JP3474736B2 - Temperature / humidity controller and temperature / humidity control method for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the temperature/humidity of outer air to a target level without relying upon feedback control by setting a state change prediction line based on the outer air state point and a target temperature/humidity line thereby setting an optimal heating/humidifying unit and an optimal thermal capacity/humidification capacity/ cooling capacity. SOLUTION: A main heating capacity controller 25 controls the heating capacity such that the outlet temperature of a main heater 4 matches the end point temperature of a main heating line being set by a prediction line setter 16 and a humidification capacity controller 26 controls the outlet temperature of an adiabatic humidifier 5 to be matched with the end point temperature of an adiabatic humidification line being set by the humidification capacity controller 26. A cooling capacity controller 27 controls the outlet temperature of a cooler 6 to be matched with the end point temperature of a cooling line being set by the cooling capacity controller 27 and an auxiliary heating capacity controller 28 controls the outlet temperature of an auxiliary heater 7 to be matched with the end point temperature of an auxiliary heating line. An auxiliary humidification capacity controller 29 controls the humidity of air conditioning air finely based on the detection temperature of a thermometer/ humidifier TH2 .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for supplying conditioned air in which the outside air taken in is adjusted to a preset temperature and humidity, and in particular, it is desirable to keep the temperature and humidity constant and to apply under the same conditions. It is suitable for use when supplying conditioned air to a coating booth or the like.

[0002]

2. Description of the Related Art FIG. 3 shows a general air conditioner for controlling the temperature and humidity of the outside air to a predetermined temperature and humidity. An outside air intake 52 and an air conditioning air supply port 53 are formed at both ends of the air conditioner. In the air conditioner 51, a heat insulating and humidifying device 54 such as a washer, a cooling device 55, a heating device 56 called a reheater, and each of the devices 54
A blower fan 57 for supplying the conditioned air whose temperature / humidity has been adjusted in the range from to 56 is provided (see Japanese Patent Laid-Open No. 7-174360). Further, a temperature / humidity meter TH ₀ disposed at the outside air intake 52, the outlet side of the cooling device 55, and the conditioned air supply port 53,
TH ₁ and TH ₂ are connected to the control device 58, and the temperature and humidity meter TH _{0 is} the state point of the outside air, the temperature and humidity meter TH _{1 is} the state point of the air passing through the cooling device 55, and the temperature and humidity meter TH ₂
Is adapted to detect the state point of the conditioned air.

The humidifying capacity of the adiabatic humidifier 54 is
Thermo-Hygrometer TH₁Or TH ₂Determined based on the data of
The cooling capacity of the cooling device 55 is TH₁data from
The heating capacity of the heating device 56 is determined based on
Total TH₂Feedback control based on the data of
It is done like this. For example, the temperature and humidity meter TH₀Detected by
The temperature and humidity of the outside air is lower than the preset humidity,
When the set temperature is high, it was humidified by the adiabatic humidifier 54.
After that, it cools with the cooling device 55, and the conditioned air of a predetermined temperature and humidity is
I try to send it.

[0004]

In this case, the temperature and humidity of the air passing through the adiabatic humidifying device 54 and the cooling device 55 are
The temperature and humidity are detected by a thermo-hygrometer TH ₁ or TH _{2 provided} at the outlet side of the cooling device 55 or the air-conditioning air supply port 53, but the temperature and humidity cannot change independently, and for example, adiabatic humidification When humidified by the device 54, the humidity rises and the temperature drops at the same time, and when cooled by the cooling device 55, the temperature drops and the humidity falls at the same time. Therefore, the cooling device 5
Even if the temperature and humidity are detected by the thermo-hygrometer TH ₁ arranged on the outlet side of 5, the humidifying capacity of the adiabatic humidifying device 54 and the cooling device 55
It was extremely difficult to determine the cooling capacity of the, and stable feedback control was difficult.

Further, when air is heated and humidified, accurate temperature and humidity cannot be measured unless the air is stirred. Since each thermo-hygrometer TH ₁ provided in the air conditioner 51 detects the temperature and humidity of unstirred air, the detection result will include a large error, and it is not possible to strictly control it. It was the root point. Further, since the temperature / humidity meter TH ₂ is arranged at the air-conditioning air supply port 53, the temperature and humidity are detected after the air is agitated by the blower fan 57, and the detection result is reliable with little error. However, the humidification / cooling /
When the capacity of each of the heating devices 54 to 56 is feedback-controlled, it takes a long time to settle into a steady state due to an excessive time lag, and again, it was difficult to quickly control the temperature and humidity to a predetermined level.

Therefore, according to the present invention, firstly, temperature and humidity control is accurately and responsively performed without feedback control, and secondly, temperature and humidity control is stably and responsively performed even when feedback control is performed, and further energy saving is achieved. It is a technical issue to reduce the running cost.

[0007]

In order to solve this problem, the present invention provides at least a main heating device having a variable heating capacity and a variable humidification capacity in order to adjust the temperature of outside air taken in to a preset temperature and humidity. In an adiabatic humidifier, a cooling device with a variable cooling capacity, and a temperature / humidity control device for conditioned air, which includes an auxiliary heating device capable of finely adjusting the heating capacity, a temperature and humidity meter for detecting the temperature and humidity of the outside air, An air diagram table pre-stored with an air diagram is provided, and the target temperature / humidity line connecting the upper limit state point determined by the upper limit temperature and upper limit humidity of the conditioned air and the lower limit state point determined by the lower limit temperature and lower limit humidity is the air line. A target temperature / humidity line setter to set in the diagram table, an outside air state point setter to set the outside air state point based on the temperature and humidity of the outside air detected by the thermo-hygrometer to the air diagram table, and the outside air state point from the above The main heating line that moves along the absolute absolute humidity line in the heating direction and the main heating line that moves along the equal enthalpy line on the atmospheric line until reaching any state point on the temperature / humidity line The adiabatic humidification line, the cooling line that moves toward the cooling temperature set below the dew point temperature of the upper limit state on the air diagram, and the heating direction that moves along the absolute humidity line on the air diagram Of the auxiliary heating lines, the expected line setter that sets the expected state change line by connecting the necessary lines in this order, and the heating capacity of the main heating device according to the length of the main heating line of the expected state change line. A main heating capacity setting device to be set, a humidification capacity setting device to set the humidification capacity of the adiabatic humidification device according to the length of the adiabatic humidification line, and a cooling device to set the cooling capacity of the cooling device according to the length of the cooling line. Depending on the capacity setter and the length of the auxiliary heating wire, set the heating capacity of the auxiliary heating device. Characterized in that an auxiliary heating capacity setting instrument constant to.

According to the present invention, first, an air diagram in which a target temperature / humidity line connecting the upper limit state point determined by the upper limit temperature and the upper limit humidity of the conditioned air and the lower limit state point determined by the lower limit temperature and the lower limit humidity is set An outside air state point determined by the temperature and humidity of the outside air is set on the upper side. Then, from the outside air state point to an arbitrary state point on the target temperature / humidity line (for example, the closest state point), the main heating line that moves in the heating direction along the absolute humidity line on the air diagram, and the air Adiabatic humidification line that moves in the humidification direction along the isenthalpic line on the diagram, cooling line that moves toward the cooling temperature set below the dew point temperature of the upper limit state point on the air diagram, and air diagram Of the auxiliary heating lines that move in the heating direction along the isoabsolute humidity line above, the state change prediction line is set by connecting the necessary lines in this order. At this time, the length of the main heating line is the heating capacity of the main heating device, the length of the adiabatic humidification line is the humidification capacity of the adiabatic humidification device, the length of the cooling line is the cooling capacity of the cooling device, and the auxiliary heating The line represents the heating capacity of the auxiliary heating device. Therefore,
If the heating capacity, humidification capacity, cooling capacity, and auxiliary heating capacity are set according to the length of each line of the state change prediction line and the air conditioner is operated, the closest state point on the target temperature / humidity line from the outside air state point The state point changes accurately up to, and conditioned air adjusted to a predetermined temperature and humidity can be obtained.

At this time, since it is not necessary to perform feedback control, stable control can be performed without a control instability element caused by an error or a time lag included in the measurement result of the thermo-hygrometer. Moreover, since the heating capacity, the humidifying capacity, and the cooling capacity of the main heating device, the adiabatic humidifying device, the cooling device, and the auxiliary heating device are determined according to the state change prediction line set according to the state point of the outside air, the auxiliary heating device Energy loss is minimized by setting the state change expectation line to minimize the use of
Running costs can also be reduced.

Further, when performing the feed bag control, the outlet temperatures detected at the outlets of the main heating device, the adiabatic humidifying device, the cooling device, and the auxiliary heating device are set to the main heating of a preset state change prediction line. The heating / humidifying / cooling capacity of each device is fed back independently to match the end point temperature of the wire, adiabatic humidifying wire, cooling wire, and auxiliary heating wire. fast.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an explanatory view showing a temperature / humidity control device for an air conditioner according to the present invention, and FIG. 2 is a psychrometric diagram for explaining the control method.

In FIG. 1, the air conditioner 1 has an outside air intake 2 and an air conditioning air supply port 3 for supplying the conditioned air adjusted to a predetermined temperature and humidity at both ends. A main heating device 4 having a variable heating capacity such as a burner called a preheater from the inlet 2 side toward the conditioned air supply port 3
With a roll filter F, an adiabatic humidifier 5 having a variable humidification capacity such as a washer, a cooling device 6 having a variable cooling capacity, an auxiliary heating device 7 called a reheater capable of finely adjusting the heating capacity, and direct steam. Auxiliary humidifier 8 that performs isothermal humidification, and temperature-controlled / humidified conditioned air supply port 3
A blower fan 9 is provided for sending out from.

A thermohygrometer TH ₀ for detecting the temperature and humidity of the outside air is connected to the input side of the 10, and the main heating device 4, the adiabatic humidification device 5 and the cooling device 6 of the air conditioner 1 are connected to the output side thereof. A temperature / humidity control device to which an auxiliary heating device 7 and an auxiliary humidifying device 8 are connected, and which perform heating / humidification / cooling based on the temperature / humidity of the outside air detected by the temperature / humidity meter TH _0. The heating capacity, the humidifying capacity, and the cooling capacity of 8 to 8 are controlled. The temperature / humidity control device 10 sets an air diagram table 11 in which air diagrams are stored in advance and a target temperature / humidity line L connecting the upper limit state point Ps and the lower limit state point Pw of the conditioned air in the air diagram table 11. Based on the target temperature / humidity line setter 12 and the target temperature / humidity line L set by the target temperature / humidity line setter 12, the psychrometric chart is displayed in a plurality of control areas C ₁ to
Control area setter 13 for partitioning into C ₄ and temperature / humidity meter TH ₀
Outside air state points A _{1 to} A based on the temperature and humidity of outside air detected in
_The outside air state point setter 14 for setting ₅ in the air diagram table 11 and the control area for selecting _one control area C _{1 to} C ₄ to which the outside air state point A ₀ set by the outside air state point setter 14 belongs The selector 15 and the predicted state change lines J _{1 to} J ₅ from the outside air state points A _{1 to} A ₅ to the closest state points on the target temperature / humidity line L are set on the air diagram table 11 A line setter 16 and a capacity setter 17 for determining the heating capacity / humidifying capacity / cooling capacity of each device 4 to 7 for heating / humidifying / cooling based on the expected state change lines J _{1 to} J ₅ are provided. There is.

The upper limit state point Ps and the lower limit state point Pw of the conditioned air set by the target temperature / humidity line setter 12 are equal to the atmosphere in the coating booth in summer and winter, respectively, and are, for example,
The upper limit state point Ps has an upper limit temperature of 28 ° C. and an upper limit humidity of 75%.
(Relative humidity), the lower limit state point Pw is the upper limit temperature 2
It is set at 5 ° C. and the upper limit humidity of 75% (relative humidity).

In the control area setting device 13, based on the target temperature / humidity line L, the enthalpy is equal to the upper limit state point Ps, and the upper limit enthalpy line E extending from the upper limit state point Ps to the high temperature side.
s, the upper limit state point Ps and the absolute humidity are equal, and the upper limit state point P
The upper limit absolute humidity line Hs extending from s to the low temperature side, the lower limit state point Pw and the enthalpy are equal, the lower limit enthalpy line Ew extending from the lower limit state point Pw to the high temperature side, and the lower limit state point Pw and the absolute humidity are equal to the lower limit state point Pw. Each boundary line of the lower limit absolute humidity line Hw extending to the low temperature side is set on the air diagram table 11. Then, based on this, the air diagram is divided into the low temperature period control area C ₁ partitioned by the lower limit enthalpy line Ew and the lower limit absolute humidity line Hw, and the upper limit enthalpy line Es, the lower limit enthalpy line Ew, and the target temperature / humidity line L. Intermediate period low relative humidity control area C ₂ , intermediate period high relative humidity control area C ₃ partitioned by upper limit absolute humidity line Hs, lower limit absolute humidity line Hw and target temperature humidity line L, and upper limit enthalpy line Es
And the high temperature period control area C ₄ divided by the upper limit absolute humidity line Hs into _four control areas C _{1 to} C ₄ and set in the air diagram table 11.

The predictive line setting device 16 uses the outside air state points A ₁ to
From A ₅ to the closest state point on the target temperature / humidity line L, the main heating line J _T that moves in the heating direction along the iso-absolute humidity line on the air diagram and the isoenthalpy line on the air diagram. Along the adiabatic humidification line J _H that moves in the humidification direction along with the cooling line J _C that moves toward the cooling temperature Tc that is set below the dew point temperature of the upper limit state point Ps on the air diagram Auxiliary heating line J _t that moves along the absolute humidity line in the heating direction
Of these, the state change forecast line J
Set _{1 to} J ₅ . In the case of this example, the outside air state point A ₁ ~
Previously storing a control procedure corresponding to the control area C ₁ -C ₄ where A ₅ belongs cold stage control procedure setter S _1, interim low relative humidity control procedure setter S _2, interim high relative humidity control procedure setter S _3, and a high temperature period control procedure setter S _4, are adapted to determine a control procedure for each control area C ₁ -C _4.

In the low temperature period control area C ₁ , the outside air state point A ₁ has a lower enthalpy and a lower absolute humidity than the lower limit state point Pw. Therefore, the enthalpy is increased by the heating operation and the absolute humidity is increased by the adiabatic humidification operation. It needs to be high. Therefore, the low-temperature control procedure setter S ₁ has a lower limit enthalpy line Ew along the iso-absolute humidity line on the air diagram from the outside air state point A ₁ to the lower limit state point Pw.
The state change prediction line J that connects the main heating line J _T that moves in the heating direction up to and the adiabatic humidification line J _H that moves in the humidification direction along the isenthalpy line on the air diagram to the lower limit state point in this order.
₁ is set.

In the intermediate low relative humidity control area C ₂ ,
Since the enthalpy of the outside air state point A ₂ is equal to any of the state points on the target temperature / humidity line L and the relative humidity is only low, it is necessary to perform isenthalpic humidification by adiabatic humidification operation. Therefore, the intermediate low relative humidity control procedure setter S ₂
From the outside air state point A ₂ to the target temperature / humidity line L,
An adiabatic humidification line J _H that changes in the humidification direction along the isenthalpic line on the psychrometric chart is set as the state change prediction line J ₂ .

In the intermediate high relative humidity control area C ₃ ,
Since the absolute humidity of the outside air state point A ₃ is equal to any of the state points on the target temperature / humidity line L and only the temperature is low, it is necessary to perform the heating operation. This area C ₃ is the target temperature / humidity line L
Since the temperature difference from the above state point is small, it is difficult to control the temperature with the main heating device 4 having a large heating capacity, and therefore the auxiliary heating device 7 capable of finely adjusting the heating capacity is used. Then, the intermediate period high relative humidity control procedure setting device S ₃
From the outside air state point A ₃ to the target temperature / humidity line L,
An auxiliary heating line J _t that transitions in the heating direction along the iso-absolute humidity line on the psychrometric chart is set as the state change prediction line J ₃ .

In the high temperature period control area C ₄ , the outside air state points A ₄ and A ₅ have a higher enthalpy or a higher absolute humidity than the upper limit state point Ps. Therefore, even if it is necessary to perform the cooling operation, it is not necessary to increase the enthalpy by the heating operation. When the outside air state point A ₄ has a higher enthalpy and a lower absolute humidity than the upper limit state point Ps, it is necessary to pre-humidify in advance of the amount of dehumidification due to the cooling operation.
Further, when the humidity at the outside air state point A ₅ is sufficiently high, it is necessary to dehumidify by cooling operation and heat the supercooled portion by heating operation. Therefore, in the high temperature period control area C ₄ , the humidification boundary line Hc that passes through the cooling state point Pc of 100% relative humidity at the cooling temperature Tc of the cooling device 6 and the upper limit state point Ps.
In the low humidity area d on the low humidity side of the boundary line Hc.
₁ and the high-humidity area d ₂ on the high-humidity side. When the outside air state point A ₄ is in the low-humidity area d ₁ , the absolute humidity is increased by the adiabatic humidification operation, and then the dehumidification cooling is performed by the cooling operation. When the outside air state point A ₅ is in the high humidity area d ₂ , dehumidifying and cooling may be performed by a cooling operation, and then heating may be performed by a heating operation.

Therefore, the high temperature period control procedure setting device S_Four
At the outside air state point A_FourIs a low humidity area d₁When
Control procedure and outside air state point A_FiveIs a high humidity area d₂It is in
The control procedure at that time is set respectively. And the outside air
Starting point A_FourIs a low humidity area d₁The outside air state point when
From the upper limit state point Ps to
Transition along the lupi line to the humidification boundary line Hc in the humidification direction
Adiabatic humidification line J_HAnd on the humidification boundary line Hc toward the cooling direction
Cooling line J that changes to the upper limit state point Ps_CIn this order
Predicted state change line J _FourControlled along. Also,
Outside air state point A_FiveIs a high humidity area d₂Outside air when
From the state point to the upper limit state point Ps, cool the air diagram
Of the cooling device 6 at the cooling temperature Tc of 100% relative humidity
Transition to the upper limit absolute humidity line Hs toward the rejection state point Pc
Cooling line J_CAnd the upper limit state along the upper limit absolute humidity line Hs
Auxiliary heating line J that moves in the heating direction up to point Ps_tIn this order
Expected state change line J_FiveControlled along.

Further, the capacity setting device 17 is
Expected state change line J₁~ J _FiveMain heating line J_TAccording to the length of
Main heating capacity setting device for setting the heating capacity of the main heating device 4
18 and adiabatic humidification line J_HAdiabatic humidifier 5 depending on the length of
Humidifying capacity setting device 19 for setting the humidifying capacity of the
_CCooling that sets the cooling capacity of the cooling device 6 according to the length of
Capacity setting device 20 and auxiliary heating wire J_tDepending on the length of
Auxiliary heating capacity setting device 2 for setting the heating capacity of the heating device 7
1 and.

Note that TH ₂ is a temperature / humidity meter that monitors the temperature / humidity of the conditioned air at the conditioned air supply port 3, and 22 is based on the detection result and feeds back to the auxiliary heating device 7 and the auxiliary humidifying device 8 to control the temperature. This is a fine adjustment device that assists fine adjustment of humidity.

The above is an example of the configuration of the present invention. Next, a temperature and humidity control method using the same will be described. First,
The air diagram recorded in the air diagram table 11 shows a temperature of 28 ° C and a relative humidity of 75%, which is the atmosphere of the painting booth in the summer.
When the upper limit state point Ps and the lower limit state point Pw at a temperature of 20 ° C. and a relative humidity of 75%, which is the atmosphere of the coating booth in winter, are set, the target temperature / humidity line setter 12 sets the upper limit state point Ps.
A target temperature / humidity line L connecting s and the lower limit state point Pw is set.

Next, when the target temperature / humidity line L is set, the control area setter 13 controls the low temperature period control area C ₁ which mainly controls in the winter season and the low humidity period in the spring / autumn season mainly. Intermediate low relative humidity control area and C
_2, mainly spring / autumn half high relative humidity controlled area and C ₃ for controlling the day with a high humidity, is set four regions of high temperature period control area C ₄ to perform control mainly in summer. In each of the control areas C _{1 to} C ₄ , the enthalpy is equal to the upper limit state point Ps, the upper limit enthalpy line Es extending from the upper limit state point Ps to the high temperature side, and the upper limit state point Ps and the absolute humidity are equal to the low temperature side from the upper limit state point Ps. Upper limit absolute humidity line H
s, a lower limit enthalpy line Ew whose lower limit state point Pw is equal to the enthalpy and extends from the lower limit state point Pw to the high temperature side, and a lower limit absolute humidity line Hw whose lower limit state point Pw is equal to absolute humidity and extends from the lower limit state point Pw to the lower temperature side. It is partitioned. Also,
The high temperature period control area C ₄ has a low humidity side lower than the humidification boundary line Hc with the humidification boundary line Hc passing through the cooling state point Pc of 100% relative humidity and the upper limit state point Ps at the cooling temperature Tc of the cooling device 6 as a boundary. It is divided into a humidity area d ₁ and a high humidity area d ₂ on the high humidity side.

When operating the air conditioner 1, first, the temperature
Hygrometer TH₀The temperature and humidity of the outside air are detected with
Based on the outside air state point setter 14, the outside air condition is displayed on the air diagram.
Starting point A₁~ A_FiveTo set. In winter, the outside air condition point A₁But
Low temperature control area C₁Is often included in
Is the low temperature control procedure setting device S₁By the outside air state point A₁
From the lower limit state point Pw to the absolute absolute humidity on the psychrometric chart
Main heating line J that changes in the heating direction along the parallel line _TAnd the air
In the diagram, the disconnection that changes in the humidification direction along the isenthalpic line
Heat humidification line J_HThe state change prediction line J₁Set up
Is determined. At this time, the main heating wire J_TThe length of the main heating device
4 represents the heating capacity, and the adiabatic humidification line J_HAdiabatic humidification
Since it represents the humidification capacity of the device 5, the main heating capacity setting device 18
Is the main heating line J_THeating capacity of the main heating device 4 according to the length of
Is set, and the humidification capacity setting device 19 uses the adiabatic humidification line J_Hof
The humidifying capacity of the adiabatic humidifying device 5 is set according to the length.
The main heating device with the heating capacity and humidifying capacity set in this way
4 and the adiabatic humidifier 5 are operated, the air conditioner 1
The outside air taken in is the outside air state point A.₁To the lower limit state point P
Expected state change line J until w₁Its state changes according to
It That is, the outside air state point A₁Is the expected state change line J₁
Along the main heating line J_TAbove to the lower enthalpy line Ew
Transition to heating direction up to the lower limit enthalpy line Ew, then
Adiabatic humidification line J_HTransition from upper side to lower limit state point Pw in humidification direction
To do. In this case, the cooling device 6 should be stopped.
When the auxiliary heating device 7 and the auxiliary humidifying device 8 are
H_FourFor fine adjustment of temperature and humidity according to the detection result of
Well, the minimum heating capacity and the minimum humidifying capacity in the idling state
Let's drive at.

On the day when the relative humidity is low in spring / autumn, the outside air state point A ₂ is the intermediate low relative humidity control area C _{2 in the} middle period.
In this case, from the outside air state point A ₂ to the target temperature / humidity line L by the intermediate period low relative humidity control procedure setter S ₂ , along the enthalpy line on the air diagram. The adiabatic humidification line J _H that changes in the humidification direction is set as the state change prediction line J ₂ as it is. At this time, the humidifying capacity setting device 19 sets the humidifying capacity of the adiabatic humidifying device 5 according to the length of the adiabatic humidifying line J _H. Then, when the adiabatic humidifier 5 is operated with the humidification capacity set in this way, the outside air taken into the air conditioner 1 moves from the outside air state point A ₂ to the target temperature / humidity line L according to the state change prediction line J _2. The state changes, and in this case, the outside air state point A ₂ changes to the state point on the target temperature / humidity line L along the isenthalpic line along the adiabatic humidification line J _H in the humidification direction. In this case, the main heating device 4 and the cooling device 6 are stopped, and the auxiliary heating device 7 and the auxiliary humidifying device 8 are used to finely adjust the temperature and humidity according to the detection result of the temperature / humidity meter TH _4. Prepare and operate in the idling state with the minimum heating capacity and the minimum humidifying capacity.

Further, on the day of high relative humidity in the spring / autumn period, the outside air state point A ₃ is the intermediate high relative humidity control area C ₃
In this case, from the outside air state point A ₃ to the target temperature / humidity line L by the intermediate period high relative humidity control procedure setter S ₂ along the iso-absolute humidity line on the air diagram. The auxiliary heating wire J _t that changes in the heating direction is the expected state change line J ₃
Is set as. If the main heating device 4 tries to change the outside air state point A ₃ , the heating capacity of the main heating device 4 is too large to perform fine adjustment.
In this control area C ₃ , an auxiliary heating device 7 that can be finely adjusted
Is used. At this time, since the length of the auxiliary heating line J _t represents the heating capacity of the auxiliary heating device 7, the auxiliary heating capacity setting unit 21 determines the heating capacity of the auxiliary heating device 7 according to the length of the auxiliary heating line J _t. Is set. When the auxiliary heating device 7 is operated with the heating capacity thus set, the air conditioner 1
The outside air taken in changes its state from the outside air state point A ₃ to the target temperature / humidity line L according to the state change prediction line J ₃ , and in this case, the outside air state point A ₃ is on the target temperature / humidity line L. The auxiliary heating line J _t is changed in the heating direction along the absolute humidity line up to the state point. In this case, the main heating device 4
And the cooling device 6 is stopped, the adiabatic humidifying device 5 is operated in the idling state of the minimum humidifying capacity in order to remove dust and dirt contained in the outside air, and the auxiliary humidifying device 8 detects the temperature and humidity meter TH ₄ . Prepare for fine adjustment of the humidity according to the result, and operate in the idling state with the minimum humidification capacity.

Furthermore, in summer, the outside air state point A_Four，
A_FiveIs the high temperature control area C_FourOften included in. So
Then, the outside air state point A_FourIs control area C_FourLow humidity inside
Ad₁Is included in the high temperature control procedure setter S
_FourBy the outside air state point A_FourFrom the upper limit state point Ps
Then, along the enthalpy line on the psychrometric chart, the humidification boundary line H
Adiabatic humidification line J that changes in the humidification direction up to c_HAnd the humidification boundary
Transition to the upper limit state point Ps in the cooling direction on the line Hc
Cooling line J_CThe state change prediction line J_FourBut
Is set. Where adiabatic humidification line J_HAdiabatic humidification
Represents the humidification capacity of device 5, cooling line J _CThe length of the cooling device
Since it represents the cooling capacity of 6, the humidification capacity setting device 19
Wet line J_HDepending on the length of the
The cooling line J is set in the cooling capacity setting device 20._CAccording to the length of
Accordingly, the cooling capacity of the cooling device 6 is set. Set up like this
Adiabatic humidifier 5 and cool with the specified humidification capacity and cooling capacity.
When the cooling device 6 was operated, it was taken into the air conditioner 1.
Outside air is outside air state point A_FourFrom P to the upper limit state point Ps
The state changes according to the anticipation line J. Ie outside
Qi point A_FourIs an enthalpy line up to the humidification boundary line Hc
Adiabatic humidification line J along_HIt moves upward in the direction of humidification, and then
Cooling line J along the humidification boundary line Hc up to the upper limit state point Ps_C
The upper part moves in the cooling direction. In this case, the main heating
Stand 4 is stopped, auxiliary heating device 7 and auxiliary humidifier
Place 8 is a thermo-hygrometer TH_FourDepending on the detection result of
Be prepared to adjust the minimum heating capacity and minimum humidification capacity
Keep it running idling.

Further, the outside air state point A ₅ is the control area C ₄
When it is included in the high humidity area d ₂ of No. ₂ , the cooling temperature T of the cooling device 6 is set on the air diagram from the outside air state point A ₅ to the upper limit state point Ps by the high temperature period control procedure setter S _4.
The cooling line J _C that transitions to the upper limit absolute humidity line Hs toward the cooling state point Pc of 100% relative humidity in c, and the auxiliary heating line J that transitions in the heating direction along the upper limit absolute humidity line Hs to the upper limit state point Ps. _A state change prediction line J ₅ connecting _t in this order is set. Here, since the length of the cooling line J _C represents the cooling capacity of the cooling device 6 and the length of the auxiliary heating line J _t represents the heating capacity of the auxiliary heating device 7, the cooling capacity setting device 20
The cooling capacity of the cooling device 6 is set in accordance with the length of the cooling line J _C , and the auxiliary heating capacity setting device 21 sets the heating capacity of the auxiliary heating device 7 in accordance with the length of the auxiliary heating line J _t. .
When the cooling device 6 and the auxiliary heating device 7 are operated with the cooling capacity and the heating capacity thus set, the outside air taken into the air conditioner 1 changes from the outside air state point A ₅ to the upper limit state point P.
The state changes according to the state change prediction line J ₅ until s. That is, the outside air state point A ₅ is the upper limit absolute humidity line Hs.
Until the cooling state point Pc, the cooling line J _C moves in the cooling direction, and then the auxiliary heating line J _t moves in the heating direction along the absolute humidity line up to the upper limit state point Ps. In addition,
In this case, the main heating device 4 is stopped, the adiabatic humidification device 5 is operated in the idling state of the minimum humidification capacity in order to remove dust and dirt contained in the outside air, and the auxiliary humidification device 8 is a thermo-hygrometer. The heating capacity and the humidifying capacity are provided for feed bag control according to the detection result of TH ₄ , and the operation is performed in the idling state of the minimum humidifying capacity.

In the above description, the area in the psychrometric chart is divided into a plurality of control areas C _{1 to} C ₄ in advance, and the heating / humidifying devices 4 to 7 used in the respective areas are divided. Although the case of setting in advance has been described, the present invention is not limited to this, and any state on the target temperature / humidity line L from the outside air state points A _{1 to} A _{5 is} not divided into the control areas C _{1 to} C _4. It may be a case in which the heating / humidifying devices 4 to 7 to be used are selected and the heating capacity / humidifying capacity is determined by drawing the state change prediction line J up to the point. In addition, the air diagram is shown in four control areas C ₁
Although the case of division into C ₄ to C ₄ has been described, the division may be performed more finely according to the number of installations, configurations and capacities of the respective devices 4 to 8 that perform heating / humidification / cooling. For example, in the high temperature period control area C ₄ , the cooling temperature T of the cooling device 4 is
Although it is divided into two control areas d ₁ and d ₂ on the basis of the humidification boundary line Hc based on c, the other control areas C ₁ to
C ₃ may be further subdivided similarly to the high temperature period control area C ₄ .

FIG. 3 shows the temperature and humidity of another air conditioner according to the present invention.
Shows a degree control device. In addition, about the part which is common with Figure 1.
Are denoted by the same reference numerals and detailed description thereof will be omitted. In this example,
Heating device 4, adiabatic humidification device 5, cooling device 6, auxiliary heating device
Thermometers T for detecting the respective outlet temperatures of the device 7.₁~ T_FourWhen,
Temperature and humidity to measure the temperature and humidity of the conditioned air at the conditioned air supply port 3
Total TH₂Is provided. In addition, the capacity setter 17
Feedback-controls the heating capacity of the main heating device 4.
Humidification capacity of main heating capacity control device 25 and adiabatic humidification device 5
And a humidification capacity controller 26 for feedback control of the
Cooling capacity for feedback controlling the cooling capacity of the cooling device 6
Feeds the heating capacity of the control device 27 and the auxiliary heating device 7.
Auxiliary heating capacity control device 28 for back control and auxiliary humidification
Auxiliary humidifying volume for feedback controlling the humidifying volume of the device 8
A quantity control device 29 is provided. And each of the capacity control
The devices 25 to 29 have the thermometer T on the input side thereof.₁~ T _Four
And temperature and humidity meter TH₂Are connected to each other, and the main heating
Place 4, Adiabatic humidification device 5, Cooling device 6, Auxiliary heating device 7 and
And the auxiliary humidifier 8 are connected.

The main heating capacity control device 25 controls the heating capacity so that the outlet temperature of the main heating device 4 matches the end temperature of the main heating line J _T set by the expected line setting device 16, and the humidification capacity control is performed. The device 26 controls so that the exit temperature of the adiabatic humidification / humidification device 5 matches the end temperature of the adiabatic humidification line J _H set by the expected line setting device 16, and the cooling capacity control device 27 reaches the end temperature of the cooling line J _C. The auxiliary heating capacity controller 28 controls the outlet temperature of the cooling device 6 to match, and the auxiliary heating capacity controller 28 controls the outlet temperature of the auxiliary heating device 7 to match the end temperature of the auxiliary heating line J _t. Reference numeral 29 is adapted to finely adjust the humidity of the conditioned air based on the detection signal of the thermo-hygrometer TH ₂ .

For example, in winter, the outside air state point A₁Is low temperature
Period control area C₁If you belong to₁
The capacity is controlled based on the
25, the outlet temperature of the main heating device 4 is the main heating line J_TEnd of
Point temperature (main heating line J_TIntersects the lower enthalpy line Ew
Point B₁The heating capacity to match the
Control, and then heat insulation by the humidification capacity controller 26
The outlet temperature of the humidifier 5 is adiabatic humidification line J_HEnd temperature of (below
The heating capacity is adjusted to match the temperature of the limit state point Pw).
Control the feedback. Outside air condition point A during spring / fall₂But
Intermediate low relative humidity control area C₂Belongs to a state
Expected change line J₂The capacity is controlled based on the
The outlet temperature of the adiabatic humidifier 5 is adiabatically humidified by the control device 26.
Line J_HEnd point temperature (of any state point on the target temperature / humidity line L)
Feedback control of heating capacity to match temperature)
To do. Outside air condition point A during spring / fall₃Has intermediate high relative humidity
Control area C₃If you belong to₃
Auxiliary heating capacity control device 27
The outlet temperature of the auxiliary heating device 7 is_tEnd of
Set the point temperature (the temperature of any state point on the target temperature / humidity line L)
The heating capacity is feedback-controlled so as to compensate. summer
At the outside air state point A_FourIs an intermediate high relative humidity control area C_Four
Low humidity area d ₁If you belong to
_FourThe capacity control is performed based on the
26, the outlet temperature of the adiabatic humidification device 5 is set to the adiabatic humidification line J_H
End point temperature (adiabatic humidification line J_HIntersects with the humidifying boundary line Hc
Point B_FourThe humidification capacity to match the
Control, and then cooling by the cooling capacity control device 27
The outlet temperature of the device 6 is the end temperature of the cooling line Jc (upper limit state point
Adjust the cooling capacity so that it matches the Ps temperature).
Control. Furthermore, in summer, the outside air condition point A_FiveIs an interim period
High relative humidity control area C_FourLow humidity area d₂Belongs to
When is the expected state change line J_FiveCapacity control based on
First, the cooling capacity control device 27 is used to output the cooling device 6.
The mouth temperature is the end temperature of the cooling line Jc (cooling line J_CIs the absolute upper limit
Point B intersecting the humidity line Hs_FiveCold) to match
Feedback control of discharge capacity, then auxiliary heating capacity
The outlet temperature of the auxiliary heating device 7 is supplemented by the control device 27.
Heat ray J_tCoincides with the end point temperature of (the temperature of the upper limit state point Ps)
Feedback control of the heating capacity.

As described above, according to this example, since the main heating device 4, the adiabatic humidification device 5, the cooling device 6, and the auxiliary heating device 7 are independently feedback-controlled at the respective outlet temperatures, the respective control amounts are controlled. Not only can it be set easily and accurately irrespective of other controlled variables, but feedback can be made based on the outlet temperatures detected by the thermometers T _{1 to} T ₄ arranged at the outlets of the respective devices 4 to 7. Since it is controlled, its response speed is fast, and temperature / humidity can be accurately controlled at any state point on the target temperature / humidity line L. Moreover, since it is controlled according to a state change estimated line J ₁ through J ₅ which is set in advance, without performing wasteful control operation, energy saving,
This will contribute to low running costs.

[0036]

As described above, according to the present invention, the state change prediction line is set based on the outside air state point determined by the temperature and humidity of the outside air and the preset target temperature / humidity line. Based on the above, of the main heating device, adiabatic humidification device, cooling device, auxiliary heating device, the optimum heating / humidification device to be used for temperature and humidity control, and the optimum heating capacity / humidification capacity / cooling capacity of each Is set and operated, and there is an effect that the outside air taken into the air conditioner can be adjusted to a target temperature and humidity without controlling the feed bag. Further, since it is not necessary to perform feedback control, there is an effect that stable control can be performed without a control instability element caused by an error or a time lag included in the measurement result of the temperature and humidity meter.

Further, since the respective heating capacity / humidifying capacity / cooling capacity are determined according to the state change prediction line set according to the state point of the outside air, the state change prediction is made to minimize the use of the auxiliary heating device. By setting the line,
There is an effect that the energy loss can be minimized, and thus the running cost can be reduced.

Further, in the case of performing the feedback control, the outlet temperatures detected at the outlets of the main heating device, the adiabatic humidifying device, the cooling device, and the auxiliary heating device are set as main values of the preset state change prediction line. Since the heating / humidification / cooling capacity of each device is controlled independently so that the end temperature of the heating wire, adiabatic humidification wire, cooling wire, and auxiliary heating wire may be matched, each controlled variable may be set to another controlled variable. Not only can it be set simply and accurately, but also the response speed is fast, and the temperature and humidity can be accurately controlled at any state point on the target temperature and humidity line.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a temperature / humidity control device for an air conditioner according to the present invention.

FIG. 2 is a psychrometric diagram showing a temperature and humidity control method for an air conditioner according to the present invention.

FIG. 3 is an explanatory view showing a temperature / humidity control device for another air conditioner according to the present invention.

FIG. 4 is an explanatory view showing a conventional device.

[Explanation of symbols]

1 ... Air conditioner 2 ... Outside air intake 3 ... Air conditioning air supply port 4 ... Main heating device 5 ... Adiabatic humidifier 6 ... Cooling device 7 ...・ ・ ・ Auxiliary heating device 10 ・ ・ ・ Temperature and humidity control device 11 ・ ・ ・ ・ Plot diagram 12 ・ ・ ・ ・ Target temperature and humidity line setting device 13 ・ ・ ・ Control area setting device 14 ・ ・ ・ Outside air State point setter 15 ・ ・ ・ ・ Control area selector 16 ・ ・ ・ ・ ・ ・ Expected line setter S ₁・ ・ ・ Low temperature control procedure setter S ₂・ ・ ・ Intermediate low relative humidity control procedure setter S ₃・・ ・ Intermediate period high relative humidity control procedure setter S ₄・ ・ ・ High temperature control procedure setter 17 ・ ・ ・ ・ Capacity setter 18 ・ ・ ・ Main heating capacity setter 19 ・ ・ ・ Humidification capacity setter 20 .... cooling capacity setting unit 21 ... auxiliary heating capacity setting unit TH ₀ · · hygrometer Ps · · · upper limit state point Pw · · · limit shape Point L · · · · target temperature and humidity line Es · · · upper limit enthalpy Hs · · · upper limit absolute humidity line Ew · · · lower enthalpy Hw · · · lower absolute humidity line Hc · · · humidification border C ₁ ·・ ・ Low temperature control area C ₂・ ・ ・ Intermediate low relative humidity control area C ₃・ ・ ・ Intermediate high relative humidity control area C ₄・ ・ ・ High temperature control area d ₁・ ・ ・ Low humidity area d ₂・... high humidity area A ₁ ~A ₅ ··· outside air state point J ₁ ~J ₅ ····
Expected state change line J _T ... Main heating line J _H ... Adiabatic humidification line J _C ... Cooling line J _t ... Auxiliary heating line Tc ... Cooling temperature Pc ... Cooling state point T ₁ ~ T ₄ ... thermometer 25 ... main heating capacity control device 26 ... humidification capacity control device 27 ... cooling capacity control device 28 ... auxiliary heating capacity control device

Continuation of the front page (56) Reference JP-A-5-288390 (JP, A) JP-A-2-37245 (JP, A) JP-A-63-294445 (JP, A) JP-A-4-124546 (JP , A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) F24F 11/02 102

Claims (6)

(57) [Claims] 1. A main heating device (4) having a variable heating capacity, an adiabatic humidifying device (5) having a variable humidification capacity, and a cooling capacity having a variable cooling capacity in order to adjust the temperature of outside air taken in to a preset temperature and humidity. A temperature / humidity controller (TH ₀ ) for detecting the temperature and humidity of outside air in a temperature / humidity control device for conditioned air, comprising a cooling device (6) and an auxiliary heating device (7) capable of finely adjusting a heating capacity, Equipped with a psychrometric chart table (11) in which psychrometric charts are stored in advance, the upper limit state point (Ps) determined by the upper limit temperature and upper limit humidity of the conditioned air and the lower limit state point (Pw) determined by the lower limit temperature and lower limit humidity are set. Target temperature / humidity line setter (12) that sets the connected target temperature / humidity line (L) in the air diagram table (11)
And an outside air state point setter (14) that sets the outside air state points (A _{1 to} A ₅ ) based on the temperature and humidity of the outside air detected by the thermo-hygrometer (TH ₀ ) in the air diagram table (11), From the outside air state point (A ₀ ) to an arbitrary state point on the target temperature / humidity line (L), a main heating line (J _T) that moves in the heating direction along the iso-absolute humidity line on the air diagram. ), And the adiabatic humidification line (J _H ) that moves in the humidification direction along the isenthalpic line on the psychrometric chart, and the cooling temperature set below the dew point temperature of the upper limit state point (Ps) on the psychrometric chart ( Of the cooling line (J _C ) that moves toward Tc) and the auxiliary heating line (J _t ) that moves in the heating direction along the iso-absolute humidity line on the air diagram, connect the necessary lines in this order. and state change estimated line (J ₁ through J ₅₎ estimated line setter for setting (16), depending on the length of the state change estimated line (J ₁ through J ₅₎ of the main heating line (J _T) The main heating capacity setting device for setting the heating capacity of the heating device (4) and (18), humidifier capacity setting unit for setting the humidification capacity of the adiabatic humidifier according to the length of the adiabatic humidifier line (J _H) (5) (19) and a cooling capacity setting device (20) for setting the cooling capacity of the cooling device (6) according to the length of the cooling wire (J _C ).
And an auxiliary heating capacity setting device (21) for setting the heating capacity of the auxiliary heating device (7) according to the length of the auxiliary heating wire (J _t ).
And a temperature and humidity control device for an air conditioner. 2. The temperature of the outside air taken in is set to a preset temperature and humidity.
To adjust, at least the main heating device with variable heating capacity
The installation (4), the adiabatic humidifier (5) with variable humidification capacity, and the
Cooling device (6) with variable capacity and fine adjustment of heating capacity are possible
Temperature and humidity control of conditioned air equipped with a functional auxiliary heating device (7)
In your device, Thermo-hygrometer (TH₀) And the air diagram
With a psychrometric chart table (11) stored in advance, Upper limit determined by upper limit temperature and upper limit humidity of conditioned air
The lower limit determined by the starting point (Ps) and the lower limit temperature and lower limit humidity.
Plot the target temperature / humidity line (L) connecting the limit state points (Pw)
Target temperature / humidity line setter (12) set in the table (11)
When, Thermo-hygrometer (TH₀) The outside air based on the temperature and humidity of the outside air detected by
State point (A₁~ A_Five) To the psychrometric table (11)
An outside air state point setter (14), The outside air condition point (A₀) From the target temperature / humidity line (L)
Up to the arbitrary state point, the absolute absolute humidity line on the air diagram
Along the main heating line (J_T) And the air line
Insulation that changes in the direction of humidification along the isenthalpic line on the figure
Humidification line (J_H) And the dew of the upper limit state point (Ps) on the psychrometric chart.
Transition toward the cooling temperature (Tc) set below the point temperature
Cooling line (J_C) And the air line diagram along the absolute humidity line.
Auxiliary heating wire (J_t) Out of
Expected state change line (J₁~ J_Five)
Expected line setting device (16) to set, Main heating device (4), adiabatic humidification device (5), cooling device
(6) Detects the outlet temperature of each auxiliary heating device (7)
Thermometer (T₁~ T_Four)When, Expected state change line (J₁~ J_Five) Main heating line (J_TEnd of)
Match the outlet temperature of the main heating device (4) with the point temperature
Feedback control of the heating capacity of the main heating device (4)
Controlling main heating capacity controller (25) and adiabatic humidification line
(J_H) End temperature of the adiabatic humidification humidifier humidifier (5) outlet temperature
Humidification volume of the adiabatic humidification device (5) to match the degree
Humidification capacity controller for feedback control of quantity (26)
And the cooling line (J _C) End temperature of the cooling device (6) outlet
Cooling capacity of the cooling device (6) to match the temperature
A cooling capacity control device (27) for feedback control of
Auxiliary heating wire (J_t) End temperature of the auxiliary heating device (7)
Adjust the auxiliary heating device (7) to match the outlet temperature.
Auxiliary heating capacity control device for feedback control of heating capacity
The temperature and humidity of the air conditioner characterized by being equipped with
Control device. 3. The upper limit state point (Ps) is equal to the upper limit state point (Ps) on the psychrometric chart based on the target temperature and humidity line (L) set by the target temperature and humidity line setter (12). ) From the upper limit enthalpy line (Es) to the high temperature side, the upper limit state point (Ps) has the same absolute humidity, and the upper limit state point (Ps) extends to the low temperature side from the upper limit absolute humidity line (Hs) and the lower limit state point (Pw). )
And the enthalpy are equal and the lower limit enthalpy line (Ew) extends from the lower limit state point (Pw) to the high temperature side, and the lower limit absolute humidity line (Ew) that is equal to the lower limit state point (Pw) and extends from the lower limit state point (Pw) to the low temperature side (Ew). Hw) and set the psychrometric chart in the low temperature control area (C ₁ ) divided by the lower limit enthalpy line (Ew) and the lower limit absolute humidity line (Hw) and the upper limit enthalpy line (Es).
, The lower limit enthalpy line (Ew) and the target temperature / humidity line (L), the intermediate low relative humidity control area (C ₂ ), the upper limit absolute humidity line (Hs), the lower limit absolute humidity line (Hw) and the target temperature / humidity Mid-term high relative humidity control area separated by line (L)
(C ₃ ) and the high temperature period control area (C ₄ ) divided by the upper limit enthalpy line (Es) and the upper limit absolute humidity line (Hs).
Select the control area setter (13) to be set to and the one control area (C _{1 to} C ₄ ) to which the outside air state points (A _{1 to} A ₅ ) set by the outside air state point setter (14) belong With the control area selector (15), the expected line setting device (16) has a control procedure according to the control area (C _{1 to} C ₄ ) to which the outside air state point (A _{1 to} A ₅ ) belongs. Pre-stored low temperature control procedure setter (S ₁ ), intermediate low relative humidity control procedure setter (S ₂ ), intermediate high relative humidity control procedure setter (S ₃ ), high temperature control procedure setter (S ₄ ) and the low-temperature control procedure setter (S ₁ ) has a constant absolute humidity line on the air diagram from the outside air state point (A ₁ ) to the lower limit state point (Pw). Main heating line that changes in the heating direction (J
_T ) and the adiabatic humidification line (J _H ) that moves in the humidification direction along the enthalpy line on the psychrometric chart are connected in this order to set the state change prediction line (J ₁ ). The humidity control procedure setter (S ₂ ) has an adiabatic humidification line that moves in the humidification direction along the isenthalpic line on the air diagram from the outside air state point (A ₂ ) to the target temperature / humidity line (L). (J _H ) is set as a state change prediction line (J ₂ ), and the intermediate high relative humidity control procedure setting device (S ₃ ) changes from the outside air state point (A ₃ ) to the target temperature / humidity line (L). Until then, the auxiliary heating line (J _t ) that moves in the heating direction along the iso-absolute humidity line on the psychrometric chart is set as the state change prediction line (J ₃ ), and the high temperature period control procedure setter (S ₄ ) Is the outside air state point (A
_4, A ₅ ) to the upper limit state point (Ps), the adiabatic humidification line (J _H ) and the cooling temperature (Tc) set on the psychrometric chart below the dew point temperature of the upper limit state point (Ps) Of the cooling line (J _C ) that moves toward (1) and the auxiliary heating line (J _t ) that moves in the heating direction along the iso-absolute humidity line on the air diagram, the necessary line is connected in this order. The temperature / humidity control device for an air conditioner according to claim 1 or 2 _{, wherein the} change prediction lines (J _4, J ₅ ) are set. 4. The outside air taken in has a preset temperature and humidity.
To adjust, at least the main heating device with variable heating capacity
The installation (4), the adiabatic humidifier (5) with variable humidification capacity, and the
Cooling device (6) with variable capacity and fine adjustment of heating capacity are possible
Temperature and humidity control of conditioned air equipped with a functional auxiliary heating device (7)
In the way On the psychrometric chart, the upper limit temperature and the upper limit humidity of the conditioned air
Upper limit state point (Ps) and lower limit temperature and lower limit humidity
Therefore, the target temperature / humidity line connecting the lower limit state points (Pw) determined
Set (L), Thermo-hygrometer (TH₀)
Therefore, the outside air state point (A₁~ A_Five), The outside air state point (A₁~ A_Five) To the target temperature / humidity line (L)
Absolute humidity on the psychrometric chart until reaching any of the above state points
Main heating line that changes in the heating direction along the line (J _T) And the sky
Transition in the humidification direction along the isenthalpic line on the air diagram
Adiabatic humidification line (J_H) And the upper limit state point (Ps) on the psychrometric chart
Toward the cooling temperature (Tc) set below the dew point temperature of
Transitional cooling line (J_C) And the absolute humidity line on the psychrometric chart
Auxiliary heating wire (J_t) No
Then, the expected state change line (J₁~
J_Five), Expected state change line (J₁~ J_Five) Main heating wire (J_T) Long
Set the heating capacity of the main heating device (4) according to
Humidification line (J_H) Depending on the length of the
Set the wet capacity and set the cooling line (J_C) Depending on the length of
Set the cooling capacity of the unit (6) and set the auxiliary heating wire (J_t) Long
Set the heating capacity of the auxiliary heating device (7) according to
Main heating device (4), adiabatic humidification device (5), cooling device
(6), characterized by operating the auxiliary heating device (7)
A method for controlling temperature and humidity of an air conditioner. 5. The outside air taken in has a preset temperature and humidity.
To adjust, at least the main heating device with variable heating capacity
The installation (4), the adiabatic humidifier (5) with variable humidification capacity, and the
Cooling device (6) with variable capacity and fine adjustment of heating capacity are possible
Temperature and humidity control of conditioned air equipped with a functional auxiliary heating device (7)
In the way On the psychrometric chart, the upper limit temperature and the upper limit humidity of the conditioned air
Upper limit state point (Ps) and lower limit temperature and lower limit humidity
Therefore, the target temperature / humidity line connecting the lower limit state points (Pw) determined
Set (L), Thermo-hygrometer (TH₀)
Therefore, the outside air state point (A₁~ A_Five), The outside air state point (A₁~ A_Five) To the target temperature / humidity line (L)
Absolute humidity on the psychrometric chart until reaching any of the above state points
Main heating line that changes in the heating direction along the line (J _T) And the sky
Transition in the humidification direction along the isenthalpic line on the air diagram
Adiabatic humidification line (J_H) And the upper limit state point (Ps) on the psychrometric chart
Toward the cooling temperature (Tc) set below the dew point temperature of
Transitional cooling line (J_C) And the absolute humidity line on the psychrometric chart
Auxiliary heating wire (J_t) No
Then, the expected state change line (J₁~
J_Five), Expected state change line (J₁~ J_Five) Main heating wire (J_TEnd of)
Match the outlet temperature of the main heating device (4) with the point temperature
Feedback control of the heating capacity of the main heating device (4)
Control, adiabatic humidification line (J_H) End temperature of adiabatic humidification humidification
The adiabatic humidifier so that the outlet temperatures of the unit (5) are matched.
Feedback control of the humidification capacity of the unit (5), cooling line
(J_C) Match the outlet temperature of the cooling device (6) with the end temperature of
Feed the cooling capacity of the cooling device (6) to
Back control, auxiliary heating wire (J_t) To the end temperature
The auxiliary heating is applied so that the outlet temperatures of the heating device (7) are matched.
Feedback control of the heating capacity of the heat device (7)
Heating device (4), adiabatic humidification device (5), cooling device
(6), characterized by operating the auxiliary heating device (7)
A method for controlling temperature and humidity of an air conditioner. 6. The target temperature / humidity line (L) on the psychrometric chart
Is set, the upper limit state point (Ps) is equal to the enthalpy, and the upper limit state point (Ps) is equal to the upper limit state point (Ps). ) From the upper limit to the low temperature side absolute humidity line (H
s) and the lower limit state (Pw) is equal to the enthalpy, and the lower limit enthalpy line (Ew) extends from the lower limit state (Pw) to the high temperature side.
Then, set the lower limit absolute humidity line (Hw) that has the same absolute humidity as the lower limit state point (Pw) and extends from the lower limit state point (Pw) to the low temperature side.Based on this, the air diagram is set to the lower limit enthalpy line (Ew) and Low temperature control area separated by lower limit absolute humidity line (Hw)
(C ₁ ), upper enthalpy line (Es), lower enthalpy line
(Ew) and target temperature / humidity line (L), the intermediate low relative humidity control area (C ₂ ), the upper limit absolute humidity line (Hs), the lower limit absolute humidity line (Hw), and the target temperature / humidity line (L) It is divided into at least four areas, an intermediate high relative humidity control area (C ₃ ) partitioned by and a high temperature control area (C ₄ ) partitioned by the upper enthalpy line (Es) and the upper absolute humidity line (Hs). When the outside air state point (A ₁ ) set on the diagram is in the low temperature control area (C ₁ ), the air diagram is drawn from the outside air state point (A ₁ ) to the lower limit state point (Pw). The main heating line (J _T ) that moves in the heating direction along the iso-absolute humidity line, and the adiabatic humidification line (J _H ) that moves in the humidification direction along the isenthalpy line on the air diagram in this order. Set the connected state change prediction line (J ₁ ) and set the outside air state point (A ₂ ) to the intermediate low relative humidity control area (C ₂ ).
When it is, the adiabatic humidification line (J _H ) that changes in the humidification direction along the isenthalpic line on the air diagram from the outside air state point (A ₂ ) to the target temperature / humidity line (L) changes its state. Set as the forecast line (J ₂ ), and the outside air state point (A ₃ ) is the middle high relative humidity control area (C ₃ ).
When it is, the auxiliary heating line (J _t ) that moves in the heating direction along the absolute absolute humidity line on the air diagram from the outside air state point (A ₃ ) to the target temperature and humidity line (L) set as changes estimated line (J _3), outside air state point (a _4, a ₅₎ when is in a high temperature phase control area (C ₄₎ is outside air state point (a _4, a ₅₎ from the upper limit state point ( Ps), the cooling temperature set below the dew point temperature of the adiabatic humidification line (J _H ) and the upper limit state point (Ps) on the psychrometric chart.
Of the cooling line (J _C ) that moves toward (Tc) and the auxiliary heating line (J _t ) that moves in the heating direction along the iso-absolute humidity line on the air diagram, the required line is in this order. The method of controlling temperature and humidity of an air conditioner according to claim 4 or 5, wherein a connected state change prediction line (J ₄ , J ₅ ) is set.