CN203023521U - Fluid regulating device and automatic-registration valve port used for fluid regulating device - Google Patents
Fluid regulating device and automatic-registration valve port used for fluid regulating device Download PDFInfo
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- CN203023521U CN203023521U CN201220484502.2U CN201220484502U CN203023521U CN 203023521 U CN203023521 U CN 203023521U CN 201220484502 U CN201220484502 U CN 201220484502U CN 203023521 U CN203023521 U CN 203023521U
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- 239000012530 fluid Substances 0.000 title claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000001276 controlling effect Effects 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K2200/00—Details of valves
- F16K2200/10—Means for compensation of misalignment between seat and closure member
- F16K2200/102—Means for compensation of misalignment between seat and closure member seat self-aligning to closure member
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Abstract
The utility model discloses a fluid regulating device and an automatic-registration valve port used for the fluid regulating device. A regulator comprises a regulating valve and an actuator. The actuator is in coupled connection onto the regulating valve and comprises a control element which is used for controlling flowing of fluid to pass through the regulating valve. The regulating valve is provided with the automatic-registration valve port. The automatic-registration valve port comprises a retaining part, an offset part and a bias voltage part, wherein the offset part is arranged in the retaining part, and the bias voltage part is arranged between the retaining part and the offset part. The automatic-registration valve port can advantageously conduct automatic regulating to obtain sealing joint with the control element of the actuator, and therefore, performance of the regulator is improved.
Description
Technical field
The disclosure relates to gas conditioner, the self-aligning valve port that relates in particular to fluid regulating device and be used for fluid regulating device.
Background technique
The typical pressure of gas distributing system when supply gas may change according to the requirement to system, weather, supply source and/or other factors.Yet great majority are equipped with terminal use's facility of gas combustion apparatus such as firing chamber, drying oven to require gas at the maximum capacity of gas conditioner or lower than transmitting according to predetermined pressure under maximum capacity.Therefore, gas conditioner is applied to the requirement that the gas that is transmitted to guarantee in these distribution systems meets terminal use's facility.Traditional gas conditioner generally includes the closed loop control actuator for the pressure of sensing and the control gas that transmits.
Fig. 1 has described traditional gas conditioner 10.Gas conditioner 10 generally includes actuator 12 and modulating valve 14.The entrance 16 that modulating valve 14 forms from for example gas distributing system receiver gases, and gas is sent to the outlet 18 that such as factory, restaurant, mansion etc. for example has terminal use's facility of one or more devices.In addition, modulating valve 14 comprises the valve port 36 that is arranged between entrance and exit.Gas is inevitable to be moved at the entrance 16 of modulating valve 14 with between exporting 18 via valve port 36.
Actuator 12 is coupled to modulating valve 14, and to be outlet pressure with the pressure at outlet 18 places that guarantee modulating valve 14 conform to required outlet pressure or pilot pressure.Actuator 12 thereby be communicated with modulating valve 14 fluids by valve port 34 and actuator mouth 20.Actuator 12 comprises the control unit 22 for the outlet pressure of regulating modulating valve 14 based on the outlet pressure of sensing.Particularly, control unit 22 comprises diaphragm support plate 19, barrier film 24, piston 32 and the control arm 26 with valve disc 28.Valve disc 28 comprises the body 25 of substantial cylindrical and is fixed to the sealing inserting member 29 of body 25.The outlet pressure of barrier film 24 sensing modulating valve 14 also provides response to come mobile valve disc 28 to open or close modulating valve 14.Control unit 22 comprises that also the control spring 30 that engages with the top side of control unit 22 is to offset the outlet pressure that is sensed by barrier film 24.Therefore, can be described as equally the required outlet pressure of pilot pressure by the selection of control spring 30 is set.
Therefore barrier film 24 may be operably coupled to control arm 26, and is connected to valve disc 28 by piston 32, then based on the opening of the outlet pressure regulating and controlling valve 14 of sensing.For instance, when terminal use's operational example such as firing chamber one device, just the gas distributing system in gas conditioner 10 downstreams proposed demand, thereby reduced outlet pressure.Correspondingly, barrier film 24 senses the outlet pressure of this reduction.This just allows control spring 30 expansions that the right side of piston 32 and control arm 26 is moved down (with respect to the orientation of Fig. 1).This displacement of control arm 26 moves away from valve port 36 to open modulating valve 14 with valve disc 28, flow the demand of satisfied increase from installing thereby increase export, and the pressure of increasing export makes it get back to pilot pressure.By configuration like this, install the outlet 18 that bootable gas passes through valve port 36 and passes through modulating valve 14.
