CN205036931U - Dynamic balance electric regulating valve - Google Patents
Dynamic balance electric regulating valve Download PDFInfo
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- CN205036931U CN205036931U CN201520798739.1U CN201520798739U CN205036931U CN 205036931 U CN205036931 U CN 205036931U CN 201520798739 U CN201520798739 U CN 201520798739U CN 205036931 U CN205036931 U CN 205036931U
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Abstract
The utility model discloses a dynamic balance electric regulating valve includes the valve body, a valve cove, case and executor, the case includes the urceolus, the first cover that dams, a pressure sensing section of thick bamboo, the bottom, the valve shaft, an elastomeric element and the 2nd elastomeric element, the water inlet that is linked together with the intake antrum has on the urceolus, the delivery port that is linked together with a water cavity, an elastomeric element's the other end acts on on the pressure sensing section of thick bamboo, the 2nd elastomeric element's the other end acts on on the bottom, first dam the cover and the equal suit of a pressure sensing section of thick bamboo on the valve shaft, and a response section of thick bamboo has intake end pressure sensing chamber and the rivers passageway that separates mutually respectively in the both sides of self slip direction, the rivers passageway communicates between water inlet and delivery port, the flow balance mouth has on the lateral wall of a pressure sensing section of thick bamboo, the first cover that dams can cover the water inlet gradually, valve shaft drive division from drive power to the valve shaft that to apply has on the executor. This dynamic balance electric regulating valve can improve the flow control effect of pipe network.
Description
Technical field
The utility model relates to the structure-design technique field of hydrovalve, particularly relates to a kind of dynamic balance electric regulating valve.
Background technique
In fluid supply DRS pipe network variable water volume system, need the resistance design system pressure according to loop, usually only design according to the resistance of index circuit.But when the actuating pressure of index circuit is ensured, the actuating pressure of other node much larger than design load, may cause the hydraulic misadjustment of system.In addition, the type selecting of water pump is excessive or improper also can cause operating flux off-design value, and the water conservancy of system also can be caused to lack of proper care.And the problem that water conservancy is lacked of proper care appears in pipe network, a large amount of wastes of the energy, the increase of running noises and the shortening of service life of equipment will be caused.
In order to alleviate or eliminate the phenomenon of hydraulic pipeline imbalance, need constantly to debug system, this kind of mode not only bothers, the at substantial time, the more important thing is that this adjustment is delayed, consequently actual when using system still there is the phenomenon of water conservancy imbalance at any time.The countermeasure utilizing dynamic flow balance valve to address this is that also is there is in conventional art, but this kind of dynamic flow balance valve uses elastomer diaphragm as pressure balance part, in or Environmental Conditions that pressure is higher poor in water quality, damaging easily appears in elastomer diaphragm, causes the function of this dynamic flow balance valve therefore to be lost.
In sum, in conventional art, the Flow-rate adjustment effect of pipe network is unsatisfactory, therefore, how to improve the Flow-rate adjustment effect of pipe network, has become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Model utility content
The purpose of this utility model is to provide a kind of dynamic balance electric regulating valve, to improve the Flow-rate adjustment effect of pipe network.
To achieve these goals, the utility model provides following technological scheme:
A kind of dynamic balance electric regulating valve, comprise valve body, valve gap, the final controlling element being installed on the spool in valve body and being installed on described valve gap, described valve body have the water-inlet cavity and water chamber that seal and separate, described spool comprises the urceolus fixing with described valve body, be snug fit at first in described urceolus to dam cover, be snug fit at the described first pressure-sensitive cylinder dammed in cover, be sealedly attached to the bottom bottom described urceolus, be installed on the valve shaft on described bottom, one end is fixed on the first elastic member on described valve shaft and one end and is fixed on the second elastic member on described valve shaft, described urceolus has the water intake be connected with described water-inlet cavity, the water outlet be connected with described water chamber, the other end of described first elastic member acts on described pressure-sensitive cylinder, the other end of described second elastic member acts on described bottom, described first dam cover and described pressure-sensitive cylinder is all set on described valve shaft, and described induction cylinder has the feed-water end pressure-sensitive chamber and flow channel that separate respectively in the both sides in own slip direction, described flow channel is communicated between described water intake and described water outlet, the sidewall of described pressure-sensitive cylinder has flow equilibrium mouth, described first cover that dams can cover described water intake gradually, described final controlling element has the valve shaft drive portion that can apply driving force to described valve shaft.
Preferably, in above-mentioned dynamic balance electric regulating valve, also comprise the locknut be set on described valve shaft, described locknut screw-thread fit in described valve gap, and described valve shaft has and can keep off with described locknut the limited step connect mutually.
Preferably, in above-mentioned dynamic balance electric regulating valve, described second dam cover inwall near the side of described water outlet, there is guiding surface, described guiding surface is enlarging shape structure along water (flow) direction.
Preferably, in above-mentioned dynamic balance electric regulating valve, also comprise the block be set on described valve shaft, described block can keep off and being connected between described limited step and described locknut.
Preferably, in above-mentioned dynamic balance electric regulating valve, the inside of the described first one of damming in cover and described pressure-sensitive cylinder has limited part, and described limited part can keep off mutually with the described first another one of damming in cover and described pressure-sensitive cylinder and connecing in the glide direction of described pressure-sensitive cylinder.
Preferably, in above-mentioned dynamic balance electric regulating valve, described locknut has graduation line.
Preferably, in above-mentioned dynamic balance electric regulating valve, described valve shaft comprises the first valve shaft being set in described valve gap inside, the second valve shaft filled with described pressure-sensitive jacket casing, and described first valve shaft and described second valve shaft abut against.
Preferably, in above-mentioned dynamic balance electric regulating valve, described flow equilibrium mouth comprises the V-notch of multiple circumferencial direction along described pressure-sensitive cylinder arrangement.
In technique scheme, the dynamic balance electric regulating valve that the utility model provides comprises valve body, valve gap, final controlling element and spool, spool comprises urceolus, first dams cover, pressure-sensitive cylinder, bottom, valve shaft, first elastic member and the second elastic member, after using this modulating valve, if there is change in the pressure flowing through the water of modulating valve, to difference be there is in the pressure so in the feed-water end pressure-sensitive chamber of pressure-sensitive cylinder both sides and flow channel, under the effect of this difference, appearance is slided by pressure-sensitive cylinder, and now there is deformation in the first elastic member thereupon, but along with the increase of deformation quantity, first elastic member will apply reaction force to pressure-sensitive cylinder, pressure-sensitive cylinder is finally no longer moved relative to urceolus.Compared to the content introduced in background technique, above-mentioned dynamic balance electric regulating valve is by the effect between pressure-sensitive cylinder and the first elastic member, after hydraulic pressure is changed, the area correspondence of the flow equilibrium mouth on the sidewall of pressure-sensitive cylinder changes, and then ensures that the flow of modulating valve remains at setting flow.And this process is dynamically carried out in the working procedure of modulating valve, and the component realizing this adjustment are also not easy to occur damaging.Therefore, the dynamic balance electric regulating valve that the utility model provides has better Flow-rate adjustment effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the dynamic balance electric regulating valve that Fig. 1 provides for the utility model embodiment;
The structural representation of the spool that Fig. 2 provides for the utility model embodiment;
What Fig. 3 dammed cover for pressure-sensitive cylinder and second that the utility model embodiment provides coordinates schematic diagram;
Fig. 4 is the sectional view of structure shown in Fig. 3;
The structural representation of the urceolus that Fig. 5 provides for the utility model embodiment;
Fig. 6 is for the A-A of structure shown in Fig. 5 is to sectional view;
The structural representation of the locknut that Fig. 7 provides for the utility model embodiment;
Fig. 8 is the sectional view of structure shown in Fig. 7.
Description of reference numerals:
1-final controlling element, 2-locknut, 3-sealing cover inner seal ring, 4-sealing cover exterior seal ring, 5-first valve shaft, 6-block, 7-U type seal ring, 8-sealing cover, 9-first dams cover, 10-pressure-sensitive cylinder, 11-first elastic member, 12-second dams cover, 13-second valve shaft, 14-valve body, 15-second elastic member, 16-bottom, 17-locking nut, 18-pad, 19-bottom seal ring, 20-sealing gasket, 21-second dams cover seal ring, 22-urceolus seal ring, 23-urceolus, 24-valve bonnet seal circle, 25-valve gap, 26-jump ring.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is further detailed.
As shown in figures 1-8, the utility model embodiment provides a kind of dynamic balance electric regulating valve, and it comprises valve body 14, valve gap 25, is installed on the spool in valve body 14 and is installed on the final controlling element 1 on valve gap 25.Wherein:
Valve body 14 has the water-inlet cavity and water chamber that seal and separate, water-inlet cavity and water chamber can be separated by the dividing plate in valve body 14, and water flows into from water-inlet cavity, and flows out from water chamber.Valve gap 25 is fixed on valve body 14, and both are tightly connected by valve bonnet seal circle 24.
Spool comprises the urceolus 23 fixing with valve body 14, be snug fit at first in urceolus 23 dam cover 9, be snug fit at first dam pressure-sensitive cylinder 10 in cover 9, be sealedly attached to the bottom 16 bottom urceolus 23, the first elastic member 11 on valve shaft is fixed in the valve shaft be installed on bottom 16, one end and the second elastic member 15 on valve shaft is fixed in one end, the other end of the first elastic member 11 acts on pressure-sensitive cylinder 10, and the other end of the second elastic member 15 acts on bottom 16.U-shaped seal ring 7 is set between valve shaft and valve gap.
Urceolus 23 can directly embed on the dividing plate in valve body 14, it has the water intake be connected with water-inlet cavity, the water outlet be connected with water chamber; Urceolus seal ring 22 is set between urceolus 23 and dividing plate.Pressure-sensitive cylinder 10 and first cover 9 that dams all is set on valve shaft, therefore pressure-sensitive cylinder 10 is installed on urceolus 23 by valve shaft and bottom 16, and pressure-sensitive cylinder 10 has the feed-water end pressure-sensitive chamber and flow channel that separate respectively in the both sides in own slip direction, this flow channel is communicated between water intake and water outlet, the sidewall of pressure-sensitive cylinder 10 has flow equilibrium mouth; Pressure in feed-water end pressure-sensitive chamber equals the pressure in water-inlet cavity substantially, and it is formed in the sunk structure on pressure-sensitive cylinder 10.First elastic member 11 and the second elastic member 15 all can adopt spring.First cover 9 that dams can cover water intake gradually under the effect of valve shaft, and final controlling element 1 has the valve shaft drive portion that can apply driving force to valve shaft, and this valve shaft drive portion can apply active force directly to valve shaft.
Valve shaft is set with sealing cover 8, sealing cover inner seal ring 3 is set between sealing lid 8 and valve shaft, sealing cover exterior seal ring 4 is set between itself and valve gap 25.First dams on cover 9 is provided with pressure guide hole, has substantially equal pressure to make the feed-water end pressure-sensitive chamber of pressure-sensitive cylinder 10 with water-inlet cavity.
Can realize the balance of flow during above-mentioned modulating valve work, said balance refers to when flow sets herein, and the flow of valve is not with the change in pressure imported and exported.According to flow formula
(kv is the negotiability of valve, directly related with the openings of sizes of valve), when pressure reduction increases, ensures that kv reduces according to special ratios, can realize the balance of flow.
In the utility model embodiment, the equilibrium function of flow mainly relies on the equilibrium relation of pressure-sensitive cylinder 10 and the first elastic member 11 to realize.As shown in Figure 2, arrow instruction water (flow) direction.Pressure P 1 in feed-water end pressure-sensitive chamber equals the pressure in water-inlet cavity substantially, and the pressure on flow channel top is P2, and the pressure of water chamber is P3, current by will pressure drop be produced after spool, i.e. P1 > P2 > P3.Now, there is obvious pressure difference in P1, P2, makes pressure-sensitive cylinder 10 at the moved downward of this pressure difference, and the first elastic member 11 can provide support power F to pressure-sensitive cylinder 10 simultaneously, makes pressure-sensitive plane reach equilibrium of forces.I.e. P1*S=P2*S+F (S is the area of contour of pressure-sensitive plane).When there is fluctuation in system pressure, for pressure increase, P1 increases and becomes P1 ', drive P2 to increase simultaneously and become P2 ', due to the impact of variable gradient, the boost value of P1 is greater than the boost value of P2, and the balance of pressure-sensitive plane is broken, and pressure-sensitive cylinder 10 moves downward and the area of passage at its flow equilibrium mouth place is reduced.Along with pressure-sensitive cylinder 10 moves downward, the first elastic member 11 is compressed, and spring force increases and becomes F ', until realize newly balancing P1 ' * S=P2 ' * S+F '.This process is the process of a dynamic change, and P1 ', P2 ' and F ' moment are all changing to realize final balance.Flow equilibrium mouth on pressure-sensitive cylinder 10 then can ensure that aforesaid kv changes according to special ratios, and pressure reduction increases, and kv reduces, and realizes the constant of flow Q value.
Compared to the content introduced in background technique, above-mentioned dynamic balance electric regulating valve is by the effect between pressure-sensitive cylinder 10 and the first elastic member 11, after hydraulic pressure is changed, the area correspondence of the flow equilibrium mouth on the sidewall of pressure-sensitive cylinder 10 changes, and then ensures that the flow of modulating valve remains at setting flow.And this process is dynamically carried out in the working procedure of modulating valve, and the component realizing this adjustment are also not easy to occur damaging.Therefore, the dynamic balance electric regulating valve that the utility model embodiment provides has better Flow-rate adjustment effect.
And arrange first and dam after cover 9, drive valve shaft by final controlling element 1, valve shaft drives first cover 9 that dams to move further, the aperture of water intake is changed, then regulates the setting flow of dynamic balance electric regulating valve.
Aforementioned final controlling element 1 has self-learning function, and therefore final controlling element 1 can be monitored the movement position of valve shaft, and drives valve shaft accordingly.In view of this, also can arrange the locknut 2 be set on valve shaft, this locknut 2 screw-thread fit in valve gap 25, and valve shaft has and can keep off with locknut 2 phase the limited step connect.After regulating the position of locknut 2 relative to valve gap 25, when valve shaft moves under the driving of final controlling element 1, connect once limited step keeps off with locknut 2 phase, namely valve shaft cannot move, and limits the limit position of valve shaft with this.Final controlling element 1 then can record the change in location of valve shaft, and then in follow-up working procedure, drives valve shaft according to this limit position.In addition, another limit position of valve shaft can be whole modulating valve when being in scram position, the position residing for valve shaft.
Alternatively, also can arrange the block 6 be set on valve shaft, this block 6 can keep off and being connected between limited step and locknut 2.Realize the spacing of valve shaft by block 6, the size of limited step can not only be reduced, relatively large block 6 can also be adopted, make, between block and locknut 2, there is larger active area, then strengthen limit effect.
Further, above-mentioned spool also comprises and is snug fit at second in urceolus 23 and dams cover 12, this second cover 12 that dams is fixed on pressure-sensitive cylinder 10, both specifically can adopt the mode of screw-thread fit, this first cover 9 that dams can apply to dam active force to second cover 12 that dams by pressure-sensitive cylinder 10, covers water outlet gradually to make second cover 12 that dams.When rotating handwheel 2, first cover 9 that dams moves, and this motion will be passed to second by pressure-sensitive cylinder 10 and dam on cover 12, makes second cover 12 that dams turn down water outlet.Obviously, this kind of structure can change the flow of water intake and water outlet simultaneously, makes the pressure of whole pipe network more stable.
Second dams to arrange second and to dam cover seal ring 21 between cover 12 and pressure-sensitive cylinder 10, bottom 16 is arranged sealing gasket 20, when second dams after cover 12 contacts with sealing gasket 20, water outlet is by complete shutoff, now, second dams cover seal ring 21 and urceolus seal ring 22 when can ensure to turn off modulating valve, and the gap leakage that current can not dam between cover 12 and urceolus 23 by second, to ensure the reliability turned off.
In a kind of embodiment, second dam cover 12 inwall near the side of water outlet, there is guiding surface, this guiding surface is enlarging shape structure along water (flow) direction.Current, when this guiding surface, flow to and there is transition stage, to make hydraulic pressure more stable.In addition, the inside of the first one of damming in cover 9 and pressure-sensitive cylinder 10 has limited part, and this limited part can keep off mutually with the first another one of damming in cover 9 and pressure-sensitive cylinder 10 and connecing in the glide direction of pressure-sensitive cylinder 10.This limited part can realize first dam cover 9 dynamic pressure cylinder 10 motion object, this kind is relatively simple for structure, reliable.
In actual application, the opening value of modulating valve is also that technician compares care.Therefore, in order to the aperture of vision-control valve intuitively, graduation line can be set on locknut 2.After rotating locknut 2, along with the motion of locknut 2, the amplitude that graduation line exposes also will change, and according to the numerical value of the concrete graduation line exposed, can know the size of the maximum opening of modulating valve.
Previously mentioned valve shaft can adopt whole axle, as an alternative solution, this valve shaft can comprise the first valve shaft 5 being set in valve gap 25 inside, the second valve shaft 13 be set with pressure-sensitive cylinder 10, first valve shaft 5 and the second valve shaft 13 abut against, second valve shaft 13 has groove, arrange jump ring 26 in this groove, this jump ring 26 is for realizing the second valve shaft 13 and the first location of damming between cover 9.Be provided with bottom seal ring 19, second valve shaft 13 between second valve shaft 13 and bottom 16 to be connected with bottom 16 with pad 18 by locking nut 17.Whole valve shaft is divided into two-part, after the combination of these two-part, makes valve shaft be through to bottom 16 place from final controlling element 1 place, to make valve shaft overall with certain adaptivity, do not need to ensure very high coaxality.
Further, the flow equilibrium mouth on pressure-sensitive cylinder 10 can comprise the V-notch of multiple circumferencial direction along pressure-sensitive cylinder 10 arrangement.This multiple V-notch can ensure aforesaid k more easily
vwith preset ratio increase and decrease, then ensure the balance of flow.
Mode above only by illustrating describes some one exemplary embodiment of the present utility model, undoubtedly, for those of ordinary skill in the art, when not departing from spirit and scope of the present utility model, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the utility model claims.
Claims (9)
1. a dynamic balance electric regulating valve, it is characterized in that, comprise valve body, valve gap, the final controlling element being installed on the spool in valve body and being installed on described valve gap, described valve body have the water-inlet cavity and water chamber that seal and separate, described spool comprises the urceolus fixing with described valve body, be snug fit at first in described urceolus to dam cover, be snug fit at the described first pressure-sensitive cylinder dammed in cover, be sealedly attached to the bottom bottom described urceolus, be installed on the valve shaft on described bottom, one end is fixed on the first elastic member on described valve shaft and one end and is fixed on the second elastic member on described valve shaft, described urceolus has the water intake be connected with described water-inlet cavity, the water outlet be connected with described water chamber, the other end of described first elastic member acts on described pressure-sensitive cylinder, the other end of described second elastic member acts on described bottom, described first dam cover and described pressure-sensitive cylinder is all set on described valve shaft, and described induction cylinder has the feed-water end pressure-sensitive chamber and flow channel that separate respectively in the both sides in own slip direction, described flow channel is communicated between described water intake and described water outlet, the sidewall of described pressure-sensitive cylinder has flow equilibrium mouth, described first cover that dams can cover described water intake gradually, described final controlling element has the valve shaft drive portion that can apply driving force to described valve shaft.
2. dynamic balance electric regulating valve according to claim 1, is characterized in that, also comprises the locknut be set on described valve shaft, and described locknut screw-thread fit in described valve gap, and described valve shaft has and can keep off with described locknut the limited step connect mutually.
3. dynamic balance electric regulating valve according to claim 2, it is characterized in that, described spool also comprises and is snug fit at second in described urceolus and dams cover, described second cover that dams is fixed on described pressure-sensitive cylinder, described first cover that dams can apply to dam active force to described second cover that dams by described pressure-sensitive cylinder, covers described water outlet gradually to make described second cover that dams.
4. dynamic balance electric regulating valve according to claim 3, is characterized in that, described second dam cover inwall near the side of described water outlet, there is guiding surface, described guiding surface is enlarging shape structure along water (flow) direction.
5. dynamic balance electric regulating valve according to claim 2, is characterized in that, also comprises the block be set on described valve shaft, and described block can keep off and being connected between described limited step and described locknut.
6. dynamic balance electric regulating valve according to claim 2, it is characterized in that, the inside of the described first one of damming in cover and described pressure-sensitive cylinder has limited part, and described limited part can keep off mutually with the described first another one of damming in cover and described pressure-sensitive cylinder and connecing in the glide direction of described pressure-sensitive cylinder.
7. dynamic balance electric regulating valve according to claim 2, is characterized in that, described locknut has graduation line.
8. the dynamic balance electric regulating valve according to any one of claim 1-7, it is characterized in that, described valve shaft comprises the first valve shaft being set in described valve gap inside, the second valve shaft filled with described pressure-sensitive jacket casing, and described first valve shaft and described second valve shaft abut against.
9. the dynamic balance electric regulating valve according to any one of claim 1-7, is characterized in that, described flow equilibrium mouth comprises the V-notch of multiple circumferencial direction along described pressure-sensitive cylinder arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798739.1U CN205036931U (en) | 2015-10-15 | 2015-10-15 | Dynamic balance electric regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798739.1U CN205036931U (en) | 2015-10-15 | 2015-10-15 | Dynamic balance electric regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036931U true CN205036931U (en) | 2016-02-17 |
Family
ID=55295835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520798739.1U Active CN205036931U (en) | 2015-10-15 | 2015-10-15 | Dynamic balance electric regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036931U (en) |
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2015
- 2015-10-15 CN CN201520798739.1U patent/CN205036931U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181226 Address after: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee after: Beijing HaiLin Energy Saving Technology Inc. Address before: 102208 Huilongguan International Information Industry Base, Changping District, Beijing Patentee before: BEIJING HAILIN LVJIAN ENERGY SAVING TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee after: Beijing Hailin Automatic Control Technology Co.,Ltd. Address before: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee before: HAILIN ENERGY TECHNOLOGY Inc. |
|
| CP01 | Change in the name or title of a patent holder |