CN203009883U - Forged-steel solid high-pressure sluice valve - Google Patents
Forged-steel solid high-pressure sluice valve Download PDFInfo
- Publication number
- CN203009883U CN203009883U CN 201220755781 CN201220755781U CN203009883U CN 203009883 U CN203009883 U CN 203009883U CN 201220755781 CN201220755781 CN 201220755781 CN 201220755781 U CN201220755781 U CN 201220755781U CN 203009883 U CN203009883 U CN 203009883U
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- valve
- flashboard
- valve body
- filler
- valve rod
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Abstract
The utility model discloses a forged-steel solid high-pressure sluice valve, which relates to a high-pressure sluice valve. A cavity is formed in the middle part of a valve body; the upper part of the valve body is fixedly connected with a valve cover; a valve rod is arranged at the center of the valve body and passes through the valve cover to be connected with an electric device; a flashboard is arranged inside the valve body; the top end of the flashboard is connected with the valve rod; the valve cover is fixedly connected with the valve body; the valve rod is in transmission connection with the flashboard; valve seats are symmetrically arranged at two sides of the flashboard; stellite hard alloy is overlaid on the sealing surfaces of the valve seats and the sealing surface of the flashboard; a filler bin is arranged at the periphery of the valve rod; fillers are arranged inside the filler bin; a filler pressing sleeve presses the fillers; a filler gland is arranged at the upper part of the filler pressing sleeve and is connected with the valve cover through swing bolts; a bracket is connected with the valve body through double-screw bolts and hexagon nuts; valve rod nuts are arranged on the bracket; and an electric device is arranged at the top end of the valve.
Description
Technical field
The utility model relates to a kind of high pressure sluice valve, and the firm high pressure sluice valve of particularly a kind of forged steel system is used for the circulation of blocking-up medium, is applicable to the industries such as power station, oil, chemical industry.
Background technique
Since China's reform and opening-up, the national economy rapid growth, " scientific and technical innovation, autonomous innovation " become the main flow of domestic industry development.China's industry is just step by step to the future development of intensive style, energy-saving and emission-reduction, low-carbon (LC).High pressure sluice valve also is pipe valve, is most popular a kind of valve, and why very popular it is, be due in the switching process between sealing surface frictional force little, more durable, Lift is little, and is easy to manufacture, easy to maintenance, be not only applicable to mesolow, and be applicable to high pressure.Its closed principle is that dependence valve rod pressure fits tightly flashboard sealing surface and sealing surface of seat, stops the medium circulation.Traditional gate valve causes valve fragile due to many reasons such as its structure, materials, and sealing is poor, easily causes dielectric leakage.At first, all with bolts between traditional valve body and valve gap, the body cavity space is too large, and when medium entered cavity, pressure increased thereupon, and bolt bears very large medium static pressure, easily causes between valve body and valve gap and leaks.Secondly, flashboard and valve base sealing and hardness is inadequate, roughness is poor, and is not wear-resistant, and resistance to erosion, be not easy to insert and hinder, and causes valve leak.The 3rd, valve rod and Stem Mut material selection are improper, and mechanical strength and creep properties are poor, and be yielding, can not satisfy the torque demand under the high pressure operating mode.The 4th, most of gate valve is to adopt forced seal, namely during valve closing, rely on external force by force flashboard to be pressed to valve seat, to guarantee the sealing of sealing surface.Seal and also can only rely on pressure medium to seal, the valve seat that namely relies on pressure medium that the sealing surface of flashboard is pressed to opposite side guarantees the sealing of sealing surface, selfsealings that Here it is, but when body cavity pressure increases, between valve body and valve gap, sealing can not be tasted by automatic makeup, causes valve leak.The technician of R﹠D institution and enterprise is constantly exploring, is studying, and wishes to develop a kind of gate valve of superior performance, although make some progress, still exists the technical barrier that not yet overcomes in practice.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, and a kind of wear-resistant, anticorrosive, good airproof performance, the firm high pressure sluice valve of lightweight forged steel system are provided.
the technological scheme that its technical problem that solves the utility model adopts is: contain valve body, flashboard, valve seat, valve rod, valve gap, double-screw bolt, hexagon nut, support, filler, filler pressing sleeve, Gland, swing bolt, Stem Mut, Electric actuator, the valve body middle part is cavity, the top is fixedly connected with valve gap, valve body central authorities are provided with valve rod, valve rod passes valve gap and is connected with Electric actuator, flashboard is housed in valve body, the flashboard top is connected with valve rod, valve gap is fixedly connected with valve body, valve rod and flashboard are in transmission connection, valve seat is symmetricly set on flashboard both sides, sealing surface of seat and the equal built-up welding Si Taili of flashboard sealing surface cemented carbide, filling container is positioned at the periphery of valve rod, filler is contained in filling container, filler pressing sleeve compresses filler, filler pressing sleeve top is provided with Gland, Gland is connected with valve gap by swing bolt, support is connected with valve body with hexagon nut by double-screw bolt, Stem Mut is arranged on support, valve tip is provided with Electric actuator.
