CN202252200U - Fluid adjusting device - Google Patents
Fluid adjusting device Download PDFInfo
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- CN202252200U CN202252200U CN2011202383541U CN201120238354U CN202252200U CN 202252200 U CN202252200 U CN 202252200U CN 2011202383541 U CN2011202383541 U CN 2011202383541U CN 201120238354 U CN201120238354 U CN 201120238354U CN 202252200 U CN202252200 U CN 202252200U
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- Prior art keywords
- fluid
- control member
- flow control
- valve rod
- coupled
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
- G05D16/185—Control of fluid pressure with auxiliary non-electric power derived from an external source using membranes within the main valve
Abstract
The utility model describes a fluid adjusting device. The fluid pressure adjusting device comprises a fluid flow control member, wherein the fluid flow control member is arranged in a fluid flow passageway of a valve body and can move relative to a seat ring so as to adjust the flow of fluid passing through the fluid flow passageway; and the fluid pressure adjusting device also comprises a valve rod, wherein the valve rod is used for coupling the fluid flow control member to an actuator and is provided with a passageway to allow the fluid from the inlet of the fluid flow passageway to pass through the flow control member between a first side of the flow control member and a second side of the flow control member opposite to the first side so as to balance the pressure of the fluid flow control member.
Description
Technical field
The disclosure relates generally to fluid conditioner, relates to pressure equilibrium fluid pressure regulator especially.
Background technique
Fluid valve and regulator are dispersed in the whole process control system usually, to control the flow rate and/or the pressure of various fluids (for example liquid, gas or the like).Especially, fluid conditioner typically is used to reduce the pressure of fluid and this pressure is adjusted to a constant in fact value.Especially, fluid conditioner has inlet, and this inlet typically receives and is in the strong accommodating fluid of relatively high pressure, and this regulator provides low relatively pressure in outlet.Cross flowing of a hole through restricted circulation, inlet pressure is reduced to a lower back pressure, with the downstream demand of coupling fluctuation.For example; Can have gas high relatively and variable a little pressure from gas distribution source reception with the gas conditioner that is associated of equipment (for example boiler); And can this gas regulation be become to have lower, constant in fact pressure, be suitable for this device security and effectively use.
The model utility content
With known, usually use pipeline that the fluid conditioner that the FLOW CONTROL member is coupled to actuator is compared, the fluid conditioner of this example described herein uses valve rod that the FLOW CONTROL member is coupled to actuator.In some instances, this valve rod can comprise a passage, so that therefore this FLOW CONTROL member pressure equilibrium needs less power to open and/or close this FLOW CONTROL member.Therefore, less actuator can be provided, reduce cost thus.In addition, than traditional seat ring, the fluid conditioner of this example described herein uses valve seat or the seat ring that the supporting surface that is made up of elastic material (for example, elastomer seal, dish or ring) is provided.Therefore, reduce significantly or avoided because for example the wearing and tearing that produce of the impact flow in the process flow or particulate to elastomer seal.
In an example, fluid conditioner comprises a fluid FLOW CONTROL member, and it is placed in the fluid flowing passage of valve body, and moves with adjustment mobile through the fluid of this fluid flowing passage with respect to seat ring.Valve rod is coupled to actuator with this fluid FLOW CONTROL member.This valve rod has a path and between second side relative with this first side of first side of this FLOW CONTROL member and this FLOW CONTROL member, flows through this FLOW CONTROL member with the fluid of the inlet that allows to come from fluid flowing passage, so that this fluid FLOW CONTROL member pressure equilibrium.
In another example, fluid conditioner comprises the FLOW CONTROL member, and it is arranged in the fluid flowing passage that is limited valve body.This FLOW CONTROL member has the sealing surfaces of metal, and this surface will be moved with respect to the elastomeric support face of the seat ring that is arranged in this fluid flowing passage.This metallic seal surface is coupled to the dish retainer through the dish positioning work piece.Valve rod operationally is coupled to this FLOW CONTROL member the diaphragm of actuator.This FLOW CONTROL member threadably is coupled to first end of this valve rod through this positioning work piece, and this valve rod directly be coupled to this diaphragm of this actuator through diaphragm plate with this first end second opposed end.
In another example, fluid conditioner comprises the device that the fluid that is used to adjust the passage through fluid conditioner flows, and wherein this regulating device comprises the metallic seal surface that is coupled to the dish retainer through positioning work piece; And the device that is used to activate the mobile regulating device of this fluid, this actuator operationally is coupled to this regulating device through valve rod, and this valve rod has the device that is used to make the mobile regulating device pressure equilibrium of this fluid.
Description of drawings
Figure 1A is known viewgraph of cross-section fluid conditioner, that cut open;
Figure 1B is a viewgraph of cross-section part, that amplify of the known fluid conditioner among Figure 1A;
Fig. 2 is the viewgraph of cross-section of fluid pressure regulator of the pressure equilibrium of example described herein;
Fig. 3 is another viewgraph of cross-section of a part of fluid conditioner of the example of Fig. 2;
Fig. 4 be Fig. 2 example fluid conditioner amplification, partial cross-sectional view;
Fig. 5 is the viewgraph of cross-section of filter of example of the fluid conditioner of Fig. 2.
Embodiment
According to an aspect of the present invention, a kind of fluid conditioner comprises: fluid FLOW CONTROL member, and it is placed in the fluid flowing passage of valve body, and this FLOW CONTROL member is used for moving with adjustment mobile through the fluid of this fluid flowing passage with respect to seat ring; And valve rod; Be used for this fluid FLOW CONTROL member is coupled to actuator; This valve rod has a path and between second side relative with this first side of first side of this FLOW CONTROL member and this FLOW CONTROL member, flows through this FLOW CONTROL member with the fluid of the inlet that allows to come from said fluid flowing passage, so that this fluid FLOW CONTROL member pressure equilibrium.
According to one embodiment of present invention, said path comprises first path and second path.
According to one embodiment of present invention; Said first path is included in first vestibule in the said valve rod; This first vestibule has the axle of the longitudinal shaft that is parallel to said valve rod in fact, and said second path comprises second vestibule, and this second vestibule has the axle that the longitudinal shaft with said valve rod intersects.
According to one embodiment of present invention, fluid conditioner also comprises seat ring, and wherein, said FLOW CONTROL member will move with respect to this seat ring, and wherein said seat ring has defined the hole of said fluid flowing passage.
According to one embodiment of present invention, at least a portion of said seat ring comprises elastic ring.
According to one embodiment of present invention, said seat ring comprises first portion that is made up of metallic material and the second portion that is made up of elastic material.
According to one embodiment of present invention, said FLOW CONTROL member comprises the seal disc that is made up of metallic material, and it is coupled to the dish retainer through the dish positioning work piece.
According to one embodiment of present invention, said dish positioning work piece threadably engages an end of opening said valve rod, that be close to said path, so that said FLOW CONTROL member is coupled to said valve rod.
According to one embodiment of present invention, the end with respect to said path of said valve rod will directly be coupled to said actuator.
According to one embodiment of present invention, fluid conditioner also comprises actuator, and wherein this actuator comprises the diaphragm that is coupled to said valve rod through first and second diaphragm plates.
According to one embodiment of present invention, wherein, the diameter of said primary diaphragm plate is greater than the diameter of said secondary diaphragm plate.
According to one embodiment of present invention, fluid conditioner also comprises the filter that is coupled to said seat ring, and this filter is made up of a plurality of arcuate surfaces that form discontinuous profile or shape.
According to one embodiment of present invention, fluid conditioner also comprises the travel indicator that threadably is coupled to said valve rod.
According to one embodiment of present invention, said travel indicator threadably is coupled to an end that is close in diaphragm plate of said valve rod.
According to one embodiment of present invention; Fluid conditioner also comprises actuator; And wherein this actuator comprises the port that is communicated with said second side liquid of said FLOW CONTROL member, and wherein this port will provide the charging fluid from the inlet of said passage to the supply port of pilot operationp device.
According to a further aspect in the invention; A kind of fluid conditioner comprises: the FLOW CONTROL member; It is arranged in the fluid flowing passage that is limited valve body; This FLOW CONTROL member has the sealing surfaces of metal, and this surface will be moved with respect to the elastomeric support face of the seat ring that is arranged in this fluid flowing passage, and this metallic seal surface is coupled to the dish retainer through the dish positioning work piece; And valve rod; Be used for operationally this FLOW CONTROL member being coupled to the diaphragm of actuator; This FLOW CONTROL member threadably is coupled to first end of this valve rod through this positioning work piece, and this valve rod will directly be coupled to this diaphragm of this actuator through diaphragm plate with this first end second opposed end.
According to one embodiment of present invention; Fluid conditioner also comprises the path through the part of said valve rod; To allow fluid between the spring chamber of the inlet of said fluid flowing passage and said fluid conditioner, to flow, so that said FLOW CONTROL member pressure equilibrium.
According to one embodiment of present invention; Fluid conditioner also comprises actuator; And wherein this actuator comprises first housing parts that is coupled to second housing parts; First and second housing parts all comprise the internal surface with crooked cross section shape or profile, to increase the surface of contact area between said diaphragm and the said internal surface.
According to a further aspect in the invention, fluid conditioner comprises: be used to adjust the mobile device of fluid through the passage of fluid conditioner, wherein this regulating device comprises the metallic seal surface that is coupled to the dish retainer through positioning work piece; And the device that is used to activate the mobile regulating device of this fluid, this actuator operationally is coupled to this regulating device through valve rod, and this valve rod has the device that is used to make the mobile regulating device pressure equilibrium of this fluid.
According to one embodiment of present invention; Fluid conditioner also comprises first device that is used for through said positioning work piece the mobile regulating device of said fluid being coupled to first end of valve rod; With second device that is used for said actuator is coupled to second end of said valve rod, wherein said first device that is used to couple is different with said second device that is used to couple.
With known, usually use pipeline that the fluid conditioner that the FLOW CONTROL member is coupled to actuator is compared, the fluid conditioner of this example described herein uses valve rod that the FLOW CONTROL member is coupled to actuator.In some instances, this valve rod can comprise a passage, so that therefore this FLOW CONTROL member pressure equilibrium needs less power to open and/or close this FLOW CONTROL member.Therefore, less actuator can be provided, reduce cost thus.In addition, than traditional seat ring, the fluid conditioner of this example described herein uses valve seat or the seat ring that the supporting surface that is made up of elastic material (for example, elastomer seal, dish or ring) is provided.Therefore, reduce significantly or avoided because for example the wearing and tearing that produce of the impact flow in the process flow or particulate to elastomer seal.
In some instances, sieve or filter can be coupled to this seat ring to filter or to prevent that impurity (the for example big particulate) flow further downstream in the process flow from arriving the outlet of this fluid conditioner.Especially, this filter can be made up of a plurality of discontinuous curved surfaces.Therefore, when being used to have the process flow of relative low temperature, this filter can not be vulnerable to ice the influence of formation.
Further, different with traditional fluid conditioner, the internal surface of the actuator shell of the fluid conditioner of example described herein has bending or level and smooth profile or shape.Like this, the diaphragm of actuator can contact with the internal surface of actuator shell with the surface of contact area that increases, and it is concentrated that this has reduced on this diaphragm the stress at surface of contact.Additionally or alternatively, the diaphragm plate that valve rod is coupled to this FLOW CONTROL member can be less dimensionally, to allow the more crooked or bending of this diaphragm than the conventional fluid regulator.Allow bending freely of this diaphragm or bending to reduce the localized stress on the diaphragm significantly.The stress raisers that so reduce have increased the cycle life or the fatigue life of this diaphragm significantly, have reduced maintenance and cost thus.
To known fluid conditioner 100 brief description is provided below in conjunction with Figure 1A and 1B.Figure 1A is known viewgraph of cross-section fluid conditioner 100, that cut open, shows at this figure left-hand side and is shown in an open position 102 fluid conditioner 100, and show in the closed position 104 fluid conditioner 100 at right-hand side.Figure 1B is the partial cross-sectional view of conventional fluid regulator 100 among Figure 1A, amplification.
With reference to Figure 1A and Figure 1B, known fluid conditioner 100 comprises the actuator 106 that is coupled to valve body 108.This actuator 106 moves fluid control member or throttle ele-ment 110 with respect to seat ring 112, flows with the fluid of control through the passage 116 of this valve body 108.
This FLOW CONTROL member 110 of this fluid conditioner 100 is illustrated as mushroom valve.This FLOW CONTROL member 110 has seal disc 118, dish seat or retainer 120, dish positioning work piece 122 and stem adapter 124.Sealing dish 118 is rings of substantive dish type, and is made up of elastic material.But when (for example, fluid has high relatively speed and/or high relatively temperature) used under abominable service condition, this elastic packing dish 118 can be easy to wearing and tearing, and can receive and corrode fast and damage.For example, shown in Figure 1B, the impact flow that is caused by the fluid of relative high speed stream 126 causes that big relatively power can be applied on the seal disc 118, causes seal disc 118 wearing and tearing thus.The wearing and tearing that on elastic packing dish 118, cause can stop FLOW CONTROL member 110 normally to be sealed in seat ring 112, and feasible need closing or the by-pass procedure system, to change sealing dish 118.Therefore, this FLOW CONTROL member 110 maintenance that need increase.
In the example that illustrates, this actuator 106 comprises upper casing 128 and lower casing 130, and they have held diaphragm plate 132 and 134.This diaphragm plate 132 and 134 with pipeline 138 exercisable coupling in fixing diaphragm 136.Therefore, this diaphragm plate 132 is connected 140 with 134 through pipeline, and pipeline 138 and FLOW CONTROL member 110 are coupled to diaphragm 136.But the pipeline shown in Figure 1A connects 140 has increased manufacture cost and complexity significantly.For example, this pipeline connection 140 requires a plurality of Sealings 142 between pipeline 138 and valve body 108 and/or housing 144, to seal.
Further, because pipeline connects 140, travel indicator 146 is coupled to diaphragm plate 132 so that the indication of this FLOW CONTROL member 110 with respect to the position of this seat ring 112 to be provided.The trip indicator 146 is connected the hole 148 that is coupled to diaphragm plate 132 through buckle.Such buckle connects unlike for example being threaded such firm; And possibly be easy in operation (for example drawn back from diaphragm plate 132; Be drawn out from diaphragm plate 132), the maintenance that need increase thus and closing is to be connected to diaphragm plate 132 with travel indicator 146 again.
Additionally or alternatively, the load that this diaphragm plate 132 and 134 transmits from diaphragm 136, with movement pipeline 138 between open position 102 and closed position 104, and therefore diaphragm plate 132 and 134 size are set to support big relatively transmission load.In operation, the pressure difference of striding diaphragm 136 causes diaphragm 136 bendings or crooked, causes FLOW CONTROL member 110 to move with respect to seat ring 112 through pipeline 138, flows with the fluid of control through passage 116.But, diaphragm plate 132 and 134 and/or actuator shell 128 and 130 formed fulcrum 150 or had acute angle or rough surface of contact 152.Therefore, diaphragm 136 is restricted near crooked or bending less relatively surface area.Additionally or alternatively, this diaphragm 136 engages diaphragm plate 132 and 134 acute angle portion 150 and 152 and/or actuator 106 with relatively little surface of contact, and it is concentrated at the stress of area of contact to have increased diaphragm 136 thus.Cycle life or fatigue life that this stress raisers that put on diaphragm 136 can reduce this diaphragm 136 significantly, cause the maintenance and the cost that increase thus.
Fig. 2 shows the fluid conditioner 200 of example described herein.Fig. 3 is the partial enlarged view of fluid conditioner 200 of the example of Fig. 2.Fig. 4 is another partial cross-sectional view of fluid conditioner 200 of the example of Fig. 2.
With reference to Fig. 2, the fluid conditioner 200 of this example comprises the actuator 202 that is coupled to valve body 204.This valve body 204 has the inlet 206 that is used to connect upstream line, and the process flow of relatively high pressure is provided at the upstream line place.This valve body 204 also has the outlet 208 that is used to connect downstream line, and this fluid conditioner 200 is in low process flow of regulating pressure for this downstream line provides.This valve body 204 is main pressure borders of this pressure regulator 200; And a supporting surface or seat ring 210 have been supported; It is installed within the valve body 204 and it defines the hole 212 of fluid flowing passage 214, and this passage 214 is limited to inlet 206 by valve body 204 and exports between 208.This actuator 202 moves throttle ele-ment or FLOW CONTROL member 216 with respect to seat ring 210, and is mobile through the fluid of this passage 214 with control or adjustment.
Different with the fluid conditioner 100 among Figure 1A, the fluid conditioner 200 of this example uses valve rod 218 that FLOW CONTROL member 216 operationally is coupled to actuator 202.Additionally; This valve rod 218 that illustrates in the example comprises path 220; With with FLOW CONTROL member 216 and second side, 224 fluids that are communicated with spring chamber 226 fluids first side 222 that is communicated with of inlet 206 fluids and fluid flow member 216 couple, with spool equipment or the assembly 228 that pressure equilibrium is provided.As shown in the figure; The path 220 of valve rod 218 (for example comprises first path 230; First vestibule); This first path is along the part that is close in FLOW CONTROL member 216 of valve rod 218, and this first path has the axle 232 that substance is parallel to and/or is aligned in the longitudinal shaft 234 of valve rod 218, and comprises second path 236 (for example second vestibule or hole) with axle 238; This axle 238 intersects at the longitudinal shaft 234 of (for example substantive ground perpendicular to) valve rod 218, with fluid ground first path 230 is coupled to spring chamber 226.Therefore, path 220 allows fluids 206 to pass FLOW CONTROL member 216 and flow to spring chamber 226 from entering the mouth, thereby the path 220 that passes valve rod 218 provides the spool or the FLOW CONTROL member 216 of pressure equilibrium, to allow high-voltage applications.Because the FLOW CONTROL member of pressure equilibrium needs less power between open position and closed position (position for example shown in Figure 2), to move usually; Additionally or alternatively; (for example, on the size, on the weight, on the power) relatively little actuator can be used.
The FLOW CONTROL member 216 of this fluid conditioner 200 is illustrated as the dish-type valve.As shown in the figure, this FLOW CONTROL member 216 comprises seal disc 240, dish positioning work piece 242 and dish retainer 244.Sealing dish 240 is rings of substantive dish type and is processed by for example metallic material.This dish positioning work piece 242 comprises the outer surface that be close in path 220 (for example helical thread portion) of hole (for example tapped hole) threadably to be coupled to valve rod 218.This dish retainer 244 is fixed on dish positioning work piece 242 and along between the shoulder or flange 245 (for example bolt) of the outer surface of valve rod 218.Sealing dish 240 is fixed between this dish positioning work piece 242 and this dish retainer 244, makes the opening 247 of path 220 be close in first side 222 of FLOW CONTROL member 216.One end 249 of valve rod 218 can surperficially flushing with inlet 206 communicates with respect to dish positioning work piece 242 substantively.Along with FLOW CONTROL member 216 moves between open position and closed position, guide 251 boot disk retainers 244 and FLOW CONTROL member 216.To describe in further detail as following, dish retainer 244 comprises the wall 253 that defines spring seat 255.
Further, the seat ring 210 of fluid conditioner 200 comprises the supporting surface that is made up of elastic material or encircles 248.Like what in Fig. 3, be shown clearly in the most, seat ring 210 is two structures, and it comprises first portion 302 that is made up of metallic material (for example steel) and the second portion 304 that is made up of elastic material.This elastic material or encircle 304 and can be coupled to seat ring 210 through chemical adhesion, fastening piece or any other one or more fastening mechanism that are fit to.In some instances, this first portion 302 can comprise groove or the passage of admitting this elastic ring 304.By this way; Particulate in the process flow and/or since the big relatively power of impact flow be applied on the metalwork 302 of seal disc 240 and/or seat ring 210 of FLOW CONTROL member 216; Rather than be applied on this elastic ring 304, prolonged the operation life of this elastic ring 304 thus.Further; When seal disc 240 engages elastic ring 304 hermetically; Elastic ring 304 provides relatively compact sealing and/or can be shifted or mobile (for example self-aligning), and to minimize the vertical problem that is caused by for example not lining up, this does not line up by coarse manufacturing and/or institute is installed causes.This metalwork 302 of sealing dish 240 and/or this seat ring 210 can be made up of metals such as for example steel, and this elastic ring can be made up of for example fluorine rubber (FKM), neoprene, nitrile elastomeric material.
Sensor or diaphragm 268 are placed in or are fixed between lower casing 250 and 252; Make first surface or the side 270 of diaphragm 268 define first chamber 272, and the second surface of diaphragm 268 or side 274 and lower casing 252 define second or load cavity 276 with upper casing 250.As implied above; Known in Figure 1A, use pipeline 138 diaphragm 136 to be couple to the fluid conditioner 100 of FLOW CONTROL member 110; The fluid conditioner 200 of this example uses valve rod 218 to come operationally FLOW CONTROL member 216 to be couple to diaphragm 268; Than fluid conditioner 100, this has reduced manufacture cost and complexity significantly.
Last lower casing 250 and 252 also comprises diaphragm plate 278 and 280, and it is coupled to diaphragm 268 to provide support to diaphragm 268 and operationally diaphragm 268 to be couple to valve rod 218.This diaphragm plate 278 and 280 is by being coupled in together through a plurality of fastening pieces 282, with fixing diaphragm 268.And this diaphragm plate 278 and 280 has hole separately, comes the end 286 with respect to path 220 of receive valve stem 218 to form opening 284.Especially, this end 286 of this valve rod 218 comprise be placed in the opening 284, diameter reduces part.For valve rod 218 is coupled to diaphragm 268, fastening piece 288 (for example nut) is coupled to the end 286 of valve rod 218, engaging diaphragm plate 278, and engages diaphragm plates 280 by the shoulder 290 that diameter reduces the formed valve rod 218 of part.
As shown in the figure, owing to compare with the pipeline 138 among Figure 1A for example, valve rod 218 has relatively little diameter or cross section, and diaphragm plate 280 can have than the littler significantly bulk of diaphragm plate 278.But in other examples, the diameter of diaphragm plate 278 can be littler than the diameter of diaphragm plate 280.Therefore, different with the diaphragm plate 132 and 134 of fluid conditioner 100 among Figure 1A, diaphragm plate 278 and 280 allows diaphragms 268 more crooked or bending with respect to diaphragm plate 280.Especially, diaphragm plate 278 and 280 provides non-pinch plane 292, and diaphragm 268 can bend nearby or be crooked in operation.Allow diaphragm 268 bending more freely or bending to reduce the localized stress on the diaphragm 268 significantly.
Additionally or alternatively, last lower casing 250 and 252 internal surface 294a and 294b separately has level and smooth or crooked in fact profile or shape (for example non-acute angle or non-sharp keen profile).Therefore, this level and smooth, crooked profile or shape provide the contact surface that increases long-pending, to reduce the stress raisers of diaphragm 268 at the internal surface 294a and the surface of contact between the 294b of diaphragm 268 and each shell 250 and 252.The stress raisers that reduce have like this increased the cycle life and the fatigue life of diaphragm 268 significantly, have reduced maintenance and cost thus.
Additionally, different with the pipeline 138 of the fluid conditioner 100 of Figure 1A, valve rod 218 provides installation surface to be couple to valve rod 218 to allow travel indicator 296 through screw thread.Therefore; So connected the travel indicator 146 that is coupled to diaphragm plate 132 because pipeline 138 lacks installation surface through buckle in Figure 1A for example, the trip indicator 296 is difficult for being broken off from valve rod 218 connecting (for example being pulled out with respect to valve rod 218).
In operation, with reference to Fig. 2, the pressure difference through diaphragm 268 causes moving of FLOW CONTROL member 216, and here this pressure difference is proportional to the actual pressure at outlet 208 places and the difference of the expectation pressure at outlet 208 places.Especially, this FLOW CONTROL member 216 is removed from seat ring 210, flows through passage 214 to allow fluid, and moves towards seat ring 210, to prevent or limit fluid flows through passage 214.In an example shown, this biasing element 256 helps FLOW CONTROL member 216 is biased to closed position.
