CN205190883U - High pressure plate valve - Google Patents
High pressure plate valve Download PDFInfo
- Publication number
- CN205190883U CN205190883U CN201520848615.XU CN201520848615U CN205190883U CN 205190883 U CN205190883 U CN 205190883U CN 201520848615 U CN201520848615 U CN 201520848615U CN 205190883 U CN205190883 U CN 205190883U
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- valve
- valve body
- flashboard
- rod
- pod apertures
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Abstract
The utility model relates to a high pressure plate valve, high pressure plate valve includes the main valve body, locates the lower valve body of main valve body lower part, water conservancy diversion hole flashboard, and the valve rod, valve gap and disk seat, the main valve body welds into a set of box -like valve body through a flange joint spare and lower valve body, constitute the pressure -bearing casing through a sealing kit between combination formula valve body and the valve gap.
Description
Technical field
The utility model relates to a kind of valve, and especially a kind of saving material, good seal performance, structure is simple, plate valve easy to process.
Background technique
Pipelines and petrochemical pipelines high-pressure flat gate valve is a kind of pipe cutting valve, is arranged on petrochemical industry high-pressure oil gas pipeline, adopts the drive unit such as manual, pneumatic to carry out scene or distant control, plays a part to open or closing duct.Existing oil and gas pipes high-pressure flat gate valve is formed by Assembly of the parts such as valve body, valve gap, flashboard, valve rod and handwheels, is arranged on oil and gas pipes and makes switch valve purposes.The flow channel for working media flow and flow pass is provided with in valve body, the lumen can placing flashboard is provided with between described flow channel and flow pass, described flashboard is the flat board in a band plane sealing face, valve body sealing surface is provided with at flow channel and lumen place, described valve body sealing surface is a built-up welding sealing plane on valve body, and the sealing of valve relies on valve rod to drive flashboard to be pressed onto valve body sealing surface forms sealing pair and.Described valve body adopts flange/pad to be connected with the connection of valve gap.Described handwheel is placed on valve top part usually, moves up and down for actuate valve stem.
The in use common problem of this traditional gas pipeline plate valve is: the valve body of described valve is that the blank forged piece of an integrated type open die forging is shaped through machining, the amount of machining of its inner chamber and profile can reach more than 50% of blank weight, this not only causes raw material to waste in a large number, and cause processing difficulties and the process-cycle long.Additional valves flashboard in switching process there will be swing under High Pressure Difference, and violent swing can damage sealing surface, can cause seal leakage.When valve rod moves to closed condition from opening state simultaneously, piston effect is produced because valve rod closes the increase of body cavity inner volume at valve body, body intracavity pressure is increased, especially the increase of the higher body intracavity pressure caused of working pressure is larger, and the abnormal rising of high pressure operating mode hypocoelom internal pressure can bring potential safety hazard.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of saving material, and good seal performance, structure is simple, plate valve easy to process.
For solving the problems of the technologies described above, the utility model comprises main valve body, be located at the lower valve body of main valve body bottom, pod apertures flashboard, valve rod, valve gap and valve seat, described main valve body is welded into a combined type valve body by a flange connector and lower valve body, forms pressure-bearing shell between described combined type valve body and valve gap by a Seal Kit.
After have employed said structure, integrated type open die forging valve body is set to weld composite structure by split four formulas of main valve body, lower valve body and two flange connectors, four parts such as main valve body are easy to forging and processing, its sharp processing Liang Minus is few, can effectively save raw material and processing charges, reduce costs.
As further improvement of the utility model, described Seal Kit comprises stud, nut and gasket ring, and described lower valve body and valve gap are equipped with threaded stud hole, and stud respectively by the threaded stud hole on lower valve body and valve gap, and tightens up with nut by described stud.
After have employed said structure, the design of stud and nut and gasket ring can sealability between valve seat and valve body better, and structural design is comparatively simple.
As further improvement of the utility model, described pod apertures flashboard comprises the connecting end be arranged at above pod apertures flashboard and the interlock end be arranged at below flashboard, described connecting end is fixedly connected with valve rod, described interlock end can be connected with guide rod, and guide rod can the upper and lower motion with the switch of pod apertures flashboard.
After have employed said structure, guide rod and valve rod can play supporting and leading role to flashboard simultaneously, flashboard in switching process can be made to there will not be under High Pressure Difference swing and damage sealing surface, can safely and smoothly sealing surface be remained on accurately on seal operation position.The upper end of flashboard is connected to valve rod and lower end is connected to guide rod, and when avoiding switch valve, valve rod moves up and down and can produce the abnormal piston effect raised of body intracavity pressure because valve rod in closed body cavity inner volume change.Four are that the upper end of flashboard is connected to valve rod and lower end is connected to guide rod, the chamber pressure that body cavity pressure can make counteracting valve rod bear to the outward thrust of guide rod is to its outward thrust, and the outward thrust that valve rod bears reduces can effectively reduce valve switch moment
Accompanying drawing explanation
Figure 1 shows that high-pressure flat gate valve sectional view.
