CN206290789U - A kind of automatic core assembly and pressure difference independent type flow control valve - Google Patents
A kind of automatic core assembly and pressure difference independent type flow control valve Download PDFInfo
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- CN206290789U CN206290789U CN201621165752.4U CN201621165752U CN206290789U CN 206290789 U CN206290789 U CN 206290789U CN 201621165752 U CN201621165752 U CN 201621165752U CN 206290789 U CN206290789 U CN 206290789U
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Abstract
The utility model is related to a kind of automatic core assembly and pressure difference independent type flow control valve, belongs to balanced valve technical field.Including pressure-sensitive diaphragm, compression plate, adjusting spool and valve core housing, described valve core housing is many boss tube-in-tube structures of cylinder, water-guiding hole is provided with its upper surface, adjusting spool is cylindrical sleeves structure with the level, its upper surface sets thin-walled cutting edge, lower end sets groove, and the interstitial hole boss of the groove and pressure-sensitive diaphragm coordinates, and extends through the compression plate below interstitial hole to the pressure-sensitive diaphragm of pressure-sensitive diaphragm；Valve core housing is sleeved on adjusting spool outer wall.Utility model is applied to fluid media (medium) pipeline control system, be there is degree of regulation high, small volume, flow is not influenceed and ensured that regulation can be realized independently with closing function.
Description
Technical field
The utility model is related to a kind of automatic core assembly and pressure difference independent type flow control valve, belongs to balance valve technology neck
Domain.
Background technology
In fluid media (medium) pipeline control system, when the pressure oscillation in pipe-line system, to keep rate of discharge stabilization, lead to
Flow control valve can be often used, in known product, patent No. ZL201110033130.1 discloses a kind of operting differential pressure model
Fixed flow control valve is enclosed, the size of its operting differential pressure is determined by fixing nonadjustable spring；Patent ZL
201020285505 disclose a kind of variable differential pressure flow control valve for changing operting differential pressure by screw rod regulation spring.So
And these product generally existing problems with：
（1）Pilot port is at valve outlet end after above-described flow control valve valve, and is a pressure guide hole, when before product
Afterwards during pressure-difference fluctuation, not substantially, response speed is slow for downstream pressure transmission, influences degree of regulation.
（2）Above-described flow rate control valve structure complexity, manufacture processing difficulties, and fluid flow through resistance during valve body
It is larger；So as to increased the resistance of whole pipe-line system.
（3）Using low in and high out, or high in and low out structure above-described flow control valve more, the volume of product compared with
Greatly, structure is not compact.
（4）Above-described flow control valve does not possess filtering function, needs to configure single filter when in use.
（5）Above-described flow control valve manual modulation valve core only possesses regulatory function, does not possess turn-off function.
Based on this, the application is made.
Utility model content
For the drawbacks described above existing for existing control valve, the application provides a kind of degree of regulation high, small volume, no first
Influence flow, automatic core assembly easy to assembly.
To achieve the above object, the technical scheme that the application takes is as follows：
Automatic core assembly, including pressure-sensitive diaphragm, compression plate, adjusting spool and valve core housing, described valve core housing are cylinder
Many boss tube-in-tube structures, water-guiding hole is provided with its upper surface, and the water-guiding hole leads directly to the stepped hole of its lower surface, the stepped hole with
Valve core housing middle part sets rectangular channel and communicates, it is ensured that upstream medium passes through；Adjusting spool is cylindrical sleeves structure with the level, thereon
End face sets thin-walled cutting edge, and to adjust flow, center sets through hole through setting step circular hole in the step circular hole,
To transmit pressure, lower end sets groove, and the groove coordinates with the interstitial hole boss of pressure-sensitive diaphragm, and extends through pressure-sensitive diaphragm
Compression plate below interstitial hole to pressure-sensitive diaphragm, compression plate lower end closed；Valve core housing is sleeved on adjusting spool outer wall.
