CN205155279U - Dynamic balance adjusting valve - Google Patents
Dynamic balance adjusting valve Download PDFInfo
- Publication number
- CN205155279U CN205155279U CN201520834494.3U CN201520834494U CN205155279U CN 205155279 U CN205155279 U CN 205155279U CN 201520834494 U CN201520834494 U CN 201520834494U CN 205155279 U CN205155279 U CN 205155279U
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- urceolus
- valve
- cover
- valve body
- water
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Abstract
The utility model discloses a dynamic balance adjusting valve, including the valve body with install the case in the valve pocket of valve body, the valve pocket is including sealed intake antrum that separates and play water cavity, the case includes the case bottom bottom setting up the inner tube in the urceolus and be fixed in the urceolus with fixing continuous urceolus, slip with the valve body, the bottom of inner tube has the pressure sensing board, and pressure sensing board, case bottom and urceolus form the response chamber that communicates with the intake antrum, the urceolus have the water inlet that is linked together with the intake antrum, with the delivery port that goes out the water cavity intercommunication, the inner chamber of inner tube is the rivers passageway of intercommunication water inlet and delivery port, and the lateral wall of inner tube is provided with the flow balance mouth, and the delivery port adjusted to the inner tube for the slip of urceolus flow area can be followed to the flow balance mouth, the case bottom has the center post that passes the pressure sensing board, the top of center post is fixed with the locking cap, be equipped with elastomeric element between locking cap and the pressure sensing board. Above -mentioned scheme can be improved as in the background art pipe network flow control effect.
Description
Technical field
The utility model relates to valve design field, particularly relates to a kind of dynamic balance adjusting 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, and then 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 then causes the water conservancy of system to be lacked of proper care.And water conservancy imbalance 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 adjusting 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 adjusting valve, comprises valve body and is installed on the spool in the valve pocket of described valve body; Wherein, described valve pocket comprises the water-inlet cavity and water chamber that seal and separate; Described spool comprise be fixedly linked with described valve body urceolus, be arranged at the inner core in described urceolus and be fixed on the spool bottom bottom described urceolus slidably; The bottom of described inner core has pressure-sensitive plate, and described pressure-sensitive plate, described spool bottom form with described urceolus the induction cavity be communicated with described water-inlet cavity; Described urceolus has the water intake be connected with described water-inlet cavity, the water outlet be communicated with described water chamber; The inner chamber of described inner core is the flow channel being communicated with described water intake and described water outlet, and the sidewall of described inner core is provided with flow equilibrium mouth, described flow equilibrium mouth can regulate the circulation area of described water outlet relative to the slip of described urceolus with described inner core; Described spool bottom has the newel through described pressure-sensitive plate; The top of described newel is fixed with locking cap; Elastic member is provided with between described locking cap and described pressure-sensitive plate.
Preferably, above-mentioned dynamic balance adjusting valve also comprises the final controlling element of the valve body top cover being installed on described valve body, the valve shaft of dam cover and the cover that dams described in being fixed on be snug fit in described urceolus; Wherein: described in the cover that dams be arranged on the top of described inner core; The described cover that dams can slide relative to described urceolus with water outlet described in shutoff; Described final controlling element have can to described valve shaft apply to make its along described in dam the valve shaft drive portion of cover glide direction movement.
Preferably, described valve shaft drive portion and described valve shaft have the first fixed groove and the second fixed groove respectively, and described first fixed groove is connected by U-shaped link with described second fixed groove.
Preferably, described valve shaft through described valve body top cover, and by end to coordinate with valve shaft set screw nut be fixed on described in dam cover.
Preferably, described valve body top cover has the first perforation; Described first perforation is removably provided with sealing cover; Described sealing cover is provided with the second perforation; Described sealing cover is connected with described first aperture seal; Described valve shaft through described second perforation, and seals laminating with it.
Preferably, described flow equilibrium mouth comprises the top being arranged on described inner core, and the multiple top flux balance port be communicated with described water outlet; Multiple described top flux balance port is arranged along the circumferencial direction of described inner core, and described top flux balance port is V-notch.
Preferably, described valve core base is provided with the through hole being communicated with described induction cavity and described water-inlet cavity
In the process of the dynamic balance adjusting valve work that the utility model provides, when the water flowing through dynamic balance adjusting valve occurs that pressure changes, to difference be there is in the pressure in induction cavity and flow channel, under the effect of this difference, inner core will occur sliding relative to urceolus, and now deformation occurs elastic member thereupon, along with the change of decrement, the active force that elastic member acts on pressure-sensitive plate also changes, and finally reaches state of equilibrium, namely makes inner core no longer slide relative to urceolus.And reaching in the process of this balance, the flow equilibrium mouth of inner core can regulate the circulation area of at least one in water intake and water outlet relative to the slip of urceolus with inner core, and then ensure that the flow flowing through dynamic balance adjusting valve remains at setting flow.And this process is dynamically carried out in the working procedure of dynamic balance adjusting valve, and the component realizing this adjustment are also not easy to occur damaging.Therefore, the dynamic balance manual 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 adjusting valve that Fig. 1 provides for the utility model embodiment;
The structural representation of the spool urceolus that Fig. 2 provides for the utility model embodiment;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
The structural representation of the spool inner core that Fig. 4 provides for the utility model embodiment;
Fig. 5 is that the B-B of Fig. 4 is to sectional view;
Fig. 6 is the cross-sectional view of the valve core base that the utility model embodiment provides;
Fig. 7 is the part-structure schematic diagram of the dynamic balance adjusting valve that the utility model provides, and in Fig. 6, arrow direction is water (flow) direction.
Description of reference numerals:
1-final controlling element, 2-sealing cover, 3-sealing cover exterior seal ring, 4-valve shaft, 5-top cover set screw and packing ring, 6-dams cover, 7-urceolus, 8-inner core, 9-urceolus set screw, 10-spring, 11-pressure-sensitive plate seal ring, 12-valve body, 13-spool bottom, 14-valve body bottom, 15-bottom set screw and packing ring, 16-valve body bottom seal ring, 17-inner core seal ring, 18-urceolus seal ring, 19-locking cap, 20-valve shaft set screw nut, 21-dams cover seal ring, 22-top seal circle, 23-valve body top cover, 24-valve shaft seal ring, 25-U type screw rod and nut, 71-water outlet, 72-water intake, 73-annular groove, 81-top flux balance port, 82-crosses head piece, 83
-pressure-sensitive plate, 131-pressure guide hole, 132-newel.
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.
Please refer to Fig. 1-7, the utility model embodiment provides a kind of dynamic balance adjusting valve, for regulating the water flow of pipeline.This dynamic balance adjusting valve comprises valve body 12 and spool.Valve body has valve body top cover 23 and valve body bottom 14 usually, and valve body top cover 23 and valve body bottom 14 are detachably fixed, and are convenient to the installation of spool.Valve body top cover 23 can be fixed on the top of valve body 12 by top cover set screw and packing ring 5, and arranges top seal circle 22 between valve body top cover 23 and valve body 12, to ensure the sealing of joint.Valve body bottom 14 can be fixed on the bottom of valve body 12 by bottom set screw and packing ring 15, and is provided with valve body bottom seal ring 16 between valve body bottom 14 and valve body 12, to ensure the sealing of joint.
Spool is arranged in the valve pocket of valve body 12, and valve pocket comprises water-inlet cavity and the water chamber of seal isolation, and water-inlet cavity is communicated with intake pipe, and water chamber is used for being communicated with outlet conduit.In the present embodiment, spool to realize the seal isolation of water-inlet cavity and water chamber by a series of sealing after being installed to the valve pocket central diaphragm of valve body 12.
Spool comprises urceolus 7, inner core 8 and spool bottom 13.Wherein, urceolus 7 is peripheral components of spool, is fixed on valve body 12.Urceolus 7 can be fixed on the dividing plate of valve body 12 by urceolus set screw 9, and arranges urceolus seal ring 18 between urceolus 7 and dividing plate.Urceolus 7 has water outlet 71 and water intake 72, and water intake 72 is connected with water-inlet cavity, and water outlet 71 is connected with water chamber.Spool bottom 13 is sealedly and fixedly connected in the bottom of urceolus 7.Usually, spool bottom 13 is achieved a fixed connection by screw-thread fit with the bottom of urceolus 7.
It is inner that inner core 8 is arranged at urceolus 7 slidably, and the bottom of inner core 8 has pressure-sensitive plate 83, and pressure-sensitive plate 83, spool bottom 13 form with urceolus 7 induction cavity be communicated with water-inlet cavity, and then make induction cavity identical with the water flow pressure of water-inlet cavity.When the water flow pressure of water-inlet cavity changes, pressure-sensitive chamber also can sense, and then makes water flow pressure change inform pressure-sensitive plate 83.The inner chamber of inner core 8 is flow channel, and flow channel is communicated with water intake 72 and water outlet 71.Flow channel and pressure-sensitive chamber lay respectively at the both sides of pressure-sensitive plate 83.Current enter into water chamber through water intake 72, flow channel and water outlet 71 successively from water-inlet cavity.The bottom of spool bottom 13 is provided with pressure guide hole 131 usually, and pressure guide hole 131 is for being communicated with pressure-sensitive chamber and water-inlet cavity.Certainly, in the present embodiment, pressure-sensitive chamber can also be realized by other structure with being communicated with of water-inlet cavity, was not limited to and adopted pressure guide hole 131.
The sidewall of inner core 8 is provided with flow equilibrium mouth, and flow equilibrium mouth can adjust the circulation area at the mouth of a river 71 relative to the slip of urceolus 7 with inner core 8, the change of circulation area can realize the Flow-rate adjustment through dynamic balance adjusting valve.Inner core seal ring 17 is provided with the sealing between slip surface both realizing between inner core 8 and urceolus 7.
Spool bottom 13 has the newel 132 through pressure-sensitive plate 83, and the top of newel 132 is fixed with locking cap 19, is provided with elastic member between locking cap 19 and pressure-sensitive plate 83.Elastic member is generally spring 10.Usually, be formed in one newel 132 structure with lid body (spool bottom 13 removes the position of newel 132).The top of newel 132 is threaded end, the top screw-thread fit of locking cap 19 and newel 132.In order to realize the sealing between pressure-sensitive chamber and flow channel, between newel 132 and pressure-sensitive plate 83, be provided with pressure-sensitive plate seal ring 11.
The dynamic balance adjusting valve that the present embodiment provides plays the effect of balance, and under referring to the prerequisite set at flow, the flow of dynamic balance adjusting 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.
Below in conjunction with Fig. 7, the flow equilibrium process of the dynamic balance adjusting valve that the present embodiment provides is further introduced and is explained.The flow equilibrium function of the dynamic balance adjusting valve that the present embodiment provides mainly relies on inner core 8, the equilibrium relation of elastic member (as spring 10) realizes.Shown in Fig. 7, because pressure-sensitive chamber is communicated with water-inlet cavity, therefore the hydraulic pressure P1 of water-inlet cavity is identical with the hydraulic pressure in pressure-sensitive chamber, and the pressure therefore in pressure-sensitive chamber also can be P1.Current enter the inner chamber of spool from water intake 72, namely the inner chamber of urceolus 7, i.e. flow channel, and in this process, current create pressure drop, make the pressure of the inner chamber of spool become P2 (P2 < P1).Now, the hydraulic pressure between flow channel and pressure-sensitive chamber has pressure reduction, and then makes the both sides of pressure-sensitive plate 83 produce pressure difference, and this pressure difference is (P1-P2) * S; Wherein S is the side surface of pressure-sensitive plate, the both side surface area equation of pressure-sensitive plate 83.In such cases, pressure-sensitive plate 83 moves up, and then makes inner core 8 relative to urceolus 7 upward sliding.Because elastic member is arranged between pressure-sensitive plate 83 and locking cap 19, and the spool bottom 13 that locking cap 19 connects is fixed with urceolus 7, and therefore, the mobile of pressure-sensitive plate 83 can pressure elasticity parts.
Under the prerequisite increasing elastic member amount of deformation, a balance can be obtained, i.e. P1*S=P2*S+F.When fluctuation occurs system pressure, for pressure increase, P1 increases and becomes P1 ', P2 is increased to P2 ', and △ P1 > △ P2, therefore the pressure-sensitive balance of P1 ' * S > P2 ' * S+F is broken, and inner core 8 can move upward.The flow equilibrium mouth of inner core 8 is at least partially obscured, and then the negotiability KV value of dynamic balance adjusting valve is reduced.Spring is compressed simultaneously, 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.In the balance that this is new,
because pressure reduction △ P increases before and after valve, and the negotiability KV ' reduction that valve is new.Finally can ensure that the water flow value of circulation dynamic balance adjusting valve is constant, namely ensure that water flow value is predefined value.
Compared to the content introduced in background technique, the dynamic balance adjusting valve that the present embodiment provides is by the effect between pressure-sensitive plate 83 and elastic member, after hydraulic pressure is changed, the area of the flow equilibrium mouth on inner core 8 can correspondence change, and then the circulation area of water outlet is changed, and then change the negotiability of dynamic balance adjusting valve, and then make after hydraulic pressure changes, ensure that the flow of dynamic balance adjusting valve remains at setting flow.And the component stating adjustment in realization are also not easy to occur damaging, the dynamic balance adjusting valve that therefore the utility model embodiment provides has better Flow-rate adjustment effect.
The dynamic balance adjusting valve that the present embodiment provides can also comprise final controlling element 1, dam cover 6 and valve shaft 4.Final controlling element is installed on the valve body top cover 23 of valve body 12, and it is inner that the cover 6 that dams is snug fit at urceolus 7, and valve shaft 4 is fixed on the cover 6 that dams, and the movement of valve shaft 4 can drive the cover 6 that dams to move.The cover 6 that dams is arranged on the top of inner core 8, and the cover 6 that dams can slide with shutoff water outlet 71 relative to urceolus 7, and final controlling element 1 has can make it along the valve shaft drive portion of cover 6 glide direction movement of damming to valve shaft 4 applying.The valve shaft drive portion of final controlling element 1 drives valve shaft 4 to move and then indirectly drives the cover 6 that dams to slide, and then realizes the water outlet shutoff gradually to dynamic balance adjusting valve, and even close, visible, the movement of the cover 6 that dams can regulate the setting flow of dynamic balance adjusting valve.Concrete, valve shaft drive portion and valve shaft 4 have the first fixed groove and the second fixed groove respectively, and the first fixed groove is connected by U-shaped link with the second fixed groove, and described U-shaped link can be U-shaped screw rod and nut 25.In order to ensure, to effective closedown of dynamic balance adjusting valve, urceolus 7 to be provided with annular groove 73, to be provided with seal ring in annular groove 73, dock with seal ring when the cover 6 that dams moves to limit position, and then realize the closedown to water outlet 71.
In the present embodiment, final controlling element 1 can be self adaption type, with learning functionality.Final controlling element 1 after powering on, final controlling element 1 can determine the limit position that valve shaft 4 moves up and down automatically is installed, the starting point of these two its strokes of limit position seat and terminal, and the control signal of linear corresponding its 0 ~ 10V or 4 ~ 20mA.During use, only need to the corresponding voltage of final controlling element 1 or current signal, dynamic balance adjusting valve is opened to specific aperture by final controlling element 1, namely achieves the motorized adjustment function of dynamic balance adjusting valve.
Concrete, valve shaft 4 through valve body top cover 23, and is fixed on by end and valve shaft set screw nut 20 cover 6 that dams.Concrete, dam to be provided with between cover 6 and valve shaft 4 the cover seal ring 21 that dams realize both sealing.More specifically, valve body top cover 23 has the first perforation, and described first perforation is removably provided with sealing cover 2, is provided with sealing cover exterior seal ring 3 between sealing cover 2 and valve body top cover 23.Sealing cover 2 is provided with the second perforation, and valve shaft 4 through the second perforation, and seals laminating with it.Valve shaft seal ring 24 is set between valve shaft and sealing cover 2.Preferably, valve shaft seal ring 24 multiple, and distribute successively in the axis of valve shaft 4, and then formed multiple-sealed.
In the present embodiment, flow equilibrium mouth comprises the top being arranged on inner core 8, and the multiple top flux balance port 81 be communicated with water outlet 71, top flux balance port 81 is preferably V-notch.V-notch can ensure that aforesaid KV (i.e. the negotiability of valve) increases and decreases gradually with preset ratio more easily, the balance of guaranteed flow then.More preferred, multiple top flux balance port 81 is arranged along the circumferencial direction of inner core 8, to make the current flowing to water outlet 71 more stable.
In the present embodiment, flow equilibrium mouth can also comprise the bottom being arranged on inner core 8, and the head piece 82 be excessively communicated with water intake 72, now cross head piece 82 and play the effect of dodging.
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 (7)
1. a dynamic balance adjusting valve, is characterized in that, comprises valve body and is installed on the spool in the valve pocket of described valve body; Wherein, described valve pocket comprises the water-inlet cavity and water chamber that seal and separate; Described spool comprise be fixedly linked with described valve body urceolus, be arranged at the inner core in described urceolus and be fixed on the spool bottom bottom described urceolus slidably; The bottom of described inner core has pressure-sensitive plate, and described pressure-sensitive plate, described spool bottom form with described urceolus the induction cavity be communicated with described water-inlet cavity; Described urceolus has the water intake be connected with described water-inlet cavity, the water outlet be communicated with described water chamber; The inner chamber of described inner core is the flow channel being communicated with described water intake and described water outlet, and the sidewall of described inner core is provided with flow equilibrium mouth, described flow equilibrium mouth can regulate the circulation area of described water outlet relative to the slip of described urceolus with described inner core; Described spool bottom has the newel through described pressure-sensitive plate; The top of described newel is fixed with locking cap; Elastic member is provided with between described locking cap and described pressure-sensitive plate.
2. dynamic balance adjusting valve according to claim 1, is characterized in that, also comprises the final controlling element of the valve body top cover being installed on described valve body, the valve shaft of dam cover and the cover that dams described in being fixed on be snug fit in described urceolus; Wherein: described in the cover that dams be arranged on the top of described inner core; The described cover that dams can slide relative to described urceolus with water outlet described in shutoff; Described final controlling element have can to described valve shaft apply to make its along described in dam the valve shaft drive portion of cover glide direction movement.
3. dynamic balance adjusting valve according to claim 2, is characterized in that, described valve shaft drive portion and described valve shaft have the first fixed groove and the second fixed groove respectively, and described first fixed groove is connected by U-shaped link with described second fixed groove.
4. the dynamic balance adjusting valve according to Claims 2 or 3, is characterized in that, described valve shaft through described valve body top cover, and by end to coordinate with valve shaft set screw nut be fixed on described in dam cover.
5. dynamic balance adjusting valve according to claim 4, is characterized in that, described valve body top cover has the first perforation; Described first perforation is removably provided with sealing cover; Described sealing cover is provided with the second perforation; Described sealing cover is connected with described first aperture seal; Described valve shaft through described second perforation, and seals laminating with it.
6. dynamic balance adjusting valve according to claim 1, is characterized in that, described flow equilibrium mouth comprises the top being arranged on described inner core, and the multiple top flux balance port be communicated with described water outlet; Multiple described top flux balance port is arranged along the circumferencial direction of described inner core, and described top flux balance port is V-notch.
7. the dynamic balance adjusting valve according to claim 1,2,3,5 or 6, is characterized in that, described valve core base is provided with the pressure guide hole being communicated with described induction cavity and described water-inlet cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834494.3U CN205155279U (en) | 2015-10-26 | 2015-10-26 | Dynamic balance adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834494.3U CN205155279U (en) | 2015-10-26 | 2015-10-26 | Dynamic balance adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155279U true CN205155279U (en) | 2016-04-13 |
Family
ID=55690971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834494.3U Expired - Fee Related CN205155279U (en) | 2015-10-26 | 2015-10-26 | Dynamic balance adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274029A (en) * | 2019-05-14 | 2019-09-24 | 玉环市国达阀门有限公司 | It is a kind of for adding the control valve of refrigerant |
-
2015
- 2015-10-26 CN CN201520834494.3U patent/CN205155279U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274029A (en) * | 2019-05-14 | 2019-09-24 | 玉环市国达阀门有限公司 | It is a kind of for adding the control valve of refrigerant |
| CN110274029B (en) * | 2019-05-14 | 2020-07-03 | 玉环市国达阀门有限公司 | Control valve for adding refrigerant |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20201026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |