CN1142027A

CN1142027A - Hemisphere valve

Info

Publication number: CN1142027A
Application number: CN 95108474
Authority: CN
Inventors: 尔哈德·潘农史密斯
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-28
Filing date: 1995-07-28
Publication date: 1997-02-05

Abstract

A hemisphere valve is fitted with an hole and sealing element, during rotation, said sealing element can selectively close the connecting hole, or make the opening and connecting hole of outer sheel unobstructed. The inner surface of outer sheel and the external surface of hemisphere valve are same in shape and size.

Description

Semispherical valve

The present invention relates to a kind of semispherical valve, refer to a kind of semispherical valve that can weld especially.

Known to the ball valve body that enters by end face in, for valve body partly the installing of amplitude to make things convenient for cock body that will increase opening, and after same convenience is welded into the some of pipeline at this ball valve body, the valve body of this cock body partly can be removed, and the airtight of its shell is to be used to locate this cock body valve body lid that screws togather partly by a bead or reach.

By understanding a kind of existing ball valve body in No. 3914327 patent case of Germany, it has a lid that is located on the shell, this shell comprises two conduits of blockading that be arranged in parallel, it is to be arranged in the shell the hemispherical valve body that rotates by bearing and to cooperate with one, utilize lid to guide the valve body of actuating mechanism effect with this shell seal with tool, and in the extending flute of conduit, be coaxially arranged with the sealing ring, and these are arranged on the zone line place of this ball valve body middle punch.

In No. 9408156 patent case of Germany, can understand another kind of existing ball valve body, it is a kind of seal of single element, this support is positioned at the effect of a sealing of the formation of the seal on the hollow space sidewall in the shell, and has a hemispheric groove for the valve body of cock body and hole cooperation with coaxial connection perforation, the sealing part is made and can fully the hollow space that is arranged in valve shell be covered by the material that is fit to, so the material of the valve body of flowing through just can not be stuck in gap or other the dead angle; This lid can make seal be gone into by pressing by the initial tension force of cock body valve body to make its performance obtain improvement in the space of hollow in addition, this can prevent that object from for example entering in the hollow space between lid and valve body, ball valve can possess these functions satisfactorily, if yet the sealing body has been damaged, it must be changed the whole nappe that is made of seal, thereby essential want expensive money, especially when this seal be during by senior material manufacturing.

In view of this, the semispherical valve that provides one can weld promptly is provided main purpose of the present invention, it can make the mast of cock body and Sealing installing or remove and the slit or the dead angle that can generation object is blocked, and its as far as possible cheaply material manufactured.

The objective of the invention is to be achieved through the following technical solutions, a kind of semispherical valve with attachment hole, it has an opening at the hollow space place with the rectangular position of attachment hole, the one hemispherical valve body that rotates is set in place in the hollow space of opening top, it can select axostylus axostyle to move by a sealing of rotating with bearing, sealing layer and a lid that covers this opening are arranged between valve body and shell, wherein: this valve body has and attachment hole relative number purpose groove, this attachment hole and these grooves are a straight line and arrange, this each groove has a flat seal element setting wherein, the outside of sealing element is identical with the spherical moulding of valve body, and be designed in groove and attachment hole over against the time, in order to cover this attachment hole.

In aforesaid semispherical valve, the shape that seal element surrounded is circular.

In aforesaid semispherical valve, the shape that seal element surrounded is polygonal.

In aforesaid semispherical valve, between the bottom surface of seal element and groove, be provided with a spring.

In aforesaid semispherical valve, the bottom surface of seal element has the groove of an annular so that an O shape ring to be set therein.

In aforesaid semispherical valve, this selection axostylus axostyle by one the sealing ring enclosed, its surface contact with valve body, and this selection axostylus axostyle can by be positioned on the shell nut and the quilt pressing in advance.

In aforesaid semispherical valve, between nut and shell, be provided with a dish-like shell fragment.

In aforesaid semispherical valve, valve body has a column partly, and it is arranged in the cylindrical recesses of shell, and contacts with lid.

In aforesaid semispherical valve, a seal ring is arranged on the inboard of lid.

In aforesaid semispherical valve, a body is made by the sealing layer material, is set on this column part.

The present invention has following advantage on use is implemented:

1. volume is less, weight is light and can save material: because of the present invention directly is welded on the pipeline, certainly, need under the state of opening, to weld in order to avoid injure valve body, it does not need to be provided with flange with the foundation as joint, can save at least four flanges and relevant bolt, and the diaphragm seal between flange and flange, so can when saving material, reduce weight, and also thereby can reduce the shared time in when assembling, in addition because be, so the chance that leaks outside greatly reduces by welding joint.

2. because the shape of shell inner face is identical with the shape of hemispherical valve body appearance,, can reduces transportation of substances effectively and stagnate therebetween, and transmit the resistance impact of material for ball valve so almost there is not the space of stagnation.

3. material wear-resisting and that prevent viscous can be covered at the inner face of shell and the outer surface of hemispherical valve body, and the stagnation behavior of institute's transportation of substances can be prevented really.

4. the present invention almost is low equally by the torque value that is opened to the stroke of 90 degree between the closure, and can reduce the material that is stuck in the ball valve outer surface in a large number by the seal element that the PTFE material is made, and can reduce the resistance when twisting effectively.

5. the amount that is applied in the material on the Sealing is very little, some situation is obvious especially, and when particularly using expensive material, the program of making seal element is also very simple, in the time will changing the seal of wearing and tearing, can be changed easily and be reinstalled as long as unload the bottom of valve body.In the part of changing losser, only need open and get final product by the end face spiral shell, seem quite simple and easy and convenient, and the present invention can be according to the characteristic of different temperature requirement and fluid the seal element of conversion materials more, to reach application target and to make its applicable scope more extensive.

6. ball valve sealing element of the present invention does not seemingly have the seal element of ball valve now generally as the weight of bearing shell with the support ball valve, so the wearing and tearing of its seal element can minimize.

The present invention be fit to use as the chemistry industry, pharmacy industry, grocery trade (as milk) or need to transmit stickum has industries such as safety worries after perhaps material leaks outside.

Further specify specific structural features of the present invention and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is a sectional view of the present invention's ball valve of closing;

Fig. 2 is the schematic representation of the unlatching situation of ball valve as shown in Figure 1;

Fig. 3 be as shown in Figure 1 ball valve along the top view of 3-3 line;

Fig. 4 is the schematic representation of the cock body valve body of its interior tool one improvement Sealing;

Fig. 5 one is provided with the sectional view of the three-dimensional ball valve of L shape perforation in valve body;

Fig. 6 is the sectional view of a similar what Fig. 5, but is provided with the perforation of a T shape in its valve body.

See also Fig. 1 to Fig. 3, wherein ball valve 10 has one single shell 12, it has two

coaxial attachment holes

14 and 16, these attachment holes extend in the hollow space that is made of hollow section 18 and column hollow section 20, the hemispherical valve body 22 in its built-in interior tool hole 24.When ball valve 10 was the state of unlatching, hole 24 was a straight line with attachment hole 14 and 16 (as shown in Figure 2); And when ball valve 10 closures, 24 in hole is 90 skews of spending with

attachment hole

14 and 16 and turns to (as shown in Figure 1).

Hemispherical valve body 22 has a cylindrical sections 26, and it can be set in the cylindrical sections 20 of hollow.One body 28 is to be made by a kind of suitable sealing material, and it can be pushed and be set on this valve body.

One lid 32 is arranged in an opening 30 that is arranged in shell 12, and the planar base surface of the cylindrical sections 26 of this ball valve 22 then contacts with this lid 32.This lid 32 comprises an O shape ring 34, and it is arranged in the relative groove that can make lid 32 and shell 12 depressurization states.

One selects axostylus axostyle 36 and hemispherical valve body 22 to form one, and it outwards stretches in one of shell 12 suitable hole.One annular seal 38 is arranged in the hole of shell 12, and with the end face of selecting axostylus axostyle 36 and ball valve 22 interoperation together partly, thereby can cooperate with the spherical outer surface of valve body 22.Another annular seal 40 is arranged in the extension of section in this hole of shell 12, and extraterrestrial a little stretching in outside this hole.In the outside of this shell 12, select axostylus axostyle 36 to be enclosed by a pressure ring 42, be provided with a dish-like shell fragment 44 thereon, this dish-like shell fragment tool compression and the wearing and tearing that are enough to the compensation sealing ring are automatically to reach the effect of leak-stopping.This dish-like shell fragment is supporting one of an actuating strut 50 to collude partly internal ring portion part 46 of 48 of shape, and it is connected with this selection axostylus axostyle by a nut 52, and this nut 52 is arranged in the end face screw thread part of this selection axostylus axostyle 36.

Partly two downward lugs 54 and 56 are arranged on 48 colluding shape, it is arranged in the arcuation groove 58,60 of shell 12, rotation that like this can limiting valve body 22.

Valve body 22 respectively is provided with a

groove

62 and 64 in the relative both sides of diameter, then is provided with

seal element

66 and 68 in it.

Seal element

66,68 forms a crown appearance in its bottom surface, and this crown appearance makes the outer radial zone of

seal element

66,68 to be pressed into.The axis of each groove all is positioned on these valve body 22 hemispheroidal circle footpaths,

seal element

66 and 68 external surface shape then can match with the external surface shape of valve body 22, when it is closed position (as shown in Figure 1), the

seal element

66 and 68 that is positioned at

attachment hole

14 and 16 ends has just formed the state of sealing by the action that the hole is all covered.

Seal element

66 and 68 bottom surface are dome-shaped, can inwardly be pressed in

groove

62 and 64 for this appearance zone radially.

Seal element

66 and 68 thereby also form the effect of spring removes to reach described sealing effect to execute a pressure.

Nut 52 is used for pressing this selection axostylus axostyle 36 and is arranged in the valve body 22 of shell 12, to reach the effective seal effect and not have dead-space volume.

