CN100458295C - Hpid precision air-conditioning controlling method - Google Patents
Hpid precision air-conditioning controlling method Download PDFInfo
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- CN100458295C CN100458295C CNB2007100274656A CN200710027465A CN100458295C CN 100458295 C CN100458295 C CN 100458295C CN B2007100274656 A CNB2007100274656 A CN B2007100274656A CN 200710027465 A CN200710027465 A CN 200710027465A CN 100458295 C CN100458295 C CN 100458295C
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- controller
- hpid
- controlling value
- plc
- integral valve
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004378 air conditioning Methods 0.000 title description 9
- 238000004088 simulation Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a controlling method for the Hpid precise air condition. It selects a controller which can be the PLC programmable logic controller, the DDC directly digital controller or the singlechip controlling system, which are all set with the Ai simulated input, the Ao simulated output, the Di digital input and Do digital output interface. When the controller is input the Hpid operation formula and the controlling program, it compounds the temperature and the humidity of the environment to do the enthalpy of the Hpid formula, then it outputs the controlling value to the proportion integral valve, the converter and the air condition machine group. So it can control the start or opening of the proportion integral valve, the output frequency of the converter, the start or close of the main machine group precisely to improve the energy using efficiency and save the energy.
Description
Affiliated technical field
A kind of air conditioning control method involved in the present invention is specifically related to a kind of control method that is used for precision air conditioner.
Technical background
Traditional air-conditioning unit control method is by detecting the temperature of controlled environment, humidity, to detect the temperature of controlled environment then, the temperature of humidity and controlled environment, humidity compares, the unlatching of control ratio integral valve or aperture, the output frequency of control frequency converter, the main control system unit is opened or is closed, this control method can not be with the temperature of controlled environment, humidity combines and carries out computing, promptly can not pass through temperature, humidity is carried out the specific enthalpy computing, the output controlling value is given the air-conditioning unit, thereby can not be to the unlatching or the aperture of the proportional integral valve of air-conditioning unit, the output frequency of frequency converter, precision control is carried out in the unlatching of air-conditioning unit host groups or close, can not effectively improve utilization efficiency of energy, energy savings causes energy waste.
Summary of the invention
The purpose of the invention is to overcome above-mentioned defective in the prior art: providing a kind of can or close and carry out precision control the unlatching of the output frequency of the unlatching of the proportional integral valve of air-conditioning unit or aperture, frequency converter, main frame unit, can effectively improve utilization efficiency of energy, the Hpid precision air conditioner control method of energy savings.
For achieving the above object, technical scheme provided by the invention is as follows: a kind of Hpid precision air conditioner control method is provided, may further comprise the steps:
A, select a controller for use, this controller can be PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system, is provided with Ai analog input, Ao simulation output, the input of Di numeral and Do digital output interface on described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system;
B, write following operational formula at described controller:
T＝273.15+t
In(p
q，b)＝f(T)
In (p in the time of t=-100 ℃ ~ 0 ℃
Q, b)=C
1/ T+C
2+ C
3T+C
4T
2+ C
5T
3+ C
6T
4+ C
7In (T)
Wherein: C
1=-5674.5359 C
2=6.3925247 C
3=-0.9677843*10
-2
C
4＝0.62215701*10
-6 C
5＝0.20747825*10
-8
C
6＝-0.9484024*10
-12 C
7＝4.1635019
In (p in the time of t=0 ℃ ~ 200 ℃
Q, b)=C
8/ T+C
9+ C
10T+C
11T
2+ C
12T
3+ C
13In (T)
Wherein: C
8=-5800.2206 C
9=1.3914993 C
10=-0.04860239
C
11＝0.41764768*10
-4 C
12＝-0.14452093*10
-7 C
13＝6.5459673
￠＝p
q/p
q，b
d＝0.622p
q/(B-p
q)Kg/Kg
i
t＝1.01t+0.001d(2501+1.84t)KJ/KG
In the formula: p
qBe water in air vapor pressure p
Q, bIt is synthermal saturated steam partial pressure down
B is atmosphere partial pressure i
tIt is the specific enthalpy of humid air
In (p
Q, b) be p
Q, bNatural logrithm C
1~ C
13Be design factor
￠ is that relative humidity d is a water capacity
T is that absolute temperature t is a Celsius temperature
C, the input of the Ai analog input on the described controller, Di numeral is connected with temperature sensor, humidity sensor, with the simulation of the Ao on described PLC programmable logic controller (PLC), DDC direct digital controller or the single-chip computer control system export, the Do digital output interface is connected with proportional integral valve, frequency converter, main frame unit;
D, described controller are provided with the temperature t of setting
0, relative humidity ￠
0, described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system calculate i by described operational formula
tWith i
T0Value is with i
tWith i
T0Compare, export more than one Ao or Do controlling value, can control the unlatching or the aperture of proportional integral valve, the output frequency rate of control frequency converter, and the unlatching of main control system unit or close i
T0, i
tBe the specific enthalpy of setting humid air, ￠
0Be the relative humidity of setting.
Described controlling value is the Ao controlling value, and it is the standard analog signal of 0 ~ 10V, 2 ~ 10V or 4 ~ 20mA, is transported to the proportional integral valve, the unlatching of control ratio integral valve or aperture.
Described controlling value is the Ao controlling value, and it is the standard analog signal of 0 ~ 10V, 2 ~ 10V or 4 ~ 20mA, is transported to frequency converter, the output frequency of control frequency converter.
Described controlling value is the Do controlling value, and it is 1 or 0 data signal, is transported to the main frame unit, and the main control system unit is opened or closed.
The beneficial effect of Hpid precision air conditioner control method of the present invention is: combine by temperature, humidity with controlled environment and carry out computing, can carry out the specific enthalpy computing by temperature, humidity, the output controlling value is given proportional integral valve, frequency converter, air-conditioning unit, can Comparative Examples the unlatching of integral valve or aperture, frequency converter output frequency, main frame unit unlatching or close and carry out precision and control, can effectively improve utilization efficiency of energy, energy savings.
Below in conjunction with drawings and Examples Hpid precision air conditioner control method of the present invention is described further:
Figure of description
Fig. 1 is the control principle figure of Hpid precision air conditioner control method of the present invention.
The specific embodiment
Below the most preferred embodiment of Hpid precision air conditioner control method of the present invention, therefore do not limit protection scope of the present invention.
With reference to Fig. 1, a kind of Hpid precision air conditioner control method is provided, may further comprise the steps:
A, select a controller 1 for use, this controller 1 can be PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system, is provided with Ai analog input, Ao simulation output, the input of Di numeral and Do digital output interface on described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system;
B, write following operational formula at described controller 1:
T＝273.15+t
In(p
q，b)＝f(T)
In (p in the time of t=-100 ℃ ~ 0 ℃
Q, b)=C
1/ T+C
2+ C
3T+C
4T
2+ C
5T
3+ C
6T
4+ C
7In (T)
Wherein: C
1=-5674.5359 C
2=6.3925247 C
3=-0.9677843*10
-2
C
4＝0.62215701*10
-6 C
5＝0.20747825*10
-8
C
6＝-0.9484024*10
-12 C
7＝4.1635019
In (p in the time of t=0 ℃ ~ 200 ℃
Q, b)=C
8/ T+C
9+ C
10T+C
11T
2+ C
12T
3+ C
13In (T)
Wherein: C
8=-5800.2206 C
9=1.3914993 C
10=-0.04860239
C
11＝0.41764768*1
-4 C
12＝-0.14452093*10
-7 C
13＝6.5459673
￠＝p
q/p
q，b
d＝0.622p
q/(B-p
q)Kg/Kg
i
t＝1.01t+0.001d(2501+1.84t)KJ/KG
In the formula: p
qBe water in air vapor pressure p
Q, bIt is synthermal saturated steam partial pressure down
B is atmosphere partial pressure i
tIt is the specific enthalpy of humid air
In (p
Q, b) be p
Q, bNatural logrithm C
1~ C
13Be design factor
￠ is that relative humidity d is a water capacity
T is that absolute temperature t is a Celsius temperature
C, the input of the Ai analog input on the described controller 1, Di numeral is connected with temperature sensor 2, humidity sensor 3, with the simulation of the Ao on described PLC programmable logic controller (PLC), DDC direct digital controller or the single-chip computer control system export, the Do digital output interface is connected with proportional integral valve 4, frequency converter 5, main frame unit 6;
D, described controller 1 are provided with the temperature t of setting
0, relative humidity ￠
0, described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system calculate i by described operational formula
tWith i
T0Value is with i
tWith i
T0Compare, export more than one Ao or Do controlling value, can control the unlatching or the aperture of proportional integral valve 4, the output frequency rate of control frequency converter 5, and the unlatching of main control system unit 6 or close i
T0, i
tBe the specific enthalpy of setting humid air, ￠
0Be the relative humidity of setting.
Described controlling value is the Ao controlling value, and it is the standard analog signal of 0 ~ 10V, 2 ~ 10V or 4 ~ 20mA, is transported to proportional integral valve 4, the unlatching of control ratio integral valve 4 or aperture.
Described controlling value is the Ao controlling value, and it is the standard analog signal of 0 ~ 10V, 2 ~ 10V or 4 ~ 20mA, is transported to frequency converter 5, the output frequency of control frequency converter 5.
Described controlling value is the Do controlling value, and it is 1 or 0 data signal, is transported to main frame unit 6, and main control system unit 6 is opened or closed.
The Hpid computing promptly is based on the pid calculation of specific enthalpy.
Combine by temperature, humidity and to carry out computing controlled environment, can carry out the specific enthalpy computing by temperature, humidity, the output controlling value is given proportional integral valve 4, frequency converter 5, air-conditioning unit 6, can Comparative Examples the unlatching of integral valve 4 or aperture, frequency converter 5 output frequency, main frame unit 6 unlatching or close and carry out precision and control, can effectively improve utilization efficiency of energy, energy savings.
Claims (4)
1. a Hpid precision air conditioner control method is characterized in that, may further comprise the steps:
A, select a controller (1) for use, this controller is PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system, is provided with Ai analog input, Ao simulation output, the input of Di numeral and Do digital output interface on described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system;
B, write following operational formula at described controller (1):
T＝273.15+t
In(p
q，b)＝f(T)
In (p in the time of t=-100 ℃～0 ℃
Q, b)=C
1/ T+C
2+ C
3T+C
4T
2+ C
5T
3+ C
6T
4+ C
7In (T)
Wherein: C
1=-5674.5359 C
2=6.3925247 C
3=-0.9677843*10
-2
C
4＝0.62215701*10
-6 C
5＝0.20747825*10
-8
C
6＝-0.9484024*10
-12 C
7＝4.1635019
In (p in the time of t=0 ℃～200 ℃
Q, b)=C
8/ T+C
9+ C
10T+C
11T
2+ C
12T
3+ C
13In (T)
Wherein: C
8=-5800.2206 C
9=1.3914993 C
10=-0.04860239
C
11＝0.41764768*10
-4?C
12＝-0.14452093*10
-7 C
13＝6.5459673
￠＝p
q/p
q，b
d＝0.622p
q/(B-p
q)Kg/Kg
i
t＝1.01t+0.001d(2501+1.84t)KJ/KG
In the formula: p
qBe water in air vapor pressure p
Q, bIt is synthermal saturated steam partial pressure down
B is the atmosphere partial pressure
i
tBe the specific enthalpy i of humid air
T0It is the specific enthalpy of the humid air of setting
In (p
Q, b) be p
Q, bNatural logrithm C
1～C
13Be design factor
￠ is that relative humidity d is a water capacity
T is that absolute temperature t is a Celsius temperature
C, the input of the Ai analog input on the described controller (1), Di numeral is connected with temperature sensor (2), humidity sensor (3), with the simulation of the Ao on described PLC programmable logic controller (PLC), DDC direct digital controller or the single-chip computer control system export, the Do digital output interface is connected with proportional integral valve (4), frequency converter (5), main frame unit (6);
D, described controller (1) are provided with the temperature t of setting
0, the relative humidity ￠ that sets
0, described PLC programmable logic controller (PLC), DDC direct digital controller or single-chip computer control system calculate i by described operational formula
tWith i
T0Value is with i
tWith i
T0Compare, export more than one Ao or Do controlling value, the unlatching or the aperture of control ratio integral valve (4), the output frequency rate of control frequency converter (5), and the unlatching of main control system unit (6) or close.
2, a kind of Hpid precision air conditioner control method according to claim 1, this controlling value is the Ao controlling value, it is the standard analog signal of 2～10V or 4～20mA, is transported to described proportional integral valve (4), controls the unlatching or the aperture of described proportional integral valve (4).
3, a kind of Hpid precision air conditioner control method according to claim 1, this controlling value is the Ao controlling value, it is the standard analog signal of 2～10V or 4～20mA, is transported to described frequency converter (5), controls the output frequency of described frequency converter (5).
4, a kind of Hpid precision air conditioner control method according to claim 1, this controlling value is the Do controlling value, it is 1 or 0 data signal, is transported to described main frame unit (6), controls described main frame unit (6) and opens or close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100274656A CN100458295C (en) | 2007-04-06 | 2007-04-06 | Hpid precision air-conditioning controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100274656A CN100458295C (en) | 2007-04-06 | 2007-04-06 | Hpid precision air-conditioning controlling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101033881A CN101033881A (en) | 2007-09-12 |
| CN100458295C true CN100458295C (en) | 2009-02-04 |
Family
ID=38730548
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100274656A Expired - Fee Related CN100458295C (en) | 2007-04-06 | 2007-04-06 | Hpid precision air-conditioning controlling method |
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|---|---|
| CN (1) | CN100458295C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881497B (en) * | 2009-05-06 | 2012-05-30 | 上海煊荣自动化科技有限公司 | Method for controlling temperature interval intelligently |
| CN113701323B (en) * | 2021-09-29 | 2023-06-20 | 深圳市英威腾网能技术有限公司 | Air conditioner humidification control method, device, equipment and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073512A (en) * | 1991-12-13 | 1993-06-23 | 上海石化总厂维纶厂职工技术协会 | Intelligent controller for air conditioning |
| JP2002333190A (en) * | 2001-05-07 | 2002-11-22 | Yamatake Building Systems Co Ltd | System and method for controlling air conditioning |
| CN1389675A (en) * | 2002-07-18 | 2003-01-08 | 上海交通大学 | Heat-comfortable fuzzily controlled air conditioner |
| CN1680756A (en) * | 2004-04-08 | 2005-10-12 | 东莞市广大制冷有限公司 | Precisive module regulating method of air conditioner |
-
2007
- 2007-04-06 CN CNB2007100274656A patent/CN100458295C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073512A (en) * | 1991-12-13 | 1993-06-23 | 上海石化总厂维纶厂职工技术协会 | Intelligent controller for air conditioning |
| JP2002333190A (en) * | 2001-05-07 | 2002-11-22 | Yamatake Building Systems Co Ltd | System and method for controlling air conditioning |
| CN1389675A (en) * | 2002-07-18 | 2003-01-08 | 上海交通大学 | Heat-comfortable fuzzily controlled air conditioner |
| CN1680756A (en) * | 2004-04-08 | 2005-10-12 | 东莞市广大制冷有限公司 | Precisive module regulating method of air conditioner |
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| Publication number | Publication date |
|---|---|
| CN101033881A (en) | 2007-09-12 |
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