The control unit 22 of conventional regulator 10 also plays the effect of reduction valve.Particularly, control unit 22 also comprises relief spring 40 and expulsion valve 42.Barrier film 24 comprises the opening 44 that passes its middle body, and piston 32 comprises seal bowl 38.Relief spring 40 is arranged between piston 32 and barrier film 24 so that barrier film 24 supports seal bowl 38 to close opening 44 partially at normal operation period.When breaking down, for example control arm 26 fractures, control unit 22 will no longer directly be controlled valve disc 28, and inlet streams will make valve disc 28 move to extreme open position.This just allows the gas of maximum flow to flow into actuator 12.Therefore, due to gas filling actuator 12, relatively the barrier film 24 and pressure that forms forces barrier film 24 away from seal bowl 38, expose opening 44 thus.Opening 44 on gas thereby process barrier film 24 also flows towards expulsion valve 42.Expulsion valve 42 comprises valve plug 46 and valve plug 46 is biased to the retracting spring 54 of closed position, as shown in Figure 1.When near the pressure the pressure in actuator 12 and expulsion valve 42 reached predetermined threshold pressure, the biasing of valve plug 46 opposing retracting springs 54 moved up and opens, thereby was discharged to gas in atmosphere and reduces pressure in regulator 10.
In conventional regulator 10, be arranged on entrance 16 and the valve port 36 that exports between 18 is the integrative-structures that comprise seat ring 37 and form the aperture.When valve disc 28 is positioned at closed position, be fixed to the seat ring 37 of sealing inserting member 29 sealing engagement valve ports 36 of the body 25 of valve disc 28.Valve port 36 can remove from modulating valve 104, can be replaced by the different valve ports of the aperture with different-diameter or structure and seat ring, thereby adjusts the operation of modulating valve 14 and Flow characteristics to adapt to application-specific.
Yet, any conventional integral type valve port for example valve port 36 in case after installing, they be fixed and can not adjust at any angle.Therefore, valve disc 28, the rubber seal inserting members 29 that more specifically are arranged in valve disc 28 in this example must be moved or adjust and be stressed to realize the seat ring 37 of valve port 36 and the joint between valve disc 28.Yet because the relevant portion of inserting member 29 or valve disc 28 is contacting with the seat ring 37 of valve disc 28 guaranteeing of indent shape, outlet pressure or " lock value " rise.This can cause barrier film 24 responses higher than the outlet pressure of pilot pressure, increases the power of the required cut-off valve 104 of valve disc 28, or realizes the power of the outlet pressure of " locking " or expectation, and these may not expected.
The model utility content
The utility model is intended to solve the problems of the technologies described above, and comprises the increase of not expecting of offsetting and/or preventing lock pressure.
According to the first illustrative aspects, a kind of fluid regulating device comprises valve, described valve comprises entrance, exports and is arranged on and is used between entrance and exit allowing Fluid Flow in A by the self-aligning valve port of valve, described self-aligning valve port comprises holding part, is at least partially disposed on the offset part in holding part, and is arranged on the biasing member between holding part and offset part.Actuator is coupled to described valve and comprises control unit, this control unit comprises control unit and may be operably coupled to the barrier film of this control unit, and control unit extends into valve and is suitable for being shifted to control flowing of fluid between entrance and exit with respect to the self-aligning valve port.When touching control unit a part of, offset part moves to the second place from primary importance automatically, in primary importance, the longitudinal axis of offset part and the axis alignment of holding part, in the second place, the longitudinal axis of offset part and the angled setting of the longitudinal axis of holding part, and form aligning and sealing engagement between the seating face of biasing member and control unit.
According to the second illustrative aspects, a kind of self-aligning valve port for fluid regulating device, described fluid regulating device comprises entrance, outlet and control unit, wherein the self-aligning valve port is arranged between entrance and exit, control unit has and is suitable for the controlling component that is shifted with respect to valve port, thereby between the control entrance and exit, fluid flows, the self-aligning valve port comprises holding part, be at least partially disposed in holding part and comprise the offset part of seat ring, and biasing member is arranged between holding part and offset part.After the part of the seat ring of a part of contact bias section of controlling component, offset part automatically around with the vertical axis rotation of the longitudinal axis of holding part until realize between the seat ring of the seating face of control unit and offset part aiming at and sealing engagement.
