CN201330874Y - Electronic-type dynamic pressure-difference balancing valve - Google Patents
Electronic-type dynamic pressure-difference balancing valve Download PDFInfo
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- CN201330874Y CN201330874Y CNU2008201711689U CN200820171168U CN201330874Y CN 201330874 Y CN201330874 Y CN 201330874Y CN U2008201711689 U CNU2008201711689 U CN U2008201711689U CN 200820171168 U CN200820171168 U CN 200820171168U CN 201330874 Y CN201330874 Y CN 201330874Y
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Abstract
The utility model relates to a valve and aims to provide an electronic-type dynamic pressure-difference balancing valve used in the transmission and distribution process of the water system for balancing the pressure difference. The valve comprises an electric regulating valve, a high-voltage terminal pressure sensor, an intelligent controller, an actuator and a low-voltage terminal pressure sensor, wherein, the high-voltage terminal pressure sensor, the actuator and the low-voltage terminal pressure sensor are connected with the intelligent controller through cables; and the high-voltage terminal pressure sensor and the low-voltage terminal pressure sensor are respectively mounted at the current inflowing hole and the current outflowing hole at two ends of the valve body of the electric regulating valve. The utility model has the following advantages: the setting range of the pressure difference of the valve is wide, and the value setting is convenient and accurate; the actual operational control of the pressure difference is accurate; the service life is long; the maintenance is convenient; the adoption of the pressure sensors enables the pressure tapping manner to be very flexible; the adjustment on the setting values of the pressure difference can be conducted at any time, and the flexible and fast adjustment of the pressure difference is realized; and after the intelligent controller is adopted, the electronic-type dynamic pressure-difference balancing valve possesses various expanding functions.
Description
Technical field
The utility model relates to a kind of valve, a kind of specifically electronic type dynamic differential pressure balancing valve that is applied to pressure balance in the water system transmission ﹠ distribution process.
Background technique
Ubiquity the hydraulic misadjustment phenomenon in the water system transmission and distribution network, and the pipe network water force unbalance easily causes the waste of system's energy and the increase and the transmission ﹠ distribution effect of equipment operation noise to reduce.Generally adopt energy waste and hydraulic misadjustment phenomenon in means such as the transient equiliblium modulating valve the is installed solution water system transmission ﹠ distribution process at present, but in the relatively large system of unsteady flow amount transmission ﹠ distribution and pipeline pressure drop, there is very big problem in the control accuracy of transient equiliblium modulating valve, simultaneously easy influencing each other and cause hydraulic misadjustment very.Therefore differential pressure control valve becomes the most common means that addresses these problems, and it mainly contains two functions: the pressure reduction of 1, stablizing controlled object two ends; 2, make between each loop separately, reduce influencing each other between the modulating valve.Modulating valve can be realized stablizing, control accurately thereby make; Reduce modulating valve generating noise and balance and the debugging work of having simplified the water system transmission and distribution network.
The working principle of the mechanical type dynamic differential pressure balancing valve of widespread usage is very simple at present, when the pressure reduction DP=P1-P3 change at random of the two ends of controlled pipeline, utilize mechanical self-powering type pressure reduction control gear constant, perhaps utilize mechanical self-powering type pressure reduction control gear to guarantee equilibrium valve two ends pressure difference DP2=P2-P3 automatic constant by the pressure difference DP1=P1-P2 that changes the pipeline two ends by the pressure difference DP1=P1-P2 that the pressure difference DP2=P2-P3 that changes the differential pressure balancing valve two ends regulates controlled two ends automatically.
There are problems in the dynamic differential pressure balancing valve of realizing based on spring mechanical self-powering type principle, (1) mechanical type dynamic differential pressure balancing valve rated flow coefficient is generally less than normal, its water body resistance is very big, itself also is a very big energy waste point, does not play real energy conservation; (2) the pressure reduction adjustable extent is limited and adjust the very inconvenient and inaccuracy of pressure reduction is set; (3) do not have real pressure transducer measuring device, the actual motion precision is difficult to control, and especially each mechanical part is aging after long-time running, and control accuracy sharply descends; (4) there is problem and the easy fatigue damage of complex structure, particularly thin film membrane fatigue life in mechanical self-powering type principle; (5) can not carry out the automatic switchover of effective summer in winter pattern; (5) signals such as the node pressure of distributing system, pressure reduction can't be realized shortcomings such as the long-range setting of BA system and intelligent monitoring.
The present known electronic type dynamic differential pressure balancing valve of also not finding.This electronic type dynamic differential pressure balancing valve can be used for bypass and other pressure balance aspects, have the precision height, can long-range setting and characteristics such as monitoring, long service life.
The model utility content
Main purpose of the present utility model is to overcome deficiency of the prior art, provides a kind of and is used for realizing that water system transmission ﹠ distribution process improves the modulating valve control accuracy and makes independently electronic type dynamic differential pressure balancing valve of loop.
In order to solve the problems of the technologies described above, the electronic type dynamic differential pressure balancing valve that the utility model provides, comprise electric control valve, high voltage terminal pressure transducer, intelligent controller, final controlling element and low voltage terminal pressure transducer, high voltage terminal pressure transducer, final controlling element and low voltage terminal pressure transducer are connected to intelligent controller by cable, and high voltage terminal pressure transducer and low voltage terminal pressure transducer are installed on going into head piece and going out head piece of motorized adjustment valve body two ends respectively.
As a kind of improvement, described electric control valve is that angular stroke control valve or straight journey modulating valve are wherein a kind of.
As a kind of improvement, described final controlling element is that pneumatic actuator or electric actuator are wherein a kind of.
Its working principle is as follows:
(1) the transient equiliblium pressure differential resetting value Δ P at the controlled two ends of setting in intelligent controller 2
S
(2) intelligent controller 2 reads the differential pressure measurement value Δ P at controlled two ends by high voltage terminal pressure transducer 1 and low voltage terminal pressure transducer 5
C
(3) the controlled two ends transient equiliblium pressure differential resetting value Δ P of contrast in intelligent controller 2
SWith differential pressure measurement value Δ P
C, operation PID control program obtains the control valve opening x of unitization;
(4) intelligent controller 2 converts the control valve opening x of unitization to control signal by unit conversion, by final controlling element 3 control electric control valves 4, makes the transient equiliblium pressure differential resetting value Δ P at controlled two ends
SWith differential pressure measurement value Δ P
CEquate;
Advantage of the present utility model is:
(1) the pressure differential resetting scope is wide, and setting value is convenient, accurate.Setting pressure difference can arbitrarily set in the operating pressure differential scope, and adopts the mode of electronic type to set pressure difference, makes pressure differential resetting very accurate and convenient;
(2) actual motion control pressure reduction is accurate.In actual moving process, the mode of employing pressure transducer replacement conventional springs contrasts constantly to the pressure reduction at controlled two ends, makes the control pressure reduction of actual motion very accurate, and its precision depends on the pressure transducer grade of accuracy of employing;
(3) long service life, easy to maintenance.After adopting the generation information electronic technology to replace the part mechanical part, its reliability, grade of accuracy and life-span all tool be greatly improved.And detection, replacement of element to product when safeguarding are all very convenient;
(4) the mode pressure of employing pressure transducer makes ways of measure pressure very flexible.The electronic type dynamic differential pressure balancing valve can carry out pressure balance behind pressure balance before the valve, the valve, even can be self pressure balance;
(5) the pressure differential resetting value can be regulated constantly, and it is flexible, quick that pressure reduction is regulated;
(6) after having adopted intelligent controller 2, make the electronic type dynamic differential pressure balancing valve can have many expanded functions, for example telecontrol and monitoring, the storage of data etc.;
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to the accompanying drawings 1, will be described in detail the utility model below:
The utility model comprises high voltage terminal pressure transducer 1, intelligent controller 2, final controlling element 3, electric control valve 4, low voltage terminal pressure transducer 5, high voltage terminal pressure transducer 1, final controlling element 3 and low voltage terminal pressure transducer 5 are connected to intelligent controller 2 by cable, and high voltage terminal pressure transducer 1 and low voltage terminal pressure transducer 5 are installed on going into head piece and going out head piece of controlled pressure reduction two ends respectively.
Valve intelligent controller 2 is embedded in or downloads a kind of " dynamic differential pressure Balance Control program ".Utilize this program, intelligent controller 2 both can adopt the universal controller that has senior mathematical function computing function and can realize pid control algorithm, also can be the intelligent controller product of special exploitation.
Electronic type dynamic differential pressure balancing valve implementation method step of the present utility model is as follows:
(1) the transient equiliblium pressure differential resetting value Δ P at the controlled two ends of setting in intelligent controller 2
S
(2) intelligent controller 2 reads the differential pressure measurement value Δ P at controlled two ends by high voltage terminal pressure transducer 1 and low voltage terminal pressure transducer 5
C
(3) the controlled two ends transient equiliblium pressure differential resetting value Δ P of contrast in intelligent controller 2
SWith differential pressure measurement value Δ P
C, operation PID control program obtains the control valve opening x of unitization;
(4) intelligent controller 2 converts the control valve opening x of unitization to control signal by unit conversion, by final controlling element 3 control electric control valves 4, makes the transient equiliblium pressure differential resetting value Δ P at controlled two ends
SWith differential pressure measurement value Δ P
CEquate;
When reality is used, only need to change the program of intelligent controller 2, can also realize featured functions such as pressure release, pressure warning.
Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (3)
1, a kind of electronic type dynamic differential pressure balancing valve, comprise electric control valve, it is characterized in that, also comprise high voltage terminal pressure transducer, intelligent controller, final controlling element and low voltage terminal pressure transducer, high voltage terminal pressure transducer, final controlling element and low voltage terminal pressure transducer are connected to intelligent controller by cable, and high voltage terminal pressure transducer and low voltage terminal pressure transducer are installed on going into head piece and going out head piece of motorized adjustment valve body two ends respectively.
2, electronic type dynamic differential pressure balancing valve according to claim 1 is characterized in that, described electric control valve is that angular stroke control valve or straight journey modulating valve are wherein a kind of.
3, electronic type dynamic differential pressure balancing valve according to claim 1 is characterized in that, described final controlling element is that pneumatic actuator or electric actuator are wherein a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201711689U CN201330874Y (en) | 2008-12-23 | 2008-12-23 | Electronic-type dynamic pressure-difference balancing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201711689U CN201330874Y (en) | 2008-12-23 | 2008-12-23 | Electronic-type dynamic pressure-difference balancing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330874Y true CN201330874Y (en) | 2009-10-21 |
Family
ID=41224254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201711689U Expired - Lifetime CN201330874Y (en) | 2008-12-23 | 2008-12-23 | Electronic-type dynamic pressure-difference balancing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330874Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697830A (en) * | 2016-04-13 | 2016-06-22 | 安徽康成工业产品设计有限公司 | Gas pressure medium integration rotator for industrial pressure reducing valve |
| CN107061844A (en) * | 2016-12-15 | 2017-08-18 | 青岛精锐机械制造有限公司 | Intelligent fluid homeostasis control device |
| US11092354B2 (en) | 2019-06-20 | 2021-08-17 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11149976B2 (en) | 2019-06-20 | 2021-10-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11391480B2 (en) | 2019-12-04 | 2022-07-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for freeze protection of a coil in an HVAC system |
| US11624524B2 (en) | 2019-12-30 | 2023-04-11 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for expedited flow sensor calibration |
-
2008
- 2008-12-23 CN CNU2008201711689U patent/CN201330874Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697830A (en) * | 2016-04-13 | 2016-06-22 | 安徽康成工业产品设计有限公司 | Gas pressure medium integration rotator for industrial pressure reducing valve |
| CN107061844A (en) * | 2016-12-15 | 2017-08-18 | 青岛精锐机械制造有限公司 | Intelligent fluid homeostasis control device |
| US11092354B2 (en) | 2019-06-20 | 2021-08-17 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11149976B2 (en) | 2019-06-20 | 2021-10-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11644215B2 (en) | 2019-06-20 | 2023-05-09 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for flow control in an HVAC system |
| US11391480B2 (en) | 2019-12-04 | 2022-07-19 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for freeze protection of a coil in an HVAC system |
| US11624524B2 (en) | 2019-12-30 | 2023-04-11 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for expedited flow sensor calibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |