JP3327376B2 - Operation control method of building thermal storage air conditioning system - Google Patents

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, air-conditioning air from an air conditioner is supplied from a floor-side blow-off portion into a room through a space below the floor formed between a floor and a floor frame. 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 there is an advantage that it is not necessary to increase the air-conditioning capacity of the air conditioner in accordance with the heat load immediately after the start, so that 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 is formed in a skeleton for flowing conditioned air from an air conditioner, and heat is stored in the skeleton outside air conditioning.
In skeleton heat storage air conditioning system configured to provide the heat stored in the precursor to the air conditioning of the air-conditioned space at the time of air conditioning, air-conditioning space, or conditioned air through the underfloor space floor outlet
Air-conditioning system that blows air out and sucks it into the ceiling
While forming a hollow part in the floor frame of the underfloor space,
Configure multiple communication ports between the hollow part and the underfloor space, and
Either way, the air in the underfloor space flows into the hollow space.
And a temperature sensor for controlling the operation of the air conditioner is installed on the air-conditioning space and the floor frame that stores heat.At the time of air-conditioning, the temperature sensor installed in the air-conditioning space controls the air conditioner to control the air-conditioning space. While controlling the temperature, when storing heat
An operation control method is proposed in which an air conditioner is controlled by a temperature sensor installed on a floor frame to adjust the heat storage temperature of the floor frame.

According to the present invention described above, the floor as the heat storage section
In the hollow space formed in the floor frame of the lower space, multiple communication ports
The air in the underfloor space is
By flowing the air into and out of the
Heat exchange between the body and the conditioned air takes place.

[0010] According to the present invention described above, in the thermal storage operation, the temperature of the floor skeleton as the heat storage unit can perform operation control of the air conditioner to the target temperature, the running costs by optimizing heat storage amount Reduction can be measured.

[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, when the air conditioner is not in the air-conditioning period in the cooling period, especially in the nighttime when the unit price of the electricity rate is low, the air conditioner of the air outlet 7 is set in a state where the air volume adjusting device of the outlet 10 is narrowed as shown in FIG. Is operated for cooling.

In this operating state, cold air from the outlet duct 9 flows through the underfloor space 4 as indicated by the arrow in the figure, and is supplied from the communication port 5 into the hollow part 2 of the floor frame 1 by the fan 6. To cool the floor frame 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.
If it is ° C, set it 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 by the fan 6. 1 and flows through the hollow portion 2 again to form another communication port 5 again.
Then , the water flows out of the room to reach the underfloor space portion 4 and is supplied into the room from the outlet 14. 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. In addition, it is not necessary to increase the load corresponding 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.

[0021]

As described above, according to the present invention , the air conditioner
The air-conditioning air flows through the hollow part,
Heat was stored in the skeleton, and during air conditioning, it was stored in the skeleton
Building heat storage air configured to provide heat for air conditioning in the air-conditioned space
The key system has the following effects. a. Hollow section constructed in the floor frame of the underfloor space as a heat storage section
Is provided by a fan configured in one of multiple communication ports
By allowing the air in the underfloor space to flow in and out,
Heat exchange between the floor frame and conditioned air during air conditioning.
You. b . In the heat storage operation, it is possible to control the operation of the air conditioner with the temperature of the floor frame as the heat storage unit as the target temperature, and to reduce the running cost by optimizing the amount of heat storage. c . Optimization of the capacity of the 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 Blow-off duct 10 Suction-side duct 11 Ceiling board 12 Ceiling slab 13 Ceiling space part 14 Blow-out 15 Vent 16 Indoor 17 Temperature sensor 18 Controller 19 Temperature sensor

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-1-184348 (JP, A) JP-A-1-226696 (JP, A) JP-A-2-101337 (JP, A) JP-A-5-101 322212 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 5/00 F24F 1/00 346 F24F 7/10

Claims (1)

(57) [Claims] 1. A hollow portion for flowing air-conditioned air from an air conditioner in a frame, heat is stored in the frame outside air conditioning, and heat stored in the frame is used for air conditioning in an air- conditioned space during air conditioning. in the configuration the precursor thermal storage air conditioning systems, air
The conditioned space blows conditioned air from the floor outlet through the underfloor space.
Air-conditioning system that takes out air and draws it into the ceiling
A hollow part in the floor frame of the underfloor space,
Multiple communication ports between the floor and the underfloor space,
This is a fan that allows air in the underfloor space to flow into the hollow space
And a temperature sensor for controlling the operation of the air conditioner is installed on the air-conditioning space and the floor frame that stores heat, and during air conditioning, the temperature sensor installed in the air-conditioning space controls the air conditioner to control the temperature of the air-conditioning space. with adjusting, precursor heat storage air conditioning system operation control method characterized by during heat storage to adjust the heat storage temperature of controlling the air conditioner by a temperature sensor disposed on a floor skeleton <br/> body floor precursor