JP4701303B1 - Air conditioning system and building - Google Patents

Abstract

[PROBLEMS] To clearly consider the relationship between the temperature and duration of a contactable portion that may be contacted by a human body during heating by a heating means for preventing low-temperature burns, with sufficient theoretical support, A low-temperature burn prevention device capable of reliably preventing low-temperature burns is provided.
SOLUTION: A temperature sensor 14 for measuring a temperature T of an air inlet 7 as a contactable portion during heating by an indoor unit 3 of an air conditioner, and an inside of the air inlet 7 during heating by an indoor unit 3 of the air conditioner A timer 15 that measures the duration X after the temperature reaches a predetermined temperature, a storage unit 16 that stores in advance data on the relationship between the temperature _T and the duration X _{T at} which the low temperature burn occurs at the temperature T, and a temperature sensor 14, a timer 15, and a storage unit 16 are connected, and a control unit 17 that controls the indoor unit 3 of the air conditioner is provided.
[Selection] Figure 2

Description

The present invention relates to a building having an air conditioning system with a low temperature burn prevention device that to prevent low-temperature burn in contact potential portion in the heating by the heating means there is a possibility that a human body is in contact, and the air-conditioning system is there.

  Conventionally, in various heating means, measures for preventing low temperature burns have been taken.

  For example, in Patent Document 1, when heating in the steady operation mode is continued for a long time, when a predetermined time has elapsed, electric floor heating that reduces an energization rate and suppresses an abnormal increase in floor surface temperature is provided. A system is disclosed.

JP 2007-46844 A Japanese Patent No. 3440409 JP 2005-42958 A

  However, in the prior art including Patent Document 1, although prevention of low-temperature burn is taken into consideration, the temperature of the contact possibility portion where the human body may come into contact with the heating means for preventing the low-temperature burn. The fact that the relationship between duration and duration was not clearly considered was not heard, and the fact was that it lacked sufficient theoretical support.

  Furthermore, in the conventional air-conditioning system in which an air-conditioning apparatus is installed in the under-floor space of a building, there is a situation where even measures for preventing low-temperature burns have not been taken (see Patent Documents 2 and 3, etc.).

Therefore, the present invention clearly considers the relationship between the temperature and the duration of the contact possibility portion where the human body may contact during heating by the heating means for preventing low temperature burns, and has sufficient theoretical support. on top of that, it is an object to provide a building having an air conditioning system with a low temperature burn prevention device that can reliably prevent low-temperature burn, and the air-conditioning system.

In order to achieve the above object, an air conditioning system of the present invention is an air conditioning system for a building provided with an air conditioning device as a heating means and a low-temperature burn prevention device, and the air conditioning device is installed in an underfloor space of the building. The floor of the building is provided with an air supply port connected to the floor blowing portion of the air conditioner through a duct, and the low-temperature burn The prevention device includes a temperature measuring unit that measures the temperature T of the air supply port during heating by the air conditioner, and a continuation time X after the air supply port reaches a predetermined temperature during heating by the air conditioner. Time measuring means, storage means for preliminarily storing data of the relationship between the temperature T and the duration XT where a low temperature burn occurs at the temperature _T , the temperature measuring means, the duration measuring means, and the storage Means are connected, Control means for controlling the air conditioner, and during the heating by the air conditioner, the control means satisfies a condition that a low temperature burn occurs after the predetermined time has elapsed and the temperature T and the duration X are Before, it is set as the structure which controls the said air conditioner so that the said temperature T may be lowered | hung .
Here, the said air conditioner is also provided with the air_conditioning | cooling function, and it is good for the said blowing part for underfloor not to blow off cold air.

The air conditioner is an indoor unit of a heat pump type air conditioner, and may be connected to an outdoor unit installed outdoors.

  The building of the present invention includes the air conditioning system described above.

Such an air conditioning system of the present invention is a building air conditioning system including an air conditioning device as a heating means and a low-temperature burn prevention device.
The air conditioner is installed in the underfloor space of the building and has an air outlet for the floor and an air outlet for the floor. Mouth is provided.
In addition, the low-temperature burn prevention device measures the temperature measurement means for measuring the temperature T of the air supply port during heating by the air conditioner and the continuation time X after the air supply port reaches a predetermined temperature during heating by the air conditioner. and time measuring means, memory means for previously storing data of a relationship between duration X _T where low-temperature burn occurs when the temperature T and the temperature T, the temperature measuring means, the duration measuring means, and storage means is connected, Control means for controlling the air conditioner, and when heating by the air conditioner, the control means performs the temperature T after a predetermined time has elapsed and before the temperature T and the duration X satisfy the condition for low-temperature burns. It is set as the structure which controls an air conditioner so that it may fall.

