CN108571609A - Spring base for internal valve - Google Patents
Spring base for internal valve Download PDFInfo
- Publication number
- CN108571609A CN108571609A CN201710142427.9A CN201710142427A CN108571609A CN 108571609 A CN108571609 A CN 108571609A CN 201710142427 A CN201710142427 A CN 201710142427A CN 108571609 A CN108571609 A CN 108571609A
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- China
- Prior art keywords
- valve
- spring
- spring base
- valve body
- valve rod
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Classifications
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/307—Additional means used in combination with the main valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
A kind of internal valve, including：Valve body, the poppet for being couple to valve body, discharge valve, the valve rod for being slidably disposed in valve body and being operably coupled to discharge valve.The third place that valve rod can be moved to the second position of discharge valve opening from the first position that poppet and discharge valve are all closed and discharge valve is closed and poppet is opened, in response to pressure change, poppet can be moved towards closed position, and discharge valve can be opened.Spring base is couple to valve rod via holding member so that spring base is movably disposed in valve body and spring is operably coupled to valve rod via spring base, and is configured as that valve rod is made to bias to first position.
Description
Technical field
Present disclosure generally relates to internal valves, in particular to the spring base being set in internal valve.
Background technology
Internal valve is used for various commercial and industrial applications, to control in fluid-storing container and another container, hose, pipeline
Fluid flowing Deng between.Particularly, internal valve ought can between the first position and the second position shift hazardous material, compression liquid
Body and gas (such as propane, butane and NH3(anhydrous ammonia)) when take precautions against the drainage of this material.Internal valve uses flow control machine
Structure, in response to due to for example rupture, cut off or otherwise impaired flow path caused by unexpected cross various flow shape
Condition and close.This flow control mechanism is commonly known as poppet or overflow valve, is commonly used for needing in response to potential danger
The potential leakage of dangerous fluid or spilling and in automatic, safely cut-out fluid flowing application.
Poppet is typically based on the pressure difference on internal valve and operates.For example, when inlet pressure is approximately equal to outlet pressure
When power, poppet is opened.Before opening main valve, internal valve generally use discharge valve carrys out balanced or balance across flow control member
On pressure.In one example, internal valve can be used in entrance or the outlet of bulk storage tank, and keep tank will not be due to mistake
Big inside pressure tank and rupture.Discharge valve allows tank to add by drainage flow path and eventually by poppet drainage or drainage
The gas of pressure, until pressure tank drops to acceptable level until opening valve completely.
Invention content
It is a kind of for be connected to the internal valve of fluid container to may include valve body according to the first illustrative aspect, the valve body
With entrance, outlet and the main flow path of restriction between the inlet.Poppet can be couple to valve body and can
To be moved between the closed position that the entrance of the open position that the entrance of valve body is opened and valve body is closed.Discharge valve may include
Drainage valve body, the drainage valve body have hole, vent inlet, bleed outlet and are limited between vent inlet and bleed outlet
Drainage flow path.Discharge valve may be arranged to open and close vent inlet.Valve rod can be slidably disposed on valve body
In and be operably coupled to discharge valve.Actuator can be operably coupled to valve rod and it is operable with by valve rod from carrying
The first position that lift valve and discharge valve are all closed is moved to the second position of discharge valve opening and discharge valve is closed and poppet is beaten
The third place opened.When valve rod is in the third place, in response to pressure change, poppet may be arranged to towards closed position
Mobile, discharge valve may be arranged to open.Spring base can be couple to valve rod via holding member so that spring base is movably
It is arranged in valve body.Spring can be arranged in main flow path and be operably coupled to valve rod via spring base, and by
It is configured to that valve rod is made to bias to first position.
According to the second illustrative aspect, the internal valve for counterpressure difference may include valve body, the valve body have entrance,
It exports and limits main flow path between the inlet.Poppet may be arranged to open and close entering for valve body
Mouthful.Discharge valve may include drainage valve body, and the drainage valve body has hole, vent inlet, bleed outlet and is limited to drainage
Drainage flow path between entrance and bleed outlet.Discharge valve may be arranged to open and close vent inlet.Valve rod can be with
It is slidably disposed in valve body and is operably coupled to discharge valve.What valve rod can all be closed from poppet and discharge valve
First position be moved to discharge valve open and poppet close the second position and poppet open and discharge valve close
The third place.Internal valve further includes the spring base that valve rod is couple to via holding member so that spring base is movably disposed at valve
In body.Spring base includes the annular solid that the inner wall being spaced radially inwardly from by outer wall and with outer wall limits, and outer wall is arranged as working as valve
When bar moves between first position, the second position and the third place, the part and inner wall that are movably engaged valve body limit
It is dimensioned to accommodate the centre bore of valve rod.Internal valve further includes spring, and spring is arranged in main flow path and via spring
Seat is operably coupled to valve rod, and spring is configured as that valve rod is made to bias to first position.
According to third illustrative aspect, the internal valve for counterpressure difference may include valve body, the valve body have entrance,
It exports and limits main flow path between the inlet.Poppet may be arranged to open and close entering for valve body
Mouthful.Discharge valve may include drainage valve body, and the drainage valve body has hole, vent inlet, bleed outlet and is limited to drainage
Drainage flow path between entrance and bleed outlet.Discharge valve may be arranged to open and close vent inlet.Valve rod can be with
It is slidably disposed in valve body and is operably coupled to discharge valve.What valve rod can all be closed from poppet and discharge valve
First position be moved to discharge valve open and poppet close the second position and poppet open and discharge valve close
The third place.Spring base can be couple to valve rod via holding member so that spring base is movably disposed in valve body.Spring
Seat may include the annular solid that the inner wall being spaced radially inwardly from by outer wall and with outer wall limits, and outer wall is arranged as working as valve rod the
When being moved between one position, the second position and the third place, it is movably engaged a part for valve body, inner wall limits size setting
To accommodate the centre bore of valve rod.Spring base may also include the recess portion being formed in annular solid.Holding member can be partly arranged
In recess portion.Spring can be arranged in main flow path and be operably coupled to valve rod via spring base.Spring can be with
It is configured as that valve rod is made to bias to first position.
Further according to any one or more of aforementioned first aspect and second aspect, internal valve can also include following
Any one or more of preferred form.
In a preferred form, holding member may include the ring for being couple to valve rod.
In a preferred form, holding member may include being couple to the ring of valve rod, and ring can be placed in and be formed in bullet
In recess portion in spring abutment, to which spring base is maintained between spring and ring.
In a preferred form, holding member may include the pin for the part for extending through valve rod.
In a preferred form, holding member may include the pin for the part for extending through valve rod, and sells and can dispose
In the recess portion in being formed in spring base, to which spring base is maintained between spring and pin.
In a preferred form, holding member may include the pin for the part for extending through valve rod, and valve rod can be along vertical
Axis moves, and sells and can be oriented along the axis substantially perpendicular to the longitudinal axis.
In a preferred form, holding member may include the annular shoulder of valve rod.
In a preferred form, spring base may include size be set to accommodate spring groove, and groove can by with
It is set to limited spring moving horizontally relative to valve rod.
In a preferred form, pilot sleeve can be located between a part and valve body for spring base.
In a preferred form, spring base can have arrival end and outlet end, arrival end that can go out towards the entrance of valve body
Mouth end can be towards the outlet of valve body, and the arrival end of spring base can be arranged close to spring, and holding member can be close to bullet
The outlet end of spring abutment is arranged.
In a preferred form, spring base may include the ring that the inner wall being spaced radially inwardly from by outer wall and with outer wall limits
Body, outer wall may be arranged to, when valve rod moves between first position, the second position and the third place, be movably engaged
A part for valve body, inner wall can limit the centre bore for being dimensioned to accommodate valve rod.
Description of the drawings
It is considered that the feature of the novel present invention is specifically described in the following claims.It refers in conjunction with the accompanying drawings following
Illustrate, the present invention can be best understood, wherein similar reference numeral identifies similar element in several figures, in attached drawing
In：
Fig. 1 is constructed according to the introduction of present disclosure and in the cross-sectional view for closing the internal valve in configuration, internal valve
Including valve rod, an example of the first spring base and maintaining part for the first spring base to be operably coupled to valve rod
One example of part；
Fig. 2 is that the interior valve module of Fig. 1 is in the cross-sectional view in injection drainage configuration；
Fig. 3 is that the interior valve module of Fig. 1 is in the cross-sectional view opened in configuration；
Fig. 4 is that the interior valve module of Fig. 1 is in the cross-sectional view in limited drainage configuration；
Fig. 5 is valve rod, the first spring base and the holding member for valve rod to be operably coupled to the first spring base
Perspective view；
Fig. 6 is coupled to the perspective view of the holding member of valve rod；
Fig. 7 is the amplification cross-sectional view of a part for the internal valve of Fig. 1-4, shows the first spring base and by the first spring base
It is operably coupled to the holding member of valve rod；
Fig. 8 is another exemplary perspective view according to the first spring base of the introduction construction of present disclosure；
Fig. 9 is that the hole being configured in valve rod according to the introduction of present disclosure can by the first spring base
It is operatively coupled to another exemplary close up view of the holding member of valve rod；
Figure 10 is the amplification cross section of the first spring base of Fig. 8 in the internal valve for Fig. 1-4 and the holding member of Fig. 9
Figure.The holding member of Fig. 8；
Figure 11 is similar to Figure 10, but shows that the introduction according to present disclosure is configured to that the first spring base can be grasped
It is couple to another example of the holding member of valve rod with making；And
Figure 12 is the schematic diagram of the interior valve module of Fig. 1 for being attached to upstream fluid source of introduction according to the present invention.
Specific implementation mode
Although following context elaborates one or more detailed description of illustrative embodiments of the present invention, should manage
Solution, the scope of law of the invention are limited by the word of the claim illustrated in this patent ending place.Following detailed description will
It is construed as merely illustrative, and does not illustrate the possible embodiment of each of the present invention, because explanation is each possible
Even if embodiment is not that impossible be also unpractical.Current techniques can be used or developed after the applying date of this patent
Technology implement many alternate embodiments, and these alternate embodiments will belong to the model for limiting the claim of the present invention
In enclosing.
Fig. 1 shows exemplary internal valve 100, also referred herein as interior valve module, including poppet 102, discharge valve
104, valve rod 106, actuator 108 and valve body 110.Valve body 110 includes entrance 112, outlet 114 and is limited to 112 and of entrance
Main flow path 116 between outlet 114.Poppet 102 is arranged as being coupled or being installed on system therein based on internal valve 100
Pressure and/or fluid flow rate and the entrance 112 for opening and closing valve body 110.It is interior passing through fluid pumping in hyperbaric environment
Before valve 100, the balanced pressure between upstream fluid source and downstream fluid source or fluid container may be necessary.It is this equal
Weighing apparatus can be realized by discharge valve 104.Discharge valve 104 includes drainage valve body 118, and drainage valve body has vent inlet 120, drainage
Outlet 122, and limit the drainage flow path 124 between vent inlet 120 and bleed outlet 122.Valve rod 106 is slideably
It is arranged in valve body 110 and drainage valve body 118, and is operably coupled to both discharge valve 104 and actuator 108.
Internal valve 100 can mount such that the first part of valve 100 or upper part 126 are arranged as and first or upstream flow
Body source (such as pipeline, tank car (bobtailtruck) or tank) is in fluid communication, and the technique stream of relatively high pressure can be introduced at this
Body.The second part or low portion 128 of valve 100 are arranged as with second or downstream fluid source (for example, pump, pipeline or hose, tank
Vehicle) it is in fluid communication, internal valve 100 provides it process fluid.Valve body 110 includes for arriving the coupling of internal valve 100 (for example, installation)
The flange portion 130 of pipe-line system, holding vessel, tank car system or any other suitable fuid distribution system.For example, Figure 12 shows
Internal valve 100 is gone out, the upstream fluid fluid communication with 131 form of tank, tank 131 includes to be transported to mesh by internal valve 100
Ground fluid, such as gas-pressurized or liquid.The first part 126 of internal valve 100 including entire discharge valve 104 can immerse
It is surrounded in relatively high pressure fluid or by relatively high pressure fluid.Second part 128 can be arranged in the outside of tank 131, in valve body
Reception conduit 132 at 110 outlet 114, such as pipe, hose or any other suitable conduit.Process fluid can be from tank 131
It is flowed by conduit 134 (such as hose), and by internal valve 100.When discharge valve 104 is opened, process fluid can flow
It is arrived at by the outlet 114 of valve body 110 by drainage flow path 124 and main flow path 116, such as another
Holding vessel and/or additional Process Control System.When poppet 102 is opened, process fluid can flow through entrance 112,
By major fluid flow path 116, and flow out the outlet 114 of valve body 110.
Actuator 108 can be detachably coupled to valve body 110 so that can be connected with systematic pipeline in internal valve 100
Meanwhile actuator 108 is removed in the case where that need not remove valve 100 from system.Actuator 108 is rotatable convex including being couple to
The bar 220 of wheel 222, bar 220 make cam 222 around axis D rotations to engage the bottom end 140 of valve rod 106 and move in the axial direction
Ovable valve stem 106.Although the actuator 108 in shown example includes rotatable bar 220 and cam 222, present disclosure
Interior valve module 100 be not limited to shown in actuator devices.For example, in other embodiments, actuator 108 can be automatic or hand
The rotatable or linear driving mechanism of dynamic operation, is arranged between first position, the second position and the third place and moves
Valve rod 106.In addition, another embodiment of valve 100 may include additional operating position, wherein actuator 108 is by valve rod
106 are moved to the position between any two position in first position, the second position and the third place.It is this additional at one
Operating position, discharge valve 104 and poppet 102 can be opened.
The function and operation of interior valve module 100 will illustrate in four sequence operative configurations：Closing shown in FIG. 1 configuration,
Injection drainage configuration, opening shown in Fig. 3 configuration and limited drainage configuration shown in Fig. 4 shown in Fig. 2.The operation of valve 100 is matched
Setting can be selected by actuator 108, and actuator 108 is operably coupled to the bottom end 140 of valve rod 106.Actuator 108 is operable
With the mobile valve rod 106 between first position, the second position and the third place.Valve rod 106 can be along the longitudinal axis A of internal valve 100
Or it is moved along the axis for being parallel to longitudinal axis A.When valve rod 106 is in first position, poppet 102 and discharge valve 104 all close
It closes, and actuator 108 is not engaged or connect with the bottom end of valve rod 106 140.First spring 146 is arranged as biasing internal valve 100
In closed position.Opposite with bottom end 140, the top 144 of valve rod 106 is operably coupled to discharge valve 104 so that actuator
108 can control discharge valve 104 by moving valve rod 106 along longitudinal axis A.Second spring 148 is arranged as that poppet 102 is made to exist
Biasing is with fluid-responsive pressure change between open position and closed position.As being explained in more detail below, the second bullet
Spring 148 is arranged as that poppet 102 is made to move towards closed position, and is arranged as opening when valve rod 106 is in the third place
Discharge valve 104.
The valve body 110 of internal valve 100 surrounds a part for the first spring 146 and valve rod 106.First spring 146 is maintained at
Between one spring base 152 and first group of part 156 that extends internally of valve body 110, wherein the first end 157 of spring 146 is against
The surface of one spring base 152 disposes, and the second end 158 opposite with first end 157 of spring 146 is against the part 156 that extends internally
Placement.First spring 146 can close spring, and valve rod 106, and cloth are operably coupled to via the first spring base 152
It is set to and biases valve rod 106 in a downward direction to close poppet 102 and discharge valve 104.First spring 146 is carried to valve rod 106
For downward spring force, valve rod 106 is promoted to occupy first position shown in FIG. 1.Extend internally the restriction of part 156 looping pit 161,
It is provided with bushing 159.159 guiding bar 106 of bushing passes through valve body 110 and is conducive to the smooth axial shifting of valve rod 106
It is dynamic.In addition, valve body 110 defines seating face or valve seat 160 at entrance 112, entrance 112, which leads to, is connected to upstream fluid source
The hole 164 of major fluid flow path 116.When poppet 102 is in an open position, established between entrance 112 and outlet 114
Major fluid flow path 116.
Poppet 102 is couple to valve body 110, and operable to open and close the entrance 112 of valve body 110.Poppet
102 are also operably coupled to drainage valve body 118.When poppet 102 in the open position for opening entrance 112 and closes entrance
When being moved between 112 closed position, the entrance 112 of drainage valve body 118 toward and away from valve body 110 moves.That is, in internal valve
In 100 shown example, drainage valve body 118 is inherently a part for the operation of poppet 102.In the example shown, drainage
Valve body 118 is depicted as disc type valve module comprising or carry poppet 102 valve disc 168, valve disc 168 engage valve seat 160 with
Limit flowing of the fluid by valve body 110.Poppet 102 can be in figure 3 open position (wherein, valve disc 168 and discharge valve
Body 118 is spaced apart with valve seat 160) and Fig. 1,2 and 4 in closed position (wherein, valve disc 168 against valve seat 160 dispose) between
It is mobile.Disk 168 is couple to the disk holder part of drainage valve body 118 by one or more fasteners 180 by disk fixator 172
176。
Discharge valve 104 is couple to valve rod 106, and includes the drainage valve body with the hole 184 for accommodating second spring 148
118.Second spring 148 can be overflow spring, and be arranged as that drainage valve body 118 is made to bias towards seating face 160, with logical
The flow velocity for crossing valve 100 limits fluid stream mistake when being more than specified or predetermined flow rate (for example, overflow limit or overflow flow velocity of valve 100)
Hole 164.Second spring 148 includes bottom end 190 and top 192, and is maintained between second spring seat 194 and shoulder 196, shoulder
Portion 196 is limited by hole 184 and cylindrical part 198.192 bearing shoulder 196 of top of second spring 148, second spring 148
Bottom end 190 supports second spring seat 194.Second spring seat 194 is operably coupled to valve rod 106 so that second spring seat 194
It moves together as valve rod 106 moves in the axial direction along longitudinal axis A and with valve rod 106.Spring base 194 limits setting and is putting
At least part of one or more of flow path flow orifice 210 is let out, drainage flow path allows in 120 He of vent inlet
Fluid communication between bleed outlet 122.Relief outlet 200 can be integrally formed with drainage valve body 118, and particularly, can
The opening formed with the cylindrical part 198 being limited to by drainage valve body 118.Relief outlet 200 is arranged in drainage flow path 124
Interior and fluidly connect vent inlet 120 and hole 184, hole 184 fluidly connects vent inlet 120 and bleed outlet 122.Drainage disk
204 can be in opening blow-off position (wherein, drainage disk 204 and drainage seat 208 and the interval of relief outlet 200 as shown in Figure 2 and Figure 4
Open) and closing blow-off position as shown in figures 1 and 3 (wherein, drainage disk 204 against drainage seat 208 dispose, by relief outlet
200 and upstream fluid source completely cut off) between move.In short, poppet 102 and discharge valve 104 form internal valve 100.
Referring now specifically to Fig. 1, internal valve 100 is in first or shutoff operation configuration.In closing configuration, poppet
102 is in the closed position, and discharge valve 104, which is in, closes blow-off position so that outlet 114 completely cuts off with upstream fluid source.By drainage
The valve disc 168 that valve body 118 carries is closed by second spring 148 and/or by the pressure direction in the upstream fluid source at entrance 112
Closed position biases.The drainage disk 204 of discharge valve 104 is inclined towards blow-off position is closed via valve rod 106 by the first spring 146
It sets.When poppet 102 and discharge valve 104 are all closed, valve disc 168 engages valve seat 160 to prevent fluid flow via 164, and
Drainage disk 204 engages drainage seat 208 and crosses relief outlet 200 to prevent fluid flow.
In Fig. 1, the operating lever 220 of actuator 108 is in first position, and thus rotatable cam 222 does not engage valve rod
106 bottom end 140.However, when operation actuator 108 with by valve rod 106 on the axial direction along longitudinal axis A from shown in Fig. 1
Position when being moved to position shown in Fig. 2, bar 220 is moved to the second position, this causes cam 222 to be rotated around axis D, until convex
The bottom end 140 of 222 engagement valve rod 106 of wheel.In this example, the second position of bar 220 corresponds to it relative to first position 35
Spend the midpoint of the travel path of positioning.Valve rod 106 to position shown in Fig. 2 movement between the first spring base 152 and valve body 110
The first spring 146 is compressed, drainage disk 204 is made to move away drainage seat 208, is moved to configure internal valve 100 from shutoff operation
To injection drainage configuration.
In the injection drainage configuration of Fig. 2, valve rod 106 is in the second position, and poppet 102 remains turned-off, but discharge valve
104 is in an open position, to allow the fluid from upstream fluid source to enter vent inlet 120, the balanced pressure across valve 100
Difference.
A part for the valve rod 106 being arranged in relief outlet 200 includes that diameter reduces or sunk part 224, to allow
Fluid flows between the cylindrical part 198 and valve rod 106 of drainage valve body 118.In injection drainage configuration, sunk part
224 form clearance G 1 between valve rod 106 and relief outlet 200.By configured in this way, discharge valve 104 allows the fluid of bigger
It flows through relief outlet 200 and arrives drainage flow path 124, this can cause the faster pressure across valve 100 balanced.It is formed in
Drainage flow path 124 is fluidly connected to the entrance 112 of poppet 102 by the flow orifice 210 in two spring bases 194, allows to flow
Body continues to flow through valve 100 until upstream pressure and downstream pressure are almost equal.Poppet 102 is maintained in its closed position, Zhi Daoshang
The pressure for swimming fluid source is less than the spring force of second spring 148 so that second spring 148 is expanded and drainage valve body 118 exists
Axial direction is upwards towards open position.The gap provided relative to the position of relief outlet 200 by the sunk part 224 of bar 106
G1 can accelerate the balanced of internal valve 100 together with the flow orifice 210 of second spring seat 194.
When fluid crosses discharge valve 104 from upstream fluid source stream and enters poppet 102, the first spring 146 and the second bullet
Spring 148 is compressed.First spring base 152 is movably arranged (for example, slideably) at pilot sleeve 151 (for example, bushing),
Pilot sleeve 151 is located at the looping pit for being limited and being located therein by second group of opposite part 155 that extends internally of valve body 110
In 153, and valve rod 106 is couple to by holding member 154 so that the first spring base 152 is relative to pilot sleeve 151 and valve
The hole 153 of body 110 is movably arranged (for example, slideably) in valve body 110.Therefore, when valve rod 106 moves up,
First spring base 152 causes the first spring 146 to be pressed relative to 146 applied force of the first spring (in this case, upward power)
In extending internally on part 156 for valve body 110.Second spring seat 194 is operably coupled to valve via ring (for example, folder 230)
Bar 106, and as valve rod 106 moves up in the axial direction and further moves in the hole 184 of discharge valve 104.Second
Spring 148 compresses between the shoulder 196 and second spring seat 194 of drainage valve body 118.As shown in Fig. 2, by second spring 148
The power being applied on shoulder 196 and spring base 194 is also not enough to overcome the pressure in the upstream fluid source on poppet 102, therefore
Poppet 102 is maintained in its closed position.In another example, second spring seat 194 can be by extend through the pin of valve rod 106
Or the recess portion by being formed in the surface of valve rod 106 or groove are couple to valve rod 106.
When operation actuator 108 from the second position (Fig. 2) by valve rod 106 to be moved to the third place (Fig. 3) in the axial direction
When, bar 220 is moved to the third place by completing its travel path, to further around axis D rotation cams 222 and further
Drive up valve rod 106.The first spring 146 and second spring 148 are further compressed in the movement of valve rod 106 to position shown in Fig. 3,
This forces poppet 102 to be opened, because the pressure in upstream fluid source is approximately equal to the pressure in downstream fluid source, to make internal valve
100 are moved to opening operation configuration from injection drainage configuration.
Fig. 3 shows the internal valve 100 in opening operation configuration, wherein poppet 102 is in an open position, allows
Fluid enters the entrance 112 of valve 100, access aperture 164, by main flow path 116, and via outlet from upstream pressure source stream
114 leave valve 100.When second spring 148 is expanded in the axial direction and moves up drainage valve body 118 simultaneously far from entrance
When 112, discharge valve seat 208 and the drainage disk 204 of drainage valve body 110 meet.In response to across the pressure difference on valve 100, the second bullet
The expansion of spring 148 causes second spring seat 194 to be slid downwardly into hole 184.
However, when upstream pressure overcomes the spring force of second spring 148, poppet 102 moves back to closed position.
Alternatively, it can be more than specific or scheduled flow velocity by the flow velocity of valve 100, cause drainage valve body 118 towards valve seat 160
Movement is to close poppet 102.Under any circumstance, the closing of poppet 102 is by the opening operation shown in Fig. 3 of valve 100
Configuration is moved to limited drainage configuration shown in Fig. 4.In limited drainage configuration, discharge valve 104, which is in, opens blow-off position.
Therefore the sunk part 224 of valve rod 106 is placed on 200 top of relief outlet.In this position, sunk part 224 is in relief outlet 200
In setting be not enough to form clearance G 1, but clearance G 2 is defined between valve rod 106 and valve port 200.Clearance G 2 is less than
The clearance G 1 formed by the sunk part 224 and valve port 200 of valve rod 106 in injection drainage configuration.Match relative in injection drainage
The middle amount for allowing the fluid by 200 drainage of relief outlet is set, the formation of clearance G 2 allows limited amount fluid to pass through relief outlet 200
Drainage.
According to the introduction of present disclosure, discharge valve 104 and poppet 102 provide and keep security of system and allow to put
The relief function that valve 104 and poppet 102 open and close is let out, as shown in Figs 1-4.When flow velocity becomes excessively high in valve 100,
Relief function flows into entrance 112 to protect system by volitional check fluid.Particularly, poppet 102 be based on inlet pressure and
Pressure difference operation between outlet pressure, and second spring 148 has overflow spring rate, when the flow velocity by valve 100 is super
When crossing specific or predetermined flow rate, which makes drainage valve body 118 and valve disc 168 be moved towards seating face 160.When entering
When mouthful pressure is substantially greater than outlet pressure, carries and kept in the closing configuration shown in Fig. 1 of drainage valve body 118 of valve disc 168
It is biased towards seating face 160.Discharge valve 104 is arranged as pressure balanced or between balance entrance 112 and outlet 114, discharge valve
104, which can be placed in valve 100 injection drainage shown in Fig. 2, configures, in the fluid drain to internal valve 100 to allow specific quantity.When
When inlet pressure is approximately equal to outlet pressure, second spring 148 opens poppet 102, to allow fluid to flow through internal valve 100, such as
Shown in Fig. 3.Once poppet 102 is opened, the fluid flowing more than the spring rate of second spring 148 can force poppet 102
It is closed against second spring 148, as shown in Figure 4.In limited drainage configuration, discharge valve 104 is opened less amount of to allow
In fluid drain to valve 100.
Fig. 5-7 will be combined to illustrate the additional detail about the first spring base 152 and holding member 154 now.Although in conjunction with
The internal valve 100 of Fig. 1-4 shows the first spring base 152 and holding member 154, but present disclosure is not intended to first by shown in
Spring base 152 and holding member 154 are confined to internal valve 100.That is, the first spring base 152 and/or holding member 154 can combine
Different internal valve, fluid conditioner, control valve for fluids or other process control equipments use.
As shown in Fig. 5 and Fig. 7, the first spring base 152 has annular solid 300 and is formed in cylinder 300 and along vertical
Axis A extends through the pilot hole 302 of cylinder 300.Cylinder 300 is by outer or peripheral cylindrical wall 304 and outer wall 304
The inner cylinder wall 308 being spaced radially inwardly from, and the bottom 312 of connection outer wall 304 and inner wall 308 limit.When the first bullet
When spring abutment 152 is arranged in internal valve 100, with valve rod 106 along longitudinal axis A first position, the second position and the third place it
Between when moving, at least part of outer wall 304 is movably engaged the inner surface 314 of pilot sleeve 151.Pilot sleeve 151 exists
In the example use the ring bush made of PTFE or any other suitable materials form, when the first spring base 152 with
When valve rod 106 and being moved along longitudinal axis A and move (such as sliding) along longitudinal axis A in the valve body 110, pilot sleeve 151 helps
In smoothly guiding the first spring base 152.Meanwhile inner wall 308 helps to limit pilot hole 302, in this example, pilot hole
302 be the looping pit for receiving a part for valve rod 106 and passing through so that valve rod 106 frictionally engages inner wall 308, rather than inside
It slides or slides relative to the first spring base 152 during the operation of valve 100.
Referring still to Fig. 5 and 7, the first spring base 152 further includes annular recess 316 and annular groove 320.316 shape of recess portion
At or be limited in the outlet end 324 of the outlet 116 towards valve body 110 of annular solid 300.Specifically, recess portion 316 is exporting
It is formed by first or the bottom surface 328 of outer wall 304 and bottom 312 and therebetween or is limited in end 324.Therefore, the size of recess portion 316
It sets and is arranged as to accommodate holding member 154, the first spring base 152 is couple to valve rod 106 by holding member 154.320 shape of groove
At or be limited to annular solid 300 opposite with outlet end 324 and towards in the arrival end of the entrance of valve body 110 114 332.Tool
For body, groove 320 in arrival end 332 by outer wall 304, inner wall 308 and second or the top surface 336 of bottom 312 and therebetween
It is formed or is limited.Groove 320 is dimensioned to accommodate the first end 157 of spring 146, as shown in the figure.As annular recess 316
With the construction of annular groove 320 as a result, the thickness of the first part 340 for being located at 312 top of bottom of outer wall 304 is less than outer wall
The thickness of 304 second part 344 for being located at 312 lower section of bottom.In addition, the height of outer wall 304 is more than the height of inner wall 308.
As briefly discussed, when the first spring base 152 is in internal valve 100, the first spring base 152 is arranged in hole
In 153 (and partly in pilot sleeve 151), and valve rod 106 is operably coupled to via holding member 154.Such as
Shown in Fig. 5-7, the holding member 154 in the present embodiment is using the U-shaped opening 356 for having main body 352 and being formed in main body 352
Split ring 348 form.U-shaped opening 356 is dimensioned to accommodate the reduced diameter portion point 360 of valve rod 106 so that opening
Ring 348 is arranged in the reduced diameter portion point 360 of valve rod 106, and partly reduces around diameter (if not substantially)
Part 360.Main body 352 also has the outer diameter for being more than valve rod 106 adjacent to the part of reduced diameter portion point 360 so that split ring 348
A part outside of valve rod 106 is extended outwardly into from valve rod 106.Reduced diameter portion point 360 is located in the first spring base 152
The lower section (or downstream) of bottom 312 so that split ring 348 is arranged in recess portion 316, and is completely recessed the first spring base in turn
In 152.Although split ring 348 is theoretically movably disposed in recess portion 316, split ring 348 engages the bottom surface of bottom 312
328, as shown in Figure 7.Therefore, the bottom 312 of the first spring base 152 be arranged and be maintained at the first spring 146 and split ring 348 it
Between, the first spring 146 and split ring 348 are all used to that the first spring base 152 to be kept to be operably coupled to valve rod 106 and and valve
106 radial and axial alignment of bar.
As this arrangement as a result, when valve rod 106 moves up along longitudinal axis A (such as to the second position or third position
Set) when, split ring 348 is on bottom surface 328, more generally, applies upward power on the first spring base 152, drives up
One spring base 152 (and the first spring 146 is made to be pressed on interior shoulder 156).On the contrary, when valve rod 106 is moved down along longitudinal axis A
When (for example, returning to first position), the spring 146 in groove 320 is placed in along longitudinal axis A drivings the downwards against top surface 336
One spring base 152 is until bottom 312 re-engages with split ring 348.
In other examples, the first spring base 152 can change, but still execute expectation function as described herein.One
In a example, the first spring base 152 can not include annular recess 316, and split ring 348 (or other holding members 154)
It can be disposed with flushing with the bottom surface of the first spring base 152.In another example, the first spring base 152 can not include annular
Groove 320, and the first spring 146 can be disposed with flushing with the top surface of the first spring base 152 (without be provided in annular it is recessed
In slot 320).In further example, outer wall 304 can have consistent thickness so that the first part 340 of outer wall 304
It can be with thickness having the same (rather than first part 340 be thinner than second part 344) with second part 344.
Fig. 7-10 shows the first spring base 452 (Fig. 7 and 10) (rather than the first spring base that can be used in internal valve 100
152) another example and the maintaining part that can be used for the first spring base 452 being operably coupled to valve rod 106 (vice versa)
Another example of part 154 (Fig. 8-10).Although the two additional examples illustrate related to each other, but it is to be understood that this
A little examples need not be used together.That is, the first spring base 452 can use split ring 348 or another holding member 154 operable
Ground is couple to valve rod 106, holding member 154 shown in Fig. 8-10 can be used for by the first spring base 152 or another first
Spring base is operably coupled to valve rod 106 (vice versa).
As shown in figures 7 and 10, the first spring base 452 is substantially similar to the first spring base 152, wherein common component makes
It is identified with like reference numerals, but the difference is that, the annular recess 516 of spring base 452 is more recessed than the annular of spring base 152
Portion 316 is shallow, and pilot sleeve 151 is integrally formed around a part for outer wall 504.As seen in figs. 8-10, in this example
Holding member 154 using cylindrical pin 600 form, cylindrical pin 600 be arranged in round hole 604, round hole 604 formation
In the part 606 of the close bottom end 140 of valve rod 106 and pass through the part 606.When cylindrical pin 600 is arranged in hole 604
When, cylindrical pin 600 extends fully through valve rod 106 and extends radially outwardly, and cylindrical pin 600 is along substantially vertical
Directly in (if not accurate vertical in) axis 608 of longitudinal axis A orients.The part 606 of valve rod 106 including hole 604 is located in
The lower section (or downstream) of the bottom 512 of one spring base 452 so that pin 600 is partially positioned in recess portion 516, and portion in turn
Divide in recessed first spring base 452 (different from the split ring 348 being completely recessed in the first spring base 452).With split ring 348
Similar, pin 600 engages the bottom surface 528 of bottom 512, as shown in Figure 10.Therefore, the bottom 512 of the first spring base 452 is arranged and protects
It holds between the first spring 146 and pin 600, the first spring 146 and pin 600 are all used to keep the first spring base 452 operationally
Be couple to valve rod 106, and with 106 radial and axial alignment of valve rod.
It is consistent with the above, as the arrangement as a result, when valve rod 106 moves up along longitudinal axis A (such as to the second position
Or the third place) when, pin 600 is on bottom surface 528, more generally, applies upward power on the first spring base 452, drives up
First spring base 452 (and the first spring 146 is made to be pressed on interior shoulder 156).On the contrary, when valve rod 106 along longitudinal axis A to moving down
When dynamic (for example, returning to first position), driven downwards along longitudinal axis A against the spring 146 that top surface 536 is placed in groove 520
First spring base 452 is until bottom 512 re-engages with pin 600.
Figure 11, which is shown, can be used for the first spring base 152 (or first spring base 452) being operably coupled to valve rod 106
Another example of the holding member 154 of (vice versa).Holding member 154 shown in Figure 11 uses the annular of valve rod 106
The form of shoulder 700 so that need not be additional or external holding element, such as ring 348, pin 600.Annular shoulder 700 is from valve
Bar 106 extends outwardly so that valve rod 106 includes that the diameter of the part of annular shoulder 700 is more than valve rod 106 close to annular shoulder
The diameter of 700 part.Annular shoulder 700 is formed in leaning on close end 140 and being located at the first spring base 152 for valve rod 106
At the part of the lower section of bottom 312 (or downstream) so that annular shoulder 700 is arranged in recess portion 316, and is completely recessed the in turn
In one spring base 152.Similar to split ring 348 and pin 600, annular shoulder 700 engages the bottom surface 328 of bottom 312, as schemed institute
Show.Therefore, the bottom 312 of the first spring base 152 is arranged and is maintained between the first spring 146 and annular shoulder 700, the first bullet
Spring 146 and annular shoulder 700 are all used to keep the first spring base 152 to be operably coupled to valve rod 106, and with valve rod 106
Radial and axial alignment.
It is consistent with the above, as the arrangement as a result, when valve rod 106 moves up along longitudinal axis A (such as to the second position
Or the third place) when, shoulder 700 is on bottom surface 328, more generally, applies upward power on the first spring base 152, drives upwards
Dynamic first spring base 152 (and make the first spring 146 be pressed in and extend internally on part 156).On the contrary, when valve rod 106 is along vertical
When axis A moves down (for example, returning to first position), the spring 146 in groove 320 is placed in along longitudinal axis A against top surface 336
The first spring base 152 of driving is until bottom 312 re-engages with shoulder 700 downwards.
It is also understood that (anti-for the first spring base 152 or the first spring base 452 to be operably coupled to valve rod 106
It is as the same) holding member 154 can be different from split ring 348 described and illustrated herein, pin 600 and annular shoulder 700.
In other examples, holding member 154 may be used such as closed-loop (rather than opening, ring 348 for partially opening), spring ring,
The form of rivet, nut or some other holding elements.It is also understood that the first spring base 152 and the first spring base 452 and
Different holding member 154 as described herein can use increment manufacturing technology, conventional manufacturing technique (for example, casting, powder smelting
Gold or mechanical processing), or conventional and increment manufacturing technology combination.First spring base 152 and the first spring base 452 and this paper
The different holding members 154 can by stainless steel, aluminium, various alloys, other one or more metals, plastics (such as
Elastic material), other suitable materials or combinations thereof manufacture.
The spring base 152,452 and holding member 154 of present disclosure provide many benefits.First, bullet of the invention
Spring abutment 152,452 and holding member 154 help to maintain that valve rod 106 is appropriate to be axially and radially aligned, to enhance internal valve 100
Stability.Secondly because spring base 152,452 is operably coupled to valve rod 106 via one in holding member 154,
Without being for example threadedly coupled, it is possible to reduce usually related to such as spring base of spring base 152,452 is installed in internal valve 100
Difficulty, to allow improve efficiency.
The preferred embodiment of the present invention, including best mould for carrying out the present invention known for inventor is described herein
Formula.Although being shown here and illustrating that many examples, those skilled in the art will readily appreciate that, various embodiments it is thin
Section needs not be mutually exclusive.On the contrary, those skilled in the art should can implement one after reading teaching herein
The one or more features of example are combined with the one or more features of remaining embodiment.Implement shown in it is to be further understood that
Example is only exemplary, and is not construed as limiting the scope of the invention.Any and all examples or exemplary provided herein
The use of language (for example, " such as ") is only intended to preferably illustrate each side of one or more exemplary embodiments of the present invention
Face, and do not cause limiting the scope of the present invention.Language in specification is not necessarily to be construed as indicating that any failed call is protected
The element of shield is necessary for implementing the present invention.
Claims (20)
1. a kind of internal valve for being connected to fluid container, the interior valve module include：
Valve body, the valve body has entrance, outlet, and the valve body limits the master between the entrance and the outlet
Flow path；
Poppet, the poppet is couple to the valve body, and the poppet can be beaten in the entrance of the valve body
It is moved between the closed position that the entrance of the open position opened and the valve body is closed；
Discharge valve, the discharge valve include drainage valve body, and the drainage valve body has hole, vent inlet, bleed outlet, and institute
Drainage flow path of the drainage valve body restriction between the vent inlet and the bleed outlet is stated, the discharge valve is by cloth
It is set to opening and closes the vent inlet；
Valve rod, the valve rod are slidably disposed in the valve body and are operably coupled to the discharge valve；
Actuator, the actuator are operably coupled to the valve rod, and the actuator be suitable for by the valve rod from
The first position that the poppet and the discharge valve are all closed is moved to the second position that the discharge valve is opened and described puts
The third place that valve is closed and the poppet is opened is let out,
Wherein, when the valve rod is in the third place, in response to pressure change, the poppet is arranged to towards institute
Closed position movement is stated, and the discharge valve is arranged to open；
Spring base, the spring base are couple to the valve rod via holding member, so that the spring base is movably disposed
In the valve body；And
Spring, the spring are arranged in the main flow path, and are operably coupled to via the spring base described
Valve rod, the spring are configured as biasing the valve rod towards the first position.
2. internal valve according to claim 1, wherein the holding member includes the ring for being couple to the valve rod.
3. internal valve according to claim 2, wherein the ring is placed in the recess portion being formed in the spring base,
To which the spring base is maintained between the spring and the ring.
4. internal valve according to claim 1, wherein the holding member includes the part for extending through the valve rod
Pin.
5. internal valve according to claim 4, wherein the pin is placed in the recess portion being formed in the spring base,
To which the spring base is maintained between the spring and the pin.
6. internal valve according to claim 4, wherein the valve rod can be moved along the longitudinal axis, and wherein, the pin quilt
It is orientated along the axis substantially perpendicular to the longitudinal axis.
7. internal valve according to claim 1, wherein the holding member includes the annular shoulder of the valve rod.
8. internal valve according to claim 1, wherein the spring base includes groove, and the groove is sized to
Suitable for accommodating the spring, the groove is configured as limiting the spring moving horizontally relative to the valve rod.
9. internal valve according to claim 1 further comprises that pilot sleeve, the pilot sleeve are located at the spring base
It is a part of between the valve body.
10. internal valve according to claim 1, wherein the spring base has arrival end and outlet end, the entrance face
To the entrance of the valve body, outlet of the exit end face to the valve body, and wherein, the arrival end of the spring base
It is disposed proximate to the spring, and the holding member is disposed proximate to the outlet end of the spring base.
11. internal valve according to claim 1, wherein the spring base include by outer wall and with the outer wall radially-inwardly
The annular solid that inner wall spaced apart limits, the outer wall are arranged to when the valve rod is in the first position, the second
It sets when being moved between the third place, can movably engage a part for the valve body, and during the inner wall limits
Heart hole, the centre bore are sized to be suitable for accommodating the valve rod.
12. a kind of internal valve for the pressure difference between balanced upstream fluid source and fluid container, the internal valve include：
Valve body, the valve body has entrance, outlet, and the valve body limits the master between the entrance and the outlet
Flow path；
Poppet, the poppet are arranged to open and close the entrance of the valve body；
Discharge valve, the discharge valve include drainage valve body, and the drainage valve body has hole, vent inlet, bleed outlet, and limits
The drainage flow path being positioned between the vent inlet and the bleed outlet, the discharge valve are arranged to beat on and off
Close the vent inlet；
Valve rod, the valve rod are slidably disposed in the valve body and are operably coupled to the discharge valve, the valve
Bar can be moved to the discharge valve opening and the promotion from the first position that the poppet and the discharge valve are all closed
The second position that valve is closed and the third place that the poppet is opened and the discharge valve is closed；And
Spring base, the spring base are couple to the valve rod via holding member, so that the spring base can movably be set
It sets in the valve body, the spring base includes the annular limited by outer wall and the inner wall being spaced radially inwardly from the outer wall
Body, the outer wall are arranged to move between the first position, the second position and the third place when the valve rod
When dynamic, a part for the valve body can be movably engaged, and the inner wall limits centre bore, the size quilt of the centre bore
It is set as being suitable for accommodating the valve rod；And
Spring, the spring are arranged in the main flow path, and are operably coupled to institute via the spring base
Valve rod is stated, the spring is configured as biasing the valve rod towards the first position.
13. internal valve according to claim 12, wherein the holding member include be couple to the ring of the valve rod, and
Wherein, the ring is placed in the recess portion being formed in the spring base, to which the spring base is maintained at the spring
Between the ring.
14. internal valve according to claim 12, wherein the holding member includes the part for extending through the valve rod
Pin, and wherein, the pin is placed in the recess portion being formed in the spring base, to which the spring base to be maintained at
Between the spring and the pin.
15. internal valve according to claim 12, wherein the valve rod can be moved along the longitudinal axis, and wherein, the pin
It is oriented along the axis substantially perpendicular to the longitudinal axis.
16. internal valve according to claim 12, wherein the holding member includes the annular shoulder of the valve rod.
17. internal valve according to claim 12, wherein the spring base include be limited at the outer wall with and it is described interior
Groove between wall, the groove are sized to be suitable for accommodating the spring, and the groove is configured as described in limitation
Spring is moved horizontally relative to the valve rod.
18. internal valve according to claim 12 further comprises that pilot sleeve, the pilot sleeve are disposed in the bullet
Between a part for spring abutment and the valve body.
19. internal valve according to claim 12, wherein the spring base has arrival end and outlet end, the arrival end
The entrance towards the valve body, outlet of the exit end face to the valve body, and wherein, the entrance of the spring base
End is disposed proximate to the spring, and the holding member is disposed proximate to the outlet end of the spring base.
20. a kind of internal valve for the pressure difference between balanced upstream fluid source and fluid container, the internal valve include：
Valve body, the valve body has entrance, outlet, and the valve body limits the master between the entrance and the outlet
Flow path；
Poppet, the poppet are arranged to open and close the entrance of the valve body；
Discharge valve, the discharge valve include drainage valve body, and the drainage valve body has hole, vent inlet, bleed outlet, and institute
Drainage flow path of the drainage valve body restriction between the vent inlet and the bleed outlet is stated, the discharge valve is by cloth
It is set to and opens and closes the vent inlet；
Valve rod, the valve rod are slidably disposed in the valve body and are operably coupled to the discharge valve, the valve
Bar can be moved to the discharge valve from the first position that the poppet and the discharge valve are all closed and open and described carry
The second position that lift valve is closed and the third place that the poppet is opened and the discharge valve is closed；And
Spring base, the spring base are couple to the valve rod via holding member, so that the spring base is movably disposed
In the valve body, the spring base includes the annular limited by outer wall and the inner wall being spaced radially inwardly from the outer wall
Body, the outer wall are arranged as moving between the first position, the second position and the third place when the valve rod
When, a part for the valve body can be movably engaged, the inner wall limits centre bore, and the centre bore is sized to
Suitable for accommodating the valve rod, the spring base further comprises the recess portion being formed in the annular solid, wherein the maintaining part
Part is at least partially disposed in the recess portion；And
Spring, the spring are arranged in the main flow path, and are operably coupled to via the spring base described
Valve rod, the spring are configured as biasing the valve rod towards the first position.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142427.9A CN108571609B (en) | 2017-03-10 | 2017-03-10 | Spring seat for internal valve |
| US15/635,904 US10794505B2 (en) | 2017-03-10 | 2017-06-28 | Spring seat for an internal valve |
| PCT/US2018/018940 WO2018164838A1 (en) | 2017-03-10 | 2018-02-21 | Spring seat for an internal valve |
| CA3055723A CA3055723A1 (en) | 2017-03-10 | 2018-02-21 | Spring seat for an internal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142427.9A CN108571609B (en) | 2017-03-10 | 2017-03-10 | Spring seat for internal valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108571609A true CN108571609A (en) | 2018-09-25 |
| CN108571609B CN108571609B (en) | 2022-12-23 |
Family
ID=63577436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710142427.9A Active CN108571609B (en) | 2017-03-10 | 2017-03-10 | Spring seat for internal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571609B (en) |
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| JPS4873321U (en) * | 1971-12-14 | 1973-09-12 | ||
| US20040046135A1 (en) * | 2002-09-05 | 2004-03-11 | Wieder Horst K. | Flow control valve that may be used for mold temperature control systems |
| US20060266962A1 (en) * | 2005-05-27 | 2006-11-30 | Smc Corporation | Vacuum regulating valve |
| CN102066169A (en) * | 2008-06-19 | 2011-05-18 | 罗伯特·博世有限公司 | Control valve for a vehicle brake system and vehicle brake system comprising such a control valve |
| CN102177378A (en) * | 2008-10-08 | 2011-09-07 | 艾默生过程管理调节技术公司 | Valves having removable internal actuation mechanisms |
| CN102203488A (en) * | 2008-09-02 | 2011-09-28 | 艾默生过程管理调节技术公司 | Fluid flow control members for use with valves |
| CN202188187U (en) * | 2011-05-30 | 2012-04-11 | 杭州三花研究院有限公司 | Thermostatic valve |
| CN207261757U (en) * | 2017-03-10 | 2018-04-20 | 艾默生过程管理调节技术公司 | For being connected to the internal valve of fluid container and internal valve for counterpressure difference |
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2017
- 2017-03-10 CN CN201710142427.9A patent/CN108571609B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4873321U (en) * | 1971-12-14 | 1973-09-12 | ||
| US20040046135A1 (en) * | 2002-09-05 | 2004-03-11 | Wieder Horst K. | Flow control valve that may be used for mold temperature control systems |
| US20060266962A1 (en) * | 2005-05-27 | 2006-11-30 | Smc Corporation | Vacuum regulating valve |
| CN102066169A (en) * | 2008-06-19 | 2011-05-18 | 罗伯特·博世有限公司 | Control valve for a vehicle brake system and vehicle brake system comprising such a control valve |
| CN102203488A (en) * | 2008-09-02 | 2011-09-28 | 艾默生过程管理调节技术公司 | Fluid flow control members for use with valves |
| CN102177378A (en) * | 2008-10-08 | 2011-09-07 | 艾默生过程管理调节技术公司 | Valves having removable internal actuation mechanisms |
| US20130056666A1 (en) * | 2008-10-08 | 2013-03-07 | Chun Lin | Valves having removable internal actuation mechanisms |
| CN202188187U (en) * | 2011-05-30 | 2012-04-11 | 杭州三花研究院有限公司 | Thermostatic valve |
| CN207261757U (en) * | 2017-03-10 | 2018-04-20 | 艾默生过程管理调节技术公司 | For being connected to the internal valve of fluid container and internal valve for counterpressure difference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108571609B (en) | 2022-12-23 |
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