US20180283706A1

US20180283706A1 - Air conditioning system and air conditioning control method

Info

Publication number: US20180283706A1
Application number: US15/868,852
Authority: US
Inventors: Chia-Chuan Chen; Wei-Jhe Hong
Original assignee: Dynamic Technology Ltd Co
Current assignee: Dynamic Technology Ltd Co
Priority date: 2017-03-29
Filing date: 2018-01-11
Publication date: 2018-10-04
Also published as: CN108917126A

Abstract

An air conditioning system includes a main pipe, a first area pipe, a second area pipe, and a controller. The main pipe includes a storage tank, a water supply pipe, and a water return pipe connected in series. The main pipe is further connected with a variable-frequency pump in series. The first area pipe is further connected with a first electric valve and a first calorimeter in series. The first calorimeter detects and transmits first dynamic thermal information. The second area pipe is further connected with a second electric valve and a second calorimeter in series. The second calorimeter detects and transmits second dynamic thermal information. The controller receives the first dynamic thermal information and the second dynamic thermal information and correspondingly controls the variable-frequency pump to dynamically operate, or correspondingly controls the first electric valve and the second electric valve to dynamically adjust the flow rate.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This non-provisional application claims priority under 35 U.S.C. § 119(a) to Patent Application No. 201710196743.4 filed in China, P.R.C. on Mar. 29, 2017, the entire contents of which are hereby incorporated by reference.

BACKGROUND

Technical Field

The instant disclosure relates to an air conditioning system and air conditioning control method. The field of application of air conditioning includes cold air conditioning, warm air conditioning, and dehumidification conditioning.

Related Art

Along with vigorous developments of economics and technologies, many huge buildings (e.g., office buildings, residential buildings, department stores, or hypermarkets) are equipped with air conditioning system to adjust indoor temperature and provide comfortable environments for people.
Taking an air conditioning system as an example, cold water is produced by a chiller unit and distributed to air handling units at different floors or areas by pumps and pipes. Then, the indoor temperature can be adjusted via heat exchange. In order to reach a demanded flow rate, the chiller unit and pumps of the present air conditioning systems operates under a fixed power. However, there may be different demands of load according to different uses and usages (e.g., time of use, the number of air handling units, or the heights of floors). As a result, the air conditioning system wastes energy pointlessly.

SUMMARY

To address the above issue, an air conditioning system according to an embodiment is provided. The air conditioning system comprises a main pipe, a first area pipe, a second area pipe, and a controller. The main pipe comprises a storage tank, a water supply pipe, and a water return pipe connected with one another in series to form a loop. The storage tank comprises a water fluid with an operating temperature. The main pipe is further connected with a variable-frequency pump in series. The variable-frequency pump dynamically drives the water fluid to cyclically flow in the main pipe. The first area pipe is connected with the main pipe in parallel. The first area pipe comprises a first water supply branch pipe, at least one heat-exchange box, and a first water return branch pipe connected with one another in series to form a loop. The first area pipe is further connected with a first electric valve and a first calorimeter in series. The first electric valve controls a flow rate of the water fluid flowing through the first area pipe. The first calorimeter detects and transmits a first dynamic thermal information. The first dynamic thermal information is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the first area pipe. The second area pipe is connected with the main pipe in parallel. The second area pipe comprises a second water supply branch pipe, at least one heat exchanger, and a second water return branch pipe connected with one another in series to form a loop. The second area pipe is further connected with a second electric valve and a second calorimeter in series. The second electric valve controls a flow rate of the water fluid flowing through the second area pipe. The second calorimeter detects and transmits a second dynamic thermal information. The second dynamic thermal information is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the second area pipe. The controller is electrically connected with the first calorimeter, the second calorimeter, the variable-frequency pump, the first electric valve, and the second electric valve. The controller receives the first dynamic thermal information and the second dynamic thermal information and correspondingly controls the variable-frequency pump to dynamically operate, correspondingly controls the first electric valve and the second electric valve to dynamically adjust the flow rate, or correspondingly controls the variable-frequency pump to dynamically operate and the first electric valve and the second electric valve to dynamically adjust the flow rate.
According to an embodiment, an air conditioning control method is provided. The air conditioning control method comprises: receiving a first dynamic thermal information and a second dynamic thermal information by a controller, wherein the first dynamic thermal information is a heat-exchange amount of a water fluid in a first area pipe, and the second dynamic thermal information is a heat-exchange amount of a water fluid in a second area pipe; calculating a total water supply amount according to the first dynamic thermal information and the second dynamic thermal information; and controlling an operation of a variable-frequency pump to supply a main pipe with the total water supply amount, wherein the variable-frequency pump is connected with the main pipe in series, and the main pipe is connected with the first area pipe and the second area pipe in parallel.
According to an embodiment, an air conditioning control method is provided. The air conditioning control method comprises: receiving a first dynamic thermal information and a second dynamic thermal information by a controller, wherein the first dynamic thermal information is a heat-exchange amount of a water fluid in a first area pipe, and the second dynamic thermal information is a heat-exchange amount of a water fluid in a second area pipe; calculating a first water supply amount and a second water supply amount according to the first dynamic thermal information and the second dynamic thermal information; controlling an operation of a first electric valve to supply the first area pipe with the first water supply amount, wherein the first electric valve is connected with the first area pipe in series; and controlling an operation of a second electric valve to supply the second area pipe with the second water supply amount, wherein the second electric valve is connected with the second area pipe in series.
Concisely, according to embodiments of the air conditioning system and the air conditioning control method of the instant disclosure, real demands of flow rate of each area pipe can be determined immediately by continuously detecting dynamic thermal information (e.g., temperature information or heat-exchange amount) of water fluid in each area pipe, such that the variable-frequency pump can be controlled to dynamically operate, the first electric valve and the second electric valve can be controlled to dynamically adjust flow rate, or the variable-frequency pump, the first electric valve, and the second electric valve can be synchronously controlled to dynamically operate. As a result, energy consumption can be lowered and power can be saved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a system block diagram of an air conditioning system according to an embodiment of the instant disclosure;

FIG. 2 illustrates a system configuration diagram of an air conditioning system according to an embodiment of the instant disclosure;

FIG. 3 illustrates a system configuration diagram of an air conditioning system according to another embodiment of the instant disclosure;

FIG. 4 illustrates a system configuration diagram of an air conditioning system according to yet another embodiment of the instant disclosure;

FIG. 5 illustrates a system block diagram of an air conditioning system according to another embodiment of the instant disclosure;

FIG. 6 illustrates a flow chart of an air conditioning control method according to an embodiment of the instant disclosure;

FIG. 7 illustrates a flow chart of an air conditioning control method according to another embodiment of the instant disclosure; and

FIG. 8 illustrates a flow chart of an air conditioning control method according to yet another embodiment of the instant disclosure.

DETAILED DESCRIPTION

FIG. 1 illustrates a system block diagram of an air conditioning system according to an embodiment of the instant disclosure. As shown in FIG. 1, the air conditioning system 1 of the embodiment comprises a main pipe 10, multiple area pipes (e.g., there are two area pipes in the embodiment, respectively called first area pipe 20 and second area pipe 30), and a controller 40. In some embodiments, the air conditioning system 1 can be a cold air conditioning system or a warm air conditioning system for adjusting indoor temperature inside buildings (e.g., office buildings, residential buildings, department stores, or hypermarkets).
FIG. 2 illustrates a system block diagram of an air conditioning system according to an embodiment of the instant disclosure. As shown in FIG. 1 and FIG. 2, the air conditioning system 1 of the embodiment is a cold air conditioning system and can be applied for a multi-story building. The main pipe 10 of the air conditioning system 1 comprises a storage tank 11, a water supply pipe 12, and a water return pipe 13 connected with one another in series to form a loop. The storage tank 11 can be a chilled water tank 111 of a water chiller unit 2. In some embodiments, the water chiller unit 2 may comprise a compressor, e.g., a centrifugal compressor, a scroll compressor, a screw compressor, or a reciprocating compressor. The water chiller unit 2 can make water which returns from the water return pipe 13 cooled down to form a water fluid F (cold water) with predetermined operating temperature (5° C., 7° C., or 8° C.) stored in the storage tank 11.
In addition, the water supply pipe 12 and the water return pipe 13 of the main pipe 10 may extend to each of the floors. The main pipe 10 is further connected with a variable-frequency pump 14 in series to dynamically drive the water fluid F to cyclically flow in the main pipe 10. For example, the variable-frequency pump 14 can operate under different operating frequencies (e.g., the variable-frequency pump 14 can operate under operating frequencies between 30 Hz and 60 Hz) and dynamically controls and drives flow rate of the water fluid F in the main pipe 10. For example, the flow rate of the main pipe 10 while the variable-frequency pump 14 operates under 60 Hz is greater than that of the main pipe 10 while the variable-frequency pump 14 operates under 30 Hz.
As shown in FIG. 1 and FIG. 2, multiple area pipes of the air conditioning system 1 are disposed on different floors with different heights. In the embodiment, the storage tank 11 is disposed at a basement. The first area pipe 20 is disposed on first floor, and the second area pipe 30 is disposed on second floor. The first area pipe 20 is connected with the main pipe 10 in parallel and comprises a first water supply branch pipe 21, at least one heat-exchange box 22 (e.g., there are two heat-exchange boxes 22 in the embodiment), and a first water return branch pipe 23 connected with one another in series to form a loop. In an embodiment, the heat-exchange box 22 can be a chilled air bellow 221, the first water supply branch pipe 21 is connected with the water supply pipe 12 of the main pipe 10, the first water return branch pipe 23 is connected with the water return pipe 13 of the main pipe 10, and the two heat-exchange boxes 22 can be connected between the first water supply branch pipe 21 and the first water return branch pipe 23 in series or in parallel. Thereby the water fluid F (cold water) in the storage tank 11 can flow to the two heat-exchange boxes 22 through the water supply pipe 12 and the first water supply branch pipe 21 and form a water fluid F1 with higher temperature (e.g., 11° C., 12° C., or 13° C.) after the water fluid F is heat exchanged in the heat-exchange box 22. The water fluid F1 flows to the water chiller unit 2 through the first water return branch pipe 23 and the water return pipe 13 to be cooled down. In some embodiments, the temperature of the water fluid F1 dynamically varies according to a thermal loading amount of the first area pipe 20. For example, the greater the load of the heat-exchange box 22 is, the higher the temperature of the water fluid F1 would be; alternatively, the more the heat-exchange boxes 22 are used, the higher the temperature of the water fluid F1 would be.
In an embodiment, the first area pipe 20 is further connected with a first electric valve 24 and a first calorimeter 25 in series. As shown in FIG. 2, the first electric valve 24 of the embodiment is connected between the water supply pipe 12 and the first water supply branch pipe 21 to control a flow rate of the water fluid F which flows through the first area pipe 20. For example, the greater the amplitude of an opening of the first electric valve 24 is, the greater the flow rate of the fluid flowing through the first area pipe 20 would be. The first calorimeter 25 can detect and transmit a first dynamic thermal information D1. The first dynamic thermal information D1 is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the first area pipe 20. For example, the first calorimeter 25 can be a thermometer for detecting the temperature information of the water fluid in the first area pipe 20 (e.g., the temperature of the water fluid F of the first water supply branch pipe 21 and the temperature of the water fluid F1 of the first water return branch pipe 23); alternatively, the first calorimeter 25 can be a thermal detector (e.g., a BTU meter) for detecting the heat-exchange amount of the water fluid in the first area pipe 20.
In an embodiment, the first calorimeter 25 may comprise at least one thermometer, a flowmeter, or a combination of the thermometer and the flowmeter. As shown in FIG. 2, the first calorimeter 25 of the embodiment comprises a water supply thermometer 251, a water return thermometer 252, and a flowmeter 253. The water supply thermometer 251 and the flowmeter 253 are disposed on the first water supply branch pipe 21 for detecting the temperature (e.g., 6° C., 7° C., or 8° C.) and the flow rate (e.g., 100 LPM, 200 LPM, or 300 LPM) of the water fluid F in the first water supply branch pipe 21. The water return thermometer 252 is disposed on the first water return branch pipe 23 for detecting the temperature (e.g., 10° C., 12° C., or 14° C.) of the water fluid F1 in the first water return branch pipe 23. The first calorimeter 25 may further comprise a microprocessor 254. The microprocessor 254 can calculate the heat-exchange amount of the first area pipe 20 (e.g., 1 BTU, 2 BTU, or 5 BTU) according to the product of the difference in temperature between the water fluid F and the water fluid F1 and the flow rate in the first water supply branch pipe 21.
As shown in FIG. 2, the second area pipe 30 is connected with the main pipe 10 and the first area pipe 20 in parallel. The second area pipe 30 comprises a second water supply branch pipe 31, at least one heat exchanger 32 (e.g., there are two heat exchangers 32 in the embodiment), and a second water return branch pipe 33 connected with one another in series to form a loop. In an embodiment, the heat exchanger 32 may be a cold are box 321. The second water supply branch pipe 31 is connected with the water supply pipe 12 of the main pipe 10. The second water return branch pipe 33 is connected with the water return pipe 13 of the main pipe 10. The two heat exchangers 32 can be connected between the second water supply branch pipe 31 and the second water return branch pipe 33 in series or in parallel. Thereby the water fluid F (cold water) in the storage tank 11 can flow to the two heat exchangers 32 through the water supply pipe 12 and the second water supply branch pipe 31 and form a water fluid F2 with higher temperature (e.g., 11° C., 12° C., or 13° C.) after the water fluid F is heat exchanged in the heat exchangers 32. The water fluid F2 flows to the water chiller unit 2 through the second water return branch pipe 33 and the water return pipe 13 to be cooled down. In some embodiments, the temperature of the water fluid F2 dynamically varies according to a thermal loading amount of the second area pipe 30. For example, the greater the load of the heat exchanger 32 is, the higher the temperature of the water fluid F2 would be; alternatively, the more the heat exchangers 32 are used, the higher the temperature of the water fluid F2 would be.
In some embodiments, the second area pipe 30 is further connected with a second electric valve 34 and a second calorimeter 35 in series. As shown in FIG. 2, the second electric valve 34 of the embodiment is connected between the water supply pipe 12 and the second water supply branch pipe 31 to control a flow rate of the water fluid F which flows through the second area pipe 30. For example, the greater the amplitude of an opening of the second electric valve 34 is, the greater the flow rate of the fluid flowing through the second area pipe 30 is. The second calorimeter 35 can detect and transmit a second dynamic thermal information D2. The second dynamic thermal information D2 is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the second area pipe 30. For example, the second calorimeter 35 can be a thermometer for detecting the temperature information of the water fluid in the second area pipe 30 (e.g., the temperature of the water fluid F in the second water supply branch pipe 31 and the temperature of the water fluid F2 in the second water return branch pipe 33); alternatively, the second calorimeter 35 can be a thermal detector (e.g., a BTU meter) for detecting the heat-exchange amount of the water fluid in the second area pipe 30.
In an embodiment, the second calorimeter 35 may comprise at least one thermometer, a flowmeter, or a combination of the thermometer and the flowmeter. As shown in FIG. 2, the second calorimeter 35 of the embodiment comprises a water supply thermometer 351, a water return thermometer 352, and a flowmeter 353. The water supply thermometer 351 and the flowmeter 353 are disposed on the second water supply branch pipe 31 for detecting the temperature (e.g., 6° C., 7° C., or 8° C.) and the flow rate (e.g., 100 LPM, 200 LPM, or 300 LPM) of the water fluid F in the second water supply branch pipe 31. The water return thermometer 352 is disposed on the second water return branch pipe 33 for detecting the temperature (e.g., 10° C., 12° C., or 14° C.) of the water fluid F2 in the second water return branch pipe 33. The second calorimeter 35 may further comprise a microprocessor 354. The microprocessor 354 can calculate the heat-exchange amount of the second area pipe 30 (e.g., 1 BTU, 2 BTU, or 5 BTU) according to the product of the difference in temperature between the water fluid F and the water fluid F2 and the flow rate in the second water supply branch pipe 31.
The controller 40 may be a microprocessor, a microcontroller, a digital signal processor, a microcomputer, a central process unit, a field programmable gate array, or a logic circuit. The controller 40 is electrically connected with the first calorimeter 25, the second calorimeter 35, the variable-frequency pump 14, the first electric valve 24, and the second electric valve 34.
FIG. 6 illustrates a flow chart of an air conditioning control method according to an embodiment of the instant disclosure. As shown in FIG. 6, the controller 40 can receive the first dynamic thermal information D1 outputted by the first calorimeter 25 and the second dynamic thermal information D2 outputted by the second calorimeter 35 (step S01) and calculate a total water supply amount, a first water supply amount, and a second water supply amount according to the first dynamic thermal information D1 and the second dynamic thermal information D2 (step S02). Further, the controller 40 can control the operation of the first electric valve 24 to supply the first area pipe 20 with the first water supply amount (step S03), control the operation of the second electric valve 34 to supply the second area pipe 30 with the second water supply amount (step S04), and control the operation of the variable-frequency pump 14 to supply the main pipe 10 with the total water supply amount (step S05). The following is an example. Please refer to FIG. 2 and Table 1 as below.
TABLE 1

The number of Heat-

exchange box/

Floor Heat exchanger Percentage Flow rate

1F

2 40% 200 LPM

2F

3 60% 300 LPM

Total 5 100% 500 LPM

In a case of a two-story building, a demanded flow rate is 200 LPM while the two heat-exchange boxes 22 of the first area pipe 20 at first floor are turned on, and a demanded flow rate is 300 LPM while the three heat exchangers 32 of the second area pipe 30 at second floor are turned on. In the meantime, the variable-frequency pump 14 operates under an operating frequency (e.g., 50 Hz) such that the total flow rate of the water fluid F (cold water) outputted by the water supply pipe 12 is 500 LPM to satisfy the demand of the flow rates of the first area pipe 20 and the second area pipe 30.
As shown in FIG. 2, while the business hours of the first floor are over and the two heat-exchange boxes 22 are turned off, the temperature of the water fluid F1 (i.e., the first dynamic thermal information D1) detected by the first calorimeter 25 lowers. On the other hand, the heat-exchange amount of the water fluid (i.e., the first dynamic thermal information D1) in the first area pipe 20 also lowers, which means that the amount of the cold water of the first area pipe 20 in demand lowers. The controller 40 calculates a first water supply amount (e.g., 100 LPM) that the first area pipe 20 demands at present according to the temperature information or the heat-exchange amount, and correspondingly controls the first electric valve 24 to decrease the amplitude of the opening thereof, such that the flow rate flowing to the first area pipe 20 lowers from 200 LPM to 100 LPM. Meanwhile, the total flow rate in the water return pipe 13 lowers synchronously (e.g., lowering to 400 LPM). The control 40 can further lower the operating frequency of the variable-frequency pump 14 (e.g., lowering from 50 Hz to 40 Hz) in response to the variation of the first dynamic thermal information D1 so as to lower the total flow rate of the water fluid F outputted by the water supply pipe 12 from 500 LPM to 400 LPM.
In another case, as shown in FIG. 3, the temperature of the water fluid F2 (i.e., the second dynamic thermal information D2) detected by the heat exchanger 32 would rise while the second area pipe 30 at the second floor is added with another one heat exchanger 32. On the other hand, the heat-exchange amount of the water fluid (i.e., the second dynamic thermal information D2) in the second area pipe 30 also rises, which means that the amount of the cold water of the second area pipe 30 in demand rises. The controller 40 calculates a second water supply amount (e.g., 400 LPM) that the second area pipe 30 demands at present according to the temperature information or the heat-exchange amount, and thereby the control 40 can control the second electric valve 34 to increase the amplitude of the opening thereof, such that the flow rate flowing to the second area pipe 30 rises from 300 LPM to 400 LPM. Meanwhile, the total flow rate in the water return pipe 13 rises synchronously (e.g., rising to 600 LPM). The control 40 can further raise the operating frequency of the variable-frequency pump 14 (e.g., rising from 50 Hz to 60 Hz) in response to the variation of the second dynamic thermal information D2 so as to raise the total flow rate of the water fluid F outputted by the water supply pipe 12 from 500 LPM to 600 LPM.
Concisely, according to embodiments of the instant disclosure, the amplitudes of the openings of the first electric valve 24 and the second electric valve 34 and the operating frequency of the variable-frequency pump 14 can be adjusted immediately according to dynamic variations of the first dynamic thermal information D1 and the second dynamic thermal information D2, so that the consumed power of the variable-frequency pump 14 and the lift of pump can be effectively lowered. Further, flow rate in an unused area can be lowered, and consumption of bending pipes, valve components, and joint heads can be also lowered. The result of power saving can be reached. In addition, along with the lowering of the consumed power of the variable-frequency pump 14, the loading amount of the water chiller unit 2 can also be lowered so as to reduce the consumption rate.
In some embodiments, the controller 40 can comprise multiple control units (e.g., a first control unit, a second control unit, and a general control unit). The first control unit may be connected with the first electric valve 24 to control the amplitude of the opening of the first electric valve 24 according to the variation of the first dynamic thermal information D1. The second control unit may be connected with the second electric valve 34 to control the amplitude of the opening of the second electric valve 34 according to the variation of the second dynamic thermal information D2. The general control unit may be connected with the variable-frequency pump 14 to control the operating frequency of the variable-frequency pump 14 according to the variation(s) of the first dynamic thermal information D1 and/or the second dynamic thermal information D2.
In an embodiment, as shown in FIG. 2 and FIG. 5, the main pipe 10 can further comprise a general calorimeter 15. The general calorimeter 15 detects and transmits a total dynamic thermal information Dt. The total dynamic thermal information Dt is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the main pipe 10. The total dynamic thermal information Dt relates to the first dynamic thermal information D1 and the second dynamic thermal information D2. For example, the total dynamic thermal information Dt synchronously varies along with the variation(s) of the first dynamic thermal information D1, the second dynamic thermal information D2, or the combination of thereof. For example, the total dynamic thermal information Dt is a heat-exchange amount of the main pipe while the first dynamic thermal information D1 and the second dynamic thermal information D2 are respectively heat-exchange amounts of the first area pipe 20 and the second area pipe 30. While the first dynamic thermal information D1 or the second dynamic thermal information D2 lowers, the total dynamic thermal information Dt lowers correspondingly. The controller 40 can dynamically adjust the operating frequency of the variable-frequency pump 14 directly according to the variation of the total dynamic thermal information Dt. For example, while the total dynamic thermal information Dt lowers, the controller 40 correspondingly lower the operating frequency of the variable-frequency pump 14 to reach a result of power saving.
In an embodiment, as shown in FIG. 2, the general calorimeter 15 may comprise a general water supply thermometer 151, a general water return thermometer 152, and a general flowmeter 153. The general water supply thermometer 151 and the general flowmeter 153 are disposed on the water supply pipe 12 to respectively detect the temperature information and the flow rate of the water fluid in the water supply pipe 12. The general water return thermometer 152 is disposed on the water return pipe 13 to detect the temperature of the water fluid in the water return pipe 13. In an embodiment, the general flowmeter 153 may further comprise a microprocessor 154. The microprocessor 154 can calculate the heat-exchange amount of the main pipe 10 according to the product of the difference in temperature between the water fluid in the water supply pipe 12 and the water fluid in the water return pipe 13 and the flow rate of the water fluid in the water supply pipe 12.
In an embodiment, the first area pipe 20 and the second area pipe 30 may be respectively disposed on different areas with different distances from the variable-frequency pump 14. In a case, as shown in FIG. 4, the first area pipe 20, the second area pipe 30, and the variable-frequency pump 14 may be disposed on the same floor, and the first area pipe 20 is closer to the variable-frequency pump 14 than the second area pipe 30 is.
In an embodiment, as shown in FIG. 4, the air conditioning system 1 can be a warm air conditioning system. The storage tank 11 can be a hot water tank 112 of a water heater unit 3. The heat-exchange box 22 installed on the first area pipe 20 and the heat exchanger 32 installed on the second area pipe 30 can be heated air bellows 222, 322. The water fluid (warm water) in the storage tank 11 flows to the two heat-exchange boxes 22 through the water supply pipe 12 and the first water supply branch pipe 21 and forms a water fluid with lower temperature after the water fluid is heat exchanged in the heat-exchange box 22. Further, the water fluid flows to the water heater unit 3 through the first water return branch pipe 23 and the water return pipe 13 to be heated. Analogously, the water fluid (warm water) in the storage tank 11 also flows to the two heat exchangers 32 through the water supply pipe 12 and the second water supply branch pipe 31 and forms a water fluid with lower temperature after the water fluid is heat exchanged in the heat exchanger 32. Further, the water fluid flows to the water heater unit 3 through the second water return branch pipe 33 and the water return pipe 13 to be heated.
FIG. 7 illustrates a flow chart of an air conditioning control method according to another embodiment of the instant disclosure. As shown in FIG. 7, in an embodiment, after the controller 40 receives the first dynamic thermal information D1 outputted by the first calorimeter 25 and the second dynamic thermal information D2 outputted by the second calorimeter 35 (step S01), the controller 40 calculates a total water supply amount according to the first dynamic thermal information D1 and the second dynamic thermal information D2 (step S021). Further, the controller 40 controls the operation of the variable-frequency pump 14 to supply the main pipe 10 with the total water supply amount (step S05).
FIG. 8 illustrates a flow chart of an air conditioning control method according to yet another embodiment of the instant disclosure. As shown in FIG. 8, in an embodiment, after the controller 40 receives the first dynamic thermal information D1 outputted by the first calorimeter 25 and the second dynamic thermal information D2 outputted by the second calorimeter 35 (step S01), the controller 40 calculates the first water supply amount and the second water supply amount merely according to the first dynamic thermal information D1 and the second dynamic thermal information D2 (step S022). Further, the controller 40 controls the operation of the first electric valve 24 to supply the first area pipe 20 with the first water supply amount (step S03) and controls the operation of the second electric valve 34 to supply the second area pipe 30 with the second water supply amount (step S04).
While the instant disclosure has been described by way of example and in terms of the preferred embodiments, it is to be understood that the instant disclosure needs not be limited to the disclosed embodiments. For anyone skilled in the art, various modifications and improvements within the spirit of the instant disclosure are covered under the scope of the instant disclosure. The covered scope of the instant disclosure is based on the appended claims.

Claims

What is claimed is:

1. An air conditioning system, comprising:

a main pipe comprising a storage tank, a water supply pipe, and a water return pipe connected with one another in series to form a loop, the storage tank comprising a water fluid with an operating temperature, the main pipe further being connected with a variable-frequency pump in series, the variable-frequency pump dynamically driving the water fluid to cyclically flow in the main pipe;

a first area pipe connected with the main pipe in parallel, the first area pipe comprising a first water supply branch pipe, at least one heat-exchange box, and a first water return branch pipe connected with one another in series to form a loop, the first area pipe further being connected with a first electric valve and a first calorimeter in series, the first electric valve controlling a flow rate of the water fluid flowing through the first area pipe, the first calorimeter detecting and transmitting a first dynamic thermal information, wherein the first dynamic thermal information is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the first area pipe;

a second area pipe connected with the main pipe in parallel, the second area pipe comprising a second water supply branch pipe, at least one heat exchanger, and a second water return branch pipe connected with one another in series to form a loop, the second area pipe further being connected with a second electric valve and a second calorimeter in series, the second electric valve controlling a flow rate of the water fluid flowing through the second area pipe, the second calorimeter detecting and transmitting a second dynamic thermal information, wherein the second dynamic thermal information is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the second area pipe; and

a controller electrically connected with the first calorimeter, the second calorimeter, the variable-frequency pump, the first electric valve, and the second electric valve, the controller receiving the first dynamic thermal information and the second dynamic thermal information and correspondingly controlling the variable-frequency pump to dynamically operate, correspondingly controlling the first electric valve and the second electric valve to dynamically adjust the flow rate, or correspondingly controlling the variable-frequency pump to dynamically operate and the first electric valve and the second electric valve to dynamically adjust the flow rate.

2. The air conditioning system of claim 1, wherein the storage tank is a chilled water tank of a water chiller unit, and the heat-exchange box and the heat exchanger are chilled air bellows.

3. The air conditioning system of claim 1, wherein the storage tank is a heated water tank of a water heater unit, and the heat-exchange box and the heat exchanger are heated air bellows.

4. The air conditioning system of claim 1, wherein the first area pipe and the second area pipe are respectively disposed on different floors with different heights or disposed on different areas with different distances from the variable-frequency pump.

5. The air conditioning system of claim 1, wherein the first calorimeter and the second calorimeter are respectively comprise at least one thermometer, a flowmeter, or a combination of the thermometer and the flowmeter.

6. The air conditioning system of claim 1, wherein the first electric valve is connected between the water supply pipe and the first water supply branch pipe, the first calorimeter comprises a water supply thermometer, a water return thermometer, and a flowmeter, the water supply thermometer and the flowmeter are disposed on the first water supply branch pipe, and the water return thermometer is disposed on the first water return branch pipe.

7. The air conditioning system of claim 1, wherein the at least one heat-exchange box of the first area pipe comprises a plurality of the heat-exchange boxes, and the heat-exchange boxes are connected in series or in parallel.

8. The air conditioning system of claim 1, wherein the main pipe further comprises a general calorimeter, the general calorimeter detects and transmits a total dynamic thermal information, the total dynamic thermal information is a temperature information, a heat-exchange amount, or a combination of the temperature information and the heat-exchange amount of the water fluid in the main pipe, the total dynamic thermal information relates to the first dynamic thermal information and the second dynamic thermal information, and the controller controls the variable-frequency pump according to the total dynamic thermal information to dynamically operate.

9. The air conditioning system of claim 8, wherein the general calorimeter comprises a general water supply thermometer, a general water return thermometer, and a general flowmeter, the general water supply thermometer and the general flowmeter are disposed on the water supply pipe, and the general water return thermometer is disposed on the water return pipe.

10. An air conditioning control method, comprising:

receiving a first dynamic thermal information and a second dynamic thermal information by a controller, wherein the first dynamic thermal information is a heat-exchange amount of a water fluid in a first area pipe, and the second dynamic thermal information is a heat-exchange amount of a water fluid in a second area pipe;

calculating a total water supply amount according to the first dynamic thermal information and the second dynamic thermal information; and

controlling an operation of a variable-frequency pump to supply a main pipe with the total water supply amount, wherein the variable-frequency pump is connected with the main pipe in series, and the main pipe is connected with the first area pipe and the second area pipe in parallel.

11. The air conditioning control method of claim 10, further comprising:

calculating a first water supply amount and a second water supply amount according to the first dynamic thermal information and the second dynamic thermal information;

controlling an operation of a first electric valve to supply the first area pipe with the first water supply amount, wherein the first electric valve is connected with the first area pipe in series; and

controlling an operation of a second electric valve to supply the second area pipe with the second water supply amount, wherein the second electric valve is connected with the second area pipe in series.

12. The air conditioning control method of claim 10, wherein the main pipe comprises a storage tank, the storage tank comprises a water fluid with an operating temperature, and the variable-frequency pump supplies the main pipe with the total water supply amount by the storage tank.

13. The air conditioning control method of claim 12, wherein the storage tank is a chilled water tank of a water chiller unit.

14. The air conditioning control method of claim 12, wherein the storage tank is a heated water tank of a water heater unit.

15. The air conditioning control method of claim 12, wherein the first dynamic thermal information is provided by a first calorimeter, the first calorimeter is connected with the first area pipe in series, the second dynamic thermal information is provided by a second calorimeter, and the second calorimeter is connected with the second area pipe in series.

16. An air conditioning control method, comprising:

17. The air conditioning control method of claim 16, wherein the first area pipe and the second area pipe are connected with a variable-frequency pump, the variable-frequency pump supplies the first area pipe with the first water supply amount and supplies the second area pipe with the second water supply amount by a storage tank.

18. The air conditioning control method of claim 17, wherein the storage tank is a chilled water tank of a water chiller unit.

19. The air conditioning control method of claim 17, wherein the storage tank is a heated water tank of a water heater unit.

20. The air conditioning control method of claim 17, wherein the first dynamic thermal information is provided by a first calorimeter, the first calorimeter is connected with the first area pipe in series, the second dynamic thermal information is provided by a second calorimeter, and the second calorimeter is connected with the second area pipe in series.