Further, as preferred：
Described adjusting spool middle part sets annular groove, and valve core housing is sleeved in adjusting spool by the annular groove, with reality
Existing adjusting spool is connected with the slide-and-guide of valve core housing.
Spring is provided between described valve core housing and adjusting spool, plays a part of balance.
Pressure transmission groove is set on described compression plate upper surface, plays a part of pressure transmission.
Described rectangular channel top is provided with screen pack, plays a part of to filter and purifies, it is to avoid impurity enters, and extends valve
The service life of core retainer plate and adjusting spool.
Meanwhile, present invention also provides one kind is using above-mentioned automatic core assembly and realizes adjusting and closing two kinds of independent work(
Can pressure difference independent type flow control valve, including automatic core assembly, bottom flange, valve body, linear flap, valve rod, bonnet, and
Supporting plate, described automatic core assembly includes pressure-sensitive diaphragm, compression plate, adjusting spool and valve core housing, and valve core housing is that cylinder is more
Boss tube-in-tube structure, water-guiding hole is provided with its upper surface, and the water-guiding hole leads directly to the stepped hole of its lower surface, the stepped hole and valve
Core retainer plate middle part sets rectangular channel and communicates, it is ensured that upstream medium passes through；Adjusting spool is cylindrical sleeves structure with the level, its upper end
Face sets thin-walled cutting edge, and thin-walled cutting edge is extended downwardly and sets step circular hole through adjusting spool, and is set in the step circular hole
Through hole is put, lower end is compressed through pressure-sensitive diaphragm to compression plate, compression plate lower end closed by bottom flange；Valve element set upper side and valve
Body is connected, and remaining part is then sleeved on adjusting spool outer wall；Bonnet, upper end surface is provided with valve rod, and middle part is connected with electronic
Actuator, is moved up and down with band ovable valve stem, and bonnet, bottom coordinates with valve body installs；Valve rod lower end is provided with supporting plate, the branch
Fagging is located at adjusting spool top, and linear flap coordinates with supporting plate to be installed.
Further, as preferred：
Spring one is provided between described valve core housing and adjusting spool, during media flow, balanced valve core retainer plate with
Adjusting spool.
Described valve core housing outer wall sets annular groove, and valve core housing is coordinated by the annular groove with valve body to be installed.
There is cylinder step described valve rod lower end, on cylinder step be equipped with supporting plate, with supporting plate match be linear valve
Valve.
Described linear flap is frustum cone structure, and it, to be threadedly coupled, can not only realize linear regulation but also energy between valve rod
Realize closing function.
Described valve rod middle part is provided with cylinder step, and spring two is set on valve rod by the cylinder step, in valve rod
The cylinder step that portion is set plays a part of holddown spring two, it is furthermore preferred that described spring two is located in stop sleeve, branch
Support set cylinder has a through hole to be engaged with valve rod, stop sleeve is sleeved on valve rod, and its lower end is pressed on pad, and upper end is locking
Screw, lock screw is also a cylindrical sleeves with the level, and locking nut lower end outside is provided with and bonnet, upper end internal thread phase
The screw thread of cooperation, lower end endoporus is cylindrical with stop sleeve to be engaged, equipped with O-shaped between lock screw and stop sleeve upper surface
Circle, is sealed, and lock screw upper end is wrenched for hexahedron serves, and centre also has a through hole to be engaged with valve rod, is locked
Be pressed on the step surface of bonnet, interstitial hole for pad, stop sleeve by screw.
First purpose of the present utility model is the automatic core assembly of change and valve core structure, and pressure guide hole is arranged on into tune
After section valve element, the pressure loss is small, and uses four pressure guide holes, and when pressure-difference fluctuation before and after product, downstream pressure transmission is fast, rings
Answer speed slow, regulation control accuracy is high.
Second purpose of the present utility model is that pressure-sensitive diaphragm is connected as a single entity with adjusting spool, and adjusting spool uses thin-walled sword
Mouth structure, compact conformation, small volume, noise during throttling is small, vibrates and collide small, and regulation is sensitive to make whole product structure tight
Gather, volume-diminished, but negotiability is unaffected.
3rd purpose of the present utility model increases screen pack by valve element stock, plays filtering function, and filtering is thin
Small impurities, protection valve element automatically adjusts component.Abrasion is reduced, making the service life of product strengthens,
4th purpose of the present utility model passes through using the linear adjustment structure of flow and motor switch valve element combining structure,
Not only linear regulation effect can have been completed but also closing function can have been completed, regulation can independently have been realized with closing function, has been independent of each other, and knot
Structure is compact.
Therefore, the application has the beneficial effect that：
1）The automatic core assembly and valve core structure of this product, pressure guide hole is arranged on after adjusting spool, and pressure is damaged
Mistake is small, and uses four pressure guide holes, compared with the adjustment structure of other flow control valves, before and after product during pressure-difference fluctuation, after valve
Pressure transmission is fast, and response speed is slow, and regulation control accuracy is high.
2）The pressure-sensitive diaphragm of this product is connected as a single entity with adjusting spool, and adjusting spool uses thin-walled cutting edge structure, and structure is tight
Gather, small volume, noise during throttling is small, vibrate and collide small, adjust it is sensitive make whole product with compact structure, volume-diminished, but
It is unaffected negotiability.
3）This product increases screen pack by valve element stock, plays filtering function, filters fine impurities, protects valve element
Automatically adjust component.Abrasion is reduced, making the service life of product strengthens.
4）The automatic core assembly structure of this product becomes simple, and volume becomes smaller；Manufacture, assembling are simple, low cost；
Install easy.
5）This product is by using flow adjusting structure and motor switch valve element combining structure, can both complete linear regulation
Effect can complete closing function again, and regulation can independently be realized with closing function, is independent of each other, and compact conformation.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the application；
Fig. 2 is the structural representation of automatic core assembly in the application；
Fig. 3 is the integrative-structure figure of pressure-sensitive diaphragm and adjusting spool in the application；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the top view of valve core housing in the application；
Fig. 6 is D-D directional profile figures in Fig. 5；
Fig. 7 is the combination assumption diagram of the linear adjustment structure of flow and motor switch valve element in the application；
Fig. 8 is medium internal flow directional diagram in the application.
Wherein label：1. screen pack；2. pressure-sensitive diaphragm；3. bottom flange；4. compression plate；5. nut；6. packing ring；7.
Adjusting spool；7a. thin-walled cutting edges；7b. step circular holes；7c. through holes；7d. grooves；8. O-ring seal one；9. spring
One；10. valve core housing；10a. annular grooves；10b. water-guiding holes；11. blanking covers；12. rectangular seals；13. valve bodies；14.O types
Sealing ring two；15. O-ring seals three；16. linear flaps；17. valve rods；18. O-ring seals four；19. locking nuts；
20. stop sleevees；21. springs two；22. mouth sealing rings；23. pads；24.O types sealing ring five；25. bonnet,s；26.
Supporting plate.
Specific embodiment
A kind of pressure difference independent type flow control valve of the present embodiment, with reference to Fig. 1, including automatic core assembly, bottom flange 3, valve
Body 13, linear flap 16, valve rod 17, bonnet, 25 and supporting plate 26, with reference to Fig. 2, Fig. 3 and Fig. 4, automatic core assembly includes sense
Pressuring film plate 2, compression plate 4, adjusting spool 7 and valve core housing 10, with reference to Fig. 5 and Fig. 6, valve core housing 10 is many boss sleeve knots of cylinder
Structure, is provided with water-guiding hole 10b on its upper surface, water-guiding hole 10b leads directly to the stepped hole of its lower surface, the stepped hole and valve core housing
10 middle parts set rectangular channel and communicate, it is ensured that upstream medium passes through；Adjusting spool 7 is cylindrical sleeves structure with the level, its upper end
Face sets thin-walled cutting edge 7a, and thin-walled cutting edge 7a is extended downwardly and set step circular hole 7b through adjusting spool 7, and in the step circles
Through hole 7c is set in the 7b of hole, the lower end of adjusting spool 7 through pressure-sensitive diaphragm 2 to compression plate 4, the lower end closed of compression plate 4, and by lower valve
Lid 3 is compressed；The upper end of valve core housing 10 is connected with valve body 13, and remaining part is then sleeved on the outer wall of adjusting spool 7；The upper end of bonnet, 25
Valve rod 17 is installed, middle part is connected with YE at face, is moved up and down with band ovable valve stem 17, the bottom of bonnet, 25 and valve body
13 coordinate installation；The lower end of valve rod 17 is provided with supporting plate 26, and the supporting plate 26 is located at the top of adjusting spool 7, linear flap 16 with
Supporting plate 26 coordinates to be installed.
Wherein, spring 1 is provided between valve core housing 10 and adjusting spool 7, during media flow, balanced valve core retainer plate
10 with adjusting spool 7；The outer wall of valve core housing 10 sets annular groove 10a, and valve core housing 10 coordinates peace by annular groove 10a with valve body 13
Dress；With reference to Fig. 7, there is cylinder step the lower end of valve rod 17, on cylinder step be equipped with supporting plate 26, with supporting plate 26 match be line
Property flap 16, linear flap 16 is frustum cone structure, its between valve rod 17 be threadedly coupled, the energy reality that can not only realize linear regulation again
Existing closing function；The middle part of valve rod 17 is provided with cylinder step, and spring 2 21 is set on valve rod 17 by the cylinder step, valve rod
The cylinder step that 17 middle parts are set plays a part of holddown spring 2 21, and spring 2 21 is located in stop sleeve 20, stop sleeve
20 have a through hole to be engaged with valve rod 17, stop sleeve 20 is sleeved on valve rod 17, and its lower end is pressed on pad 23, and upper end is
Lock screw 19, lock screw 19 is also a cylindrical sleeves with the level, and the lower end outside of locking nut 19 is provided with and bonnet, 25
The screw thread that upper end internal thread is engaged, lower end endoporus is cylindrical with stop sleeve 20 to be engaged, lock screw 19 and stop sleeve 20
O-ring 4 18 is housed between upper surface, is sealed, the upper end of lock screw 19 is wrenched for hexahedron serves, centre also has
One through hole is engaged with valve rod 17, and pad 23, stop sleeve 20 are pressed on lock screw 19 step of the interstitial hole of bonnet, 25
On face.
（1）Automatic core assembly structure：
Adjusting spool 7 is a cylindrical sleeves with the level, and excircle of sleeve and the interstitial hole of valve core housing 10 are with closing slide-and-guide
There is a female cone thin-walled cutting edge 7a effect, sleeve upper surface, plays a part of to adjust flow, and there are a step circular hole 7b, step in centre
There is a through hole 7c in the middle of circular hole 7b, play a part of to transmit pressure, there is an annular groove at the cylindrical middle part of adjusting spool 7, in annular groove
Between coordinate equipped with O-ring seal 1 and the interstitial hole of valve core housing 10 and seal, the lower end of adjusting spool 7 is a boss, boss root
Portion has a groove 7d to coordinate with the boss of the interstitial hole of pressure-sensitive diaphragm 2, and pressure-sensitive diaphragm 2 is disk-shaped structure, and there is a through hole centre and adjusts
Being engaged for the lower end external cylindrical surface of valve element 7 is saved, what is be engaged with the lower surface of pressure-sensitive diaphragm 2 is compression plate 4, and compression plate 4 is cylinder
Tube-in-tube structure, bottom closing, centre also has a through hole to coordinate with the lower end external cylindrical surface of adjusting spool 7, and centre is equipped with packing ring 6 and spiral shell
Female 5, used nut 6 links together pressure-sensitive diaphragm 2 with compression plate 4, adjusting spool 7, and four are provided with the upper end-face edge of compression plate 4
Bar rectangular channel, for transmitting pressure, pressure-sensitive diaphragm 2 is cylindrical to have a boss cylindrical only with the interstitial hole of valve body 13, the lower end of valve core housing 10
Mouthful coordinate, compressed by the screw thread of bottom flange 3 and sealed, the top of such pressure-sensitive diaphragm 2 be just divided into P2 as shown in Figure 8 with
Two pressure areas of P3.Valve core housing 10 is many boss tube-in-tube structures of a cylinder, and there is annular groove 10a upper end on cylindrical side, equipped with O-shaped
Enclose 2 14 and close sealing dress use with the matching of valve body 13, there are four interior cylinder water-guiding hole 10b on end face, lead directly to the lower end of valve core housing 10
Inner conical surface stepped hole, is equipped with adjusting spool 7 in the middle of valve core housing 10, there is an annular groove at the cylindrical middle part of adjusting spool 7, in the middle of annular groove
Equipped with O-ring seal 8, seal, spring is also equipped between cylinder table terrace and adjusting spool 7 in the centre of valve core housing 10
One 9, balanced action is played, the middle part of valve core housing 10 is provided with interior cylinder table rank hole in the middle of rectangular channel and valve core housing 10 and communicates, and makes upstream
Medium can pass through, four reinforcing rib structures of quad type of rectangular channel, and positioning boss, convex are provided with relative reinforcement
Platform bottom is a cylindrical structure, and top is a frustum cone structure, the rectangular opening of screen pack 1 and positioning round table with closing fixation,
Prevent the play under a stream of water of screen pack 1.
（2）Pressure-sensitive diaphragm 2 and the integrative-structure of adjusting spool 7.
Adjusting spool 7 is a cylindrical sleeves with the level, and excircle of sleeve and the interstitial hole of valve core housing 10 are with closing slide-and-guide
There is a female cone thin-walled cutting edge 7a effect, sleeve upper surface, plays a part of to adjust flow, and there are a step circular hole 7b, step in centre
There is a through hole 7c in the middle of circular hole 7b, play a part of to transmit pressure, there is an annular groove at the cylindrical middle part of adjusting spool 7, in annular groove
Between coordinate equipped with O-ring seal 1 and the interstitial hole of valve core housing 10 and seal, the lower end of adjusting spool 7 is a boss, boss root
Portion has a groove 7d to coordinate with the boss of the interstitial hole of pressure-sensitive diaphragm 2, and pressure-sensitive diaphragm 2 is disk-shaped structure, and there is a through hole centre and adjusts
Being engaged for the lower end external cylindrical surface of valve element 7 is saved, what is be engaged with the lower surface of pressure-sensitive diaphragm 2 is compression plate 4, and compression plate 4 is cylinder
Tube-in-tube structure, bottom closing, centre also has a through hole to coordinate with the lower end external cylindrical surface of adjusting spool 7, and centre is equipped with packing ring 6 and spiral shell
Female 5, used nut 6 links together pressure-sensitive diaphragm 2 with compression plate 4, adjusting spool 7, and 4 are provided with the upper end-face edge of compression plate 4
Bar rectangular channel, for transmitting pressure, pressure-sensitive diaphragm 2 is cylindrical to have a boss cylindrical only with the interstitial hole of valve body 13, the lower end of valve core housing 10
Mouth coordinates, and is compressed by the screw thread of bonnet 3 and sealed, and the top of such pressure-sensitive diaphragm 2 is just divided into P2 and two pressure areas of P3.
（3）Valve core housing：
Valve core housing 10 is many boss tube-in-tube structures of a cylinder, and there is annular groove 10a upper end on cylindrical side, equipped with O-ring two
14 match with valve body 13 closes sealing dress use, there is 4 interior cylinder water-guiding hole 10b on end face, leads directly to the inner cone of the lower end of valve core housing 10
Adjusting spool 7 is housed, the cylindrical middle part of adjusting spool 7 has in the middle of an annular groove, annular groove equipped with O in the middle of face stepped hole, valve core housing
Type sealing ring 1, is sealed, and spring one is also equipped between cylinder table terrace and adjusting spool 7 in the centre of valve core housing 10
9, balanced action is played, the middle part of valve core housing 10 is provided with interior cylinder table rank hole in the middle of rectangular channel and valve core housing and communicates, and makes upstream medium
Can pass through, four reinforcing rib structures of quad type of rectangular channel are provided with positioning boss, under positioning boss on relative reinforcement
Portion is a cylindrical structure, and top is a frustum cone structure, and the rectangular opening of screen pack 1, with fixation is closed, is prevented with positioning round table
The play under a stream of water of screen pack 1.
（4）The combining structure of the linear adjustment structure of flow and motor switch valve element
Bonnet, 25 is a multi-step cylindrical structure, and upper end has six fang platform ranks to be tightened for bonnet, middle bench
There is screw thread in outside for connecting YE, and also there are screw thread and valve body 13 in lower step outside, and mouth sealing ring 22 coordinates, and rises tight
Gu sealing function, there is a through hole in the middle of the upper end of bonnet, 25, centre is equipped with valve rod 17, and there is cylinder step the lower end of valve rod 17,
There is external screw thread on the face of cylinder, supporting plate 27 be housed on step, the lower plane of supporting plate 27 has a groove equipped with O-ring seal 3 15,
With supporting plate 27 match be linear flap 16.
Linear flap 16 is a frustum cone structure, centre have an endoporus be provided with nut be engaged with the screw thread of the lower end of valve rod 27 by
Supporting plate 27 and O-ring seal 5 24 are pressed on valve rod, can both have been realized linear regulation or can have been realized closing function, in valve rod
There is a cylinder step in portion, and the inside sequentially passes through valve rod 17, the middle part of valve rod 17 equipped with O-ring seal 5 24, pad 23, spring 2 21
Cylinder step plays holddown spring 2 21, and there is stop sleeve 20 in the outside of spring 2 21, and the lower end of stop sleeve 20 is pressed in pad
Also there is a through hole to be engaged with valve rod 17 on 23, in the middle of stop sleeve 20, the upper end of stop sleeve 20 is lock screw 19, locking screw
Silk 19 is also a cylindrical sleeves with the level, and lower end outside is provided with screw thread and is engaged with the internal thread of the upper end of bonnet, 25, lower end
Endoporus is cylindrical with stop sleeve 20 to be engaged, and O-ring 4 18 is housed between lock screw 19 and the upper surface of stop sleeve 20, is risen close
Envelope is acted on, and the upper end of lock screw 19 is wrenched for hexahedron serves, and centre also has a through hole to be engaged with valve rod 17, lock screw
19 are pressed on the step surface of the interstitial hole of bonnet, 25 pad 23, stop sleeve 17.
The operation principle of the present embodiment is as follows：
With reference to Fig. 8, flow automatic balance function when medium enters the product from left end screwed hole, by valve core housing 10,
Adjusting spool 7, linear flap 16, reach the right-hand member outlet of valve, and fluid generates three sections in the presence of automatic core assembly
Different pressure areas, 10 from import to valve core housing between region pressure highest, referred to as P1, flow through by valve core housing 10 with regulation
Valve element 7 reaches the top of pressure-sensitive diaphragm 2 and valve core housing 10 and declines with the areal pressure of adjusting spool 7, referred to as P2；Flow through valve core housing 10
It is minimum with the areal pressure that linear flap 16 to valve right-hand member is exported, referred to as P3；This pressure is led by 4 on valve core housing 10
Water hole 10b reaches the region between the bottom of pressure-sensitive diaphragm 2 and bottom flange 3；Elastic force one with spring 1 reacts on pressure-sensitive diaphragm
2 bottom, when system pressure is raised, P2 increases, the power for acting on the top of pressure-sensitive diaphragm 2 is greater than P3 with spring 1 in sense
What the lower section of pressuring film plate 2 was formed makes a concerted effort, and pressure-sensitive diaphragm 2 drives the motion upwards of adjusting spool 7, adjusting spool 7 and the side of valve core housing 10
Distance between the window of 4, face reduces, therefore water outlet open area reduces, i.e., the negotiability of valve-flow coefficient k v values reduce, root
According to flow formulaFlow can remain unchanged, and realize new poised state；Vice versa, so as to reach flow
The purpose for automatically adjusting.
Flow linear regulating function and closing function：When regulation flow is needed, control panel gives YE one
During individual equal proportion Regulate signal, the push rod of YE pushes down on valve rod 17, and valve rod 17 overcomes the pretension of spring 2 21 to make
Supporting plate 26 and linear flap 16 is firmly driven to move downward, the difference according to signal can make linear valve valve 16 rest on difference
Position, the linear regulation of flow is realized together with the upper end hole of valve core housing 10, when need shut-off when, control panel gives electronic holding
One shutdown signal of row device, the push rod of YE pushes down on valve rod 17 and drives supporting plate 26, O-ring seal 4 18 and line
Property flap 16 O-ring seal 4 18 and the upper surface of valve core housing 10 is fitted completely completion closing function downwards, otherwise electronic ought hold
Row device obtain an opening signal when, the push rod of YE is moved upwards, valve rod 17 under the active force of spring 2 21 to
Upper motion completes opening function upwards so as to drive supporting plate 26 and linear flap 16.
The present embodiment is applied to fluid media (medium) pipeline control system, is not only adjusted during pressure oscillation in pipe-line system
High precision, keeps rate of discharge stabilization, and small volume, does not influence flow, and ensures that regulation can be realized independently with closing function
The advantages of.
Above content is that the preferred embodiment created with reference to the utility model enters one to what provided technical scheme was made
Step is described in detail, it is impossible to assert that the utility model creates specific implementation and is confined to above-mentioned these explanations, for the utility model
For creating person of an ordinary skill in the technical field, do not departing from the premise of the utility model creates design, can be with
Some simple deduction or replace are made, the protection domain of the utility model creation should be all considered as belonging to.
Claims (10)
1. automatic core assembly, it is characterised in that：Including pressure-sensitive diaphragm, compression plate, adjusting spool and valve core housing, described valve element
It is many boss tube-in-tube structures of cylinder to cover, and water-guiding hole is provided with its upper surface, and the water-guiding hole leads directly to the stepped hole of its lower surface, should
Stepped hole sets rectangular channel and communicates with valve core housing middle part, it is ensured that upstream medium passes through；Adjusting spool is cylindrical sleeves with the level
Structure, its upper surface sets thin-walled cutting edge, and to adjust flow, setting step circular hole is run through in center, and in the step circular hole
Through hole is set, and to transmit pressure, lower end sets groove, and the groove coordinates with the interstitial hole boss of pressure-sensitive diaphragm, and extends through
Compression plate below the interstitial hole of pressure-sensitive diaphragm to pressure-sensitive diaphragm, compression plate lower end closed；Valve core housing is sleeved on outside adjusting spool
On wall.
2. core assembly as claimed in claim 1 automatic, it is characterised in that：Described adjusting spool middle part sets annular groove,
Valve core housing is sleeved in adjusting spool by the annular groove.
3. core assembly as claimed in claim 1 automatic, it is characterised in that：Set between described valve core housing and adjusting spool
There is spring.
4. core assembly as claimed in claim 1 automatic, it is characterised in that：Pressure transmission is set on described compression plate upper surface
Groove.
5. core assembly as claimed in claim 1 automatic, it is characterised in that：Described rectangular channel top is provided with screen pack.
It is 6. a kind of to use as claimed in claim 1 the pressure difference independent type flow control valve of core assembly automatically, it is characterised in that：Bag
Include automatic core assembly, bottom flange, valve body, linear flap, valve rod, bonnet, and supporting plate, described automatic core assembly bag
Pressure-sensitive diaphragm, compression plate, adjusting spool and valve core housing are included, valve core housing is many boss tube-in-tube structures of cylinder, is set on its upper surface
There is water-guiding hole, the water-guiding hole leads directly to the stepped hole of its lower surface, the stepped hole sets rectangular channel and communicates with valve core housing middle part, it is ensured that
Upstream medium passes through；Adjusting spool is cylindrical sleeves structure with the level, and its upper surface sets thin-walled cutting edge, and thin-walled cutting edge is downward
Extend through adjusting spool and step circular hole is set, and through hole is set in the step circular hole, lower end is through pressure-sensitive diaphragm to pressure
Tight disk, compression plate lower end closed, and compressed by bottom flange；Valve element set upper side is connected with valve body, and remaining part is then sleeved on regulation
On valve element outer wall；Bonnet, upper end surface is provided with valve rod, and middle part is connected with YE, is moved up and down with band ovable valve stem,
Bonnet, bottom coordinates with valve body installs；Valve rod lower end is provided with supporting plate, and the supporting plate is located at adjusting spool top, linear valve
Valve coordinates with supporting plate to be installed.
7. a kind of pressure difference independent type flow control valve as claimed in claim 6, it is characterised in that：Described valve core housing and regulation
Spring one is provided between valve element.
8. a kind of pressure difference independent type flow control valve as claimed in claim 6, it is characterised in that：There is circle described valve rod lower end
Pylon rank, on cylinder step be equipped with supporting plate, with supporting plate match be linear flap.
9. a kind of pressure difference independent type flow control valve as claimed in claim 6, it is characterised in that：Described linear flap is circle
Platform structure, it is to be threadedly coupled between valve rod.
10. a kind of pressure difference independent type flow control valve as claimed in claim 6, it is characterised in that：Described valve rod middle part sets
Cylinder step is equipped with, spring two is set on valve rod by the cylinder step.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165752.4U CN206290789U (en) | 2016-10-25 | 2016-10-25 | A kind of automatic core assembly and pressure difference independent type flow control valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165752.4U CN206290789U (en) | 2016-10-25 | 2016-10-25 | A kind of automatic core assembly and pressure difference independent type flow control valve |
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| CN206290789U true CN206290789U (en) | 2017-06-30 |
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| CN201621165752.4U Withdrawn - After Issue CN206290789U (en) | 2016-10-25 | 2016-10-25 | A kind of automatic core assembly and pressure difference independent type flow control valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352128A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Automatic valve core component and differential pressure-independent type flow control valve |
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
| CN109751418A (en) * | 2017-11-03 | 2019-05-14 | 浙江盾安智控科技股份有限公司 | Dynamic equilibrium valve |
| CN110848399A (en) * | 2019-11-18 | 2020-02-28 | 吴忠仪表有限责任公司 | Low flow resistance zero leakage control valve |
-
2016
- 2016-10-25 CN CN201621165752.4U patent/CN206290789U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352128A (en) * | 2016-10-25 | 2017-01-25 | 浙江盾安智控科技股份有限公司 | Automatic valve core component and differential pressure-independent type flow control valve |
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
| CN109751418A (en) * | 2017-11-03 | 2019-05-14 | 浙江盾安智控科技股份有限公司 | Dynamic equilibrium valve |
| CN109751418B (en) * | 2017-11-03 | 2024-06-04 | 浙江迪艾智控科技股份有限公司 | Dynamic balance valve |
| CN110848399A (en) * | 2019-11-18 | 2020-02-28 | 吴忠仪表有限责任公司 | Low flow resistance zero leakage control valve |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170630 Effective date of abandoning: 20180928 |