CN114754479A - Energy-saving control system of central air conditioner - Google Patents
Energy-saving control system of central air conditioner Download PDFInfo
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- CN114754479A CN114754479A CN202210484257.3A CN202210484257A CN114754479A CN 114754479 A CN114754479 A CN 114754479A CN 202210484257 A CN202210484257 A CN 202210484257A CN 114754479 A CN114754479 A CN 114754479A
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- controller
- temperature
- tail end
- air conditioner
- water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an energy-saving control system of a central air conditioner, which comprises an air conditioner tail end, a tail end water supply and return communicating pipeline, a temperature and humidity sensor, an electric regulating valve, a controller (I), a water return pump, a flow sensor, a controller (II) and a refrigerating unit. The temperature and humidity sensor is electrically connected with the controller (I), the controller (I) is electrically connected with the electric regulating valve, the flow sensor is electrically connected with the controller (II), and the controller (II) is electrically connected with the refrigerating unit. The energy-saving control system aims to solve the problems of excessive dehumidification, large indoor temperature change amplitude and high energy consumption of the central air conditioner and provide the energy-saving control system of the central air conditioner. The system can reuse the heat of the return water at the tail end of the air conditioner, adjust the temperature of the water supplied at the tail end, control the dehumidification degree, provide a new mode for adjusting the indoor temperature, adjust the power of the refrigerating unit according to the flow of the main water return pipe, and realize the energy-saving optimization of the central air conditioner.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to an energy-saving control system of a central air conditioner.
Background
The temperature of the water supplied to the tail end of the central air conditioner in the refrigerating process is always fixed to be 7 ℃, and the temperature is lower than the dew point temperature of air in a room under the ordinary condition, so that when the central air conditioner performs refrigerating work, the indoor humidity is continuously reduced, the sensible temperature is lower than the actual environment temperature, and the comfort is poor. Although the central air conditioner is often used in combination with an independent fresh air system to solve the problem, the independent fresh air system is often installed and not used at present.
The tail end of the central air conditioner mainly meets the temperature requirements of different rooms by adjusting the air supply quantity of the tail end of the air conditioner in the refrigeration process, and the problem of large indoor temperature change range exists in the mode.
The central air-conditioning refrigerating unit has high energy consumption and large carbon discharge amount, and realizes more energy conservation and becomes the center of the development of the air-conditioning industry based on the double pressure of 'carbon peak and carbon neutralization' and 'green high-efficiency refrigeration action scheme'.
Disclosure of Invention
Aiming at the problems generated in the refrigerating process of the central air conditioner, the invention aims to solve the problems of excessive dehumidification, large indoor temperature change range and high energy consumption of the central air conditioner and provides an energy-saving control system of the central air conditioner. The system can reuse the heat of the return water at the tail end of the air conditioner, adjust the water supply temperature at the tail end, control the dehumidification degree, provide a new mode for adjusting the indoor temperature, adjust the power of the refrigerating unit according to the flow of the main water return pipe, and realize the energy-saving optimization of the central air conditioner.
The technical scheme adopted by the invention is as follows: an energy-saving control system of a central air conditioner is characterized by comprising an air conditioner tail end, a tail end water supply and return communicating pipeline, a temperature and humidity sensor, an electric regulating valve, a controller (I), a water return pump, a flow sensor, a controller (II) and a refrigerating unit, wherein the temperature and humidity sensor is used for detecting indoor relative humidity and water supply temperature at the tail end of the air conditioner, and a feedback instruction sends a feedback instruction to the controller (I); the controller (I) is used for receiving a feedback instruction sent by the temperature sensor and controlling the opening of the electric regulating valve; the electric regulating valve is used for controlling the flow of the tail end water supply and return communication pipeline; the flow sensor is positioned between the water return pump and the refrigerating unit and used for detecting the flow of the main water return pipeline and sending a feedback instruction to the controller (II); and the controller (II) is used for receiving a feedback instruction sent by the flow sensor and controlling the operating power of the refrigerating unit. Wherein, the temperature and humidity sensor is electrically connected with the controller (I); the controller (I) is electrically connected with the electric regulating valve; the flow sensor is electrically connected with the controller (II); the controller (II) is electrically connected with the refrigerating unit. The tail end water supply and return communication pipeline, the temperature and humidity sensor, the electric regulating valve and the controller (I) are used for carrying out energy-saving control on the tail end of the air conditioner, firstly, the temperature and humidity sensor detects indoor relative humidity, whether the indoor relative humidity meets the set requirement is judged, if the indoor relative humidity is not within the set indoor relative humidity range, a feedback instruction sent to the controller (I) is to regulate the electric regulating valve to be in a closed state, namely, the opening degree is 0; if the temperature of the tail end of the air conditioner is within the set indoor relative humidity range, judging the detected water supply temperature of the tail end of the air conditioner, if the temperature of the tail end of the air conditioner is higher than the set tail end water supply temperature, sending a feedback instruction to a controller (I) to reduce the opening of an electric regulating valve, and reducing the flow rate of the tail end water return pipeline flowing into a tail end water supply pipeline through a tail end water supply and return communication pipeline to reduce the tail end water supply temperature; if the temperature is lower than the set terminal water supply temperature, a feedback instruction sent to the controller I is to increase the opening of the electric regulating valve, the flow rate of water flowing into the terminal water supply pipeline through the terminal water supply and return communication pipeline in the terminal water return pipeline is increased, the terminal water supply temperature is increased, and therefore the terminal water supply temperature of the air conditioner is achieved. The flow sensor and the controller (II) are used for carrying out energy-saving control on the air conditioner refrigerating unit, return water at each tail end is gathered into the main water return pipeline through the tail end water return pipeline, and if the flow of the main water return pipeline detected by the flow sensor is higher than the set flow of the main water return pipeline, a feedback instruction is sent to the controller (II) to adjust the refrigerating unit to operate at relatively high power; if the flow rate of the main water return pipeline is lower than the set flow rate of the main water return pipeline, a feedback instruction is sent to the controller (II) to adjust the relatively low-power operation of the refrigerating unit, so that the problem of high energy consumption is solved.