Valve body 22a shown in Figure 4 is to shown similar in Fig. 1 and Fig. 2, and seal element 66a and 68a are the smooth pattern in bottom surface, thereby corresponding with the base portion of groove 62a and 64a.The groove that the bottom surface of sealing element 66a has a ring-type is wherein established an O shape ring 70, has only the O shape ring 70 of seal element 68a can see in Fig. 4, and these O shape ring 70 effect as same springs can be with seal element outwards pressing in advance.

The best surface configuration of seal element is circular, but also can be polygonal, for the Sealing of circle, be best with the pressure pressing, when unclamping, the outer surface of sealing element can pass the profile of valve body to reach efficient pressure and sealing effect when sealing.

Seal element

66 and 68 or 66a and 68a can suitable be not stained with sticking material and make by a kind of, PTFE for example.The PTFE composite material, graphite, pottery, metal, and the flexible material of tool, decide on its needed temperature and medium, prevent when valve body seals that product from transmitting via it and when valve body is released out, prevent between metallic member, to produce when blocking effective especially.

Fig. 5 is the sectional view of a ball valve shell 11, and it has a ball valve 21 according to the present invention, is provided with the perforation 25 of L shape in it.Thereby, except the

attachment hole

13 and 17 of the same axis of mutual tool, shell 11 is provided with an attachment hole 15a in square position, two

seal elements

65 and 67, thereby at the rectangular off normal state of the suitable groove of valve body 21, to reach the function of three-way valve.

Except the attachment hole 14b and 16b of shell 12b, this kind has one the 3rd attachment hole 15b in pattern shown in Figure 6, itself and the same hole 14b of a straight line and the pattern that 16b is orthogonal of being.Valve body 22b has the hole 24B of a T shape, and this also is a kind of valve body of three-dimensional.A single seal element 66b is set at the suitable groove of ball valve 22b.Other function and the function of ball valve in being presented at Fig. 5 and Fig. 6 are to reach in identical mode in the ball valve as mentioned before, thereby no longer explain, with the exception of this, this ball valve and preamble mention mutually roughly the same, and be located in this valve shell with identical method.

Semispherical valve in the present invention, seal is set in the suitable groove of cock body valve body, these have the spherical outer surface of a projection, to be suitable for spherical valve body, for example in one that passes this ball valve is bored a hole continuously, this groove be the skew 90 the degree and be provided with, pattern according to this ball valve that is to say, it can be provided with two and lead to, threeway, the valve body of four-way or five-way, and those grooves and seal just should be installed according to the number of these perforation, this expression, in suitable rotation, this sealed valve body of packing into can cover one maturely and be located at attachment hole relative in the shell to reach desired seal action.

Claims

1. semispherical valve with attachment hole, it has an opening at the hollow space place with the rectangular position of attachment hole, the one hemispherical valve body that rotates is set in place in the hollow space of opening top, it can select axostylus axostyle to move by a sealing of rotating with bearing, sealing layer and a lid that covers this opening are arranged between valve body and shell, it is characterized in that: this valve body (22,22a) have and attachment hole (14,16) relative number purpose groove (62,64,62a, 64a), this attachment hole (14,16) can with these grooves (62,64,62a, 64a) being a straight line arranges, this each groove (62,64,62a, 64a) has a flat seal element (66,68,66a, 68a) be provided with wherein, sealing element (66,68,66a, side and valve body (22 68a), spherical appearance 22a) is identical, and be designed in groove (62,64,62a, 64a) with attachment hole (14,16) to timing, in order to cover this attachment hole (14,16).

2. semispherical valve according to claim 1 is characterized in that: the shape that seal element (66,68,66a, 68a) is surrounded is circular.

3. semispherical valve according to claim 1 is characterized in that: the shape that seal element (66,68) is surrounded is polygonal.

4. semispherical valve according to claim 1 is characterized in that: be provided with a spring between the bottom surface of seal element and groove.

5. semispherical valve according to claim 4 is characterized in that: the bottom surface of seal element (66a, 68a) has the groove of an annular so that an O shape ring (70) to be set therein.

6. semispherical valve according to claim 1, it is characterized in that: this selection axostylus axostyle (36) is enclosed by a sealing ring (38), its the surface contact with valve body (22), and this selection axostylus axostyle (36) can by be positioned on the shell (12) nut (52) and the quilt pressing in advance.

7. semispherical valve according to claim 6 is characterized in that: be provided with a dish-like shell fragment (44) between nut (52) and shell (12).

8. semispherical valve according to claim 1 is characterized in that: valve body (22) has a column partly (26), and it is arranged in the cylindrical recesses (20) of shell (12), and contacts with lid (32).

9. semispherical valve according to claim 8 is characterized in that: a seal ring (34) is arranged on the inboard of lid (32).

10. according to Claim 8 or 9 described semispherical valves, it is characterized in that: a body (28) is made by the sealing layer material, is set at this column and partly goes up (26).