The access interface 2100 of lower casing 252 provides an inlet, with (for example through the pilot operationp device) with load pressure or control pressure through load pressure control wiring (not shown) fluid be coupled to load cavity 276.Downstream access interface 2102 is coupled to first chamber 272 through downstream control wiring (not shown) with downstream pressure (being back pressure) fluid.When load pressure overcomes spring force that biasing element 256 provides and is applied in the downstream pressure to first side 270 of diaphragm 268 through first chamber 272; This FLOW CONTROL member 216 moves towards open position (promptly leaving seat ring 210), flows through passage 214 to allow fluid.
Load pressure in this load cavity 276 can be by the monitoring equipment supply, and the variation of this monitoring equipment monitoring or induction outlet or downstream pressure (being controlled pressure) is such as for example guide adjustment device or amplifier.But the realization of other examples can be used the regulator of other types, such as for example carrying regulator or the like from operating regulation device, pressure.
In pilot operationp, this load pressure (promptly by the pressure of supplying such as the monitoring equipment of for example pilot operationp device or amplifier) is worked as operative, and this operative applies load to second side 274 of diaphragm 268.This load pressure is by through load pressure control wiring (not shown), be provided for load cavity 276 via access interface 2100.Guiding supply pressure is provided for the monitoring equipment (not shown) through the guiding supply port 266 of actuator 202.Therefore, guiding supply pressure is provided by the pressure at inlet 206 places, this inlet 206 is supplied port 266 and this valve rod 218 through the guiding of actuator 202 path 220 by fluid be coupled to this monitoring equipment.Pressure or the downstream pressure that exports 208 places drops to the expectation pressure setting that is lower than this monitoring equipment and can cause the load pressure load pressure of the supply of pilot operationp device (promptly by) to increase; And the load of load cavity 276 on diaphragm 268 of passing through that increases causes diaphragm 268 displacements; Make valve rod 218 and therefore FLOW CONTROL member 216 move away seat ring 210,206 flow to outlet 208 and to allow fluid from entering the mouth to the down-stream system (not shown).
Though described some equipment and manufactured good here, the protection domain of this patent is not limited to this.On the contrary, this patent covers literal ground or clearly falls into all devices or manufactured good within the accompanying claims scope according to doctrine of equivalents.
Claims (20)
1. a fluid conditioner is characterized in that, comprising:
Fluid FLOW CONTROL member, it is placed in the fluid flowing passage of valve body, and this FLOW CONTROL member is used for moving with adjustment mobile through the fluid of this fluid flowing passage with respect to seat ring; And
Valve rod; Be used for this fluid FLOW CONTROL member is coupled to actuator; This valve rod has a path and between second side relative with this first side of first side of this FLOW CONTROL member and this FLOW CONTROL member, flows through this FLOW CONTROL member with the fluid of the inlet that allows to come from said fluid flowing passage, so that this fluid FLOW CONTROL member pressure equilibrium.
2. fluid conditioner according to claim 1 is characterized in that, said path comprises first path and second path.
3. fluid conditioner according to claim 2; It is characterized in that; Said first path is included in first vestibule in the said valve rod; This first vestibule has the axle of the longitudinal shaft that is parallel to said valve rod in fact, and said second path comprises second vestibule, and this second vestibule has the axle that the longitudinal shaft with said valve rod intersects.
4. fluid conditioner according to claim 1 is characterized in that, also comprises seat ring, and wherein, said FLOW CONTROL member will move with respect to this seat ring, and wherein said seat ring has defined the hole of said fluid flowing passage.
5. fluid conditioner according to claim 4 is characterized in that at least a portion of said seat ring comprises elastic ring.
6. fluid conditioner according to claim 5 is characterized in that, said seat ring comprises first portion that is made up of metallic material and the second portion that is made up of elastic material.
7. fluid conditioner according to claim 1 is characterized in that, said FLOW CONTROL member comprises the seal disc that is made up of metallic material, and it is coupled to the dish retainer through the dish positioning work piece.
8. fluid conditioner according to claim 7 is characterized in that, said dish positioning work piece threadably engages an end of opening said valve rod, that be close to said path, so that said FLOW CONTROL member is coupled to said valve rod.
9. fluid conditioner according to claim 1 is characterized in that, the end with respect to said path of said valve rod will directly be coupled to said actuator.
