JP2013160416A - Air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the efficiency of an air conditioning system and also to reduce the cost thereof.SOLUTION: An air conditioning system includes at least three heat storage tanks 2-4, i.e. a first heat storage tank 2 storing cold water cooled by a refrigerating machine 1, a second heat storage tank 3 to which at least one of an outgoing flow passage 33a for supplying heat exchange water to a heat exchanger 6 and a returning flow passage 33b for heat exchange water from the heat exchanger 6 is connected, and a third heat storage tank 4 storing hot water heated by the refrigerating machine 1, and also includes a humidity controller 5 supplied with the cold water from the first heat storage tank 2 during cooling operation and a radiation panel 7 supplied with cold water raised in temperature by heat exchange by the heat exchanger 6 through the humidity controller 5.

Description

  The present invention relates to an air conditioning system for adjusting temperature and humidity in spaces in various buildings such as hospitals, elderly facilities, road service facilities, and libraries, and more specifically, at least cooling using a radiant panel. It relates to air conditioning systems.

  As an air conditioning system that achieves both energy saving and comfort, radiant air conditioning using a radiant panel is currently attracting attention. In radiant air conditioning, a radiant panel including a heat medium flow pipe through which a heat medium flows and a panel body is disposed on the ceiling or wall surface of the air-conditioning target room, and cold water or hot water is allowed to flow through the heat medium flow pipe to Is a system that performs cooling or heating by radiant heat from the panel body (for example, see Patent Document 1).

JP 2009-115379 A

  In such an air conditioning system, at the time of cooling, the heat released by the condenser is released to the atmosphere through the cooling tower without being recovered, and is inefficient.

  Moreover, in the said patent document 1, the cold water supplied to the humidity controller which adjusts humidity, and the cold water supplied to a higher temperature radiation panel are each produced | generated by the separate refrigerator, and two refrigerators are produced | generated. is necessary.

  The present invention has been made in view of the above points, and an object thereof is to increase the efficiency of an air conditioning system and to reduce the cost.

  In order to achieve the above object, the present invention is configured as follows.

  (1) The present invention is an air conditioning system that performs at least cooling, and includes a first heat storage tank that stores cold water cooled by a refrigerator, a forward flow path that supplies heat exchange water to the heat exchanger, and the heat exchanger At least three heat storage tanks including a second heat storage tank to which at least one of the return flow paths of the heat exchange water from the heat exchanger is connected, and a third heat storage tank for storing hot water heated by the refrigerator. A humidity controller to which the cold water of the first heat storage tank is supplied, and a radiant panel to which the cold water heated by the heat exchanger through the humidity controller and heated is supplied.

  The cold water stored in the first heat storage tank may be cooled by circulating the cold water stored in the first heat storage tank between the refrigerator and the water stored in the second heat storage tank. You may make it cool with a machine and store it as cold water in the 1st heat storage tank, or add a heat storage tank and cool the water of the added heat storage tank with a refrigerator and store it as cold water in the 1st heat storage tank It may be.

  The forward flow path for supplying heat exchange water to the heat exchanger is preferably connected to the second heat storage tank, but may be connected to another heat storage tank.

  The return flow path of the heat exchange water from the heat exchanger may be connected to the second heat storage tank, may be connected to the first heat storage tank or the third heat storage tank, or a heat storage tank is added. You may connect to the added heat storage tank. When the return flow path of the heat exchange water is not connected to the second heat storage tank, it is preferable to supply cold water via the radiation panel to the second heat storage tank.

  The hot water stored in the third heat storage tank may be circulated so that the hot water stored in the third heat storage tank is heated by the refrigerator, or the water stored in the second heat storage tank is May be heated and stored in the third heat storage tank as hot water, or a heat storage tank is added and the water in the added heat storage tank is heated by a refrigerator and stored in the third heat storage tank as hot water. May be.

  The cold water in the first heat storage tank is supplied to the humidity controller, passes through the coil of the humidity controller, functions as a cooling coil, and performs dehumidification.

  According to the present invention, since the hot water generated by the heat of the condenser of the refrigerator is stored in the third heat storage tank, the hot water stored in the third heat storage tank can be used for hot water supply or the like, and the heat of the condenser As compared with the conventional example which has been released into the atmosphere through the cooling tower, the efficiency is increased.

  In addition, the cold water in the first heat storage tank is supplied to the humidity controller to perform dehumidification, and the cold water from the humidity controller is heated with the heat exchanger to exchange heat with the heat exchange water. The cold water is supplied to the radiant panel for cooling, that is, humidity adjustment and cooling are performed using the cold water in the first heat storage tank cooled by a single refrigerator. Two refrigerators are not required, and the cost can be reduced accordingly.

  Furthermore, in addition to the 1st heat storage tank in which cold water is stored, and the 3rd heat storage tank in which warm water is stored, it has at least three heat storage tanks with the 2nd heat storage tank in which the heat exchange water which heat-exchanges with cold water distribute | circulates. Therefore, water with different temperature ranges can be stored in each heat storage tank and used depending on the application.

  (2) In a preferred embodiment of the present invention, at the time of heating, instead of the cold water in the first heat storage tank, the hot water in the third heat storage tank is supplied to the humidity controller, Hot water that has been subjected to heat exchange in the heat exchanger and lowered in temperature is supplied via a humidity controller.

  According to this embodiment, the hot water in the third heat storage tank is supplied to the humidity controller and passes through the coil of the humidity controller to function as a heating coil, and the hot water from the humidity controller is used as a heat exchanger. Then, the temperature can be lowered by exchanging heat with the heat exchange water, and the warm water thus lowered can be supplied to the radiation panel for heating.

  (3) In another embodiment of the present invention, the cold water or the warm water passing through the radiation panel is supplied to the second heat storage tank.

  According to this embodiment, during cooling, the cold water from the first heat storage tank is heated through the humidity controller, the heat exchanger, and the radiation panel and supplied to the second heat storage tank. The hot water from the three heat storage tanks is cooled down via the humidity controller, the heat exchanger, and the radiation panel and supplied to the second heat storage tank, and the first and third heat storage tanks are provided in the second heat storage tank. The tank can store hot water in a different temperature range.

  (4) In still another embodiment of the present invention, a branch flow path is connected between the forward flow path and the return flow path, and a connection portion between the return flow path and the branch flow path includes A diversion unit is provided for diverting the heat exchange water in the return channel to the branch channel side and the downstream side of the return channel.

  It is preferable that the diversion means is constituted by a three-way valve, for example.

  According to this embodiment, the heat exchange water in the return flow path after heat exchange is diverted to the branch flow path and mixed with the heat exchange water in the forward flow path before heat exchange, so the diversion ratio of the diversion means is controlled. This makes it possible to adjust the temperature of the heat exchange water in the forward flow path supplied to the heat exchanger. Thereby, for example, the temperature of the heat exchange water can be adjusted so that the temperature of the cold water or the hot water supplied to the radiant panel after exchanging heat with the heat exchange water becomes a required temperature.

  (5) In another embodiment of the present invention, water in at least one of the first to third heat storage tanks is used by utilizing at least one of the heat of solar heat and exhaust heat from the hot water drainage. Heat.

  When using solar heat, for example, heat the water in the heat storage tank by circulating the water in the heat storage tank in the solar thermal pyroelectric device, or the heat storage tank in a circulation pipe embedded in a paved road heated by solar heat. The water in the heat storage tank can be heated by circulating the water.

  In the case of using the exhaust heat of the warm waste water, the heat of the heat storage tank can be heated by exchanging heat between the warm drainage such as a kitchen, a bathroom, a bathroom and a pellet stove and the heat storage tank water.

  The water in at least one of the first to third heat storage tanks heated by the exhaust heat of solar heat or hot waste water may be returned to the same heat storage tank or supplied to another heat storage tank. Alternatively, a heat storage tank may be added and supplied to the added heat storage tank.

  According to this embodiment, it is possible to store hot water in different temperature regions in the heat storage tank by using the exhaust heat of solar heat or hot waste water, and this hot water is supplied to hot water supply or hot water circulation piping buried in the road. It can be used for winter snow melting and other purposes.

  In addition, as another embodiment of the present invention, at least one heat storage tank other than the first to third heat storage tanks is added, and only the added heat storage tank is heated using the heat of solar heat or hot waste water. You may make it do.

  Thus, according to this invention, since the warm water produced | generated with the heat | fever of the condenser of the refrigerator is stored in a 3rd thermal storage tank, it becomes possible to utilize the warm water stored in this 3rd thermal storage tank for hot water supply etc. The efficiency is increased as compared with the conventional example.

  Moreover, temperature control and humidity control can be performed by one refrigerator, and two refrigerators are not required unlike the conventional example, and the cost can be reduced correspondingly.

  Furthermore, water having different temperature ranges can be stored in at least three heat storage tanks and used depending on the application.

FIG. 1 is a configuration diagram of an air conditioning system according to an embodiment of the present invention. FIG. 2 is a configuration diagram for explaining the operation during cooling. FIG. 3 is a configuration diagram for explaining an operation during heating. FIG. 4 is a configuration diagram of an air conditioning system according to another embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is an overall configuration diagram of an air conditioning system according to an embodiment of the present invention. In this embodiment, cooling and heating can be performed.

  The air conditioning system of this embodiment includes a refrigerator 1, first to third heat storage tanks 2 to 4 for storing hot water and cold water heated or cooled by the refrigerator 1, and the first heat storage tank 2 during cooling. The cold water is heated between the humidity controller 5 to which the hot water from the third heat storage tank 4 is supplied and the cold water or the hot water from the humidity controller 5 and the heat exchange water of the second heat storage tank 3 during heating. A first heat exchanger 6 that performs exchange and a plurality of radiant panels 7 that are supplied with cold water or hot water heat-exchanged by the first heat exchanger 6 are provided.

  As the refrigerator 1, a water-cooled heat pump chiller or a known water refrigerant roots refrigerator can be used. A water refrigerant roots refrigerator is an evaporator that circulates cold water to the load side, a roots compressor that compresses water refrigerant (steam), a condenser that circulates cooling water, and a water refrigerant (liquid) from the condenser to the evaporator. And a connecting pipe to return to) to constitute a refrigeration cycle.

  The humidity controller 5 includes a heat medium coil 45 through which cold water flows during cooling and warm water flows during heating, and a humidifier 46. The humidifier 46 does not operate during cooling, but operates only during heating. It is configured.

  Each of the plurality of radiating panels 7 includes a heat medium circulation pipe 7a through which cold water or hot water as a heat medium circulates and a panel body 7b, and is disposed on the ceiling or wall surface of the air-conditioning target room. Then, cold water or warm water is allowed to flow to raise or lower the temperature of the panel body 7b, and air conditioning is performed by radiant heat from the panel body 7b.

  Each of the heat storage tanks 2 to 4 is, for example, a cylindrical tank, and is illustrated in FIG. 1 in a state of being arranged up and down, but each of the heat storage tanks 2 to 4 is individually installed horizontally. ing. Water is stored in each of the heat storage tanks 2 to 4, and the water temperature is higher toward the upper side. The lower part of the first heat storage tank 2 and the lower part of the second heat storage tank 3 communicate with each other through a communication pipe 52. The second heat storage tank 3 is supplied with makeup water when the amount of water decreases.

  An inflow pipe 8 into which water from the second heat storage tank 3 flows is connected to the refrigerator 1, and a water supply pump 9 is provided in the inflow pipe 8. Water from the second heat storage tank 3 is cooled by the refrigerator 1 and flows out to the outflow pipe 10, and is stored in the first heat storage tank 2 as cold water.

  The refrigerator 1 is connected to a circulation pipe 12 that circulates cooling water heated by the heat of the condenser of the refrigerator 1 with the second heat exchanger 11. The circulation pipe 12 returns the cooling water heated by the refrigerator 1 to the second heat exchanger 11, and returns the cooling water heat-exchanged by the second heat exchanger 11 to the refrigerator 1. And a pipe 12b. The forward piping 12a is provided with a first electric valve 14, while the return piping 12b is provided with a second electric valve 15 and a circulation pump 13.

  An inflow pipe 20 and an outflow pipe 21 are connected to the second heat exchanger 11 in which the cooling water heated by the refrigerator 1 circulates, and a water supply pump 22 is provided in the inflow pipe 20. In the second heat exchanger 11, water from the second heat storage tank 3 flows in through the inflow pipe 20, and heat is raised by exchanging heat with the cooling water heated in the refrigerator 1. The stored water is stored as warm water in the third heat storage tank 4 through the outflow pipe 21. That is, the third heat storage tank 4 stores hot water heated by the cooling water of the refrigerator 1.

  The outgoing pipe 12a and the return pipe 12b through which the cooling water of the refrigerator 1 is circulated are connected to the miscellaneous water via first and second branch pipes 16 and 17 provided with third and fourth motor-operated valves 18 and 19, respectively. When the return pipe CDR and the forward pipe CDS are connected to each other and the temperature of the water in the second heat storage tank 3 that exchanges heat with the cooling water is high, the first to fourth electric valves 14, 15, 18, and 19 are opened and closed. And the refrigerator 1 can be cooled by miscellaneous water through the first and second branch pipes 16 and 17.

  The third heat storage tank 4 in which hot water heated by heat exchange with the cooling water of the refrigerator 1 is stored is provided with an overflow pipe 23 and a hot water supply pipe 25 connected to a mixed water tap 24 for hot water supply. The hot water supply pipe 25 is provided with a water supply pump 26.

  An inlet pipe 27 through which cold water from the first heat storage tank 2 or hot water from the third heat storage tank 4 flows in via the three-way valve 32 is connected to the inlet side of the heat medium coil 45 of the humidity controller 5. An outlet pipe 28 connected to the first heat exchanger 6 is connected to the outlet side of the coil 45. The inflow pipe 27 is provided with a fifth electric valve 29 and a water supply pump 30.

  A supply pipe 39 for supplying hot water from the third heat storage tank 4 is connected between the water supply pump 30 of the inflow pipe 27 and the fifth electric valve 29, and the sixth electric valve is connected to the supply pipe 39. 40 is provided. By switching the opening and closing of the fifth motor-operated valve 29 and the sixth motor-operated valve 40, cold water from the first heat storage tank 2 is supplied to the humidity controller 5 during cooling, and hot water from the third heat storage tank 4 is supplied to the humidity controller 5 during heating. It is configured so that it can be supplied.

  A bypass pipe 31 is connected between the inlet pipe 27 and the outlet pipe 28 of the humidity controller 1, and a water supply pump 30 is connected to a connection portion between the inlet pipe 27 and the bypass pipe 31. The three-way valve 32 for switching the cold water or hot water from the humidifier 5 or the bypass pipe 31 is provided. By switching the three-way valve 32, the humidity controller 5 can be bypassed when humidity adjustment is not necessary.

  When dehumidification is performed by the humidity controller 5, by supplying cold water to the heat medium coil 45, the heat medium coil 45 is caused to function as a cooling coil, and the air taken into the air-conditioning target chamber is supercooled, Moisture in the air is condensed on the surface of the heat medium coil 45 to perform dehumidification. In addition, when humidification is performed, hot water is supplied to the heat medium coil 45 so that the heat medium coil 45 functions as a heating coil, humidifies by the humidifier 46, and the air taken into the air-conditioning target room is heated and humid. State.

  A circulation pipe 33 through which the heat exchange water of the second heat storage tank 3 circulates is connected to the first heat exchanger 6 to which cold water or hot water is supplied via the humidity controller 5. The circulation pipe 33 returns the heat exchange water from the second heat storage tank 3 to the first heat exchanger 6 and the heat exchange water from the first heat exchanger 6 to the second heat storage tank 3. A return pipe 33b, and a circulation pump 34 is provided in the forward pipe 33a. Further, a branch pipe 35 constituting a branch flow path is connected between the forward pipe 33a and the return pipe 33b, and a three-way valve constituting a flow dividing means is connected to a connecting portion between the branch pipe 35 and the return pipe 33b. 36 is provided. With this three-way valve 36, the heat exchange water in the return pipe 33b can be divided into the branch pipe 35 side and the second heat storage tank 3 side which is the downstream side of the return pipe 33b.

  By controlling the diversion ratio by the three-way valve 36, the ratio of mixing the heat exchange water before the heat exchange of the forward pipe 33a with the heat exchange water after the heat exchange of the return pipe 33b is changed to change the first heat exchange. The temperature of the heat exchange water supplied to the vessel 6 can be adjusted.

  The cold water or hot water that has passed through the humidity controller 5 exchanges heat with the heat exchange water from the second heat storage tank 3 in the first heat exchanger 6, and the heat medium flow pipe 7 a of each radiation panel 7 through the inflow pipe 37. , Flows out to the outflow pipe 38 and is supplied to the second heat storage tank 3.

  In this embodiment, after the heat exchange with the heat exchange water by the first heat exchanger 6, the temperature of cold water or hot water supplied to the radiant panel 7 is detected by a water temperature sensor (not shown) installed in the inflow pipe 37, The diversion ratio of the three-way valve 36 is controlled by a controller (not shown) so that the temperature of the cold water at the time or the temperature of the hot water at the time of heating becomes the set temperature.

  A circulation pipe 42 that circulates cold water between the first heat storage tank 2 and the third heat exchanger 41 during heating is connected. The circulation pipe 42 includes an outgoing pipe 42 a provided with a circulation pump 43 and a return pipe 42 b. At the time of heating, the cold water from the first heat storage tank 2 is heated by the third heat exchanger 41 by exchanging heat with the hot water from the water heater 44.

   The controller for controlling the diversion ratio of the three-way valve 36 includes opening / closing of the motor-operated valves 14, 15, 18, 19, 29, 40, switching of the three-way valve 32, and pumps 9, 13, 22, 26, 30, 34, 43 and the refrigerator 1 etc. are configured to perform operation control.

  Next, the cooling operation of the air conditioning system having the above configuration will be described with reference to FIG.

  In the cooling operation, the water in the second heat storage tank 3 is supplied to the refrigerator 1 by the feed water pump 9, and is cooled to, for example, about 7 ° C. to 10 ° C. by the refrigerator 1 and supplied to the first heat storage tank 2 as cold water. Is done. The cooling water heated by the refrigerator 1 and heated to about 35 ° C. to 45 ° C., for example, is supplied to the second heat exchanger 11, and is supplied from the second heat storage tank 3 by the second heat exchanger 11. Return to refrigerator 1 after exchanging heat with water. The water from the second heat storage tank 3 is heated by exchanging heat with the cooling water in the second heat exchanger 11, for example, heated to about 30 ° C. to 40 ° C. and supplied to the third heat storage tank 4 as hot water. The

  In the cooling operation, the sixth conductive valve 40 provided in the supply pipe 39 extending from the third heat storage tank 4 to the inflow pipe 27 is closed, and the fifth conductive valve 29 provided in the inflow pipe 27 is opened.

  For example, cold water of about 7 ° C. stored in the first heat storage tank 2 is supplied to the humidity controller 5 via the inflow pipe 27 by the water supply pump 30, and by causing the heat medium coil 45 to function as a cooling coil, The air taken into the air conditioning target chamber is dehumidified, passes through the heat medium coil 45, is heated to, for example, about 10 ° C., and is supplied to the first heat exchanger 6. The cold water supplied to the first heat exchanger 6 exchanges heat with, for example, about 21 ° C. heat exchange water from the second heat storage tank 3, and is heated to, for example, about 18 ° C. Is supplied to each radiating panel 7 via the.

  The cold water supplied to each radiation panel 7 is heated to, for example, about 21 ° C. by heat absorption and supplied to the second heat storage tank 3 via the outflow pipe 38.

  With the above operation, cooling is performed by the radiating panel 7 and dehumidification is performed by the humidity controller 5.

  During this cooling operation, the temperature of the cold water stored in the first heat storage tank 2 is, for example, about 7 ° C. to 10 ° C., and the temperature of the water stored in the second heat storage tank 3 is, for example, 15 ° C. to 25 ° C. The temperature of the hot water stored in the third heat storage tank 4 is, for example, about 30 ° C. to 40 ° C.

  The hot water of about 30 ° C. to 40 ° C. stored in the third heat storage tank 4 can be used for hot water supply via the hot water supply pipe 25, and overflows via the overflow pipe 23 when not used for hot water supply.

  According to this embodiment, since the hot water produced | generated by the heat exchange with the cooling water heated with the condenser of the refrigerator 1 is stored in the 3rd thermal storage tank 4, and is utilized for hot water supply etc., the heat | fever discharge | released with the condenser The efficiency can be improved as compared with the conventional example that is released to the atmosphere through the cooling tower without collecting the.

  Further, the cold water in the first heat storage tank 2 cooled by the refrigerator 1 is supplied to the humidity controller 1 to perform dehumidification, and the cold water passing through the humidity controller 1 is converted into the second heat storage tank by the first heat exchanger 6. The temperature is raised by exchanging heat with the heat exchange water 3 and the cooled cold water is supplied to the radiant panel 7 for cooling, so that the single refrigerator 1 can perform dehumidification and cooling. The cost can be reduced as compared to Patent Document 1 that requires two refrigerators.

  Next, the heating operation of the air conditioning system having the above configuration will be described with reference to FIG.

  In the heating operation, the water in the second heat storage tank 3 is supplied to the refrigerator 1 by the water supply pump 9, and is cooled to, for example, about 20 ° C. to 25 ° C. by the refrigerator 1 and supplied to the first heat storage tank 2 as cold water. The The cooling water heated by the condenser of the refrigerator 1 and heated to, for example, about 40 ° C. to 45 ° C. is supplied to the second heat exchanger 11, and the second heat exchanger 11 uses the second heat storage tank. Exchange heat with water from 3 and return to refrigerator 1. The water from the second heat storage tank 3 is heated by exchanging heat with the cooling water in the second heat exchanger 11, for example, heated to about 35 ° C. to 40 ° C. and supplied to the third heat storage tank 4 as hot water. The

  In the heating operation, the sixth motor-operated valve 40 provided in the supply pipe 39 extending from the third heat storage tank 4 to the inflow pipe 27 is opened, and the fifth motor-operated valve 29 provided in the inflow pipe 27 is closed.

  For example, hot water of about 40 ° C. stored in the third heat storage tank 4 is supplied to the humidity controller 5 through the inflow pipe 27 by the water supply pump 30, and causes the heat medium coil 45 to function as a heating coil. Further, the humidifier 46 of the humidity controller 5 is operated to bring the air taken into the air-conditioning target room into a hot and humid state. The hot water that has passed through the heat medium coil 45 and has been cooled to about 37 ° C., for example, is supplied to the first heat exchanger 6. The hot water supplied to the first heat exchanger 6 exchanges heat with, for example, about 25 ° C. heat exchange water from the second heat storage tank 3, and is lowered to, for example, about 26 ° C. To be supplied to each radiation panel 7.

  The hot water supplied to each radiant panel 7 is cooled to, for example, about 23 ° C. by heat radiation and supplied to the second heat storage tank 3 via the outflow pipe 38.

  The cold water in the first heat storage tank 2 can be heated with hot water from the water heater 44 by circulating between it and the third heat exchanger 41. The cold water in the first heat storage tank 2 is supplied to the second heat storage tank 3 by the liquid level difference through the communication pipe 52 described above.

  With the above operation, heating is performed by the radiating panel 7 and humidification is performed by the humidity controller 5.

  During this heating operation, the temperature of the cold water stored in the first heat storage tank 2 is, for example, about 20 ° C. to 25 ° C., and the temperature of the water stored in the second heat storage tank 3 is, for example, 25 ° C. to 35 ° C. The temperature of the hot water stored in the third heat storage tank 4 is, for example, about 35 ° C. to 40 ° C.

  Hot water of about 35 ° C. to 40 ° C. stored in the third heat storage tank 4 can be used for hot water supply via the hot water supply pipe 25.

(Embodiment 2)
FIG. 4 is a configuration diagram corresponding to FIG. 1 of another embodiment of the present invention, and parts corresponding to the above-described embodiment are denoted by the same reference numerals.

  In this embodiment, a fourth heat storage tank 47 is provided, and water from the third heat storage tank 4 is supplied to the solar heat collector 49 via the water supply pump 48, and the solar heat collector 49 heats up the temperature. The heated water is supplied to the fourth heat storage tank 47. In the above-described embodiment, the hot water supply pipe 25 to which the mixing faucet 24 is connected is connected to the third heat storage tank 4, but in this embodiment, the hot water supply pipe 25 is connected to the fourth heat storage tank 47. Then, for example, hot water of about 60 ° C. from the fourth heat storage tank 47 is supplied to the mixing faucet 24 through the hot water supply pipe 25. The fourth heat storage tank 47 is provided with an overflow pipe 55.

  In this embodiment, water from the second heat storage tank 3 is supplied to the circulation pipe 51 embedded in the paved road, and hot water heated by solar heat in the circulation pipe 51 is stored in the third heat storage tank 4. Alternatively, when the road surface is covered with snow, the hot water in the third heat storage tank 4 can be supplied to the circulation pipe 51 to melt the snow, and the water from the circulation pipe 51 can be supplied to the second heat storage tank 3. I am doing so.

  That is, when warm water is stored in the third heat storage tank 4, the seventh electric valve 56 is closed, the eighth electric valve 57 is opened, the first water supply pump 50 is driven, and water from the second heat storage tank 3 is supplied. The hot water heated by the circulation pipe 51 is supplied to the third heat storage tank 4 through the eighth electric valve 57 through the first water supply pump 50.

  In addition, when melting snow on the road surface, the seventh electric valve 56 is opened, the eighth electric valve 57 is closed, the second water supply pump 58 is driven, and the hot water in the third heat storage tank 4 is supplied to the second water supply pump. Snow is melted by supplying to the circulation pipe 51 through 58 and supplied to the second heat storage tank 3 through the seventh electric valve 56.

  Furthermore, a power generator 54 that generates power using the energy dropped from miscellaneous water from a water storage tank 53 installed at a high place is installed, and the power generated by the power generator 54 is used as a power source for a water supply pump or the like.

In this embodiment, the water in the heat storage tank is heated using solar heat. However, as another embodiment of the present invention, for example, the solar heat collector 49 is used in a kitchen, a bathroom , a bathroom , a pellet stove, etc. A heat exchanger that exchanges heat between the warm drainage and the water in the third heat storage tank 4 may be used, and the water in the third heat storage tank 4 may be heated by warm drainage in a kitchen, bathroom, bathroom, etc. A heat storage tank may be further added.

  Other configurations are the same as those of the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2-4 1st-3rd heat storage tank 5 Humidifier 6 1st heat exchanger 7 Radiation panel 24 Mixer tap (hot water supply)
36 Three-way valve (diversion means)
47 4th heat storage tank 49 Solar collector (temperature of kitchen, bathroom, bathroom, pellet stove, etc.)
Heat exchanger with waste water)
51 Circulation piping (heat collection, snow melting)

Claims (5)

An air conditioning system that at least performs cooling,
At least one of the first heat storage tank for storing the cold water cooled by the refrigerator, the forward flow path for supplying the heat exchange water to the heat exchanger, and the return flow path for the heat exchange water from the heat exchanger Including at least three heat storage tanks, a second heat storage tank connected to the third heat storage tank and a third heat storage tank that stores hot water heated by the refrigerator,
A humidity controller to which the cold water of the first heat storage tank is supplied;
A radiant panel that is supplied with cold water that has been heat-exchanged and heated by the heat exchanger via the humidity controller;
An air conditioning system characterized by that. At the time of heating, instead of the cold water of the first heat storage tank, the hot water of the third heat storage tank is supplied to the humidity controller, and the radiant panel is connected to the heat exchanger via the humidity controller. Hot water that has been heat-exchanged and cooled down is supplied,
The air conditioning system according to claim 1. The cold water or the hot water via the radiation panel is supplied to the second heat storage tank,
The air conditioning system according to claim 1 or 2. A branch flow path is connected between the forward flow path and the return flow path, and heat exchange water in the return flow path is connected to the branch flow path at a connection portion between the return flow path and the branch flow path. A diversion means for diverting to the road side and the downstream side of the return flow path is provided;
The air conditioning system according to any one of claims 1 to 3. Utilizing at least one of the heat of solar heat and exhaust heat from the hot water to heat the water in at least one of the first to third heat storage tanks;
The air conditioning system according to any one of claims 1 to 4.

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