CN107702288A - A kind of electric heating air humidifying controlling method and system - Google Patents
A kind of electric heating air humidifying controlling method and system Download PDFInfo
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- CN107702288A CN107702288A CN201710934570.1A CN201710934570A CN107702288A CN 107702288 A CN107702288 A CN 107702288A CN 201710934570 A CN201710934570 A CN 201710934570A CN 107702288 A CN107702288 A CN 107702288A
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Abstract
The present invention relates to air wetting technical field, specifically discloses a kind of electric heating air humidifying controlling method and system, the described method comprises the following steps：Blowing device air outlet dew point is detected, calculates the difference DELTA T1 of the dew point and air outlet dew point setting value；The water temperature of humidifier water tank is detected, calculates the difference DELTA T2 of the water temperature and water temperature setting value；Output quantity according to Δ T1 and Δ T2 by PID arithmetic acquisition to humidifier SCR, the power output of humidifier is controlled according to the humidifier SCR of acquisition output quantity.According to blowing device air outlet dew point and the difference of air outlet dew point setting value, and the difference of the water temperature of humidifier water tank and the water temperature setting value of humidifier water tank obtains humidifier SCR output quantity, the power output of humidifier is controlled according to the humidifier SCR of acquisition output quantity, humidifier will not be made to be constantly in high-power state, electric energy is saved, it is cost-effective；The dew point of air, the accurate difference of measured value are measured using dew point transducer simultaneously.
Description
Technical field
The present invention relates to air wetting technical field, more particularly to a kind of electric heating air humidifying controlling method and system.
Background technology
In industrial production, many products are higher to requirements such as the air humidity of job shop, temperature.Aerial temperature and humidity be with
The change in season and change, required air is all that the blowing device of air-conditioning system is sent into interior.It is right in air-conditioning system
Air wetting is generally all the electric heat type humidifier used.
Generally, electric heat type humidifier at humidification initial stage, it is necessary to which the water of normal temperature is heated to boiling point by a period of time, in this process
Middle water vapour output is slow, if air humidity is too low, the product quality of production may be made unqualified, cause economic loss,
And in humidification, electric heater can only can waste substantial amounts of electric energy with capacity operation.
Usual air-conditioning system is to detect air humidity using air humidity monitor, but be substantially the air of detection
Relative humidity, because relative air humidity is changed with the temperature of air and the change of pressure, air humidity is caused to be supervised
Error can be had by surveying the air humidity measured by instrument.
Therefore, need a kind of electric heating air humidifying controlling method of good performance badly and system is asked with solving above-mentioned technology
Topic.
The content of the invention
It is an object of the invention to propose a kind of electric heating air humidifying controlling method and system, to solve air wetting
Humidifier is constantly in full power state to air wetting in journey, wastes electric energy；The problem of error be present in the air humidity measured.
To use following technical scheme up to this purpose, the present invention：
A kind of electric heating air humidifying controlling method, comprises the following steps：
Blowing device air outlet dew point is detected, calculates the difference DELTA T1 of the dew point and air outlet dew point setting value；
The water temperature of humidifier water tank is detected, calculates the difference DELTA of the water temperature and the water temperature setting value in humidifier water tank
T2；
Obtained according to Δ T1 and Δ T2 by PID arithmetic to humidifier controllable silicon (SCR, SiliconControlled
Rectifier output quantity)；
The power output of humidifier is controlled according to the humidifier SCR of acquisition output quantity.
According to the difference of blowing device air outlet dew point and air outlet dew point setting value, and the water temperature of humidifier water tank with
The difference of the water temperature setting value of humidifier water tank obtains humidifier SCR output quantity, according to the humidifier SCR of acquisition output quantity
The power output of humidifier is controlled, humidifier will not be made to be constantly in high-power state, saves electric energy, it is cost-effective；Make simultaneously
The dew point of air, the accurate difference of measured value are measured with dew point transducer.
Preferably, the output quantity for obtaining humidifier SCR comprises the following steps：
S100, Δ T1 operation pid algorithms are calculated and obtain the output quantity P1 to humidifier SCR；
S200, Δ T2 operation pid algorithms are calculated and obtain the output quantity P2 to humidifier SCR；
S300, judge whether P1 is more than P2, if so, P1 then is transferred into humidifier SCR；If it is not, then perform S400；
S400, judge whether P1 is equal to P2, if so, then humidifier SCR remain stationary state output；If it is not, then P2 is transmitted
Give humidifier SCR, control humidifier SCR output.
Preferably, PLC is preset with the maximum of T d1 and minimum value Td2 of air inlet dew point setting range, wherein
Td2 is more than or equal to air outlet dew point setting value；According to blowing device air inlet Dew-point Measurement Value Td and Td1, Td2 comparative result
To control the start and stop of humidifier.
Preferably, control humidifier start and stop comprise the following steps：
T100, detection blowing device air inlet dew point Td, and feed back to PLC；
T200, judge whether Td is more than Td1, if so, then closing humidifier；If it is not, then perform step T300；
T300, judge whether Td is more than Td2, if so, then humidifier switch keeping original state；If it is not, then open humidifier.
A kind of electric heating air humidification system, including：
Humidifier, it is electrically connected with the PLC, is provided with and the PLC in the water tank of the humidifier
The temperature sensor of electrical connection；
First dew point transducer, it is arranged on blowing device air inlet, and is electrically connected with the PLC；
Second dew point transducer, it is arranged on blowing device air outlet, and is electrically connected with the PLC.
Preferably, the water tank of the humidifier is automatically replenished for mechanical float ball valve.
Beneficial effects of the present invention are：
According to the difference of blowing device air outlet dew point and air outlet dew point setting value, and the water temperature of humidifier water tank with
The difference of the water temperature setting value of humidifier water tank obtains humidifier SCR output quantity, according to the humidifier SCR of acquisition output quantity
The power output of humidifier is controlled, humidifier will not be made to be constantly in high-power state, saves electric energy, it is cost-effective；Make simultaneously
The dew point of air, the accurate difference of measured value are measured with dew point transducer.
Brief description of the drawings
Fig. 1 is electric heating air humidifying controlling method schematic diagram of the present invention.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Present embodiment discloses a kind of electric heating air humidification system, including：Humidifier, the first dew point transducer and second
Dew point transducer.Humidifier is electrically connected with PLC, and the temperature electrically connected with PLC is provided with humidifier water tank and is passed
Sensor, temperature sensor is used to detect the water temperature in water tank, and feeds back to PLC.First dew point transducer is arranged on and sent
Wind devices air inlet, and electrically connected with PLC, the first dew point transducer is used for the sky for detecting blowing device air inlet
Gas dew point, and feed back to PLC.
Compared according to the dew point of measured air inlet and setting range, PLC controls the start and stop of humidifier.Specifically
, when the dew point for measuring air inlet is higher than the maximum of setting range, now air need not humidify, and close humidifier；When
The dew point for measuring air inlet is less than the minimum value of setting range, and now air needs to humidify, and opens humidifier；If measure air intake
Dew point at mouthful is in setting range, the switch keeping original state of humidifier.By the dew point of air inlet and setting range ratio
Compared with rather than a setting value compare and can prevent the phenomenon of the humidifier start and stop always when humidifier temperature change is little from occurring,
So as to add the service life of humidifier switch.
Second dew point transducer is arranged on blowing device air outlet, and is electrically connected with the PLC, and the second dew point passes
Sensor is used to detect the air dew point of blowing device air outlet, and feeds back to PLC, according to measured air outlet dew point and
Setting value compares, PLC control humidifier SCR output quantity.
Specifically, when measured air outlet dew point is less than setting value, humidifier SCR output quantity is tuned up, that is, tunes up and adds
The power output of wet device, the water temperature of humidifier water tank is raised, increase speed caused by vapor；When measured air outlet dew point
During higher than setting value, humidifier SCR output quantity is turned down, that is, turn the power output of humidifier down, make the water temperature of humidifier water tank
Reduce, reduce speed caused by vapor；When measured air outlet dew point is equal to setting value, then humidifier SCR remains stationary
State exports, i.e., the power output of wet device is constant.
The present embodiment also discloses a kind of electric heating air humidifying controlling method, and step is as follows：
The start-up and shut-down control process of humidifier：
After T100, humidification system are opened, the first dew point transducer detection blowing device air inlet dew point Td, and feed back to
PLC；
T200, PLC judge whether Td is more than air inlet dew point setting range maximum of T d1, add if so, then closing
Wet device；If it is not, then perform T300；
T300, PLC judge whether Td is more than air inlet dew point setting range minimum value Td2；If so, then humidifier
Switch keeping original state；If it is not, then open humidifier.
The start and stop of humidifier are automatically controlled, humidifier can be timely opened to air wetting, also can when air does not humidify
Timely close and save electric energy, it is cost-effective；By the dew point of air inlet compared with setting range rather than a setting value ratio
Compared with that can prevent the phenomenon of the humidifier start and stop always when humidifier temperature change is little from occurring, so as to add humidifier switch
Service life.
Air wetting control process after humidifier unlatching：
S100, the second dew point transducer detection blowing device air outlet dew point, and PLC is fed back to, PLC
Blowing device air outlet dew point and the difference DELTA T1 of air outlet dew point setting value are calculated, Δ T1 is run pid algorithm by PLC
Calculated and obtain the output quantity P1 to humidifier SCR；
S200, temperature sensor detection humidifier water tank water temperature, and PLC is fed back to, PLC calculates institute
The difference DELTA T2 of water temperature and the water temperature setting value in humidifier water tank is stated, PLC is calculated Δ T2 operation pid algorithms
And obtain the output quantity P2 to humidifier SCR；
S300, judge whether P1 is more than P2, if so, then at this time, it may be necessary to increase the amount that humidifier produces steam, i.e. increasing adds
P1 is transferred to humidifier SCR, control humidifier SCR output, tunes up humidifier by the power output of wet device, PLC
Power output；If it is not, then perform S400；
S400, judge whether P1 is equal to P2, if so, then humidifier SCR remain stationary state output；If it is not, then at this time, it may be necessary to
Reduce the amount that humidifier produces steam, that is, reduce the power output of humidifier, P2 is transferred to humidifier SCR by PLC, is controlled
Humidifier SCR processed output, turn the power output of humidifier down；
Wherein, Td2 is more than or equal to air outlet dew point setting value.
According to the difference of blowing device air outlet dew point and air outlet dew point setting value, and the water temperature of humidifier water tank with
The difference of the water temperature setting value of humidifier water tank obtains humidifier SCR output quantity, according to the humidifier SCR of acquisition output quantity
The power output of humidifier is controlled, humidifier will not be made to be constantly in high-power state, saves electric energy, it is cost-effective；Use dew
Point sensor measures the dew point of air, the accurate difference of measured value.
Applicant states that the present invention has carried out exemplary description by above-described embodiment, it is clear that present invention specific implementation
It is not subject to the restrictions described above, as long as employing changing for the various unsubstantialities of design and the technical scheme progress of the present invention
Enter, or it is not improved the design of the present invention and technical scheme are directly applied into other occasions, the equal protection models in the present invention
Within enclosing.
Claims (7)
1. a kind of electric heating air humidifying controlling method, it is characterised in that comprise the following steps：
Blowing device air outlet dew point is detected, calculates the difference DELTA T1 of the dew point and air outlet dew point setting value；
The water temperature of humidifier water tank is detected, calculates the difference DELTA T2 of the water temperature and the water temperature setting value in humidifier water tank；
Humidifier SCR output quantity is obtained by PID arithmetic according to Δ T1 and Δ T2；
The power output of humidifier is controlled according to the humidifier SCR of acquisition output quantity.
2. electric heating air humidifying controlling method according to claim 1, it is characterised in that obtain the defeated of humidifier SCR
Output comprises the following steps：
S100, Δ T1 operation pid algorithms are calculated and obtain the output quantity P1 to humidifier SCR；
S200, Δ T2 operation pid algorithms are calculated and obtain the output quantity P2 to humidifier SCR；
S300, judge whether P1 is more than P2, if so, P1 then is transferred into humidifier SCR；If it is not, then perform S400；
S400, judge whether P1 is equal to P2, if so, then humidifier SCR remain stationary state output；Add if it is not, being then transferred to P2
Wet device SCR, control humidifier SCR output.
3. electric heating air humidifying controlling method according to claim 1 or 2, it is characterised in that PLC is preset with
The maximum of T d1 and minimum value Td2 of air inlet dew point setting range, wherein Td2 are more than or equal to air outlet dew point setting value；According to
Blowing device air inlet Dew-point Measurement Value Td and Td1, Td2 comparative result controls the start and stop of humidifier.
4. electric heating air humidifying controlling method according to claim 3, it is characterised in that control humidifier start and stop include
Following steps：
T100, detection blowing device air inlet dew point Td, and feed back to PLC；
T200, judge whether Td is more than Td1, if so, then closing humidifier；If it is not, then perform step T300；
T300, judge whether Td is more than Td2, if so, then humidifier switch keeping original state；If it is not, then open humidifier.
5. a kind of electric heating air humidification system, it is characterised in that the electric heating air humidification system uses such as claim
Electric heating air humidifying controlling method described in any one of 1-4.
6. electric heating air humidification system according to claim 5, it is characterised in that including：
Humidifier, it is electrically connected with the PLC, is provided with the water tank of the humidifier and is electrically connected with the PLC
The temperature sensor connect；
First dew point transducer, it is arranged on blowing device air inlet, and is electrically connected with the PLC；
Second dew point transducer, it is arranged on blowing device air outlet, and is electrically connected with the PLC.
7. electric heating air humidification system according to claim 6, it is characterised in that the water tank of the humidifier is machinery
Formula ball-cock assembly is automatically replenished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710934570.1A CN107702288A (en) | 2017-10-10 | 2017-10-10 | A kind of electric heating air humidifying controlling method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710934570.1A CN107702288A (en) | 2017-10-10 | 2017-10-10 | A kind of electric heating air humidifying controlling method and system |
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| CN201710934570.1A Pending CN107702288A (en) | 2017-10-10 | 2017-10-10 | A kind of electric heating air humidifying controlling method and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085201A (en) * | 2018-09-12 | 2018-12-25 | 南京信息工程大学 | A kind of ultra-low humidity dew point hygrometer and its temprature control method |
| CN109595734A (en) * | 2018-12-10 | 2019-04-09 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN109612035A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN110645680A (en) * | 2019-10-10 | 2020-01-03 | 南京天加环境科技有限公司 | Humidity control method for constant-temperature and constant-humidity air conditioning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210020A (en) * | 1997-06-17 | 1999-03-10 | 菲舍尔和佩克尔有限公司 | Respiratory humidification system |
| CN104896681A (en) * | 2015-06-30 | 2015-09-09 | 广东美的暖通设备有限公司 | Control method of machine room air conditioner humidifier and machine room air conditioner humidifier |
| JP2016044915A (en) * | 2014-08-25 | 2016-04-04 | 中部電力株式会社 | Vaporization type humidifier and operation method thereof |
| US10094579B2 (en) * | 2012-03-07 | 2018-10-09 | Aermist Llc | Evaporative HVAC apparatus |
-
2017
- 2017-10-10 CN CN201710934570.1A patent/CN107702288A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210020A (en) * | 1997-06-17 | 1999-03-10 | 菲舍尔和佩克尔有限公司 | Respiratory humidification system |
| US10094579B2 (en) * | 2012-03-07 | 2018-10-09 | Aermist Llc | Evaporative HVAC apparatus |
| JP2016044915A (en) * | 2014-08-25 | 2016-04-04 | 中部電力株式会社 | Vaporization type humidifier and operation method thereof |
| CN104896681A (en) * | 2015-06-30 | 2015-09-09 | 广东美的暖通设备有限公司 | Control method of machine room air conditioner humidifier and machine room air conditioner humidifier |
Non-Patent Citations (1)
| Title |
|---|
| 李成玉: "《船舶辅机》", 31 December 2006 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085201A (en) * | 2018-09-12 | 2018-12-25 | 南京信息工程大学 | A kind of ultra-low humidity dew point hygrometer and its temprature control method |
| CN109085201B (en) * | 2018-09-12 | 2023-09-15 | 南京信息工程大学 | Ultralow humidity dew point meter and temperature control method thereof |
| CN109595734A (en) * | 2018-12-10 | 2019-04-09 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN109612035A (en) * | 2018-12-10 | 2019-04-12 | 广东美的制冷设备有限公司 | Control method, device and the fresh air system of fresh air system |
| CN110645680A (en) * | 2019-10-10 | 2020-01-03 | 南京天加环境科技有限公司 | Humidity control method for constant-temperature and constant-humidity air conditioning system |
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Application publication date: 20180216 |