JPH0343548Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a ceiling radiation type air conditioner, and more specifically, to a radiation unit that radiates hot or cold heat to a space to be air-conditioned through internal circulation of a heating medium or a refrigerant. The present invention relates to a ceiling radiation type air conditioner in which a large number of air conditioners are arranged side by side on the ceiling of the space to be air-conditioned, and a heat source device for supplying a heat medium or a refrigerant and each of the radiation units are connected through a circulation path.

[Conventional technology]

Conventionally, in the ceiling radiation type air conditioner as described above, as shown in FIG. The heat source device 5 includes a valve device V that collectively adjusts the amount of heat medium circulation or the amount of coolant circulation for the entire radiation unit 4.
Circulation paths 6A and 6B connecting the and the parallel radiation unit 4
It was nothing more than an intervention.

[Problem that the invention attempts to solve]

However, in air-conditioned spaces (for example, each floor of a building or a work space in a factory), it depends on whether or not it faces a window, the orientation of the facing wall or window, the content of work, the installed equipment, etc. The air conditioning load and the change form of the load differ in each part, and the temperature required in each part often differs depending on the preferences of the people located in each place, the type of equipment installed, etc. In this point, the conventional model
Although it is possible to deal with fluctuations in the overall air conditioning load (in other words, the average air conditioning load) in the air-conditioned space, there are differences in the air-conditioning load and load change form in each part of the air-conditioned space as mentioned above, and there are also differences in the required temperature. As a result, the amount of heat and cold radiated from the radiant unit installed on the ceiling may exceed the requirements in some areas, but be insufficient in other areas. The reality is that something similar has happened.

The purpose of the present invention is to solve the above-mentioned problems.

[Means for solving problems]

The characteristic configuration of the ceiling radiant air conditioner according to the present invention is that a large number of radiating units that radiate hot or cold heat to the air-conditioned space as a heat medium or refrigerant circulates inside are arranged in parallel on the ceiling of the air-conditioned space. In a configuration in which a heat source device for supplying a heat medium or a refrigerant and each of the radiation units are connected by a circulation path, a flow adjustment device for adjusting the flow rate of the heat medium or refrigerant in the radiation unit is installed in the radiation unit adjacent to the radiation unit. It is provided for each group consisting of a plurality of radiating units or for each radiating unit, and its functions and effects are as follows.

[Effect]

In other words, with the above configuration, the flow rate of the heating medium or refrigerant in the radiating unit can be controlled for each group, or
If the adjustment is made for each unit, the amount of heat or cold radiation for each group or individually corresponding section of the radiating unit in the air-conditioned space can be adjusted according to the air conditioning load in each section, the form of change in the load, and It can be adjusted individually according to the required temperature.

[Effect of idea]

As a result, the amount of heat and cold radiation in the air-conditioned space becomes excessive in some areas compared to the demand;
The conventional problem of insufficient capacity in other parts to meet demand has been resolved, and it has become possible to perform detailed radiant heating and cooling according to the load situation and demands of each part.

〔Example〕

Next, an example will be described.

Figures 1 and 2 show the overall equipment configuration of a ceiling radiant cooling system, with a coil-shaped cold water flow passage 1 inside.
A large number of panel-shaped radiating units 4 having one plate surface serving as a cold/heat radiating surface 3 for the air-conditioned space 2 are arranged in a line over the entire surface of the ceiling of the air-conditioned space 2.

Each of the radiation units 4 and a refrigerator 5 that supplies cold water are connected through cold water circulation paths 6A and 6B, and the cold water cooled by the refrigerator 5 is supplied to each radiation unit 4 by a circulation pump 7. .

In addition, the air-conditioned space 2 is provided with an outlet 8 that blows out dehumidified air along the cold heat radiation surface 3 of the group of radiating units 4 arranged side by side. In addition to preventing dew condensation on the radiation surface 3, the humidity in the entire air-conditioned space 2 is adjusted.

9 in the figure is a rotary dehumidifier that dehumidifies the return air from the air-conditioned space 2 and the fresh outside air taken in, using warm air as a moisture absorption source. Air is blown out and supplied to the air-conditioned space 2 from the air outlet 8.

As shown in FIG. 3, the specific connection configuration between each radiation unit 4 and the cold water circulation paths 6A, 6B is as follows.
A supply pipe 10 branched from the outgoing path 6A of the cold water circulation paths 6A, 6B is connected to the inlet 11 of the internal cold water flow path 1 in the radiating unit 4, and a discharge pipe 13 connected to the outlet 12 of the internal cold water flow path 1 is connected to the cold water flow path 1. The circulation paths 6A and 6B are connected to merge with the return path 6B.

Moreover, a bypass pipe 1 branched from the branch supply pipe 10
4 is connected to the return path 6B of the cold water circulation paths 6A and 6B, and the bypass pipe 14 is connected to the branch supply pipe 10.
An automatic three-way diversion valve 15 is installed at the branch part of the radiator unit 4 to adjust the diversion ratio between the amount of cold water supplied to the internal cold water flow path 1 of the radiating unit 4 and the amount of cold water short-circuited to the return path 6B via the bypass pipe 14. By adjusting the diversion ratio using the automatic three-way diversion valve 15, the flow rate of cold water in each radiant unit 4 is adjusted individually, and the amount of cold radiation from each radiant unit 4 is divided into the radiant units 4.
It is possible to adjust each time.

The automatic control configuration for the automatic three-way diverter valve 15 includes a sensor that detects the cold water temperature near the outlet 12 of the internal cold water flow passage 1 in each radiating unit 4 or the temperature of the cold heat radiating surface 3 in each radiating unit 4. 16, and a setting device 17 for specifying a desired cooling state is provided for each radiation unit 4, and the temperature detected by the sensor 16 is automatically maintained at a set temperature corresponding to the cooling state specified by the setting device 17. Diversion three-way valve 15
The controller 18 automatically operates the automatic three-way diverter valve 15.
are provided for each of the following.

That is, with the above-mentioned configuration, each location in the air-conditioned space 2 corresponds to each location below each of the radiating units 4, or each predetermined section located below each adjacent multiple radiating unit 4. Cooling status according to needs/requests (cooling radiation amount)
can be specified, and the specified cooling state is automatically displayed and maintained.

[Another example]

Next, other embodiments of the present invention will be listed.

(b) The refrigerant that flows through the radiation unit is not limited to cold water, but may also include various low-temperature liquids, cold air,
Alternatively, it may be a condensable refrigerant.

Furthermore, the present invention can also be applied to a ceiling radiant heating device that radiates heat by circulating various heat media through a radiant unit.

(b) The flow adjustment device that adjusts the flow rate of the heat medium or refrigerant in the radiant unit is a three-way valve, a two-way valve,
Various types can be applied.

(c) As shown in FIG. 4, the flow adjustment device 15 is
It is also possible to provide each group A, B, and C each consisting of a plurality of radiation units 4 adjacent to each other. Further, in addition to providing each group, additional units may be provided for each radiation unit.

(d) The radiating unit may be of any type, such as a panel-shaped unit as in the above embodiment, a unit with a large number of heating medium/refrigerant flow pipes arranged in parallel, or a unit bent into a coil shape, etc. It may have the same shape and structure.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

1 to 3 show embodiments of the present invention,
FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a partially enlarged plan view. FIG. 4 is an enlarged plan view showing another embodiment of the present invention, and FIG. 5 is a plan view showing a conventional example. 2...Air conditioned space, 4...Radiation unit, 5
...Heat source device, 6A, 6B...Circulation path, 15...
Distribution adjustment device.

Claims (1)

[Scope of utility model registration request] Air-conditioned space 2 due to internal circulation of heat medium or refrigerant
A radiation unit 4 that radiates hot or cold heat to
A ceiling radiation type air conditioner in which a large number of air conditioners are arranged in parallel on the ceiling of the air-conditioned space 2, and a heat source device 5 for supplying a heat medium or a refrigerant and the radiation unit 4 are connected through circulation paths 6A and 6B, respectively. A flow rate adjustment device 15 for adjusting the flow rate of the heat medium or refrigerant in the radiant units 4 is installed for each group consisting of a plurality of radiant units 4 adjacent to each other, or for each radiant unit 4. Ceiling radiant air conditioner installed.