Further according to before first and second aspect or many aspects, fluid regulating device and/or self-aligning valve port can further comprise one or more of following preferred form.
In some preferred forms, the biasing member of fluid regulating device can comprise at least one in O type ring, pair of O type ring, wavy spring or coil compression springs.In addition, the self-aligning valve port can further comprise the restriction offset part with respect to the axially displaced holding member of holding part, and this holding member can be arranged on valve port an end relative with biasing member near.Holding member can comprise and is connected to offset part and is suitable for fixing clamp, retaining ring against holding part one end or at least one in C type folder.In addition, holding member can be arranged in the circular groove of offset part to help that holding part is fixed to offset part.
In other preferred forms, offset part is clockwise or counterclockwise rotation with respect to the axis vertical with the longitudinal axis of holding part, and move in the axial direction along the longitudinal extent of holding part, until realize between the seat ring of the seating face of control unit and offset part aiming at and sealing engagement.
In other preferred forms, after the part of the described control unit of contact, described offset part moves to the second place from primary importance automatically, in described primary importance, the longitudinal axis of described offset part and the axis alignment of described holding part, in the described second place, the longitudinal axis of described offset part and the angled setting of the longitudinal axis of described holding part, and form aligning and sealing engagement between the seating face of described biasing member and described control unit.
The utility model provides a kind of favourable means to make the valve port can self-regulating when being installed into modulating valve.This has just advantageously offset and/or has prevented the increase of lock pressure, has increased thus operating efficiency and the precision of regulator.
Description of drawings
Fig. 1 is the side sectional view of conventional regulator;
Fig. 2 is the side sectional view that comprises the regulator of self-aligning valve port, and regulator and self-aligning valve port are constructed according to a kind of mode of execution of the present disclosure;
Fig. 3 be in Fig. 2 according to the sectional view of the self-aligning valve port of mode of execution of the present disclosure structure, wherein the self-aligning valve port is in primary importance;
Fig. 4 is another sectional view of self-aligning valve port in Fig. 2, and wherein the self-aligning valve port is in the second place to realize and the aiming at and sealing engagement of control unit; And
Fig. 5 is the side sectional view of self-aligning valve port in Fig. 2, and this self-aligning valve port has the another kind of mode of execution according to the biasing member of disclosure mode of execution structure.
Embodiment
Fig. 2 illustrates the gas conditioner 100 that comprises self-aligning valve port 136, and regulator 100 and self-aligning valve port 136 are constructed according to a kind of mode of execution of the present disclosure.Gas conditioner 100 roughly comprises actuator 102 and modulating valve 104.Modulating valve 104 comprises for the entrance 106 from for example gas distributing system receiver gases, and the outlet 108 that is used for gas is sent to the facility that for example has one or more devices.Actuator 102 is coupled to modulating valve 104 and comprises the control unit 122 with control unit 127.First or normal operation mode during, the pressure at outlet 108 places of control unit 122 sensing modulating valve 104, i.e. outlet pressure, and the position of control unit 127 is controlled is so that outlet pressure is substantially equal to predetermined pilot pressure.In addition, when breaking down in system, regulator 100 is carried out pressure-reducing function, and this pressure-reducing function roughly is similar to the pressure-reducing function of describing above with reference to regulator 10 shown in Figure 1.
Modulating valve 104 is formed with pore-throat 110 and valve port 112.Pore-throat 110 is arranged on entrance 106 and exports between 108.Self-aligning valve port 136 is two-part construction, and it consists of and will describe in more detail hereinafter.Usually, self-aligning valve port 136 is arranged in pore-throat 110 and forms the hole 148 with entrance 150 and outlet 152.As in conventional regulator 104, gas must pass the hole 148 in valve port 136 and advance at the entrance 106 of modulating valve 104 with between exporting 108.In disclosed mode of execution, valve port 112 defines the opening 114 that arranges along an axis, and this axis is approximately perpendicular to the entrance 106 of modulating valve 104 and the axis of outlet 108.
More particularly, barrier film 124 comprises disc diaphragm, be formed with pass its middle body opened 144.Barrier film 124 by flexibility, basically airtight material consists of, and its peripheral seal be fixed between the upper shell member 116a and lower shell body member 116b of housing 116.Thereby barrier film 124 is kept apart relief chamber 134 and control chamber 118.
Piston 132 in disclosed mode of execution comprises the roughly parts of elongated rod-shaped, and it has seal bowl section 138, yoke shape section 172, screw section 174 and guide portion 175.Seal bowl section 138 is recessed and plate-like roughly, and its intermediate portion around piston 132 circumferentially extends, and just in time is positioned at the below of barrier film 124.Yoke shape section 172 comprises the chamber that is suitable for accommodating adapter 135, the part of this adapter land accessory 123, thereby as will as described in make barrier film accessory 121 and dish be connected to become possibility between accessory 123.
The guide portion 175 of piston 132 and screw section 174 are set to pass respectively the opening 144,170 on barrier film 124 and cluster spring seat 164.The guide portion 175 of piston 132 is slidably disposed in the chamber of piston guide 159, and this has just kept piston 132 axially aligning with respect to the remainder of control unit 122.Relief spring 140, relief spring seat 166 and nut 176 are arranged on the screw section 174 of piston 132.Nut 176 is retained on relief spring 140 between cluster spring seat 164 and relief spring seat 166.On control spring 130 top that is arranged on cluster spring seat 164 as described and be arranged in the turriform section 158 of upper shell member 116a.Control spring seat 160 is by in precession turriform section 158 and control spring 130 is compressed cluster spring seat 164.In disclosed mode of execution, control spring 130 and relief spring 140 comprise coil compression springs.Correspondingly, control spring 130 butt upper shell member 116a and apply downward power to cluster spring seat 164 and barrier film 124.Relief spring 140 butt cluster spring seats 164 also apply power upwards to relief spring seat 166, then to piston 132 application of forces.In disclosed mode of execution, the power that is produced by control spring 130 can be adjusted by the position of adjusting the control spring seat 160 in turriform section 158, and the pilot pressure of therefore same adjustable regulator 100.
Particularly, dish accessory 123 comprises control arm 126 and the guide of rod 162.Control arm 126 comprises bar 178, lever 180 and control unit 127.Control unit 127 in disclosed mode of execution comprises valve disc 128.In addition, in disclosed mode of execution, valve disc 128 comprises the seal disc 129 that is used for as shown in Figure 2 relative valve port 136 sealings.Seal disc 129 can be connected to by for example tackiness agent or some other means the remainder of valve disc 128.Seal disc 129 can be by consisting of with the identical or different material of the material of the remainder of valve disc 128.For instance, in one embodiment, seal disc 129 can be polymeric seal dish 129.
The guide of rod 162 comprises the outside 162a of substantial cylindrical, the inside 162b of substantial cylindrical and a plurality of radial rib 162c that connect inner 162b and outside 162a.The size of the outside 162a of the guide of rod 162 and structure are suitable for being arranged on respectively in the mouth 112,120 of modulating valve 104 and lower shell body member 116b.The size of inner 162b and structure are suitable for the bar 178 of retentive control arm 126 slidably.Thereby the guide of rod 162 is for the aligning of the bar 178 of the control arm 126 of keeping modulating valve 104, actuator casing 116 and control unit 122, especially control unit 122.
Fig. 2 illustrates control unit in the closed position 127, at these position valve disc 128 sealing engagement valve ports 136.By configuration like this, gas can't flow and pass valve port 136 and modulating valve 104 cuts out.Because the outlet pressure that senses corresponding to the pressure in the control chamber 118 of housing 116 and by barrier film 124 is greater than the power that is applied by control spring 130, so realized this configuration.Correspondingly, outlet pressure forces barrier film 124 and piston 132 to enter closed position.
As previously mentioned, conventional integral type valve port for example valve port 36 (Fig. 1) is configured for as a kind of part of rigidity and screws in when mounted the body of modulating valve 104, thus they be fix and can not adjust at any angle.Therefore, unless valve disc 28, the seating face 88 that especially is arranged on the rubber seal inserting member 29 in valve disc 28 are aimed at the seat ring 37 of conventional valve port 36 fully, the part of sealing inserting member 29 that at first contacts seat ring 37 is necessary compacted with the acquisition fluid-tight engagement.Due to the relevant portion of inserting member 29 or valve disc 28 extrusion indent and distortion guaranteeing to realize and the contacting of seat ring 37, this finally just need to increase export pressure or " lock value ".This may cause barrier film 24 needs responses higher than the outlet pressure of pilot pressure, namely obtains " locking " required power in order to increase valve disc 28 cut-off valves 104.
Therefore, self-aligning valve port 136 of the present disclosure be designed so that the part of self-aligning valve port 136 can be adjusted automatically or the inserting member 129 of the mobile valve disc 128 of realizing valve port 136 and control unit 127 between aligning and sealing engagement.In other words, be that self-aligning valve port 136 rather than control unit 127 are adjusted aligning and the sealing engagement between the inserting member 129 of the seat ring 159 (Fig. 3) of realizing valve port 136 and control unit 127, as in greater detail following.Because the sealing inserting member 129 of control unit 127 needn't be adjusted (for example distortion) and realize aiming at and sealing engagement, need to obtain the force retaining of required outlet pressure stable and improved the performance of regulator in the long-term using process of for example regulator 100.
Accomplish this point, valve port 136 is set to make it to comprise the two-part construction with holding part 137 and offset part 139, as shown in Figure 3.One section of offset part 139 is placed in holding part 137, and the length along valve port 136 is formed with gap 141 between holding part 137 and offset part 139.As further illustrated in Figure 3, the end place near outlet 152 is provided with biasing member 143 with skew offset part 139, as in greater detail following in gap 141.
In a similar fashion, offset part 139 also comprises columnar portion 139a and the flange 151 that extends from columnar portion 139a outward radial, thereby is placed into holding part 137 when interior when offset part 139, and flange 151 is arranged near the flange 145 of holding part 137.Flange 151 comprises convex shoulder surface, bottom 153, and it is set to close on the convex shoulder surface, top 147 of the flange 145 of holding part 137 equally.The columnar portion 139a of offset part 139 also comprises outer side wall 155.As shown in Figure 3, extend between the outer side wall 155 of the inwall 149 of holding part 137 and offset part 139 along the length of offset part 139 in gap 141, and continue to extend between the convex shoulder surface, top 147 of flange 145 of the convex shoulder surface 153, bottom of flange 151 of offset part 139 and holding part 137.Offset part 139 also comprises circular groove 157 and seat ring 159, and circular groove is arranged on an end of the holding part 137 of the entrance 150 that closes on hole 148, and seat ring is arranged on the end near the offset part 139 of the outlet 152 in hole 148.
An end that closes on entrance 150 of holding part or an end that closes on entrance 150 of offset part 139 do not have seating face or any other surface that other parts that contact modulating valve 104 or regulator 100 are come seal valve.In other words, during the location of the operation of any valve 104 or control unit 127, the end of closing on entrance 150 of holding part 137 and offset part 139 is any surface of blow-by all.The end that closes on holding part 137 that entrance 150 arranges and offset part 139 is " freely " always.
As further illustrated in Figure 3, holding member 161 is connected to or is arranged in the circular groove 157 of offset part 139, be used for holding part 137 is fixed to offset part 139, and this holding member is suitable for the end of butt holding part 137.Holding member 161 can comprise fixing clamp, retaining ring, C type ring or holding part 137 can be fixed to any other parts 161 of offset part 139.In fact, holding member 161 helps offset part 139 is retained in holding part 137.That is to say, holding member 161 limited offset part 139 with respect to holding part 137 axially displaced on the direction of the outlet 152 in hole 148.
By setting like this, in one form, biasing member 143 can slightly push by the power of holding member 161 and holding part 137, so that the convex shoulder surface, bottom 153 of biasing member 143 contact bias sections 139 and produce the power that is applied on offset part 139.Although holding part 137 is threaded into the body of valve 104 and installs and fix when the pore-throat 110 that valve port 136 is placed into valve 104 is interior, in fact offset part 139 is floated in valve 104.The quick condition of offset part 139 makes the offset part 139 can self-regulating or movement and/or rotation or pivotable when the seating face 188 (Fig. 2) of touch controls element 128 a part of, until obtain and the aiming at and sealing engagement of the whole seating face 188 of control unit.
More specifically, in a kind of example as shown in Figure 3, the longitudinal axis A of holding part 137 is parallel with the longitudinal axis B of the offset part 139 of self-aligning valve port 136 or aim at.In the time of in valve port 136 is installed to modulating valve 104, the longitudinal axis A of holding part 137 aims at the longitudinal axis B of offset part 139, and offset part 139 is floated in modulating valve basically usually.In other words, Fig. 3 shows the offset part 139 that is in primary importance, wherein the longitudinal axis A of holding part 137 and offset part 139 and B difference (for example arranging with one heart) aligned with each other.
Referring now to Fig. 4,, show contact with the seat ring 159 of offset part 139 and the control unit 127 that is in misalignment location of sealing engagement dissect part.More specifically, in order to arrive engagement positio, the seating face 188 of the inserting member 129 of control unit 127 is shifted along the longitudinal axis A of holding member 137 at first.When the seat ring 159 of the offset part 139 of initial contact valve port 136, seating face 188 only contacts the part (being in this example left surface) of seat ring 159 in order to for example to close modulating valve 104.The starting force that is provided to the left part of the seat ring 159 of offset part 139 by the seating face 188 of control unit 127 impels offset part 139 to adjust around the axis perpendicular to the longitudinal axis A of holding part 137.In Fig. 3, axis R can be called as the yaw axis of valve port 136.Although in Fig. 3, yaw axis R directly extends into the page, in fact yaw axis R is restricted to any axis perpendicular to the longitudinal axis A extension of holding member 137.Offset part 139 this mobile can occur until realize aligning and sealing engagement between the seat ring 159 of seating face 188 and offset part 139 always.
In another way, Fig. 3 shows the offset part 139 of the self-aligning valve port 136 that is in primary importance, and wherein the longitudinal axis A of holding part 137 aims at the longitudinal axis B of offset part 139 or be parallel.Yet Fig. 4 shows the offset part 139 of the valve port 136 that is in the second place, and wherein the longitudinal axis B of offset part 139 arranges with angle [alpha] with respect to the longitudinal axis A of holding part 137, obtains thus and the aiming at and sealing engagement of the seating face 188 of control unit 127.
More specifically, as shown in Figure 4, when the seating face 188 that touches valve element 127 a part of, the seat ring 159 of offset part 139 rotates in a counter-clockwise direction around yaw axis R, makes the left side on convex shoulder surface, bottom 153 of the flange 151 of offset part 139 move (and may contact) towards the convex shoulder surface, top 147 of the flange 145 of holding part 137.Then the gap 141 between the convex shoulder surface, top 147 of the flange 145 of the right side on this rotation and the mobile convex shoulder surface, bottom 153 that has increased the flange 151 that is arranged on offset part 139 and holding part.In a similar fashion, when offset part 139 rotated to obtain sealing engagement between seating face 188 and seat ring 159 in the manner described, the gap 141 that is arranged between the inwall 149 of the left side of outer side wall 155 of offset part 139 and holding part 137 increased.In addition, as shown, reduce in the gap 141 that is arranged between the inwall 149 of the right side of outer side wall 155 of offset part 139 and holding part.
Referring now to Fig. 5,, although the biasing member 143 of self-aligning valve port 136 comprises the single O type ring at the place, point of intersection of two vertical leg that are arranged on L shaped gap 141, biasing member 143 can comprise alternatively that spaced far is from the pair of O type ring of point of intersection separately.More specifically, as shown in Figure 5, biasing member 143 can comprise two O type ring 143a and the 143b that is arranged in gap 141.The one O type ring 143a is arranged in gap 141 between the convex shoulder surface, top 147 of flange 145 of the bottom convex shoulder surface 153 of flange 151 of offset part 139 and holding part 137.The 2nd O type ring 143b is arranged in gap 141 between the inwall 149 of the outer side wall 155 of columnar portion 139a of offset part 139 and holding part 137.
By structure like this, in one form, O type ring 143a can be held the power of parts 161 and holding part 137 and slightly push, and makes the convex shoulder surface, top 153 of the flange 151 of O type ring 143a contact bias parts 139, and produces the power that is applied on bias component 139.In addition, O type ring 143b can be held equally the power of parts 161 and holding part 137 and slightly push, and makes the outer side wall 155 of the columnar portion 139a of biasing member 143b contact bias parts 139.Similar with the mode of execution shown in Fig. 3 and Fig. 4, although valve port 136 is placed in the pore-throat 110 of valve 104 and holding part 137 is threaded into valve 104 when installing fixedly body, offset part 139 shown in Figure 5 is floated equally in valve 104.The quick condition of offset part 139 makes the offset part 139 can self-regulating or movement and/or rotation or pivotable when the seating face 188 (Fig. 2) of touch controls element 128 a part of, until obtain and the aiming at and sealing engagement of the whole sealing surface 188 of control unit 127.
More specifically, Fig. 5 shows the offset part 139 of the self-aligning valve port 136 that is in primary importance, and wherein the longitudinal axis A of holding part 137 aims at the longitudinal axis B of offset part 139 or be parallel.Similar with the mode of execution shown in Fig. 4, the offset part 139 of the valve port 136 of Fig. 5 can be adjusted to the second place (Fig. 4) equally, wherein the longitudinal axis B of offset part 139 is with respect to the angled setting of longitudinal axis A of holding part 137, thereby realizes and the aiming at and sealing engagement of the sealing surface 188 of control unit 127.
In an example, similar with the mode of execution of Fig. 4, when the seating face 188 that touches valve element 127 a part of, the seat ring 159 of offset part 139 rotates in a counter-clockwise direction around yaw axis R (Fig. 4).This rotation impels the left side on convex shoulder surface, bottom 153 of the flange 151 of offset part 139 to move (and may contact) towards the convex shoulder surface, top 147 of the flange 145 of holding part 137, extruding or further extruding be arranged on therebetween O type ring 143a.Thereby the size of convex shoulder surface, top 147 gaps of the flange 145 of the right side on this rotation and the mobile convex shoulder surface, bottom 153 that can increase equally the flange 151 that is arranged on offset part 139 and holding part 137, for example reduce the amount of compression to the O type ring 143a on the right side.
In a similar fashion, when offset part 139 is rotated when reaching sealing engagement in this way, the gap 141 that is arranged between the inwall 149 of the left side of outer side wall 155 of offset part 139 and holding part increases (Fig. 4), has reduced the amount of compression of the O type ring 143b that is arranged on therebetween.In addition, as shown in Figure 4, reduce in the gap 141 that is arranged between the inwall 149 of the right side of outer side wall 155 of offset part 139 and holding part, extruding or further extruding be arranged on therebetween O type ring 143b.
Although the biasing member 143 in Fig. 3-5 is an O type ring or pair of O type ring, persons skilled in the art will recognize that except an O type ring or pair of O type ring, other various biasing members for example one or more wavy springs, coil compression springs or other any bias mechanisms all replacedly are used for obtaining the said function of O type ring and common biasing member 143.
Those skilled in the art can recognize further that these advantages of self-aligning valve port 136 also can realize during the long period of operation of regulator 100.More specifically, in the situation that the control unit 128 of the control unit 122 of actuator 102 continues for a long time to use and do not have to change or substitute, the wearing and tearing to the control unit 128 of control unit may appear.This wearing and tearing cause for example seating face 188 part distortion and the formation indent of the valve disc 129 of control unit 127.Because for example seating face 188 forms indent in this case, outlet pressure (lock value) rises again.Self-aligning valve port 136 of the present disclosure can be for this variation of control unit 128 and the tolerance between the seat ring 159 of the offset part 139 of any other variation in installing and control unit 128 and valve port 136.Therefore, self-aligning valve port 136 effectively reduces and obtains the required power of outlet pressure (locking), has realized more high efficiency regulator.And, ideally, the indent that self-aligning valve port 136 disclosed herein can be avoided occuring in conventional valve disc in some cases, distortion etc.
According to foregoing, will be appreciated that the utility model provides a kind of favourable means to make the valve port 136 can self-regulating when being installed into modulating valve 104.This has just advantageously offset and/or has prevented the increase of lock pressure, has increased thus operating efficiency and the precision of regulator.Yet regulator 100 described here is only a kind of example that combines the fluid control device of disclosure principle.Other the fluid control device that comprises other regulators and control valve can have benefited from structure of the present disclosure and/or advantage equally.
In general, although described the device of particular instance at this, the coverage area of this patent is not to be restricted.On the contrary, this patent covers all devices in the scope under literal or doctrine of equivalents that falls into claims and makes article.
Claims (13)
1. a fluid regulating device, comprise
Valve, it comprises entrance, exports and is arranged between described entrance and described outlet and to be used for allowing Fluid Flow in A by the self-aligning valve port of described valve, described self-aligning valve port comprise holding part, be at least partially disposed on the interior offset part of described holding part and be arranged on described holding part and described offset part between biasing member; And
Actuator, it is coupled to described valve and comprises control unit, described control unit comprises control unit and may be operably coupled to the barrier film of described control unit, and described control unit extends into described valve and is suitable for being shifted to control flowing of fluid between described entrance and described outlet with respect to described self-aligning valve port;
Wherein, when touching described control unit a part of, described offset part moves to the second place from primary importance automatically, in described primary importance, the longitudinal axis of described offset part and the axis alignment of described holding part, in the described second place, the longitudinal axis of described offset part and the angled setting of the longitudinal axis of described holding part, and form aligning and sealing engagement between the seating face of described biasing member and described control unit.
2. according to claim 1 fluid regulating device, wherein, described biasing member comprises at least one in O type ring, pair of O type ring, wavy spring or coil compression springs.
3. according to claim 1 fluid regulating device, wherein, described self-aligning valve port further comprises holding member, the described offset part of its restriction is axially displaced with respect to described holding part.
4. according to claim 3 fluid regulating device, wherein, described holding member be arranged on described valve port an end relative with described biasing member near.
5. according to claim 3 fluid regulating device, wherein, described holding member comprises and is connected to described offset part and is suitable at least one in retaining ring, fixing clamp or C type folder against described holding part one end.
6. according to claim 3 fluid regulating device, wherein, described holding member is arranged in the circular groove of described offset part to help that described holding part is fixed to described offset part.
7. self-aligning valve port that is used for fluid regulating device, described fluid regulating device comprises entrance, outlet and control unit, wherein said self-aligning valve port is arranged between described entrance and described outlet, and described control unit has the controlling component that is suitable for respect to described valve port displacement, thereby control flowing of fluid between described entrance and described outlet, described self-aligning valve port comprises:
Holding part;
Offset part, it is at least partially disposed in described holding part and comprises seat ring; And
Biasing member, it is arranged between described holding part and described offset part;
Wherein, after the part of the described seat ring of the described offset part of the part of described controlling component contact, described offset part is automatically around the axis rotation vertical with the longitudinal axis of described holding part, until realize between the described seat ring of the seating face of described control unit and described offset part aiming at and sealing engagement.
8. according to claim 7 the self-aligning valve port that is used for fluid regulating device, wherein, described biasing member comprises at least one in O type ring, pair of O type ring, wavy spring or coil compression springs.
9. according to claim 7 the self-aligning valve port that is used for fluid regulating device, wherein, described self-aligning valve port further comprises holding member, the described offset part of its restriction is axially displaced with respect to described holding part.
10. according to claim 9 the self-aligning valve port that is used for fluid regulating device, wherein, described holding member comprises and is connected to described offset part and is suitable at least one in retaining ring, fixing clamp or C type folder against described holding part one end.
11. the self-aligning valve port that is used for fluid regulating device according to claim 10, wherein, described offset part comprises be used to the circular groove that receives described holding member.
12. the self-aligning valve port that is used for fluid regulating device according to claim 7, wherein, described offset part is clockwise or counterclockwise rotation with respect to the axis vertical with the longitudinal axis of described holding part, and move in the axial direction along the longitudinal extent of described holding part, until realize between the described seat ring of the described seating face of described control unit and described offset part aiming at and sealing engagement.
13. the self-aligning valve port that is used for fluid regulating device according to claim 7, wherein, after the part of the described control unit of contact, described offset part moves to the second place from primary importance automatically, in described primary importance, the longitudinal axis of described offset part and the axis alignment of described holding part, in the described second place, the longitudinal axis of described offset part and the angled setting of the longitudinal axis of described holding part, and form aligning and sealing engagement between the seating face of described biasing member and described control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484502.2U CN203023521U (en) | 2012-09-21 | 2012-09-21 | Fluid regulating device and automatic-registration valve port used for fluid regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484502.2U CN203023521U (en) | 2012-09-21 | 2012-09-21 | Fluid regulating device and automatic-registration valve port used for fluid regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023521U true CN203023521U (en) | 2013-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220484502.2U Withdrawn - After Issue CN203023521U (en) | 2012-09-21 | 2012-09-21 | Fluid regulating device and automatic-registration valve port used for fluid regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671938A (en) * | 2012-09-21 | 2014-03-26 | 艾默生过程管理调节技术公司 | Self-aligned valve port |
-
2012
- 2012-09-21 CN CN201220484502.2U patent/CN203023521U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671938A (en) * | 2012-09-21 | 2014-03-26 | 艾默生过程管理调节技术公司 | Self-aligned valve port |
| CN103671938B (en) * | 2012-09-21 | 2018-02-13 | 艾默生过程管理调节技术公司 | Autoregistration valve port |
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