Because of this structure, it is necessary to clearly consider the relationship between the temperature T of the air inlet and the duration X during heating by the air conditioner to prevent low temperature burns, and to ensure low temperature burns with sufficient theoretical support. Since the low-temperature burn prevention device that can be prevented is provided, it is not necessary to cause low-temperature burn even in an unexpected situation such as when a resident has fallen asleep for a long time near the air supply opening.

  Here, the air conditioner is an indoor unit of a heat pump type air conditioner, and when connected to an outdoor unit installed outdoors, the heat pump is used, so that it can have excellent energy saving performance. .

  Since such a building of the present invention is configured to include the above-described air conditioning system, it can be a building that exhibits the above-described effects.

It is explanatory drawing explaining the schematic structure of the building provided with the air conditioning system of the Example. It is a block diagram which shows schematic structure of the low temperature burn prevention apparatus of an Example. It is a graph showing the relationship between the duration X _T the temperature T and the low-temperature burn occurs. In the air-conditioning system of an Example, it is explanatory drawing which shows the state which performed the heating or cooling which has immediate effect. It is explanatory drawing which shows the state which performed underfloor heating in the air conditioning system of an Example. In the air-conditioning system of an Example, it is explanatory drawing which shows the state which performed both the heating which has immediate effect, and underfloor heating.

  DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention will be described based on examples shown in the drawings.

  First, the configuration of the embodiment will be described.

  Drawing 1 shows the schematic structure of building 1 provided with the air-conditioning system of an example.

  First, such a building 1 includes a foundation bottom concrete 1b constructed as foundation insulation, a foundation side wall concrete 1c erected on the side edge, an outer wall portion 1d erected on the foundation side wall concrete 1c, and an outer wall thereof. It is mainly comprised from the ceiling part 1e which block | closes the upper end opening of the part 1d.

  In the space surrounded by the ceiling portion 1e and the outer wall portion 1d, an underfloor space 4 and an upper floor space 5 such as a living room are separated by a floor portion 1a as a floor. In consideration of underfloor heating from the underfloor space 4 side in particular, the floor portion 1a allows heat transfer between the underfloor space 4 and the abovefloor space 5, and has no heat insulating material attached thereto. Yes.

  Further, a basic heat insulating material 10 such as glass wool is attached to the side of the underfloor space 4 of the side wall concrete 1c so that the heat of the warm air in the underfloor space 4 is prevented from leaking to the outside as much as possible.

  In the air conditioning system of the first embodiment, an indoor unit 3 of an air conditioner as an air conditioner is installed in the underfloor space 4.

  Here, the air conditioner as the air conditioner is of a heat pump type, and the indoor unit 3 is connected to the outdoor unit 2 installed outdoors.

  In addition, a heat medium circulation pipe 21 connected to the outdoor unit 2 is connected to the inside of the indoor unit 3 of the air conditioner.

  Further, the indoor unit 3 of the air conditioner is a unit having a dehumidifying function, and is provided with a drain 12 for drainage that penetrates from the underfloor space 4 to the outdoors.

  Moreover, the indoor unit 3 of this air conditioner has a suction part 31, a floor blowing part 32, and a floor blowing part 33.

  Furthermore, the indoor unit 3 of this air conditioner has a built-in fan (not shown) capable of blowing air from the floor blowing section 32 and the floor blowing section 33 with various strengths.

  Further, the on-floor blowing part 32 and the under-floor blowing part 33 are provided with on-off valves 32a and 33a made of an electric damper or the like, respectively.

  Further, the floor portion 1a is provided with an exhaust port 6 with a grill and two types of air supply ports 7 and 9.

  Here, the air supply port 7 is connected to the blowout part 32 on the floor of the indoor unit 3 of the air conditioner by a duct 82, and the other air supply port 9 communicates directly with the underfloor space 4 without passing through the duct. is doing.

  Moreover, the openable / closable gallery 11 comprising a plurality of rotatable blades 11a,...

  And between the suction part 31 and the exhaust port 6 of the indoor unit 3 of an air conditioner is also connected by the duct 81.

  Further, the air conditioning system of this embodiment includes a low-temperature burn prevention device S as shown in FIG.

  The low-temperature burn prevention device S of this embodiment includes a temperature sensor 14 as a temperature measurement means provided at the air supply port 7 as a contact possibility portion that a human body may contact, and an air conditioner (heating means). It comprises a timer 15 as duration measuring means provided in the indoor unit 3 of the air conditioner, a storage section 16 as storage means, and a control section 17 as control means.

  Here, the temperature sensor 14, the timer 15, and the storage unit 16 are connected to the control unit 17 by wire or wirelessly.

  First, the temperature sensor 14 measures the temperature T in the air supply port 7. Here, the measurement accuracy by the temperature sensor 14 is set to 0.1 ° C. increments.

  The timer 15 measures a duration X after the temperature T in the air supply port 7 reaches a predetermined temperature of 43 ° C. during heating by the indoor unit 3 of the air conditioner.

Further, the storage unit 16 is a storage medium such as a ROM for storing in advance data of a relationship between duration X _T where low-temperature burn occurs when the temperature T and the temperature T.

  Here, the conditions under which low-temperature burns occur are when the following [Equation 1] is satisfied.

[Formula 1 ] X _T = 10 ⁵² × T ^−31.185
This [Formula 1 ] is represented by a graph as shown in FIG.

  For example, when temperature T = 44 ° C., burns occur in duration X = about 6 hours.

Then, the control unit 17, during the heating by the air conditioner indoor unit 3 of, even after a predetermined time has elapsed, before satisfying the condition in which the temperature T and the duration X is low-temperature burn occurs, lowering the temperature T As a result, a signal is sent to the indoor unit 3 of the air conditioner for control.

  For example, if the floor space 5 does not readily warm to the set temperature in the cold season, etc., and the temperature T remains at about 44 ° C, the temperature T decreases to 43 ° C or less when the duration X is 5 hours and 50 minutes. To control.

Here, the graph of FIG. 3, when the temperature T is 1 ℃ higher, it can be seen that the time X _T where low-temperature burn occurs is substantially halved.

Thus, as when the temperature T is high, it may be set to lower the temperature T in the early Ri good.

  Here, as a method for lowering the temperature T, the total amount of heat supplied by reducing the rotational speed of the compressor built in the outdoor unit 2 of the air conditioner is reduced, or it is built in the indoor unit 3 of the air conditioner. There is a method of increasing the number of rotations of the fan and increasing the air volume to reduce the amount of heat per unit volume of the supplied air.

  The floor space 5 is provided with a controller 13 for setting a desired operation pattern.

  Next, the operation pattern of the air conditioning system of an Example is demonstrated.

  First, the pattern at the time of heating operation is demonstrated.

  (1) When it is desired to warm the floor space 5 only by heating having immediate effect, the on-off valve 32a of the on-floor outlet 32 of the indoor unit 3 of the air conditioner is opened, and the on-off valve of the under-floor outlet 33 is opened. 33a is closed.

  Further, the air supply port 9 not passing through the duct of the floor 1a is rotated by rotating the blades 11a of the louver 11 until they overlap each other.

  And if the indoor unit 3 of an air conditioner is operated, as shown in FIG. 4, warm air will convect only in the floor space 5, and the floor space 5 will be warmed immediately.

  (2) When the floor space 5 is to be heated only by underfloor heating, the on-off valve 32a of the on-floor outlet 32 of the indoor unit 3 of the air conditioner is closed, and the on-off valve 33a of the under-floor outlet 33 is opened. State.

  Moreover, the air inlet 9 which does not pass the duct of the floor part 1a maintains the wing board 11a, ... of the louver 11 in a substantially vertical state, and makes it an open state.

  When the indoor unit 3 of the air conditioner is operated, the underfloor space 4 is immediately warmed as shown in FIG. 5, and the heat is transmitted to the above-floor space 5 mainly through the floor portion 1a. The space 5 is warmed up evenly.

  (3) When it is desired to warm the floor space 5 with both immediate heating and underfloor heating in the severe cold season, the on-off valve 32a of the floor outlet 32 of the indoor unit 3 of the air conditioner is opened. The on-off valve 33a of the underfloor outlet 33 is also opened.

  Further, another air supply port 9 not passing through the duct of the floor portion 1a is also in an open state while maintaining the slats 11a of the louver 11 in a substantially vertical state.

  Then, when the indoor unit 3 of the air conditioner is operated, as shown in FIG. 6, the warm air convection only in the floor space 5 is transmitted to the floor space 5 mainly through the floor portion 1a, and the floor space 5 With the heat that uniformly warms up the floor, the space 5 on the floor immediately and uniformly warms up evenly.

  Next, the pattern during the cooling operation will be described.

  (4) When it is desired to cool the floor space 5 by cooling, the on-off valve 32a of the on-floor outlet 32 of the indoor unit 3 of the air conditioner is opened, and the on-off valve 33a of the below-floor outlet 33 is closed. .

  Further, another air supply port 9 not passing through the duct of the floor portion 1a rotates the blades 11a,...

  And if the indoor unit 3 of an air conditioner is operated, as shown in FIG. 4, cold air will convect only in the space 5 on the floor, and the space 5 on the floor will be cooled immediately.

  In this cooling operation, the controller 13 can set the desired humidity, so that it can be dehumidified by the dehumidifying function of the indoor unit 3 of the air conditioner.

  That is, during the operations (1) and (3) described above, the low-temperature burn prevention device S of the first embodiment may operate.

  Next, functions and effects of the embodiment will be described.

  The low-temperature burn prevention device S of such an embodiment prevents low-temperature burns at the air supply port 7 as a contact possibility portion where a human body may come into contact with the indoor unit 3 of the air conditioner as heating means. It is a low temperature burn prevention device.

And the temperature sensor 14 as a temperature measurement means which measures the temperature T of the air inlet 7 at the time of heating by the indoor unit 3 of the air conditioner, and the inside of the air inlet 7 at the time of heating by the indoor unit 3 of the air conditioner are, for example, 43 prestored ℃ a timer 15 serving as a continuation time measuring means for measuring the duration X after reaching a predetermined temperature, such as, data of the relationship between duration X _T where low-temperature burn occurs when the temperature T and the temperature T A storage unit 16 as a storage unit, a temperature sensor 14, a timer 15, and a storage unit 16 are connected, and a control unit 17 as a control unit that controls the indoor unit 3 of the air conditioner is provided.

  In addition, at the time of heating by the indoor unit 3 of the air conditioner, the control unit 17 lowers the temperature T after a predetermined time has elapsed and before the temperature T and the duration X satisfy the conditions for low-temperature burns. Thus, it is set as the structure which controls the indoor unit 3 of an air conditioner.

  With such a configuration, the relationship between the temperature T of the air inlet 7 and the duration X as a contactable portion by the indoor unit 3 of the air conditioner as a heating means for preventing low temperature burns is clearly considered. Therefore, it is possible to reliably prevent low-temperature burns with sufficient theoretical support.

  The air conditioning system of such an embodiment is a building air conditioning system provided with the low-temperature burn prevention device S described above.

  And a heating means is the indoor unit 3 of the air conditioner as an air conditioner installed in the underfloor space 4 of the building 1, and the contact possibility part is the air outlet unit 32 on the floor of the indoor unit 3 of the air conditioner. It is set as the structure which is the air supply opening 7 provided in the floor part 1a as a floor of the building 1 connected via the duct 82. FIG.

  With such a configuration, it is not necessary to cause low-temperature burns even in unexpected situations such as when a resident has fallen asleep near the air inlet 7 for a long time.

  Here, the air conditioner is an indoor unit 3 of a heat pump type air conditioner, and is connected to the outdoor unit 2 installed outdoors.

  For this reason, since a heat pump is used, it can be excellent in energy saving performance.

  Since the building 1 of such an Example is set as the structure provided with the above-mentioned air conditioning system, it can be set as the building which has an above-described effect.

  As mentioned above, although the form for implementing this invention was explained in full detail based on the Example with reference to drawings, the concrete structure is not limited to this Example, and is a grade which does not deviate from the summary of this invention. Design changes are included in the present invention.

  The low-temperature burn prevention device of the present invention is not limited to the air conditioning system of the above-described embodiment, and can be implemented by applying to various heating means.

1 Building 1a Floor (floor)
2 Outdoor unit of air conditioner 3 Indoor unit of air conditioner (air conditioner (heating means))
32 Outlet for floor 4 Under-floor space 5 Over-floor space 6 Exhaust port 7 Air supply port (possible part of contact)
81 Duct 82 Duct 9 Another air supply port 14 Temperature sensor (temperature measuring means)
15 Timer (Duration measuring means)
16 Storage unit (storage means)
17 Control unit (control means)
S Low temperature burn prevention device

Claims (4)

An air conditioning system for a building equipped with an air conditioner as a heating means and a low temperature burn prevention device,
The air conditioner is installed in an underfloor space of the building, and has an air outlet for the floor and an air outlet for the floor.
The floor of the building is provided with an air supply port connected via a duct to the outlet for the floor of the air conditioner ,
The low temperature burn prevention device includes a temperature measuring means for measuring the temperature T of the air supply port during heating by the air conditioner, and a duration X after the air supply port reaches a predetermined temperature during heating by the air conditioner. Duration measuring means for measuring ; storage means for preliminarily storing data on the relationship between the temperature T and the duration XT at which low temperature burns occur at the temperature _T ; the temperature measuring means; the duration measuring means; And a control means for controlling the air conditioner, and the control means, after heating by the air conditioner, after the elapse of a predetermined time, the temperature T and the duration X The air conditioning system is configured to control the air conditioner so as to lower the temperature T before satisfying the condition for causing low temperature burns . The air conditioning system according to claim 1, wherein the air conditioner also has a cooling function, and the underfloor blowing unit does not blow cold air. The air conditioning system according to claim 1 or 2 , wherein the air conditioner is an indoor unit of a heat pump type air conditioner, and is connected to an outdoor unit installed outdoors. A building comprising the air conditioning system according to any one of claims 1 to 3 .

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