JPH09184649A - Energy saving air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain energy conservation and comfortableness with regard to heating and cooling by installing a human body detecting sensor in a room and switching a heating/cooling system to a stationary mode at the time of 'off' and to a person-in mode at the time of 'on'. SOLUTION: Human body detecting sensors S1 -S3 for detecting a human being in each of rooms R1 -R3 are installed. A room temperature controlling means 33 and a ventilating means 34 are respectively provided in independent control panels. The room temperature controlling means 33 is provided with an air conditioning strong/weak mode switching means 35 corresponding to the rooms R1 -R3 which means 35 can set a stationary mode setting value t1 and a person-in mode setting value t2 . The air conditioning strong/weak mode switching means 35 controls flow rate of cold/hot water by controlling a motor 19 of a pump for supplying cold/hot water, and gives a command of driving the motor 19 at the stationary mode setting value t1 at the time of 'off' and at the person-in mode setting value t2 at the time of 'on'. Thus, energy conservation and comfortableness can be planned with regard to heating and cooling and ventilating so that life of a house is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy-saving air conditioning equipment applied to a highly heat-insulated and airtight house such as for cold regions.

[0002]

2. Description of the Related Art Detached houses, especially detached houses for cold regions, are being highly insulated and airtight for the purpose of energy saving and comfort. On the other hand, as a heating and cooling facility for a detached house, a heat pump type air conditioner installed in each room is mainly used, and in some cases, a multi-type air conditioner capable of cooling and heating a large number of rooms at the same time is used. A ceiling radiant cooling and heating system has also been developed for the purpose of comfortable cooling and heating. However, since air-conditioning control uses a method in which the resident turns on the switch for each room when entering the room, for example, when heating is taken as an example, the room temperature is always very low, and the room temperature rapidly increases when entering the room. You will be heating. Therefore, not only is the room not immediately warmed up and the comfort is poor, but also rapid heating is repeated each time the user enters the room, resulting in poor energy use efficiency.

Further, in the above-mentioned highly heat-insulated and airtight house, forced ventilation is important for comfortable habitability and improvement of building life. It is a general method to turn on and off by operating a switch. There is a way to keep ventilation and air conditioning on all the time,
This is also a waste of Ekirgi. In addition, when the room is operated to switch the degree of air conditioning and ventilation to a weak state when leaving the room, the operation is troublesome. Furthermore, in the case of using ventilation and cooling and heating together, in an air conditioner that blows out general cold and warm air, the air flow for ventilation and the air flow for cooling and heating interfere with each other, and comfortable cooling and heating and ventilation effects by appropriate control are provided. Hard to get. For example, airflow for ventilation and cooling and heating can cause discomfort to the occupants.

An object of the present invention is to provide an air-conditioning facility which can save energy and comfort for air conditioning in a detached house. Another object of the present invention is to save energy and improve comfort both for heating and cooling and for ventilation. Still another object of the present invention is to provide an energy-saving air conditioning equipment which has less problems of interference between cooling and heating and ventilation, can perform appropriate control, and can further improve comfort by radiant cooling and heating without convection. Is.

[0005]

SUMMARY OF THE INVENTION The present invention provides an air conditioner provided with a heat insulating material for insulating the entire house from the outside, and an air conditioner for individually heating and cooling each room of the house. The following configuration is used. A human body detection sensor is provided in each room, and an air conditioning intensity mode switching means that responds to the sensor is provided. The air-conditioning strength / weakness mode switching means, for each room, switches the cooling / heating apparatus to a steady mode when the human body detection sensor is off, and switches the room heating mode to an entry mode that is in a stronger operating state than the steady mode. According to this configuration, when there is no person in the house, the air conditioning strength mode switching means is in the steady mode for any room, and the set weak cooling and heating is continued. When a person enters any of the rooms, the air conditioning strength mode switching means is switched to the strong operation mode entry mode based on the entry information from the human body detection sensor. In this way, the heat insulation of the entire house is secured as much as possible by the heat insulating material, and by performing the minimum cooling and heating even when there are no people, the temperature difference between the temperature when entering the room and the target temperature is small. It requires less total energy consumption. This was confirmed as a result of various experiments. In the air-conditioning equipment with the above-mentioned configuration, a ventilation device is provided for forced ventilation so that each room of the house can be individually adjusted in ventilation volume, and for each room, the ventilation device is set to a steady mode when the human body detection sensor is turned off and the steady state is set when the human body detection sensor is turned on. It is preferable to provide ventilation strong / weak mode switching means for switching to the entry mode in which the ventilation amount is larger than the mode. In this way, by ventilating to some extent even when there are no people, comfort when entering the room is improved and the life of the house is also improved. In the above configuration, a dirt detection sensor for detecting a predetermined carbon dioxide concentration is provided in any one of the rooms, and the ventilation amount of the ventilation device is determined according to the detection output of the dirt detection sensor during the entry mode of the ventilation intensity mode switching means. It is also possible to provide a stain response control means for changing the. As a result, ventilation according to dirt in the room can be appropriately performed, and occupant comfort is further improved.

[0006] It is preferable that the cooling and heating device is a ceiling radiant cooling and heating device that performs radiative cooling and heating via a heat radiation panel provided on a ceiling surface. It is assumed that the heat dissipation panel has a flow path for a heat medium formed on the back surface or inside thereof, for example. In that case, the air-conditioning intensity mode switching means may be means for controlling the flow rate of the heat medium flowing in the flow path of the heat dissipation panel. In this way, the ceiling radiant cooling / heating device can perform comfortable cooling / heating without convection. In addition, there is no problem of interference between the air flow for ventilation and the air flow for heating and cooling, and proper control is performed even if cooling and heating and ventilation are controlled independently.
Easy to control.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. The house 1 is a two-story detached house, and is provided with a heat insulating material 6 on the entire outer wall, roof, and floor to heat-insulate the entire building, thereby providing a highly heat-insulated and air-tight house. Multiple rooms R (R ₁ ~
R ₃ ) is provided. 2 is a perspective view of each room R as seen from the inside, and FIG. 3 is a bottom view of the ceiling surface thereof. The ceiling surface 2 of the room R is a radiant cooling / heating ceiling part which is composed of face panels 3a and 3b on the periphery and a plurality of ceiling radiant panels 4 arranged in parallel at the center. Ventilation slits 5a, 5b are provided between the radiant cooling / heating ceiling portion and the face panels 3a, 3a on both sides, and extend over substantially the entire length of the ceiling surface. The slits 5a and 5b are formed in the ventilation chamber 7 provided in the ceiling.

The ceiling radiating panel 4 is shown in FIGS. 4 (A) and 4 (B).
As shown in FIG. 1, a heat dissipation plate 11 has a lower surface to which a cloth 12 is attached, and an upper surface to which a heat insulating material 13 such as glass wool is laminated. The heat radiating plate 11 is made of a metal plate made of a highly heat conductive material, and in this example, two aluminum plates are laminated to form a heat medium passage 14 formed of an expansion tube inside. Connection ports 14 a are provided at both ends of the heat medium flow passage 14. The heat medium flow passage 14 may be configured by a pipe attached to the upper surface of the heat dissipation plate 11 as shown in FIG. The heating medium flow path 14 of the ceiling radiating panel 4 is provided for each room R in the supply side pipe 1 shown in FIG.
5 and a return side pipe (only part of which is shown) 16 are connected to a cold / hot water source 17 which is a heat medium supply source. A pump 18 is interposed between the supply side pipe 15 and each pump 18
Is driven by a motor 19 whose speed can be controlled by inverter control or the like. A cooling and heating device 20 including a ceiling radiant cooling and heating device that individually cools and heats each room R (R _{1 to} R ₃ ) by the ceiling panel 4, the pipes 15 and 16, the cold / hot water source 17, the pump 18, and the motor 19. Is configured.

One of the slits 5a on the ceiling surface 2 of each room R
Serves as an air supply slit, and the other slit 5b serves as an exhaust slit. The air supply slit 5a is provided with one blower 23 through the duct 21 and the branch chamber 22.
The exhaust slit 5b is connected to the
It is connected to the blower 25 of the stand. The upper air supply path of the air supply side blower 23 and the lower air supply path of the exhaust air blower 25 are connected to the outdoor air supply port and the outdoor air exhaust port via the heat exchanger 26, The heat exchange between the supply air and the exhaust air is performed by 26. The air supply duct 21 has a main duct part connected to the branching chubber 22 as two systems for the first floor and the second floor, and is branched from the main duct part to the air supply slit 5a of each room R for each floor. is there. A pressure sensor 27 for detecting static pressure inside the branch chamber 22 is provided.
The target air volume is compared with the blower 2 by comparing the pressure detection value of 7 with the set value.
A static pressure control means 29 for controlling the motor 28 of the blower 23 is provided so as to be discharged from the blower 3. For each room R, dampers 30 and 31 are provided respectively in the air supply side branch duct part connected to the air supply slit 5a and the exhaust side branch duct part connected to the exhaust slit 5b. Each of the dampers 30 and 31 can be adjusted to an arbitrary opening by driving a motor or the like. These slits 5a, 5
b, dampers 30, 31, ducts 21, 24, blower 2
A ventilation device 32 for individually forcedly ventilating each room R is constituted by 3, 25 and the like.

The control system will be described. A human body detection sensor S ₁ for detecting the presence of a person inside each of the rooms R _{1 to} R ₃
~ S ₃ is provided in each room, and a predetermined room R ₁ to be a bedroom
A stain detection sensor SC for detecting carbon dioxide is provided in the. The room temperature control means 33 and the ventilation control means 34 are each provided on an independent control panel or provided on the same control panel, and each is composed of an electric circuit or the like in which an electronic circuit and a relay circuit are combined. Room temperature control means 33,
Each room R _{1 to} R ₃ has an air conditioning strength mode switching means 35 corresponding thereto, and these means 35 are set with a steady mode set value t1 and an entry mode set value t2. These air-conditioning strength / weakness mode switching means 35 are means for controlling the flow rate of the cold / warm water sent to the ceiling radiation panel 4 by controlling the motor 19 of the pump 18 for supplying the cold / hot water, and the corresponding rooms R _{1 to} R ₃ are controlled. The outputs of the human body detection sensors S _{1 to} S ₃ are monitored, and when the sensors S _{1 to} S ₃ are off, the motor 19 is driven at the steady mode setting value t1 and when the sensors S _{1 to} S ₃ are on, the motor 19 is driven at the entry mode setting value t2. Give orders.

The ventilation control means 34 has a ventilation intensity mode switching means 36 corresponding to each of the rooms R _{1 to} R ₃ .
The steady mode setting value Q1 and the entry mode setting value Q2 are set in these means 36. These ventilation strength / weakness mode switching means 36 are means for controlling the ventilation flow rate by controlling the dampers 30, 31 provided in the branch ducts of the ventilation slits 5a, 5b, and the corresponding room R ₁
Monitoring the output of the human body detection sensor S ₁ to S ₃ of to R _3, at the time of off of the sensor S ₁ to S ₃ open damper 30 and 31 to an opening corresponding to the steady-state mode setting value Q1, when on the entry mode The dampers 30 and 31 are opened to the opening degree corresponding to the set value Q2. In addition, the ventilation control means 34 has a dirt response control means 37.
This means 37 is provided to open the dampers 30 and 31 according to the gas concentration value obtained from the gas sensor SC when the ventilation strength mode switching means 36 of the room R ₁ which is the bedroom is in the entry mode. Gives a command to change the angle. The stain response control means 37 is provided with a switch (not shown) for switching between a functional state and a non-functional state.

The operation of the above configuration will be described. When there is no person in the house 1, each air conditioning strong / weak mode switching means 35 is in the steady mode for any of the rooms R _{1 to} R ₃ , and the set weak cooling / heating is continued. FIG. 5 shows an example during heating, and the amount of hot water supplied to the ceiling radiating panel 4 by the motor 19 is controlled so that the room temperature corresponds to the steady mode set value t1. Further, at this time, each ventilation strong / weak mode control means 36 is also in the steady mode, and the openings of the dampers 30 and 31 are adjusted so that the ventilation of the flow rate of the steady mode set value Q1 is performed. The ventilation amount at this time is, for example, such that about 1/2 of the room volume is ventilated in one hour. When a person enters any one of the rooms R _{1 to} R ₃ , the human body detection sensor S ₁ to
By entering information by S _3, the room R ₁ to R ₃ of the air conditioning strength mode switching means 35 and ventilation intensity mode switching means 36 is switched to enter the mode of strong operating state. As a result, the flow rate of cold / hot water supplied to the ceiling radiating panel 4 by the pump 18 increases, and cooling / heating is enhanced. As a result, during heating, for example, the room temperature rises until the temperature reaches the temperature corresponding to the entry mode setting value t2 as shown by the curve a in FIG. Further, the openings of the dampers 30 and 31 of the rooms R _{1 to} R ₃ are increased, and the ventilation amount from the ventilation slits 5a and 5b also increases. For example, the ventilation volume at this time is set to the extent that ventilation for the room volume is performed in one hour. Room R ₁ due to leaving
~ When no one is inside R ₃ , the human body detection sensor S
The exit information _{which 1} to S ₃ are obtained by turning off, room temperature control and ventilation control is returned to the original steady mode.

In this manner, the heat insulating property of the entire house 1 is secured as much as possible by the heat insulating material 6, and the minimum cooling and heating is performed even when there are no people, so that the temperature when entering the room and the target temperature Since the temperature difference between and is small, the total energy consumption can be small. In addition, as described above, ventilation to some extent is performed even when no one is present, which improves comfort when entering a room and also extends the life of the house. If the dirt response control means 37 is turned on at the time of entering the room, the ventilation value is insufficient or excessive due to the detection value of the dirt detection sensor SC while the ventilation is performed at the steady mode setting value Q1. Is determined, and the opening degrees of the dampers 30 and 31 are adjusted so that the ventilation amount corresponds to the dirt detection value. In addition, since this energy-saving air conditioning equipment performs radiant cooling and heating via the heat radiation panel 11 of the ceiling radiating panel 4, it is possible to perform comfortable cooling and heating without convection in the room and without making people feel the air flow. Moreover, there is little problem of interference between the ventilation flow between the slits 5a and 5b and the indoor air flow associated with heating and cooling, and cooling and heating and ventilation can be easily adjusted to appropriate values.

FIG. 6 shows another embodiment of the present invention. In this example, the ceiling surface of the room R is partitioned by a plurality of functional chambers 41 arranged in a matrix, and each functional chamber 41 is provided with a functional unit 42 that performs cooling / heating, dehumidification, air cleaning, and the like. The lower surface of the functional chamber 41 is covered with a functional film 45 such as a breathable cloth. One of the functional chambers 41 is an air supply chamber or an exhaust chabber that communicates with the outside by a duct. The energy-saving air conditioning equipment of the present invention can also be applied to air conditioning equipment equipped with the cooling and heating device and the ventilation device of such a configuration.

[0015]

