CN202597745U - High-temperature high-pressure gate valve with universal positioning gate disc component - Google Patents
High-temperature high-pressure gate valve with universal positioning gate disc component Download PDFInfo
- Publication number
- CN202597745U CN202597745U CN 201220163602 CN201220163602U CN202597745U CN 202597745 U CN202597745 U CN 202597745U CN 201220163602 CN201220163602 CN 201220163602 CN 201220163602 U CN201220163602 U CN 201220163602U CN 202597745 U CN202597745 U CN 202597745U
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- gate
- flashboard
- plunger tip
- valve
- spherical surface
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- Expired - Fee Related
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Abstract
The utility model relates to a high-temperature high-pressure gate valve with a universal positioning gate disc component. The gate valve comprises a valve body, a valve rod and the gate disc component, and is characterized in that the gate disc component comprises a left gate disc, a right gate disc, a left ejection core and a right ejection core, wherein the left and right ejection cores are arranged on the inner lateral surfaces of the left and right gate discs respectively; the left ejection core has a concave spherical surface structure with a central positioning hole; the right ejection core has a convex spherical surface structure with a central cylindrical bump; the convex spherical surface of the right ejection core is tightly attached to the concave spherical surface of the left ejection core; and the central cylindrical bump of the convex spherical surface is embedded into the central positioning hole of the left ejection core. When the gate valve is opened and closed, the central cylindrical bump at the left end of the right ejection core is inserted into the positioning hole of the left ejection core, so that the left and right gate discs synchronously move up and down without displacement and drop, an upper clamping plate and a lower clamping plate are not required to be arranged for fixation, and the structure of the gate valve is simplified; and if a valve seat surface has a machining error, the gate discs can automatically rotate through the free rotating structures of the left and right ejection cores to automatically compensate the error of the valve seat surface, so that the goodness of fit between the sealing surfaces of the gate discs and the valve seat is ensured.
Description
Technical field
The utility model relates to a kind of HTHP gate valve, particularly a kind of simple in structure, HTHP gate valve with universal location flashboard assembly that requirement on machining accuracy is low.
Background technique
The high temperature high pressure large caliber electric gate valve is mainly used in major steam line system of power plant and main feed system, is used for the opening and closing of pilot line, realizes the controlled operation of unit.Its quality and reliability is maintaining the safety and efficiency of unit, is power plant's critical valves equipment.
The main dependence on import of existing this kind equipment is generally the design of wedge-type double-flashboard, comprises clamp plate type double-flashboard and slotting rotating double-flashboard structure up and down.Its shortcoming is: the clamp plate type double-flashboard need be provided with clamping plate and fixes two flashboards up and down, and part is more, the assembling difficulty, and stem lower portion screw thread position easy-rupturing, there is the possibility that comes off in flashboard; And insert rotating double-flashboard accuracy of manufacturing is had relatively high expectations, and valve rod is connected on the flashboard seat, paddle sizes is bigger, and manufacture cost is higher.
Summary of the invention
The technical problem that the utility model will solve provides a kind of simple in structure, HTHP gate valve with universal location flashboard assembly that requirement on machining accuracy is low.
For solving the problems of the technologies described above; The technological scheme of the utility model is: a kind of HTHP gate valve with universal location flashboard assembly; Comprise valve body, valve rod and flashboard assembly, its innovative point is: said flashboard assembly comprises left flashboard, right flashboard, left plunger tip and right plunger tip, and said left flashboard, right flashboard inner side surface are separately installed with left plunger tip and right plunger tip; Said left plunger tip is the concave spherical surface structure that positioning hole is driven at the center; Said right plunger tip is the protruding spheric structure of center band cylindrical projection, and the protruding sphere of said right plunger tip is close to left plunger tip concave spherical surface, and the protruding center positioning hole that embeds left plunger tip of the centered cylinder of protruding sphere.
Further, the top, joint after said left flashboard and the assembling of right flashboard has the inverted T shape groove, and the lower end of said valve rod is provided with the inverted T-shaped structure that embeds the inverted T shape groove.
The advantage of the utility model is: left and right plunger tip matches and forms, and the centered cylinder of right plunger tip left end is inserted in the positioning hole of left plunger tip, and the protruding sphere of right plunger tip is close to left plunger tip concave spherical surface, makes right plunger tip in left plunger tip, to rotate freely.Utilize the cylindrical projection at left and right plunger tip center to be connected, make when left and right sides flashboard moves up and down synchronously, unlikely displacement, come off, need not to be provided with upper and lower clamping plate and fix, simplify structure with positioning hole.When flashboard and valve seat assembling, if there is machining error in valve seat surface, flashboard can be through the automatic recuperation valve seat surface error of turning to automatically of plunger tip structure; Guarantee flashboard sealing surface and valve seat Percent of contact area; Realize sealing effectively reliably, reduce the processing and assembling precision, improve product reliability.
Description of drawings
Fig. 1 is the HTHP gate valve structure schematic representation of the universal location of the utility model band flashboard assembly.
Fig. 2 is left and right plunger tip structural representation.
Embodiment
Like Fig. 1, shown in 2; Comprise valve body 1, valve rod 2 and flashboard assembly, flashboard assembly comprises left flashboard 3, right flashboard 4, left plunger tip 5 and right plunger tip 6, and left flashboard 3, right flashboard 4 inner side surfaces are separately installed with left plunger tip 5 and right plunger tip 6; Left side plunger tip 5 is opened the concave spherical surface structure of positioning hole for the center; Right plunger tip 6 is the protruding spheric structure of center band cylindrical projection, and the protruding sphere of right plunger tip 6 is close to left plunger tip 5 concave spherical surfaces, and the protruding center positioning hole that embeds left plunger tip 5 of the centered cylinder of protruding sphere.
Top, joint after left side flashboard 3 assembles with right flashboard 4 has the inverted T shape groove, and the lower end of valve rod 2 is provided with the inverted T-shaped structure that embeds the inverted T shape groove.
Working principle: during keying,, make left flashboard 3, synchronous when right flashboard 4 moves up and down, unlikely displacement, come off, need not to be provided with upper and lower clamping plate and fix, simplify structure because the centered cylinder of right plunger tip 6 left ends inserts in the positioning hole of left plunger tip 5.And during the assembling of flashboard and valve seat, if there is machining error in valve seat surface, flashboard can come to turn to automatically automatic recuperation valve seat surface error through the structure that rotates freely of left plunger tip 5, right plunger tip 6, guarantees flashboard sealing surface and valve seat Percent of contact area.
Claims (2)
1. HTHP gate valve with universal location flashboard assembly; Comprise valve body, valve rod and flashboard assembly; It is characterized in that: said flashboard assembly comprises left flashboard, right flashboard, left plunger tip and right plunger tip; Said left flashboard, right flashboard inner side surface are separately installed with left plunger tip and right plunger tip, and said left plunger tip is the concave spherical surface structure that positioning hole is driven at the center, and said right plunger tip is the protruding spheric structure of center band cylindrical projection; The protruding sphere of said right plunger tip is close to left plunger tip concave spherical surface, and the protruding center positioning hole that embeds left plunger tip of the centered cylinder of protruding sphere.
2. according to the said HTHP gate valve of claim 1 with universal location flashboard assembly; It is characterized in that: the top, joint after said left flashboard and the assembling of right flashboard has the inverted T shape groove, and the lower end of said valve rod is provided with the inverted T-shaped structure that embeds the inverted T shape groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163602 CN202597745U (en) | 2012-04-18 | 2012-04-18 | High-temperature high-pressure gate valve with universal positioning gate disc component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163602 CN202597745U (en) | 2012-04-18 | 2012-04-18 | High-temperature high-pressure gate valve with universal positioning gate disc component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597745U true CN202597745U (en) | 2012-12-12 |
Family
ID=47315284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163602 Expired - Fee Related CN202597745U (en) | 2012-04-18 | 2012-04-18 | High-temperature high-pressure gate valve with universal positioning gate disc component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
| CN106015614A (en) * | 2016-07-14 | 2016-10-12 | 哈电集团哈尔滨电站阀门有限公司 | Wedge type dual-gate valve |
-
2012
- 2012-04-18 CN CN 201220163602 patent/CN202597745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832671A (en) * | 2015-04-16 | 2015-08-12 | 上海联科阀门成套设备有限公司 | Gate valve |
| CN106015614A (en) * | 2016-07-14 | 2016-10-12 | 哈电集团哈尔滨电站阀门有限公司 | Wedge type dual-gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180418 |