CN102691816B - A kind of interchangeable valve gear for fluid conditioner - Google Patents

Abstract

It is described herein a kind of interchangeable valve gear for fluid conditioner.Example valve device includes the first keeper, and it is removably coupled to the fluid flowing passage of the fluid conditioner between entrance and outlet.First keeper includes having for receiving the first shell that flowing controls the first vestibule of assembly, and has the first opening alignd with the first bore coaxial, determines the first aperture of fluid flowing passage being coupled to the fluid conditioner time limit at keeper.Fluid conditioner also includes the second keeper being different from the first keeper and can exchanging with it, wherein, second keeper includes having for receiving the second housing that flowing controls the second vestibule of assembly, and there is the second opening alignd with the second bore coaxial, determine the second aperture of fluid flowing passage being coupled to the fluid conditioner time limit at the second keeper.First keeper provides first fluid flow behavior, and the second keeper provides the second fluid flow behavior being different from first fluid flow behavior.

Description

A kind of interchangeable valve gear for fluid conditioner

Technical field

The present invention relates generally to a kind of fluid conditioner, is used for flowing more particularly, to one The interchangeable valve gear of body actuator.

Background technology

Fluid conditioner is typically distributed in whole Process Control System, to control various fluid (example Such as liquid, gas etc.) pressure.Fluid conditioner is typically used in and is regulated extremely by the pressure of fluid The value of constant.Specifically, fluid conditioner has entrance, and its generally reception is in relatively high The supply fluid of pressure, and provide the most lower and substantially constant pressure in exit.

In order to regulate downstream pressure, fluid conditioner generally includes sensing element or barrier film, with The back pressure that sensing is in fluid communication with downstream pressure.Valve gear is arranged in fluid flowing passage, To control or to regulate the fluid flowing in the aperture flow through between entrance and outlet.Valve gear typically wraps Including flow control components, it is relative to the seating surface in aperture or the valve seat limiting fluid flowing passage It is moveable.Have given port size or geometry fluid conditioner provide to Specific or maximum fluid fluid ability under fixed pressure drop or flow velocity (such as, fluid stream Dynamic coefficient).In order to provide different fluid fluid ability, to often change or change flowing control Component processed, keeper and/or valve seat, to be characterized as aperture providing desired fluid fluid ability. In some instances, in order to be sufficiently accurate it may be desired to there is various sizes of valve body (such as, various sizes of fluid stream Dynamic passage) different fluid actuator with specific aperture, reach desired rate of flow of fluid, Ability or flow coefficient.

Summary of the invention

In an example, the first keeper is removably coupled to the stream between entrance and outlet The fluid flowing passage of body actuator.Described first keeper includes having outside the first of the first vestibule Shell, is used for receiving flowing and controls assembly, and described first keeper has and described first vestibule First opening of co-axially align, to limit institute when described keeper is coupled to described fluid conditioner State the first aperture of fluid flowing passage.Fluid conditioner also includes being different from described first keeper And the second keeper that can exchange with it, wherein, described second keeper includes having the second hole The second housing in chamber, is used for receiving described flowing and controls assembly.Described second keeper has and institute State the second opening of the second bore coaxial alignment, to be coupled to described fluid at described second keeper The second aperture of described fluid flowing passage is limited during actuator.Described first keeper provides first Fluid flow characteristics, and described second keeper provide be different from described first fluid flow behavior Second fluid flow behavior.

In another example, fluid conditioner includes spool, and it is removably coupled to described stream The valve body of body actuator, to limit the fluid flowing passage between the entrance of described valve body and outlet At least partially.It is multiple different, interchangeable that described spool includes for described fluid conditioner Keeper, the most each holder has aperture, with limit described fluid conditioner each not Same fluid fluid ability.Described spool also includes: flowing controls assembly, and it is arranged on selected from institute State in the chamber of the first keeper of multiple keeper；Also including containment member, it is coupled to described One end of first keeper, to be maintained at described flowing control assembly in described chamber.

In a further example, modular valve gear includes first keeper with the first chamber, For receiving moveable flow control components and there is the first shoulder of restriction the first valve seat.? When described first keeper is coupled to described fluid conditioner, described first valve seat limits provides described First aperture of the first fluid fluid ability of fluid conditioner.Bracket is arranged on described first chamber In, and be moveable relative to described first valve seat, to control the stream by described first aperture Body flows, and sealing member is coupled to one end of described first keeper, to be kept by described bracket In described first chamber of described first keeper.Described valve gear also includes can be with described The second keeper that one keeper exchanges and is different from, wherein said second keeper has second Chamber, to receive described moveable flow control components, and has the second of restriction the second valve seat Shoulder.Described second valve seat is limited to described second keeper and is coupled to during described fluid conditioner carry For the second aperture of second fluid fluid ability, described first fluid fluid ability is different from described the Two fluid fluid abilities.

Accompanying drawing explanation

Fig. 1 shows known fluid conditioner.

Fig. 2 shows the fluid conditioner with exemplary valve spool described here.

Fig. 3 shows the exemplary valve spool of Fig. 2.

Fig. 4 shows the fluid conditioner with another exemplary spool described here.

Fig. 5 shows the exemplary valve spool of Fig. 4.

Detailed description of the invention

Exemplary modular valve gear described here or spool achieves different Interchangeability between keeper, each keeper can be coupled to fluid conditioner, to provide not Same respective fluid fluid ability.Especially, exemplary modular valve described here Device can include for fluid conditioner, multiple different and interchangeable keeper, wherein, Each holder has aperture, and under the given pressure drop on fluid conditioner, this aperture limits stream The different maximum fluid fluid ability of body actuator or flow velocity.Such as, Peak Flow Rate can With flow coefficient (C_v) relevant, this flow coefficient (C_v) at the standard conditions classification or It is to predict the flow velocity by fluid conditioner.Such as, this flow coefficient value can be defined as in hole Under the pressure drop of the pound per square inch (psi) on mouth, the water of the 60 °F fluid that flows through per minute is adjusted The amount of the U.S. gallon of joint device.

Owing to spool described here provides interchangeability, therefore, it can to need less always Parts provide and flow than the fluid of traditional a greater variety of fluid conditioner of fluid conditioner Characteristic or ability.In other words, by exemplary valve spool described here, it is possible to be not required to As known valve gear or fluid conditioner typically require, to manufacture and to take inventory valve seat, valve The combination that each of body and/or aperture configuration are possible, with provide different fluid fluid abilities or It it is fluid flow characteristics.Alternatively, it is only necessary to manufacture and stock is interchangeable or removable Keeper parts, and use different keepers to adapt to special application as required.

In other words, when still using identical flowing to control component parts or part, can make One group of flow behavior is provided with interchangeable keeper.Such as, valve gear is used substantially Identical parts, each keeper can have various sizes of aperture, to provide and about slightly More than the fluid flow characteristics that the fluid flow coefficient between zero-sum 0.50 is relevant.Such as, first Keeper can have the fluid energy of flow provided by the flow coefficient classification being such as about 0.06 The aperture of power, and the second keeper can have offer and divide by the flow coefficient being such as about 0.2 The aperture of the fluid fluid ability of class.Additionally, keeper can be configured to receive the most similar Fluid-flow assembly, and can be configured to be coupled to the similar valve body of fluid conditioner.

Additionally, example retainer described here can include one or the flowing of multiple fluid Path, to support by being suitably sized to provide the bigger or aperture of the fluid fluid ability increased The flow velocity of the increase caused.Such as, the flange of keeper can include one or more fluid Flow path, it is substantially perpendicular to the aperture of fluid conditioner, with fluidly couple aperture with The sensing chamber of fluid conditioner.

Before example fluid regulator described here is discussed, it is right to provide in FIG The brief description of known fluid conditioner 100.With reference to Fig. 1, example fluid regulator 100 Including being threadably coupled to the valve body 102 of bonnet 104, this valve body 102 is limited to entrance 106 And the fluid passage between outlet 108.Load component 110 is arranged in bonnet 104, with Thering is provided load to barrier film 112, wherein, described load is corresponding to desired fluid outlet pressure. Barrier film 112 is placed between bonnet 104 and valve body 102, so that described barrier film 112 and institute Stating valve body 102 and limit sensing chamber 114, this sensing chamber 114 is via passage 116 and outlet 108 Fluid communication.

Fluid conditioner 100 includes valve gear or assembly 118, to control to adjust through fluid The fluid flowing of joint device 100.Valve gear 118 includes bracket (poppet) 120 and biasing unit Part 122, it is arranged in the vestibule 124 of valve body 102.Bracket 120 also includes valve rod 126, It is operatively coupled to barrier film 112 and bracket 120.Valve seat 128 is arranged in vestibule 124, And be bearing on the shoulder 130 of vestibule 124.Keeper 132 is threadably coupled to valve body 102 Vestibule 124, so that valve seat 128, biasing element 122 and bracket 120 are maintained at valve body 102 Vestibule 124 in.Biasing element 122 is arranged between keeper 132 and valve seat 128, with Bracket 120 is made to bias towards valve seat 128.