10. fluid conditioner according to claim 9 is characterized in that, also comprises actuator, and wherein this actuator comprises the diaphragm that is coupled to said valve rod through first and second diaphragm plates.
11. fluid conditioner according to claim 10 is characterized in that, the diameter of said primary diaphragm plate is greater than the diameter of said secondary diaphragm plate.
12. fluid conditioner according to claim 1 is characterized in that, also comprises the filter that is coupled to said seat ring, this filter is made up of a plurality of arcuate surfaces that form discontinuous profile or shape.
13. fluid conditioner according to claim 1 is characterized in that, also comprises the travel indicator that threadably is coupled to said valve rod.
14. fluid conditioner according to claim 13 is characterized in that, said travel indicator threadably is coupled to an end that is close in diaphragm plate of said valve rod.
15. according to the said fluid conditioner of claim 12; It is characterized in that; Also comprise actuator; And wherein this actuator comprises the port that is communicated with said second side liquid of said FLOW CONTROL member, and wherein this port will provide the charging fluid from the inlet of said passage to the supply port of pilot operationp device.
16. a fluid conditioner is characterized in that, comprising:
The FLOW CONTROL member; It is arranged in the fluid flowing passage that is limited valve body; This FLOW CONTROL member has the sealing surfaces of metal; This surface will be moved with respect to the elastomeric support face of the seat ring that is arranged in this fluid flowing passage, and this metallic seal surface is coupled to the dish retainer through the dish positioning work piece; And
Valve rod; Be used for operationally this FLOW CONTROL member being coupled to the diaphragm of actuator; This FLOW CONTROL member threadably is coupled to first end of this valve rod through this positioning work piece, and this valve rod will directly be coupled to this diaphragm of this actuator through diaphragm plate with this first end second opposed end.
17. fluid conditioner according to claim 16; It is characterized in that; Also comprise path, flow between the spring chamber of the inlet of said fluid flowing passage and said fluid conditioner to allow fluid, so that said FLOW CONTROL member pressure equilibrium through the part of said valve rod.
18. fluid conditioner according to claim 16; It is characterized in that; Also comprise actuator; And wherein this actuator comprises first housing parts that is coupled to second housing parts, and first and second housing parts all comprise the internal surface with crooked cross section shape or profile, to increase the surface of contact area between said diaphragm and the said internal surface.
19. a fluid conditioner is characterized in that, comprising:
Be used to adjust the mobile device of fluid through the passage of fluid conditioner, wherein this regulating device comprises the metallic seal surface that is coupled to the dish retainer through positioning work piece; And
Be used to activate the device of the mobile regulating device of this fluid, this actuator operationally is coupled to this regulating device through valve rod, and this valve rod has the device that is used to make the mobile regulating device pressure equilibrium of this fluid.
20. fluid conditioner according to claim 19; It is characterized in that; Also comprise first device that is used for the mobile regulating device of said fluid being coupled to first end of valve rod through said positioning work piece; With second device that is used for said actuator is coupled to second end of said valve rod, wherein said first device that is used to couple is different with said second device that is used to couple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202383541U CN202252200U (en) | 2011-07-01 | 2011-07-01 | Fluid adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202383541U CN202252200U (en) | 2011-07-01 | 2011-07-01 | Fluid adjusting device |
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|---|---|
| CN202252200U true CN202252200U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202383541U Expired - Lifetime CN202252200U (en) | 2011-07-01 | 2011-07-01 | Fluid adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853129A (en) * | 2011-07-01 | 2013-01-02 | 艾默生过程管理调节技术公司 | Pressure-balanced fluid pressure regulator |
| CN106481821A (en) * | 2015-08-27 | 2017-03-08 | 艾默生过程管理调节技术塔尔萨有限公司 | Self-centering metal to metal seal for valve |
-
2011
- 2011-07-01 CN CN2011202383541U patent/CN202252200U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853129A (en) * | 2011-07-01 | 2013-01-02 | 艾默生过程管理调节技术公司 | Pressure-balanced fluid pressure regulator |
| CN106481821A (en) * | 2015-08-27 | 2017-03-08 | 艾默生过程管理调节技术塔尔萨有限公司 | Self-centering metal to metal seal for valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |