CN104358905B - A kind of flow automatic control device - Google Patents
A kind of flow automatic control device Download PDFInfo
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- CN104358905B CN104358905B CN201410526015.1A CN201410526015A CN104358905B CN 104358905 B CN104358905 B CN 104358905B CN 201410526015 A CN201410526015 A CN 201410526015A CN 104358905 B CN104358905 B CN 104358905B
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- emery wheel
- valve
- hole
- quiet
- check valve
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/36—Features relating to lubrication
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
nullThe invention discloses a kind of flow automatic control device，Include emery wheel regulation valve and magnetoelectric flowmeter，Described magnetoelectric flowmeter includes detection pipeline，Emery wheel regulation valve includes valve body、Valve gap、Valve rod、Emery wheel mechanism and valve rod rotating drive mechanism，Emery wheel mechanism includes the dynamic emery wheel that cooperates and quiet emery wheel，Also include emery wheel lubricating structure，The lower surface of described quiet emery wheel is provided centrally with hole, lubricant center，It is provided with on the upper surface that described quiet emery wheel is relative with dynamic emery wheel and is positioned at the annular oil groove that quiet emery wheel through hole is peripheral，The oil transportation channel of connection annular oil groove and hole, lubricant center it is provided with in this quiet emery wheel，Described valve body is fixedly installed oiling connecting tube relative to the lower section of quiet emery wheel，The inner sealing grafting of this oiling connecting tube is positioned in the hole, lubricant center of quiet emery wheel，It is provided for the oil-in to oiling connecting tube fuel feeding in described oiling connecting tube.It is an advantage of the invention that abrasion between minimizing sound emery wheel, running precision are high, more steadily, service life is long.
Description
Technical field
The present invention relates to a kind of flow automatic control device.
Background technology
Flow automatic control device is flowmeter, regulation valve and executing agency and Based Intelligent Control to be integrated in one, it is possible to
Automatically carrying out flow in the widest range of flow and accurately regulate metering, user can be automatically adjusted according to being actually needed flow value
Remain that the flow of setting is constant, artificial labour intensity is greatly reduced.
Existing flow automatic control device, as shown in China ZL201220020911.7, includes regulation valve, execution machine
Structure and magnetoelectric flowmeter etc., the port of export of the detection pipeline of magnetoelectric flowmeter is connected with the valve body inlet pipeline of regulation valve, institute
Stating regulation valve and include valve body, valve rod, emery wheel, emery wheel includes the dynamic emery wheel that cooperates and quiet emery wheel, on described dynamic emery wheel
Passage turns on the intake channel of valve body, and the passage on quiet emery wheel drives dynamic emery wheel with the exit passageway conducting on valve body, valve rod
Rotate and realize dynamic relatively rotating between emery wheel and quiet emery wheel, thus the through hole realized on dynamic emery wheel exists with the through hole on quiet emery wheel
Switch between completely misplacing and be fully on.
But there is following defect in the emery wheel of this traditional flow automatic control device regulation valve:
In use move and abrasion occurs on the opposite face of emery wheel and quiet emery wheel, not only have impact on the stream of emery wheel regulation valve
Amount degree of regulation, and also result in and decline service life.
Summary of the invention
The invention aims to the shortcoming and defect overcoming prior art to exist, and provide a kind of and regulate valve at emery wheel
On emery wheel lubricating structure is set, thus reduce and wear and tear between sound emery wheel, the flow improving Flow-rate adjustment precision automatically controls dress
Put.
For achieving the above object, the technical scheme is that and include emery wheel regulation valve and magnetoelectric flowmeter, described
Magnetoelectric flowmeter includes detection pipeline, and described emery wheel regulation valve includes valve body, valve gap, valve rod, emery wheel mechanism and valve rod
Rotating drive mechanism, emery wheel mechanism includes the dynamic emery wheel that cooperates and quiet emery wheel, described valve body arranges inlet pipeline, goes out
Center-aisle between mouth pipeline and connection inlet pipeline and outlet conduit, described detection pipeline and inlet pipeline input are even
Connecing setting, described quiet emery wheel is fixedly installed on center-aisle, and described dynamic emery wheel laminating rotates and is arranged at the upper of quiet emery wheel
Just, and described valve rod drives connection to coordinate with dynamic emery wheel, described dynamic emery wheel is provided with a pair centrosymmetric dynamic emery wheel and leads to
Hole, described quiet emery wheel is provided with a pair centrosymmetric quiet emery wheel through hole of cooperation corresponding with moving emery wheel through hole, dynamic mill
The upper end of wheel through hole connects with outlet conduit, and the lower end of dynamic emery wheel through hole connects with inlet pipeline, and valve rod drives dynamic emery wheel to rotate
Realize dynamic relatively rotating between emery wheel and quiet emery wheel, thus realize dynamic emery wheel through hole and misplacing completely and complete with quiet emery wheel through hole
Switch between full conducting, it is characterised in that: also include that emery wheel lubricating structure, the lower surface of described quiet emery wheel are provided centrally with note
Oil centre bore, the upper surface that described quiet emery wheel is relative with dynamic emery wheel is provided with and is positioned at the annular oil that quiet emery wheel through hole is peripheral
Groove, is provided with the oil transportation channel of connection annular oil groove and hole, lubricant center in this quiet emery wheel, described valve body is relative to quiet emery wheel
Lower section be fixedly installed oiling connecting tube, this oiling connecting tube inner seals grafting and is positioned the hole, lubricant center of quiet emery wheel
In, described oiling connecting tube is provided for the oil-in to oiling connecting tube fuel feeding.
By this setting, emery wheel lubricating structure is set, by oiling connecting tube to hole, the lubricant center oiling of quiet emery wheel, makes
Obtain lubricating oil to enter into annular oil groove from hole, lubricant center, oil transportation channel, so that dynamic phase between emery wheel and quiet emery wheel
Opposite is in lubricating status all the time, reduces the abrasion of the two, and lubricating oil moves during emery wheel rotates again and forms oil film simultaneously, carries
High sealing effectiveness between quiet emery wheel and dynamic emery wheel.
Arranging further is to be fixedly installed on described valve body and the oil feed non-return valve to oil-in direction one-way conduction,
The interior end interface of oil feed non-return valve seals fuel feeding with oil-in and couples, and the outer side interface removable seal of this oil feed non-return valve is fixed
It is provided with oil storage cup.By this setting, when annular oil groove inner oil shortage, the pressure reduction of oil feed non-return valve both sides is utilized to increase, fuel feeding
The unidirectional unlatching of check valve, the lubricating oil in oil storage cup can constantly add in annular oil groove, keep dynamic emery wheel and quiet emery wheel it
Between opposite face be in lubricating status all the time.
Further setting is that the cross-sectional profiles line of described quiet emery wheel through hole is spliced successively by multistage arc, and
The quiet emery wheel through hole being somebody's turn to do includes the relatively large quiet emery wheel big flow district of sectional area and the relatively small quiet emery wheel of cross section is little
Flow district, described dynamic emery wheel through hole is identical with described quiet emery wheel shape of through holes and upper and lower minute surface is symmetrical arranged, described quiet emery wheel
Discharge characteristic between through hole and dynamic emery wheel through hole is: have equal percentage flow characteristic during dynamic emery wheel circumferentially rotates.
By this setting, sound emery wheel through hole is arranged to above-mentioned equal percentage flow characteristic, the relative travel of equal percentage characteristics and
Relative discharge does not forms straight line relation, i.e. the change of flow caused by per stroke change and this point on the every bit of stroke
Flow is directly proportional, and the percentage of changes in flow rate is equal, it has an advantage in that be flow hour, changes in flow rate is little, and flow is big
Time, then changes in flow rate is big, namely in different opening, has identical degree of regulation.Therefore, it is achieved at flow hour flow
Change the least, regulation effect relaxes steadily；When flow is big. the change of flow is also big, and regulation effect is sensitive and effective；Namely
Say in different opening, there is identical degree of regulation.
Arrange further is that described valve body is interior close relative to being fixedly installed the valve rod coordinated with valve stem seal outside valve rod
Envelope seat, is provided with annular shoulder, is fixedly installed between described annular shoulder and valve gap at the upper end interior angle of this valve stem seal seat
Having thrust bearing, the inner face of this thrust bearing rotates to couple with valve rod and coordinates.The rotation of the valve rod of traditional emery wheel regulation valve
Supporting is all coordinated by copper bush, and lining is also the vital part of emery wheel regulation valve, affects emery wheel after liner wear
Properly functioning, when there being axial load, especially valve rod be in operation the axial compressive force from liquid medium time,
Bush end face is easier to abrasion, by this setting, changes copper bush into thrust bearing, very well solves above-mentioned this and ask
Topic, meanwhile, running precision is high, and more steadily, service life is long.