Embodiment
As shown in Figure 1, as shown in Figure 1, new structure high-pressure flat gate valve by the parts such as main valve body 1, flange connector 2, lower valve body 3, band pod apertures flashboard 4, guide rod 5, valve rod 11, valve gap 18, valve seat 20 and handwheel 10 form a kind of switch valve.Described main valve body about 1 two ends are provided with two flange connectors 2, described main valve body 1 bottom is provided with lower valve body 3, combined type valve body and valve gap 18, through being welded into a combined type valve body, are formed pressure-bearing shell by stud 14, nut 15 and gasket ring 19 by described main valve body 1 and lower valve body 3 and two flange connectors 2.The valve seal pair that main valve body 1 lumen is provided with band pod apertures flashboard 4 and is made up of valve seat 20,0 shape circle 21, spring 22.Band pod apertures flashboard 4 upper end is connected to valve rod 11 and lower end is connected to guide rod 5, and the other end of valve rod 11 inserts in the packing seal assembly be made up of upper filler 17 and upper Gland 14 of valve gap 18.The upper end of valve rod 11 is provided with Stem Mut 12, handwheel 10 and upper safety cover 9; The other end of guide rod 5 inserts in the packing seal assembly be made up of lower filler 6 and lower Gland 7 of lower valve body 3, and the lower end of guide rod 5 is provided with lower safety cover 8.
As shown in Figure 1, new structure high-pressure flat gate valve be provided with two flange connectors 2 by main valve body about 1 two ends, described main valve body bottom is provided with lower valve body 3, described main valve body 1 and lower valve body 3 and two flange connectors 2 are through being welded into a combined type valve body, combined welding valve body, compared with open die forging valve body, has the advantage that obviously labor and material saving is cost-saving.
As shown in Figure 1, the handwheel 10 of new structure high-pressure flat gate valve rotates, the opening and closing of the valve that moved up and down with ovable valve stem 11, band pod apertures flashboard 4 and guide rod 5 through Stem Mut 12.In switch, valve rod 11 and guide rod 5 can simultaneously to 4 supportings of band pod apertures flashboard and leading roles, can make in switching process, be with pod apertures flashboard 4 to there will not be under High Pressure Difference swing and damage sealing surface, safely and smoothly sealing surface can be remained on and open and close on seal operation position accurately.
As shown in Figure 1, the upper end of the band pod apertures flashboard 4 of new structure high-pressure flat gate valve is connected to valve rod 11 and lower end is connected to guide rod 5, guide rod 5 is set to identical diameter with valve rod 11, when valve rod 11 moves to closed condition from opening state, valve rod 11 closes the increase of body cavity inner volume and guide rod 5 closes the identical minimizing of body cavity inner volume at valve body at valve body, movement parts total volume in valve body closure chamber can be kept constant, thus avoid because of valve rod 11 move up and down in closed body cavity can produce pressure anomaly raise piston effect.
As shown in Figure 1, the upper end of the band pod apertures flashboard 4 of new structure high-pressure flat gate valve is connected to valve rod 11 and lower end is connected to guide rod 5, guide rod 5 is set to identical diameter with valve rod 11, the chamber pressure that body cavity pressure can make counteracting valve rod 11 bear to the outward thrust of guide rod 5 is to its outward thrust, and the outward thrust that valve rod 1 bears reduces can effectively reduce valve switch moment.
Claims (3)
1. a high-pressure flat gate valve, it is characterized in that: described high-pressure flat gate valve comprises main valve body, be located at the lower valve body of main valve body bottom, pod apertures flashboard, valve rod, valve gap and valve seat, described main valve body is welded into a combined type valve body by a flange connector and lower valve body, forms pressure-bearing shell between described combined type valve body and valve gap by a Seal Kit.
2. high-pressure flat gate valve according to claim 1, it is characterized in that: described Seal Kit comprises stud, nut and gasket ring, described lower valve body and valve gap are equipped with threaded stud hole, and stud respectively by the threaded stud hole on lower valve body and valve gap, and tightens up with nut by described stud.
3. high-pressure flat gate valve according to claim 1, it is characterized in that: described pod apertures flashboard comprises the connecting end be arranged at above pod apertures flashboard and the interlock end be arranged at below flashboard, described connecting end is fixedly connected with valve rod, described interlock end can be connected with guide rod, and guide rod can the upper and lower motion with the switch of pod apertures flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848615.XU CN205190883U (en) | 2015-10-29 | 2015-10-29 | High pressure plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520848615.XU CN205190883U (en) | 2015-10-29 | 2015-10-29 | High pressure plate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190883U true CN205190883U (en) | 2016-04-27 |
Family
ID=55783871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520848615.XU Active CN205190883U (en) | 2015-10-29 | 2015-10-29 | High pressure plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909811A (en) * | 2016-06-30 | 2016-08-31 | 纽威石油设备（苏州）有限公司 | Gate valve with valve plate runner hole capable of being vertically exchanged |
| CN110608307A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
-
2015
- 2015-10-29 CN CN201520848615.XU patent/CN205190883U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909811A (en) * | 2016-06-30 | 2016-08-31 | 纽威石油设备（苏州）有限公司 | Gate valve with valve plate runner hole capable of being vertically exchanged |
| CN110608307A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
| CN110608307B (en) * | 2018-06-14 | 2022-02-22 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |