CN106567937A

CN106567937A - Control component for valve

Info

Publication number: CN106567937A
Application number: CN201510658531.4A
Authority: CN
Inventors: E·J·伯吉特; Y·张
Original assignee: Tescom Corp
Current assignee: Tescom Corp
Priority date: 2015-10-12
Filing date: 2015-10-12
Publication date: 2017-04-19

Abstract

The invention discloses a control component for a valve. The control component comprises a valve rod, wherein the valve rod can be moved to an opening position relative to a main body part of the valve from a closing position; at the closing position, a valve part of the valve rod part is jointed with a valve seat part; and at the opening position, the valve part deviates from the valve seat part; and one part of the valve rod part is movably arranged in a flowing hole. The control component also comprises a connector part; in addition, a connector hole is formed in the bottom surface of the connector part; and a first end of the valve rod part is arranged in the connector hole of the connector part.

Description

For the control assembly of valve

Technical field

Put it briefly, present disclosure is related to valve, more specifically, present disclosure is related to for valve Control assembly.

Background technology

Pressure regulator valve is used for various industry and residential application to control the downstream pressure of fluid.Should at some With in, regulating valve includes control assembly, and the control assembly includes the valve of the connector portion for extending and elongation Bar portion.Connector portion is suitable to by actuator (such as piston, its tip contact with connector portion) Carry out vertical shift.Generally, the bottom of connector portion include that diameter reduces (for example, which has for part The diameter of 0.9mm), flow orifice (for example, its tool for extending partially across valve seat of diameter diminution There is the diameter of 1.5mm).The basal surface of the part that the diameter reduces contacts the top surface of valve stem, valve The top surface of bar portion is adjoined with the valve portion of valve stem, wherein when adapter is moved up or down, valve Bar portion is engaged (engage) and disengages (disengage) (to close and open valve) with valve seat.Although even Connect the basal surface and valve stem of the part that the diameter in device portion reduces top surface bearing for it is low and in Deng inlet flow pressure (for example, 10k-15k psi) for performance it is good, but in higher entrance Pressure (for example, 20k psi) place, the bottom of the relatively thin of connector members is likely to occur failure or damage Wound, so as to cause the possible flexing in the bottom of connector portion.This failure or flexing may cause through The leakage of valve seat and inconvenience the and expensive replacement at least to control assembly.

The content of the invention

A kind of regulating valve, including main part, and entrance and exit is defined in the main part. The regulating valve 10 also includes being arranged between the entrance in the main part and the outlet Seat portion, and the seat portion includes composition surface.Flow orifice extends through the seat portion. The regulating valve also includes the valve stem of elongation, and the valve stem of the elongation is arranged on the main part In main aperture.The valve stem extends to second end, and the valve stem from first end along stem shaft Including the valve portion being arranged between the first end and second end.The valve stem is along described Stem shaft can be displaced to open position relative to the main part from make position, wherein, close described When closing position, the valve stem is engaged with the composition surface of the seat portion, in the opening During position, the valve stem deviates the composition surface of the seat portion along the stem shaft, from And allow fluid to flow to the outlet by the flow orifice from the entrance.The valve stem A part is movably provided in the flow orifice.The regulating valve also includes the connection of elongation Device portion, the connector portion of the elongation are arranged in the main aperture of the main part.The adapter Portion extends to second end from first end along connector shaft.It is being arranged on described in the connector portion Connecter hole is formed in basal surface at second end, and the first end of the valve stem is arranged on In the connecter hole of the connector portion.The connector portion is along the connector shaft from first Position can be displaced to the second position relative to the main part, wherein, at the first position, institute Valve stem is stated in the make position, in the second position, the valve stem is beaten in described Open position.

Description of the drawings

Fig. 1 is the profile of the embodiment of the regulating valve of the embodiment for including control assembly；

Fig. 2 is the more detailed profile of the embodiment of the regulating valve of Fig. 1；

Fig. 3 is in the close position with valve stem, control assembly embodiment profile；

Fig. 4 is in an open position with valve stem, control assembly embodiment fragmentary cross-sectional view；

Fig. 5 is the side view of the embodiment of valve stem；And

Fig. 6 is the fragmentary cross-sectional view of the embodiment of valve stem and connector portion.

Specific embodiment

As shown in Figure 1, regulating valve 10 includes main part 12, and limits in main part 12 Entrance 16 and outlet 18 are determined.Regulating valve 10 also includes seat portion 20, and wherein seat portion 20 is arranged Between the entrance 16 in main part 12 and outlet 18, and as shown in Figure 2, seat portion 20 include composition surface 22.Flow orifice 24 extends through seat portion 20.As shown in Figure 1, Regulating valve 10 also includes control assembly 15, and wherein control assembly 15 includes being arranged on main part 12 The valve stem 26 of the elongation in main aperture 27.With reference to Fig. 3, valve stem 26 is along stem shaft 28 from first End 30 extends to the second end 32, and valve stem 26 includes being arranged on first end 30 and the second end Valve portion 34 between 32.Valve stem 26 is along stem shaft 28 from make position (shown in Fig. 3) Open position (shown in Fig. 4) can be displaced to relative to main part 12, in make position, valve Portion 34 is engaged with the composition surface 22 of seat portion 20, and in open position, valve portion 34 is along valve rod Axle 28 deviates the composition surface 22 of seat portion 20, so as to allow fluid to pass through flow orifice from entrance 16 24 flow to outlet 18.The outer surface of composition surface 22 and valve portion 34 can be complementary, and connect The shape for closing the outer surface of surface 22 and valve portion 34 can be cone or conical butt.Valve A part for bar portion 26 is movably disposed in flow orifice 24.

As shown in Figure 1, control assembly 15 also includes the connector portion 36 of elongation, wherein connecting Device portion 36 is arranged in the main aperture 27 of main part 12.With reference to Fig. 3, connector portion 36 is along adapter Axle 38 extends to the second end 42 from first end 40.At the second end 42 for being arranged on connector portion 36 Connecter hole 44 is formed in the basal surface at place, and the first end 42 of valve stem 26 is arranged on adapter In the connecter hole 44 in portion 36.Connector portion 36 is along connector shaft 38 from first position (Fig. 3 Shown in) second position (shown in Fig. 4) can be displaced to relative to main part 12, First position, valve stem 26 are in the close position, and in the second position, valve stem 26 is in open position Put.

The connecter hole 44 of connector portion 36 is arranged in the first end 30 for being configured with valve stem 26 In the case of interior, control assembly 15 high entrance pressure (for example, 20k psi) and it is relatively low or Still keep stable under medium entrance pressure (for example, 10-15k psi) of person.

Regulating valve 10 is gone in more detail, and as shown in Figure 1, main part 12 can be elongation And second end 13 can be extended to from first end 11 along longitudinal axiss 48.With reference to Fig. 2, can be by Entrance 16 and outlet 18 are formed through the passages of main part 12, and entrance 16 can with it is vertical In the Part I 47 that main aperture 27 is extended up and into side of the axle 48 in normal direction, wherein first Part 47 extends along longitudinal axiss 48.Main body can be arranged to insert in the Part I 47 of main aperture 27 Enter part 50, and the threaded portion 51 of body insert 50 can be with the Part I 47 of main aperture 27 Threaded portion 52 is threadably engaged so that body insert 50 is fixed on main part 12.Insert Hole 54 can extend to the second end of body insert 50 from the first end of body insert 50, and Insert bore 54 can be alignd with longitudinal axiss 48.As shown in Figure 3, insert bore 54 can be with Including the first bore portion 56 and the second bore portion 58, and the diameter or width of the first bore portion 56 can With the diameter or width less than the second bore portion 58 so that intermediate point between the first end and a second end Place forms shoulder 59.First bore portion 56 can have constant section shape, such as example, Polygon, circle or ellipse.

As shown in Figure 3, regulating valve 10 can include seat portion 20, and seat portion 20 can have There is the disk-like shape containing basal surface 95, wherein basal surface 95 is formed in resting on insert bore 54 On the surface of shoulder 59.Through so setting, flow orifice 24 can with 48 co-axially align of longitudinal axiss, And the diameter of flow orifice 24 can be less than each in the first bore portion 56 and the second bore portion 58 The diameter of item.

