CN207364304U

CN207364304U - Cage valve

Info

Publication number: CN207364304U
Application number: CN201720945880.9U
Authority: CN
Inventors: M·梅尔谢尔
Original assignee: Samson AG
Current assignee: Samson AG
Priority date: 2016-08-01
Filing date: 2017-08-01
Publication date: 2018-05-15
Anticipated expiration: 2027-08-01
Also published as: DE202016104214U1

Abstract

It the utility model is related to a kind of cage valve (10,40,42).The cage valve includes valve chest (17,43),The valve chest has the Circulation Area of connection entrance side (12) and outlet side (14),Wherein removably load valve cage (18 in the Circulation Area,44,46),The wherein valve cage (18,44,46) there are multiple notches (20) also in its side wall,These notches can be by surrounding the valve cage (18,44,46) the throttling element (22) that can be moved axially is covered,Wherein described valve cage (18,44,46) there are multiple side notches (26),Wherein,The valve cage (18,44,46) with the seat side acting surface towards the throttling element and with the perforate side acting surface back to seat side acting surface,Wherein in the scram position of the cage valve,Perforate side acting surface is less than or equal to seat side acting surface.

Description

Cage valve

Technical field

It the utility model is related to a kind of cage valve.

Background technology

This regulating valve according to foreword is disclosed by US7073532US.Disclosed cage valve is from valve inlet to valve there There is valve cage (Ventilkaefig) in the transition region of outlet, notch is equipped with valve cage wall.In addition, be equipped with throttling element, its from Outer encirclement valve cage, so that certain cross section of the notch is covered according to the position of throttling element.In this way, Ke Yigen Desired circulation is adjusted out according to the axially position of throttling element.

Utility model content

The task of the utility model is simple changeably design valve cage circulation diameter and looking after prevents valve cage from extracting.

In known manner, which includes valve chest (Ventilgehaeuse), valve chest have connection entrance side and The Circulation Area of outlet side, wherein valve cage is detachably loaded with respect in the Circulation Area as throttling element or seat piece of shutting off, herein, Valve cage has multiple notches also in its side wall, these notches can be by the throttling element that surrounds valve cage and be axially movable especially It is that the plug that shuts off is closed.The valve cage also has seat piece, and seat piece has circular seat surface or seat edge, realizes whereby by removable Throttling element channel enclosed.

The utility model provides that the valve cage has multiple side notches.The solution regulation of the utility model, in valve cage Side is equipped with least one notch, is achieved in the pressure balance on valve cage as caused by the fluid for acting on end face.

So size of setting side acting surface (Wirkflaeche), i.e. or the neutralized of thrust is obtained, or Always realize the thrust towards valve chest.Following acting surface design is considered for this, here, the perforate side acting surface of valve cage is small In or equal to seat side acting surface.Thus avoid that fixed structure can be caused to take off disconnected power.Respective acting surface is certainly by respective direction The sum of face of upper effect obtains.

Pressure balance on the valve cage in the face of side adverse effect not only with flow direction FTO (flowing is opened) and All work in valve with flow direction FTC (flowing close), it is especially important that wherein FTO meets stream, because media flow is also right Valve cage is extracted from the state being fixed in housing and is contributed.

In this way, can load in it can be fitted into the same passage in the valve chest of valve cage has identical outside diameter With the valve cage of different internal diameters.

The difference of the end face of the adverse effect of the valve cage is unrelated with valve cage perforate size, because each ratio of the acting surface of side Example remains unchanged.

Therefore, valve casing physical efficiency with modular form equipped with different valve cages accordingly otherwise varied in terms of trafficability performance, Wherein, it is not necessary to change is taken on valve chest.

The valve cage being loaded into valve chest can be sealed by seal relative to valve chest.The ruler of perforate side acting surface It is very little to arrange generally according to seal radius, wherein, the size of this side acting surface is arranged generally according to the seat edge diameter of valve seat.

Valve seat can be integrally formed with valve cage, or be connected in the form of more than one piece with valve cage.

Valve cage can usually be realized in valve chest by flange installation, wherein, especially it is integrally formed in Flange on valve cage is connected through a screw thread to be connected with the valve chest.

In a special embodiment, said cage can have relative to shutting off in the region above perforate of shutting off The additional seal of element.It ensure that the discharge degree effect also produced when throttling element is opened for cages whereby, even if Throttling element is not when on closed position with seat edge mate.

According to another preferred embodiment, which is formed with plug form of shutting off, wherein, which has extremely A few side notch, and the plug that shuts off also preferably sealed relative to valve chest and thus also from pressure.Pass through the plug that shuts off Hole in end face, precompression are directed to the plug back side of shutting off.The power for acting on the plug that shuts off eliminates, until valve face area.Especially It is that this piston from pressure is also sealed in side face.

Brief description of the drawings

The further advantage, feature and possibility of the utility model are obtained from the explanation below in conjunction with embodiment shown in the drawings Using.

Term used in following reference numerals lists and right is employed in specification, claims and attached drawing The reference numeral answered, attached drawing are shown：

Fig. 1 is the sectional view of cage valve according to the present utility model；

Fig. 2 shows the detail view of the cage valve according to Fig. 1；And

Fig. 3 is the sectional view of two cage valves.

Reference numerals list

10 cage valves；

12 entrances；

14 outlets；

16 transition regions；

17 valve chests；

18 valve cages；

20 notches；

22 throttling elements；

24 main openings；

26 compensation perforates；

28 sides；

30 flanges；

32 notches；

33 seal areas；

36 sealing rings；

37 sealing rings；

38 sealing margins；

40 cage valves；

42 cage valves；

43 valve chests；

44 valve cages；

46 valve cages

Embodiment

Fig. 1 shows the sectional view of cage valve 10 according to the present utility model.There is cage valve 10 fluid inlet 12 and fluid to go out Mouth 14, they are interconnected by transition region 16.Load valve cage 18 in transition region 16, valve cage has multiple lack on the circumferential face Mouth 20, fluid to be controlled can flow to outlet side through the notch from entrance side.Section being axially movable is equipped with above valve cage 18 Fluid element 22, it surrounds the side face of valve cage 18 and covers or decontrol corresponding notch face according to its axial location, so as to logical The axial location for crossing throttling element 22 flows through cage valve 10 to adjust fluid.

In side, valve cage 18 conventionally has main opening 24, which allows fluid to flow into valve cage 18 or stream Go out valve cage 18.Therefore, fluid to be controlled is controlled by the main opening 24 in the end face and the notch in side face 20.

According to the utility model, valve cage 18 has at least another also in the side 28 opposed with main opening 24 of valve cage 18 A compensation perforate 26.Face size and compensation perforate 26 are so mutually coordinated, i.e. are deposited on two flow directions two end faces In the identical active area of almost size.The substantially neutralized of the withdrawal force on valve cage is realized in this way.

As shown in Figure 1, valve cage is connected by bolts is fixed on valve casing by the flange 30 being integrally formed on valve cage 18 In body 17.

In addition in the present embodiment, throttling element 22 equally has at least one side notch 32.In addition, throttling element 22 are sealed in the seal area 33 in its circumferential direction relative to valve chest 17 by sealing ring 37 so that throttling element 22 also from Pressure.

Describe the embodiment of the utility model in detail in the detail view of Fig. 2.

Fig. 2 shows detail view of the cage valve 10 in 18 region of valve cage.Throttling element 22 is in the closed position and with valve seat Sealing margin 38 coordinates to forbid fluid to flow through cage valve 10.As being clearly seen in the figure, valve cage 18 is opposite by sealing ring 36 Sealed in valve chest 17.Perforate side acting surface is related to the effective diameter of sealing ring 36, it is illustrated in this as D1.Sealing Circle 36 is installed on the oblique angle (Fase) between flange mounting portion and throttling element radial diameter herein.Sealing ring 36 can by Installed in the region of nearly main opening 24 towards straight axial ledge fixed structure.Opposed acting surface and the sealing margin 38 of valve seat Diameter it is related, it is pointed out with D2 in fig. 2.The notch 32 in notch 26 and throttling element 22 in valve cage 18, which is allowed in, to shut off Pressure balance on element 22 and valve cage 18, from without or only small withdrawal force act on flange connection.

Fig. 3 shows the sectional view of two cage valves 40,42 according to the present utility model, it has valve chest 43 respectively, in valve Each load a valve cage 44,46 in housing, the wherein valve cage 44,46 has different internal diameters.By the way that throttling element is designed Into outer plug and the notch by being opened in end face, two valve cages 44,46 can be directed to and obtain pressure balance, so that even with The small valve cage 46 of one internal diameter, there will not be withdrawal force and acts on connecting portion between valve cage 44,46 and valve chest 43.Pass through this Kind mode, can load the valve cage with different Nominal Widths in a valve chest, this allows to construct this with modular form The cage valve of utility model.

Claims

1. a kind of cage valve (10,40,42), which includes valve chest (17,43), the valve chest have connection entrance side (12) and The Circulation Area of outlet side (14), wherein removably loading valve cage (18,44,46), the wherein valve in the Circulation Area Cage (18,44,46) has multiple notches (20) also in its side wall, these notches can be by surrounding the valve cage (18,44,46) The throttling element (22) that can be moved axially it is covered, wherein the valve cage (18,44,46) has multiple side notches (26), it is characterized in that, the valve cage (18,44,46) with the seat side acting surface towards the throttling element and with back to The perforate side acting surface of seat side acting surface, wherein in the scram position of the cage valve, perforate side acting surface is less than Or equal to seat side acting surface.

2. cage valve according to claim 1, it is characterized in that, the valve cage (18,44,46) relative to the valve chest (17, 43) sealed by seal (36), wherein perforate side acting surface depends on the diameter of the seal (36).

3. cage valve according to any one of the preceding claims, it is characterized in that, in the throttling element (22) and the valve Seal (37) is set between cage (18,44,46) and/or valve chest (17,43).

4. cage valve according to claim 1, it is characterized in that, seat side acting surface depends on the sealing margin (38) of valve seat Diameter.

5. cage valve according to claim 1, it is characterized in that, the throttling element (22) has multiple side notches (32).

6. cage valve according to claim 1, it is characterized in that, the valve cage also has in addition to interception area and includes seat surface or seat The seat piece at edge.

7. cage valve according to claim 1, it is characterized in that, the valve cage is in single type or multi-piece design.

8. cage valve according to claim 1, it is characterized in that, the valve cage has flange (30), and the valve cage (18) passes through The flange and the valve chest (17) bolt-connection.