Industrial Applicability The present invention provides an air conditioner provided with a heat insulating material for insulating the entire house from the outdoors, and an air conditioner for cooling and heating each room of the house so that the temperature of each room can be adjusted individually. A human body detection sensor is provided in each room, and each room is provided with an air conditioning strong / weak mode switching means that switches the heating / cooling device to a steady mode when the human body detection sensor is off and switches to a room entry mode that is a stronger operation state than the steady mode when the human body detection sensor is on. Therefore, energy saving and comfort for cooling and heating can be obtained. In the ventilator with this configuration, a ventilator is provided for forced ventilation of each room so that the ventilation rate can be adjusted individually.For each room, the ventilator is in the steady mode when the human body detection sensor is off and more than when the human body detection sensor is on. When the ventilation strong / weak mode switching means for switching to the large entry mode is provided, energy saving and comfort can be improved for both cooling and heating and ventilation, and the life of the house can be extended. In the case where a dirt detection sensor for detecting the carbon dioxide concentration is provided in any one of the rooms and a dirt-corresponding control means for changing the ventilation volume of the ventilation device in accordance with the detection output of the dirt detection sensor in the entry mode is actually provided, Appropriate ventilation is performed according to the air pollution in the room, further improving ventilation comfort. When the cooling and heating device is a ceiling radiant cooling and heating device that performs radiant cooling and heating via a heat dissipation panel provided on the ceiling surface, radiation with no convection can be performed with appropriate control because there is little problem of interference between cooling and heating. Comfort can be further improved by air conditioning. When the radiant panel forms a flow path for the heat medium and the air-conditioning strength mode switching means is a means for controlling the flow rate of the heat medium, the radiant cooling and heating with a simple structure and its steady mode and entry mode are provided. You can switch between and.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a conceptual configuration of energy-saving air conditioning equipment according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the inside of the room of the energy-saving air conditioning equipment.

FIG. 3 is a bottom view of the ceiling.

FIG. 4A is a cutaway plan view of a ceiling radiating panel, and FIG.
Is a partially enlarged side view of the same, and (C) is a partially cutaway side view of another example of a ceiling radiation panel.

FIG. 5 is an explanatory diagram showing an example of a change in room temperature when changing modes.

FIG. 6 is a perspective view showing the inside and the ceiling of the energy-saving air conditioning equipment according to another embodiment of the present invention.

[Explanation of symbols]

1 ... Housing, 2 ... Ceiling, 4 ... Ceiling radiation panel, 5a, 5b
... slits, 6 ... heat insulating material, 11 ... heat dissipation plate, 14 ... heat medium flow path, 15 ... piping, 17 ... cold / hot water source, 18 ... pump, 19
... Motor, 20 ... Air conditioner, 23 ... Blower, 30, 3
1 ... damper, 32 ... ventilator, 35 ... air conditioner intensity mode switching unit, 36 ... ventilation intensity mode switching means, 37 ... dirt response control means, R ₁ to R ₃ ... room, S ₁ to S ₃ ... human body detection sensor, SC ... Dirt detector

Claims (5)

[Claims] 1. An air conditioner equipped with a heat insulating material for insulating the entire house from the outside, and an air conditioner for cooling and heating each room of the house individually so that a human body detection sensor is provided in each room. Energy saving air-conditioning equipment for each room is provided with an air-conditioning strong / weak mode switching means that switches the cooling / heating device to a steady mode when the human body detection sensor is off and switches to a room entry mode that is a stronger operation state than the steady mode when the human body detection sensor is on. 2. A ventilation device for forcedly ventilating each room of the house so that the ventilation amount can be adjusted individually, and for each room, the ventilation device is set to a steady mode when the human body detection sensor is off and the steady mode is set to on. The energy-saving air conditioning equipment according to claim 1, further comprising a ventilation intensity mode switching means for switching to an entry mode in which the ventilation volume is larger than that of the ventilation mode. 3. A dirt detection sensor for detecting a predetermined concentration of carbon dioxide gas is provided in any one of the rooms, and ventilation of the ventilation device is performed in accordance with a detection output of the dirt detection sensor when the ventilation strength mode switching means is in the entry mode. The energy-saving air conditioning equipment according to claim 2, further comprising a dirt-corresponding control means for changing the amount. 4. The energy-saving air conditioning equipment according to claim 1, 2, or 3, wherein the cooling and heating device is a ceiling radiant cooling and heating device that performs radiant cooling and heating via a heat radiation panel provided on a ceiling surface. 5. The heat dissipation panel has a heat medium flow path formed on the back surface or inside thereof, and the air conditioning strength / weakness mode switching means controls the flow rate of the heat medium flowing through the heat dissipation panel flow path. The energy-saving air conditioning equipment according to claim 4.