As shown in Figure 3, regulating valve 10 can also include keeper 60, and keeper 60 can be with It is arranged in main aperture 27, and at least a portion of the keeper can be arranged on the first of main aperture 27 In part 47.Keeper 60 can extend to second end 63 from first end 64 along central shaft, and The central shaft can be alignd with longitudinal axiss 48.Second end 63 can be arranged on the top surface of seat portion 20 It is at 65 or adjacent with top surface 65, and basal surface (its setting of the flange part 66 of keeper 60 At first end 64) can contact with a part for the first end of body insert 50 or adjacent. The cylindrical outer surface of keeper 60 can with body insert 50 in the second bore portion 58 is limited Fixed surface directly adjoins.The threaded portion 61 of keeper 60 can be with the second of body insert 50 The threaded portion 62 of bore portion 58 is threadably engaged so that keeper 60 is fixed to main body insertion Part 50 (and main part 12).

Keeper bore 68 can extend to the second end of keeper 60 from the first end 64 of keeper 60 63, and keeper bore 64 can extend along longitudinal axiss 48.Keeper bore 68 can be from first end 64 to the point adjacent with the second end 63 have constant section shape (for example, polygon, circle or It is oval).Constant section shape can have width W1 (that is, certain with longitudinal axiss 48 in normal direction One distance), and width W1 can be Breadth Maximum.The second end 63 is adjacent to, width is from constant width Degree W1 is reduced to the diameter for being substantially equal to flow orifice 24.The width W1 of keeper bore 68 can be big Cause the diameter of the first bore portion 56 equal to insert bore 54.

As previously described, the control assembly 15 of regulating valve 10 also includes the connector portion 36 of elongation, Wherein connector portion 36 is arranged in the main aperture 27 of main part 12, and connector portion 36 is at least A part of (that is, the second end 42) can be arranged in the Part I 47 of main aperture 27.Connector portion 36 can extend along connector shaft 38, and connector shaft 38 can be alignd with longitudinal axiss 48.Even Meet device portion 36 and can have junction surface 70 and body 72, wherein junction surface 70 is prolonged from first end 40 Intermediate point 71 is reached, and body 72 extends to the second end 42 from intermediate point 71.Junction surface 70 It is suitable to be contacted by the part (for example, piston 75 (see Fig. 1)) of valve, the contact applies along adapter The power (that is, downward power) that axle 38 is pointed to towards second end 42 of connector portion 36.This area skill Art personnel will be recognized that, the Fluid pressure in the cavity 93a (and/or 93b) of main part 12 can make Piston 75 is shifted, or can by component 91 in be coupled to diaphragm assembly 92 it is a part of come Shift piston, as shown in Figure 1.In the presence of this downward power, connector portion 36 Relative to keeper 60 and main part 12, along connector shaft 38 towards the second end of main part 12 13 translations.

The body 72 of connector portion 36 can have constant section shape, the constant section shape Shape generally can be corresponding with the section shape of keeper bore 68.If that is, keeper bore 68 Section shape with square (or hexagon), then the body 72 of connector portion 36 is with side The section shape of shape (or hexagon).But, the width W2 of the body 72 of connector portion 36 (for example, Breadth Maximum W2) can be less than the width W1 of keeper bore 68 so that body 72 There is gap and keeper bore 68 between.

Keeper bore 68 can have constant section to 63 adjacent point of the second end from first end 64 Shape (for example, polygon, circle or ellipse).The constant section shape can have width W1 (that is, with a certain distance of the longitudinal axiss 48 in normal direction).It is adjacent to the second end 64, width is from constant Width W1 be reduced to the diameter for being substantially equal to flow orifice 24.The width W1 of keeper bore 68 May be approximately equal to the diameter of the first bore portion 56 of insert bore 54.The first of connector portion 36 Position (shown in the Fig. 3 in the close position of valve stem 26), intermediate point 71 and keeper 60 the second end 64 adjoins.Equally in the first position, guarantor is deviateed at second end 42 of connector portion 36 Second end 63 of holder 60.In the basal surface 46 being arranged at the second end 42 of connector portion 36 Middle formation connecter hole 44, and the first end 42 of valve stem 26 is arranged on the connection of connector portion 36 In device hole 44.Basal surface 46 can have the combination of any appropriate shape or shape, to allow valve The first end 42 of bar portion 26 is suitably disposed in connecter hole 44.For example, basal surface 46 can be with Be plane or can be with connector shaft 38 be in normal direction.In first position, basal surface 46 can Being with a distance from 65 first longitudinal direction of top surface of seat portion 20, and in the second position, basal surface 46 Can be that, with a distance from 65 second longitudinal direction of top surface of seat portion 20, and first longitudinal direction distance can be big In second longitudinal direction distance.Connecter hole 44 can have any appropriate section shape and depth, as follows What face will be described in further derail.

With reference to Fig. 3, the control assembly 15 of regulating valve 10 also includes the valve stem 26 of elongation, wherein stretching Long valve stem 26 is arranged in the main aperture 27 of main part 12, and at least of valve stem 26 Point (for example, 26) whole valve stem can be arranged in the Part I 47 of main aperture 27.Valve stem 26 extend to second end 32 from first end 30 along stem shaft 28, and stem shaft 28 can with it is vertical Align to axle 48 (and/or connector shaft 38).With reference to Fig. 5, valve stem 26 can include auxiliary section 74th, matrix part 76 and valve portion 34, and valve portion 34 can be arranged on auxiliary section 74 and matrix part 76 Between.Auxiliary section 74 can be along stem shaft 28 from first end 78 (in the first end of valve stem 26 At 30) extend to the second end 80 (adjoining with the top of valve portion 34).The depth of connecter hole 44 can Being a certain distance between the 5% to 25% of the length of auxiliary section 74.

Auxiliary section 74 can have appropriate section shape and length (along stem shaft 28), to allow Connector portion 36 is shifted down into the second position (as shown in Figure 4) from first position, so as to Valve portion 34 is departed from from the composition surface 22 of seat portion 20.For example, auxiliary section 74 can have perseverance The section shape of fixed or substantial constant, and the constant section shape generally can be connected The section shape of the connecter hole 44 in device portion 36 is corresponding.In other embodiments, at least (or Only) auxiliary section 74 top 81 (for example, or 46 He of basal surface that is suitable in connector portion 36 Part between the first end 78 of auxiliary section 74) can have generally can be with the company of connector portion 36 Connect the corresponding section shape of the section shape in device hole 44.In certain embodiments, auxiliary section 74 (or Person at least top is 81) and connecter hole 44 can have such as polygon, circular or ellipse. As shown in Figure 6, connecter hole 44 Breadth Maximum W3 (for example, maximum gauge (if If section shape is circle)) slightly larger than (for example, big 3% to 10%) auxiliary section 74 (or extremely Few top Breadth Maximum W4 (for example, maximum gauge (if section shape is circle)) 81). The Breadth Maximum W3 of connecter hole 44 can be 10% to 80% of the width W2 in connector portion 36 Between a certain distance.

Connecter hole 44 can have appointing for the first end 30 for being used to fully fixing valve rod assembly 26 What appropriate depth, such as example, about 1mm.In certain embodiments, connecter hole 44 Depth can be between the 10% to 80% of the width W2 of connector portion 36.Connector portion 36 Between basal surface 46 and cross-drilled hole surface 82 (which can be such as plane or substantially planar) Fore-and-aft distance D1 can have any appropriate value, such as about 1mm.For example, fore-and-aft distance D1 May be approximately equal to the Breadth Maximum W3 of connecter hole 44.It would be recognized by those skilled in the art that working as When connector portion 36 is translated along connector shaft 38 is downward (such as example, in by Fig. 1 Shown diaphragm assembly 92 in known manner to be translated when), in cross-drilled hole surface 82 and valve rod Contact between the part (for example, top surface) at the top 81 in portion 26 causes valve stem along valve Bar axle 28 moves to open position from make position.

With reference to Fig. 4, auxiliary section 74 can be set and (or extend through valve seat at least in auxiliary section 74 A part for the flow orifice 24 in portion 20) shape and size so which is removably received by or sets Put in the flow orifice 24 of seat portion 20.Additionally, in 26 (Fig. 4 in an open position of valve stem Shown in), auxiliary section 74 can be set and (or extend through valve seat at least in auxiliary section 74 A part for the flow orifice 24 in portion 20) shape and size so that auxiliary section 74 surface and There is the first clearance G 1 between the surface being defined to flow orifice 24.In the open position, from Entrance 16 flow to the fluid of outlet 18 and can flow through the first clearance G 1.

With reference to Fig. 5, the valve stem 26 of elongation includes matrix part 76, and wherein matrix part 76 is from valve portion 34 Bottom extend to the second end 32 of valve stem 26.Matrix part 76 can include pars intermedia 84, middle Portion 84 can extend between intermediate point 85 in the bottom of valve portion 34, and wherein intermediate point 85 is arranged on Between the bottom of valve portion 34 and the second end 32 of valve stem 26.In certain embodiments, pars intermedia 84 The second end 32 of valve stem 26 can be extended to from the bottom of valve portion 34.

Pars intermedia 84 can have a certain longitudinal length so that in an open position in valve stem 26, Pars intermedia 84 extends to the first hole of the insert bore 54 of (or exceeding) body insert 50 The end (see Fig. 3) of part 56.The shape and size of pars intermedia 84 can be set so that its movably Accommodate or be arranged in the first bore portion 56, and the section shape of pars intermedia 84 generally can be with the The section shape of one bore portion 56 is corresponding.It is in an open position (shown in Fig. 4 in valve stem 26 Go out), the shape and size of pars intermedia 84 can be set so that on the surface of pars intermedia 84 and to There is the second clearance G 2 between the surface that one bore portion 56 is defined (see Fig. 3).In the open position Put, the fluid for flowing to outlet 18 from entrance 16 can flow through the second clearance G 2.

In certain embodiments (for example, as shown in Figure 5), annular elastomeric spring abutment 86 can enclose Around the circumference of matrix part 76, (for example, matrix 76 is at pars intermedia 84 and the second end 32 of valve stem 26 Between circumference) extend.As shown in Figure 2, spring base 86 may be adapted to contact and can be set A part for the coil spring 88 in main aperture 27 is put, valve stem 26 is biased to make position by this. Fig. 5 is referred again to, matrix part 76 can include end 90, and its medial end portions 90 extends from spring base 86 (or, if spring base 86 is not used, from the second end of intermediate point 85 to valve stem 26 32). End 90 can be cylinder and can have the diameter and spring base 86 for being less than coil spring 88 Overall diameter diameter.

The connecter hole 44 of connector portion 36 is arranged in the first end 30 for being configured with valve stem 26 In the case of interior, control assembly 15 demonstrates the stability improved than conventional control component.That is, The first end 30 of the valve stem 26 being arranged in the connecter hole 44 of connector portion 36 provide " Gu Rationed marketing " pillar, " freely the fixing " for being somebody's turn to do " steady pin " column display than conventional control component are held The stability of raising, this is consistent with the post analysis using Euler's formula.Therefore, it is disclosed herein Fixed pin column type in high entrance pressure (for example, 20k psi) and relatively low or medium entrance Still keep in the case of pressure (for example, 10k-15k psi) stable.

Although various embodiments are described above, present disclosure is not intended to be limited to this A little embodiments.The disclosed embodiments can be made with various modifications, these modifications are still in appended power In the range of profit is required.

Claims

1. a kind of regulating valve, including：

Main part, which has the entrance and exit (18) being limited in the main part (12)；

Seat portion, which is arranged between the entrance in the main part and the outlet, the valve Portions include composition surface and flow orifice, and the flow orifice extends through the seat portion；

Control assembly, the control assembly include：

The valve stem of elongation, which is arranged in the main aperture of the main part, and along stem shaft The second end is extended to from first end, the valve stem includes being arranged on the first end and described Valve portion between second end, the valve stem is along the stem shaft from make position relative to institute State main part and can be displaced to open position, in the make position, the valve stem and the valve The composition surface of portions is engaged, and in the open position, the valve stem is along described Stem shaft deviates the composition surface of the seat portion, so as to allow fluid logical from the entrance Cross the flow orifice and flow to the outlet, and wherein, a part for the valve stem can It is movably arranged in the flow orifice；And

The connector portion of elongation, which is at least partially disposed in the main aperture of the main part And second end is extended to from first end along connector shaft, wherein, it is being arranged on the company Form connecter hole in connecing the basal surface at second end in device portion, and wherein, the valve The first end of bar portion is arranged in the connecter hole of the connector portion, wherein, institute State connector portion to be displaced to relative to the main part along the connector shaft from first position The second position, wherein, in the first position, the valve stem is in the make position, In the second position, the valve stem is in the open position.

2. regulating valve according to claim 1, wherein, the valve stem includes auxiliary section, institute The first end that auxiliary section extends to the valve stem from the valve portion is stated, the extension is extended through Cross the flow orifice and with the Breadth Maximum less than the Breadth Maximum of the flow orifice.

3. regulating valve according to claim 1, wherein, the auxiliary section has circular section shape Shape.

4. regulating valve according to claim 2, wherein, the Breadth Maximum of the auxiliary section is less than The Breadth Maximum of the valve portion.

5. regulating valve according to claim 1, wherein, the stem shaft and the connector shaft It is co-axially align.

6. regulating valve according to claim 1, wherein, the composition surface of the seat portion Shape with cone.

7. regulating valve according to claim 1, wherein, the valve stem includes annular elastomeric spring abutment, The annular elastomeric spring abutment is arranged between second end of the valve stem and the valve portion.

8. regulating valve according to claim 1, wherein, keeper is arranged on the main part In the main aperture, and at least a portion of the connector portion is arranged on the keeper of the keeper In hole.

9. regulating valve according to claim 1, wherein, the depth of the connecter hole is substantially etc. In the Breadth Maximum of the connecter hole.

10. a kind of control assembly for regulating valve, the control assembly include：

The valve stem of elongation, which extends to second end, the valve stem bag from first end along stem shaft The valve portion being arranged between the first end and second end is included, the valve stem fits along institute State main part of the stem shaft from make position relative to the regulating valve and can be displaced to open position, in institute Make position is stated, the valve portion is engaged with the composition surface of seat portion, in the open position, institute State the composition surface that valve portion deviates the seat portion along the stem shaft, so as to allow fluid from The entrance of the regulating valve flow to the outlet of the regulating valve by the flow orifice of the seat portion； And

The connector portion of elongation, the connector portion extend to second end from first end along connector shaft, Wherein, connecter hole is formed in the basal surface being arranged at second end of the connector portion, And wherein, the first end of the valve stem is arranged on the adapter of the connector portion In hole, wherein, the connector portion fits along the connector shaft from first position relative to described The main part of regulating valve can be displaced to the second position, at the first position, the valve stem In the make position, in the second position, the valve stem is in the open position.

11. control assemblies according to claim 10, wherein, the valve stem includes auxiliary section, The auxiliary section extends to the first end of the valve stem from the valve portion, and the extension is suitable to Extend through the flow orifice and with less than the Breadth Maximum of the flow orifice maximum wide Degree.

12. control assemblies according to claim 11, wherein, the auxiliary section has circular Section shape.

13. control assemblies according to claim 11, wherein, the Breadth Maximum of the auxiliary section Less than the Breadth Maximum of the valve portion.

14. control assemblies according to claim 10, wherein, the stem shaft and the connection Device axle is co-axially align.

15. control assemblies according to claim 10, wherein, the engagement of the seat portion Surface has the shape of cone.

16. control assemblies according to claim 10, wherein, the valve stem includes annular elastomeric Spring abutment, the annular elastomeric spring abutment are arranged between second end of the valve stem and the valve portion.

17. control assemblies according to claim 10, wherein, the depth of the connecter hole is big Cause the Breadth Maximum equal to the connecter hole.