CN102788161A - Direct-reading static balance valve - Google Patents
Direct-reading static balance valve Download PDFInfo
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- CN102788161A CN102788161A CN2012102895341A CN201210289534A CN102788161A CN 102788161 A CN102788161 A CN 102788161A CN 2012102895341 A CN2012102895341 A CN 2012102895341A CN 201210289534 A CN201210289534 A CN 201210289534A CN 102788161 A CN102788161 A CN 102788161A
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- valve
- dividing plate
- dial
- isopiestics
- opening
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Abstract
The invention relates to the technical field of valves, concretely a balance valve, in particular to a static balance valve. The invention aims to solve the problems that a traditional balance valve is inconvenient in use and low in accuracy. A direct-reading static balance valve comprises a valve deck (2) and a valve body (1), wherein the valve body (1) is provided with a liquid inlet (9) and a liquid outlet (10); a liquid inlet cavity (11) communicated with the liquid inlet (9), a regulating cavity (12) and a liquid outlet cavity (13) communicated with the liquid outlet (10) are arranged in the valve body (1); the liquid inlet cavity (11) is communicated with the regulating cavity (12); the regulating cavity (12) and the liquid outlet cavity (13) are partitioned through a horizontal partition plate (14); and the partition plate (14) is provided with a regulating plate (6) which rotates on the partition plate, wherein a plane friction pair is formed between the regulating plate and the partition plate. The direct-reading static balance valve is reasonable in design, simple in structure, convenient in use and clear in indication.
Description
Technical field
The present invention relates to valve technology field, be specially a kind of equilibrium valve, particularly a kind of direct reading type static balancing valve.
Background technique
Static balancing valve is a kind of valve that is applied to carry out in the liquid transmission and distribution network resistance balance, has good rating curve, can the reasonable distribution flow, accurately regulate pressure drop, and make pipe network reach static equilibrium.
At present, the static balancing valve on the market all is the cock-type structure, and working principle is that screw rod rotating band mantle shape spool moves up and down, and changes circulation area through the gap that changes between spool and valve body, and then regulates flow and pressure.For the expression regulated quantity, on rotatable handle, be provided with number of turns counter, every rotation 1/10 circle of handle is counted a numeral.When pipe network is regulated,, measure the aperture (gap between spool and valve body) of pressure reduction and definite equilibrium valve according to the type selecting chart that pressure reduction, flow target and contrast producer provide.
But the shortcoming that existing static balancing valve exists is following: when taper valve core was in the valve body, relative opening degree and relative discharge were linear basically; But after aperture increased to certain value, spool and valve body broke away from, and relative discharge and relative opening degree no longer are linear relationships; Approximate equal percentage curve, error is very big, carries out aperture by the type selecting chart simultaneously and regulates; Flow error is very big, has a strong impact on pipe network control.In addition, number of turns counter is set on the handle, can not obviously indicates the relation of flow, pressure reduction and aperture, need on-the-spot picture table to calculate during adjusting, and curve is very complicated, uses very inconvenience and poor accuracy.
Therefore, be necessary to invent a kind of novel static balancing valve.
Summary of the invention
The present invention uses problem inconvenient, poor accuracy in order to solve existing static balancing valve, and a kind of novel direct reading type static balancing valve is provided.
The present invention adopts following technological scheme to realize:
A kind of direct reading type static balancing valve comprises valve gap and has the valve body of liquid entering hole, liquid outlet, is provided with the admission chamber with liquid entering hole UNICOM in the said valve body, regulates the chamber, with the sap cavity that goes out of liquid outlet UNICOM; Said admission chamber with regulate chamber UNICOM, regulate the chamber and go out that the dividing plate through a level separates between the sap cavity; Said dividing plate is provided with and its formation planar friction is secondary, the adjustment disk of rotation above that, and having the identical and fan annular opening that can overlap fully of shape size on said dividing plate, the adjustment disk (is that opening on dividing plate, the adjustment disk can overlap fully; The shape of said opening is the shape between pairing two circular arcs of same central angle); Said adjusting chamber is through said opening and go out sap cavity UNICOM; Said valve gap places the top in said adjusting chamber; The indicating arrow that the upper surface of valve gap is provided with dial and cooperates with dial; Said dial is provided with radian and opening is corresponding, the 0.1MPa isopiestics of arcuation, and said 0.1MPa isopiestics is marked with corresponding Kv value; The upper surface of said adjustment disk is fixedly connected with perpendicular valve shaft, and said valve shaft runs through and stretches out behind the said valve gap and drive said dial and indicating arrow relatively rotates; Said liquid entering hole, liquid outlet are connected with pressure measuring tie-in through valve body respectively.
The valve coefficient that said Kv value is an equilibrium valve is for conventionally known to one of skill in the art.All general in valve field; When pressure reduction
=1bar (0.1MPa), the flow value Q through a certain opening is called the kv value.The flow of maximum opening is called the kvs value; When certain its kv value of the structure of valve then becomes definite value with the kvs value, other values can be calculated by formula
.For the aperture of static balancing valve of the present invention, refer to the degree that adjustment disk blocks the opening on the dividing plate through its upper shed.
Contacted two planes of said horizontal baffle and adjustment disk are enough smooth and smooth, and adjustment disk drives through valve shaft and on dividing plate, rotates.Pressure reduction between liquid entering hole and liquid outlet
Under the situation of=1bar (0.1MPa); If the central angle that the camber line of opening is corresponding is α; Then the corner of adjustment disk promptly is α; When the opening on the adjustment disk when opening on the dividing plate overlaps (being corner α=0) fully, static balancing valve is in maximum opening, this moment, indicating arrow pointed to the maximum Kv value on the dial; When adjustment disk has covered the opening on the dividing plate fully (is corner α=α
Max) time, static balancing valve is in minimum aperture, and this moment, indicating arrow pointed to the minimum Kv value on the dial, and is promptly zero.Opening on opening on adjustment disk and the dividing plate by overlap fully in the process that does not overlap fully (be corner α by 0 to α
MaxProcess in), the pressure reduction between liquid entering hole and liquid outlet
One regularly, and flow Q and corner α are linear.Its principle is: the present invention is coaxial fan annular shape with the open design on dividing plate and the adjustment disk.(wherein R is the long radius of looping pit according to fan annulus area formula
; R is the minor radius of looping pit; α is a corner); When one timing of hatch frame size, R, r are constant, and then F=(α) is a linear relationship.(wherein Q is a flow with
by formula Q=Fv; F is a circulation area; V is a flow velocity; ξ is a coefficient of partial resistance;
;
is pressure reduction) push away to such an extent that the relation of flow Q and area F and pressure reduction
is
F; Wherein
can be considered constant; When pressure reduction
timing;
also is constant; Then having at
is under the condition of certain value; Flow Q=(F) is a linear relationship; By F=(α) Q=(α)=(α) is arranged, getting outflow Q and corner α also is linear relationship.In order to guarantee the linear relationship of corner and flow, the center of circle that the fan annular opening on horizontal baffle, the adjustment disk is corresponding, the center of valve shaft, the center of circle of dial all are located on the coaxial line, and α=0 o'clock is rotation starting point, hard-over α
MaxBe consistent, such as all being 160 °, this just makes the 0-α on the dial
MaxAngular bisector become fan annulus area 0-F
MaxThe average mark secant, also become flow 0-Q
MaxBisectrix.Can directly the various flow value under each situation such as pressure reduction such as grade be marked on the dial and directly read.
Said formula Q=Kv
is known in those skilled in the art, and being not that the present invention institute is special derives.
During concrete the use; In real work; Pressure reduction
can confirm that specifically flow target (flow Q) is known according to the liquid entering hole of valve body and the pressure measuring tie-in of liquid outlet.According to known pressure reduction
and flow Q; Calculate corresponding Kv value according to formula Q=Kv
; Rotate valve shaft; Making indicating arrow aim at required Kv value gets final product; This moment, adjustment disk rotated; Opening on the dividing plate is carried out covering in various degree, thereby regulate flow.
Based on said process; The aperture of static balancing valve of the present invention is through the rotation adjusting of adjustment disk, and pressure reduction
, flow Q, the triadic relation is clear for the Kv value.
The present invention is reasonable in design, simple in structure, and is easy to use, indication is clear and definite, effectively overcome existing static balancing valve and used shortcoming inconvenient, poor accuracy.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of dial.
Among the figure, 1-valve body, 2-valve gap, 3-dial, 4-magnetic lock, 5-valve shaft; The 6-adjustment disk, 7-sealing gasket, 8-pressure measuring tie-in, 9-liquid entering hole, 10-liquid outlet; The 11-admission chamber, 12-regulates the chamber, and 13-goes out sap cavity, 14-dividing plate, 15-opening; 31-0.1MPa isopiestics, 32-Kv value, 33-isopiestics, 34-flow value, 35-indicating arrow.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the present invention is elaborated.
As shown in Figure 1, a kind of direct reading type static balancing valve comprises valve gap 2 and the valve body 1 with liquid entering hole 9, liquid outlet 10, is provided with the admission chamber 11 with liquid entering hole 9 UNICOMs in the said valve body 1, regulates chamber 12, with liquid outlet 10 UNICOMs go out sap cavity 13; Said admission chamber 11 with regulate chamber 12 UNICOMs, regulate chamber 12 and go out that the dividing plate 14 through a level separates between the sap cavity 13; Said dividing plate 14 is provided with and its formation planar friction is secondary, the adjustment disk 6 of rotation above that, has the fan annular opening 15 that the shape size is identical and can overlap fully on said dividing plate 14, the adjustment disk 6; Said adjusting chamber 12 is through said opening 15 and go out sap cavity 13 UNICOMs; Said valve gap 2 places the top in said adjusting chamber 12, the indicating arrow 35 that the upper surface of valve gap 2 is provided with dial 3 and cooperates with dial 3; The upper surface of said adjustment disk 6 is fixedly connected with perpendicular valve shaft 5, and said valve shaft 5 runs through and stretches out behind the said valve gap 2 and drive said dial 3 and indicating arrow 35 relatively rotates; Said liquid entering hole 9, liquid outlet 10 are connected with pressure measuring tie-in 8 through valve body 1 respectively.
As shown in Figure 2, said dial 3 is provided with that radian and opening are 15 corresponding, the 0.1MPa isopiestics 31 of arcuation, and said 0.1MPa isopiestics 31 is marked with corresponding Kv value 32.Also be provided with some radians and opening 15 corresponding, isopiesticss 33 arcuation, different pressure reduction (being that △ P is the isopiestics of 0.2bar, 0.4bar, 0.6bar, 0.8bar) on the said dial 3, all indicate the pressure reduction
according to isopiestics 33 of living in, corresponding Kv value, formula Q=Kv
on said every isopiestics 33 and calculate corresponding flow value 34.The isopiestics 33 layering settings and the 0.1MPa isopiestics 31 of said 0.1MPa isopiestics 31 and some arcuations place outermost surface, and promptly the isopiestics 33 of the 0.1MPa isopiestics 31 of arcuation and some arcuations is each corresponding camber line on one group of concentric circle.The intersection point place of ray is divided equally at each isopiestics and each angle; All marked relevant numerical; This numerical value is represented the flow value Q under each different pressure reduction and the different opening situation; Divide equally the flow value Q on the variant pressure reduction line on the ray at same angle; Satisfy relation
(
representes each flow value Q isobaric pressure reduction of living in, and unit is 100KPa).The isopiestics of the arcuation on the said dial 3 is corresponding with the radian of opening 15 to be comprised isobaric radian and equates that with the radian of opening 15 perhaps, the radian of isobaric radian and opening 15 amplifies in proportion or dwindles; In a word, as long as the relative opening degree that Kv value 32 on the isopiestics or flow value 34 can correctly reflect static balancing valve of the present invention.
Further, said indicating arrow 35 places a fixed position of valve gap 2 upper surfaces, and said valve shaft 5 is fixedly connected with dial 3; Perhaps, said dial 3 fixedly places the upper surface of valve gap 2, and said valve shaft 5 is fixedly connected with said indicating arrow 35.During concrete the use, can be that the indication arrow is motionless, dial rotates with valve shaft, and be as shown in Figure 2; Also can be that dial is motionless, indicating arrow rotates with valve shaft.
Further, be provided with between said dividing plate 14 and the adjustment disk 6 and the fixing sealing gasket 7 of dividing plate 14, said sealing gasket 7 is provided with the opening that fan annular opening 15 shape sizes with dividing plate 14 are identical, can overlap fully.Said sealing gasket 7 is enough smooth and smooth with adjustment disk 6 contacted two planes, and adjustment disk 6 drives through valve shaft 5 and on sealing gasket 7, rotates.In the static balancing valve of small dimension, there is not sealing gasket can realize good sealing between dividing plate 14 and the adjustment disk 6 yet, in the static balancing valve of big specification, sealing gasket need be set between dividing plate 14 and the adjustment disk 6 realize well sealing.
Further, the upper end of said valve shaft 5 is provided with magnetic lock 4.
Article 5, isopiestics 33 commonly used is respectively
=0.2bar,
=0.4bar,
=0.6bar,
=0.8bar,
=1bar; The theoretical calculation of the flow value 34 on it and test experiments all very coincide, and have made things convenient for and have read and select for use.In addition; Use for convenient;
also designs on dial with formula; Can be for the numerical value that does not have on the dial through calculating corresponding Kv value on dial.
During adjusting; Open magnetic lock 4; Take off after the tapered end of magnetic lock 4; According to known pressure reduction
and flow Q,, make indicating arrow aim at institute's indexing with instrument rotating valve axle 5; The rotation of adjustment disk 6 at this moment hides the opening of sealing gasket 7 in various degree, thereby regulates flow.If pressure reduction
and flow Q clearly do not show on dial; Then calculate corresponding Kv value according to known pressure reduction
, flow Q and formula Q=Kv
; Rotating shaft 5 then, make indicating arrow 35 point to corresponding Kv value and get final product.
Applicating example:
Example 1. known systems need be used flow 25m
3/ h records pressure reduction by liquid entering hole 9 and 10 liang of pressure measuring tie-ins of locating 8 of liquid outlet and does
=0.4bar.Ask the dial adjusted position.
Separate: by checking in 25m on the pressure reduction camber lines such as 0.4bar
3/ h flow point is aimed at dial with indicating arrow and is forwarded the kv value 40m on the outermost radius to
3/ h gets final product.
Example 2. is known
=1.5bar needs flow 20m
3/ h.Ask adjusted position.
Separate: this pressure reduction has exceeded and has waited the pressure reduction camber line, can by
Try to achieve kv=
=16.32, with arrow alignment scale kv value 16.32m
3/ h gets final product.
Direct reading type static balancing valve of the present invention adopts new-type structure and the design of novel dial, and the flow performance curve that makes static balancing valve is type linearly, and flow, pressure reduction are regulated desirable more.And; Flow, pressure reduction, Kv value (aperture) concern clear; Not only can directly set flow according to pressure reduction; Can also on dial, find corresponding pressure difference according to known mass flow; Flowmeter for example has been installed in the system; Can directly configure flow as required; Directly search the pressure difference
of this moment then, or calculate by
.
Claims (7)
1. direct reading type static balancing valve; It is characterized in that: comprise valve gap (2) and have the valve body (1) of liquid entering hole (9), liquid outlet (10); Be provided with admission chamber (11) in the said valve body (1) with liquid entering hole (9) UNICOM; Regulate chamber (12), with liquid outlet (10) UNICOM go out sap cavity (13); Said admission chamber (11) with regulate chamber (12) UNICOM, regulate chamber (12) and go out that the dividing plate (14) through a level separates between the sap cavity (13); Said dividing plate (14) is provided with and its formation planar friction adjustment disk (6) secondary, that rotate above that, has the fan annular opening (15) that the shape size is identical and can overlap fully on said dividing plate (14), the adjustment disk (6); Said adjusting chamber (12) is through said opening (15) and go out sap cavity (13) UNICOM; Said valve gap (2) places the top in said adjusting chamber (12); The indicating arrow (35) that the upper surface of valve gap (2) is provided with dial (3) and cooperates with dial (3); Said dial (3) is provided with radian and opening (15) is corresponding, the 0.1MPa isopiestics (31) of arcuation, and said 0.1MPa isopiestics (31) is marked with corresponding Kv value (32); The upper surface of said adjustment disk (6) is fixedly connected with perpendicular valve shaft (5), and said valve shaft (5) runs through and stretches out behind the said valve gap (2) and drive said dial (3) and indicating arrow (35) relatively rotates; Said liquid entering hole (9), liquid outlet (10) are connected with pressure measuring tie-in (8) through valve body (1) respectively.
2. direct reading type static balancing valve according to claim 1 is characterized in that: said indicating arrow (35) places a fixed position of valve gap (2) upper surface, and said valve shaft (5) is fixedly connected with dial (3); Perhaps, said dial (3) fixedly places the upper surface of valve gap (2), and said valve shaft (5) is fixedly connected with said indicating arrow (35).
3. direct reading type static balancing valve according to claim 1 and 2; It is characterized in that: be provided with also on the said dial (3) that some radians and opening (15) are corresponding, isopiesticss arcuation, different pressure reduction (33); All indicate pressure reduction
according to isopiestics of living in (33), corresponding Kv value, formula Q=Kv
on said every isopiestics (33) and calculate corresponding flow value (34), isopiestics (33) the layering setting and the 0.1MPa isopiestics (31) of said 0.1MPa isopiestics (31) and some arcuations place outermost surface.
4. direct reading type static balancing valve according to claim 1 and 2; It is characterized in that: be provided with the sealing gasket (7) fixing with dividing plate (14) between said dividing plate (14) and the adjustment disk (6), said sealing gasket (7) is provided with the opening that fan annular opening (15) shape size with dividing plate (14) is identical, can overlap fully.
5. direct reading type static balancing valve according to claim 3; It is characterized in that: be provided with the sealing gasket (7) fixing with dividing plate (14) between said dividing plate (14) and the adjustment disk (6), said sealing gasket (7) is provided with the opening that fan annular opening (15) shape size with dividing plate (14) is identical, can overlap fully.
6. direct reading type static balancing valve according to claim 4 is characterized in that: the upper end of said valve shaft (5) is provided with magnetic lock (4).
7. direct reading type static balancing valve according to claim 5 is characterized in that: the upper end of said valve shaft (5) is provided with magnetic lock (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289534.1A CN102788161B (en) | 2012-08-15 | 2012-08-15 | Direct-reading static balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289534.1A CN102788161B (en) | 2012-08-15 | 2012-08-15 | Direct-reading static balance valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788161A true CN102788161A (en) | 2012-11-21 |
| CN102788161B CN102788161B (en) | 2015-02-25 |
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ID=47153664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210289534.1A Active CN102788161B (en) | 2012-08-15 | 2012-08-15 | Direct-reading static balance valve |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6435191A (en) * | 1987-07-29 | 1989-02-06 | Aisin Seiki | Flow control valve |
| CN1310306A (en) * | 2001-04-03 | 2001-08-29 | 中国石化胜利油田有限公司采油工艺研究院 | High pressure liquid valve and its intelligent monitoring system |
| CN1601163A (en) * | 2004-09-30 | 2005-03-30 | 刘克勤 | Self force type flow control valve in using small membrane |
| CN2931994Y (en) * | 2006-04-25 | 2007-08-08 | 刘克勤 | Self-operated flow control valve having flow scale indicating and locking function |
| CN102297270A (en) * | 2011-07-29 | 2011-12-28 | 浙江菲达环保科技股份有限公司 | Novel flow control valve |
| CN202790866U (en) * | 2012-08-15 | 2013-03-13 | 山西建工申华暖通设备有限公司 | Direct-reading static balance valve |
-
2012
- 2012-08-15 CN CN201210289534.1A patent/CN102788161B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6435191A (en) * | 1987-07-29 | 1989-02-06 | Aisin Seiki | Flow control valve |
| CN1310306A (en) * | 2001-04-03 | 2001-08-29 | 中国石化胜利油田有限公司采油工艺研究院 | High pressure liquid valve and its intelligent monitoring system |
| CN1601163A (en) * | 2004-09-30 | 2005-03-30 | 刘克勤 | Self force type flow control valve in using small membrane |
| CN2931994Y (en) * | 2006-04-25 | 2007-08-08 | 刘克勤 | Self-operated flow control valve having flow scale indicating and locking function |
| CN102297270A (en) * | 2011-07-29 | 2011-12-28 | 浙江菲达环保科技股份有限公司 | Novel flow control valve |
| CN202790866U (en) * | 2012-08-15 | 2013-03-13 | 山西建工申华暖通设备有限公司 | Direct-reading static balance valve |
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| Publication number | Publication date |
|---|---|
| CN102788161B (en) | 2015-02-25 |
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