CN109237115A - Proportioning valve working range adaptive regulation method and gas heater - Google Patents
Proportioning valve working range adaptive regulation method and gas heater Download PDFInfo
- Publication number
- CN109237115A CN109237115A CN201710557809.8A CN201710557809A CN109237115A CN 109237115 A CN109237115 A CN 109237115A CN 201710557809 A CN201710557809 A CN 201710557809A CN 109237115 A CN109237115 A CN 109237115A
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- proportioning valve
- operating mode
- maximum number
- error
- small size
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Classifications
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- 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
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
- G05B13/042—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators in which a parameter or coefficient is automatically adjusted to optimise the performance
Abstract
The invention discloses a kind of proportioning valve working range adaptive regulation method and gas heaters, the described method comprises the following steps: (1), booting are powered on, into shaping modes；(2), error judgment step, including most small size operating mode error judgment and the judgement of maximum number operating mode, (3) calculate proportioning valve control signal PWM adjustable range C, C=B-A；(4), N part segmentations are carried out to adjustable range C, each adjusts unit C*1/N and correspond to the 1/N aperture of proportioning valve, and aperture is 1 when proportioning valve standard-sized sheet, and wherein N is the positive integer greater than 1.Proportioning valve not in the normal range only is judged manually to be debugged again by proportioning valve adjusting method of the invention, human cost can have been greatly saved, secondly, by the way that proportioning valve control signal PWM value under most small size operating mode and maximum number operating mode is calculated, the section of two values is split to obtain ratio valve opening minimal adjustment unit, so that degree of regulation is more accurate.
Description
Technical field
The present invention relates to a kind of valve recombination lead-acid technique fields, specifically, being that be related to a kind of proportioning valve working range adaptive
Adjusting method and gas heater.
Background technique
Existing gas heater, because the corresponding current value of aperture that proportioning valve needs has a maximum and minimum value,
Proportioning valve electric current needs to work within this range, and production line is entirely manually to adjust potentiometer to correct minimax at present
Value.Production efficiency is relatively low, influences productive temp, and it is big in addition to manually adjust application condition.
Summary of the invention
The present invention manually adjusts potentiometer, production efficiency ratio to solve existing proportional valve for gas combustion water heater adjusting completely
Lower technical problem is proposed a kind of proportioning valve working range adaptive regulation method, can be adjusted with automatic adaptive, is solved
The above problem.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme:
A kind of proportioning valve working range adaptive regulation method, comprising the following steps:
(1), booting is powered on, into shaping modes；
(2), error judgment step, including most small size operating mode error judgment and the judgement of maximum number operating mode, wherein minimum
Number operating mode error judgment includes:
It controls proportioning valve and enters most small size operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value A；
The corresponding sampled voltage Vmin of calculated value A, judge sampled voltage Vmin whether be located at nominal error range intervals (amin,
Bmin in), if so, otherwise executing maximum number operating mode error judgment is judged as most small size operating mode error fault,
Stop adjusting, report an error；
Maximum number operating mode error judgment includes:
Control proportioning valve enters maximum number operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value B；
The corresponding sampled voltage Vmax of calculated value B, judge sampled voltage Vmax whether be located at nominal error range intervals (amax,
Bmax in), if so, thening follow the steps (3), otherwise, it is judged as maximum number operating mode error fault, stops adjusting, be reported
It is wrong；
(3), proportioning valve control signal PWM adjustable range C, C=B-A are calculated；
(4), N parts of segmentations are carried out to adjustable range C, each adjusts the 1/N aperture that unit C*1/N corresponds to proportioning valve, proportioning valve
Aperture is 1 when standard-sized sheet, and wherein N is the positive integer greater than 1.
Further, it in step (1), powers on and shaping modes is entered by key or toggle switch after being switched on.
Further, in step (2), control proportioning valve into most small size operating mode refer to be burned to minimum load institute it is right
The ratio valve opening answered；
Control proportioning valve, which enters maximum number operating mode and refers to, will be burned to ratio valve opening corresponding to peak load.
It further, further include missing most small size operating mode error fault and maximum number operating mode before step (2)
The step of poor failure is encoded shows corresponding coding in step (2) when there is above-mentioned failure, prompts to enter and adjust manually
Section mode.
Further, in step (2), when being judged as most small size operating mode error fault, judge sampled voltage Vmin
With nominal error range intervals (amin, bmin) compared to being super large or extra small, while judgment result displays being exported, then into
Enter the most small size manual debugging mode of operating mode error, wherein if Vmin > bmin belongs to super large, if Vmin < amin belongs to
It is extra small.
Further, in step (2), after the most small size manual debugging mode of operating mode error of entrance, debugging is electric manually
Position device, manually will be electric if sampled voltage Vmin is extra small if sampled voltage Vmin super large, manually turns potentiometer resistance down
Potentiometer resistance tunes up, and the potentiometer resistance Voltage Feedback after adjusting accordingly adjusts proportioning valve by linear scale to single-chip microcontroller
Signal PWM value A is controlled, until the corresponding sampled voltage of value A is located in nominal error range intervals (amin, bmin), is then returned
Return step (3) and step (4).
Further, in step (2), when being judged as maximum number operating mode error fault, judge sampled voltage Vmax
With nominal error range intervals (amax, bmax) compared to being super large or extra small, while judgment result displays being exported, then into
Enter the manual debugging mode of maximum number operating mode error, wherein if Vmax > bmax belongs to super large, if Vmin < amax belongs to
It is extra small.
Further, in step (2), into after the manual debugging mode of maximum number operating mode error, debugging is electric manually
Position device, manually will be electric if sampled voltage Vmax is extra small if sampled voltage Vmax super large, manually turns potentiometer resistance down
Potentiometer resistance tunes up, and the potentiometer resistance Voltage Feedback after adjusting accordingly adjusts proportioning valve by linear scale to single-chip microcontroller
Signal PWM value B is controlled, until the corresponding sampled voltage of value B is located in nominal error range intervals (amax, bmax), is then returned
Return step (3) and step (4).
Based on above-mentioned proportioning valve working range adaptive regulation method, the present invention proposes a kind of gas and hot water simultaneously
Device, including the described in any item proportioning valve working range adaptive regulation methods in front.
Compared with prior art, the advantages and positive effects of the present invention are: proportioning valve working range of the invention is adaptive
Adjusting method firstly, control proportioning valve enters most small size operating mode and maximum number operating mode respectively, and acquires under each mode
The proportioning valve control signal PWM value that single-chip microcontroller accordingly exports judges the PWM value whether in normal range, if it is just
In normal range, i.e. holding current setting, without manually debugging, this method can will not be in normal range (NR)
Interior proportioning valve judges manually to be debugged again, and proportioning valve originally in the normal range is not necessarily to manual debugging,
Human cost can be greatly saved, secondly, by the way that ratio under most small size operating mode and maximum number operating mode is calculated
The section of two values is split to obtain ratio valve opening minimal adjustment unit, so that degree of regulation is more by valve control signal PWM value
Add accurate.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of embodiment flow chart of proportioning valve working range adaptive regulation method proposed by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The control of its aperture, ratio are realized by the current value that control inputs to proportioning valve based on existing gas heater
Current value corresponding to each aperture that valve can be adjusted has a maximum and minimum value, when certain aperture is arrived in adjusting, needs
Control proportioning valve electric current works in the current value range corresponding to the aperture, since current production line entirely manually adjusts
Potentiometer corrects the maximum current value and minimum current value of proportioning valve, there is a problem of that production efficiency is relatively low, the present invention mentions
Go out a kind of proportioning valve working range adaptive regulation method, takes full advantage of the maximum current value and minimum of a part of proportioning valve
Current value is inherently located within the scope of normal interval, and there is no need to do additional adjusting, required to do is to just for maximum electricity
Flow valuve and minimum current value are not at the proportioning valve within the scope of normal interval and are adjusted, proportioning valve work of the invention
Range adaptive regulation method first determines whether out that the maximum current value of which proportioning valve and minimum current value are inherently located at normally
In interval range and which proportioning valve is not within the scope of normal interval, same for the proportioning valve being located in normal range (NR)
When obtain its maximum current value and minimum current value, obtain current value section, by the current value section carry out N part divide, in turn
The corresponding relationship of available ratio valve regulation unit and current value adjustment unit is conducive to improve degree of regulation.For not having
Proportioning valve in normal range (NR) just carries out prompt into manually adjusting, in the following, this will be described in detail with a specific embodiment
The proportioning valve working range adaptive regulation method of invention.
Embodiment one
The present embodiment proposes a kind of proportioning valve working range adaptive regulation method, as shown in Figure 1, comprising the following steps:
S1, booting is powered on, into shaping modes；
S2, error judgment step, including most small size operating mode error judgment and the judgement of maximum number operating mode, wherein minimum
Number operating mode error judgment includes:
It controls proportioning valve and enters most small size operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value A；
The corresponding sampled voltage Vmin of calculated value A, judge sampled voltage Vmin whether be located at nominal error range intervals (amin,
Bmin in), if so, otherwise executing maximum number operating mode error judgment is judged as most small size operating mode error fault,
Stop adjusting, report an error；
Maximum number operating mode error judgment includes:
Control proportioning valve enters maximum number operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value B；
The corresponding sampled voltage Vmax of calculated value B, judge sampled voltage Vmax whether be located at nominal error range intervals (amax,
Bmax in), if so, thening follow the steps S3, otherwise, it is judged as maximum number operating mode error fault, stops adjusting, be reported
It is wrong；
S3, proportioning valve control signal PWM adjustable range C, C=B-A are calculated；
Since the electric current and its aperture of crossing proportioning valve are proportional, the corresponding proportional valve control of most small size operating mode
Signal PWM value A namely the smallest proportioning valve control signal PWM value, conversely, the corresponding proportional valve control letter of maximum number operating mode
Number PWM value B namely maximum proportioning valve control signal PWM value, the difference of the two namely the control range area of proportioning valve control signal
Between.
S4, N parts of segmentations are carried out to adjustable range C, each adjusts the 1/N aperture that unit C*1/N corresponds to proportioning valve, ratio
Aperture is 1 when valve standard-sized sheet, and wherein N is the positive integer greater than 1.N can according to the actual operation capabilities setting of single-chip microcontroller, for example,
There is 255 single-chip microcontrollers for operational capability, 255 can be set by N.
The proportioning valve working range adaptive regulation method of the present embodiment, aperture presence is more in actual operation for proportioning valve
It is a, this method without carrying out judgement adjusting to electric current corresponding to each aperture, only to maximum opening and minimum aperture (namely
Both ends aperture) corresponding to electric current be adjusted, firstly, respectively control proportioning valve enter most small size operating mode and maximum number
Operating mode, the aperture of proportioning valve is minimum under most small size operating mode, and the aperture of proportioning valve is maximum under maximum number operating mode, and
The proportioning valve control signal PWM value that single-chip microcontroller under each mode accordingly exports is acquired, judges the PWM value whether in normal range
Interior, if it is in normal range, i.e. holding current setting, without manually debugging, this method can be with
Proportioning valve not in the normal range is judged manually to be debugged again, and proportioning valve originally in the normal range
Without manual debugging, human cost can be greatly saved, secondly, by the way that most small size operating mode and maximum number work is calculated
The section of two values is split to obtain ratio valve opening minimal adjustment unit, make by proportioning valve control signal PWM value under operation mode
It is more accurate to obtain degree of regulation.
As a preferred embodiment, in step S1, powers on and adjusting is entered by key or toggle switch after booting
Mode.Shaping modes are only applicable to open under adjustment state, different when control logic is from normal use, and therefore, proportioning valve is silent
Recognizing be use pattern, and specially setting is needed just to can enter shaping modes.
Wherein, since proportioning valve is for controlling air inflow, opening size and air inflow size are positively correlated, in step S2, control
Proportioning valve processed refers into most small size operating mode is burned to ratio valve opening corresponding to minimum load；Corresponding ratio at this time
Example valve control signal PWM value A namely the smallest proportioning valve control signal PWM value.
Similarly, control proportioning valve, which enters maximum number operating mode and refers to, will be burned to proportioning valve corresponding to peak load
Aperture.Corresponding proportioning valve control signal PWM value B namely maximum proportioning valve control signal PWM value at this time.
System not only judges to be out of order, it is also necessary to it shown to prompt commissioning staff, for convenience display output,
It further include the step for encoding most small size operating mode error fault and maximum number operating mode error fault before step S2
Suddenly, it in step S2 when there is above-mentioned failure, shows corresponding coding, prompts to enter manual adjustment mode.Only in code displaying
Hold succinctly, to the of less demanding of display screen, is conducive to save commissioning device cost, commissioning staff, which slightly trains, can understand coding
Corresponding failure.
If a value is not in a range intervals, there are two kinds of possibility, namely the maximum value greater than the range intervals
Or the minimum value less than the range intervals, for this method, when being judged as most small size operating mode error fault,
That is, the corresponding sampled voltage Vmin of most small size operating mode proportioning valve control signal PWM value A is not at normal range (NR) section,
The relationship in sampled voltage Vmin and normal range (NR) section determines how to be adjusted, therefore, minimum when being judged as in step S2
When number operating mode error fault, judge sampled voltage Vmin and nominal error range intervals (amin, bmin) compared to being super large
Or it is extra small, while judgment result displays being exported, subsequently into the most small size manual debugging mode of operating mode error, wherein
If Vmin > bmin belongs to super large, if Vmin < amin belong to it is extra small.
In step S2, after the most small size manual debugging mode of operating mode error of entrance, potentiometer is debugged manually, if sampling
Voltage Vmin super large, then manually turn potentiometer resistance down, if sampled voltage Vmin is extra small, manually by potentiometer resistance tune
Greatly, and the potentiometer resistance Voltage Feedback after adjusting is to single-chip microcontroller, and proportioning valve control signal PWM is accordingly adjusted by linear scale
Value A, until to be located at nominal error range intervals (amin, bmin) interior for the corresponding sampled voltage of value A, then return step S3 and step
Rapid S4.
As a same reason, in step S2, when being judged as maximum number operating mode error fault, judge sampled voltage Vmax
With nominal error range intervals (amax, bmax) compared to being super large or extra small, while judgment result displays being exported, then into
Enter the manual debugging mode of maximum number operating mode error, wherein if Vmax > bmax belongs to super large, if Vmin < amax belongs to
It is extra small.
In step S2, into after the manual debugging mode of maximum number operating mode error, potentiometer is debugged manually, if sampling
Voltage Vmax super large, then manually turn potentiometer resistance down, if sampled voltage Vmax is extra small, manually by potentiometer resistance tune
Greatly, and the potentiometer resistance Voltage Feedback after adjusting is to single-chip microcontroller, and proportioning valve control signal PWM is accordingly adjusted by linear scale
Value B, until to be located at nominal error range intervals (amax, bmax) interior for the corresponding sampled voltage of value B, then return step S3 and step
Rapid S4.
This proportioning valve working range adaptive regulation method only needs seldom artificial participation to adjust, even if moreover, occurring
The part for manually participating in adjusting is needed, this method is known that by judging the relationship of sampled voltage and normal range (NR)
How adjusting personnel are adjusted, and adjusting personnel carry out trial judgement without tuning up or turning down respectively, have further saved its work
It measures, improves debugging efficiency.
Embodiment two
The present embodiment proposes a kind of gas heater, this gas heater includes at least proportioning valve, the adjusting side of the proportioning valve
Method includes proportioning valve working range adaptive regulation method described in any one of embodiment one, and for details, reference can be made to one institutes of embodiment
It records, then this is not repeated them here.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made within the essential scope of the present invention, also should belong to this hair
Bright protection scope.
Claims (9)
1. a kind of proportioning valve working range adaptive regulation method, which comprises the following steps:
(1), booting is powered on, into shaping modes；
(2), error judgment step, including most small size operating mode error judgment and the judgement of maximum number operating mode, wherein minimum
Number operating mode error judgment includes:
It controls proportioning valve and enters most small size operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value A；
The corresponding sampled voltage Vmin of calculated value A, judge sampled voltage Vmin whether be located at nominal error range intervals (amin,
Bmin in), if so, otherwise executing maximum number operating mode error judgment is judged as most small size operating mode error fault,
Stop adjusting, report an error；
Maximum number operating mode error judgment includes:
Control proportioning valve enters maximum number operating mode, the proportioning valve control signal of acquisition current operation mode single-chip microcontroller output
PWM value B；
The corresponding sampled voltage Vmax of calculated value B, judge sampled voltage Vmax whether be located at nominal error range intervals (amax,
Bmax in), if so, thening follow the steps (3), otherwise, it is judged as maximum number operating mode error fault, stops adjusting, be reported
It is wrong；
(3), proportioning valve control signal PWM adjustable range C, C=B-A are calculated；
(4), N parts of segmentations are carried out to adjustable range C, each adjusts the 1/N aperture that unit C*1/N corresponds to proportioning valve, proportioning valve
Aperture is 1 when standard-sized sheet, and wherein N is the positive integer greater than 1.
2. proportioning valve working range adaptive regulation method according to claim 1, which is characterized in that
In step (1), powers on and shaping modes are entered by key or toggle switch after being switched on.
3. proportioning valve working range adaptive regulation method according to claim 1, which is characterized in that in step (2), control
Proportioning valve processed refers into most small size operating mode is burned to ratio valve opening corresponding to minimum load；
Control proportioning valve, which enters maximum number operating mode and refers to, will be burned to ratio valve opening corresponding to peak load.
4. proportioning valve working range adaptive regulation method according to claim 1, which is characterized in that before step (2)
Further include the steps that encoding most small size operating mode error fault and maximum number operating mode error fault, step (2)
In when there is above-mentioned failure, show corresponding coding, prompt to enter manual adjustment mode.
5. proportioning valve working range adaptive regulation method according to claim 1-4, which is characterized in that step
(2) in, when being judged as most small size operating mode error fault, judge sampled voltage Vmin and nominal error range intervals
(amin, bmin) exports judgment result displays compared to being super large or extra small, misses subsequently into most small size operating mode
The manual debugging mode of difference, wherein if Vmin > bmin belongs to super large, if Vmin < amin belong to it is extra small.
6. proportioning valve working range adaptive regulation method according to claim 5, which is characterized in that in step (2), into
After entering the most small size manual debugging mode of operating mode error, potentiometer is debugged manually, if sampled voltage Vmin super large, manually
Potentiometer resistance is turned down, if sampled voltage Vmin is extra small, is manually tuned up potentiometer resistance, and the potentiometer after adjusting
Resistive voltage feeds back to single-chip microcontroller, and proportioning valve control signal PWM value A is accordingly adjusted by linear scale, until the corresponding sampling of value A
Voltage is located in nominal error range intervals (amin, bmin), then return step (3) and step (4).
7. proportioning valve working range adaptive regulation method according to claim 1-4, which is characterized in that step
(2) in, when being judged as maximum number operating mode error fault, judge sampled voltage Vmax and nominal error range intervals
(amax, bmax) exports judgment result displays compared to being super large or extra small, misses subsequently into maximum number operating mode
The manual debugging mode of difference, wherein if Vmax > bmax belongs to super large, if Vmin < amax belong to it is extra small.
8. proportioning valve working range adaptive regulation method according to claim 7, which is characterized in that in step (2), into
After entering the manual debugging mode of maximum number operating mode error, potentiometer is debugged manually, if sampled voltage Vmax super large, manually
Potentiometer resistance is turned down, if sampled voltage Vmax is extra small, is manually tuned up potentiometer resistance, and the potentiometer after adjusting
Resistive voltage feeds back to single-chip microcontroller, and proportioning valve control signal PWM value B is accordingly adjusted by linear scale, until the corresponding sampling of value B
Voltage is located in nominal error range intervals (amax, bmax), then return step (3) and step (4).
9. a kind of gas heater, which is characterized in that adaptive including the described in any item proportioning valve working ranges of claim 1-8
Answer adjusting method.
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| CN201710557809.8A CN109237115B (en) | 2017-07-10 | 2017-07-10 | Adaptive adjustment method for working range of proportional valve and gas water heater |
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| CN115045852A (en) * | 2021-03-09 | 2022-09-13 | 山东朗进科技股份有限公司 | Control method and control system for air conditioner air valve of railway vehicle |
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Also Published As
| Publication number | Publication date |
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| CN109237115B (en) | 2022-01-18 |
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