CN201434130Y - Valve structure of gate valve - Google Patents
Valve structure of gate valve Download PDFInfo
- Publication number
- CN201434130Y CN201434130Y CN200920052919XU CN200920052919U CN201434130Y CN 201434130 Y CN201434130 Y CN 201434130Y CN 200920052919X U CN200920052919X U CN 200920052919XU CN 200920052919 U CN200920052919 U CN 200920052919U CN 201434130 Y CN201434130 Y CN 201434130Y
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- Prior art keywords
- pipe
- intake pipe
- sealing seat
- water
- outlet
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- Expired - Fee Related
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Abstract
The utility model relates to a valve structure of a gate valve, comprising a main body; the surface of the main body is provided with a water inlet and a water outlet; the inside of the main body is provided with a water inlet-pipe sealing seat and a water outlet-pipe sealing seat; a water inlet-pipe is arranged from the water inlet to the water inlet-pipe sealing seat; a water outlet seat is arranged from the water outlet-pipe sealing seat to the water outlet; the water-inlet pipe changes to the quadrilateral from the circular shape from the water inlet to the water inlet-pipe sealing seat; and the water outlet pipe changes to the circular shape from the quadrilateral from the water outlet-pipe sealing seat to the water outlet. The utility model effectively lowers the whole height of thevalve; further, when the centre line of the water inlet pipe and the water outlet pipe are downward concave curve lines, the height of the valve is further lowered. And because the height of a square,a rectangle or a trapezoid is lower than the circle with the same area, the friction of the sealing surface between the valve plate and the valve seat does not form easily, thus protecting the sealing surface.
Description
Technical field
The utility model belongs to the gate valve parts, particularly relates to a kind of valve body structure of gate valve.
Technical background
In various types of valves, gate valve occupies the bigger market share.Especially in cutting off the valve of usefulness, gate valve has that circulating resistance is less, sealability reliable and advantage such as switch moment is little, is widely used in every field such as oil, chemical industry, metallurgy, power station, city planting ductwork, plumbing building and defence and military.
Gate valve uses history at most, and is still widely applying countries in the world so far, and particularly the following valve of DN300mm is still occupied an leading position in valve.Wedge action valve wherein uses commonplace in the world, is characterized in that pressure reduction makes valve plate force to be pressed on the valve seat of outlet side before and after the valve plate, and sealing is better, and during standard-sized sheet, valve plate is in outside the runner fully, and flowing pressure loss is little.Its shortcoming is that profile and weight are bigger, and this embodies on the heavy caliber gate valve obviously.The high about 3.2m of gate valve as inside nominal diameter 1m has brought certain trouble to operation; And in valve opening and pass closed procedure, valve plate and sealing surface of seat whole process basically are in Frotteurism, and sealing surface is easy to wear.For these reasons, the metal hard-sealing gate valve generally is suitable for the following bore of DN500mm.
On metallic seal gate valve basis, particularly the rubber sealing gate valve has appearred in the progress of material capability such as rubber in recent years, because of its performance and function are superior, in the world its demand is increased fast.Only in Europe, surplus annual requirement has just reached 50 ten thousand, and bore has also reached 1.2m.But no matter be hard sealing or soft seal, the wear-resisting property of its sealing surface and its excessive height are two big obstacles of restriction gate valve development always.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can effectively reduce the gate valve whole height, and reduce the valve body structure of valve plate friction.
To achieve these goals, the technological scheme of employing is as follows:
A kind of valve body structure of gate valve, comprise main body, body surfaces is provided with water intake and water outlet, body interior is provided with intake pipe sealing seat and outlet pipe sealing seat, be provided with intake pipe from water intake to intake pipe sealing seat, be provided with outlet pipe from outlet pipe sealing seat to water outlet, described intake pipe from water intake to the intake pipe sealing seat by circle gradually transition be quadrilateral, described outlet pipe from the outlet pipe sealing seat to water outlet by quadrilateral gradually transition be circular.
Further, described intake pipe by circle gradually transition be quadrilateral, described outlet pipe and intake pipe are symmetrical with the vertical center line of valve body.Be outlet pipe from the outlet pipe sealing seat to water outlet by quadrilateral gradually transition be circular, the structure of outlet pipe and intake pipe is identical, just along the vertical center line symmetry of valve body, and setting dorsad.