The know-why that its technical problem that solves the utility model adopts is: Stem Mut is arranged on support, when opening and closing flashboard, start Electric actuator, by the Stem Mut of valve tip and the guide groove on valve body, to rotatablely move and become straight line motion, namely will operate torque and become operation thrust, realize the lifting of valve rod.When the flashboard lifting height equaled 1: 1 times of valve latus rectum, the Channel Perfect of fluid was unimpeded, but when operation, and this position can't monitor, therefore, the fully open position of valve comes definite by the position (being stroke) of gate.The valve body of this valve and the valve gap of Band clamp adopt die forging to support, and small-bore valve is welded on pipe arrangement as a rule, and the steel grade that the valve body selection is applicable to weld adopts the material identical with valve body on the valve gap of valve.When gate valve was closed, sealing surface can only rely on pressure medium to seal, and the valve seat that namely relies on pressure medium that the sealing surface of flashboard is pressed to opposite side guarantees the sealing of sealing surface, selfsealings that Here it is.Owing to adopting wiper seal valve gap mode, to compare with the bolton valve gap, basic high pressure sealing is good, lightweight.The conventional high-temperature high pressure valve is all heavier, can alleviate unnecessary weight with self-pressure-sealed valve gap, so not only saves material but also reduces the labour force.For the sealing surface of gasket ring, carry out superfinish with special processing method, even high-temperature, high pressure fluid enters in gasket ring, can not leak out from the inside yet.Flashboard and valve seat insert adopt the materials such as the high chromium steel of creep strength, Cr-Mo steel, nickel chrome steel more, the characteristics of Here it is high temperature high pressure valve.For sealing surface of seat and flashboard sealing surface built-up welding Si Taili cemented carbide all, therefore can not cause biting, and wear-resistant, resistance to erosion, corrosion-resistant.Valve rod also adopts the high alloyed steel of the creep strength identical with flashboard to make, and nitriding treatment is carried out on its surface, to increase its surface hardness, guarantees enough intensity.Therefore, can prevent from generating heat deadlocked, cause malfunction.The damage that the operating barrier number of times of high temperature high pressure valve causes than withstand voltage position especially when the manipulation operations handle, must not add the operational torque of overrate often, otherwise with regard to danger close.
The beneficial effects of the utility model are: adopt self-pressure-sealed valve gap can alleviate unnecessary weight, not only save material but also reduce labour force and good airproof performance.Sealing surface of seat and flashboard sealing surface be built-up welding Si Taili cemented carbide all, wear-resistant, resistance to erosion, corrosion-resistant.
Description of drawings
The below is further described the utility model in conjunction with the accompanying drawings and embodiments:
It is the firm high pressure sluice valve plan view of forged steel system in figure;
In the drawings, 1 valve body, 2 flashboards, 3 valve seats, 4 valve rods, 5 valve gaps, 6 double-screw bolts, 7 hexagon nuts, 8 supports, 9 fillers, 10 filler pressing sleeves, 11 Glands, 12 swing bolts, 13 Stem Muts, 14 Electric actuators.
Embodiment
in the drawings, valve body 1 middle part is cavity, the top is fixedly connected with valve gap 5, valve body 1 central authorities are provided with valve rod 4, valve rod 4 passes valve gap 5 and is connected with Electric actuator 14, flashboard 2 is housed in valve body 1, flashboard 2 tops are connected with valve rod 4, valve gap 5 is fixedly connected with valve body 1, valve rod 4 is in transmission connection with flashboard 2, valve seat 3 is symmetricly set on flashboard 2 both sides, valve seat 3 sealing surfaces and the flashboard 2 equal built-up welding Si Taili of sealing surface cemented carbide, filling container is positioned at the periphery of valve rod 4, filler 9 is contained in filling container, filler pressing sleeve 10 compresses filler, filler pressing sleeve 10 tops are provided with Gland 11, Gland 11 is connected with valve gap 5 by swing bolt 12, support 8 is connected with valve body 1 with hexagon nut 7 by double-screw bolt 6, Stem Mut 13 is arranged on support 8, valve tip is provided with Electric actuator 14.
