JPH0875217A - Factory air-conditioning system - Google Patents

Abstract

PURPOSE: To control the speed and temperature of outlet air of an air- conditioning device so that the air hit a worker with desired speed and temperature in accordance with an ambient temperature and a distance between the worker and the air outlet port of the air-conditioning device. CONSTITUTION: An air-conditioning device 8 is provided with a motor ? controller 9, for changing the number of rotation of a motor 5, and a supplying air temperature sensor 4 as well as a temperature controller 10, for changing the opening degree of a temperature control valve 2, so that desired speed and temperature of air can be obtained at the position of a worker and the speed and the temperature of outlet air are set in accordance with values of the speed and temperature of outlet air from an air outlet port, which are operated employing a jet stream logical formula. According to this constitution, the speed and temperature of the outlet air of the air-conditioning device can be set so as to obtain the desired speed and temperature of outlet air at the position of the worker.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a factory air conditioning system.

[0002]

2. Description of the Related Art In recent years, there has been a demand for improvement in the working environment in factories, and in particular for air conditioning, there is a demand for improved comfort and ease of handling.

Conventionally, this type of factory air conditioning system is the 12th
The configuration was as shown in the figure. As shown in the figure, the air outlet 101 of the air conditioner 101 is provided with the air outlet 104 on the side surface or the lower surface of the air conditioning duct 103.

In the above structure, the conditioned air from the air conditioner 101 passes through the air conditioning duct 103 and is ejected from the air outlet 104 into the factory.

[0005]

In such a conventional factory air conditioning system, the conditioned air ejected from the air outlet 104 does not reach the worker, so that a sufficient cool feeling cannot be obtained or, conversely, the work can be performed. The air velocity of the conditioned air hitting a person was too fast, or the temperature of the air was too low, which resulted in excessive cooling. In addition, it has not been possible to easily set the blown-out conditioned air condition in accordance with the change in ambient temperature so that the wind speed and the wind temperature desired by the worker are obtained. Furthermore, it is difficult to determine an appropriate wind temperature value itself that makes the operator comfortable.
When the distance from the outlet 104 to the worker changes,
Since the wind speed and temperature that hit a person also change, the blowing air conditioning air condition must be changed each time, or when the amount of exercise changes due to changes in the work amount and work content of the worker, the appropriate air conditioning condition also changes. There was a problem that it would change.

SUMMARY OF THE INVENTION The first object of the present invention is to solve the above-mentioned problems, and it is a first object of the present invention to make an operator hit the conditioned air of a desired wind speed and temperature.

A second object is that the operator himself can easily set the desired wind speed and air temperature to hit the operator irrespective of changes in the ambient temperature, and control the blowout air conditioning air condition.

A third object is to set a sensible temperature desired by an operator to automatically determine an appropriate air temperature value and control the blown conditioned air condition accordingly.

A fourth object is to control the blown conditioned air condition so that the wind speed and air temperature can be maintained as set even when the distance between the worker and the air outlet changes.

A fifth object is to control the blown-out conditioned air condition so that the wind of the proper temperature and speed will always hit the worker even if the amount of activity of the worker changes.

[0011]

The first means for achieving the first object of the present invention is, in order from the intake port, a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and In an air conditioner having a connected fan and an air outlet, based on the ambient temperature T and the distance X from the air outlet to the person, the jet velocity theory V1 and the air temperature T1 hitting the person will be as desired according to the jet theory. A blower air velocity V2 and a blower air temperature T2 were determined, and a motor control device that controls the rotation speed of the electric motor according to the results, and a temperature control device that controls the temperature control valve to change the supply air temperature. It is configured.

A second means for achieving the second object is, in order from the intake port, a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and a blower. In an air conditioner having an outlet, a distance X from the outlet and a wind speed V1 corresponding to a person at that position,
Based on the input device A capable of inputting the air temperature T1, the input circuit A and the room temperature signal T from the room temperature sensor, the arithmetic circuit A for calculating the appropriate blowing air velocity V2 and the blowing air temperature T2 from the jet theory, and the calculation result, The motor control device controls the rotation speed of the electric motor, and the temperature control device controls the opening degree of the temperature control valve.

A third means for achieving the third object is, in order from the intake port, a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and a blower. In an air conditioner having an outlet, a sensible temperature input device capable of inputting a distance X from an outlet, a desired sensible temperature ET, and a desired wind speed V1 at that position, and an input signal thereof and a humidity signal at a worker position by a humidity sensor. An arithmetic circuit B for calculating an appropriate wind temperature T0 from the sensible temperature diagram based on H, a distance X between the wind temperature T0 and the input, and a wind speed V
1 and a calculation circuit A for calculating a proper blowing air velocity V2 and a blowing air temperature T2 based on the room temperature signal T from the room temperature sensor, and a motor control device for controlling the rotation speed of the electric motor based on the calculation result. And a temperature control device for controlling the opening of the temperature control valve.

A fourth means for achieving the fourth object is, in order from the intake port, a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and a person. In an air conditioner having an air outlet equipped with a position detection sensor, an input device B capable of inputting a wind speed V1 and a wind temperature T1 hitting a person, its input signal, and a distance signal from the person position detection sensor to the person Based on the room temperature signal T from X and the room temperature sensor, an arithmetic circuit C that calculates an appropriate blowing air velocity V2 and an blowing air temperature T2 from the jet theory, and a motor control device that controls the rotation speed of the electric motor from the calculation result. The temperature control valve has a temperature control device for controlling the opening of the temperature control valve.

A fifth means for achieving the fifth object is, in order from the intake port, a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an activity. In an air conditioner having an outlet with a quantity sensor, the distance X from the outlet and the desired sensible temperature E
T, and a sensible temperature input device capable of inputting a desired wind speed V1 at that position, and an appropriate wind temperature T0 is calculated from the sensible temperature diagram based on the input signal and the humidity signal H at the operator position by the humidity sensor. A calculation circuit B, a correction circuit for correcting the wind temperature T0 in accordance with a person's activity amount signal from the activity amount sensor, and the correction temperature, the input signal distance X, a desired wind speed V1, and a room temperature sensor. Based on the room temperature signal T, the arithmetic circuit A for calculating the proper blowing air velocity V2 and the blowing air temperature T2 based on the jet theory, and the operation result, the motor control device for controlling the rotation speed of the electric motor and the opening of the temperature control valve. The temperature control device for controlling the temperature is provided.

[0016]

The present invention has the structure of the above-mentioned first means.
The blowing amount and temperature of the blown air can be determined so that the operator is provided with the desired wind speed and temperature.

Further, by the constitution of the second means, the wind velocity and the wind temperature hitting the worker can be arbitrarily set by the worker himself, and the wind temperature of the blown air can be controlled without being influenced by the change of the ambient temperature. Is something that can be done.

Further, by the configuration of the third means, it is possible to determine the wind temperature value which can realize the sensible temperature actually expected by the operator.

Further, according to the structure of the fourth means, it is possible to change the air flow rate and temperature of the blown-out conditioned air according to the distance between the air outlet and the operator so that the operator always receives the wind speed and the air temperature according to the set values. It is possible.

Further, by the constitution of the fifth means, it is possible to control the blowing amount and temperature of the blown conditioned air so that the proper wind speed and temperature are always applied even if the amount of activity of the worker changes. Is.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG. As shown in the figure, in an air conditioner 8 having a heat exchanger 3 having a temperature control valve 2 in order from an intake port 1, a supply air temperature sensor 4, an electric motor 5 and a fan 6 connected to it, and an outlet 7. , Based on the ambient air temperature T and the distance X between the worker who works below the air conditioner 8 and the air outlet 7, the velocity and temperature of the wind hitting the worker become desired V1 and T1, respectively. The blowout wind speed V2 and the blowout wind temperature T2 are obtained from the theoretical jet flow equations (1) and (2) shown in FIG. 2, and the motor control device 9 and the temperature control valve 2 that control the rotation speed of the electric motor 5 according to the results. The temperature control device 10 for changing the opening degree is provided.

With the above structure, the jet flow theoretical formulas (1) and (2)
Enter the desired wind speed V1 and wind temperature T1 into the
And the blowout air temperature T2 are obtained, the motor control device 9 is operated, and the rotation speed of the electric motor 5 is changed.
A desired wind speed V1 can be obtained at the operator position by changing the amount of air blown from and changing the blowing air speed to V2. Further, by changing the opening degree of the temperature control valve 2 by the temperature control device 10 and setting the supply air temperature at the supply air temperature sensor 4 to T2, the wind temperature at the worker position can be set to the desired temperature T1. it can.

As described above, according to the factory air conditioning system of the first embodiment of the present invention, it is possible to apply the conditioned air of the desired wind speed and temperature to the worker, and the blowout air conditioning for doing so. Air conditions can be set.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. As shown in the figure,
In the air conditioner 8, based on the input device A11 that can input the desired air velocity V1 and air temperature T1 at the distance X and the operator position, and the input signal and the room temperature signal T from the room temperature sensor 12, the jet theoretical formula (1) According to the calculation circuit A13 for calculating the appropriate blowout air velocity V2 and blowout air temperature T2 from (2), and the motor control device 9 for controlling the electric motor 5 and the temperature control valve 2 according to the result. The temperature control device 10 is provided.

With the above structure, when the distance X between the outlet 7 and the worker, the desired wind speed V1 and the wind temperature T1 at the worker position are input from the input device A11, the input signal and the room temperature sensor 12 are input to the arithmetic circuit A13. Room temperature signal from T
Based on the jet flow equations (1) and (2), the appropriate blowing air velocity V2 and blowing air temperature T2 are calculated. In accordance with the calculation result, the motor control device 9 changes the rotation speed of the electric motor 5 to change the amount of air blown from the fan 6 to change the blowing speed to V2.
By doing so, the wind speed at the operator position can be controlled to V1, and further, the opening degree of the temperature control valve 2 is changed by the temperature control device 10, and the supply air temperature at the supply air temperature sensor 4 is T2. The air temperature at the operator's position by
It can be 1.

As described above, according to the factory air conditioning system of the second embodiment of the present invention, the operator can easily set the wind speed and the air temperature of the conditioned air that he / she wants to hit, regardless of changes in the ambient temperature, and at the same time, The blown air condition of the air conditioner can be controlled so that the air temperature becomes the air temperature.

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. 5, 6 and 7. As shown in the figure, in the air conditioner 8, the sensible temperature input device 14 capable of inputting the desired air velocity V1 and the sensible temperature ET at the distance X, the operator's position, its input signal, and the operator's position are installed. Based on the humidity signal H from the humidity sensor 15, an arithmetic circuit B16 for obtaining an appropriate wind temperature T0 from the sensible temperature diagram shown in FIG. 7, the distance X between the wind temperature T0 and the input, the wind speed V1, and the room temperature sensor 12. Room temperature signal T
Based on the above, the arithmetic circuit A13 for calculating the appropriate blowing air velocity V2 and the blowing air temperature T2 from the jet flow theoretical formulas (1) and (2).
Further, the motor control device 9 for controlling the electric motor 5 and the temperature control device 10 for controlling the temperature control valve 2 are provided according to the result.

With the above structure, when the distance X between the outlet 7 and the worker, the desired wind speed V1 of the worker and the sensible temperature ET are input from the sensible temperature input device 14, the signal input signals V1 and ET are output to the arithmetic circuit B16. Based on the humidity signal H at the operator's position from the humidity sensor 15, an appropriate air temperature T0 can be obtained from the sensible temperature diagram. Further, based on the air temperature T0, the input signals X, V1 and the room temperature signal T from the room temperature sensor 12, the appropriate air flow velocity V2 and air temperature T2 are calculated from the jet theoretical formulas (1) and (2). In accordance with the calculation result, the motor control device 9 changes the rotation speed of the electric motor 5, changes the amount of air blown from the fan 6, and sets the blowing wind speed to V2, thereby controlling the wind speed at the worker position to V1. Further, the opening of the temperature control valve 2 is changed by the temperature control device 10, and the supply air temperature sensor 4
The air temperature at the worker position can be set to T0 by setting the supply air temperature at T2 to T2.

As described above, according to the factory air conditioning system of the third embodiment of the present invention, by setting a desired sensible temperature, an appropriate wind temperature value that satisfies the comfort level is automatically determined. And at the same time can be controlled to the conditioned air conditions.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. 8 and 9. As shown in the figure,
In the air conditioner 8 having the human position detection sensor 17 at the outlet 7, an input device B18 capable of inputting a desired wind speed V1 and air temperature T1 at the operator position, its input signal and the human position detection sensor 17 Based on the distance signal X from the air outlet 7 to the worker and the room temperature signal T from the room temperature sensor 12, an appropriate blowout wind speed V2 and blowout air temperature T2 are calculated from the theoretical jet flow equations (1) and (2). An arithmetic circuit C19 and the motor control device 9 for controlling the electric motor 5 and the temperature control device 10 for controlling the temperature control valve 2 according to the result are provided.

With the above configuration, when the desired wind speed V1 and wind temperature T1 at the operator's position are input from the input device B18,
In the arithmetic circuit C19, its input signal, the room temperature signal T from the room temperature sensor 12, and the human position detection sensor 1
Based on the distance signal X between the air outlet 7 from 7 and the worker, an appropriate blowout air velocity V2 and blowout air temperature T2 are calculated from the theoretical jet equations (1) and (2). According to the calculation result, the rotation speed of the electric motor 5 is changed by the motor control device 9 to change the fan 6
It is possible to control the wind speed at the operator position to V1 by changing the amount of air blown from the blower and changing the blowing wind speed to V2. Further, the opening degree of the temperature control valve 2 is changed by the temperature control device 10, By setting the supply air temperature at the air temperature sensor 4 to T2, the air temperature at the worker position can be set to T1.

As described above, according to the factory air conditioning system of the fourth embodiment of the present invention, the blower outlet 7 is operated by the human position detecting sensor.
By automatically detecting the distance between the operator and the operator, even if the distance changes, the conditioned air having the wind speed and the air temperature according to the set value can be always applied to the operator.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. 7, 10 and 11. As shown in the figure, in the air conditioner 8 in which the activity amount sensor 20 is provided at the outlet 7, the distance X between the outlet 7 and the worker, the desired wind speed V1 at the worker position, and the sensible temperature ET can be input. An arithmetic circuit B16 for obtaining an appropriate wind temperature value T0 from the sensible temperature diagram shown in FIG. 7 based on the sensible temperature input device 14, its input signal, and the humidity signal H from the humidity sensor 15 installed at the operator's position. And a correction circuit 21 for correcting the wind temperature value T0 by the output signal from the activity amount sensor 20, the correction value T3, the input distance X, and the wind speed V.
1 and the room temperature signal T from the room temperature sensor 12, based on the jet theoretical formulas (1) and (2), an arithmetic circuit A13 for calculating an appropriate blowing air velocity V2 and blowing air temperature T2, and the electric motor according to the result. 5 for controlling the motor 5 and the temperature controller 1 for controlling the temperature control valve 2
0 is provided.

With the above structure, when the distance X between the outlet 7 and the worker, the desired wind speed V1 of the worker and the sensible temperature ET are input from the sensible temperature input device 14, the input signals V1 and ET and the humidity are inputted to the arithmetic circuit B16. Based on the humidity signal H at the operator position from the sensor 15, an appropriate air temperature value T0 can be obtained from the sensible temperature diagram. Further, the air temperature value T0 is corrected by the correction circuit 21 to T3 according to the change in the activity signal of the worker detected by the activity sensor 20. Next, in the arithmetic circuit A13, this air temperature value T
Based on 3 and the input signals X and V1 and the room temperature signal T from the room temperature sensor 12, the appropriate blowout air velocity V2 and blowout air temperature T2 are calculated from the jet flow theoretical formulas (1) and (2). In accordance with the calculation result, the motor control device 9 changes the rotation speed of the electric motor 5 to change the amount of air blown from the fan 6 and sets the blowing air velocity to V2, whereby the wind velocity at the operator position is V.
1 and further, the temperature control device 1
By changing the opening degree of the temperature control valve 2 to 0 and setting the supply air temperature at the supply air temperature sensor 4 to T2, the air temperature at the operator position can be set to T0.

As described above, according to the factory air-conditioning system of the fifth embodiment of the present invention, the activity amount sensor 20 detects the activity amount of the worker, so that even if the activity amount of the worker changes, it is always comfortable. The wind temperature value corresponding to the worker can be corrected so that the degree is satisfied.

[0036]

As is apparent from the above embodiments, according to the present invention, by using the jet theory to secure the desired wind speed and the wind temperature at the operator's position, it is necessary at the outlet. If you can determine the blowing air speed and the blowing air temperature, and set the air flow rate and air supply temperature of the air conditioner so as to satisfy those values, you can apply the wind speed and wind temperature to the operator as desired. It is possible to provide a factory air-conditioning system that is effective in preventing the air-conditioning air from hitting as in the above and conversely becoming too cold.

Further, by providing an input device capable of setting the wind speed and the air temperature desired by the operator and an arithmetic circuit of the jet theory having a room temperature sensor, the wind speed and the air temperature desired by the operator can be very easily achieved. Can be set to. Further, it is possible to provide a factory air-conditioning system that is effective in controlling the blowing air speed and the blowing air temperature from the air conditioner so that the wind speed and the air temperature always meet the set values without being affected by the change in the room temperature.

In addition, by providing a sensible temperature input device which allows the operator to input a sensible temperature desired by the operator, and an arithmetic circuit which can determine the temperature condition required to realize the sensible temperature from the sensible temperature diagram, It is possible to provide a factory air conditioning system that is effective in accurately and easily determining an appropriate air temperature value of conditioned air that can realize the comfort level required by an operator, and controlling the air velocity and the air temperature of the air blowing accordingly.

Further, by providing the human position detecting sensor at the air outlet of the air conditioner, even if the distance between the operator and the air outlet changes, the conditioned air having the set wind speed and temperature is always applied to the operator. A factory air conditioning system can be provided.

Further, the amount of work of the worker is changed by detecting the amount of work of the worker by the amount of activity sensor and providing a correction circuit for correcting the wind temperature value corresponding to the worker according to the amount of change. It is possible to provide a factory air-conditioning system that has the effect of always ensuring air-conditioning air conditions that satisfy the same degree of comfort even if the air-conditioning conditions desired by the operator change.

[Brief description of drawings]

FIG. 1 is a sectional view of a factory air conditioning system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a jet flow theory in the factory air conditioning system.

FIG. 3 is a sectional view of the factory air conditioning system of the second embodiment.

[Fig. 4] Control circuit diagram of the factory air conditioning system

FIG. 5 is a sectional view of a factory air conditioning system according to the third embodiment.

[Fig. 6] Control circuit diagram of the factory air conditioning system

[Figure 7] Perceived temperature diagram of the factory air conditioning system

FIG. 8 is a sectional view of a factory air conditioning system according to the fourth embodiment.

[Fig. 9] Control circuit diagram of the factory air conditioning system

FIG. 10 is a sectional view of a factory air conditioning system of the fifth embodiment.

[Fig. 11] Control circuit diagram of the factory air conditioning system

FIG. 12 is a sectional view of a conventional factory air conditioning system.

[Explanation of symbols]

 1 Intake Port 2 Temperature Control Valve 3 Heat Exchanger 4 Air Supply Temperature Sensor 5 Electric Motor 6 Fan 7 Air Outlet 8 Air Conditioner 9 Motor Control Device 10 Temperature Control Device 11 Input Device A 12 Room Temperature Sensor 13 Arithmetic Circuit A 14 Experienced Temperature Input Device 15 Humidity Sensor 16 Arithmetic Circuit B 17 Human Position Detection Sensor 18 Input Device B 19 Arithmetic Circuit C 20 Activity Sensor 21 Correction Circuit

Claims (5)

[Claims] 1. An air conditioner having a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an outlet in this order from the intake port, the ambient temperature T and the outlet. Based on the distance X from the person to the person, so that the wind speed V1 and the wind temperature T1 hitting the person are as desired.
A motor control device that determines the blowing wind speed V2 and the blowing wind temperature T2 from the jet flow theory and controls the rotation speed of the electric motor according to the results, and a temperature control device that controls the temperature control valve to change the supply air temperature. Factory air conditioning system. 2. An air conditioner having a heat exchanger equipped with a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an air outlet in order from the air inlet, and a distance X from the air outlet. , The wind speed V that corresponds to the person at that position
1. An input device A capable of inputting a wind temperature T1, an arithmetic circuit A for calculating an appropriate blowing air velocity V2 and a blowing air temperature T2 from a jet theory based on the input signal and the room temperature signal T from a room temperature sensor, and its calculation result. From the above, a factory air conditioning system having a motor control device that controls the rotation speed of the electric motor and a temperature control device that controls the opening degree of the temperature control valve. 3. In a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an air conditioner having a blowout port, in order from the intake port, the distance X from the blowout port and the desired value. Based on the sensible temperature ET and the sensible temperature input device capable of inputting the desired wind speed V1 at that position, and the humidity signal H at the operator position by the input signal and the humidity sensor, an appropriate wind temperature T0 is obtained from the sensible temperature diagram. An arithmetic circuit B for calculating, and an arithmetic circuit for calculating an appropriate blowing air velocity V2 and blowing air temperature T2 based on the jet theory based on the air temperature T0, the input distance X, the wind velocity V1 and the room temperature signal T from the room temperature sensor. A factory air conditioning system having a motor control device that controls the rotation speed of the electric motor and a temperature control device that controls the opening of the temperature control valve based on A and the calculation result. 4. An air conditioner having a heat exchanger having a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an outlet having a human position detection sensor in order from the intake port, Wind velocity V1 and wind temperature T1
Based on the input device B capable of inputting the input signal, the input signal, the distance signal X from the person position detecting sensor to the person and the room temperature signal T from the room temperature sensor, and the appropriate blowing wind speed V2 and blowing from the jet flow theory. A factory air conditioning system having a calculation circuit C for calculating the air temperature T2 and a motor control device for controlling the rotation speed of the electric motor based on the calculation result, and a temperature control device for controlling the opening degree of the temperature control valve. 5. An air conditioner having a heat exchanger equipped with a temperature control valve, a supply air temperature sensor, an electric motor and a fan connected thereto, and an air outlet equipped with an activity amount sensor in order from the air intake port. From the sensible temperature diagram, based on the sensational temperature input device that can input the distance X from the desired sensational temperature ET and the desired wind speed V1 at that position, and the input signal and the humidity signal H at the operator position by the humidity sensor. An arithmetic circuit B that calculates an appropriate air temperature T0, a correction circuit that corrects the air temperature T0 according to a person's activity amount signal from the activity amount sensor, and its correction temperature and the distance X that is the input signal. Based on the desired wind speed V1 and the room temperature signal T from the room temperature sensor, the blowing air speed V2 that is more appropriate than the jet theory
A factory air conditioning system having a motor control device for controlling the rotation speed of the electric motor and a temperature control device for controlling the opening degree of the temperature control valve based on a calculation circuit A for calculating the blowout air temperature T2 and the calculation result.