CN107152551B - A kind of Regulation Control method and Regulation Control device - Google Patents
A kind of Regulation Control method and Regulation Control device Download PDFInfo
- Publication number
- CN107152551B CN107152551B CN201710331428.8A CN201710331428A CN107152551B CN 107152551 B CN107152551 B CN 107152551B CN 201710331428 A CN201710331428 A CN 201710331428A CN 107152551 B CN107152551 B CN 107152551B
- Authority
- CN
- China
- Prior art keywords
- regulator valve
- pressure regulator
- value
- pressure
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a kind of Regulation Control method and Regulation Control devices, proportioning valve and pressure regulator valve are added for adjusting, method includes: to add proportioning valve described in gas flow adjusting according to default add, and record multiple default practical opening values for adding the corresponding pressure regulator valve of gas flow；Calculate the multiple default theoretical opening value for adding the corresponding pressure regulator valve of gas flow；Calculate the aperture upper limit of current pressure regulator valve and the aperture lower limit of current pressure regulator valve；Obtain the actual pressure value of current pressure regulator valve；Coarse adjustment is carried out to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range, the then theoretical opening value of the opening value of adjusting pressure regulator valve to current pressure regulator valve；The pressure value for obtaining current pressure regulator valve is finely tuned in the pressure value to setting processing range of pressure regulator valve.Regulation Control method provided by the invention and Regulation Control device can quickly add the aperture control of pressure regulator valve in the corresponding open range of flow, reduce and adjust at any time, guaranteeing degree of regulation.
Description
Technical field
The present invention relates to add gas flow control field more particularly to a kind of Regulation Control method and Regulation Control dress
It sets.
Background technique
In water treatment technology, it is wherein important step that ozone, which adds, and the bleed pressure of supply is down to generation by pressure regulator valve
The operating pressure of device demand generates ozone after generator electrion；It is added further according to flow of inlet water with what the rate that adds determined
Gas demand, adjusting add ratio valve opening, adjust the gas flow added, meet production requirement.In actual production process,
Amount of inlet water constantly changes, demand meeting corresponding change, thus adds proportioning valve and need corresponding adjustment aperture, and adjusting adds gas
Body flow.And proportioning valve follows the process of adjustment, the gas in the pipeline of self-regulated pressure valve rear end forms compression or releases, and occurs
Pressure rise or reduction, and pressure regulator valve is needed to increase or reduce aperture accordingly, to guarantee the balance of system.
Original control program is that PID closed loop pressure is adjusted and the flow PID closed loop adjusting in pressure limit, this controlling party
Method basically reaches the demand of system control in control, but limits because its adjusting is followed by pressure, therefore there are the following problems:
Degree of regulation is not high, and in adjustment process, because technique inflow constantly changes, rear end adds proportioning valve and is in
In dynamic regulation, thus the pressure of pressure regulator valve rear end pipeline is continuously increased or reduces.Since the compression ratio of gas is big, pressure regulator valve exists
In adjustment process, if technique water yield changes greatly, control lag will cause, it is too big that pressure crosses modulation.
Influence system continuous operation, when pressure is crossed, modulation is too big, when pressure value is more than the alarm pressure of generator, occurs
Device can trigger alarm and shut down, stop ozone and produce, or when hypotony is close to pressure alarm lower limit, will also result in generation
The too low alarm of the flow of device stops ozone production.
System adjustment speed is slow, in adjustment process, similarly adds ratio valve opening, in the case where pressure increases,
Its flow also increases, on the contrary, then flow reduces.In each adjustment process, adds flowmeter and be required to wait pressure regulator valve by pressure
It adjusts to setting range, then carries out PID adjusting, thus its entire adjustment speed is greatly affected, and technique water flow constantly becomes
Change, adjust and constantly repeat, the reliability of whole system stable operation reduces.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of Regulation Control method and Regulation Controls
Device can solve not high degree of regulation present in existing Regulation Control method, the operation of influence system and system adjustment speed
Slow problem.
The purpose of the present invention is implemented with the following technical solutions:
A kind of Regulation Control method adds proportioning valve and pressure regulator valve for adjusting, comprising:
Proportioning valve is added described in gas flow adjusting according to default add, and records multiple default gas flows that add and corresponds to
Pressure regulator valve practical opening value；
Calculate the multiple default theoretical opening value for adding the corresponding pressure regulator valve of gas flow；
Opening for current pressure regulator valve is calculated according to the theoretical opening value of the practical opening value of the pressure regulator valve and the pressure regulator valve
Spend the aperture lower limit of the upper limit and current pressure regulator valve；
Obtain the actual pressure value of current pressure regulator valve；
According to the aperture upper limit of the current pressure regulator valve, the reality of the aperture lower limit of current pressure regulator valve and current pressure regulator valve
Pressure value carries out coarse adjustment to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range, the then aperture of adjusting pressure regulator valve
It is worth the theoretical opening value of current pressure regulator valve；
The pressure value for obtaining current pressure regulator valve is finely tuned in the pressure value to setting processing range of pressure regulator valve.
Preferably, described according to the aperture upper limit of the current pressure regulator valve, the aperture lower limit of current pressure regulator valve and current
The actual pressure value of pressure regulator valve carries out coarse adjustment to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range, then adjusts
The theoretical opening value of the opening value of pressure regulator valve to current pressure regulator valve includes:
When the actual pressure value of the pressure regulator valve is less than minimum setting value, the opening value of pressure regulator valve is adjusted to current pressure regulation
The aperture upper limit of valve, and the aperture upper limit of pressure regulator valve and the aperture of pressure regulator valve are recalculated according to the currently practical gas flow that adds
Lower limit, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve；
When the actual pressure value of the pressure regulator valve is greater than maximum set value, the opening value of pressure regulator valve is adjusted to current pressure regulation
The aperture lower limit of valve, and the aperture upper limit of pressure regulator valve and the aperture of pressure regulator valve are recalculated according to the currently practical gas flow that adds
Lower limit, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve.
Preferably, the multiple default theoretical opening value for adding the corresponding pressure regulator valve of gas flow of the calculating includes:
According toThe theoretical aperture of pressure regulator valve is calculated, wherein Y is flow, QmaxMost for valve
Big flow, R are valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y, LmaxFor pressure regulator valve maximum opening hundred
Divide ratio.
Preferably, described to be calculated currently according to the practical opening value of the pressure regulator valve and the theoretical opening value of the pressure regulator valve
The aperture upper limit of pressure regulator valve and the aperture lower limit of current pressure regulator valve include:
Calculate the multiple default theoretical aperture for adding the corresponding pressure regulator valve of gas flow practical opening value and pressure regulator valve
The difference of value；
Obtain maximum forward deviation and maximum negative sense deviation；
The sum of a times of maximum forward deviation and the theoretical opening value of current pressure regulator valve are recorded as opening for current pressure regulator valve
The upper limit is spent, a times of difference of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation is recorded as opening for current pressure regulator valve
Spend lower limit, wherein a is greater than 1.
Preferably, the pressure value for obtaining current pressure regulator valve, finely tunes in the pressure value of pressure regulator valve to setting processing range and includes:
When the pressure value of the pressure regulator valve is located at the minimum setting value and adjusts between deadband lower limit, pressure regulator valve is adjusted
Opening value be PID calculated value；
When the pressure value of the pressure regulator valve, which is located at, to be adjusted between deadband upper limit and the maximum set value, pressure regulator valve is adjusted
Opening value be PID calculated value.
The invention further relates to a kind of Regulation Control devices, add proportioning valve and pressure regulator valve for adjusting, comprising: the first record
Module, the first computing module, the second computing module, first obtain module, coarse adjustment module and fine tuning module；
First logging modle for adding proportioning valve described in gas flow adjusting according to default add, and records more
A default practical opening value for adding the corresponding pressure regulator valve of gas flow；
First computing module is opened for calculating the multiple default theory for adding the corresponding pressure regulator valve of gas flow
Angle value；
Second computing module, for according to the practical opening value of the pressure regulator valve and the theoretical aperture of the pressure regulator valve
Value calculates the aperture upper limit of current pressure regulator valve and the aperture lower limit of current pressure regulator valve；
Described first obtains module, for obtaining the actual pressure value of current pressure regulator valve；
The coarse adjustment module, for according to the aperture lower limit of the aperture upper limit of the current pressure regulator valve, current pressure regulator valve with
And the actual pressure value of current pressure regulator valve carries out coarse adjustment to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range, so
The opening value of pressure regulator valve is adjusted afterwards to the theoretical opening value of current pressure regulator valve；
The fine tuning module finely tunes the pressure value of pressure regulator valve to setting technique for obtaining the pressure value of current pressure regulator valve
In range.
Preferably, the coarse adjustment module includes: the first adjustment module and the second adjustment module；
First adjustment module, for adjusting and adjusting when the actual pressure value of the pressure regulator valve is less than minimum setting value
The opening value of pressure valve and recalculates pressure regulator valve according to the currently practical gas flow that adds to the aperture upper limit of current pressure regulator valve
The aperture lower limit of the aperture upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve；
Second adjustment module, for adjusting and adjusting when the actual pressure value of the pressure regulator valve is greater than maximum set value
The opening value of pressure valve and recalculates pressure regulator valve according to the currently practical gas flow that adds to the aperture lower limit of current pressure regulator valve
The aperture lower limit of the aperture upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve.
Preferably, first computing module includes third computing module；
The third computing module is used for basisThe theoretical aperture of pressure regulator valve is calculated,
Middle Y is flow, QmaxFor valve maximum stream flow, R is valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y,
LmaxFor pressure regulator valve maximum opening percentage.
Preferably, second computing module includes: the 4th computing module, the second acquisition module and the second logging modle；
4th computing module adds the practical aperture of the corresponding pressure regulator valve of gas flow for calculating the multiple preset
The difference of value and the theoretical opening value of pressure regulator valve；
Described second obtains module, for obtaining maximum forward deviation and maximum negative sense deviation；
Second logging modle, for by a times of maximum forward deviation with the theoretical opening value of current pressure regulator valve it
With the aperture upper limit for being recorded as current pressure regulator valve, by a times of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation it
Difference is recorded as the aperture lower limit of current pressure regulator valve, wherein a is greater than 1.
Preferably, the fine tuning module includes: third adjustment module and the 4th adjustment module；
The third adjustment module is located at the minimum setting value for the pressure value when the pressure regulator valve and adjusts dead zone
When between lower limit, the opening value for adjusting pressure regulator valve is PID calculated value；
4th adjustment module is located at adjusting deadband upper limit for the pressure value when the pressure regulator valve and sets with the maximum
When between definite value, the opening value for adjusting pressure regulator valve is PID calculated value.
Compared with prior art, the beneficial effects of the present invention are: pass through the practical opening value of pressure regulator valve and the reason of pressure regulator valve
Quickly the aperture control of pressure regulator valve is being added in the corresponding open range of flow by opening value, is reducing and adjusts at any time；Root
Proportioning valve is added according to gas flow adjusting is added, the adjusting for adding proportioning valve is not limited by other conditions, to guarantee pressure regulator valve
The precision of adjusting, it is ensured that pressure controlled overshoot amplitude substantially remains within the scope of generator demand pressure, avoids pressure follow
Caused generator alarm halting problem not in time.
Detailed description of the invention
Fig. 1 is the typical process flow figure using the system of Regulation Control method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of Regulation Control method provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of Regulation Control device provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, the typical process flow for the control system that ozone adds in water treatment technology, in the embodiment of the present invention
Regulation Control method for adjust add proportioning valve 1 and pressure regulator valve 2, add the rear end that proportioning valve 1 is located at pressure regulator valve 2, with guarantor
The balance of card system.
As shown in Fig. 2, Regulation Control method provided in an embodiment of the present invention, comprising:
Step S101: proportioning valve is added described in gas flow adjusting according to default add, and records multiple preset and adds gas
The practical opening value of the corresponding pressure regulator valve of body flow.
Specifically, being added according to the gas flow that the determination of system flow of inlet water need to add according to gas flow adjusting is added
Proportioning valve 1.Choose maximum add gas flow and it is minimum add between gas flow it is multiple it is preset add gas flow values,
Wherein, the preset selection for adding gas flow values increases according to equal percentage and chooses；It is pre- until meeting that adjusting adds proportioning valve 1
If add gas flow, record the practical opening value of corresponding pressure regulator valve 2.For example, it is 10 that system minimum, which adds gas flow,
It is 50 that maximum, which adds gas flow, adjusting add proportioning valve 1 to add gas flow values be respectively 10,14,19.6,27.4,
38.4, record each adds the opening value of the corresponding pressure regulator valve 2 of gas flow values.
Step S102: the multiple default theoretical opening value for adding the corresponding pressure regulator valve of gas flow is calculated.
Specifically, according toThe theoretical aperture of pressure regulator valve 2 is calculated, wherein Y is flow, Qmax
For valve maximum stream flow, R is valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y, LmaxMost for pressure regulator valve
Big percent travel.Wherein, Qmax、LmaxAnd R is the intrinsic parameter of pressure regulator valve, when system pressure balances, flow keeps flat
Weighing apparatus, according to the flow Y of system feedback, calculates the opening value l of corresponding pressure regulator valve 2.
Step S103: current adjust is calculated according to the theoretical opening value of the practical opening value of the pressure regulator valve and the pressure regulator valve
The aperture upper limit of pressure valve and the aperture lower limit of current pressure regulator valve.
The influence of the factors such as tested constant-pressure, crushing in practical application, by the aperture for the pressure regulator valve 2 that theoretical calculation obtains
There are errors in value and actual motion measurement, keep system pressure balance, and the corresponding practical opening value of preset flow is pressure regulator valve 2
Practical opening value.
Specifically, the step the following steps are included:
Step S1031: it calculates the multiple preset and adds the practical opening value of the corresponding pressure regulator valve of gas flow and pressure regulator valve
Theoretical opening value difference；
Step S1032: maximum forward deviation and maximum negative sense deviation are obtained；
Step S1033: the sum of a times of maximum forward deviation and the theoretical opening value of current pressure regulator valve are recorded as currently
A times of difference of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation is recorded as currently by the aperture upper limit of pressure regulator valve
The aperture lower limit of pressure regulator valve, wherein a is greater than 1, it is preferred that taking a is 1.2.
For example, it is assumed that when adding gas flow values and being respectively 10,14,19.6,27.4,38.4, the reason of corresponding pressure regulator valve 2
It is respectively 10%, 20%, 30%, 40%, 50% by opening value, is followed in pressure regulator valve 2 in the adjustment process for adding proportioning valve 1,
The practical opening value of pressure regulator valve 2 is respectively 7%, 19%, 35%, 42%, 51%.It calculates and each adds the corresponding tune of gas flow
The deviation of pressure valve theoretical value and pressure regulator valve actual value, maximum forward deviation are the practical opening value point bigger than theoretical opening value
Difference maximum value, it can be seen that when flow is 19.6, the theoretical opening value of pressure regulator valve is bigger by 5% than the practical opening value of pressure regulator valve,
It is maximum forward deviation；Maximum negative sense deviation is the difference maximum value of the practical opening value point smaller than theoretical opening value, can
To find out, when flow is 10, the theoretical opening value of pressure regulator valve is smaller by 3% than the practical opening value of pressure regulator valve, is maximum negative sense deviation
Value.Add gas flow it is continually changing during, it is assumed that the theoretical opening value of current pressure regulator valve is 45%, then 45% with
The sum of 1.2 times of 5%, i.e., 51% is recorded as the aperture upper limit of current pressure regulator valve；45% and 3% 1.2 times of difference, i.e., 41.4%
It is recorded as the aperture lower limit of current pressure regulator valve.In system operation, technique water flow constantly changes, and adds gas flow therewith
Variation, the theoretical opening value of pressure regulator valve are also constantly changing.
Step S104: the actual pressure value of current pressure regulator valve is obtained.
Step S105: according to the aperture upper limit of the current pressure regulator valve, the aperture lower limit and current tune of current pressure regulator valve
The actual pressure value of pressure valve carries out coarse adjustment to pressure regulator valve, and until the pressure value of pressure regulator valve is located in preset range, then adjusting is adjusted
Theoretical opening value of the opening value of pressure valve to current pressure regulator valve.
Specifically, the opening value for adjusting pressure regulator valve arrives when the actual pressure value of the pressure regulator valve is less than minimum setting value
The aperture upper limit of current pressure regulator valve, and according to the currently practical aperture upper limit and pressure regulation for adding gas flow and recalculating pressure regulator valve
The aperture lower limit of valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve, wherein minimum setting value can
Think hypotony alarm setting value；
When the actual pressure value of the pressure regulator valve is greater than maximum set value, the opening value of pressure regulator valve is adjusted to current pressure regulation
The aperture lower limit of valve, and the aperture upper limit of pressure regulator valve and the aperture of pressure regulator valve are recalculated according to the currently practical gas flow that adds
Lower limit, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve, wherein maximum set value can be pressure
Excessively high alarm setting value.
According to the opening value of the aperture lower limit of the aperture upper limit of current pressure regulator valve and pressure regulator valve adjustment 2, and constantly update tune
The aperture upper limit and aperture lower limit of pressure valve 2, so that pressure regulator valve 2 is rapidly completed constantly close to preset range in the pressure value of pressure regulator valve 2
Coarse adjustment.And proportioning valve 1 is added according to gas flow adjusting is added, the adjusting for adding proportioning valve 1 is not limited by other conditions, from
And guaranteeing the precision that pressure regulator valve 2 is adjusted, it is ensured that pressure controlled overshoot amplitude substantially remains within the scope of generator demand pressure,
Avoid pressure follow caused generator alarm halting problem not in time.
Step S106: obtaining the pressure value of current pressure regulator valve, finely tunes in the pressure value to setting processing range of pressure regulator valve.
Specifically, being adjusted when the pressure value of the pressure regulator valve is located at the minimum setting value and adjusts between deadband lower limit
The opening value for saving pressure regulator valve is PID calculated value；
When the pressure value of the pressure regulator valve, which is located at, to be adjusted between deadband upper limit and the maximum set value, pressure regulator valve is adjusted
Opening value be PID calculated value.
Wherein, the upper and lower bound for adjusting dead zone is respectively upper and lower bound in technique initialization pressure value error range,
When adjusting the pressure of pressure regulator valve 2 close in error range, PID (ratio, integral, differential) is carried out to the opening value of pressure regulator valve 2
Calculate, the final aperture for adjusting pressure regulator valve 2 make the pressure value of pressure regulator valve 2 be located at adjust deadband lower limit and adjust deadband upper limit it
Between, i.e., in the error range of pressure set points.To which the adjusting of pressure regulator valve 2 be rapidly completed, and it can guarantee the essence of pressure regulation valve regulation
Degree avoids pressure from crossing modulation and causes control lag to cause alarm greatly and shut down very much.
The embodiment of the present invention also provides a kind of Regulation Control device, as shown in figure 3, device include: the first logging modle 11,
First computing module 12, the second computing module 13, first obtain module 14, coarse adjustment module 15 and fine tuning module 16；
First logging modle 11, for according to add gas flow adjust described in add proportioning valve, and record multiple
The default practical opening value for adding the corresponding pressure regulator valve of gas flow；
First computing module 12, for calculating the multiple default theory for adding the corresponding pressure regulator valve of gas flow
Opening value；
Second computing module 13, for being opened according to the practical opening value of the pressure regulator valve and the theory of the pressure regulator valve
Angle value calculates the aperture upper limit of current pressure regulator valve and the aperture lower limit of current pressure regulator valve；
Described first obtains module 14, for obtaining the actual pressure value of current pressure regulator valve；
The coarse adjustment module 15, for the aperture lower limit according to the aperture upper limit of the current pressure regulator valve, current pressure regulator valve
And the actual pressure value of current pressure regulator valve carries out coarse adjustment to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range,
Then the opening value of pressure regulator valve is adjusted to the theoretical opening value of current pressure regulator valve；
The fine tuning module 16 finely tunes the pressure value of pressure regulator valve to setting work for obtaining the pressure value of current pressure regulator valve
Within the scope of skill.
Preferably, the coarse adjustment module 15 includes: the first adjustment module and the second adjustment module；
First adjustment module, for adjusting and adjusting when the actual pressure value of the pressure regulator valve is less than minimum setting value
The opening value of pressure valve and recalculates pressure regulator valve according to the currently practical gas flow that adds to the aperture upper limit of current pressure regulator valve
The aperture lower limit of the aperture upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve；
Second adjustment module, for adjusting and adjusting when the actual pressure value of the pressure regulator valve is greater than maximum set value
The opening value of pressure valve and recalculates pressure regulator valve according to the currently practical gas flow that adds to the aperture lower limit of current pressure regulator valve
The aperture lower limit of the aperture upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve.
Preferably, first computing module 12 includes third computing module；
The third computing module is used for basisThe theoretical aperture of pressure regulator valve is calculated,
Middle Y is flow, QmaxFor valve maximum stream flow, R is valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y,
LmaxFor pressure regulator valve maximum opening percentage.
Preferably, second computing module 13 includes: the 4th computing module, the second acquisition module and the second record mould
Block；
4th computing module adds the practical aperture of the corresponding pressure regulator valve of gas flow for calculating the multiple preset
The difference of value and the theoretical opening value of pressure regulator valve；
Described second obtains module, for obtaining maximum forward deviation and maximum negative sense deviation；
Second logging modle, for the theoretical opening value by 1.2 times of maximum forward deviation with current pressure regulator valve
The sum of be recorded as the aperture upper limit of current pressure regulator valve, by the 1.2 of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation
Difference again is recorded as the aperture lower limit of current pressure regulator valve.
Preferably, the fine tuning module 16 includes: third adjustment module and the 4th adjustment module；
The third adjustment module is located at the minimum setting value for the pressure value when the pressure regulator valve and adjusts dead zone
When between lower limit, the opening value for adjusting pressure regulator valve is PID calculated value；
4th adjustment module is located at adjusting deadband upper limit for the pressure value when the pressure regulator valve and sets with the maximum
When between definite value, the opening value for adjusting pressure regulator valve is PID calculated value.
The method in device and previous embodiment in the present embodiment be based on the same inventive concept under two aspect,
Front is described in detail method implementation process, so those skilled in the art can be according to foregoing description clearly
The structure and implementation process of the device in the present embodiment are solved, in order to illustrate the succinct of book, details are not described herein again.
For convenience of description, it is divided into various modules when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each module can be realized in the same or multiple software and or hardware when invention.
Regulation Control method provided in an embodiment of the present invention and Regulation Control device by the practical opening value of pressure regulator valve and
The theoretical opening value of pressure regulator valve is quickly adding the control of the aperture of pressure regulator valve in the corresponding open range of flow, reduce adjust with
At any time；Proportioning valve is added according to gas flow adjusting is added, the adjusting for adding proportioning valve is not limited by other conditions, to protect
Demonstrate,prove the precision of pressure regulation valve regulation, it is ensured that pressure controlled overshoot amplitude substantially remains within the scope of generator demand pressure, avoids
Pressure follow not in time caused by generator alarm halting problem.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (10)
1. a kind of Regulation Control method adds proportioning valve and pressure regulator valve for adjusting characterized by comprising
Proportioning valve is added described in gas flow adjusting according to default add, and records multiple preset and adds the corresponding tune of gas flow
The practical opening value of pressure valve；
Calculate the multiple default theoretical opening value for adding the corresponding pressure regulator valve of gas flow；
It is calculated in the aperture of current pressure regulator valve according to the theoretical opening value of the practical opening value of the pressure regulator valve and the pressure regulator valve
The aperture lower limit of limit and current pressure regulator valve；
Obtain the actual pressure value of current pressure regulator valve；
According to the actual pressure of the aperture upper limit of the current pressure regulator valve, the aperture lower limit of current pressure regulator valve and current pressure regulator valve
Value carries out coarse adjustment to pressure regulator valve, and until the pressure value of pressure regulator valve is located in preset range, the opening value for then adjusting pressure regulator valve is arrived
The theoretical opening value of current pressure regulator valve；
The pressure value for obtaining current pressure regulator valve is finely tuned in the pressure value to setting processing range of pressure regulator valve.
2. Regulation Control method according to claim 1, which is characterized in that the aperture according to the current pressure regulator valve
The actual pressure value of the upper limit, the aperture lower limit of current pressure regulator valve and current pressure regulator valve carries out coarse adjustment to pressure regulator valve, until pressure regulation
The pressure value of valve is located in preset range, and the theoretical opening value for then adjusting opening value to the current pressure regulator valve of pressure regulator valve includes:
When the actual pressure value of the pressure regulator valve is less than minimum setting value, the opening value of pressure regulator valve is adjusted to current pressure regulator valve
The aperture upper limit, and recalculated under the aperture upper limit of pressure regulator valve and the aperture of pressure regulator valve according to the currently practical gas flow that adds
Limit, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve；
When the actual pressure value of the pressure regulator valve is greater than maximum set value, the opening value of pressure regulator valve is adjusted to current pressure regulator valve
Aperture lower limit, and recalculated under the aperture upper limit of pressure regulator valve and the aperture of pressure regulator valve according to the currently practical gas flow that adds
Limit, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve.
3. Regulation Control method according to claim 1, which is characterized in that the multiple preset of the calculating adds gas
The theoretical opening value of the corresponding pressure regulator valve of flow includes:
According toThe theoretical aperture of pressure regulator valve is calculated, wherein Y is flow, QmaxFor valve max-flow
Amount, R are valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y, LmaxFor pressure regulator valve maximum opening percentage
Than.
4. Regulation Control method according to claim 3, which is characterized in that the practical aperture according to the pressure regulator valve
The theoretical opening value of value and the pressure regulator valve calculates the aperture upper limit of current pressure regulator valve and the aperture lower limit of current pressure regulator valve includes:
Calculate the multiple default theoretical opening value for adding the practical opening value of the corresponding pressure regulator valve of gas flow and pressure regulator valve
Difference；
Obtain maximum forward deviation and maximum negative sense deviation；
The sum of a times of maximum forward deviation and the theoretical opening value of current pressure regulator valve are recorded as in the aperture of current pressure regulator valve
A times of difference of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation is recorded as under the aperture of current pressure regulator valve by limit
Limit, wherein a is greater than 1.
5. Regulation Control method according to claim 2, which is characterized in that obtain the pressure value of current pressure regulator valve, finely tune
Include: in the pressure value of pressure regulator valve to setting processing range
When the pressure value of the pressure regulator valve is located at the minimum setting value and adjusts between deadband lower limit, opening for pressure regulator valve is adjusted
Angle value is PID calculated value；
When the pressure value of the pressure regulator valve, which is located at, to be adjusted between deadband upper limit and the maximum set value, opening for pressure regulator valve is adjusted
Angle value is PID calculated value.
6. a kind of Regulation Control device adds proportioning valve and pressure regulator valve for adjusting, including first obtains module and fine tuning module,
It is characterized by further comprising: the first logging modle, the first computing module, the second computing module and coarse adjustment module；
First logging modle for adding proportioning valve described in gas flow adjusting according to default add, and records multiple pre-
If adding the practical opening value of the corresponding pressure regulator valve of gas flow；
First computing module, for calculating the multiple default theoretical aperture for adding the corresponding pressure regulator valve of gas flow
Value；
Second computing module, based on according to the practical opening value of the pressure regulator valve and the theoretical opening value of the pressure regulator valve
Calculate the aperture upper limit of current pressure regulator valve and the aperture lower limit of current pressure regulator valve；
Described first obtains module, for obtaining the actual pressure value of current pressure regulator valve；
The coarse adjustment module, for according to the aperture upper limit of the current pressure regulator valve, the aperture lower limit of current pressure regulator valve and working as
The actual pressure value of preceding pressure regulator valve carries out coarse adjustment to pressure regulator valve, until the pressure value of pressure regulator valve is located in preset range, then adjusts
The opening value of pressure regulator valve is saved to the theoretical opening value of current pressure regulator valve；
The fine tuning module finely tunes the pressure value of pressure regulator valve to setting processing range for obtaining the pressure value of current pressure regulator valve
It is interior.
7. Regulation Control device according to claim 6, which is characterized in that the coarse adjustment module includes: the first adjusting mould
Block and the second adjustment module；
First adjustment module, for adjusting pressure regulator valve when the actual pressure value of the pressure regulator valve is less than minimum setting value
Opening value to current pressure regulator valve the aperture upper limit, and according to the currently practical aperture for adding gas flow and recalculating pressure regulator valve
The aperture lower limit of the upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve；
Second adjustment module, for adjusting pressure regulator valve when the actual pressure value of the pressure regulator valve is greater than maximum set value
Opening value to current pressure regulator valve aperture lower limit, and according to the currently practical aperture for adding gas flow and recalculating pressure regulator valve
The aperture lower limit of the upper limit and pressure regulator valve, re-adjustments pressure regulator valve are located in preset range until the pressure value of pressure regulator valve.
8. Regulation Control device according to claim 6, which is characterized in that first computing module includes that third calculates
Module；
The third computing module is used for basisThe theoretical aperture of pressure regulator valve is calculated, wherein Y
For flow, QmaxFor valve maximum stream flow, R is valve regulated ratio, the percentage for corresponding valve opening that l is flow when being Y, Lmax
For pressure regulator valve maximum opening percentage.
9. Regulation Control device according to claim 8, which is characterized in that second computing module includes: the 4th meter
Calculate module, the second acquisition module and the second logging modle；
4th computing module, for calculate it is the multiple it is default add the practical opening value of the corresponding pressure regulator valve of gas flow with
The difference of the theoretical opening value of pressure regulator valve；
Described second obtains module, for obtaining maximum forward deviation and maximum negative sense deviation；
Second logging modle, for remembering the sum of a times of maximum forward deviation and the theoretical opening value of current pressure regulator valve
Record is the aperture upper limit of current pressure regulator valve, and a times of difference of the theoretical opening value of current pressure regulator valve and maximum negative sense deviation is remembered
Record is the aperture lower limit of current pressure regulator valve, wherein a is greater than 1.
10. Regulation Control device according to claim 7, which is characterized in that the fine tuning module includes: that third adjusts mould
Block and the 4th adjustment module；
The third adjustment module is located at the minimum setting value for the pressure value when the pressure regulator valve and adjusts deadband lower limit
Between when, adjust pressure regulator valve opening value be PID calculated value；
4th adjustment module is located at for the pressure value when the pressure regulator valve and adjusts deadband upper limit and the maximum set value
Between when, adjust pressure regulator valve opening value be PID calculated value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331428.8A CN107152551B (en) | 2017-05-11 | 2017-05-11 | A kind of Regulation Control method and Regulation Control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331428.8A CN107152551B (en) | 2017-05-11 | 2017-05-11 | A kind of Regulation Control method and Regulation Control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152551A CN107152551A (en) | 2017-09-12 |
| CN107152551B true CN107152551B (en) | 2019-04-05 |
Family
ID=59792756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710331428.8A Active CN107152551B (en) | 2017-05-11 | 2017-05-11 | A kind of Regulation Control method and Regulation Control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152551B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6996289B2 (en) * | 2016-12-26 | 2022-01-17 | 株式会社島津製作所 | Valve device |
| CN108469848B (en) * | 2018-03-13 | 2024-04-12 | 上海齐耀动力技术有限公司 | Pressure control method and system based on electromagnetic valve group |
| CN110531794A (en) * | 2019-08-30 | 2019-12-03 | 北京北方华创微电子装备有限公司 | Fluid pressure control device and method, cleaning solution supplying mechanism |
| CN112695297B (en) * | 2020-11-24 | 2022-12-09 | 北京北方华创微电子装备有限公司 | Method for controlling chamber pressure in semiconductor process |
| CN113883910B (en) * | 2021-10-19 | 2023-05-16 | 攀钢集团西昌钢钒有限公司 | Method for controlling regulating valve by control system when throttle flowmeter is in dead zone |
| CN114415747B (en) * | 2021-12-21 | 2023-10-27 | 成都中科唯实仪器有限责任公司 | Pressure regulating method of vacuum regulating valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5053960A (en) * | 1987-05-29 | 1991-10-01 | J. I. Case Company | Electronic control system for powershift transmission with compensation for variation in supply voltage |
| DE60239482D1 (en) * | 2001-09-26 | 2011-04-28 | Kelsey Hayes Co | METHOD FOR AUTOMATICALLY CALIBRATING THE VALVE LINE IN PRESSURE CONTROL OF A PROPORTIONAL SEAT VALVE |
| CN102266630B (en) * | 2010-12-31 | 2014-10-01 | 北京谊安医疗***股份有限公司 | Breathing machine gas proportion control method and device |
| CN104567154B (en) * | 2014-12-26 | 2017-01-04 | 珠海格力电器股份有限公司 | Centrifugal refrigerating machines throttling control method |
| CN104565492A (en) * | 2014-12-30 | 2015-04-29 | 河南西瑞医疗电子技术有限公司 | Precise flow control method of proportional valve |
-
2017
- 2017-05-11 CN CN201710331428.8A patent/CN107152551B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107152551A (en) | 2017-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107152551B (en) | A kind of Regulation Control method and Regulation Control device | |
| CN110161841A (en) | A kind of feedforward-fuzzy PID control method suitable for temporarily rushing formula transonic wind tunnel | |
| CN103174471A (en) | Parameter-varying load optimization control method of thermal power generating unit | |
| CN103984234A (en) | Electro hydraulic servo system self-correction fuzzy PID control method | |
| CN109506028A (en) | A kind of quick servo antrol algorithm of pressure-regulating valve | |
| CN102392812B (en) | Surge control system of compressor unit | |
| CN104734588B (en) | A kind of biogas internal combustion engine generator group method for controlling number of revolution | |
| Silva et al. | On the stability and controller robustness of some popular PID tuning rules | |
| CN111664442B (en) | Desuperheating water control method, system and equipment based on heat value calculation and readable storage medium | |
| CN102929305A (en) | Variable-frequency speed adjustment technique-based Bang-Bang+PID (Piping and Instrument Diagram) constant pressure water supply closed-loop control method | |
| CN103576711B (en) | Based on the chemical reactor temperature-controlled process that quantitative one-parameter PID controls | |
| CN109298636A (en) | A kind of improved integral sliding mode control method | |
| CN104712378B (en) | Fired power generating unit main steam pressure closed loop energy-saving control method and system | |
| CN103294030A (en) | DCS (distributed control system) control method and SMITH controller | |
| Efheij et al. | Comparison of model predictive control and PID controller in real time process control system | |
| CN109213213A (en) | A kind of gas flow adjusting method | |
| US20120310375A1 (en) | A nonlinear intelligent pulse-controller | |
| Aravind et al. | Simulation based modeling and implementation of adaptive control technique for Non Linear process tank | |
| CN108762085A (en) | A kind of quick point-to-point motion control method of robust | |
| Singh et al. | Performance analysis of improving stability using tuned PID and Hybrid controllers | |
| Kurien et al. | Overview of different approaches of pid controller tuning | |
| CN108762078A (en) | A kind of design method of curvilinear path tracking control unit | |
| Liu | Design of flow control system based on expert PID | |
| Livinus et al. | Effects of pid controller on a closed loop feedback system | |
| CN205990913U (en) | There is control device in a kind of shield machine foam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |