottom surface of the slag discharging cavity 15, one end, far away from the side surface, of the bottom surface of the high-chromium steel fixing frame 16 is in contact with the radial step 13 of the slag discharging cavity 15, the thickness of the bottom surface is the same as the height of the radial step 13, in the use process, ash falls into the slag discharging cavity 15 through the inlet flow passage 2, is driven by pipeline pressure to be flushed to the outlet flow passage 10 and then discharged, is not easy to accumulate at the bottom of the valve cavity, and reduces the phenomenon that the ash accumulation affects the opening and closing of the flashboard; the inner diameter of the runner near one end of the flange of the outlet runner 10 is the same as the inner diameter of the inlet runner 2, the inner diameter of the runner near the middle cavity of the valve body is the distance from the upper end face of the radial step 13 to the inner wall of the runner at the upper end of the valve body, the middle section of the outlet runner 10 is provided with a wedge-shaped slope, the inner diameter of the runner is naturally connected from big to small, the inner wall of the outlet runner 10 is sealed and sleeved with a high-chromium steel sleeve 9 with the same shape as the outlet runner 10, one end of the high-chromium steel sleeve 9, which is positioned at the middle cavity of the valve body, is provided with an axial boss 8 protruding from the inner wall of the valve body, the upper end face of the axial boss 8 is propped against one end of the flashboard 14 far away from the sealing surface, when errors exist in processing or wear occurs in the using process, the left and right valve bodies can be disassembled, the high-chromium steel sleeve 9 is taken out, and the end of the sleeve is processed, so that the valve precision is adjusted and controlled.
An annular groove 11 is formed in the end face of the outlet runner flange, one end of the high-chromium steel sleeve 9 is embedded in the annular groove 11, and stability of the high-chromium steel sleeve 9 is enhanced.
The high chrome steel sealing plate 3 is fixedly connected with the flashboard 14 through a fastener, a hole through which the fastener can pass is formed in the high chrome steel sealing plate 3, a counter bore for covering the fastener is formed in the top end of the hole, and when the high chrome steel sealing plate 3 is worn, the sealing plate can be replaced through removing the fastener, so that the convenience of disassembly, assembly and replacement is improved.
Claims (3)
1. The utility model provides a wear-resisting slag discharging valve of high chromium steel, which comprises a valve body, valve gap (6), flashboard (14), valve rod (7) and drive arrangement, the valve body includes left valve body (1) and right valve body (12), left side, right side valve body passes through the bolt, nut fixed connection, set up import runner (2) and export runner (10) respectively in left side valve body (1) and right side valve body (12), be equipped with in the valve body and hold the valve body cavity in flashboard (14), valve body cavity bottom is equipped with arranges sediment chamber (15), the one end that arranges sediment chamber (15) and be close to export runner (10) is equipped with radial step (13), flashboard (14) upper end fixed connection valve rod (7), valve rod (7) pass valve gap (6) and connect drive arrangement, valve gap (6) pass through bolt, nut and valve body fixed connection, be equipped with packing seal device between valve rod (7) and valve gap (6), its characterized in that: one end of the flashboard (14) is fixedly provided with a high-chromium steel sealing plate (3), the inner wall of the valve body inlet runner (2) is lined with a high-chromium steel layer (4), the high-chromium steel layer (4) is provided with an annular boss (5) protruding out of the valve body runner, and the high-chromium steel sealing plate (3) and the annular boss (5) are in sealing fit to form a sealing pair; the outer circular surface of the annular boss (5) is sealed and sleeved with a high-chromium steel fixing frame (16), the high-chromium steel fixing frame (16) is L-shaped, and the side surface of the high-chromium steel fixing frame (16) is provided with a through hole with the inner diameter identical to the outer diameter of the annular boss (5); the bottom surface of the high-chromium steel fixing frame (16) is in sealing connection with the bottom surface of the slag discharging cavity (15), one end of the bottom surface far away from the side surface is in propping contact with the radial step (13), and the thickness of the bottom surface is the same as the height of the radial step (13); the inner diameter of the flow channel close to one end of the flange of the outlet flow channel (10) is the same as the inner diameter of the inlet flow channel (2), the inner diameter of the flow channel close to the middle cavity of the valve body is the distance from the upper end surface of the radial step (13) to the inner wall of the flow channel at the upper end of the valve body, a wedge-shaped slope is arranged in the middle section of the outlet flow channel (10), a high-chromium steel sleeve (9) with the same shape as the outlet flow channel (10) is sleeved on the inner wall of the outlet flow channel (10), an axial boss (8) protruding out of the inner wall of the valve body is arranged at one end of the middle cavity of the valve body, and the upper end surface of the axial boss (8) is in propping contact with one end, far away from the high-chromium steel sealing plate (3), of the flashboard (14).
2. The high-chromium steel wear-resistant slag discharge valve as set forth in claim 1, wherein: an annular groove (11) is formed in the end face of the outlet runner flange, and one end of the high-chromium steel sleeve (9) is embedded in the annular groove (11).
3. The high-chromium steel wear-resistant slag discharge valve as set forth in claim 2, wherein: the high-chromium steel sealing plate (3) is fixedly connected with the flashboard (14) through a fastener, a hole through which the fastener can pass is formed in the high-chromium steel sealing plate (3), and a counter bore for covering the fastener is formed in the top end of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323021509.8U CN221075502U (en) | 2023-11-09 | 2023-11-09 | Wear-resisting slag discharging valve of high chromium steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323021509.8U CN221075502U (en) | 2023-11-09 | 2023-11-09 | Wear-resisting slag discharging valve of high chromium steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075502U true CN221075502U (en) | 2024-06-04 |
Family
ID=91258935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323021509.8U Active CN221075502U (en) | 2023-11-09 | 2023-11-09 | Wear-resisting slag discharging valve of high chromium steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075502U (en) |
-
2023
- 2023-11-09 CN CN202323021509.8U patent/CN221075502U/en active Active
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