JP2883929B2 - Radiation air conditioning chamber and air conditioning system including the chamber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a radiant air-conditioning chamber for an air-conditioning system using both an air convection air-conditioning system and a radiant air-conditioning system, which can also be used for environmental tests, and the same.
About the air conditioning system.

[0002]

2. Description of the Related Art In a conventional air conditioner in a general office building or the like, cold air is blown from an air conditioner during cooling, and warm air is blown into a room through heating air ducts during heating. For this reason, just under the outlet, etc., it becomes too warm in winter compared to the surroundings, and in summer, a cold draft where cold wind blows down directly occurs, lower than room temperature,
The human body tends to be exposed to the fast-moving airflow, which is not always a comfortable thermal environment.

As one method for eliminating such non-uniform temperature distribution in a room, there is a radiant air-conditioning system in which a ceiling surface or a wall surface is heated or cooled to perform cooling and heating by a radiation effect. According to this air conditioning system, the vertical temperature distribution in the room is reduced, and an ideal environment with a sense of warmth can be obtained.

[0004]

As described above, in the air conditioning by the air convection system in which cool and hot air is blown out from the outlet of the air supply duct, there is a sense of draft due to the air flow, fluctuations in the room temperature are caused up and down, and air flow noise is generated. And the like.

[0005] On the other hand, in the air conditioning by the radiation system, although the disadvantages of the convection system are solved, it is not possible to quickly respond to a sudden thermal change such as when it is desired to immediately set the room to a predetermined temperature, or to introduce fresh air. However, there are problems such as difficulties in performing the measurement and dew condensation on the radiation surface.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the problems of the prior art, and has an air conditioning chamber and an air conditioning system for an air conditioning system which have solved the drawbacks of air conditioning by an air convection system and air conditioning by a radiation system. The purpose is to provide a system .

[0007]

In order to achieve the above-mentioned object, a radiant air-conditioning chamber according to the present invention is provided.
Radiation plate on the front of the air conditioning chamber to which the air conditioning duct is connected
The heat source pipe through which cold and hot water is
Coiled on the back side of the firing plate, the gap between the heat source pipes
Outlet of air-conditioned air from the air-conditioning chamber
Open the nozzle port that serves as the return air suction port, and on the back of the radiation plate
Insulation is applied to cover the heat source pipe except for the nozzle opening.
In addition, around the nozzle opening on the radiation plate surface,
The configuration is such that a heat shielding material is provided .

[0008] In addition, the air-conditioning system according to the present invention, Bra
Brine cooled with brine cooled by the impeller
And store the brine in this brine tank with the air conditioner.
Supply to the air-conditioning chamber,
Air convection type air conditioning with cold air from the controller
When the indoor cooling load reaches a steady state, the radiant air conditioning
Mainly radiant air conditioning by the chamber, cool air from the air conditioner
Air conditioning system that performs air convection air conditioning
In the stem, a temperature detector and a humidity detector are installed in the room to be air-conditioned.
And input the detection output of these detectors to the control device,
In this controller, the room temperature is calculated from the detected temperature value and the detected humidity value.
Calculate the dew point temperature of the indoor air, and calculate the
Compare with the brine temperature supplied to the air conditioning panel,
The brine temperature supplied to the air conditioning chamber is the indoor dew point temperature.
Air temperature from the air conditioner so that it is always higher than
Controlled by a control device, and said radiation sky
The control chamber is equipped with a radiation plate on the front,
Into a coil on the back of the radiating plate
The air-conditioning chamber is joined to the radiation plate surface in the gap between the heat source pipes.
Nozzles that serve as air-conditioning air outlets or return air inlets
And open the heat source except for the nozzle port on the back of the radiation plate.
Insulation is applied to cover the pipe, and the radiating plate
In this configuration, a heat shielding material that also serves as a sealing material is provided around the opening of the casing .

[0009]

The radiant air-conditioning chamber having the above-described structure is provided behind the radiant plate.
Except for the nozzle opening on the surface, cover the heat source pipe
Air conditioning from an air conditioner
Even if there is a temperature difference between the wind and the heat source pipe,
If the load is large, use the nozzle port as a convection air conditioning outlet.
And the air conditioning load is in a steady state.
Is switched to air conditioning mainly using radiant air conditioning.
You.

In addition, the noise on the radiation plate surface of the air conditioning chamber
There is a thermal barrier material that is also used as a seal
The temperature of the nozzle opening from which the conditioned air is blown and the temperature of the radiation plate
Even if there is a difference in the degree of
The effect of both air convection air conditioning and radiation air conditioning
The fruits are effectively used.

Further, according to the air conditioning system having the above configuration,
If there is heat stored in the building frame,
At the start of cooling operation, air convection air conditioning suitable for rapid cooling
Depending on the method, cooling to the air conditioning set temperature is performed at a stretch.
Then, remove the large heat load in the early stage of cooling, and reduce the air conditioning load.
Once in a steady state, the radiant air conditioning system is
The ideal air conditioning is performed, and the latent heat load from the human body and
Latent heat load of the outside air accompanying intake of fresh air
Of the nozzle opening at the back of the radiation plate
Radiant air with thermal insulation covering the heat source pipe
Air conditioning air from the air conditioner and heat source
Even if there is a temperature difference between the air conditioner and the
Use the nozzle port as an air outlet for convection air conditioning
And if the air conditioning load is in a steady state
Can be switched to air conditioning mainly for radiant air conditioning, and always
Cold water (brine) at a temperature higher than the dew point of indoor air
Flow to the heat source pipe, so condensation on the radiation surface
Is prevented.

[0012]

EXAMPLES Hereinafter, radiation air-conditioning chamber and the according to the present invention
A specific example of an air conditioning system including a chamber will be described in detail with reference to the drawings. A radiating plate 3 having excellent heat radiation effect is attached to the front of the box-shaped radiating air-conditioning chamber 2 in the air- conditioning panel 1, and a heat source pipe 4 serving as a radiating heat source passage is provided on a back surface of the radiating plate 3. It is joined in a coil shape in the lateral direction by welding. Although a square pipe is used as the heat source pipe 4 in this embodiment, a round pipe may be used. One end of a heat source pipe 4 protruding upward from one side of the air conditioning chamber 2 is a cold / hot water inlet 4a.
The other end of the heat source pipe 4 projecting to the lower part on the other side of the chamber 2 is a cold / hot water outlet 4b.

In the gap between the upper and lower heat source pipes 4 arranged in a coil shape, a slit-shaped conditioned air nozzle port 5 serving as a conditioned air outlet from the chamber 2 or a suction port for return air in the room is provided with a radiation plate. 3, a plurality of openings are provided in the lateral direction. Note that the nozzle port 5 may be opened not in a slit shape but in a hole shape.

A heat insulating material 6 is provided on the rear surface of the radiation plate 3 so as to cover the heat source pipe 4 except for the opening of the nozzle port 5. Further, around the nozzle opening 5 on the front surface of the radiation plate 3, as shown in FIG. 3, a heat shielding material 7 also serving as a sealing material is provided in order to prevent air-conditioned air from being affected by heat conduction from the radiation plate 3. Is provided.

An air-conditioning duct 8 for blowing air-conditioned air from the air conditioner into the chamber 2 or circulating return air in the room to the air conditioner is connected to an upper portion of the air-conditioning chamber 2. Therefore, the air conditioning duct 8 forms a supply duct 12 and a return air duct 13.

Next, the configuration of an air conditioning system having the above-described radiation air conditioning chamber will be described with reference to FIG. In this figure, room 10 has air conditioning panels 1A, 1B
A supply duct 12 from an air conditioner 11 is connected to the air conditioning chamber 2 on the back surface of one air conditioning panel 1A,
A return air duct 13 that guides return air of the room 10 to the air conditioner 11 is connected to the air conditioning chamber 2 on the back surface of the other air conditioning panel 1B, thereby forming a circulation path of the conditioned air. The air conditioning panels 1A and 1B can be provided on the ceiling and floor in the room.

In the air conditioner 11, a cooling coil 14, a heating coil 15 through which hot water or steam is passed, a humidifier 16 to which steam is supplied, and a blower 17 are provided. Cooling water cooled by a brine chiller 19 to which a cooling tower 18 is connected is supplied from a brine tank 20 to a cooling coil 14 in the air conditioner 11 by a chilled water pump 21.
The chilled water that has exchanged heat with the air is returned from the cooling coil 14 to the brine tank 20 via the first flow control valve 22, and forms a first chilled water circuit 23. In addition, the cooling water for heat exchange from the cooling tower 18 is sent to the brush chiller 19 via the pump 24. The return brine from the brine tank 20 is circulated to the blincher 19 by the pump 25.

Meanwhile, the cold water becomes heat source water is adjusted to a predetermined temperature by the electric heater 26 from the brine tank 20 by the pump 27 is supplied from the cold and hot water inlet 4a of the air-conditioning chamber 2,2 in the heat source pipe 4, each air conditioner Chamber 2,
Is Kaemizu exiting 2 of hot and cold water outlet 4b second flow control valve 28
, And is returned to the brine tank 20 to form a second chilled water circuit 29. Here, the electric heater 26 is adjusted to a predetermined temperature by a control circuit 30 using a thyristor.

In the room 10, a temperature detector 31 and a humidity detector 32 are provided, and the detection signal
Sent to 3. A chilled water temperature detector 34 is provided at the chilled / hot water inlet 4 a of the air conditioning chamber , and a detection signal is sent to the arithmetic unit 33. The arithmetic unit 33 serving as a control device calculates the dew point temperature of the indoor air based on the detection values of the two detectors 31 and 32 in the room 10, and calculates the dew point temperature and the cold water supplied to the heat source coil 4 of the air conditioning chamber. The first and second flow control valves 22 and 28 are controlled so that the cold water temperature is always higher than the dew point temperature of the indoor air by performing a calculation for comparing the temperature with the temperature.

Next, the operation of the air conditioning system thus configured will be described. First, when a large heat load accumulated in the building frame is removed at the start of the cooling operation such as at the start of operation or when there is a sudden thermal change, the cool air cooled by the air conditioner 11 flows from the supply duct 12 to one wall. It is supplied to the air conditioning chamber 2 of the installed air conditioning panel 1A, the same Chang
The room is cooled at once by the cool air blown out from the nozzle opening 5 of the bath. Then, return air in the room is drawn in from the nozzle port 5 of the air conditioning chamber in the air conditioning panel 1B provided on the other wall, and is circulated to the air conditioner 11 through the return air duct 13.

Then, when the large heat load accumulated in the building frame is removed by the air convection type cooling and the load becomes a steady load, the chilled water is supplied from the second chilled water circuit 29 to each air conditioning chamber.
The cooling system is supplied to the heat source pipes 4 and 4 of the air conditioner and switched to a cooling system mainly using radiant cooling, and the latent heat removed from the human body and the latent heat removed by the introduction of fresh air are covered by air convection cooling.

At this time, the dew point temperature of the room air is calculated based on the detection values from the temperature detector 31 and the humidity detector 32 provided in the room, and the dew point temperature is supplied to the heat source pipe of the air conditioning chamber. The temperature of the cold air supplied from the air conditioner 1 is controlled so as to always satisfy “the indoor air dew point temperature <the cold water temperature”. Thereby, dew condensation on the surfaces of the air conditioning panels 1A and 1B is prevented.

At the start of the heating operation, the heating coil 15 of the air conditioner 11 is operated, and the air conditioning in one air conditioning panel 1A is performed.
The chamber is heated blown from the nozzle outlet 5 of the chamber warm air into the room, is circulated to the air conditioning machine 11 draws in return air from the nozzle opening 5 of the air-conditioning chamber <br/> the chamber in the other of the air-conditioning panel 1B.

When the room temperature reaches a predetermined temperature in a short time by air convection heating, the warm water heated by the electric heater 26 is emptied.
The room is heated by radiant heat supplied to the heat source pipe 4 of the conditioning chamber and radiated from the radiating plate 3.

[0025] As described above, in the air conditioning system of the present invention is performed ideal conditioning incorporating the advantages of radiant conditioned air convection conditioning. The air-conditioning panel according to the present invention can also be used as an environmental test device for homes and building materials and a test device for evaluating habitability.

[0026]

The radiant air-conditioning chamber according to the present invention has
Except the nozzle opening on the back of the plate, cover the heat source pipe.
Because it is made with insulation material,
Even if there is a temperature difference between the air conditioning wind and the heat source pipe,
When the air-conditioning load is large, the nozzle port is a convection air-conditioning outlet.
And the air conditioning load is in a steady state
Switch to air conditioning mainly for radiant air conditioning
be able to.

Further , the noise on the radiation plate surface of the air conditioning chamber
There is a thermal barrier material that is also used as a seal
The temperature of the nozzle opening from which the conditioned air is blown and the temperature of the radiation plate
Even if there is a difference in the degree of
The effect of both air convection air conditioning and radiation air conditioning
The fruit can be exhibited effectively.

[0028] According to the air conditioning system according to the present invention,
Air suitable for rapid cooling at the start of cooling operation with heavy load
The convection air-conditioning system cools down to the air-conditioning set temperature
When the air-conditioning load is in a steady state, the radiant air-conditioning method is mainly used.
Air conditioning, and the nozzle on the back of the radiation plate
Insulation is applied to cover the heat source pipe except for the mouth opening.
Radiated air-conditioning chamber
Even if there is a temperature difference between the wind and the heat source pipe,
If the load is large, use the nozzle port as a convection air conditioning outlet.
And the air conditioning load is in a steady state.
If Switching to air conditioning mainly for injection air conditioning
Temperature is always higher than the dew point of indoor air.
Flow of cold water (brine) through the heat source pipe.
Condensation can be prevented.

[0029] Therefore, it is a disadvantage of the air convection air conditioning system.
Draft sensation due to airflow, fluctuations above and below room temperature, airflow
Problems such as noise can be solved and radiation sky
Not be able to respond quickly to sudden thermal changes in the room
Improved defects such as spots, lack of fresh air, and condensation on the radiation surface
Air conditioning system can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an air conditioning chamber according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view showing the vicinity of a nozzle opening of the air conditioning chamber .

FIG. 4 is a configuration diagram of an air conditioning system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioning panel 2 Air-conditioning chamber 3 Radiation plate 4 Heat source pipe 4a Cold / hot water inlet 4b Cold / hot water outlet 5 Nozzle port 6 Insulation material 7 Heat blocking material 8 Air-conditioning duct 10 Room 11 Air-conditioner 12 Supply duct 13 Return air duct 14 Cooling coil 15 Addition Warm coil 16 Humidifier 17 Blower 18 Cooling tower 19 Brine chiller 20 Brine tank 21 Cold water pump 22 First flow control valve 23 First cold water circuit 26 Electric heater 28 Second flow control valve 29 Second cold water circuit 30 Control circuit 31 Temperature detector 32 Humidity detector 33 Arithmetic unit 34 Cold water temperature detector

Claims (2)

(57) [Claims] 1. An air conditioner to which an air conditioning duct from an air conditioner is connected.
A radiator plate is attached to the front of the chamber, allowing cold and hot water to pass through.
Heat source pipe to be joined to the back surface of the radiation plate in a coil shape
The air-conditioning chamber is placed on the radiation plate surface in the gap between the heat source pipes.
Nozzle port that serves as an air-conditioning air outlet or return air suction port
Through the heat source pipe except for the nozzle port on the back of the radiation plate.
Insulation is applied to cover the nozzle, and the nozzle
Radiant air-conditioning system with a heat-blocking material that also serves as a seal
Chamber. 2. A brine cooled by a blincher.
Is stored in the brine tank.
Supply air to the air conditioner and the radiant air conditioning chamber,
At the start, air convection air conditioning with cold air from the air conditioner
The cooling load in the room to be conditioned reaches a steady state.
In terms of radiant air conditioning by the radiant air conditioning chamber,
Air-conditioning by air convection with cold air from air conditioners
In an air-conditioning system that performs
Sensor and humidity detector, and control the detection output of these detectors.
Input to the controller, and the controller detects the temperature
The dew point temperature of indoor air was calculated from the detected
Indoor dew point temperature and brine temperature supplied to radiant air conditioning panel
And the brine supplied to the radiant air-conditioning chamber
Ensure that the air conditioner is operating so that the temperature is always higher than the indoor dew point.
The cool air temperature is controlled by the control device.
And the radiation air conditioning chamber has a radiation plate
Heat source pipe through which cold and hot water is passed
The coil is joined to the back of the
Air-conditioning air outlet from air-conditioning chamber or return air
Open the nozzle port that serves as the suction port for the
Insulate the heat source pipe except for the
In addition, the heat insulation around the nozzle port on the radiation plate surface also serves as a sealant.
An air-conditioning system that is constructed by providing materials.