JPH05322229A - Ceiling radiation type air conditioner - Google Patents

Abstract

PURPOSE:To easily control the temperature in a space in response to changes in heating load. CONSTITUTION:In response to a panel shaped radiation unit 4 for radiating cold heat to an air conditioning object space following an internal flow of a refrigerant or a human body sensor 19 disposed for each group of the panel- shaped radiation units 4, a human body judgement unit 20 determines a flow distribution ratio for each radiation unit with respect to the entire flow amount of the refrigerant. Further, the human body judgement unit 20 regulates the amount of distribution of the refrigerant in the radiation unit in response to set temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling radiating air conditioner, and more particularly to a plurality of radiating units for radiating warm or cold heat to an air-conditioned space accompanying internal circulation of a heat medium or refrigerant. The present invention relates to a ceiling radiating type air conditioner in which is installed on the ceiling.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a conventional ceiling radiation type air conditioner disclosed in Japanese Utility Model Publication No. 3-43548.
Is a side view showing a conventional ceiling radiation type air conditioner, and FIG. 5 is an enlarged plan view showing a conventional ceiling radiation type air conditioner.

In the figure, 1 is a coiled cold water flow passage through which cold water flows, 2 is an air-conditioned space to be air-conditioned,
Reference numeral 3 denotes a cold heat radiation surface facing the air conditioning target space 2, and 4 denotes a panel-shaped radiation unit in which the cold water flow passage 1 is incorporated and which is arranged over the entire ceiling of the air conditioning target space 2 so as to be aligned. is there. 5 is a cold water circulation path 6 for each panel-shaped radiation unit 4.
Refrigerator connected via a and 6b, 7 is refrigerator 5
It is a circulation pump that supplies the cold water cooled in step 1 to the panel-shaped radiation unit 4. Reference numeral 8 denotes an outlet that blows out dehumidified air along the cold heat radiating surface 3 of the panel-like radiating unit 4 in the air-conditioned space 2, and prevents dew condensation on the cold heat radiating surface 3 by supplying the dehumidified air. , The humidity of the entire air-conditioned space 2 is adjusted. Reference numeral 9 denotes a rotary type dehumidifier that dehumidifies the return air from the air-conditioned space 2 and the intake fresh air using a separate hot air as a moisture absorption source. The air dehumidified by the dehumidifier 9 is blown out through the air outlet 8 It is supplied to the air conditioning target space 2.

Reference numeral 10 denotes a supply pipe for branching and supplying cold water, 1
1 is the inlet of the internal cold water flow passage of each panel-shaped radiation unit 4,
Reference numeral 12 denotes an outlet of the internal cold water flow passage of each panel-like radiation unit 4, and 13 denotes an outlet 12 of each internal cold water flow passage and the cold water circulation passage 6b.
A reference numeral 14 is a discharge pipe for connecting with a bypass pipe, 14 is a bypass pipe, and 15 is an automatic flow dividing three-way valve for adjusting the flow dividing ratio of cold water. Then, as shown in FIG. 4 and FIG. 5, the concrete connection between each panel-shaped radiation unit 4 and the cold water circulation paths 6a and 6b is a panel shape of the supply pipe 10 branched from the outward path (6a) of the cold water circulation path. The discharge pipe 13 connected to the internal cold water flow passage inlet 11 of the radiating unit 4 and connected to the internal cold water flow passage outlet 12 is connected to the cold water circulation passage 6.
It is connected to the return path (6b) of a and 6b. Further, the bypass pipe 14 branched from the supply pipe 10 is connected to the return passage (6b) of the cold water circulation passage, and the branch portion of the bypass pipe 14 in the supply pipe 10 is connected to the cold water flow passage 1 of the panel-shaped radiation unit 4. Amount of cold water to supply and bypass pipe 14
An automatic flow dividing three-way valve 15 for adjusting the flow dividing ratio with the amount of cold water short-circuited to the return path (6b) via the valve is provided. By adjusting the flow dividing ratio by the automatic flow dividing three-way valve 15, the flow rate of cold water in each panel-shaped radiation unit 4 can be individually adjusted, and the cold heat radiation amount from each panel-shaped radiation unit 4 can be adjusted for each panel-shaped radiation unit 4. Is configured.

Reference numeral 16 denotes a sensor for detecting the temperature of cold water near the outlet 12 of the internal cold water flow passage of each panel-shaped radiation unit 4, or the temperature of the cold heat radiation surface 3 of each panel-shaped radiation unit 4, and 17 denotes each panel-shaped radiation unit 4 A setting device that is provided for each of the devices and specifies a desired cooling temperature, and a controller 18 that automatically operates the automatic flow dividing three-way valve 15. Automatic shunt three-way valve 15
In order to maintain the temperature detected by the sensor 16 at the set temperature corresponding to the cooling condition designated by the setter 17, the automatic control for the automatic control is appropriately performed by the controller 18 provided for each of the automatic diversion three-way valves 15. Operate automatically.

That is, in the ceiling radiating type air conditioner having the above-mentioned configuration, in the air-conditioned space 2, the panel-shaped radiating units 4 are individually located below the respective panel-shaped radiating units 4 or adjacent to each other. It is possible to specify a cooling condition according to the need or request at each location for each predetermined section located below, and the specified cooling condition can be automatically expressed and maintained.

[0007]

In the conventional ceiling radiant air conditioner as described above, in order to radiatively air-condition the entire air-conditioned space 2 with the same capacity even in an air-conditioned space where there is no person,
The power consumption was sometimes excessively consumed. In particular, it has not been possible to quickly cope with a case where a person moves in the wide air-conditioned space 2. In addition, since there are many setting devices 17, there is a problem that it is not possible to know at a glance which radiating unit the setting device 17 is.

Further, in the conventional ceiling radiant air conditioner as described above, whether or not it faces a window or wall in the air-conditioned space 2, the facing wall or window orientation, work content, installed equipment, etc. Due to this, the air conditioning load was uneven in each part. Therefore,
Even if the setting unit 17 requests and sets the same temperature for each radiating unit and each group radiating unit, it takes a considerable amount of time before the capacity becomes insufficient or the set temperature is reached in the air-conditioning target portion with an excessive load. It took a while. Moreover, since there are many setting devices 17, there is also a problem that the setting device 17 of which radiation unit is unknown as in the above case.

Therefore, the invention of claim 1 is to provide a ceiling radiation type air conditioner capable of performing air conditioning according to the state of the personnel load in the air-conditioned space and easily responding to changes in the personnel load. It is what Moreover, the invention of claim 2 is to provide a ceiling radiation type air conditioner capable of performing air conditioning according to a load state in an air-conditioned space and easily responding to a load change. ..

[0010]

A plurality of ceiling radiating air conditioners according to the invention of claim 1 are arranged in parallel on the ceiling of the air-conditioned space, and the air-conditioned space is subjected to internal circulation of a heat medium or a refrigerant. A radiation unit that radiates hot or cold heat by
A heat source supply unit that is connected to each of the radiation units by a circulation path and supplies a heat medium or a refrigerant, and a human body sensor provided for each of the radiation units or the radiation unit groups,
Depending on the output of the human body sensor, a human body determining device that determines the distribution distribution ratio of each radiation unit to the total circulation amount of the heat medium or the refrigerant, and the distribution amount of the heat medium or the refrigerant in the radiation unit according to the set temperature. And a flow rate adjusting means for adjusting the flow rate.

In the ceiling radiating air conditioner according to the second aspect of the present invention, a plurality of air conditioners are installed side by side on the ceiling of the air-conditioned space, and heat or cold heat is radiated to the air-conditioned space with the internal circulation of the heat medium or refrigerant. A radiation unit, a heat source supply means connected to each of the radiation units by a circulation path to supply a heat medium or a refrigerant, a capability code arranged for each of the radiation units or radiation unit groups, and a capability code of the capability code. Depending on the setting, a capacity distributor that determines the distribution distribution ratio of each radiation unit to the total distribution of the heat medium or refrigerant, and a flow rate that adjusts the distribution amount of the heat medium or refrigerant in the radiation unit according to the set temperature. And adjusting means.

[0012]

In the ceiling radiant air conditioner according to the invention of claim 1, the radiant units that radiate hot or cold heat to the air-conditioned space with the internal circulation of the heat medium or the refrigerant, or each radiant unit group, are arranged. According to the output of the human body sensor, the distribution distribution ratio of each of the radiation units to the total flow rate of the heat medium or the refrigerant in the human body determiner is determined, and the distribution amount of the heat medium or the refrigerant in the radiation unit is set to the set temperature. Therefore, air conditioning can be performed according to the state of the personnel load in the air-conditioned space, and changes in personnel load can be easily dealt with.

In the ceiling radiant air conditioner of the invention as claimed in claim 2, the radiating unit for radiating hot or cold heat to the air-conditioned space with the internal circulation of the heat medium or the refrigerant, or each radiating unit group is arranged. According to the setting of the specified capacity code, the distribution ratio of each radiant unit to the total flow rate of the heat medium or the refrigerant is determined by the capacity distributor, and the distribution amount of the heat medium or the refrigerant in the radiant unit is set to the set temperature. Therefore, air conditioning can be performed according to the load condition in the air-conditioned space, and load changes can be easily dealt with.

[0014]

Embodiments of the present invention will be described below. <First Embodiment> FIG. 1 is a side view showing a ceiling radiation type air conditioner which is a first embodiment of the present invention, and FIG. 2 is an enlarged view showing a ceiling radiation type air conditioner which is a first embodiment of the present invention. It is a top view. In the figure, the same reference numerals and symbols as those of the above-mentioned conventional example indicate the same or corresponding components as those of the above-mentioned conventional example.

In the figure, reference numeral 19 denotes a human body sensor provided for each panel-shaped radiation unit 4 or for each group of panel-shaped radiation units 4. The human body sensor 19 detects the number of persons in the air-conditioned space 2. To do. Human body sensor 1
There is a known device 9 using infrared rays or the like. Reference numeral 20 designates a distribution ratio of the cold water circulation amount from the outward path (6a) of the cold water circulation path for each panel-shaped radiation unit 4 or for each group of each panel-shaped radiation unit 4 according to the number of persons detected by the human body sensor 19. , A human body judging device for controlling the automatic flow dividing three-way valve 15. In addition, in this embodiment, the sensor 16 for detecting the hot water temperature of the return path (6b) of the cold water circulation path joined from the internal cold water flow path outlet 12 of each panel-shaped radiation unit 4,
And a setting device 17 for designating a desired cooling state is provided. Then, the controller 18 that automatically operates the automatic diversion three-way valve 15 so that the temperature detected by the sensor 16 is maintained at the set temperature corresponding to the cooling state designated by the setter 17.
Is provided.

In other words, in the ceiling radiating type air conditioner having the above-mentioned configuration, only the place where the person in the air-conditioned space 2 is located can realize the cooling condition according to the request, and the designated cooling condition can be automatically revealed and maintained.

As described above, in the ceiling radiating air conditioner of this embodiment, a plurality of panels are arranged side by side on the ceiling of the air-conditioned space 2 and radiate cold heat to the air-conditioned space 2 as the refrigerant internally flows. -Shaped radiating unit 4, a heat source supply means including a refrigerator 5 and a circulation pump 7 which are connected to each of the panel-shaped radiating units 4 by cold water circulation paths 6a and 6b, and which supply a refrigerant, and the panel-shaped radiating unit 4 or A human body sensor 19 arranged for each group of panel-shaped radiating units 4, and a human body deciding device that determines a distribution distribution ratio of each panel-shaped radiating unit 4 with respect to a total amount of flowing refrigerant according to an output of the human body sensor 19. 20 and the panel-shaped radiation unit 4
Automatic flow dividing three-way valve 15, sensor 16, setting device 17, controller 18 for adjusting the distribution amount of the refrigerant in accordance with the set temperature
And a flow rate adjusting means consisting of.

That is, in the ceiling radiating air conditioner of this embodiment, the panel radiating unit 4 or the group of panel radiating units 4 for radiating cold heat to the air-conditioned space 2 along with the internal circulation of the refrigerant is arranged. In accordance with the output of the human body sensor 19, the human body determination unit 20 determines the distribution distribution ratio of each of the panel-shaped radiating units 4 with respect to the total flow rate of the refrigerant, and determines the distribution amount of the refrigerant in the panel-shaped radiating unit 4. It is appropriately adjusted according to the set temperature.

Therefore, since unnecessary air conditioning in the air-conditioned space where there is no person is omitted and air conditioning can be performed according to the state of the personnel load in the air-conditioned space 2, only the necessary air-conditioned zone in the air-conditioned space 2 is provided. Air conditioning can be performed, comfortable air conditioning can be performed, and power consumption can be reduced. Moreover, it is possible to easily cope with changes in personnel load, and it is possible to constantly perform air conditioning in accordance with the state of personnel load, resulting in energy saving. Moreover, since the temperature of the air-conditioned space 2 can be properly adjusted with one setting device 17, the temperature setting becomes simple.

<Second Embodiment> FIG. 1 is a side view showing a ceiling radiation type air conditioner according to a second embodiment of the present invention, which is common to the first embodiment. FIG. 3 is an enlarged plan view showing a ceiling radiation type air conditioner which is a second embodiment of the present invention. In the figure, the same reference numerals and symbols as those of the above-mentioned conventional example and the first embodiment indicate the same or corresponding components as those of the above-mentioned conventional example and the first embodiment.

In the figure, reference numeral 21 is a capability code provided for each panel-shaped radiation unit 4, and the capability code 21 sets the capability of each panel-shaped radiation unit 4. 22 designates a distribution ratio of the cold water circulation amount from the outward path (6a) of the cold water circulation path for each panel-like radiating unit 4 or for each group of the panel-like radiating units 4 according to the setting in the capacity code 21. It is a capacity distributor that controls the automatic branch three-way valve 15. Also, in this embodiment, as in the first embodiment, the return path (6) of the cold water circulation path merged from the internal cold water flow path outlets 12 of the panel-shaped radiation units 4 is used.
A sensor 16 for detecting the hot water temperature in b) and a setting device 17 for designating a desired cooling state are provided. A controller 18 that automatically operates the automatic diversion three-way valve 15 is provided so as to maintain the temperature detected by the sensor 16 at the set temperature corresponding to the cooling state designated by the setter 17.

That is, in the ceiling radiating air conditioner having the above-mentioned configuration, even if there is a section with an excessive air conditioning load, the air conditioning target space 2
All can be designated as the cooling state according to the request, and the designated cooling state can be automatically expressed and maintained.

As described above, in the ceiling radiating air conditioner of this embodiment, a plurality of panels are arranged side by side on the ceiling of the air-conditioned space 2 and radiate cold heat to the air-conditioned space 2 as the refrigerant internally flows. -Shaped radiation unit 4, heat source supply means including a refrigerator 5 and a circulation pump 7 that are connected to each of the panel-shaped radiation units 4 by cold water circulation paths 6a and 6b, and that supply a refrigerant, and each panel-shaped radiation unit 4 And a capacity distributor 22 for determining a distribution distribution ratio of each panel-shaped radiation unit 4 with respect to the total flow rate of the refrigerant according to the setting of the capacity code 21, and the panel-shaped radiation. An automatic flow dividing three-way valve 15, a sensor 16 and a setter 1 for adjusting the distribution amount of the refrigerant in the unit 4 according to the set temperature.
7 and a flow rate adjusting means including a controller 18.

That is, in the ceiling radiation type air conditioner of this embodiment, the capacity code 21 is set for each panel-shaped radiation unit 4 that radiates cold heat to the air-conditioned space 2 with the internal circulation of the refrigerant. Accordingly, the capacity distributor 22 determines the distribution ratio of each of the panel-shaped radiating units 4 with respect to the total flow rate of the refrigerant, and the distribution amount of the refrigerant in the panel-shaped radiating unit 4 is adjusted appropriately according to the set temperature. To do.

Therefore, even if the air-conditioning load is biased in each part depending on whether or not it faces a window or wall in the air-conditioned space 2, the orientation of the facing wall or window, work content, installed equipment, etc.
Air conditioning according to the state of the air conditioning load in the air conditioning target space 2 can be performed. For this reason, in an air-conditioning target portion with an excessive load, it does not become insufficient in capacity or it takes a considerable time to reach the set temperature, so that comfortable air conditioning can be performed and power consumption can be reduced. . Moreover, it is possible to easily cope with a load change in the air-conditioned space, and it is possible to constantly perform air conditioning in accordance with the load state, which eventually contributes to energy saving. Further, since the temperature of the air-conditioned space 2 can be properly adjusted by one setter 17, the temperature setting becomes easy. In this embodiment, the capacity code 21 is provided for each panel-shaped radiation unit 4, but it may be provided for each panel-shaped radiation unit 4 group as in the first embodiment.

By the way, in the above both embodiments, the cooling operation by the refrigerant has been described as an example, but it can be naturally applied to the heating operation by the heat medium, and the same effect as the above can be obtained. In addition,
In this case, the heat source supply means supplies the heat medium to the radiating unit via the circulation path, and radiates warm heat to the air-conditioned space 2 as the heat medium internally flows in the radiating unit.

[0027]

As described above, in the ceiling radiating type air conditioner of the invention of claim 1, a plurality of radiating units are arranged in parallel on the ceiling, and a heating medium or a refrigerant is supplied to each of the radiating units. A radiation unit that includes a heat source supply unit, a human body sensor, a human body determination unit, and a flow rate adjustment unit, and radiates hot or cold heat to the air-conditioned space with internal circulation of a heat medium or refrigerant, or for each radiation unit group According to the output of the human body sensor arranged in, the distribution distribution ratio of each of the radiation units to the total flow rate of the heat medium or refrigerant in the human body determiner, and the distribution amount of the heat medium or refrigerant in the radiation unit By adjusting the temperature according to the set temperature, air conditioning can be performed according to the state of the personnel load in the air-conditioned space, so that a comfortable air space only in the necessary air-conditioned zone in the air-conditioned space can be obtained. Harmonization can, and can reduce the power consumption, moreover, since it is possible to easily deal with respect to personnel load change, always allows air conditioning in accordance with the state of the personnel load, help save energy.

A ceiling radiating air conditioner according to a second aspect of the present invention includes a plurality of radiating units arranged in parallel on the ceiling, heat source supplying means for supplying a heat medium or a refrigerant to each of the radiating units, and an ability code. , A capacity distributor and a flow rate adjusting means, and a radiation unit that radiates hot or cold heat to the air-conditioned space with the internal circulation of the heat medium or refrigerant, or a capacity code provided for each radiation unit group. Depending on the setting, the capacity distributor determines the distribution distribution ratio of each radiation unit to the total distribution of the heat medium or the refrigerant, and adjusts the distribution amount of the heat medium or the refrigerant in the radiation unit according to the set temperature. As a result, air conditioning can be performed according to the load condition in the air-conditioned space, and in the air-conditioned area where the load is excessive, the capacity may become insufficient or the set temperature may be exceeded. Since it does not take time, comfortable air conditioning can be performed, power consumption can be reduced, and load changes can be easily dealt with, so air conditioning can always be performed according to the load state. , Help to save energy.

[Brief description of drawings]

FIG. 1 is a side view showing a ceiling radiation type air conditioner which is a first embodiment and a second embodiment of the present invention.

FIG. 2 is an enlarged plan view showing a ceiling radiation type air conditioner which is a first embodiment of the present invention.

FIG. 3 is an enlarged plan view showing a ceiling radiation type air conditioner which is a second embodiment of the present invention.

FIG. 4 is a side view showing a conventional ceiling radiation type air conditioner.

FIG. 5 is an enlarged plan view showing a conventional ceiling radiation type air conditioner.

[Explanation of symbols]

 1 Cold Water Flow Path 2 Air-conditioned Space 3 Cold Heat Radiating Surface 4 Panel Radiating Unit 5 Refrigerator 6a, 6b Cold Water Circulation Path 7 Circulation Pump 10 Supply Pipe 11 Internal Cold Water Flow Passage Inlet 12 Internal Cooling Water Flow Passage Outlet 13 Discharge Pipe 14 Bypass Pipe 15 Automatic flow dividing three-way valve 16 Sensor 17 Setting device 18 Controller 19 Human body sensor 20 Human body judging device 21 Performance code 22 Capacity distributor

Claims (2)

[Claims] 1. A plurality of air conditioners are arranged in parallel on a ceiling of an air-conditioned space,
A radiation unit that radiates hot or cold heat to the air-conditioned space with the internal circulation of the heat medium or the refrigerant, and a heat source supply unit that is connected to each of the radiation units by a circulation path and supplies the heat medium or the refrigerant, A human body sensor provided for each of the radiation units or radiation unit groups, and a human body determining device that determines the distribution distribution ratio of each radiation unit with respect to the total circulation amount of the heat medium or the refrigerant, depending on the output of the human body sensor, A ceiling radiation type air conditioner comprising: a flow rate adjusting means for adjusting a distribution amount of a heat medium or a refrigerant in the radiation unit according to a set temperature. 2. A plurality of units are arranged side by side on the ceiling of the air-conditioned space,
A radiation unit that radiates hot or cold heat to the air-conditioned space with the internal circulation of the heat medium or the refrigerant, and a heat source supply unit that is connected to each of the radiation units by a circulation path and supplies the heat medium or the refrigerant, A capacity code arranged for each radiating unit or radiating unit group, and a capacity distributor that determines a distribution distribution ratio for each radiating unit with respect to the total flow rate of the heat medium or the refrigerant according to the setting of the capacity code, A ceiling radiation type air conditioner comprising: a flow rate adjusting means for adjusting a distribution amount of a heat medium or a refrigerant in the radiation unit according to a set temperature.