JPH0835702A - Air conditioning equipment - Google Patents

Abstract

(57) [Summary] [Structure] Detecting means 14a for detecting a plurality of types of environmental values ta, pa, tmrt, v, ψ related to thermal comfort of the air-conditioned area 1, and a plurality of types of the environmental values. A calculation means 14b for calculating the comfort index α set as a variable having a specific correlation based on the detection information, and some of environmental values v and ψ of plural kinds of environmental values are forcibly changed within a predetermined range. The changing means 4b, 16 and the adjusting means V1, V2 for adjusting the environmental values ta other than the environmental values v, ψ forcibly changed by the changing means 4b, 16 and the comfort index α calculated by the calculating means 14b are the target values. The control means 4a for controlling the adjusting means V1 and V2 is provided so as to obtain mα. [Effect] Some environment values among multiple kinds of environment values are positively and forcibly changed within a predetermined range. Therefore, while controlling the comfort index to reach the target value, it is possible to stimulate people in the area. In addition to being able to produce various air conditioning conditions, it is easy for many people in the area to feel comfortable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects a plurality of kinds of environmental values related to the thermal comfort of an air-conditioned area and sets a comfort index set as a variable having a specific correlation with those environmental values. The present invention relates to an air conditioning facility in a form in which an environmental value is calculated so that the calculated comfort index reaches a target value.

[0002]

2. Description of the Related Art Generally, air conditioning equipment of the above-mentioned form is
Detecting means for detecting multiple environmental values involved in the thermal comfort of the air conditioning target area, and comfort index set as a variable having a specific correlation with those environmental values are calculated based on the detection information of the detecting means It is conceivable that the calculation means, the adjustment means for adjusting the environment value, and the control means for controlling the adjustment means so that the comfort index calculated by the calculation means reaches the target value.

[0003]

However, according to the above-mentioned prior art, after the comfort index reaches the target value and a constant or substantially constant air conditioning state appears, the environmental value maintains the target value. For the insiders who have become accustomed to the air-conditioning state because it fluctuates only as much as possible, there is less stimulus given by the fluctuation of the environmental value, which may rather make it difficult to feel comfortable.

Further, there is an individual difference in the feeling of comfort felt by the insiders. For example, some insiders are sensitive to temperature changes as environmental values, and some insiders are sensitive to humidity changes as environmental values. Even if the adjusting means is controlled so that becomes the target value, and a constant or substantially constant air-conditioning state appears, depending on the environmental value adjusted for that reason, it may be easy for the insider to feel comfortable. In other words, there are some insiders who find it difficult to feel comfortable.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to improve the environment value to be adjusted so that the comfort index reaches a target value, thereby making It is to provide air conditioning equipment that makes it easy to feel comfortable.

A second object of the present invention is to make it possible to easily operate an air-conditioning facility which makes it easy for many people in the area to feel comfortable.

A third object of the present invention is to make it easy for many persons in the area to unconsciously feel a comfortable feeling.

[0008] A fourth object of the present invention is to make it easy for many people in the area to effectively feel the comfort.

[0009]

The characteristic configuration of the present invention for achieving the above-mentioned first object is a detecting means for detecting a plurality of kinds of environmental values involved in thermal comfort of an air-conditioning target area, and the above-mentioned plurality of detecting means. Computing means for computing a comfort index set as a variable having a specific correlation with the environmental value of the species based on the detection information of the detecting means, and a part of the environmental values of the plural types of environmental values within a predetermined range The changing means for forcibly changing the temperature inside the adjusting means, the adjusting means for adjusting an environmental value other than the environmental value forcibly changed by the changing means, and the adjusting means for adjusting the comfort index calculated by the calculating means to a target value. The control means for controlling is provided.

When the part of the environmental values is forcibly changed in a constant time period, the second object can be achieved.

The third object can be achieved when the part of the environmental values is continuously and forcibly changed.

The fourth object can be achieved when the partial environmental values are forcibly changed discontinuously.

[0013]

That is, paying attention to the fact that the comfort index is a variable having a correlation with a plurality of types of environment values, while forcibly varying some of the plurality of types of environment values within a predetermined range, The comfort index can be controlled so as to reach the target value by adjusting environment values other than the forcibly changed environment value.

When some of the environmental values are forcibly changed in a constant time period, the changing means can be easily operated and the operating mechanism of the changing means can be simplified.

When some of the environmental values are continuously and forcibly changed, some of the environmental values smoothly change, and it is difficult for a person in the area to feel a sense of discomfort.

When some of the environmental values are forcibly changed discontinuously, some of the environmental values change abruptly, and it is easy to give fresh stimulation to the person in the area.

[0017]

The air conditioner according to claim 1 positively and forcibly fluctuates a part of the plural environmental values within a predetermined range, so that the comfort index is controlled to reach the target value. However, it is possible to give a stimulus to the people in the area and to display various air-conditioning states, and it is easy for many people to feel a comfortable feeling.

In the air conditioner according to the second aspect of the present invention, the fluctuating means can be easily operated and the operating mechanism of the fluctuating means can be simplified. Therefore, it is easy to forcibly fluctuate the environmental value and it is easy for many people in the area to feel comfortable. The equipment can be operated easily.

In the air conditioner according to the third aspect of the present invention, it is difficult for the people in the area to feel a sense of incongruity, and therefore it is easy for many people in the area to unconsciously feel the comfort.

In the air conditioner according to the fourth aspect, it is easy to give a fresh stimulus to the people in the area, and therefore it is easy to effectively make many people in the area feel comfortable.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an air conditioning facility for controlling the temperature and humidity of indoor air in a target room 1 which is an air conditioning target area by a heat pump type air conditioner 2. The air conditioner 2 includes an outdoor unit 2a and an indoor unit 2b. There is provided a control device 4 which is divided into two parts and is connected by a crossover refrigerant pipe 3 and which controls the operation of the air conditioner 2.

The outdoor unit 2a has a first heat exchanger 5 for absorbing and radiating outside air OA, a refrigerant compressor 6, an accumulator 7, a liquid receiver 8 and a ventilation fan 9 for the first heat exchanger 5. In the indoor unit 2b, the second heat exchanger 10, the third heat exchanger 11, and the humidifier 12 are provided in the internal flow path of the return air RA from the target chamber 1 in the order of description. In addition to being installed side by side from the upstream side in the direction, an air supply fan 13 that supplies the temperature- and humidity-adjusted air to the target room 1 as the air supply SA for indoor environment adjustment is provided.

A part of the return air RA from the target chamber 1 is discarded as exhaust EA, and the remaining return air RA
The amount of outside air OA that is almost the same as the exhaust amount is mixed with the exhaust gas, and the mixture is sent to the indoor unit 2b to adjust the temperature and humidity. Is given.

In the target room 1, a temperature ta, a water vapor partial pressure pa, an average radiation temperature tmrt, an air flow velocity v, and a relative humidity ψ, which are a plurality of environmental values related to thermal comfort of the target room 1, are respectively set. An integrated sensor 14 that detects and calculates a PMV value α that is an example of a comfort index based on the detection result, and a target P
The first setter 15 for setting the MV value mα to be correctable / changeable
And the detected multiple environmental values ta, pa, tmrt,
The second setter 16 that sets the target values mv and mψ of the air flow velocity v and the relative humidity ψ that are a part of the environmental values of v and ψ so that they can be corrected and changed, and the human body state value of the person in the room. A third setter 17 for artificially setting the metabolic amount M indicating the activity state and the thermal resistance Icl of the clothing indicating the clothing state so as to be able to correct and change is provided, and the set metabolic amount M and the thermal resistance Icl are integrated sensors. 14 is input.

The controller 4 includes a first controller 4a for controlling the operating condition of the air conditioner 2 so that the PMV value α calculated by the integrated sensor 14 becomes the target PMV value mα, the detected relative humidity ψ and the detected value. A second control unit 4b that controls the operating state of the air conditioner 2 so that the air flow velocity v becomes the target values mφ and mv is provided, and the target PMV value mα set by the first setter 15 is provided.
Is input to the first controller 4a.

The PMV value α is a plurality of environmental values ta,
It is set as a variable having a specific correlation with pa, tmrt, v and human body state values M, Icl, and is specifically defined by the following [Equation 1] (International Standard ISO773).
0, see Air Conditioning Sanitation Engineering Handbook 11th edition).

[0027]

[Equation 1]

However, L: Human heat load [kcal / h · m ² ] M: Metabolism [kcal / h] W: External work [kcal / h] η: Efficiency of external work (fixed set value) ts: Skin temperature [° C] pa: Water vapor partial pressure [mmHg] Esw: Evaporative heat release due to sweating [kcal / h] Adu: Body surface area of human body [m ² ] (fixed set value) ta: Temperature (temperature) [° C] tcl: Surface temperature of clothing [° C] Icl: Thermal resistance of clothing (black value) [clo] fcl: Surface area of clothing of human body tmrt: Average radiation temperature [° C] hc: Convective heat transfer coefficient of human body [kcal / m ²・ H ・ ℃] v: Air velocity [m / s]

The PMV value α is an index characteristic of the PMV value α being 0 in an environment in which the ratio of people who feel comfortable among a large number of general subjects is maximum, whereas the PMV value α is uncomfortable on the low temperature side. PM increases as the proportion of people increases
The V value α decreases on the negative side, and the PMV value α increases on the positive side as the proportion of people who feel uncomfortable on the high temperature side increases.

The integrated sensor 14 detects the temperature ta, the partial pressure of water vapor pa, the average radiant temperature tmrt, the air flow velocity v, and the relative humidity ψ at a constant time interval as a detection unit 1 as a detection means.
4a and the latest temperature t detected by the detection unit 14a
a, water vapor partial pressure pa, average radiation temperature tmrt, gas flow velocity v
And the metabolic rate M set by the third setting device 17, the thermal resistance I of clothing
and a PMV value calculator 14b as a calculator for calculating the PMV value α based on cl, and the relative humidity ψ is detected as a calculated value from the detected temperature ta and the detected water vapor partial pressure pa, and the calculated PMV value α is the first control unit 4 each time calculation is performed.
The value is input to a and updated, and the detected air flow rate v and the detected relative humidity ψ are input to the second controller 4b and updated each time they are detected.

As shown in FIG. 2, the second setting device 16 has a target value mψ of the relative humidity ψ which is a part of the plural kinds of environment values ta, pa, tmrt, v, ψ. And the target value mv of the air flow velocity v are set as fluctuation values with the elapsed time t from the start of steady operation described later as a parameter, and the relative humidity ψ and the target value of the air flow velocity v from the elapsed time t. A second calculation unit 18 for calculating mψ and mv is provided,
The target values mψ, mv at the elapsed time t are calculated every constant time (for example, 5 minutes) after the start of the steady operation,
The calculation target values mφ and mv are calculated by the second control unit 4 each time the calculation is performed.
It is input to b and its value is updated.

The target value mψ of the relative humidity ψ is a constant time within a predetermined range (40% ≦ mψ ≦ 60% in the embodiment) using the elapsed time t (minute) after the start of steady operation as a parameter. It is set as a fluctuation value that continuously changes in a cycle (60 minutes in the embodiment), and specifically, it is set as shown in FIG.
As shown in, the variable value is set as mψ = (50 + 10SIN (2πt / 60))%.

The target value mv of the air flow velocity v is the elapsed time t from the start of the steady operation only in the cooling mode.
Within a predetermined range using (minutes) as a parameter (in the example,
0.10 m / s ≦ mv ≦ 0.15 m / s) is set as a fluctuation value that discontinuously fluctuates in a constant time period (60 minutes in the embodiment). Specifically, FIG. As shown, mV = 0.10 m / s and mv = 0.15 every 30 minutes after the start of the steady operation in the cooling mode.
It is set as a variation value that alternately switches to m / s.

When an air conditioning operation start command is given to the control device 4, the control operation is as follows.
a, the PMV value α becomes the target PMV value mα (for example, mα
= 0 or a range such as −0.5 ≦ mα ≦ + 0.5), the startup operation is performed to adjust the temperature ta of the target chamber 1 and the PMV value α is adjusted to the target PMV value mα. In addition to the control by the first control unit 4a, the second control unit 4b causes the relative humidity ψ and the air flow velocity v so that the detected relative humidity ψ and the detected air flow velocity v become the calculation target values mψ, mv in the cooling mode. Is performed, and in the heating mode, a steady operation is performed in which the relative humidity ψ is forcibly changed so that only the detected relative humidity ψ reaches the calculation target value mψ.

Next, the control operation of the control device 4 when the air conditioning operation start command in the cooling mode is given will be described. FIG. 1 shows a heat pump circuit during a startup operation in the cooling mode, in which the control device 4 causes the first heat exchanger 5 of the outdoor unit 2a to function as a condenser and the second heat exchanger of the indoor unit 2b. The refrigerant flow path of the heat pump is switched to a state in which 10 functions as an evaporator by valve operation, whereby the first heat exchanger 5 radiates heat to the outside air OA while the second heat exchanger 10 causes the target chamber to operate. Cooling temperature of the supply air SA to 1 is adjusted. The black-painted valves in the figure show the closed state.

That is, the high-pressure vapor refrigerant discharged from the compressor 6 (shown by the thick black line in the figure) is fed to the first unit of the outdoor unit 2a.
It is supplied to the heat exchanger 5 and condensed in the first heat exchanger 5, and then the condensed refrigerant (shown by a thick line with hatching in the figure) sent from the first heat exchanger 5 is first expanded. Valve e
The low-pressure vapor refrigerant supplied to the second heat exchanger 10 via x1 and evaporated in the second heat exchanger 10 and then sent out from the second heat exchanger 10 (indicated by a thick white line in the figure). Is sucked into the compressor 6 through the accumulator 7.

In the refrigerant flow path during the start-up operation, as shown in FIG. 3, the first control section 4a controls the PMV value α.
The output of the compressor 6 is adjusted in accordance with the deviation between the target PMV value mα and the target PMV value mα, and the cooling output of the second heat exchanger 10 is adjusted to reduce this deviation (that is, the temperature ta of the target chamber 1 is adjusted).
At the same time, the first expansion valve ex1 is adjusted so that the refrigerant superheat degree SH at the outlet of the evaporator detected by a separately provided sensor becomes the target superheat degree mSH.

A specific example of adjusting the PMV value is PMV.
In a situation where the value α is larger than the target PMV value mα (cooling start-up situation), the output of the compressor 6 is adjusted to the increasing side, so that the cooling output of the second heat exchanger 10 is adjusted to the increasing side. As a result, the temperature ta of the target chamber 1 decreases, the PMV value α decreases, and the PMV value α becomes the target PMV value m.
It approaches α.

When the PMV value α reaches the target PMV value mα during the start-up operation, the controller 4 thereafter
In order to stabilize the PMV value α to the target PMV value mα, the startup operation is continued for the set extension time Ta, and the state in which the PMV value α converges to the target PMV value mα is the set extension time Ta.
The start-up operation is shifted to the steady operation on condition that the temperature is maintained for the entire period.

In the steady operation in the cooling mode following the start-up operation, the controller 4 controls the first heat exchanger 5 of the outdoor unit 2a and the third heat exchange of the indoor unit 2b as shown in FIG. The refrigerant flow path of the heat pump is switched by valve operation so that each of the condensers 11 functions as a condenser and the second heat exchanger 10 of the indoor unit 2b functions as an evaporator, whereby the first heat exchange is performed. While supplying heat to the outside air OA through the device 5, the second heat exchanger 10 cools and dehumidifies the supply air SA to the target chamber 1, and the third heat exchanger 11 regenerates the cooled and dehumidified supply air SA. Adjust the heat temperature.

That is, the high-pressure vapor refrigerant (black thick line) discharged from the compressor 6 is used as the first heat exchanger 5 of the outdoor unit 2a.
And the third heat exchanger 11 of the indoor unit 2b are separately supplied and condensed in the first and third heat exchangers 5 and 11, and subsequently sent from the first and third heat exchangers 5 and 11. First, after condensing the condensed refrigerant (thick line with hatching)
It is supplied to the second heat exchanger 10 via the expansion valve ex1 and evaporated in the second heat exchanger 10, and then the second heat exchanger 1
The low-pressure vapor refrigerant (white thick line) sent from 0 is sucked into the compressor 6 via the accumulator 7.

During the steady operation, as shown in FIG. 5, the control by the second controller 4b is performed in addition to the control by the first controller 4a.

The control by the second control unit 4b during steady operation is performed by the compressor 6 according to the deviation between the detected relative humidity ψ and the calculated target value mψ each time the calculated target values mψ, mv are updated.
Is adjusted to reduce the deviation of the relative humidity ψ to adjust the cooling / dehumidifying output of the second heat exchanger 10 (that is,
The relative humidity ψ of the target chamber 1 is adjusted), and the air flow velocity v is adjusted according to the deviation between the detected air flow velocity v and the calculation target value mv.
The number of revolutions of the air supply fan 13 is adjusted to reduce the deviation.

When the relative humidity ψ and the air flow velocity v are adjusted to the calculated target values mψ, mv, the refrigerant superheat degree SH at the evaporator outlet detected by the other sensor is controlled by the first controller 4a. The first expansion valve ex1 is adjusted so that the target superheat degree mSH becomes the target superheat degree mSH, and the first flow rate control valve V1 and the second flow rate control valve V1 are set in accordance with the deviation between the PMV value α and the target PMV value mα
The reheat output of the third heat exchanger 11 is adjusted so that the PMV value α is maintained at the target PMV value mα by adjusting the opening ratio with the flow rate adjusting valve V2 (that is, the temperature ta of the target chamber 1 is adjusted. )
To do.

A specific example of adjusting the PMV value is PMV.
When the value α tends to decrease below the target PMV value mα, the opening ratio between the first flow rate adjusting valve V1 and the second flow rate adjusting valve V2 is adjusted to the side that increases the opening degree of the second flow rate adjusting valve V2. As a result, the reheat output of the third heat exchanger 11 is adjusted to the increasing side, which raises the temperature ta of the target chamber 1 to increase the PM.
The V value α increases, and the PMV value α is maintained at the target PMV value mα.

The steady operation is continued until the operation stop command is given.

In the steady operation in the cooling mode, the output control of the compressor 6 by the second controller 4b and the air supply fan 1 are performed.
By adjusting the rotation speed of 3, plural kinds of environment values ta, pa,
The relative humidity ψ which is a part of the environmental value of tmrt, v, ψ and the air flow velocity v are within a predetermined range and at a constant time period, the relative humidity ψ is continuous and the air flow velocity v is discontinuous. The first flow rate adjusting valve V by the first controller 4a while forcibly changing to
By controlling the opening ratio between the first and second flow rate adjusting valves V2, the temperature ta, which is an environmental value other than the relative humidity ψ and the air flow velocity v, is adjusted to control the PMV value α to the target PMV value mα. The form is adopted.

Therefore, in the steady operation in the cooling mode, the second setter 16 and the second controller 4b function as a changing means for forcibly changing the relative humidity ψ and the air flow velocity v within a predetermined range. The two flow rate adjusting valves V1 and V2 function as adjusting means for adjusting the temperature ta, and the first control unit 4a controls the PM
The PMV value α calculated by the V value calculation unit 14b is the target PMV.
It functions as control means for controlling the first and second flow rate adjusting valves V1 and V2 so that the value becomes mα.

Next, the control operation of the control device 4 when an air conditioning operation start command in the heating mode is given will be described.

FIG. 6 shows the heat pump circuit in the heating mode, in which the control device 4 causes the first heat exchanger 5 of the outdoor unit 2a to function as an evaporator and the second heat exchanger 10 of the indoor unit 2b. The refrigerant flow path of the heat pump is switched to a state of functioning as a condenser by valve operation, whereby the first heat exchanger 5 absorbs the outside air OA through the air while the second heat exchanger 10 moves to the target chamber 1. Air supply SA
After the start-up operation for adjusting the heating temperature is performed, the operation shifts to the steady operation in which the humidity is adjusted by the humidifier 12.

That is, the high-pressure vapor refrigerant (thick black line) discharged from the compressor 6 is transferred to the second heat exchanger 1 of the indoor unit 2b.
0, and the condensed refrigerant (thick line with hatching) sent out from the second heat exchanger 10 is first condensed via the second expansion valve ex2. It is supplied to the exchanger 5 and evaporated in the first heat exchanger 5, and then the low-pressure vapor refrigerant (white thick line) sent from the first heat exchanger 5 is sucked into the compressor 6 via the accumulator 7. Let

In the startup operation in the heating mode,
The first control unit 4a controls the PMV value α and its target PMV value mα.
The output of the compressor 6 is adjusted in accordance with the deviation between and, the heating output of the second heat exchanger 10 is adjusted to the side that reduces this deviation (that is, the temperature ta of the target chamber 1 is adjusted), and The second expansion valve ex2 is adjusted so that the refrigerant superheat degree SH at the evaporator outlet detected by the sensor becomes the target superheat degree mSH.

When the PMV value α reaches the target PMV value mα during the start-up operation, the control device 4 thereafter
In order to stabilize the PMV value α to the target PMV value mα, the startup operation is continued for the set extension time Ta, and the state in which the PMV value α converges to the target PMV value mα is the set extension time Ta.
The start-up operation is shifted to the steady operation on condition that the temperature is maintained for the entire period.

In the steady operation in the heating mode subsequent to the start-up operation, the humidifier 12 also operates and the second controller 4b
Is the detected relative humidity ψ each time the calculation target value mψ is updated.
According to the deviation between the calculated target value mψ and the relative humidity ψ, the humidification output of the humidifier 12 is adjusted to reduce the deviation of the relative humidity ψ (that is, the target room relative humidity ψ is adjusted). When adjusted to the value mφ, the second expansion valve ex2 is controlled by the first control unit 4a so that the refrigerant superheat degree SH at the evaporator outlet detected by another sensor becomes the target superheat degree mSH.
The output of the compressor 6 is adjusted in accordance with the deviation between the PMV value α and its target PMV value mα, as in the startup operation, and the second heat exchanger is arranged to reduce this deviation. 10 heating output is adjusted (that is, the temperature ta of the target chamber 1
Adjust).

In the steady operation in the heating mode, the humidification output of the humidifier 12 is adjusted by the second controller 4b so that a part of the environmental values ta, pa, tmrt, v, ψ can be adjusted. While forcibly varying a certain relative humidity ψ within a predetermined range and at a constant time period, the first
A control mode is adopted in which the temperature ta, which is an environmental value other than the relative humidity ψ, is adjusted by adjusting the output of the compressor 6 by the control unit 4a, and the PMV value α is controlled to the target PMV value mα.

Therefore, in the steady operation in the heating mode, the second setter 16 and the second controller 4b function as a changing means for forcibly changing the relative humidity ψ within a predetermined range, and the compressor 6 adjusts the temperature ta. Functioning as an adjusting means for
The control unit 4a calculates the PM calculated by the PMV value calculation unit 14b.
It functions as control means for controlling the compressor 6 so that the V value α becomes the target PMV value mα.

The target PMV set in the first setter 15
The values mα and the target values mψ, mv of the relative humidity ψ and the air flow velocity v set in the second setter 16 are not appropriate, and the environment of the target room 1 adjusted by the operation of the air conditioner 2 is true to the occupants. If the desired environment is deviated, the target PMV value mα, the relative humidity ψ, and the target values mψ, mv of the air flow velocity v can be corrected or changed by manual operation on the first and second setting devices 15, 16. , It is possible to get close to the environment that the people in the room truly desire.

[Other Embodiments] 1. The comfort index set as a variable having a specific correlation with a plurality of types of environmental values is not limited to the PMV value, and the degree of comfort can be expressed as a specific correlation with a plurality of types of environmental values. If so, variables having any form of correlation with those environmental values can be adopted as the comfort index. 2. The environmental value to be detected is not limited to temperature, water vapor partial pressure, average radiation temperature, air flow velocity, relative humidity, etc., and may be appropriately selected according to the form of the comfort index to be adopted. 3. The comfort index may be set such that the human body state value is not treated as a parameter or the human body state value is treated as a mere fixed value. 4. The environmental value that is forcibly changed within the predetermined range is not limited to the relative humidity, the air flow velocity, and the like, and may be selected from a plurality of environmental values to be detected according to the air conditioning conditions and the like. 5. The environmental value adjusted so that the comfort index becomes the target value may be a plurality of types of environmental values as long as they are environmental values other than the environmental values that are forcibly changed by the changing means. 6. When there are a plurality of types of environment values that are forcibly changed within a predetermined range, the change periods may be different from each other. 7. The environmental value that is forcibly changed within a predetermined range may be forcibly and irregularly changed over time. 8. The changing means for forcibly changing the environmental value within a predetermined range is
The operating state of the changing means may be selectively switched to a plurality of preset operating states regardless of the detection result of the environmental value to forcibly change the environmental value within a predetermined range. 9. You may implement by providing the selection means which can select arbitrarily the environmental value forcibly changed within the predetermined range.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a device configuration diagram showing a refrigerant flow path during a startup operation in a cooling mode.

FIG. 2A is a graph showing an example of setting a target value mψ of relative humidity ψ. FIG. 2B is a graph showing an example of setting a target value mv of air flow velocity v.

FIG. 3 is a control flowchart at the time of startup operation in the cooling mode.

FIG. 4 is a device configuration diagram showing a refrigerant flow path during steady operation in a cooling mode.

FIG. 5 is a control flowchart during steady operation in cooling mode.

FIG. 6 is a device configuration diagram showing a refrigerant flow path in a heating mode.

[Explanation of symbols]

 1 Air-conditioning target area 4a Control means 4b Fluctuation means 6 Adjusting means 14a Detecting means 14b Computing means 16 Fluctuation means V1 Adjusting means V2 Adjusting means α Comfort index mα Target value ta Environmental value pa Environmental value tmrt Environmental value v Environmental value ψ Environmental value

Claims (4)

[Claims] 1. A detection means (14a) for detecting a plurality of types of environmental values (ta, pa, tmrt, v, ψ) involved in thermal comfort of an air-conditioning target area (1), and the plurality of types of environments. Value (ta, pa, tmrt, v, ψ)
And a computing means (14b) for computing a comfort index (α) set as a variable having a specific correlation based on the detection information of the detecting means (14a), and the plurality of types of environmental values (ta, pa, tmrt). , V, ψ)
Fluctuating means (4b, 16) for forcibly changing a part of the environmental values (v, ψ) within a predetermined range, and the environmental value (v, ψ) forcibly changed by the fluctuating means (4b, 16). Other than the adjusting means (6, V1, V2) for adjusting the environmental value (ta), and the adjusting means (a) so that the comfort index (α) calculated by the calculating means (14b) becomes the target value (mα). 6, V1,
V2) control means (4a) for controlling the air conditioning equipment. 2. The air conditioning equipment according to claim 1, wherein the part of the environmental values (v, ψ) is forcibly changed in a constant time period. 3. The air conditioning equipment according to claim 1, wherein the partial environmental value (ψ) is continuously and forcibly changed. 4. The air conditioning equipment according to claim 1, wherein the partial environmental value (v) is discontinuously and forcibly changed.