In operation, according to the pressure difference on the opposite side of barrier film 112, make barrier film 112 Move relative to valve rod 126, so that bracket 120 moves relative to valve seat 128.Barrier film 112 relative to (such as engage), valve rod 126 moves, so that bracket 120 is relative to valve Seat 128 moves, with the fluid flowing between regulation or modulation entrance 106 and outlet 108.Add The fluid of pressure flows between entrance 106 and outlet 108, until on the opposite side of barrier film 112 Dynamic balance.

Bracket 120, keeper 132 and valve seat 128 provide the fluid of fluid conditioner 100 Fluid ability, characteristic or performance.Especially, valve seat 128 includes opening 134, and Keeper includes opening 136, and they limit together is flowed by the fluid of fluid conditioner 100 The fluid orifice 138 of passage.Aperture 138 limits or controls the fluid of fluid conditioner 100 Fluid ability.Such as, aperture 138 can provide corresponding to fluid flow coefficient is the fluid of 0.06 Fluid ability.

The opening 136 of keeper 132 and opening 134 co-axially align of valve seat 128, its chi Very little the most similar to the opening 134 of valve seat 128, thus it is coupled to valve at keeper 132 During body 102, the main part 140 of keeper 132 supports valve seat 128.Formation has size ratio The keeper 132 of the opening that the opening 134 of valve seat 128 is big can be provided that to valve seat 128 not Sufficiently supporting.

Therefore, in order to provide different fluid fluid abilities or characteristic, it may be necessary to different Valve seat and/or keeper.Such as, the keeper 132 of fluid conditioner 100 and valve seat 128 Available another valve seat with various sizes of opening and keeper are replaced.Such as, in order to provide Bigger fluid fluid ability, it is possible to make the size of the opening of valve seat 128 and keeper 132 divide Bigger than the size of the opening 134 and 136 of valve seat 128 and keeper 132.But, fluid The fluid flow path (such as vestibule 124) of actuator 100 is not enough to (such as size is the least) Operation or the fluid flowing supported and provided by the aperture allowing bigger fluid fluid ability The rate of flow of fluid that performance or ability are correlated with.Accordingly, it may be desirable to have bigger fluid flowing Other valve body of passage (the biggest vestibule 124) realizes desired one or many Individual flow behavior.As a result of which it is, need greater number of parts to provide fluid conditioner relatively The fluid flow characteristics of multiple types or ability, thereby increase manufacture and inventory cost.

Fig. 2 shows that the exemplary fluid with spool or valve gear 202 described here is adjusted Joint device 200.With reference to Fig. 2, example fluid regulator 200 includes regulator body 204, its Have and couple (threadably coupling) to lower main part or the upper main part of valve body 208 or valve Cap 206.Valve body 208 is formed between the entrance 210 and outlet 212 of fluid conditioner 200 Fluid flowing passage.Barrier film 214 is placed between valve body 208 and bonnet 206, so that First side 216 of barrier film 214 limits load cell 218, to receive load component with bonnet 206 220.Second side 222 of barrier film 214 and the inner surface 224 of valve body 208 limit sensing chamber 226. Sensing chamber 226 is fluidly coupled to export 212 via passage 228, and senses at outlet 212 The pressure of fluid.

Load component 220 is operatively coupled to barrier film by diaphragm plate or pad 230 214, and provide reference force or load (such as pre set force) to barrier film 214.In this example, Load component 220 includes biasing element 232 (such as spring), and it is arranged on load cell 218 In, load is provided to barrier film 214 by biasing element 232 by dividing plate 230.Biasing element 232 Between dividing plate 230 and spring button 234, spring button 234 can be grasped by screw 238 It is coupled to spring-loaded governor 236 with making.Spring-loaded governor 236 is moved by spring button 234 Biasing element 232, is applied to barrier film with regulation (being such as increased or decreased) biasing element 232 Pre set force on first side 216 of 214 or the amount of load.Such as, spring-loaded governor 236 court First direction (such as clockwise) or the rotation of second direction (such as counterclockwise) The change of team changes the decrement of biasing element 232 and (such as compresses spring element 232 or subtract Pressure), and therefore change the load capacity being applied on the first side 216 of barrier film 214.

In order to control or modulate the fluid flowing between entrance 210 and outlet 212, fluid Actuator 200 uses valve gear or spool 202.The valve gear 202 of shown example sets Putting in the vestibule or opening 242 (such as threaded openings) of valve body 208, described valve body limits Surely the inlet 244 of entrance 210 it is fluidly coupled to.Valve gear 202 is operatively coupled to Barrier film 214, thus the pressure reduction between barrier film 214 both sides based on barrier film 214 216 and 222 Valve gear 202 is made to allow open position and the restriction fluid flows through passageway of fluid flows through passageway Move between closed position.

Fig. 3 is the enlarged drawing of the valve gear 202 of Fig. 2.The valve gear 202 of shown example It it is the subassembly being removably coupled to valve body 208.Valve gear 202 include interchangeable or Removable shell or keeper 302, flowing control assembly 304 and cut-off component or mistake Filter 306.

The keeper 302 of shown example is the cylinder-shaped body with threaded portion 308, Valve gear 202 to be threadably coupled to the opening 242 of the valve body 208 of fluid conditioner 200. Keeper 302 includes chamber or vestibule 310, to be coupled to valve body 208 at valve gear 202 Time at least partially define the fluid flowing passage of fluid conditioner 200.Keeper 302 and hole Chamber 310 forms the shoulder 312 with the opening 314 with vestibule 310 co-axially align, to protect Holder 302 is coupled to valve body 208 time limit and determines the fluid orifice 316 of fluid conditioner 200.Special Not, aperture 316 provides the specific or maximum fluid energy of flow of fluid conditioner 200 Power or fluid flow characteristics.Such as, aperture 316 can have offer and corresponds approximately to be 0.06 The diameter of maximum fluid fluid ability of flow coefficient or size.

In shown example, shoulder 312 limits the valve seat 318 of fluid flowing passage. Additionally, keeper 302 includes the flange 320 with fluid flow path 322, fluid flows Path 322 has Part I or the entrance of outlet 326 fluid communication with valve seat 318 324 and the Part II that is in fluid communication with sensing chamber 226 (Fig. 2) or outlet 328.Fluid That flow path 322 is supported to be provided by aperture 316 and fluid fluid ability (or fluid stream Dynamic coefficient) relevant rate of flow of fluid.The fluid flow path 322 of shown example is substantially It is perpendicular to opening 314 and/or vestibule 310, and is positioned at the downstream of valve seat 318.Additionally, convex The upper surface 321 of edge 320 can include one or multiple opening (not shown), to allow stream Body flows to sensing chamber 226.In other example, removable upper surface 321.As schemed Showing, keeper 302 has T section shape or profile.But, in other instances, Keeper 302 can be any suitable cross sectional shape or profile.

Flowing control assembly 304 be arranged in vestibule 310, with control entrance 210 with go out Flowed by the fluid in aperture 316 between mouth 212.Especially, keeper 302 (such as hole Chamber 310 and shoulder 312) limit common flowing control component interface.In this example, stream The dynamic assembly 304 that controls includes mobile stool 330 and biasing element 332 (such as spring). Bracket 330 is arranged in the vestibule 310 of keeper 302, and relative to the shoulder of keeper 302 Portion 312 or valve seat 318 moves.Bracket 330 includes engaging the support provided by valve seat 318 The sealing surface 334 in face 336.Especially, the sealing surface 334 of bracket 330 and valve seat 318 Seating surface 336 has conical by its shape or profile, thus a part 337 for sealing surface 334 is close Feud engages valve seat 318, with the essence when valve gear 202 is in the closed position shown in Fig. 3 The fluid flowing in aperture 316 is flow through in upper restriction or prevention.In this example, bracket 330 The shape of the seating surface 336 of the shape of sealing surface 334 or profile and valve seat 318 or profile Complementary.

Tray retainer 338 is coupled to bracket 330, to keep this bracket 330.Although not shown, But the base 339 of tray retainer 338 has square sectional, so that outside base 339 Edge (not shown) is away from the inner surface 441 of vestibule 310, to allow at entrance 210 and valve Fluid flowing between seat 314.In other words, tray retainer 338 does not interferes with fluid and flows through Vestibule 310 also flow to valve seat 314.Biasing element 332 is arranged on the shoulder of tray retainer 338 In vestibule 310 between portion 340 and spring base 342, so that bracket 330 is inclined towards valve seat 318 Put.Adapter valve rod or push rod 344 are coupled to bracket 330, with operationally by bracket 330 It is coupled to barrier film 214 (Fig. 2).One end 346 of adapter valve rod is at the upper table of flange 320 In the opening 348 in face 321 directed (the most wherein slide).

In this example, valve gear 202 also includes the filter 306 being coupled to keeper 302 (such as sintering metal or screen cloth (screen)).Filter 306 is arranged on inlet 244 Interior (Fig. 2), to filter or to prevent impurity (such as chip, pollutant) incoming fluid stream In dynamic passage.In this example, one end 350 of keeper 302 include tab (tab), Clip or finger 352, to receive the enlarged 354 of filter 306.More specifically, Filter 306 is coupled to keeper by crimping, press-fit, snap-fit engagement, interference engagement etc. One end 350 of 302.Therefore, in addition to the impurity in fluid flow passage filters, Fluid control components 304 is kept or maintains the vestibule of keeper 302 by filter 306 In 310.In other instances, filter may be provided in vestibule 310, and valve gap may be coupled to One end 350 of keeper 302, to be maintained at flowing control assembly 304 in vestibule 310.

In order to provide the sealing between sensing chamber 226 and inlet 244, valve gear 202 Including sealing member 356.Sealing member 356 (such as O) is arranged on the guarantor of valve gear 202 Between the valve body 208 of holder 302 and fluid conditioner 200.Additionally, sealing member 356 sets Put between the screw thread 308 of sensing chamber 226 and keeper 302, to prevent impurity from passing through sensing Room 226 and between threaded portion 308 and fluid flowing passage flow.

In operation, with reference to Fig. 2 and Fig. 3, example fluid regulator 200 passes through entrance The upstream of 210 fluids (such as gas) being fluidly coupled to such as provide relatively high pressure Pressure source, and be fluidly coupled to the upstream device of such as low pressure by outlet 210 or be System.The back pressure flowing through the fluid of fluid conditioner 200 is regulated extremely by fluid conditioner 200 The desired pressure corresponding with the default load provided by adjustable load component 220.

In order to realize desired back pressure, (such as towards clockwise or counter clockwise direction) Rotating spring actuator 236, is applied to barrier film 214 to increase or to reduce by biasing element 232 The first side 216 on load.By the load regulation provided by biasing element 232 to corresponding to Desired back pressure.According to the base pressure set, sensing chamber 226 is via passage 228 The pressure of the pressure fluid at sensing outlet 212, this makes barrier film 214 in response to sensing chamber Pressure in 226 changes and moves.

Such as, when downstream demand reduces, the pressure exporting the fluid at 212 increases.When When the pressure of the pressure fluid in sensing chamber 226 increases, the pressure of fluid can be at barrier film 214 Exert a force on second side 222, so that barrier film 214 and biasing element 232 are towards away from stem connector The direction of 344 is moved in the way of linear motion.Then, the biasing element 332 of valve gear 202 Bracket 330 can be made to move towards valve seat 318, to limit the stream between entrance 210 and outlet 212 Body flows.A part 337 for the sealing surface 334 of bracket 330 sealingly engages valve seat 318 Seating surface 336, thus limit as shown in Figure 3 or prevent fluid flow through fluid actuator 200 Aperture 316.

When downstream increase in demand, export the pressure at 212 and reduce.When in sensing chamber 226 The pressure of pressure fluid less than the first side 216 being applied to barrier film 214 by biasing element 232 On base pressure or during power, barrier film 214 moves towards valve body 208, bend or bends. Then, pad 230 engages the stem connector 344 of bracket 330, so that bracket 330 is remote Move from valve seat 318, to allow or to increase the fluid stream between entrance 210 and outlet 212 Dynamic.When bracket 330 is positioned at from position (being such as positioned at open position) that valve seat 318 is farthest, Aperture 316 allows or allows fluid fluid ability or the rate of flow of fluid of maximum.

As it has been described above, aperture 316 limits the maximum fluid energy of flow of fluid conditioner 200 Power or Peak Flow Rate.Such as, Peak Flow Rate can be with flow coefficient (C_v) relevant, this stream Dynamic coefficient (C_v) adjusted by fluid for classifying under standard conditions as above or predicting The flow velocity of joint device 200.In operation, exemplary aperture 316 be suitably sized to provide with about Be 0.06 fluid flow coefficient relevant or the fluid ability characterized by it.Additionally, fluid The maximum fluid stream being suitably sized to support to be allowed by aperture 316 in operation of flow path 322 Speed.

Fig. 4 shows the example fluid regulator with valve gear 402 described here 400.Below, no longer describe in detail and the fluid conditioner described in figs. 2 and 3 200 and/or the parts of valve gear 202 substantially similar or identical and have and these parts The fluid conditioner 400 of the substantially similar or identical function of function and/or valve gear 402 Those parts.Alternatively, reader interested can refer to the description of above-mentioned correspondence.

Similar to the valve gear 202 of Fig. 2 and Fig. 3, valve gear 402 is to couple removedly To the subassembly of valve body 208, logical to limit the fluid flowing between entrance 210 and outlet 212 Road at least some of.With the fluid conditioner 200 provided by the keeper 302 of Fig. 2 and Fig. 3 Fluid flow performance, characteristic or ability compare, valve gear 402 provides fluid conditioner 400 Different fluid flow performances, characteristic or ability.Such as, it is coupled at valve gear 402 During fluid conditioner 400, valve gear 402 provide relevant to the flow coefficient of about 0.2 or It is the fluid fluid ability or flow velocity classified by it.On the contrary, adjust at the fluid being coupled to Fig. 2 When saving device 200, valve gear 202 provides the flow coefficient with about 0.06 to be the fluid characterized Fluid ability or flow velocity.

Fig. 5 is the enlarged drawing of the example valve device 402 of Fig. 4.With reference to Fig. 4 and Fig. 5, Valve gear 402 includes interchangeable or removable shell or keeper 502, flowing control Assembly 304 processed and filter 306.Keeper 502 and Fig. 2 and Fig. 3 of shown example The keeper 302 of valve gear 202 the most similar.Especially, keeper 502 can be with The keeper 302 of the valve gear 202 of Fig. 2 and Fig. 3 exchanges or changes.Such as, available figure Keeper 502 is changed or exchanged to the keeper 302 of 2 and Fig. 3, affects or provides The different fluid fluid ability of fluid conditioner 400 or flow velocity.

The keeper 502 of shown example is the cylinder-shaped body with threaded portion 504, Valve gear 402 to be coupled to the opening 242 of the valve body 208 of fluid conditioner 400.Keep Device 502 includes chamber or vestibule 506, with valve gear 402 be coupled to valve body 208 up to Partially limit the fluid flowing passage of fluid conditioner 400.Keeper 502 and vestibule 506 Form the shoulder 508 with the opening 510 with vestibule 506 co-axially align, to limit fluid tune The fluid orifice 512 of the fluid flowing passage of joint device 400.Especially, aperture 512 limits stream The fluid fluid ability of body actuator 400 or fluid flow characteristics.Such as, aperture 512 has It is provided with diameter or the size of the fluid ability of the flow coefficient sign by about 0.2.Cause And, the aperture of the size in the aperture 512 of keeper 502 keeper 302 than Fig. 2 and Fig. 3 The size of 316 is big.The shoulder 508 of keeper 502 limits the fluid stream of fluid conditioner 400 The valve seat 514 of dynamic passage.

Additionally, for the fluid fluid ability supported and provided by aperture 512 or characteristic phase The rate of flow of fluid closed, keeper 502 includes the flange 516 with fluid flow path 518. The fluid flow path 518 of shown example is substantially perpendicular to opening 510 and/or vestibule 506, and it is positioned at the downstream of valve seat 514.Especially, fluid flow path 518 support or More substantial fluid is allowed to flow to sensing chamber 226, to support and the fluid provided by aperture 512 The rate of flow of fluid that fluid ability is relevant.Such as, in order to support the fluid stream provided by aperture 512 Speed, fluid flow path 518 can include the multiple streams being radially arranged around the axle 520 of flange 516 Body flow path.As it can be seen, fluid flow path 518 includes and is positioned at valve seat 514 downstream The adjacent first fluid flow path 522 of second fluid flow path 524.In this example, First and second fluid flow path 522 and 524 provide crossing current path.In other words, first-class Body flow path 522 is substantially perpendicular to second fluid flow path 524.First and second streams Body flow path 522,524 is all with the outlet 526 of valve seat 514 and sensing chamber 226 fluidly Couple.As it can be seen, keeper 502 has T section shape or profile.But, In other examples, keeper 502 can have any suitable cross sectional shape or profile.

In an assembling process, in fluid-flow assembly 304 is arranged on vestibule 506.More specifically Ground, keeper 502 (such as vestibule 506 and shoulder 508) limits common flowing control group Part interface, to receive flowing control assembly 304.Especially, bracket 330, biasing element 332, Tray retainer 338, stem connector 344 and spring base 342 are arranged on keeper 502 In vestibule 506.Filter 306 is coupled to one end 528 of keeper 502, described one end 528 include tab, clip or finger 530, to receive the enlarged of filter 306 354.In order to provide the sealing between sensing chamber 226 and inlet 244, valve gear 402 Including the sealing member 356 (O) being arranged between threaded portion 504 and flange 516.

In operation, bracket 330 is relative to the shoulder 508 of keeper 502 or valve seat 514 Mobile.The sealing surface 334 of bracket 330 engages the seating surface 532 of valve seat 514.At this example In, the sealing surface 334 of bracket 330 has the profile with seating surface 532 or shape (such as Tapered profiles) complementary profile or shape (such as tapered profiles).When bracket 330 is positioned at Closed position, the most substantially to limit or to prevent by aperture 512 During fluid flowing, a part 534 for the sealing surface 334 of bracket 330 engages propping up of valve seat 514 Hold face 532.Contrary with the valve gear 202 of Fig. 2 and Fig. 3, bracket 330 is along sealing surface 334 A part 534 engage valve seat 514.Owing to the size in the aperture 512 of keeper 502 is more than The size in the aperture 316 of keeper 302, therefore, engages the sealing surface 334 of valve seat 514 A part 534 is different from the sealing surface of the valve seat 318 of the valve gear 202 engaging Fig. 2 and Fig. 3 The part 337 of 334.Therefore, example retainer 502 is only by changing keeper (example Such as keeper 302) the different flow behavior of fluid conditioner 400 is provided.At this example In, bracket 330 has cone or a tapered profiles, thus the aperture of large-size, such as hole Mouth 512 seals towards the base 536 of bracket 330, and the aperture 512 of large-size allows more Many is flowed by the fluid in aperture 512, and less aperture, such as aperture 316 is towards bracket One end 538 of 330 seals, and the aperture 316 of reduced size allows relatively small passing through The fluid flowing in aperture 316.

Therefore, different from the fluid conditioner 100 of Fig. 1, the valve gear 202 of Fig. 2 and Fig. 3 Keeper 302 can exchange with the keeper 502 of the valve gear 402 of Fig. 4 and Fig. 5 or Change, to change or to affect the fluid fluid ability of respective fluid conditioner 200 and 400. Additionally, keeper 302 or 502 can include one or multiple fluid flow path, to support The rate of flow of fluid provided by the aperture of fluid conditioner.In this way, avoid the need for having The different valve body (such as valve body 208) of bigger fluid flow path.

Additionally, valve gear 402 can be mutual with the valve gear 202 of the fluid conditioner 200 of Fig. 2 Change, thus provide by the fluid energy of flow of the fluid conditioner 200 that flow coefficient is 0.2 sign Power or flow behavior.Similarly, the valve gear 402 of fluid conditioner 400 can be with Fig. 2's Valve gear 202 exchanges, thus provide have flow coefficient be 0.06 fluid conditioner 400 Fluid fluid ability or flow behavior.Especially, it is only necessary to exchange or change keeper 302 and 502, to change or to affect the fluid fluid ability of fluid conditioner.Therefore, may be used Change keeper 302 with keeper 502, to limit, there is the fluid tune that flow coefficient is as 0.2 Save the fluid fluid ability of device 200, and keeper 502 changed by available keeper 302, thus Limit by flow coefficient as the fluid fluid ability of the fluid conditioner 400 of 0.06 sign.Change speech It, owing to keeper 302 and 502 limits respective aperture 316 and 512, therefore, only need Keeper 302 and 502 to be exchanged, to change or to affect the fluid energy of flow of fluid conditioner Power or performance.As a result of which it is, valve gear described here substantially reduces manufacture and inventory cost.

Although there is described herein some illustrative methods, device and manufacture, but the present invention Coverage is not limited to this.On the contrary, present invention encompasses whether from literal or All methods of the most fully falling within the scope of the appended claims, dress Put and manufacture.

Claims (18)

1. for a valve gear for fluid conditioner, including:

First keeper, it is removably coupled to the described fluid conditioner between entrance and outlet Fluid flowing passage, described first keeper includes first shell with the first vestibule, is used for Receiving flowing and control assembly, described keeper has first alignd with described first bore coaxial and opens Mouthful, for when described keeper is coupled to described fluid conditioner, limit the flowing of described fluid logical First aperture in road；And

Second keeper, it is different from described first keeper and can be mutual with described first keeper Changing, wherein, described second keeper includes the second housing with the second vestibule, is used for receiving institute Stating flowing and control assembly, described second keeper has second alignd with described second bore coaxial Opening, for when described second keeper is coupled to described fluid conditioner, limits described fluid Second aperture of flow channel；And

Cut-off component, is maintained at described first keeper or for described flowing is controlled assembly In two keepers, described cut-off component includes filter, and it is coupled to the one of described first keeper End or one end of described second keeper；Wherein

Described first aperture has the first diameter or a size, and described second aperture has and is different from Described first diameter in described first aperture or the Second bobbin diameter of size or size；And

Described first keeper provides the first fluid flow behavior of described fluid conditioner, and institute State the second keeper and the described fluid conditioner being different from described first fluid flow behavior is provided Second fluid flow behavior.

2. valve gear as claimed in claim 1, it is characterised in that described first keeper bag Including first fluid flow path, it is substantially perpendicular to described first aperture, and protects described first When holder is coupled to described fluid conditioner, it is in fluid communication with the sensing chamber of described fluid conditioner.

3. valve gear as claimed in claim 2, it is characterised in that described second keeper bag Including second fluid flow path and the 3rd fluid flow path, they are substantially perpendicular to described second Aperture, and when described second keeper is coupled to described fluid conditioner, all adjust with described fluid The sensing chamber fluid communication of joint device.

4. valve gear as claimed in claim 3, it is characterised in that described 3rd fluid path It is substantially perpendicular to described second fluid flow path.