As a tetragonal preferred version, a port of described intake pipe is circular, and another port is a square.
As tetragonal another preferred version, a port of described intake pipe is circular, and another port is a rectangular.
As tetragonal another preferred version, a port of institute's intake pipe is circular, and another port is trapezoidal.
Intake pipe described in the utility model or outlet pipe, the seamed edge that is occurred when being carried out the transition to quadrilateral by circle or carrying out the transition to circle by quadrilateral is provided with fillet.Intake pipe and outlet pipe engender corresponding tetragonal a plurality of seamed edges in circular and tetragonal transition structure, on these seamed edges, fillet all is set eliminates seamed edge, are beneficial to the pressure loss that reduces to flow.
The water intake of described intake pipe and outlet pipe and water outlet are provided with one section curved surface, and this curved surface and the external mouth of pipe are tangent, are beneficial to reduce the local flow loss at water intake and water outlet place.
The center line of described intake pipe and outlet pipe is the straight line of conllinear, or the curve of conllinear, this curve is recessed and be symmetry axis with the vertical center line of valve body, and this curve can be one section circular arc, parabola or polyline, the minimum point of curve overlaps with the vertical center line of valve body.
In the structure of the present utility model, intake pipe ends from water intake to the intake pipe sealing seat, and runner is a polygonal by circular transition gradually; Outlet pipe from the water outlet sealing seat begin to water outlet be circular by the polygonal transition gradually, it is long-pending identical to remain full cross section of fluid channel.Under the identical Flow area, polygonal, particularly square or rectangular or trapezoidal height are less than circular height, thereby reduced the height of whole valve, further, when the center line of intake pipe and outlet pipe was notching curve, the valve height further reduced.And because square or rectangular or trapezoidal height are lower than the circle with area, the friction that has therefore also reduced the sealing surface of valve plate and valve seat forms, thereby has protected sealing surface.
And,, when valve is in full-gear, can effectively stops the current direction valve pocket of intake pipe outlet, thereby reduce flow losses owing to being two limits up and down that are parallel to valve plate on two limits up and down at intake pipe and outlet pipe sealing surface place.This is because compared with prior art, the intake pipe outlet and the outlet pipe import of prior art are circular, correspondingly flashboard also is circular, during standard-sized sheet, the flashboard lower limb can not be in the runner, be that the flashboard lower limb must be positioned at more than the intake pipe outlet peak, when the intake pipe outlet was circular, water entered valve pocket in a large number; And intake pipe of the present utility model outlet is rectangular when trapezoidal or square, and valve plate blocks major part with intake pipe outlet and outlet pipe import upper opening, thereby makes the water minimizing that enters in the valve pocket.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model gate valve intake pipe or outlet pipe structural representation;
Fig. 3 is a ring structure schematic representation of the present utility model;
Fig. 4 is a valve board structure schematic representation of the present utility model;
Fig. 5 is that the utility model is applied to that intake pipe and outlet pipe center line are the sectional drawing of curve on the gate valve structure;
Fig. 6 is that the utility model is applied to that intake pipe and outlet pipe center line are the sectional drawing of straight line on the gate valve structure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Structural representation of the present utility model as shown in Figure 1, comprise that valve body 1, valve body both sides are provided with water intake 2 and water outlet 3, the intake pipe 6 and the outlet pipe 7 that are connected with water outlet 3 with water intake 2, intake pipe 6 and outlet pipe 7 terminate in the intake pipe sealing seat 4 and the outlet pipe sealing seat 5 of valve inner respectively, described intake pipe sealing seat 4 is identical with outlet pipe sealing seat 5 structures, and be the wedge shape setting, corresponding with the wedge shape valve plate, also be provided with seal ring between intake pipe sealing seat 4 and outlet pipe sealing seat 5 and the wedge shape valve plate.
Described intake pipe sealing seat 4 is all identical with size with outlet pipe sealing seat 5 structures.
Intake pipe 6 and outlet pipe 7 are rectangular by the circle transition, or the rectangular transition be in the circular structure, to engender four seamed edges, on these four seamed edges, by fillet 61 elimination seamed edges, are beneficial to the pressure loss that reduces to flow.
There is one section curved surface 62 at the water intake 2 of intake pipe 6 and outlet pipe 7 and water outlet 3 places, and this curved surface 62 was both tangent with the external mouth of pipe, are beneficial to reduce the local flow loss at water intake and water outlet place.
The valve plate that is used with the utility model on perpendicular to the runner direction for the rectangle structure of intake pipe and outlet pipe sealing seat same structure form, as shown in Figure 4, accordingly, the structure that is rectangle of the seal ring between sealing seat and the valve plate, as shown in Figure 3.
Structure when the utility model is applied to gate valve is shown in accompanying drawing 5,6, and wherein the intake pipe of Fig. 5 and outlet pipe center line are curve, and the intake pipe of Fig. 6 and outlet pipe center line are straight line.
Claims (8)
1, a kind of valve body structure of gate valve, comprise main body, body surfaces is provided with water intake and water outlet, body interior is provided with intake pipe sealing seat and outlet pipe sealing seat, be provided with intake pipe from water intake to intake pipe sealing seat, be provided with outlet pipe from outlet pipe sealing seat to water outlet, it is characterized in that described intake pipe from water intake to the intake pipe sealing seat by circle gradually transition be quadrilateral, described outlet pipe from the outlet pipe sealing seat to water outlet by quadrilateral gradually transition be circular.
2, the valve body structure of gate valve according to claim 1, it is characterized in that described intake pipe by circle gradually transition be quadrilateral, described outlet pipe and intake pipe are symmetrical with the vertical center line of valve body.
3, the valve body structure of gate valve according to claim 2, a port that it is characterized in that described intake pipe is for circular, and another port is a square.
4, the valve body structure of gate valve according to claim 2, a port that it is characterized in that described intake pipe is for circular, and another port is a rectangular.
5, the valve body structure of gate valve according to claim 2, a port that it is characterized in that described intake pipe is for circular, and another port is trapezoidal.
6, the valve body structure of gate valve according to claim 1 is characterized in that described intake pipe or outlet pipe, and the seamed edge that is occurred when being carried out the transition to quadrilateral by circle or carrying out the transition to circle by quadrilateral is provided with fillet.
7, according to the valve body structure of each described gate valve of claim 1 to 6, it is characterized in that the water intake of described intake pipe and outlet pipe and water outlet are provided with one section curved surface, this curved surface and the external mouth of pipe are tangent.
8, the valve body structure of gate valve according to claim 7, the center line that it is characterized in that described intake pipe and outlet pipe is the straight line of conllinear, or the curve of conllinear, this curve is recessed and be symmetry axis with the vertical center line of valve body, and the minimum point of curve overlaps with the vertical center line of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920052919XU CN201434130Y (en) | 2009-03-19 | 2009-03-19 | Valve structure of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920052919XU CN201434130Y (en) | 2009-03-19 | 2009-03-19 | Valve structure of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434130Y true CN201434130Y (en) | 2010-03-31 |
Family
ID=42052938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920052919XU Expired - Fee Related CN201434130Y (en) | 2009-03-19 | 2009-03-19 | Valve structure of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434130Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662237A (en) * | 2018-05-25 | 2018-10-16 | 江苏天域阀业制造有限公司 | Valve suitable for conveying high-pressure gas |
| US11480093B1 (en) | 2021-04-28 | 2022-10-25 | HELLA GmbH & Co. KGaA | Valve and fluid tank for a fluid system, and a fluid system for a vehicle |
-
2009
- 2009-03-19 CN CN200920052919XU patent/CN201434130Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662237A (en) * | 2018-05-25 | 2018-10-16 | 江苏天域阀业制造有限公司 | Valve suitable for conveying high-pressure gas |
| US11480093B1 (en) | 2021-04-28 | 2022-10-25 | HELLA GmbH & Co. KGaA | Valve and fluid tank for a fluid system, and a fluid system for a vehicle |
| DE102021110941A1 (en) | 2021-04-28 | 2022-11-03 | HELLA GmbH & Co. KGaA | Valve and liquid tank for a liquid system, and liquid system for a vehicle |
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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: 20100331 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |