JPH11132532A - Temperature and humidity controller for air conditioner and recording medium used for the same for recording temperature and humidity control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform stably a control with good responsiveness under an optimum condition for an air conditioner, save energy and reduce running cost when each temperature and humidity adjuster of the air conditioner for adjusting outside air to prescribed temperature and humidity is feed-back controlled. SOLUTION: It is decided which area of control areas A1 to A10 of a control map M an outside air state point belongs to based on a control area decision program PA. Then, based on an expected line setting program PJ, necessary lines of a main heat operating line, an adiabatic humidification operating line, a cool operating line, an auxiliary heat operating line and an isothermal humidification operating line are connected together in the order described above from the outside air state point to target temperature and humidity in accordance with the control area A1 to A10 to which the outside air state point belongs so that a state change expected line is set. Then, based on the state change expected line, the end temperature of each operating line is set as the target outlet temperature/humidity of a main heater H, an adiabatic humidifier W, a cooler C, an auxiliary heater RH and an isothermal humidifier DS and respective temperature and humidity adjusters 4... are feed-back controlled by respective capacity controllers Y1 to Y5 .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature / humidity control device for an air conditioner for controlling the temperature / humidity of an air conditioner for supplying conditioned air whose temperature / humidity is adjusted to a predetermined temperature / humidity of taken-in outside air. Further, the present invention relates to a recording medium on which a temperature / humidity control program used for this is recorded.

[0002]

2. Description of the Related Art FIG. 6 shows an existing air conditioner 1 for controlling the temperature and humidity of taken-in outside air to a predetermined temperature and humidity. The outside air inlet 2 is formed at one end and the other end is formed. The conditioned air supply port 3 is formed on the side. A main heating device having a variable heating capacity such as a burner called a preheater is provided as a temperature / humidity controller 4 for controlling the temperature / humidity of the outside air in an air flow path from the outside air inlet 2 to the conditioned air supply port 3. H, an adiabatic humidifier W having a variable humidification capacity such as a filler-type gas-liquid contactor, a cooling device C having a variable cooling capacity such as a cooling coil, and an auxiliary heating device R capable of finely adjusting a heating capacity called a reheater.
H, Isothermal humidifier DS for isothermal humidification such as steam discharge pipe
Are arranged in this order. A roll filter RF for removing dust in the air is interposed between the main heating device H and the heat insulation humidifier W, and a ventilation fan 5 for supplying conditioned air is provided at the conditioned air supply port 3. ing.

A temperature sensor T ₂ disposed on the outlet side of the adiabatic humidifier W and a temperature / humidity sensor TH ₂ disposed on the conditioned air supply port 3 are connected to the control device 40. the T ₂ are adapted to detect the temperature of air passing through the main heater H and adiabatic humidifier W, it detects the temperature and humidity of the conditioned air by the temperature and humidity sensor TH _2.

The adiabatic humidifier W is operated at full power so that the relative humidity of the air passing therethrough becomes 100%, and the controller 40 determines the capacity of the main heater H by the detection signal of the temperature sensor T ₂ . by also cooler C, cooling / heating / humidification capacity of the auxiliary heater RH and the isothermal humidifier DS is feedback-controlled based on the detection signal of the temperature-humidity sensor TH _2.

For example, if the temperature detected by the temperature sensor T ₂ is higher than the allowable temperature range, the amount of heat supplied to the main heating device H is reduced, and if the temperature is lower than the allowable temperature range, the main heating device H is reduced.
Is increased to be within the allowable temperature range. Then, based on the detection result of the temperature and humidity sensor TH _2, the predetermined absolute humidity to the dehumidified by cooling in a cooling device C, the RH auxiliary heater is heated to a predetermined temperature,
Alternatively, the humidification is performed by performing isothermal humidification by the isothermal humidifier DS as necessary, so that the outside air taken into the air conditioner 1 is temperature- and humidity-controlled so that conditioned air having a desired temperature and humidity is finally obtained. Has been adjusted.

However, in this case, as shown in FIG. 7, after the heating is performed more than necessary by the main heating device H and humidified more than necessary by the adiabatic humidifier W, the cooling device C is used to remove excess water. Since the cooling operation is performed, and when the temperature heated by the auxiliary heating device RH exceeds a predetermined temperature and the relative humidity decreases, the control is performed such that the isothermal humidification device DS performs isothermal humidification. There is a problem that the operation is included, energy loss is large, and running costs are increased.

For this reason, the main heating device H, the adiabatic humidifying device W, the cooling device C, the auxiliary heating device RH, and the isothermal humidifying device DS
Is controlled individually based on the respective outlet temperature and outlet humidity, control with relatively little waste can be performed. FIG. 8 shows an air conditioner 1 including a capacity setting device 41 that performs such control.
Main heating capacity control device 42 for feedback control of the heating capacity of main heating device H, humidification capacity control device 43 for feedback control of the humidification capacity of adiabatic humidification device W, and cooling capacity control for feedback control of the cooling capacity of cooling device C. The apparatus includes an apparatus 44, an auxiliary heating capacity control device 45 for feedback-controlling the heating capacity of the auxiliary heating device RH, and an isothermal humidification capacity control device 46 for feedback-controlling the humidification capacity of the isothermal humidification device DS.

The capacity control devices 42 to 46
Are provided on the input side to the temperature sensors T _{1 to} T ₄ provided on the outlet side of the main heating device H, the adiabatic humidifier W, the cooling device C, the auxiliary heating device RH, and the conditioned air supply port 3. temperature and humidity sensor TH ₂ are connected, the main heater H at its output side, the adiabatic humidifier W, the cooling device C, auxiliary heater RH and the isothermal humidifier DS is connected. According to this,
Adjust the volume of each such outlet temperature of people each detected by the temperature sensors T ₁ through T ₄ is equal to the target outlet temperature set in advance, also based on the humidity detected by the temperature-humidity sensor TH ₂ Since the outlet humidity of the isothermal humidifier DS is finely adjusted, conditioned air adjusted to a predetermined temperature and humidity can be obtained.

[0009]

However, in order to set the temperature and humidity at the outlet of the air conditioner 1 to a predetermined target temperature and humidity, the outlet temperatures of the individual temperature and humidity controllers 4, 4... Whether to do it is not simply decided,
Even if the target temperature and humidity are constant, if the temperature and humidity of the outside air change, it changes every moment.

For example, in the psychrometric chart shown in FIG. 9, when the outside air state point X ₁ is lower in temperature and absolute humidity than the target state point P ₀ of the conditioned air, after heating by the main heating device H, adiabatic humidification is performed. operation of the adiabatic humidifier is performed in unit W, this time, the target outlet temperature of the main heater H is t _1. Here, when the humidity of the outside air rises and the outside air state point becomes X ₂ , the target outlet temperature of the main heating device H decreases to t ₂ ,
If the outside air state point humidity is lowered becomes X _3, the target outlet temperature of the main heater H is raised to t _3. Incidentally, for example, if the absolute humidity is also temperature of the outside air rises / lowers changes as shown in the outside air state point X _4, the target outlet temperature t ₁ of the main heater H does not change.

When the temperature of the outside air state point X ₅ is higher than the target state point P ₀ of the conditioned air and the absolute humidity is low, the operation of cooling with the cooling device C after performing adiabatic humidification with the adiabatic humidification device W is performed. We, this time, the target outlet temperature of the adiabatic humidifier W is t _5. Here, if the outside air state point becomes X ₆ absolute humidity of outside air temperature is not changed is increased, the outlet temperature of the adiabatic humidifier W is increased to t _6, the outside air state point absolute humidity is lowered If it becomes X _7, the outlet temperature of the adiabatic humidifier W is reduced to t _7.

As described above, each target outlet temperature changes every moment due to a change in the temperature and humidity of the outside air, and the relationship between the temperature and humidity change of the outside air and the target outlet temperature is complicated.
It is difficult to set the target outlet temperature in each of the capacity control devices 42 to 46, and it is difficult to perform stable control. Moreover, the air conditioner 1 is provided with the temperature and humidity controllers 4 and 4 installed therein.
Which temperature and humidity controller 4, 4 according to the type and capacity of each
.. Should be operated at different levels, it is not possible to perform stable and efficient control only by individually controlling the temperature and humidity controllers 4, 4.

Accordingly, the present invention provides stable and responsive response under optimum conditions for an air conditioner when feedback control of each temperature and humidity controller is performed to obtain conditioned air whose outside air is adjusted to a predetermined temperature and humidity. Good control,
Finally, it is a technical issue to save energy and reduce running costs.

[0014]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a temperature / humidity controller for controlling the temperature / humidity of external air taken in, a main heating device having a variable heating capacity, and a thermal insulation having a variable humidification capacity. Among air conditioners, at least one of a humidifying device, a cooling device having a variable cooling capacity, an auxiliary heating device capable of finely adjusting a heating capacity, and an isothermal humidifying device capable of finely adjusting a humidifying capacity is arranged in this order. A temperature / humidity control device for an air conditioner that performs temperature / humidity control, and each outlet temperature or outlet humidity detected by a temperature sensor or a temperature / humidity sensor installed at an outlet of a temperature / humidity regulator provided in the air conditioner. A capacity control device that feedback-controls each capacity so as to match each target outlet temperature or target outlet humidity determined by the temperature and humidity of the outside air, and a temperature / humidity sensor that detects the temperature and humidity of the outside air are I / O. The main controller is connected to the main controller via a port, and when the temperature / humidity data of the outside air is input from a temperature / humidity sensor for detecting the temperature / humidity of the outside air, the main controller controls each temperature / humidity according to the outside air state point. An arithmetic processing device that calculates a target outlet temperature or a target outlet humidity of the regulator according to a predetermined program, and a storage device that stores a program to be executed by the arithmetic processing device and necessary data, wherein the storage device includes: Based on the performance of the temperature / humidity controller provided in the air conditioner and the target temperature / humidity of the conditioned air to be temperature / humidified by the air conditioner, the combination of the temperature / humidity controller used in accordance with the temperature / humidity of the outside air is determined. A control map that divides the air line diagram into a plurality of set control areas, and when the temperature and humidity of the outside air are input, the outside air state point determined by the temperature and humidity of the outside air is:
According to the control area determination program for determining which control area belongs to, and the control area to which the outside air state point belongs,
From the outside air state point to the target temperature and humidity state point of the conditioned air, the main heating operation line that changes in the heating direction along the iso-absolute humidity line on the humid air line diagram, and the enthalpy line on the humid air line diagram Adiabatic humidification operation line that moves in the humidification direction along the line, cooling operation line that moves toward the cooling temperature of the cooling device on the humid air line diagram, and heating along the iso-absolute humidity line on the humid air line diagram A prediction line for setting a state change prediction line in which necessary lines of the auxiliary heating operation line transitioning in the direction and the required line of the isothermal humidification operation line transitioning in the humidification direction along the isothermal line on the humid air chart are connected in this order. Based on the setting program and the state change prediction line set by the prediction line setting program, the end point temperatures of the main heating operation line, the adiabatic humidification operation line, the cooling operation line, the auxiliary heating operation line, and the isothermal humidification operation line are determined by the air conditioner. Main heating equipment, heat insulation humidifier , Cooling, auxiliary heating device, the target Atsushi Ideguchi and humidity setting program for calculating a target outlet temperature or the target outlet humidity isothermal humidifier is characterized in that it is recorded.

According to the present invention, when the temperature and humidity of the outside air are detected, the control area determination program determines which control area of the preset control map belongs to the outside air state point determined by the temperature and humidity. Is done. The control map is based on the performance of the temperature / humidity controller provided in the air conditioner and the target temperature / humidity of the conditioned air to be temperature / humidified by the air conditioner, and adjusts the temperature / humidity used in accordance with the temperature / humidity of the outside air. Since the psychrometric chart is divided into a plurality of control areas in which combinations of devices are set, when the control area to which the outside air state point belongs is set, the combination of temperature and humidity controllers used for temperature and humidity control is determined. You.

Next, according to the control area to which the outside air state point belongs, heating is performed along the iso-absolute humidity line on the psychrometric chart from the outside air state point to a preset target temperature and humidity state point. The main heating operation line that changes in the direction, the adiabatic humidification operation line that changes in the humidification direction along the isenthalpy line on the air line diagram, and the cooling operation line that changes toward the cooling temperature of the cooling device on the air line diagram And the auxiliary heating operation line that changes in the heating direction along the iso-absolute humidity line on the psychrometric diagram, and the required line of the isothermal humidification operation line that changes in the humidifying direction along the isotherm on the air line diagram. The predicted state change line connected in this order is set by the predicted line setting program.

[0017] Based on the state change prediction line set by the prediction line setting program, the end point temperatures of the main heating operation line, the adiabatic humidification operation line, the cooling operation line, the auxiliary heating operation line, and the isothermal humidification operation line are determined by air conditioning. The target outlet temperature or the target outlet humidity of the main heating device, the adiabatic humidifier, the cooling device, the auxiliary heating device, and the isothermal humidifier of the device is calculated. This target outlet temperature or target outlet humidity is output to each capacity control device, and each temperature and humidity controller is feedback-controlled.

[0018]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing a temperature / humidity control device for an air conditioner according to the present invention, FIG. 2 is a wet air line diagram showing a control map, and FIGS. 3 to 5 are wet air lines showing state change prediction lines in each control area. FIG. Parts that are the same as those in FIG. 6 are denoted by the same reference numerals, and detailed description is omitted.

The temperature / humidity controller 10 of the present embodiment includes temperature / humidity controllers 4, 4.
Main heating device H with variable heating capacity, adiabatic humidifier W with variable humidification capacity, cooling device C with variable cooling capacity, auxiliary heating device RH with fine adjustment of heating capacity, and isothermal humidification device with fine adjustment of humidification capacity The DS controls the temperature and humidity of the air conditioner 1 arranged in this order.

The temperature and humidity control device 10 includes a main heating capacity control device Y ₁ , adiabatic humidification capacity control device Y ₂ , a cooling capacity control device Y ₃ , and an auxiliary, which feedback-control the capacity of each of the temperature and humidity controllers 4, 4. A heating capacity control device Y ₄ , an isothermal humidification capacity control device Y _5, and a temperature / humidity sensor TH ₁ for detecting temperature and humidity of the outside air are connected to the main control device 12 via an I / O port 11.
It is connected to the.

Each of the capacity control devices Y _{1 to} Y ₅ is connected at its input side to a temperature sensor T _{1 to} T ₄ and a temperature and humidity sensor TH ₂ installed at the outlet of each of the temperature and humidity adjusters 4, 4. ,
Each temperature and humidity controller 4, 4 ... is connected to its output side,
The respective detected outlet temperature / outlet humidity is the target outlet temperature / each outlet data sent from the main controller 12 as data.
Each temperature and humidity controller 4, 4 ... so that it matches the target outlet humidity
Feedback control of the capacity of

The temperature / humidity sensor TH ₂ installed at the air-conditioned air supply port 3 inputs the detected temperature data to the auxiliary heating capacity control device Y _4, and converts the detected humidity data to the isothermal humidification capacity control. device Y ₅ is made is in so as to enter into, the auxiliary heating capacity control apparatus Y _4, is adapted to correct the volume of the auxiliary heater RH based on the temperature data input from the temperature and humidity sensor TH _2.

When the temperature and humidity data of the outside air is input from the temperature and humidity sensor TH ₁ for detecting the temperature and humidity of the outside air, the main control device 12 sets an outside air state point G determined by the temperature and humidity.
A processing unit 13 for calculating according to the temperature and humidity regulator 4,4 ... target outlet temperature or the target outlet humidity a predetermined program in response to ₁ ~G _10, stores a program to be executed in the processing unit 13 And a storage device 14.

The storage device 14 stores a control map M obtained by dividing the psychrometric chart into a plurality of control areas A _{1 to} A _10.
And a control area determination program PA for determining which of the control areas A _{1 to} A ₁₀ in the control map M the outside air state points G _{1 to} G ₁₀ determined by the temperature and humidity of the outside air when they are input. When, the outside air state point G ₁ ~ in accordance with the control area a ₁ to a ₁₀ in which the outside air state point G ₁ ~G ₁₀ belongs
And estimated line setting program PJ to set the state change estimated line J ₁ through J ₁₀ from G ₁₀ up to the state point of the target temperature and humidity of the conditioned air, estimated line setting program PJ set at state change estimated line J ₁ ~ based on J _10, each temperature and humidity regulator 4,4 ...
A target outlet temperature / humidity setting program PD for calculating the target outlet temperature or target outlet humidity is recorded. The control map M, the control area determination program PA, the expected line setting program PJ, and the target outlet temperature / humidity setting program PD
It is supplied via a recording medium such as a / O disk or a floppy disk. Reference numeral 15 denotes the outside air state points G _{1 to} G ₁₀ and the state change expected line J ₁ superimposed on the control map M.
Through J ₁₀ and, the temperature sensors T ₁ through T ₄ and the temperature and humidity sensor T
This is a display for graphically displaying temperature / humidity data detected in H ₂ and the like.

As the condition data for setting the control map M, for example, Ts: target upper limit temperature of conditioned air, Φs: target upper limit humidity of conditioned air, Tw: target lower limit temperature of conditioned air, Φw: target lower limit of conditioned air Humidity, Hmax: maximum heating capacity of main heating device H, Hmin: minimum heating capacity of main heating device H, Wmax: maximum humidification capacity of adiabatic humidification device W, Cmax: maximum cooling capacity of cooling device C, Tc: cooling device C RHmax: maximum heating capacity of the auxiliary heating device RH, DSmax: maximum humidification capacity of the isothermal humidification device DS, Tmax: outside air temperature upper limit set value, and the temperature and humidity regulators 4 and 4 of the air conditioner 1 are used. …
Each value is determined according to. In this case, the data on the capacity of each of the temperature and humidity controllers 4, 4,... Is determined according to the air volume when the air conditioner 1 is operated. If the temperature and humidity of the conditioned air are to be kept constant throughout the year, the same value is set for the upper limit temperature and humidity Ts, Φs and the lower limit temperature and humidity Tw, Φw of the conditioned air. Furthermore, Hmax = 0 and Hmin = 0 when there is no main heating device H in tropical specifications, and Cmax = 0 when there is no cooling device C in cold region specifications or the like.

Based on these data, FIG.
A control map M as shown in FIG. This control map M is represented on the psychrometric chart by Ps: an upper limit state point determined by the target upper limit temperature and humidity Ts, Φs of the conditioned air, Pw: a lower limit state point determined by the target lower limit temperature and humidity Tw, Φw of the conditioned air, L ₀ : The temperature and humidity of the conditioned air in the intermediate period are set to the upper limit state point Ps.
And the target temperature and humidity line represented by a line connecting the lower limit state point Pw, Ls, Lw: extending region extending to the target temperature and humidity line L ₀ in the auxiliary heating operation from the upper limit state point Ps and lower state point Pw to the dew point of the respective Upper and lower limit auxiliary heating lines set by iso-absolute humidity lines, Es, Ew: Upper and lower limit enthalpy lines extending from the upper limit state point Ps and the lower limit state point Pw to the high temperature side in parallel with the isoenthalpy line, L ₁ : Upper and lower limit humidification amount corresponding to the maximum humidification capacity Wmax of adiabatic humidifier W a region extending to the target temperature and humidity line L ₀ by adiabatic humidification operation in sandwiched by the regions enthalpy Es and Ew with respect to the target temperature and humidity line L ₀ only adiabatic humidification capacity setting line representing a line set to the low humidity side, L _2: the isothermal line in accordance with the maximum humidification capacity DSmax of the lower enthalpy Ew and adiabatic humidification capacity setting line L ₁ and the isothermal humidifier DS Along A line that moves parallel to the low humidity side Te, the total humidifying capacity setting line representing a lower bound to reach the target temperature and humidity line L ₀ by combining the adiabatic humidification operation isothermal humidifying operation, L _3: Minimum heating main heater H The lower limit enthalpy line Ew is moved to the low temperature side by the temperature corresponding to the capacity Hmin, and is a line extending from the lower end thereof in parallel with the isotherm line. Heating capacity setting line, L ₄ : An enthalpy lower than the enthalpy of the lower limit state point Pw by an enthalpy corresponding to the maximum heating capacity Hmax of the main heating device H by the lower enthalpy reaching the enthalpy of the lower limit state point Pw by the main heating operation. maximum main heating capacity setting line represented by, L _5: isothermal humidifying representing the minimum temperature capable of reaching the lower limit state point Pw by lines which down along the isotherm from the lower limit state point Pw by performing isothermal humidification operation Limit temperature line, L _6: the lower limit absolute humidity can humidified to the absolute humidity equal humidity lower state point Pw by performing adiabatic humidification operation,
Adiabatic humidifier lower humidity line intersection and the absolute humidity of lower enthalpy Ew and adiabatic humidification capacity setting line L ₁ is represented by equal line, L _7: absolute humidity of the lower state point Pw by performing adiabatic humidification operation and the isothermal humidification operation the lower limit absolute humidity can humidified to equal humidity when the total humidifying lower limit humidity line representing an equal absolute humidity line passing through the lower absolute humidity of the total humidifying capacity setting line L _2, L _8: maximum principal heating capacity setting line L ₄ and adiabatic humidifier in isenthalpic line extending in a low-temperature side from a point on the total humidifying lower psychrometric L ₇ at the intersection temperature of the lower limit humidity line L _6, the main representative of the heatable lower limit temperature to the lower limit state point Pw without auxiliary heating operation Heating limit line, L ₉ : An isenthalpy line set parallel to the low enthalpy side from the main heating limit line L _{8 by} an enthalpy corresponding to the maximum heating capacity RHmax when the amount of heat supplied to the auxiliary heating device RH is maximized. , Where a lower limit temperature line representing the lower limit temperature at which heating can be performed to the lower limit state point Pw by performing the main heating operation and the auxiliary heating operation, L ₁₀ : an upper limit state point by an enthalpy corresponding to the maximum cooling capacity Cmax of the cooling device C A line set on the enthalpy side higher than the enthalpy of the dew point of Ps, a cooling limit line indicating the upper limit temperature / humidity capable of dehumidifying up to the absolute humidity of the upper limit state point Ps, L ₁₁ : relative humidity 10 at the cooling temperature Tc of the cooling device C
In an extended line connecting the 0% cooling state point Pc and the upper limit state point Ps, the cooling line than the upper limit state point Ps extends to the high temperature side, L _12: numerical data the maximum temperature-rays corresponding to the outside air temperature upper limit set value Tmax or Set as formula data.

Based on this, the control map M is obtained by dividing the psychrometric chart into a plurality of control areas A _{1 to} A ₁₀ having different combinations of the temperature and humidity controllers 4, 4. The control areas A _{1 to} A ₁₀ are as follows: A ₁ : low-temperature low-temperature surrounded by a total heating lower limit temperature line L ₉ , a total humidification lower limit humidity line L ₇ , a main heating limit line L _8, and a saturated vapor pressure line LH. low humidity control area, a _2: saturated main heating limit line L ₈ and the total humidifying lower psychrometric L ₇ and minimum principal heating capacity setting line L ₃ and the adiabatic humidifier lower psychrometric L ₆ and maximum principal heating capacity setting line L ₄ low-life high-temperature low humidity controlled area enclosed by the vapor pressure curve LH, a _3: maximum principal heating capacity setting line L ₄ and the adiabatic humidifier lower psychrometric L ₆ and minimum principal heating capacity setting line L ₃ saturated vapor pressure curve LH low-life high-temperature and high-humidity controlled area surrounded by, A _4: target temperature and humidity line L ₀ and the interim low relative humidity control area bounded by the lower limit enthalpy Ew and adiabatic humidification capacity setting line L ₁ and the upper limit enthalpy Es , A ₅ : Lower limit enthalpy line Ew and adiabatic humidification capacity setting line L ₁
The interim low absolute humidity controlled area surrounded by the upper limit temperature line L ₁₂ and the total humidifying capacity setting line L ₂ and the minimum principal heating capacity setting line L ₃ and the isothermal humidifying minimum temperature line L _5, A _6: Full humidification lower psychrometric L ₇ and the total humidifying capacity setting line L ₂ and the minimum principal heating capacity setting line L ₃ and half low enthalpy control area enclosed by, a _7: upper enthalpy Es and the target temperature and humidity line L ₀ and the lower limit enthalpy Intermediate high relative humidity control area surrounded by line Ew and saturated vapor pressure line LH, A ₈ : lower limit enthalpy line Ew and isothermal humidification lower limit temperature line L ₅
Interim low temperature control area enclosed by the minimum principal heating capacity setting line L ₃ and, A _9: upper enthalpy Es and the upper limit temperature line L ₁₂ and the cooling limit line L ₁₀ and the cooling line L ₁₁ and enclosed by a high temperature stage low humidity control area, a _10: cooling limit line L ₁₀ and the cooling line L ₁₁ and the upper auxiliary heating line L
s and the high-temperature high-humidity control area surrounded by the saturated vapor pressure line LH.

When the temperature and humidity of the outside air is detected by the temperature and humidity sensor TH ₁ , the control area determination program PA determines which of the control areas A in the control map M is outside air state points G _{1 to} G ₁₀ determined by the temperature and humidity. It intended to determine if they belong to ₁ to a _10, for example, if it belongs to the control area a ₁ outputs "a _1" as the data.

The anticipation line setting program PJ executes the control
Control area A by area determination program PA₁~ A_Ten
Is set, the state change expected line J₁~ J_TenThe set
I do. State change expected line J₁~ J_TenIs the outside air state point G₁~
G_TenControl area A to which₁~ A_TenEach sable corresponding to
-Pin PJ₁~ PJ_TenSet by the psychrometric chart
Main heating operation that changes the heating direction along the iso-absolute humidity line
Line H_lAlong the isenthalpy line on the psychrometric chart.
Adiabatic humidification operation line W that changes in the wet direction_lAnd the moist airline diagram
Cooling that moves upward to the cooling temperature Tc of the cooling device C
Operation line C_lAlong the absolute humidity line on the psychrometric chart
Auxiliary heating operation line RH that changes in the heating direction _lAnd moist air
Isothermal humidification operation that changes in the humidification direction along the isotherm on the diagram
Line DS _lOf necessary lines are connected in this order
You.

The low-temperature low-temperature low-humidity control area A ₁ represents a range in which the main heating device H, the adiabatic humidifier W, the auxiliary heating device RH, and the isothermal humidifier DS reach the lower limit state point Pw, and a corresponding subroutine PJ ₁ is shown in FIG.
As shown in, from the outside air state point G ₁ up to the lower limit state point Pw, the main heating operation line H _l and adiabatic humidification operating line W _l and the auxiliary heating operation line RH _l isothermal humidification operating line DS _l in this order to set the state change expected line J ₁ that connects.

The low-temperature high-temperature low-humidity control area A ₂ represents a range in which the main heating device H, the adiabatic humidifier W, and the isothermal humidifier DS reach the lower limit state point Pw, and the corresponding subroutine PJ ₂ is shown in FIG. (b), from the outside air state point G ₂ up to the lower limit state point Pw, the state changes that connects the main heating operation line H _l and adiabatic humidification operating line W _l isothermal humidification operating line DS _l in this order setting the expected line J _2.

The low-temperature high-temperature high-humidity control area A ₃ represents a range in which the main heating device H and the adiabatic humidifier W reach the lower limit state point Pw, and a corresponding subroutine PJ
_3, from the outside air state point G ₃ up to the lower limit state point Pw,
The main heating operation line H _l and adiabatic humidification operating line W _l sets the state change estimated line J ₃ which connects in this order.

The intermediate-period low relative humidity control area A ₄ represents a range reaching a point on the target temperature / humidity line L _{0 with} only the adiabatic humidifier W, and a corresponding subroutine PJ ₄ is shown in FIG.
(A), the outside air state point G ₄ up to the point on the target temperature and humidity line L _0, to set the state change estimated line J ₄ adiabatic humidification operating line W _l.

The intermediate-period low absolute humidity control area A ₅ is set to a target temperature / humidity line L by an adiabatic humidifier W and an isothermal humidifier DS.
Represents a range that reaches a point on the _0, the subroutine PJ ₅ corresponding thereto, as shown in FIG. 4 (b), the outside air state point G
₅ up to the point on the target temperature and humidity line L _0, to set the state change estimated line J ₅ connecting the adiabatic humidification operating line W _l isothermal humidification operating line DS _l in this order.

The mid-term low enthalpy control area A ₆ is
Adiabatic humidifier W, auxiliary heating device RH, and isothermal humidifier DS
Represents the range reaching the lower limit state point Pw, and when the main heating device H is operated, the heating capacity becomes excessive and the humidity becomes insufficient or exceeds the lower limit state point Pw. Subroutine PJ ₆ corresponding thereto, as shown in FIG. 4 (c), from the outside air state point G ₆ up to the point on the target temperature and humidity line L _0, the auxiliary heating operation line RH adiabatic humidification operating line W _l the _l and isothermal humidification operating line DS _l to set the state change expected line J ₆ that connects in this order.

The intermediate high relative humidity control area A ₇ uses the auxiliary heating device RH alone to set the target temperature / humidity line L
_When the main heating device H is used to reach the point above _0, it indicates the range of overheating, and the corresponding subroutine RH
_7, as shown in FIG. 4 (d), from the outside air state point G ₇ up to the point on the target temperature and humidity line L _0, the auxiliary heating operation line RH
Setting the _l as a state change estimated line J _7.

Interim low-temperature control area A₈Humidification
The lower limit state point Pw is reached by the device W and the auxiliary heating device RH
And the corresponding subroutine RH ₈Is
As shown in FIG. 4 (e), the outside air state point G₈From lower limit
Until the point Pw, the adiabatic humidification operation line W_lAnd auxiliary heating operation
Line RH_lState change expected line J connecting₈Set
You.

The high-temperature-period low-humidity control area A ₉ represents a range in which the adiabatic humidifier W and the cooling device C reach the upper limit state point Ps. The corresponding subroutine RH ₉ is shown in FIG.
As shown in (a), from the outside air state point G ₉ to the upper limit state point P
up to s, the cooling operation line C _l adiabatic humidification operating line W _l sets the state change estimated line J ₉ which connects in this order.

The high-temperature high-humidity control area A ₁₀ represents a range in which the cooling device C and the auxiliary heating device RH reach the upper limit state point Ps, and a corresponding subroutine RH ₁₀ is as shown in FIG. , from the outside air state point G ₁₀ up to the upper limit state point Ps, the auxiliary heating operation line RH and cooling operating line C _l
l Setting a change in the state estimated line J ₁₀ that connects in this order.

Then, a target outlet temperature / humidity setting program
In the PD, the state change is predicted by the prediction line setting program PJ.
Imaginary line J₁~ J_TenIs set, the main heating
Operation line H_l, Adiabatic humidification operation line W_l, Cooling operation line C_l, Supplement
Auxiliary heating operation line RH _l, Isothermal humidification operation line DS_lEnd point temperature
The main heating device H and the heat insulation humidifying device of the air conditioner 1
W, cooling device C, auxiliary heating device RH, isothermal humidifying device DS
Is calculated as the target outlet temperature or target outlet humidity.

When the target outlet temperature and target outlet humidity calculated in this way are input to the capacity controllers Y _{1 to} Y ₅ of the temperature and humidity controllers 4, 4,... 4
Each temperature and humidity as ... outlet temperature or outlet moisture of the respective detected in installed in the outlet temperature sensor T ₁ through T ₄ or the temperature and humidity sensor TH ₂ of matches with the target outlet temperature or the target outlet humidity respective The capacity of the adjusters 4, 4,... Is feedback-controlled.

The above is an example of the configuration of the present invention, and its operation will be described next. For example, when controlling the temperature and humidity of the air conditioner for controlling the ambient temperature in the painting booth, target temperature / humidity Ts = 28 ° C., Φs = 75%, and winter Target temperature and humidity of conditioned air Tw = 20 ° C., Φw = 75%, maximum heating capacity Hmax of main heating device H = 500,000 kcal / hr, minimum heating capacity Hmin = 100,000 kcal / hr, maximum humidification of adiabatic humidification device W Capacity (humidification capacity when operated at maximum humidification efficiency of 80%) W
max = 440 kg / hr, maximum cooling capacity Cma of the cooling device C
x = 500,000 kcal / hr, cooling temperature Tc of cooling device C = 7
° C, maximum heating capacity RHmax of auxiliary heating device RH = 100,000 kcal / hr, maximum humidification capacity DSmax of isothermal humidification device DS
= 150 kg / hr and upper limit outside air temperature Tmax = 43 ° C., a control map M as shown in FIG. 2 is set. In addition,
The capacity of each of the temperature and humidity controllers 4, 4,... Is determined by the air flow rate (m ³ / hr) of the air conditioner 1, and for example, in this example, the air flow rate is
The capacity at the time of 55000 Nm ³ / hr is set.

Next, the control map M and the control area determination program PA, the predicted line setting program PJ, and the target outlet temperature / humidity setting program PD corresponding to the control map M are stored in the storage device 14.
, And the temperature and humidity of the air conditioner 1 is controlled by the temperature and humidity controller 10.

First, when the outside temperature and humidity are detected by the temperature and humidity sensor TH ₁ , the outside air state points G _{1 to} G ₁₀ are read by the arithmetic processing unit 13 of the main control unit 12 and controlled by the control area determination program PA. control area a ₁ to a ₁₀ on the belonging control map M is set. Next, control area A
₁ If to A ₁₀ is set, the subroutine PJ ₁ ~ predicted line setting program PJ corresponding to the control area A ₁ to A ₁₀
PJ ₁₀ is selected by the subroutine PJ ₁ ~PJ _10, state change estimated line J ₁ through J ₁₀ from the outside air state point G ₁ ~G ₁₀ up to the state point of the target temperature and humidity of the conditioned air is set .

Then, based on the predicted state change lines J _{1 to} J ₁₀ , the main heating operation line H ₁ , the adiabatic humidification operation line W ₁ , the cooling operation line C ₁ , the auxiliary heating operation line RH ₁ , and the isothermal humidification operation line DS
The endpoint temperature of _l, calculated main heater H for the air conditioner 1 has, adiabatic humidifier W, the cooling device C, auxiliary heater RH, a target outlet temperature or the target outlet humidity of the isothermal humidifier DS, which I / Each capacity control device Y via the O port 11
And outputs it to the _{1 ~Y 5.}

In each of the capacity control devices Y _{1 to} Y ₅ , the outlet temperature and the outlet humidity of each of the temperature and humidity controllers 4, 4... Detected by the temperature sensors T _{1 to} T ₄ and the temperature and humidity sensor TH ₂ are controlled by the main control. calculated by the device 12 the target outlet temperature to match the target outlet humidity, since the feedback control of the capacity of the respective outdoor air transitions according to a state change estimated line J ₁ through J ₁₀ which is set. In this case, the outlet temperature, the outlet humidity is monitored, the state point is, the state change estimated line J ₁ through J ₁₀
Away from the allowable range for a predetermined time (for example, a two-minute intuition)
An alarm may be sounded when it does not return within the allowable range even after the elapse.

[0047]

As described above, according to the present invention, the optimum state change prediction line is automatically determined based on the outside air state point determined by the outside air temperature and humidity and the preset target temperature and humidity line. Based on this, the device to be used for temperature / humidity control is selected from among the main heating device, adiabatic humidifier, cooling device, and auxiliary heating device installed in the air conditioner as a temperature / humidity controller. The heating / humidification / cooling capacity of each device is adjusted so that the outlet temperature of the humidity controller matches the end temperatures of the main heating line, the adiabatic humidification line, the cooling line, and the auxiliary heating line of the preset state change prediction line. Independent control allows each control amount to be set easily and accurately irrespective of other control amounts. In addition, since unnecessary control operations are not required, the response speed is high and energy loss is reduced. Minimize,
Therefore, there is an extremely excellent effect that the running cost can be reduced. In addition, the control device according to the present invention, even when the design of the air conditioner is changed or the temperature / humidity controller is replaced, is optimized for air conditioners with different conditions only by changing the software stored in the storage device. This is a very excellent effect that the temperature and humidity can be controlled.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a temperature and humidity control device for an air conditioner according to the present invention.

FIG. 2 is a psychrometric chart showing a control map.

FIGS. 3A to 3C are psychrometric charts showing state change prediction lines.

4 (a) to 4 (e) are psychrometric charts showing state change prediction lines.

FIGS. 5A and 5B are psychrometric charts showing state change prediction lines.

FIG. 6 is an explanatory view showing a conventional device.

FIG. 7 is a psychrometric chart showing the operation.

FIG. 8 is an explanatory view showing an air conditioner obtained by improving a conventional device.

FIG. 9 is a psychrometric chart showing the operation.

[Explanation of symbols]

1 ... air conditioner 4 ... temperature and humidity controller H ... main heating device W ... adiabatic humidifier C ... cooling device RH ····· Auxiliary heating device DS ··· Isothermal humidification device 10 ··· Temperature / humidity control device 11 ··· I / O port 12 ··· Main control device 13 ··· ··· Arithmetic processing unit 14 ····· Storage device Y _{1 to} Y ₅ ··· Capacity control device T _{1 to} T ₄ ··· Temperature sensor TH ₁ , TH ₂ ··· Temperature and humidity sensor A _{1 to} A ₁₀ ··· Control area M · · · · · · control map G ₁ ~G ₁₀ ·· outside air state point J ₁ through J ₁₀ · · state change estimated line

Claims (2)

[Claims] 1. Temperature and humidity for controlling the temperature / humidity of taken-in outside air
Main heating device with variable heating capacity as regulator (4 ...)
(H), adiabatic humidifier with variable humidification capacity (W), cooling capacity
Variable cooling device (C), auxiliary with fine adjustment of heating capacity
Isothermal heating with heating device (RH) and fine adjustment of humidification capacity
At least one of the DSs is distributed in this order.
An air conditioner for controlling the temperature and humidity of the air conditioners (1) arranged in a line
A temperature and humidity controller (4 ...) provided for the air conditioner (1).
Temperature sensor (T₁~ T_Four) Or hot and humid
Degree sensor (TH_Two) Detected at each outlet temperature or outlet
Each target outlet temperature whose mouth humidity is determined by the temperature and humidity of the outside air
Temperature or target outlet humidity.
Capacity control device (Y ₁~ Y_Five) And outside
Temperature / humidity sensor (TH₁) Is I /
The main controller (12) is connected to the main controller (12) via an O port (11), and the main controller (12) detects the temperature and humidity of the outside air.
Degree sensor (TH₁) From outside air temperature and humidity data
Each temperature and humidity controller according to the outside air state point (4 ...)
Target outlet temperature or target outlet humidity
Accordingly, the arithmetic processing device (13) for calculating the
Stores programs to be executed in the storage (13) and necessary data
And a temperature and humidity controller (4...) Provided in the air conditioner (1).
To control the temperature / humidity by the performance of the air conditioner and the air conditioner (1)
Based on the target temperature and humidity of the conditioned air
With a combination of temperature and humidity controllers (4 ...)
Number of control areas (A₁~ A_Ten)
When the map (M) and the temperature and humidity of the outside air are input,
Outside air state point (G₁~ G_Ten), Which control area
(A₁~ A_TenControl area judgment program
Program (PA) and the outside air state point (G₁~ G_Ten) To which control area (A₁~
A_Ten), The outside air state point (G₁~ G_Ten) From the sky
Wet psychrometric chart up to the target temperature / humidity state point of air conditioning
The main heating operation that moves in the heating direction along the iso-absolute humidity line above
Line drawing (H_l) And along the isenthalpy line on the psychrometric chart.
Adiabatic humidification operation line (W_l) And wet
On the psychrometric chart to the cooling temperature (Tc) of the cooling device (C).
The cooling operation line (C_l) And on the psychrometric chart
Heating operation that changes the heating direction along the iso-absolute humidity line
Line drawing (RH_l) And add them along the isotherm on the psychrometric chart.
Isothermal humidification operation line (DS_l) Out of need
State change prediction line (J₁~ J_Ten)
Line setting program (PJ) for setting the condition, and the state change set by the line setting program (PJ).
Forecast line (J₁~ J _Ten), Based on the main heating operation line
(H_l), Adiabatic humidification operation line (W_l), Cooling operation line
(C_l), Auxiliary heating operation line (RH_l), Isothermal humidification operation line
(DS_l), The end point temperature of the air conditioner (1)
Heating device (H), adiabatic humidifying device (W), cooling device (C),
Target output of auxiliary heating device (RH) and isothermal humidification device (DS)
Target outlet temperature / humidity calculated as mouth temperature or target outlet humidity
A setting program (PD) is recorded.
Temperature and humidity controller for air conditioner. 2. Temperature and humidity for controlling / humidifying the taken-in outside air.
Main heating device with variable heating capacity as regulator (4 ...)
(H), adiabatic humidifier with variable humidification capacity (W), cooling capacity
Variable cooling device (C), auxiliary with fine adjustment of heating capacity
Isothermal heating with heating device (RH) and fine adjustment of humidification capacity
At least one of the DSs is distributed in this order.
The temperature and humidity control program of the air conditioner (1)
A temperature and humidity controller (4...) Provided on the air conditioner (1) for recording.
To control the temperature / humidity by the performance of the air conditioner and the air conditioner (1)
Based on the target temperature and humidity of the conditioned air
With a combination of temperature and humidity controllers (4 ...)
Number of control areas (A₁~ A_Ten) Is the number of subdivisions of the psychrometric chart
When a control map (M) consisting of value data or formula data and the temperature and humidity of the outside air are input,
The outside air state point determined by the control area (A₁~ A_Ten)
Control area determination program (P
A) and each of the control areas (A₁~ A_Ten), The outside air condition
From the point to the state point of the target temperature and humidity of the conditioned air.
Transition in the heating direction along the iso-absolute humidity line on the psychrometric chart
Main heating operation line (H_l) And isenthal on the psychrometric chart
Adiabatic humidification operation line that changes in the humidification direction along the line
(W_l) And the cooling temperature of the cooling device (C) on the psychrometric chart.
Degree (Tc) of the cooling operation line (C_l)When,
Transition in the heating direction along the iso-absolute humidity line on the psychrometric chart
Auxiliary heating operation line (RH_l) And on the psychrometric chart
An isothermal humidification operation line (DS) that changes in the humidification direction along the
_l)), The necessary lines connected in this order
(J₁~ J_Ten) To set a forecast line setting program (P
J) and the state change set by the forecast line setting program (PJ).
Forecast line (J₁~ J _Ten), Based on the main heating operation line
(H_l), Adiabatic humidification operation line (W_l), Cooling operation line
(C_l), Auxiliary heating operation line (RH_l), Isothermal humidification operation line
(DS_l), The end point temperature of the air conditioner (1)
Heating device (H), adiabatic humidifying device (W), cooling device (C),
Target output of auxiliary heating device (RH) and isothermal humidification device (DS)
Target outlet temperature / humidity calculated as mouth temperature or target outlet humidity
Characterized in that a setting program (PD) is recorded
A recording medium on which a temperature and humidity control program is recorded.