Arranging further is to be provided with non-return filtering mechanism between detection pipeline and inlet pipeline, and this non-return filtering mechanism wraps
Include and to the check valve of inlet pipeline one-way conduction and and be arranged at the filtration in liquid feeding end direction of check valve from detection pipeline
Filter core.By this setting, set up check valve, when oil borehole pressure is excessive, prevent liquid medium from regulation valve to magnetoelectric flowmeter
Flowing backwards, improve flow measurement precision, additionally the liquid feeding end direction at check valve arranges filter core, prevents in liquid medium
Impurity enters regulation valve, and protection emery wheel is not damaged by, and improves its service life.
The check valve being described is set further and includes check valve body, nonreturn valve core, valve core reseting spring and check valve
Base, is provided with check valve runner and is arranged at the one-way valve seat of check valve tunnel inlets side, institute in described check valve body
The check valve base stated is fixedly installed on the check valve runner exit side of check valve body, this check valve base is provided with single
The base runner communicated to valve runner, described check valve base is provided centrally with sliding cylinder, the outer end of described nonreturn valve core
Sliding is arranged in sliding cylinder, and the inner composition of this nonreturn valve core seals the one-way sealing pair coordinated with one-way valve seat, described
Valve core reseting spring be arranged in sliding cylinder, the two ends of this valve core reseting spring are made with nonreturn valve core and check valve base respectively
With abutting.
Arrange the check valve base being described further to be fixed in check valve body by trip bolt.
Arranging further is the multiple relative to being provided with on the outer wall of the outlet side of one-way valve seat of described check valve body
Flow through hole.
Arrange further be described filter core be taper filter core, the bottom of this taper filter core is fixedly installed on check valve
Outside the entrance point of body, and multiple contaminant filter hole is set on this taper filter core.
Below in conjunction with specification drawings and specific embodiments, the present invention is described further.
Summary of the invention
Accompanying drawing explanation
Fig. 1 embodiment of the present invention 1 structural representation；
Fig. 2 emery wheel of the present invention regulating valve structure schematic diagram；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 present invention quiet wheel structure schematic diagram；
Fig. 5 is the B-B sectional view of Fig. 4；
Fig. 6 is that the B of Fig. 5 is to schematic diagram；
Fig. 7 is the profile enlarged drawing of quiet emery wheel through hole；
Fig. 8 embodiment of the present invention 1 non-return filtering mechanism structure schematic diagram；
Fig. 9 is the embodiment of the present invention 2 structural representation.
Detailed description of the invention
Below by embodiment, the present invention is specifically described, is served only for the present invention being further described, no
It is understood that for limiting the scope of the present invention, the technician in this field can be according to the content of foregoing invention to the present invention
Make some nonessential improvement and adjustment.
Embodiment 1
The embodiment of the present invention 1 as shown in figs. 1-7, includes emery wheel regulation valve 1 and magnetoelectric flowmeter 2, described magnetoelectricity
Flowmeter 2 includes detection pipeline 21, and described emery wheel regulation valve 1 includes valve body 11, valve gap 14, valve rod 15, emery wheel mechanism
With valve rod rotating drive mechanism 17, this valve rod rotating drive mechanism 17 generally YE of the present embodiment coordinates transmission device
Assembly 171 carries out transmission, and it is the conventional setting of this area, and the present embodiment is no longer described in detail, the present embodiment emery wheel mechanism bag
Include the dynamic emery wheel 12 and quiet emery wheel 13 cooperated, described valve body 11 is arranged inlet pipeline 111, outlet conduit 112 and
Connect the center-aisle 113 between inlet pipeline and outlet conduit, described detection pipeline 21 and inlet pipeline 111 input to connect
Arranging, described quiet emery wheel 13 is fixedly installed on center-aisle 113, and the rotation of fitting of described dynamic emery wheel 12 is arranged at quiet emery wheel
The top of 13, and described valve rod 15 and dynamic emery wheel 12 drive to couple and coordinate, and described dynamic emery wheel 12 is provided with a pair center pair
The dynamic emery wheel through hole claimed, a pair that described quiet emery wheel 13 is provided with cooperation corresponding with moving emery wheel through hole centrosymmetric quiet
Emery wheel through hole 131, the cross-sectional profiles line of described quiet emery wheel through hole 131 is spliced successively by multistage arc, and be somebody's turn to do
Quiet emery wheel through hole 131 includes the relatively large quiet emery wheel big flow district 1311 of sectional area and the relatively small quiet emery wheel of cross section
Low discharge district 1312, described dynamic emery wheel through hole is identical with described quiet emery wheel through hole 131 shape and upper and lower minute surface is symmetrical arranged, should
Minute surface is symmetrical arranged and refers to upper and lower minute surface both when dynamic emery wheel 12 forwards the maximum stream flow relation coordinated with quiet emery wheel 13 to up and down
Symmetrical.As it is shown in fig. 7, this quiet emery wheel through hole be shaped like droplet profile under gravity state.It addition, described quiet emery wheel through hole
Discharge characteristic between 131 and dynamic emery wheel through hole is: have equal percentage flow characteristic during dynamic emery wheel 12 circumferentially rotates.
Additionally, the lower surface of the quiet emery wheel 13 described in the present embodiment 1 is provided centrally with hole, lubricant center 132, described is quiet
It is provided with on the upper surface that emery wheel 13 is relative with dynamic emery wheel 12 and is positioned at the annular oil groove 133 that quiet emery wheel 13 through hole is peripheral, this quiet mill
The oil transportation channel 134 of connection annular oil groove 133 and hole, lubricant center 132 it is provided with in wheel 12.Annular oil described in the present embodiment
The longitudinal section of groove 133 is semicircle.
The present embodiment 1 moves the upper end of emery wheel through hole 121 and connects with outlet conduit 112, the lower end of quiet emery wheel through hole 131 with enter
Mouth pipeline 111 connects, and valve rod 15 drives dynamic emery wheel 12 to rotate and realizes moving relatively rotating between emery wheel 12 and quiet emery wheel 13, thus
Realize dynamic emery wheel through hole 121 and quiet emery wheel through hole 131 to switch between completely misplacing and be fully on.
Valve body 11 described in the present embodiment 1 is fixedly installed oiling connecting tube 181 relative to the lower section of quiet emery wheel, this oiling
The inner sealing grafting of connecting tube 181 is positioned in the hole, lubricant center 132 of quiet emery wheel, and described oiling connecting tube 181 sets
Put be fixedly installed on the oil-in 182 to oiling connecting tube fuel feeding, described valve body 11 unidirectional with to oil-in direction
The oil feed non-return valve 183 of conducting, the interior end interface of oil feed non-return valve 183 seals fuel feeding with oil-in 182 and couples, and this fuel feeding is unidirectional
The outer side interface removable seal of valve 183 is fixedly installed oil storage cup 184.
It addition, coordinate with valve stem seal relative to being fixedly installed outside valve rod 15 in valve body 11 described in the present embodiment 1
Valve stem seal seat 191, is provided with annular shoulder 192, described annular shoulder 192 at the upper end interior angle of this valve stem seal seat 191
And being fixedly installed thrust bearing 193 between valve gap 14, the inner face of this thrust bearing 193 rotates to couple with valve rod 15 and coordinates.
It addition, detection pipeline 21 and inlet pipeline 111 described in the present embodiment 1 are sealed in succession by clamp connection part 41
Connecing, this detection pipeline 21 of certain present invention and inlet pipeline 111 can dock connection to use other modes such as Flange joint.
It addition, be provided with non-return filtering mechanism 3 between the present embodiment detection pipeline 21 and inlet pipeline 111, this non-return mistake
Filter structure 3 includes from detecting the pipeline 21 check valve 31 to inlet pipeline one-way conduction and and being arranged at entering of check valve 31
The filter core 32 of liquid extreme direction, the filter core 32 described in the present embodiment is taper filter core, and the bottom of this taper filter core is fixed
It is arranged at outside the entrance point of check valve body 311, and multiple contaminant filter hole 321 is set on this taper filter core.
The check valve that check valve 31 of the present invention can take various forms, this check valve 31 of the present embodiment includes check valve
Body 311, nonreturn valve core 312, valve core reseting spring 313 and check valve base 314, be provided with list in described check valve body 311
To valve runner 315 and the one-way valve seat 316 being arranged at check valve runner 315 import side, described check valve base 314 is fixed
The check valve runner 315 being arranged at check valve body 311 exports side, and this check valve base 314 is provided with and check valve runner
The base runner 3141 that 315 communicate, described check valve base 314 is provided centrally with sliding cylinder 3142, described nonreturn valve core
The outer end sliding of 312 is arranged in sliding cylinder 3142, and the inner composition of this nonreturn valve core 312 seals with one-way valve seat 316 and joins
The one-way sealing pair 3121 closed, described valve core reseting spring 313 is arranged in sliding cylinder 3142, this valve core reseting spring 313
Two ends act on nonreturn valve core 312 and check valve base 316 respectively and abutting.
Check valve base 314 described in the present embodiment is fixed in check valve body 311 by trip bolt 317, it addition, institute
The check valve body 311 stated relative to being provided with multiple flow through hole 3111 on the outer wall of the outlet side of one-way valve seat 316.
Embodiment 2
As it is shown in figure 9, the difference of the present embodiment 2 and embodiment 1 is, the present embodiment 2 is not at detection pipeline 21
And above-mentioned non-return filtering mechanism is set between inlet pipeline 111.
Claims (9)
1. a flow automatic control device, includes emery wheel regulation valve and magnetoelectric flowmeter, and described magnetoelectric flowmeter includes
Detection pipeline, described emery wheel regulation valve is had to include valve body, valve gap, valve rod, emery wheel mechanism and valve rod rotating drive mechanism, mill
Wheel mechanism includes the dynamic emery wheel that cooperates and quiet emery wheel, and described valve body arranges inlet pipeline, outlet conduit and connection
Center-aisle between inlet pipeline and outlet conduit, described detection pipeline and inlet pipeline input connect setting, described
Quiet emery wheel is fixedly installed on center-aisle, and described dynamic emery wheel laminating rotates the top being arranged at quiet emery wheel, and described valve rod
Drive to couple with dynamic emery wheel and coordinate, described dynamic emery wheel is provided with a pair centrosymmetric dynamic emery wheel through hole, described quiet mill
Be provided with a pair centrosymmetric quiet emery wheel through hole of cooperation corresponding with moving emery wheel through hole on wheel, the upper end of dynamic emery wheel through hole with
Outlet conduit connects, and the lower end of dynamic emery wheel through hole connects with inlet pipeline, and valve rod drives dynamic emery wheel to rotate and realizes dynamic emery wheel with quiet
Relatively rotating between emery wheel, thus realize dynamic emery wheel through hole and quiet emery wheel through hole and cut between completely misplacing and be fully on
Change, it is characterised in that: also include that emery wheel lubricating structure, the lower surface of described quiet emery wheel are provided centrally with hole, lubricant center, institute
It is provided with on the upper surface that the quiet emery wheel stated is relative with dynamic emery wheel and is positioned at the annular oil groove that quiet emery wheel through hole is peripheral, in this quiet emery wheel
Being provided with the oil transportation channel of connection annular oil groove and hole, lubricant center, described valve body is fixedly installed relative to the lower section of quiet emery wheel
Having oiling connecting tube, the inner sealing grafting of this oiling connecting tube is positioned in the hole, lubricant center of quiet emery wheel, described oiling
The oil-in to oiling connecting tube fuel feeding it is provided in connecting tube.
A kind of flow automatic control device the most according to claim 1, it is characterised in that: it is fixedly installed on described valve body
Having and the oil feed non-return valve to oil-in direction one-way conduction, the interior end interface of oil feed non-return valve and oil-in seal fuel feeding connection
Connecing, the outer side interface removable seal of this oil feed non-return valve is fixedly installed oil storage cup.
A kind of flow automatic control device the most according to claim 1, it is characterised in that: the horizontal stroke of described quiet emery wheel through hole
Cross section contour is spliced successively by multistage arc, and this quiet emery wheel through hole includes the quiet emery wheel that sectional area is relatively large
Big flow district and the relatively small quiet emery wheel low discharge district of cross section, described dynamic emery wheel through hole and described quiet emery wheel shape of through holes
Identical and upper and lower minute surface is symmetrical arranged, and the discharge characteristic between described quiet emery wheel through hole and dynamic emery wheel through hole is: in dynamic emery wheel week
There is in rotation process equal percentage flow characteristic.
A kind of flow automatic control device the most according to claim 1, it is characterised in that: relative to valve rod in described valve body
Outside is fixedly installed the valve stem seal seat coordinated with valve stem seal, is provided with annular table at the upper end interior angle of this valve stem seal seat
Shoulder, is fixedly installed thrust bearing between described annular shoulder and valve gap, and the inner face of this thrust bearing rotates connection with valve rod
Connect cooperation.
A kind of flow automatic control device the most according to claim 1, it is characterised in that: detection pipeline and inlet pipeline it
Between be provided with non-return filtering mechanism, this non-return filtering mechanism include from detection the pipeline check valve to inlet pipeline one-way conduction
With and be arranged at the filter core in liquid feeding end direction of check valve.
A kind of flow automatic control device the most according to claim 5, it is characterised in that: described check valve includes list
To valve body, nonreturn valve core, valve core reseting spring and check valve base, it is provided with check valve runner in described check valve body and sets
Being placed in the one-way valve seat of check valve tunnel inlets side, described check valve base is fixedly installed on the check valve stream of check valve body
Outlet side, road, this check valve base is provided with the base runner communicated with check valve runner, in described check valve base
The heart is provided with sliding cylinder, and the outer end sliding of described nonreturn valve core is arranged in sliding cylinder, and the inner composition of this nonreturn valve core
Sealing the one-way sealing coordinated with one-way valve seat secondary, described valve core reseting spring is arranged in sliding cylinder, this valve core reset bullet
The two ends of spring abut with nonreturn valve core and check valve base effect respectively.
A kind of flow automatic control device the most according to claim 6, it is characterised in that: described check valve base passes through
Trip bolt is fixed in check valve body.
A kind of flow automatic control device the most according to claim 6, it is characterised in that: described check valve body relative
Multiple flow through hole it is provided with on the outer wall of the outlet side of one-way valve seat.
A kind of flow automatic control device the most according to claim 5, it is characterised in that: described filter core is taper
Filter core, the bottom of this taper filter core is fixedly installed on outside the entrance point of check valve body, and arranges multiple miscellaneous on this taper filter core
Matter filter bores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410526015.1A CN104358905B (en) | 2014-10-08 | 2014-10-08 | A kind of flow automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410526015.1A CN104358905B (en) | 2014-10-08 | 2014-10-08 | A kind of flow automatic control device |
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| CN104358905A CN104358905A (en) | 2015-02-18 |
| CN104358905B true CN104358905B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104847913B (en) * | 2015-04-03 | 2017-06-13 | 浙江精华测控设备有限公司 | A kind of grinding-wheel type regulating valve |
| CN110081955B (en) * | 2019-04-29 | 2020-09-25 | 新乡航空工业(集团)有限公司 | Method for detecting variable viscosity lubricating oil micro-flowmeter |
| CN115014449A (en) * | 2022-08-09 | 2022-09-06 | 四川华能氢能科技有限公司 | Hydrogen flow detection sensor device |
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| US3215157A (en) * | 1963-01-30 | 1965-11-02 | Acf Ind Inc | Valve seat structure having pressureactuated seal means |
| CN1160820A (en) * | 1996-03-06 | 1997-10-01 | 株式会社丰田自动织机制作所 | Reciprocating piston variable displacement type compressor improved to distribute lubricating oil sufficiently |
| CN1140688A (en) * | 1996-05-15 | 1997-01-22 | 朗艾道(天津)有限公司 | Continuous lubricating system for roll of belt conveyer |
| DE29718505U1 (en) * | 1997-10-17 | 1999-02-11 | Rekofa Wenzel GmbH & Co KG, 53474 Bad Neuenahr-Ahrweiler | Distribution device for liquid and / or gaseous fluids |
| CN2591088Y (en) * | 2002-11-26 | 2003-12-10 | 中国路桥(集团)新津筑路机械厂 | Bridge bearing LOng-acting lubricating friction pairs |
| CN202418776U (en) * | 2012-01-17 | 2012-09-05 | 浙江天信仪表科技有限公司 | Automatic flow control device |
| CN102794416A (en) * | 2012-07-19 | 2012-11-28 | 苏州有色金属研究院有限公司 | Aluminum alloy hollow ingot semi-continuous casting crystallizer and application thereof |
| CN202725998U (en) * | 2012-07-19 | 2013-02-13 | 苏州有色金属研究院有限公司 | Semi-continuous casting mold for aluminum alloy hollow ingot |
| CN203297722U (en) * | 2013-06-04 | 2013-11-20 | 浙江天信仪表科技有限公司 | Actuator of automatic flow control device |
| CN204176065U (en) * | 2014-10-08 | 2015-02-25 | 浙江天信仪表科技有限公司 | A kind of flow automatic control device |
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