JP3699097B2 - Air conditioning system - Google Patents

Description

  This invention relates to heat source water having a predetermined temperature generated by a heat exchanger using heat source water having a predetermined temperature generated by a constant flow type heat source device such as a refrigerator or heat stored in a heat storage medium stored in a heat storage tank. The present invention relates to an air conditioning system that cools and heats buildings and the like by supplying to a load side device such as an air conditioner.

  An example of this type of air conditioning system is shown in FIG. As shown in the figure, the air conditioning system includes a heat source side system 50 that generates heat source water of a predetermined temperature (for example, cold water at 7 ° C.), and heat source water of a predetermined temperature generated by the heat source side system 50. A load side system 60 in which a load side device 61 such as an air conditioner for processing an air conditioning load is installed, and the heat source side system 50 and the load side system 60 use the forward header SH and the return header RH. Are connected to each other.

  The heat source side system 50 has heat held by a heat source device system 50a in which a constant flow type heat source device 51a such as a refrigerator and a primary pump 52a are installed, and a heat storage medium (water) stored in a heat storage tank 53. A heat exchanger 51b that generates heat source water at a predetermined temperature and a heat exchanger system 50b in which a primary pump 52b is installed. Depending on the air conditioning load, the heat source equipment system 50a and the heat exchanger The start / stop control of the system 50b is performed.

  Further, the heat storage medium stored on the heat storage side in the heat storage tank 53 (the low temperature side in the case of cooling and the high temperature side in the case of heating) is supplied to the heat exchanger 51b by the heat storage secondary pump 54, and the heat exchanger 51b. The heat storage medium radiated by the heat is returned to the heat radiating side (high temperature side for cooling, low temperature side for heating) in the heat storage tank 53, and the temperature of the heat source water sent from the heat exchanger 51b is predetermined. The heat storage secondary pump 54 adjusts the circulation amount of the heat storage medium by changing the rotational speed of the heat storage secondary pump 54 with an inverter so as to be held at the temperature.

  The load side system 60 includes a secondary pump 62 that sends heat source water having a predetermined temperature introduced into the forward header SH by the heat source side system 50 to the load side device 61 via the load side forward header 64, and an air conditioning load. Accordingly, a two-way valve 63 that adjusts the amount of heat source water supplied to the load-side device 61 is installed, and the two-way valve 63 opens and closes according to the air conditioning load. Even when the water supply amount changes, the secondary pump 62 is controlled by the inverter so that the water supply differential pressure, that is, the differential pressure between the load-side forward header 64 and the forward header SH is maintained at the set differential pressure. The number of rotations can be changed.

  Moreover, since the primary pumps 52a and 52b of the heat source side system 50 are configured to send the heat source water having the rated flow rate to the forward header SH, the amount of heat source water supplied to the load side device 61 in the load side system 60 However, if the amount of heat source water introduced into the forward header SH by the heat source side system 50 is smaller than the amount of heat source water introduced into the forward header SH, the surplus header of the heat source water introduced into the forward header SH is directly returned to the return header RH. SH and return header RH are connected by a bypass pipe BP.

Japanese Patent Laid-Open No. 08-145417

  By the way, as mentioned above, in the air conditioning system provided with the constant flow type heat source side system 50, the case where the air conditioning load and the capabilities of the heat source side system 50 (the heat source device 51a and the heat exchanger 51b) are balanced is excluded. Thus, since the heat source side system 50 is operated in a state where the surplus heat source water is returned to the header RH from the forward header SH via the bypass pipe BP, the return header RH is normally returned from the load side system 60. The heat source water 51a and the heat exchanger 51b are mixed in a state where the heat source water after heat radiation introduced into the heat source water and the heat source water before heat radiation returned from the forward header SH and introduced into the header RH are mixed via the bypass pipe BP. Therefore, the incoming temperature of the heat source water to the heat source device 51a and the heat exchanger 51b increases (cooling) or decreases (warm up) to the designed incoming temperature calculated assuming the maximum air conditioning load. H) that there is little to be.

  When heat source water that has not risen or lowered to the design water temperature is introduced to the heat source equipment 51a such as a refrigerator in the heat source equipment system 50a, the capacity control of the heat source equipment 51a works, and the heat source equipment 51a operates while suppressing its capacity. Since heat source water having a predetermined temperature is generated by performing the above, there is no particular problem.

  On the other hand, when heat source water that has not increased or decreased to the design incoming water temperature is introduced into the heat exchanger 51b in the heat exchanger system 50b, the heat source water is supplied from the heat storage side of the heat storage tank 53 to the heat exchanger 51b. After radiating heat with the heat exchanger 51b, the temperature of the heat storage medium returned to the heat radiating side of the heat storage tank 53 is also raised (cooling) or lowered (heating) to the design return temperature calculated assuming the maximum air conditioning load. In other words, the heat storage medium that does not use up the stored heat is stored on the heat radiation side of the heat storage tank 53.

  However, once the heat storage medium is returned to the heat radiating side of the heat storage tank 53, the heat stored in the heat storage medium is used to process the air conditioning load, that is, to generate heat source water at a predetermined temperature. Therefore, there is a problem that the heat stored in the heat storage tank 53 cannot be used efficiently.

  Further, since the retained heat was hardly used, when the heat storage medium having a temperature close to the heat storage temperature is partially stored in the heat storage tank 53, when performing the heat storage operation at night using midnight power or the like, the capacity As a result of the control, the heat source device such as a refrigerator may stop operation in the middle, and there is a problem that the heat storage operation cannot be performed smoothly and reliably.

  Then, the subject of this invention is providing the air conditioning system which can utilize the heat | fever stored in the thermal storage tank as efficiently as possible.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a predetermined configuration generated by a heat source side system and a heat source side system that generate heat source water of a predetermined temperature, which are connected to each other via a forward header and a return header. A load-side system in which load-side equipment that processes air-conditioning load using heat source water of temperature is installed, and the heat-source-side system is individually connected to the forward header and the return header, and has a predetermined temperature. A heat exchanger that generates heat source water at a predetermined temperature using heat source equipment that generates heat source water and a heat source equipment system in which a primary pump for the heat source equipment is installed and heat stored in a heat storage tank, and A heat exchanger system in which a primary pump for a heat exchanger is installed, and the load side system sends heat source water at a predetermined temperature introduced into the forward header by the heat source side system to the load side device. Secondary pump A surplus of heat source water at a predetermined temperature introduced into the forward header by the heat source side system is returned to the return header via a bypass flow path, and the heat source side system is In the air conditioning system in which start / stop control of the heat source device system and the heat exchanger system is performed according to an air conditioning load, the heat exchanger system is connected to the return header via the bypass channel. Provided is an air conditioning system characterized in that the heat source water having a predetermined temperature to be returned is connected to the return header directly or indirectly through the load side system so as not to be introduced into the heat exchanger. is there. Here, for convenience, the terms “forward header” and “return header” are used, but the same functions as “forward header” and “return header” can be realized by piping. It goes without saying that such an air conditioning system is also included in the present invention.

  Moreover, when it is desired to preferentially use the heat stored in the heat storage tank, in the state where both the heat source device system and the heat exchanger system are operating as in the air conditioning system of the invention according to claim 2. The heat source water supply amount in the heat source device system is kept at a predetermined maximum water supply amount for the heat source device, and the heat source water supply amount in the heat exchanger system is supplied to the heat exchanger. On the other hand, it is desirable to keep the predetermined maximum water supply amount.

  However, in that case, since the bypass flow rate of the heat source water returned to the return header via the bypass flow path may be increased, the heat source equipment system and the heat are changed as in the air conditioning system of the invention according to claim 3. In a state where both of the exchanger systems are operating, the water supply amount of the heat source water in the heat exchanger system is maintained at a predetermined maximum water supply amount for the heat exchanger, and to the heat source device. If the amount of heat source water supplied in the heat source equipment system is adjusted so that the incoming temperature of the heat source water becomes a predetermined design incoming temperature, the power of the primary pump for the heat source equipment is minimized. Can be suppressed. In this case, it goes without saying that a variable flow type heat source device must be employed.

  Moreover, when it is desired to preserve the heat stored in the heat storage tank, in the state where both the heat source device system and the heat exchanger system are operating as in the air conditioning system of the invention according to claim 4. In addition, the water supply amount of the heat source water in the heat source device system is kept at a predetermined maximum water supply amount for the heat source device, and the incoming water temperature of the heat source water to the heat source device is predetermined. It is desirable to adjust the amount of water supplied from the heat source water in the heat exchanger system so as to reach the temperature.

  As described above, in the air conditioning system according to the first aspect of the present invention, the heat source water having a predetermined temperature returned to the header through the bypass flow path is not introduced into the heat exchanger. Heat source water that is delivered from the load-side equipment and is equal to or higher than the designed water temperature calculated assuming the maximum air conditioning load is introduced into the heat exchanger. Therefore, the temperature of the heat storage medium that is supplied from the heat storage side of the heat storage tank to the heat exchanger and radiated by the heat exchanger and then returned to the heat dissipation side of the heat storage tank is calculated by assuming the maximum air conditioning load. The heat storage tank will be used because the heat storage medium that uses up the stored heat will be stored on the heat dissipation side of the heat storage tank, because it will rise above (cooling) or lower than the design return temperature (heating). It is possible to efficiently use the heat stored in.

  In the air conditioning system of the invention according to claim 2 or claim 3, the heat source water having the maximum water supply amount that has risen above the design water temperature (during cooling) or decreased below the design water temperature (during heating) The heat exchanger system operates at maximum capacity, and the heat source system system operates while suppressing the capacity so as to compensate for the shortage of air conditioning load that the heat exchanger system cannot handle. Therefore, the air conditioning operation can be performed while preferentially using the heat stored in the heat storage tank.

  Further, in the air conditioning system of the invention according to claim 4, since the heat source water at the design water temperature is introduced into the heat source equipment, the heat source equipment system can be operated at the maximum capacity and the heat source equipment system can process. Since the heat exchanger system is operated while suppressing the capacity so as to compensate for the shortage of the air conditioning load that cannot be performed, the air conditioning operation can be performed while preserving the heat stored in the heat storage tank as much as possible.

  Hereinafter, embodiments will be described with reference to the drawings. As shown in FIG. 1, the air conditioning system 1 includes a load side system 10 in which a load side device 14 such as an air conditioner that processes an air conditioning load is installed, and heat source water of a predetermined temperature (for example, 7 ° C. cold water). The heat source side system 20 that is generated and sent to the load side system 10 is connected to each other via the forward header 31 and the return header 32. The forward header 31 and the return header 32 are connected to the bypass pipe 33. Are connected to each other.

  The load side system 10 includes a load side forward header 13 connected to the forward header 31 via a load side forward piping 11a where the secondary pump 11 is installed and a load side bypass piping 12a where the bypass valve 12 is installed. The load side device 14 is connected to the load side forward header 13 and the return header 32 via the load side pipe 15.

  A two-way valve 16 is installed upstream of the load-side device 14 in the load-side piping 15, and the heat source water to the load-side device 14 is opened and closed by opening and closing the two-way valve 16 according to the air conditioning load. The supply amount is adjusted.

  Moreover, the secondary pump 11 can adjust the water supply amount by changing the rotation speed by an inverter, and the two-way valve 16 opens and closes according to the air conditioning load. Even when the amount of water supplied to the side device 14 changes, the differential pressure between the load side forward header 13 and the forward header 31 detected by the differential pressure transmitter 41, that is, the differential pressure of water delivery to the load side system 10. The programmable logic controller 40 controls the rotational speed of the secondary pump 11 so that the differential pressure becomes the set differential pressure.

  However, when the two-way valve 16 of the load side system 10 is fully closed or close to the fully closed state, the secondary pump 11 performs a deadline operation or an operation close thereto, so that the amount of water supplied to the load side device 14 is reduced. When the number is reduced, the bypass valve 12 is opened, and the heat source water introduced into the load-side forward header 13 by the secondary pump 11 is returned to the forward header 31 via the load-side bypass pipe 12a. ing.

  The heat source side system 20 includes a heat source device system 20a in which a constant flow type heat source device 21a such as a refrigerator and a primary pump 22a for heat source device are connected to an outgoing header 31 and a return header 32 by a heat source side pipe 23a. The heat exchanger 21b and the heat exchanger primary pump 22b that generate heat source water at a predetermined temperature using the heat stored in the heat storage medium (water) stored in the heat storage tank 24 travels by the heat source side pipe 23b. The heat source system 20b is connected to the header 31 and the load side pipe 15 on the downstream side of the load side device 14, and the heat source water having a predetermined temperature generated by the heat source device 21a and the heat exchanger 21b. The heat pump is sent to the forward header 31 by the primary pump 22a for heat source equipment and the primary pump 22b for heat exchanger. As shown in FIG. 1, the load side pipe 15, the bypass pipe 33 and the heat source side pipe 23 a are located on both sides of the connection part of the bypass pipe 33 with the connection part of the load side pipe 15 and the heat source side pipe 23 a positioned therebetween. As shown, each is connected to the return header 32.

  Further, the heat storage medium stored on the heat storage side in the heat storage tank 24 (the low temperature side in the case of cooling and the high temperature side in the case of heating) is transferred to the heat exchanger by the heat storage secondary pump 25 via the heat storage secondary pipe 26. The heat storage medium supplied to the heat exchanger 21b and radiated by the heat exchanger 21b is returned to the heat radiating side of the heat storage tank 24 (the high temperature side in the case of cooling, the low temperature side in the case of heating). The programmable logic controller 40 is configured so that the water supply temperature of the heat source water sent from the heat exchanger 21b detected by the water supply temperature sensor 42 installed on the downstream side of the heat exchanger 21b is maintained at a predetermined temperature. The supply amount of the heat storage medium to the heat exchanger 21b is adjusted by changing the rotational speed of the heat storage secondary pump 25 by the inverter.

  Further, the programmable logic controller 40 includes a load-side flow rate detected by a flow meter 43 installed between the load-side device 14 in the load-side pipe 15 and the connection portion of the heat source-side pipe 23b, and the load-side system 10. The air conditioning load is calculated on the basis of the difference in water supply temperature in the water, that is, the temperature difference between the forward header 31 and the return header 32, and the programmable logic controller 40 responds to the calculated air conditioning load. Thus, on / off control of the heat source device system 20a and the heat exchanger system 20b is performed.

  Thus, in this air conditioning system 1, the load side system 10 performs start / stop control of the heat source device system 20a and the heat exchanger system 20b in the heat source side system 20 while adjusting the water supply amount according to the air conditioning load. Therefore, when the water supply amount of the heat source side system 20 exceeds the water supply amount of the load side system 10, the surplus amount passes through the bypass pipe 33 and is returned from the forward header 31 to the return header 32. Yes.

  Furthermore, the heat exchanger primary pump 22b of the heat exchanger system 20b can adjust the amount of heat source water supplied to the forward header 31 by changing the rotation speed by an inverter. The incoming temperature of the heat source water to the heat source device 21a detected by the incoming water temperature sensor 44 installed between the connection portion of the bypass pipe 33 and the connection portion of the heat source side pipe 23a in the return header 32 has the maximum air conditioning load. The programmable logic controller 40 changes the rotational speed of the primary pump 22b for heat exchanger using an inverter so that the design water temperature (for example, 12 ° C.) calculated on the assumption is obtained, so that the forward header 31 The amount of heat source water delivered to the water source, that is, the amount of bypass water of the heat source water returned from the header 31 to the header 32 through the bypass pipe 33 is returned. So that the can be.

  As described above, in this air conditioning system 1, the heat source side pipe 23 b in the heat exchanger system 20 b is connected to the downstream side of the load side equipment 14 in the load side pipe 15 of the load side system 10. The maximum air conditioning load that is sent from the load-side device 14 in the load-side system 10 without the heat source water having a predetermined temperature before being radiated returned to the header 32 through the 33 is not introduced into the heat exchanger 21b. Heat source water having a temperature equal to or higher than the designed water temperature calculated on the assumption is introduced as it is into the heat exchanger 21b. Therefore, the temperature of the heat storage medium that is supplied from the heat storage side of the heat storage tank 24 to the heat exchanger 21b, radiated by the heat exchanger 21b, and then returned to the heat dissipation side of the heat storage tank 24 is calculated assuming the maximum air conditioning load. The temperature rises above the designed return temperature (during cooling) or falls below the designed return temperature (during heating), and the heat storage medium that uses up the stored heat is stored on the heat dissipation side of the heat storage tank 24. Therefore, it is possible to efficiently use the heat stored in the heat storage tank 24.

  Further, in a state where both the heat source device system 20a and the heat exchanger system 20b are operating, the water supply amount of the heat source water in the heat exchanger system 20b is maintained at a predetermined maximum water supply amount. When the heat exchanger primary pump 22b is operated at a constant speed at a predetermined maximum number of rotations, the heat exchanger system 20b in which heat source water having a temperature equal to or higher than the design water temperature is introduced into the heat exchanger 21b is operated at the maximum capacity. The capacity control of the heat source device 21a in the heat source device system 20a works so as to compensate for the shortage of the air conditioning load that cannot be processed by the heat exchanger system 20b, and the heat source device 21a operates while suppressing its capacity. Therefore, the air conditioning operation can be performed while preferentially using the heat stored in the heat storage tank 24.

  Conversely, in the state where both the heat source equipment system 20a and the heat exchanger system 20b are operating, as described above, the incoming temperature of the heat source water to the heat source equipment 21a detected by the incoming water temperature sensor 44 is the design incoming water. Heat source water to the forward header 31 of the heat exchanger system 20b by changing the rotation speed of the primary pump 22b for the heat exchanger of the heat exchanger system 20b by an inverter so that the temperature (for example, 12 ° C.) is obtained. If the amount of bypass water of the heat source water at a predetermined temperature returned from the forward header 31 through the bypass pipe 33 and returned to the header 32 is adjusted, the heat source device system 20a operates at the maximum capacity. Because the heat exchanger system 20b is operated while suppressing the capacity so as to compensate for the shortage of the air conditioning load that cannot be processed by the heat source equipment system 20a, While sparing as possible heat stored in the thermal bath 24, it is possible to perform air conditioning operation.

  In the above-described embodiment, the heat exchanger system 20b is connected to the downstream side of the forward header 31 and the load side device 14 in the load side piping 15, but is not limited to this, for example, As shown in FIG. 2, the load side pipe 15 and the bypass pipe 33 are connected to the center of the return header 32, and the heat source of the heat source device system 20 a is connected to the end of the return header 32 on the connection part side of the bypass pipe 33. In addition to connecting the side pipe 23a and connecting the heat source side pipe 23b of the heat exchanger system 20b to the end of the return header 32 on the connection side of the load side pipe 15, the return header passes through the bypass pipe 33. The heat exchanger system 20b may be directly or indirectly connected to the return header 32 so that the heat source water having a predetermined temperature before returning to the heat exchanger 21b is not introduced into the heat exchanger 21b.

  Moreover, although each embodiment mentioned above demonstrated the case where the return header 32 was provided, it is not limited to this, For example, as shown in FIG. 3, each piping is connected suitably, without providing a return header. By doing so, the same effect can be realized.

  Moreover, although the heat source side system | strain 20 demonstrated the air conditioning system 1 provided with the one heat source apparatus system | strain 20a and the one heat exchanger system | strain 20b in embodiment mentioned above, it is not limited to this, The present invention can also be applied to an air conditioning system including two or more heat source device systems and one heat exchanger system.

  Moreover, although the load side system | strain 10 demonstrated the air conditioning system 1 provided with the one secondary pump 11 in embodiment mentioned above, it is not limited to this, It is provided with two or more secondary pumps. Needless to say, the present invention can be applied to an air-conditioning system. In that case, while simultaneously operating a plurality of secondary pumps, the number of revolutions can be changed in the same way, It is also possible to control the number of pumps.

  In the above-described embodiment, the load-side bypass pipe 12a is connected to the load-side forward header 13 and the forward header 31. However, the present invention is not limited to this, and is connected to the load-side forward header 13, for example. It is also possible to connect the load side bypass pipe to the return header 32 instead of the forward header 31. In this case, the load side bypass pipe is returned to the return header 32 through the load side bypass pipe and has a predetermined temperature before heat dissipation. Needless to say, it is necessary to prevent the heat source water from being introduced into the heat exchanger 21b.

  In the embodiment described above, the programmable logic controller 40 performs the rotational speed control of the heat exchanger primary pump 22b, the heat storage secondary pump 25, the secondary pump 11 and the opening / closing control of the bypass valve 12. However, the present invention is not limited to this, and various control means such as a temperature regulator and a differential pressure regulator can be used in combination.

  Moreover, although each embodiment mentioned above demonstrated the air-conditioning system 1 using the constant flow type heat source apparatus 21a and the primary pump 22a for heat source apparatuses, it is not limited to this, The variable flow type heat source apparatus It is also possible to use a primary pump for heat source equipment. In this case, in the state where both the heat source equipment system and the heat exchanger system are operating, the amount of heat source water in the heat exchanger system is The primary pump for heat exchanger is operated at a constant speed at a predetermined maximum speed so that the predetermined maximum water supply amount is maintained, and the incoming temperature of the heat source water to the heat source device is the designed incoming temperature. Therefore, if the amount of heat source water supplied in the heat source equipment system is adjusted, the bypass amount of the heat source water returned to the header via the bypass pipe is reduced, so heat storage The heat accumulated in the while utilizing priority, it becomes possible to perform the air conditioning operation, the power of the primary pump heat source device can be minimized.

  Conversely, when air conditioning operation is performed while preserving the heat stored in the heat storage tank as much as possible, the amount of heat source water delivered in the heat source equipment system when both the heat source equipment system and the heat exchanger system are operating However, the primary pump for the heat source device is operated at a constant speed at a predetermined maximum rotation number so that the predetermined maximum water supply amount is maintained, and the incoming temperature of the heat source water to the heat source device is By changing the number of rotations of the primary pump for the heat exchanger of the heat exchanger system by the inverter so that the designed water temperature is reached, the amount of heat source water delivered to the forward header of the heat exchanger system, that is, the bypass pipe Needless to say, it is necessary to adjust the amount of bypass water of the heat source water at a predetermined temperature that passes through the return header and returns to the header.

  Moreover, in each embodiment mentioned above, it adjusts the amount of water supply of the heat source water in a heat exchanger system or a heat source equipment system by adjusting the rotation speed of the primary pump for heat exchangers or the primary pump for heat source equipment. However, the present invention is not limited to this. For example, a constant flow pump is used as a primary pump for a heat exchanger or a primary pump for a heat source device, and an opening / closing operation of a flow control valve or the like provided in the heat source side piping. Thus, it is also possible to adjust the amount of heat source water delivered in the heat exchanger system and the heat source equipment system.

It is a schematic structure figure showing one embodiment of an air-conditioning system concerning this invention. It is a partial block diagram which shows the connection state of the heat exchanger system | strain in the air conditioning system which is other embodiment. It is a partial block diagram which shows the connection state of the heat exchanger system | strain in the air conditioning system which is other embodiment. It is a schematic block diagram which shows the conventional air conditioning system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioning system 10 Load side system 11 Secondary pump 11a Load side forward piping 12 Bypass valve 12a Load side bypass piping 13 Load side forward header 14 Load side equipment 15 Load side piping 16 Two-way valve 20 Heat source side system 20a Heat source equipment system 20b Heat exchanger system 21a Heat source equipment 21b Heat exchanger 22a Primary pump for heat source equipment 22b Primary pump for heat exchanger 23a, 23b Heat source side piping 24 Heat storage tank 25 Heat storage secondary pump 26 Heat storage secondary piping 31 Outgoing header 32 Return header 33 Bypass pipe (bypass flow path)
40 Programmable Logic Controller 41 Differential Pressure Transmitter 42 Water Supply Temperature Sensor 43 Flowmeter 44 Water Entrance Temperature Sensor

Claims (4)

A heat source side system that generates heat source water of a predetermined temperature and a load side device that processes the air conditioning load using the heat source water of a predetermined temperature generated by the heat source side system, which are connected to each other via a forward header and a return header With a load side system installed with
The heat source side system is stored in a heat storage tank and a heat source apparatus system in which a heat source apparatus that generates heat source water of a predetermined temperature and a primary pump for the heat source apparatus are installed, which are individually connected to the forward header and the return header. A heat exchanger that generates heat source water at a predetermined temperature using heat stored in the heat storage medium, and a heat exchanger system in which a primary pump for the heat exchanger is installed,
The load side system has a secondary pump that sends heat source water of a predetermined temperature introduced into the forward header by the heat source side system to the load side device,
The excess heat source water of a predetermined temperature introduced into the forward header by the heat source side system is returned to the return header via a bypass flow path,
The heat source side system is an air conditioning system in which start / stop control of the heat source equipment system and the heat exchanger system is performed according to an air conditioning load,
The heat exchanger system directly or indirectly through the load side system so that heat source water of a predetermined temperature returned to the return header via the bypass flow path is not introduced into the heat exchanger. An air conditioning system characterized by being connected to a header.   In a state where both the heat source device system and the heat exchanger system are operating, the water supply amount of the heat source water in the heat source device system is held at a maximum water supply amount that is predetermined for the heat source device. The air conditioning system according to claim 1, wherein a water supply amount of the heat source water in the heat exchanger system is maintained at a predetermined maximum water supply amount for the heat exchanger.   In a state where both the heat source device system and the heat exchanger system are in operation, the amount of water supplied from the heat source water in the heat exchanger system is maintained at a predetermined maximum water supply amount for the heat exchanger. In addition, the amount of heat source water supplied in the heat source device system is adjusted so that the temperature of the heat source water entering the heat source device becomes a predetermined design water temperature. Air conditioning system.   In a state where both the heat source device system and the heat exchanger system are operating, the water supply amount of the heat source water in the heat source device system is held at a maximum water supply amount that is predetermined for the heat source device. The water supply amount of the heat source water in the heat exchanger system is adjusted so that the incoming temperature of the heat source water to the heat source device becomes a predetermined incoming water temperature. Air conditioning system.

Images