This valve rod nut 13 is arranged on support 8, when opening and closing flashboard 2, starts Electric actuator 14, by the Stem Mut 13 of valve tip and the guide groove on valve body 1, to rotatablely move becomes straight line motion, namely will operate torque and become operation thrust, realizes the lifting of valve rod 4.When flashboard 2 lifting heights equaled 1: 1 times of valve latus rectum, the Channel Perfect of fluid was unimpeded, but when operation, and this position can't monitor, therefore, the fully open position of valve comes definite by the position (being stroke) of gate.The valve body 1 of this valve adopts die forging to support with the valve gap of Band clamp 5, and small-bore valve is welded on pipe arrangement as a rule, and the steel grade that valve body 1 selection is applicable to weld adopts the material identical with valve body 1 on the valve gap 5 of valve.When gate valve was closed, sealing surface can only rely on pressure medium to seal, and the valve seat 3 that namely relies on pressure medium that the sealing surface of flashboard 2 is pressed to opposite side guarantees the sealing of sealing surface, selfsealings that Here it is.Owing to adopting wiper seal valve gap mode, to compare with the bolton valve gap, its high pressure sealing is good, lightweight.The conventional high-temperature high pressure valve is all heavier, can alleviate unnecessary weight with self-pressure-sealed valve gap, so not only saves material but also reduces the labour force.For the sealing surface of gasket ring, carry out superfinish with special processing method, even high-temperature, high pressure fluid enters in gasket ring, can not leak out from the inside yet.Flashboard 2 and valve seat insert adopt the materials such as the high chromium steel of creep strength, Cr-Mo steel, nickel chrome steel more, the characteristics of Here it is high temperature high pressure valve.For valve seat 3 sealing surfaces and flashboard 2 sealing surfaces built-up welding Si Taili cemented carbide all, therefore can not cause biting, and wear-resistant, resistance to erosion, corrosion-resistant.Valve rod 4 also adopts the creep strength high alloyed steel identical with flashboard 2 to make, and nitriding treatment is carried out on its surface, to increase its surface hardness, guarantees enough intensity.Therefore, can prevent from generating heat deadlocked, cause malfunction.The damage that the operating barrier number of times of high temperature high pressure valve causes than withstand voltage position especially when the manipulation operations handle, must not add the operational torque of overrate often, otherwise with regard to danger close.
Claims (1)
1. the firm high pressure sluice valve of forged steel system, contain valve body, flashboard, valve seat, valve rod, valve gap, double-screw bolt, hexagon nut, support, filler, filler pressing sleeve, Gland, swing bolt, Stem Mut, Electric actuator, it is characterized in that: be cavity in the middle part of valve body, the top is fixedly connected with valve gap, valve body central authorities are provided with valve rod, valve rod passes valve gap and is connected with Electric actuator, flashboard is housed in valve body, the flashboard top is connected with valve rod, valve gap is fixedly connected with valve body, valve rod and flashboard are in transmission connection, valve seat is symmetricly set on flashboard both sides, sealing surface of seat and the equal built-up welding Si Taili of flashboard sealing surface cemented carbide, filling container is positioned at the periphery of valve rod, filler is contained in filling container, filler pressing sleeve compresses filler, filler pressing sleeve top is provided with Gland, Gland is connected with valve gap by swing bolt, support is connected with valve body with hexagon nut by double-screw bolt, Stem Mut is arranged on support, valve tip is provided with Electric actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755781 CN203009883U (en) | 2012-12-30 | 2012-12-30 | Forged-steel solid high-pressure sluice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220755781 CN203009883U (en) | 2012-12-30 | 2012-12-30 | Forged-steel solid high-pressure sluice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009883U true CN203009883U (en) | 2013-06-19 |
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ID=48601480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220755781 Expired - Fee Related CN203009883U (en) | 2012-12-30 | 2012-12-30 | Forged-steel solid high-pressure sluice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315218A (en) * | 2014-09-19 | 2015-01-28 | 陈绪英 | Valve body and flange integrated connection type forged steel gate valve |
| CN110671505A (en) * | 2019-10-14 | 2020-01-10 | 戴学祥 | Compact tubular gate valve |
-
2012
- 2012-12-30 CN CN 201220755781 patent/CN203009883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315218A (en) * | 2014-09-19 | 2015-01-28 | 陈绪英 | Valve body and flange integrated connection type forged steel gate valve |
| CN110671505A (en) * | 2019-10-14 | 2020-01-10 | 戴学祥 | Compact tubular 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 |
Granted publication date: 20130619 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |