CN202165615U - Fluid adjusting device with offset control component - Google Patents
Fluid adjusting device with offset control component Download PDFInfo
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- CN202165615U CN202165615U CN2011200884112U CN201120088411U CN202165615U CN 202165615 U CN202165615 U CN 202165615U CN 2011200884112 U CN2011200884112 U CN 2011200884112U CN 201120088411 U CN201120088411 U CN 201120088411U CN 202165615 U CN202165615 U CN 202165615U
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- acutator
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Abstract
The utility model relates to a fluid adjusting device, which comprises a valve actuator housing, a control component and an offset component, wherein the valve actuator housing is used for limiting a control cavity and an opening of the valve actuator; the control component is mounted in the control cavity, and comprises a piston, a valve rod, a lever and a component element; the lever is coupled between the piston and the valve rod; the control element is mounted to the valve rod opposite to the lever; the valve rod penetrates the opening of the valve actuator, so as to facilitate that the control element is arranged outside of the control cavity; the valve rod acts along with the slide displacement of the piston and performs the slide displacement relative to the opening of the valve actuator; and the offset component is partly supported in the opening of the valve actuator, and offsets the control element and the valve rod to the control cavity.
Description
Technical field
The disclosure relates to air regulating device, more specifically, relates to the internals element that is used for air regulating device.
Background technique
Usually the pressure of gas distributing system air feed can be according to the requirement of system, weather, supply source and/or other factors and difference.Yet majority is equipped with the terminal use's facility such as the gas device of stove, kitchen range etc. to need gas to be carried according to predetermined pressure and on the maximum capacity ground that perhaps is lower than air regulating device.Therefore, air regulating device is implemented the requirement of satisfying terminal use's facility to these distribution systems in order to the gas of guaranteeing to be transferred.Traditional air regulating device comprises the closed loop control valve acutator that is used for sensing and the pressure that controls institute's conveying gas substantially.
Fig. 1 describes traditional air regulating device 10.This controlling device 10 comprises valve acutator 12 and valve 14 substantially.Valve 14 limits inlet 16, for example is used for from the gas distributing system receiver gases, and valve 14 also limits outlet 18, for example is used to deliver the gas to the terminal use's facility such as factory, restaurant, apartment building etc. with one or more devices.In addition, valve 14 comprises throat 35, and it is set between inlet and the outlet and holds valve port 36.Gas must pass throat 35 and valve port 36 with process between the inlet 16 of valve 14 and outlet 18.
Therefore barrier film 24 operationally is coupled to valve rod 26, and is coupled to valve disc 28, so that via piston 32 and lever 25, come opening of control valve 14 based on the back pressure of institute's sensing.More specifically, as shown in the figure, barrier film 24 operationally is coupled to piston 32 via diaphragm plate assembly 33.Piston 32 operationally is coupled to lever 25 via the recess 41 of hourglass shape, and this recess 41 holds the first terminal 25a of lever 25.Lever 25 operationally is coupled to valve rod 26 via knuckle 37, and this knuckle 37 can be rotatably set in the recess 39 that is formed in the valve rod 26.
When configuration like this, when terminal use's operation equipment, stove for example, its gas distributing system downstream to controlling device 10 have proposed requirement, and promptly rate of discharge increases, thereby has reduced back pressure.Therefore, the back pressure that barrier film 24 reduces via sensing mouth 29 sensings, this allows control spring 30 expansions and with respect to the move up first terminal 25a of piston 32 and lever 25 of the direction of Fig. 1.The displacement of the first terminal 25a of lever 25 causes that knuckle 37 is pulled away from throat 35 and valve port 36 with valve rod 26 and valve disc 28.This causes that sealing surface 31 breaks away from from valve port 26, and this opens throat 35 and allows downstream unit to obtain the gas of desired amount.In case downstream unit is closed; For example demand stops and the pressure at outlet 18 places of valve 14 increases and make barrier film 24 being directed downwards with respect to Fig. 1; This has reduced by the first terminal 25a of lever 25 and valve rod 26 and valve disc 28 has been pushed back towards throat 35, so that sealing surface 31 engages valve port 36 hermetically and stops gas flow wherein.
In traditional controlling device 10, when valve 14 was opened, promptly valve rod 26 was removed from valve port 36 with valve disc 28, and the gas flow that passes valve 14 can apply power to the sealing surface 31 of valve disc 28.Because manufacturing tolerances and wearing and tearing, this power can cause valve disc 28 and valve rod 26 and be shifted with respect to the knuckle on the lever 25 37 that for example, can produce with slit between the wall of the recess 39 on knuckle 37 and the valve rod 26 and/or gap is the play of form.Under the power effect of the sealing surface that is applied to valve disc 28 31, the appearance in these slits and/or gap can cause that valve rod 26 moves with respect to knuckle 37.Additionally, this power that is applied to sealing surface can cause that the first terminal 25a of lever 25 moves in the recess 41 of the hourglass shape of piston 32.Therefore, these move and can cause sealing valve disc 28 more than desirably moving away from valve port 36, regulate himself and the position of proofreading and correct valve disc 28 until barrier film 24.In itself, under some environment, traditional controlling device can make the fluid flow through valve 14 produce temporary transient rising, and this causes the rising of back pressure or increases suddenly.
The model utility content
As previously mentioned, under some environment, traditional controlling device can make the fluid flow through valve produce temporary transient rising, and this causes the rising of back pressure or increases suddenly.The fluid regulation apparatus that a purpose of the present disclosure just is to provide new is to overcome above-mentioned defective of the prior art.
One side of the present disclosure has proposed a kind of fluid regulation apparatus, and it comprises: valve acutator shell, control unit and biasing member.Said valve acutator shell limits control chamber and valve acutator mouth.Said control unit is installed in the said control chamber, and comprises that piston, valve rod, lever and control unit, said lever are coupled between said piston and the said valve rod, and said control unit is mounted to the said valve rod on said lever opposite.Said valve rod is set to pass said valve acutator mouth, so that said control unit is set at the outside of said control chamber.Said valve rod is suitable in response to the sliding transfer of said piston with respect to said valve acutator mouth sliding transfer.Said biasing member is bearing in the said valve acutator mouth at least in part, and said control unit and said valve rod are setovered to said control chamber.
In one embodiment, said fluid regulation apparatus also comprises valve body, and it limits inlet, outlet, throat and valve nozzle, and said throat is set between said inlet and the said outlet.Said valve nozzle is coupled to said valve acutator mouth, so that said control unit is set at the displacement that is used in the said valve body between closed position and open position, said closed position is near said throat, and said open position is relatively away from said throat.
In one embodiment, said fluid regulation apparatus also comprises the guide insert and second spring seat.Said guide insert is set in the said valve acutator mouth and the limiting hole and first spring seat, and said hole holds said valve rod slidably.Said second spring seat is carried by said valve rod, and said biasing member is set between said first spring seat and said second spring seat.
In one embodiment, said second spring seat is set between the said control chamber and said guide insert of said valve acutator shell.
In one embodiment, said first spring seat comprises radially outward extending shoulder, and said shoulder is carried by said guide insert, and said second spring seat comprises the circular plate that is fixed to said valve rod.
In one embodiment, said piston is slidably along piston shaft, and said piston shaft extends along the longitudinal space of said piston, and said valve rod is slidably along stem shaft, and said stem shaft is extended along the longitudinal space of said valve rod.Said piston shaft is substantially perpendicular to said stem shaft.
In one embodiment, said lever is around the pivotal line pivoted, and the slip that is used to be transmitted between said piston and the said valve rod is moved.
In one embodiment, said fluid regulation apparatus also comprises barrier film, and said barrier film operationally is coupled to said piston.Said barrier film can move in response to the variation of the pressure in the said control chamber, and the mobile of said barrier film makes said piston slip move.
In one embodiment, said fluid regulation apparatus also comprises control spring, and said control spring is set between said valve acutator shell and the said barrier film.Said control spring is setovered said piston to said lever.
Another aspect of the present disclosure has proposed a kind of fluid regulation apparatus, and it comprises valve acutator, first spring seat, control unit, second spring seat and biasing member.The valve acutator shell limits control chamber and valve acutator mouth.Said first spring seat is fixedly mounted in the said valve acutator mouth of said valve acutator shell.Said control unit is installed in the said control chamber, and comprises that piston, valve rod, lever and control unit, said lever are coupled between said piston and the said valve rod, and said control unit is mounted to the said valve rod on said lever opposite.Said valve rod is set to pass said valve acutator mouth and said first spring seat, so that said control unit is set at the outside of said control chamber.Said valve rod is suitable in response to the sliding transfer of said piston with respect to said valve acutator mouth sliding transfer.Said second spring seat be coupled on the said valve rod, the position between the said control chamber of said first spring seat and said valve acutator shell.Said biasing member is set between said first spring seat and said second spring seat, and said control unit and said valve rod are setovered to said control chamber.
In one embodiment, said fluid regulation apparatus also comprises valve body, and it limits inlet, outlet, throat and valve nozzle, and said throat is set between said inlet and the said outlet.Said valve nozzle is coupled to said valve acutator mouth, so that said control unit is set at the displacement that is used in the said valve body between closed position and open position, said closed position is near said throat, and said open position is relatively away from said throat.
In one embodiment, said fluid regulation apparatus also comprises guide insert, and it is set in the said valve acutator mouth.Said guide insert limiting hole and said first spring seat, and said hole holds said valve rod slidably.
In one embodiment, said second spring seat is set between the said control chamber and said guide insert of said valve acutator shell.
In one embodiment, said first spring seat comprises radially outward extending shoulder, and said shoulder is carried by said guide insert, and said second spring seat comprises the circular plate that is fixed to said valve rod.
In one embodiment, said piston is slidably along piston shaft, and said piston shaft extends along the longitudinal space of said piston, and said valve rod is slidably along stem shaft, and said stem shaft is extended along the longitudinal space of said valve rod.Said stem shaft is set to be substantially perpendicular to said piston shaft.
In one embodiment, said lever is around the pivotal line pivoted, and the slip that is used to be transmitted between said piston and the said valve rod is moved.
In one embodiment, said fluid regulation apparatus also comprises barrier film, and it operationally is coupled to said piston.
In one embodiment, said fluid regulation apparatus also comprises control spring, and it is set between said valve acutator shell and the said barrier film, and said control spring is setovered said piston to said lever.
Another aspect of the present disclosure has proposed a kind of fluid regulation apparatus, and it comprises valve body, valve acutator shell, guide insert, control unit, valve disc and helical spring.Said valve body limits inlet, outlet, throat and valve nozzle, and said throat is set between said inlet and the said outlet.Said valve acutator shell limits control chamber and valve acutator mouth.Said valve acutator mouth is coupled to the said valve nozzle of said valve body.Said guide insert is arranged in the said valve acutator mouth of said valve acutator shell regularly, and comprises hole and radially outward extending shoulder, and it limits first spring seat.Said control unit is installed in the said control chamber; And comprise piston, barrier film, valve rod, lever and control unit; Said barrier film operationally is coupled to said piston; Said valve rod is slidably disposed in the said hole of said guide insert, and said lever operationally is coupled between said piston and the said valve rod, and said control unit is mounted at the said valve rod on said lever opposite and is set in the said valve body near said throat.Said piston is the pressure change that can stand in response to said barrier film and sliding along piston shaft.Said lever is around the pivotal line pivoted, is used for said piston moved along the slip of said piston shaft being transmitted as said valve rod and moving along the slip of stem shaft, and said stem shaft is perpendicular to said piston shaft.Said valve disc be coupled on the said valve rod, the position between the said control chamber of said first spring seat and said valve acutator shell, and limit said second spring seat.Said helical spring is set on the said valve rod, between said first spring seat and said second spring seat, and engages with said first spring seat and second spring seat.Said helical spring with said control unit and said valve rod to said control chamber and away from the said throat biasing of said valve body.
According to the fluid regulation apparatus in the disclosure, wherein the bias force that generates of biasing member has kept the compression on the element of lever, thereby advantageously reduces overflowing or play between discrete component.The influence that bias force reduces and/or eliminated any mechanical play in the system or overflowed; Thereby; Also reduce and/or eliminated the fluctuation of not expecting of fluid flow and pressure; Thereby advantageously guarantee to flow through the supply of the desired fluid of fluid regulation apparatus, and do not exist suddenly increase, protruding or other fluctuations.
Description of drawings
Fig. 1 is the side view of conventional adjustment means, and it is at some elements shown in the cross section, but from clearly former thereby need not to have section line;
Fig. 2 is the side view according to the controlling device of embodiment of the present disclosure structure, and it is at some elements shown in the cross section, but from clearly former thereby need not to have section line;
Fig. 3 is the detail drawing of the controlling device of Fig. 2; And
Fig. 4 is the graph-based of data, and its operating characteristics with conventional adjustment means is compared with the operating characteristics of the controlling device of foundation principles of construction of the present disclosure.
Embodiment
Although hereinafter has proposed the detailed description of many different mode of executions of the utility model, the statutory protection scope that should be appreciated that the utility model is limited the literal of the last claim that proposes of present patent application.Describing in detail and only explain as an example and in addition, do not describe each possible mode of execution of the utility model, is unpractical because describe each possible mode of execution, even be not impossible.Can through use existing technology or after this patent is submitted to the technology of model utility realize many alternative mode of executions, it will fall into the protection domain of the claim that limits the utility model.
It should also be understood that; Only if term in this patent, use " be defined as at this at this employed term ' _ _ _ _ _ ' ... the meaning " or similar sentence formula and clearly being limited; Otherwise do not have clearly or limit through hint this term the meaning intention or surpass the usual or common meaning of this term, and this type of term is not to be construed as limiting the scope (the language in claim) in any statement of having done based on the arbitrary portion of this patent.To a certain extent; For cited any term mode reference in addition to meet single implication in this patent in the last claim of present patent application; Do so just for the sake of clarity; And can not obscure the reader, and be not defined as the intention of single implication through hint or other term with this type claim.At last, clearly or impliedly,, and have no the narration of structure only if limit the claim element through enumerating word " device " and function, otherwise should be based on the scope of explaining any claim element that is suitable for of 122, the six sections of 35U.S.C §.
With reference now to Fig. 2 and 3,, according to the fluid regulation apparatus 100 of principles of construction of the present disclosure, for example the embodiment of air regulating device will be illustrated.
This air regulating device 100 comprises valve acutator 102 and controlling device valve 104 substantially.This controlling device valve 104 comprises inlet 106, for example is used to receive the gas from gas distributing system, and comprises outlet 108, for example is used to deliver the gas to the facility with one or more devices.Valve acutator 102 is coupled to controlling device valve 104, and comprises the control unit 122 with control unit 127.During operating mode, control unit 122 is suitable for the pressure of sensing at outlet 108 places of controlling device valve 104, i.e. the position of back pressure, and control control unit 127 is so that back pressure approximately equates with predetermined control pressure.
Continuation is with reference to figure 2, and controlling device valve 104 limits throat 110 and valve nozzle 112.Throat 110 is set between inlet 106 and the outlet 108.Valve port 136 is set in the throat 110 and limiting hole 148, and it has inlet 150 and outlet 152.Gas must pass hole 148 in the valve port 136 with process between the inlet 106 of controlling device valve 104 and outlet 108.Valve port 136 can remove from controlling device valve 104, so that valve port 136 can be by the replacement of different valve port, these valve ports have the different diameters or the hole of configuration, in order to the operation of adjustment controlling device valve 104 and flow performance to adapt to certain applications.In the disclosed embodiment, valve nozzle 112 limits opening 114.Valve nozzle 112 and opening 114 are set to along axle AV and center along axle AV, and it is substantially perpendicular to the inlet 106 of controlling device valve 104 and the axle AI/O of outlet 108.
As stated, valve acutator 102 comprises shell 116 and control unit 122.Shell 116 comprises housing element 116a and lower casing element 116b, and for example it is fixed tightly in together by a plurality of fastening piece (not shown).Last housing element 116a limits control chamber 118 and valve acutator mouth 120.Valve acutator mouth 120 is connected to the valve nozzle 112 of controlling device valve 104.In disclosed form, lower casing element 116b limits relief cavity 134 (relief cavity) and outlet valve 156, is used to implement degassing function, as in the art common understand.Lower casing element 116b also limits tower portion (tower portion) 158, and it is used to hold the part of control unit 122, and this will be illustrated.
More specifically, barrier film 124 comprises the barrier film of dish type, and it limits the middle body that opening 144 passes barrier film.Barrier film 124 is made up of resilient, airtight basically material; And as shown in the figure, its edge is fixed tightly between the lower casing element 116b of last housing element 116a and shell 116 of shell 116 and between top diaphragm plate 131a and diaphragm plate 131b hermetically.Therefore barrier film 124 is separated relief cavity 134 and control chamber 118.
Combination slip/supporting element 166 comprises collar 166a elongated, hollow and supporting nut 166b, and it threadably is connected to collar 166a.The opening 144 that collar 166a passes in the barrier film 124 extends, and comprises shoulder part 159, and it engages top diaphragm plate 131a.Be the center with barrier film 124 with upper and lower diaphragm plate 131a, 131b, in the position on shoulder part 159 opposites, supporting nut 166b threadably is connected to collar 166a, and as the spring seat of piston spring 168 1 ends.The other end joint ring 165 of piston spring 168, it is fixed to piston 132 through threaded fastening piece 167.As shown in the figure; Piston 132 extends through collar 166a hollow, elongated; So that during the superpressure situation, for example, when the back pressure of controlling device 100 is higher than set point or closes pressure; Piston spring 168 can be to packing ring 167 compression, and this makes barrier film and elongated collar 166a with respect to piston 132, with respect to the displacement that is directed downwards of Fig. 2.Such configuration can reduce the infringement to the device inner member under the superpressure situation.
As shown in the figure, piston 132 comprises member elongated substantially, clavate, and it has coupling gear 172, shoulder 174 and annular recess 177, and it is used to hold O shape ring 175.Coupling gear 172 comprises recess 141, and it is suitable for holding the part of valve disc subassembly 123, and in order to exercisable couple of facility between barrier film subassembly 121 and valve disc subassembly 123, this will be illustrated.In disclosed form, recess 141 has the cross section of hourglass shape, and this for example also can be known as arc cross section, or has and converge/cross section of divergent contour.As shown in the figure, when disposing like this, the top fulcrum 141a on piston 132 qualification opposites and bottom fulcrum 141b, it is placed in branch in the recess 141 basically.In other embodiments, recess 141 can have any other the shape that is suitable for the predetermined purpose of the disclosure usually.As shown in the figure, the shoulder of piston 132 174 engages the shoulder part 159 of the elongated collar 166a of combination slips/supporting elements 166, with based on the direction of Fig. 2, with respect to the displacement of the elongated collar 166a of direction limit that makes progress of piston 132.The fluid-tight that O shape ring 175 is provided between piston 132 and the collar 166a elongated, hollow; For example make during the superpressure situation that elongated collar 166a can be with respect to piston 132 displacement, also reduce simultaneously and/or prevent the leakage between control chamber 118 and relief cavity 134.
Pressure in the control spring 130 opposing control chambers 118, this pressure is sensed by barrier film 124.As said, this pressure is with identical at the pressure of outlet 108 places of controlling device valve 104 existence.Therefore, the power that is applied by control spring 130 is arranged to back pressure desired pressure or the control pressure that is used for controlling device 100.As said, via the coupling gear 172 of piston 132, above-mentioned barrier film subassembly 121 operationally is coupled to valve disc subassembly 123.
Particularly, valve disc subassembly 123 comprises control connection 126 and biasing arrangement 162.Control connection 126 comprises valve rod 178, lever 180 and control unit 127.These elements are shown in the cross section, and starting from clearly, reason does not have section line.Control unit 127 in the disclosed embodiments comprises valve disc 128, and it has circular seal face 129.In the disclosed embodiment, control connection 126 is constructed and be assembled to form to valve rod 178, lever 180 and valve disc 128 respectively.Particularly, valve rod 178 is linear substantially rods, and it has nose 178a and the recess 178b that is formed on valve rod 178 ends, and it is on the opposite of nose 178a.In the disclosed embodiment, recess 178b is a rectangle substantially, and is limited between first and second opposition sidewall 181a and 181b (shown in Fig. 3) of valve rod 178.Lever 180 comprises pivot pin end 180a and free end 180b.Pivot pin end 180a comprises hole 184, and it holds the pivot pin 186 that is carried by last housing element 116a.Pivot pin end 180a also comprises knuckle 187, and it has for example circle, avette or oval cross section, and this knuckle 187 is set in the recess 178b of valve rod 178.The free end 180b of lever 180 comprises linear substantially elongated finger, and it is set in the recess 141 of coupling gear 172 of piston 132.In the present embodiment, free end 180b extends through recess 141.Therefore, coupling gear 172 operationally is connected to barrier film subassembly 121 with valve disc subassembly 123, and with the mobile control connection 126 that is sent to of piston 132, this will be illustrated.
As illustrating in greater detail among Fig. 3, biasing arrangement 162 comprises guide insert 190 and biasing member 192, and each biasing member 192 is at least partially disposed in the valve acutator mouth 120 of valve acutator 102 of fluid regulation apparatus 100 of the present disclosure.Guide insert 190 comprises columniform substantially member, and it comprises standing part 190a, base portion 190b and targeting part 190c.As shown in the figure, hole 194 extends through the integral body of guide insert 190 with one heart, and holds the valve rod 178 of the control connection 126 of aforesaid valve disc subassembly 123 slidably.In itself, valve rod 178 is set to guide insert 190 and biasing member 192 concentric.
Still with reference to figure 3, the targeting part 190c of guide insert 190 comprises elongated cover, its along the hole 194 most length extend and its guiding and/or the adjustment that keeps valve rod 178.As shown in the figure, base portion 190b comprises annular shoulder and limits ring surface 191 that this annular shoulder radially stretches out from the targeting part 190c of guide insert 190.In disclosed form, base portion 190b and targeting part 190c are set in the valve acutator mouth 120, and ring surface 191 usefulness act on the spring seat of biasing member 192, and this will be illustrated.The standing part 190a of guide insert 190 also comprises annular shoulder, and it radially stretches out from targeting part 190c, also radially stretches out from base portion 190b.In itself, can say that base portion 190b has the maximum diameter greater than the maximum diameter of targeting part 190c, and standing part 190a has the maximum diameter greater than the maximum diameter of base portion 190b and targeting part 190c.In itself, as shown in the figure, guide insert 190 can be described to for example have step-like side cross section.Standing part 190a is set at valve acutator mouth 120 outside of valve acutator 102 and in the inside of the valve nozzle 112 of valve 104.More specifically; Standing part 190a is at least partially disposed in the annular recess 112a of valve nozzle 112; And be sandwiched between valve 104 and the valve acutator 102; This thus guide insert 190 is fixed to the position so that base portion 190b and targeting part 190c are provided with in the valve acutator mouth 120 in the disclosed embodiment regularly.
Except guide insert 190 and biasing member 192, biasing arrangement 162 of the present disclosure also comprises base plate 195, and its valve rod 178 by the control connection 126 of valve disc subassembly 123 carries.More specifically, base plate 195 can comprise plate round, dish type, and it limits vestibule 196.As shown in the figure, valve rod 178 extends through vestibule 196, so as base plate 195 can be fixed to valve rod 178, the position between nose 178a and recess 178b, this recess 178b holds the knuckle 187 of lever 180.In itself, base plate 195 be fixed to valve rod 178, in the control chamber 118 of valve acutator 102 and the position between the guide insert 190.Base plate 195 can be fixed to valve rod 178 with any foreseeable mode substantially.For example, base plate 195 can comprise one group of screw that is used for frictionally engaging valve rod 178, and it also allows with respect to valve rod 178 and regulates base plate 195 positions.In another embodiment; Valve rod 178 can comprise one or more annular recess; And base plate 195 can comprise the packing ring of separation, and it for example can be arranged in the one or more recesses on the valve rod 178, to fix its position between one or more positions through adjustable mode.In further embodiments, can be with any foreseeable mode that is fit to predetermined purpose with base plate 195 welding, bonding or be fixed to valve rod 178.
At last, shown in Fig. 2 and 3, the biasing member 192 of the disclosed embodiments comprises helical spring at present; It is set at the ring surface 191 and base plate 195 of the base portion 190b of guide insert 162; More specifically, and between the seating plane 198 of base plate 195, and the ring surface 191 and base plate 195 of the base portion 190b of joint guide insert 190; More specifically, the seat surface 198 of base plate 195.In itself, can say that the guide insert 190 of the disclosed embodiments constitutes first spring seat at present, and base plate 195 constitutes second spring seat.More specifically, the ring surface 191 of the base portion 190b of guide insert 190 constitutes first spring seat, and the seating plane 198 of base plate 195 constitutes second spring seat.
Through biasing arrangement 162 as be configured saidly; 192 pairs of base plates 195 that carried by valve rod 178 of biasing member apply load, setover towards the control chamber 118 of valve acutator 102 and away from the throat 110 and the valve port 136 of valve 104 with the valve rod 178 that will comprise control unit 127.In certain embodiments, but the power that is generated by biasing member 192 can be stable substantially in the whole operating range of control unit 127, and is in the acceptance tolerance scope.Compression on the element of this control connection 126 of holding this fluid regulation apparatus 100 of trying hard to keep, thereby advantageously reduce overflowing or play between discrete component is overflowed or play can be because the result that manufacturing tolerances and/or system wear cause.
During operation, when terminal use's operation equipment, it is to controlling device 100 proposition downstream requirements, and promptly rate of discharge increases, thereby has reduced back pressure.Therefore, the back pressure that barrier film 124 sensings reduce, and allow direction upward displacement barrier film 124, diaphragm plate 131a, 131b and the piston 132 of control spring 130 with respect to Fig. 2.As shown in Figure 2, piston 132 moves along piston shaft AD, and piston shaft AD constitutes the central shaft that extends along the longitudinal space of piston 132.The displacement of piston 132 is with the free end 180b upward displacement of lever 180, and this causes lever 180 around the pivotal line AP pivoted that is limited pivot pin 186, and lever 180 is mounted to pivot pin 186.This also causes in the recess 178b of knuckle 187 on being formed on valve rod 178 rotating and with respect to the direction right shift of Fig. 2.The displaced of knuckle 187 is pulled away from the throat 110 of control unit 127 from valve 104 valve rod 178 with valve port 136, thus the fluid supply of opening valve 104 and allowing to increase.Valve rod 178 slides along stem shaft AS, and stem shaft AS constitutes the central shaft that extends along the longitudinal space of valve rod 178.In the disclosed embodiment, stem shaft AS is identical with axle AV, and valve nozzle 112 is placed along axle AV extension and in being divided with valve acutator mouth 120.In itself, stem shaft AS also is substantially perpendicular to an AI/O, and the inlet 106 of valve 104 is placed along axle AI/O extension and in being divided with outlet 108.At last, in the disclosed embodiment, stem shaft AS also is substantially perpendicular to piston shaft AD.In the embodiment who substitutes, stem shaft AS can be directed by different ground.
Through above-mentioned structure; Biasing arrangement 162 generates continuous substantially power; So that the knuckle 187 of lever 180 always is positioned in the identical position among the recess 178b of valve rod 178; And the free end 180b of lever 180 always is positioned in the identical position in the recess 141 of piston 132, no matter and the power that is generated by any gas that flows through valve 104.More specifically, the biasing member 192 of biasing arrangement 162 is applying lasting power to the base plate 195 that is fixed to valve rod 178 on the direction of lever 180, thereby valve rod 178 is setovered towards control chamber 118.This power guarantees that the first side wall 181a of recess 178b engages with knuckle 187 with connecting substantially; And the free end 180b of lever engages with the last fulcrum 141a of piston 132 with connecting substantially, no matter and the size of the position of valve rod 178 and control unit 127 or the power that generated by the gas that flows through valve 104.The influence that bias force reduces and/or eliminated any mechanical play in the system or overflowed, thereby, also reduce and/or eliminated the fluctuation of not expecting of fluid flow and pressure, for example appear at those fluctuations that combine in the described conventional adjustment means 10 of Fig. 1.
For example, Fig. 4 shows the improved figure that enforcement reached that illustrates through biasing arrangement 162 of the present disclosure.Solid line among Fig. 4 is represented back pressure and the relation curve that flows through the fluid of conventional adjustment means, and dotted line is represented back pressure and flow through the relation curve with reference to the fluid of figure 2 and 3 disclosed controlling devices 100.Shown in solid line, in test, conventional adjustment means 10 has generated when the fluid that flows through valve 104 is about 2800Scfh (standard cubic foot hourly) and has increased suddenly or protruding back pressure.Particularly, before controlling device was taked to regulate necessarily and pressure drop is back to about 4.5in.w.c, back pressure rose to about 5in.w.c from about 4in.w.c (inches of water) suddenly.Through comparing, the dotted line among Fig. 4 has been illustrated, and biasing arrangement 162 assists to have guaranteed stable substantially back pressure during fluid flow is from about 0Scfh to about 6500Scfh.
Based on above-mentioned; Any machinery in the control connection 126 of biasing arrangement 162 compensator fluid controlling devices 100 of the present disclosure overflows or play; Thereby advantageously guarantee to flow through the supply of the desired fluid of controlling device 100, and do not exist suddenly increase, protruding or other fluctuations.
Though the disclosure has been described concrete embodiment, the utility model is not limited by the example that is provided, and comprises all scopes and the spiritual content that is limited following claim but mean.
Claims (19)
1. fluid regulation apparatus comprises:
The valve acutator shell, it limits control chamber and valve acutator mouth;
Control unit; It is installed in the said control chamber; Said control unit comprises piston, valve rod, lever and control unit; Said lever is coupled between said piston and the said valve rod, and said control unit is mounted to the said valve rod on said lever opposite, and said valve rod is set to pass said valve acutator mouth; So that said control unit is set at the outside of said control chamber, said valve rod is suitable in response to the sliding transfer of said piston with respect to said valve acutator mouth sliding transfer; And
Biasing member, it is bearing in the said valve acutator mouth at least in part, and said biasing member is setovered said control unit and said valve rod to said control chamber.
2. device according to claim 1 is characterized in that, also comprises valve body; It limits inlet, outlet, throat and valve nozzle; Said throat is set between said inlet and the said outlet, and said valve nozzle is coupled to said valve acutator mouth, so that said control unit is set at the displacement that is used in the said valve body between closed position and open position; Said closed position is near said throat, and said open position is relatively away from said throat.
3. device according to claim 1 is characterized in that, also comprises:
Guide insert, it is set in the said valve acutator mouth, the said guide insert limiting hole and first spring seat, said hole holds said valve rod slidably; And
Second spring seat, it is carried by said valve rod, and wherein said biasing member is set between said first spring seat and said second spring seat.
4. device according to claim 3 is characterized in that, wherein said second spring seat is set between the said control chamber and said guide insert of said valve acutator shell.
5. device according to claim 3 is characterized in that, wherein said first spring seat comprises radially outward extending shoulder, and said shoulder is carried by said guide insert, and said second spring seat comprises the circular plate that is fixed to said valve rod.
6. device according to claim 1; It is characterized in that; Wherein said piston is slidably along piston shaft, and said piston shaft extends along the longitudinal space of said piston, and said valve rod is slidably along stem shaft; Said stem shaft is extended along the longitudinal space of said valve rod, and said piston shaft is substantially perpendicular to said stem shaft.
7. device according to claim 6 is characterized in that, wherein said lever is around the pivotal line pivoted, and the slip that is used to be transmitted between said piston and the said valve rod is moved.
8. device according to claim 1; It is characterized in that, also comprise barrier film, it operationally is coupled to said piston; Said barrier film can move in response to the variation of the pressure in the said control chamber, and the mobile of wherein said barrier film makes said piston slip move.
9. device according to claim 8 is characterized in that, also comprises control spring, and it is set between said valve acutator shell and the said barrier film, and said control spring is setovered said piston to said lever.
10. fluid regulation apparatus comprises:
The valve acutator shell, it limits control chamber and valve acutator mouth;
First spring seat, it is fixedly mounted in the said valve acutator mouth of said valve acutator shell.
Control unit; It is installed in the said control chamber; Said control unit comprises piston, valve rod, lever and control unit; Said lever is coupled between said piston and the said valve rod, and said control unit is mounted to the said valve rod on said lever opposite, and said valve rod is set to pass said valve acutator mouth and said first spring seat; So that said control unit is set at the outside of said control chamber, said valve rod is suitable in response to the sliding transfer of said piston with respect to said valve acutator mouth sliding transfer;
Second spring seat, its be coupled on the said valve rod, the position between the said control chamber of said first spring seat and said valve acutator shell; And
Biasing member, it is set between said first spring seat and said second spring seat, and said biasing member is setovered said control unit and said valve rod to said control chamber.
11. device according to claim 10 is characterized in that, also comprises valve body; It limits inlet, outlet, throat and valve nozzle; Said throat is set between said inlet and the said outlet, and said valve nozzle is coupled to said valve acutator mouth, so that said control unit is set at the displacement that is used in the said valve body between closed position and open position; Said closed position is near said throat, and said open position is relatively away from said throat.
12. device according to claim 11 is characterized in that, also comprises:
Guide insert, it is set in the said valve acutator mouth, said guide insert limiting hole and said first spring seat, said hole holds said valve rod slidably;
13. device according to claim 12 is characterized in that, wherein said second spring seat is set between the said control chamber and said guide insert of said valve acutator shell.
14. device according to claim 12 is characterized in that, wherein said first spring seat comprises radially outward extending shoulder, and said shoulder is carried by said guide insert, and said second spring seat comprises the circular plate that is fixed to said valve rod.
15. device according to claim 10; It is characterized in that; Wherein said piston is slidably along piston shaft, and said piston shaft extends along the longitudinal space of said piston, and said valve rod is slidably along stem shaft; Said stem shaft is extended along the longitudinal space of said valve rod, and said stem shaft is set to be substantially perpendicular to said piston shaft.
16. device according to claim 15 is characterized in that, wherein said lever is around the pivotal line pivoted, and the slip that is used to be transmitted between said piston and the said valve rod is moved.
17. device according to claim 10 is characterized in that, also comprises barrier film, it operationally is coupled to said piston.
18. device according to claim 17 is characterized in that, also comprises control spring, it is set between said valve acutator shell and the said barrier film, and said control spring is setovered said piston to said lever.
19. fluid regulation apparatus comprises:
Valve body, it limits inlet, outlet, throat and valve nozzle, and said throat is set between said inlet and the said outlet;
The valve acutator shell, it limits control chamber and valve acutator mouth, and said valve acutator mouth is coupled to the said valve nozzle of said valve body;
Guide insert, it is arranged in the said valve acutator mouth of said valve acutator shell regularly, and said guide insert comprises hole and radially outward extending shoulder, and said shoulder limits first spring seat;
Control unit; It is installed in the said control chamber; Said control unit comprises piston, barrier film, valve rod, lever and control unit; Said barrier film operationally is coupled to said piston, and said valve rod is slidably disposed in the said hole of said guide insert, and said lever operationally is coupled between said piston and the said valve rod; Said control unit is mounted at the said valve rod on said lever opposite and is set in the said valve body near said throat; Said piston is the pressure change that can stand in response to said barrier film and sliding along piston shaft, and said lever is transmitted as said valve rod and moves along the slip of stem shaft so that said piston is moved along the slip of said piston shaft around the pivotal line pivoted, and said stem shaft is perpendicular to said piston shaft;
Valve disc, its be coupled on the said valve rod, the position between the said control chamber of said first spring seat and said valve acutator shell, said valve disc limits second spring seat; And
Helical spring; It is set on the said valve rod, between said first spring seat and said second spring seat; And engage with said first spring seat and second spring seat, said helical spring with said control unit and said valve rod to said control chamber and away from the said throat biasing of said valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200884112U CN202165615U (en) | 2011-03-24 | 2011-03-24 | Fluid adjusting device with offset control component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200884112U CN202165615U (en) | 2011-03-24 | 2011-03-24 | Fluid adjusting device with offset control component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165615U true CN202165615U (en) | 2012-03-14 |
Family
ID=45801440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200884112U Expired - Lifetime CN202165615U (en) | 2011-03-24 | 2011-03-24 | Fluid adjusting device with offset control component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
-
2011
- 2011-03-24 CN CN2011200884112U patent/CN202165615U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
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| CX01 | Expiry of patent term |