JPH10220814A - Operation control method of driver heat storage air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the running cost by performing operation control of an air conditioner taking temperature of a driver as a heat storage part as target temperature in a heat storage operation and hence making the amount of storage heat optimum. SOLUTION: A driver heat storage air-conditioning system is adapted such that there is constructed a hollow part 2 for flowing air conditioning air to a driver 1 from an air conditioner 8, and heat is stored in the driver excepting air-conditioning time and within the air-conditioning time heat stored in the driver is supplied for air-conditioning. In the system, a temperature sensor for controlling operation is installed in an air conditioning system and on the driver serving to store heat, and upon air-conditioning is controlled with a temperature sensor 17 installed in the air-conditioned space to adjust the temperature of the air-conditioned space while upon heat storage the air conditioner is controlled with a temperature sensor 19 installed on the driver to adjust the heat storage temperature of the driver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control method for a building thermal storage air conditioning system.

[0002]

2. Description of the Related Art In a floor-blowing air-conditioning system in which conditioned air from an air-conditioner is supplied from a floor-side blow-out portion to a room through a space below the floor formed between a floor and a floor frame, the air-conditioner is started. Immediately after, in order to improve the indoor environment, the applicant has previously proposed a floor blowing air-conditioning system using heat storage in the building. (For example, Japanese Patent Application No. 8-161253
Please refer to the specification and drawings attached to the request for the issue. )

[0003] As shown in FIG.
In the floor blowing air-conditioning system for supplying the conditioned air from the air conditioner a from the floor side blowing part e to the room f through the underfloor space part d formed between the floor b and the floor skeleton c, the floor skeleton c is In this configuration, a hollow portion g is provided, and a communication port h between the hollow portion g and the underfloor space portion d is provided at an appropriate position. still,
An air volume adjusting device (not shown) such as a damper is configured in the blowout portion e, and a fan is provided in a communication port h in an appropriate position. The perimeter is provided with a fan heater unit i and the like.

[0004] In such a configuration, the air conditioner a is operated only for a necessary time outside the time when air conditioning is required, especially at night when the unit price of the power rate is low, and the conditioned air is mainly used for the hollow part g of the floor frame c. By supplying the air to the air conditioner, the heat (including cold heat) generated by the operation of the air conditioner can be stored in the floor frame. Can be supplied indoors, and the air conditioning capacity of the air conditioner does not need to be increased in accordance with the heat load immediately after the start, and the cost can be reduced.

[0005]

In this system, at the time of air conditioning, the operation of facilities such as an air conditioner, a blowing section, a fan heater unit and the like is controlled by a temperature sensor installed in a room which is an air conditioning space, and Control is performed to set the temperature to the target temperature, but such control is not performed during heat storage, and the air conditioner operates for a set time. Therefore, it is not possible to optimize the amount of heat stored in the skeleton, and the operation is performed for a necessary time or more, which increases running costs. An object of the present invention is to solve such a problem.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a hollow portion through which conditioned air from an air conditioner flows is formed in a skeleton, and heat is stored in the skeleton outside the air-conditioning time. In the skeleton thermal storage air-conditioning system configured to provide the heat stored in the skeleton for air conditioning, a temperature sensor for controlling the operation is installed in the air-conditioning space and the skeleton that stores heat, and the temperature sensor installed in the air-conditioned space during air conditioning We propose an operation control method that controls the air conditioner to control the temperature of the air-conditioned space, and controls the air conditioner by the temperature sensor installed in the skeleton during heat storage to adjust the heat storage temperature of the skeleton.

In the present invention, as an example of an air-conditioning system to which the operation control method of the present invention is applied, the air-conditioning space is configured to perform air-conditioning by blowing air from a floor outlet through a space under the floor and sucking the air into the ceiling. Then, an air conditioning system is proposed in which a hollow portion is formed in the floor frame of the underfloor space and a communication port between the hollow portion and the underfloor space is formed.

According to the present invention, in the heat storage operation, it is possible to control the operation of the air conditioner with the temperature of the skeleton as the heat storage unit as the target temperature, and to reduce the running cost by optimizing the heat storage amount. be able to.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are schematic explanatory views showing an embodiment in which the operation control method of the present invention is applied to a floor air-conditioning system. Reference numeral 1 denotes a floor frame, and the floor frame 1 has a configuration having a hollow portion 2, for example, a void slab as shown in FIG. Reference numeral 3 denotes a floor formed above the floor frame 1 with the underfloor space 4 therebetween, for example, a free access floor, and the room above the floor. This underfloor space 4 can be used as a wiring space for OA equipment and communication.

The floor frame 1 is provided with a communication port 5 between the hollow portion 2 and the underfloor space 4. In the configuration shown in FIG.
Are arranged so that the hollow portion 2 faces in the left-right direction in the figure, and a communication port 5 is provided on the left and right sides. A fan 6 that allows air in the underfloor space 4 to flow into the hollow portion 5 is formed in the communication port 5 on the right side in the drawing.

An air conditioner 8 is installed in an outdoor storage space 7 corresponding to the right side of the floor frame 1 in the figure, and a blow-out duct 9 of the air conditioner 8 is located in the underfloor space 4. On the other hand, the suction side duct 10 of the air conditioner 8 is located in the space 13 in the ceiling between the ceiling plate 11 and the ceiling slab 12.

The floor 3 is provided with an appropriate number of outlets 14 at appropriate places, and these outlets 14 are provided with air volume adjusting devices (not shown) such as dampers. On the other hand, a ventilation port 15 is provided in the ceiling plate 11.

A temperature sensor 17 for detecting an indoor temperature is provided at an appropriate place in the room 16 as an air-conditioned space. A temperature signal detected by the temperature sensor 17 is transmitted to a control device 18 of equipment including the air conditioner 8. It is input and provided for control.
On the other hand, a temperature sensor 19 for detecting the temperature of the floor skeleton 1 is provided at an appropriate position of the floor skeleton 1 for storing heat, and a temperature signal detected by the temperature sensor 17 is also input to the control device 18 for control. Provided. The temperature sensor 19 is the floor frame 1
It is installed in such a way as to be able to detect the temperature corresponding to the amount of heat stored in the floor satisfactorily, for example, by being embedded in the floor.

In the above configuration, for example, outside the air-conditioning period during the cooling period, especially during the night when the unit price of the electricity rate becomes low, the air-conditioning unit 7 is set in a state where the air volume adjusting device of the outlet 10 is throttled as shown in FIG. Is operated for cooling.

In this operating state, the cold air from the blow-out side duct 9 flows through the underfloor space 4 as shown by the arrow in the figure, and is supplied from the communication port 5 into the hollow portion 2 of the floor frame 1 to be cooled. Cool 1 That is, so-called cold heat is stored in the floor frame 1. On the other hand, a part of the cold air from the outlet duct 9 flows out of the outlet 14 into the room and is supplied to the room for cooling, though slightly. The temperature of the air from the air conditioner in this operation is lower than the temperature in the air conditioning operation. For example, when the set temperature in the air conditioning is 18 ° C., it is set to 12 ° C. or the like.

In the heat storage operation described above, the control device 18 compares the temperature signal input from the temperature sensor 17 with the set temperature set in the setting means, and operates the air conditioner 8 with the set temperature as a target temperature. Control. That is, the control device 18
Operates the air conditioner 8 until the temperature of the floor frame 1 detected by the temperature sensor 17 reaches the set temperature. By performing such operation control, it is possible to prevent the amount of heat stored in the floor frame 1 from being excessive or insufficient, and to prevent an increase in running cost due to operation for an unnecessarily long time.

As described above, the air conditioner 8 is operated only for a necessary time.
And the air conditioner 8 is again cooled when the time required for air conditioning starts. In this air conditioning operation, the air volume adjusting device of the outlet 14 is opened to increase the air volume.

In this operating state, as shown in FIG. 2, cold air from the outlet duct 9 flows through the underfloor space 4 as indicated by an arrow in the figure, and a part of the air flows from the communication port 5 to the floor frame 1.
Flows through the inside of the hollow portion 2 to reach the underfloor space portion 4 again, and is supplied from the outlet 14 into the room. The air that has flowed into the hollow portion 2 of the floor frame 1 is cooled by being exchanged with the floor frame 1 that has been cooled to a temperature lower than the temperature at the time of air conditioning in the heat storage operation, and is supplied indoors. Immediately after starting the cooling operation, predetermined air-conditioning air can be supplied to the room, and it is not necessary to start the air-conditioning equipment before the time required for air-conditioning starts. ,
There is no need to increase the load in response to the heat load immediately after starting.

In the air-conditioning operation described above, the control device 18 controls the operation of the air conditioner 8 and the like so that the indoor temperature becomes the set temperature by the temperature sensor 17 provided in the room as in the conventional case.

Although the operation in the cooling period has been described above, the operation in the heating period can be optimized by the same operation in the operation in the heating period.

The air conditioning system described above is a floor air-conditioning system, but the present invention can be applied to other appropriate air-conditioning systems such as a ceiling air-conditioning system. In addition to the frame, it can be a ceiling frame or the like.

[0022]

As described above, the present invention has the following effects. a. In the heat storage operation, it is possible to control the operation of the air conditioner using the temperature of the skeleton as the heat storage unit as the target temperature, and to reduce the running cost by optimizing the heat storage amount. b. Optimization of the capacity of air conditioning equipment is achieved.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a configuration of an air conditioning system in which an operation control method of the present invention is applied to a floor blowing air conditioning system and an operation during a heat storage operation.

FIG. 2 is a schematic explanatory diagram showing the configuration of an air conditioning system in which the operation control method of the present invention is applied to a floor air-conditioning system and the operation at the time of air conditioning operation.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a schematic explanatory view showing a configuration example of a building thermal storage floor blowing air conditioning system to which the present invention is not applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 floor frame 2 hollow part 3 floor 4 underfloor space 5 communication port 6 fan 7 storage space 8 air conditioner 9 outlet duct 10 suction duct 11 ceiling plate 12 ceiling slab 13 ceiling space part 14 outlet 15 vent 16 indoor 17 Temperature sensor 18 Controller 19 Temperature sensor

Claims (2)

[Claims] 1. A skeleton having a hollow portion through which conditioned air from an air conditioner flows in a skeleton, storing heat in the skeleton outside air conditioning time, and supplying heat stored in the skeleton to air conditioning during an air conditioning time. In a thermal storage air conditioning system, a temperature sensor for controlling operation is installed in the air conditioning space and a skeleton that stores heat, and during air conditioning, the temperature sensor installed in the air conditioning space controls the air conditioner to adjust the temperature of the air conditioning space,
An operation control method for a building thermal storage air-conditioning system, characterized in that the air conditioner is controlled by a temperature sensor installed in the building during heat storage to adjust the heat storage temperature of the building. 2. The air-conditioned space is configured to perform air-conditioning by a method in which conditioned air is blown out from a floor outlet through a space under the floor and sucked into the ceiling. 2. The operation control method for a building thermal storage air conditioning system according to claim 1, wherein a communication port with a space under the floor is formed.