5. valve gear as claimed in claim 1, it is characterised in that described first keeper carries For being the fluid flow coefficient of 0.06, and described second keeper is provided as the fluid flowing of 0.2 Coefficient.

6. valve gear as claimed in claim 1, it is characterised in that also include described flowing control Assembly processed, described flowing controls assembly and includes bracket, biasing element and spring base.

7. valve gear as claimed in claim 6, it is characterised in that be coupled at described bracket During described first keeper, described bracket engages described first along the Part I of primary sealing area Opening, wherein when described bracket is coupled to described second keeper, described bracket is close along second The Part II of front cover engages described second opening, and wherein said Part I is different from described Part II.

8. a valve gear, including:

Spool, it is removably coupled to the valve body of fluid conditioner, to limit entering of described valve body Mouthful and outlet between fluid flowing passage at least some of, described spool includes:

For described fluid conditioner, multiple different and interchangeable keeper, institute The each holder stated in multiple keeper has aperture, to limit described fluid conditioner Each different fluid fluid ability；

Flowing controls assembly, and it is arranged on the first keeper selected from the plurality of keeper Chamber in；And

Cut-off component, it is coupled to one end of described first keeper, with by described flowing Controlling assembly to be maintained in described chamber, described cut-off component includes filter；Wherein

The described aperture of a keeper in the plurality of keeper have the first diameter or The described aperture of another keeper in size, and the plurality of keeper has and institute State the described aperture of one keeper in multiple keeper described first diameter or Second bobbin diameter that size is different or size.

9. valve gear as claimed in claim 8, it is characterised in that described first keeper bag Include the main body with T section shape.

10. valve gear as claimed in claim 8, it is characterised in that each keeper includes reality The fluid flow path in described aperture it is perpendicular in matter.

11. 1 kinds of modular valve gears, including:

First keeper, it has the first chamber, for receiving moveable flow control components And there is the first shoulder limiting the first valve seat, it is coupled to fluid conditioner at described first keeper Time, described first valve seat limits the first of the first fluid fluid ability providing described fluid conditioner Aperture；

Bracket, it is arranged in described first chamber, and is removable relative to described first valve seat , to control to be flowed by the fluid in described first aperture；

Cut-off component, for being maintained at described first chamber of described first keeper by described bracket In, described cut-off component includes filter, and it is coupled to one end of described first keeper；

Sealing member, it is coupled to one end of described first keeper, so that described bracket is maintained at institute State in described first chamber of the first keeper；And

Second keeper, its can with described first keeper exchange and with described first keeper not With, described second keeper has the second chamber, is used for receiving described flow control components, and has There is the second shoulder limiting the second valve seat, be coupled to described fluid conditioner at described second keeper Time, described second valve seat limits the second aperture providing second fluid fluid ability, described first-class Body fluid ability is different from described second fluid fluid ability；Wherein

Described first aperture has the first diameter or a size, and described second aperture has and is different from Described first diameter in described first aperture or the Second bobbin diameter of size or size.

12. modular valve gears as claimed in claim 11, it is characterised in that described One keeper includes the main body with T section shape.

13. modular valve gears as claimed in claim 12, it is characterised in that described One keeper includes the clip of the one end adjacent to described main body, to receive described cut-off component.

14. modular valve gears as claimed in claim 11, it is characterised in that described One keeper include first fluid path to support first-class kinetic force, and described second keeper Including second fluid path, for supporting to be different from the second kinetic energy of described first-class kinetic force Power.

15. modular valve gears as claimed in claim 14, it is characterised in that described One fluid path is substantially perpendicular to described first aperture, and is positioned at the downstream of described first valve seat.

16. modular valve gears as claimed in claim 14, it is characterised in that described The described second fluid flow path of two keepers includes the fluid being positioned at described second valve seat downstream Crossing current path.

17. 1 kinds of methods coupling the spool for fluid conditioner, described method includes:

From the first keeper of described spool, remove flowing control assembly, described first keeper There is the first aperture to limit first fluid fluid ability；

The second keeper, described second keeper is selected to have the second aperture from multiple keepers, It is different from the second of the described first fluid fluid ability provided by described first keeper to limit Fluid fluid ability；And

Described flowing is controlled assembly and is coupled to the flowing control component interface of described second keeper And by means of cut-off component, described flowing control assembly is maintained in described second keeper, described Cut-off component includes filter, and it is coupled to one end of described second keeper；Wherein

Described first aperture has the first diameter or size, and described second aperture has difference Described first diameter in described first aperture or the Second bobbin diameter of size or size.

18. methods as claimed in claim 17, it is characterised in that also include having described The described spool of two keepers is coupled to described fluid conditioner.