The invention has the advantages that:
1. the temperature of the water supply at the tail end of the air conditioner can be adjusted, a new way is created for the central air conditioning system to adjust the indoor temperature, and the problem that the central air conditioning system controls the indoor temperature to be unstable is solved;
2. the temperature of the water supplied at the tail end is controlled through the detected indoor relative humidity, so that the problem of excessive dehumidification of a central air-conditioning system is avoided;
3. the heat of the return water is recycled, and the working power of the refrigerating unit is adjusted through the flow of the main water return pipeline, so that the problem of high energy consumption of the conventional central air conditioner is optimized, and the carbon emission is reduced;
4. the optimized modification procedure of the central air-conditioning system is simple and easy, has a simple structure, is convenient for maintaining and replacing parts, does not have fragile parts, and has low failure rate and long service life.
Drawings
FIG. 1 is a schematic view of a water supply and return pipeline at the tail end of an air conditioner of the energy-saving control system of the present invention;
FIG. 2 is a logic diagram of the operation of the water supply and return pipeline at the tail end of the air conditioner of the energy-saving control system of the invention;
FIG. 3 is a schematic diagram of an energy-saving control system of a central air conditioner according to the present invention;
FIG. 4 is a logic diagram for power conditioning operation of the refrigeration unit of the economizer control system of the present invention;
in the figure, 01, an air conditioner end, 02, an end water supply and return communication pipeline, 03, a temperature and humidity sensor, 04, an electric regulating valve, 05, a controller (I), 06, a return water pump, 07, a flow sensor, 08, a controller (II), 09, a refrigerating unit, 10.A, 11.B, 12.C and 13.D are arranged.
Detailed Description
The present invention is described in detail with reference to specific embodiments, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention.
Referring to the drawings, the structures, the proportions, the sizes, and the like shown in the drawings are only used for matching the disclosure of the present invention, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention has no technical significance, and any structural modification, proportion relationship change, or size adjustment shall still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the positional limitation terms used in the present specification are for clarity of description, and are not intended to limit the implementable scope of the present invention, and the changes or adjustments of the relative relationship thereof may be regarded as the implementable scope of the present invention without substantial technical changes.
Fig. 1 is a schematic structural view of a water supply and return pipeline at the tail end of an air conditioner of an energy-saving control system, as shown in fig. 1, a temperature and humidity sensor 03 is electrically connected with a controller (i) 05 of the water supply and return pipeline at the tail end of the air conditioner of the energy-saving control system, and the controller (i) 05 is electrically connected with an electric regulating valve 04. The tail end water supply and return communication pipeline 02 communicates the tail end water return pipeline with the tail end water supply pipeline, and the electric regulating valve 04 controls the fluid circulation condition in the tail end water supply and return communication pipeline 02. The temperature and humidity sensor 03 is used for detecting indoor relative humidity RH 1And the temperature T of water supply in the end water supply pipeline1And sends a feedback instruction to the controller (I) 05; the controller (i) 05 receives the feedback instruction, and controls the electric control valve 04 to adjust the opening α thereof. The specific working process is shown in fig. 2.
FIG. 2 is a logic diagram of the operation of the air conditioner tail end water supply and return pipeline of the energy-saving control system, as shown in FIG. 2, a temperature and humidity sensor 03 detects the relative humidity RH in a room1= a and supply water temperature T in the end supply pipe1= d, first, it is judged whether or not the relative humidity a in the room reaches the set relative humidity range RH0= (b-c), if RH1Not at RH0If so, the temperature and humidity sensor 03 sends a closing instruction to the controller (I) 05, and the controller (I) 05 controls the electric regulating valve 04 to be in a closed state after receiving the closing instruction; if RH1At RH0The temperature and humidity sensor 03 then measures the temperature T of the water supplied from the end water supply pipeline1= d judges its placeIn the temperature range of (f) if T1Above a set water supply temperature T0If = e, the temperature and humidity sensor 03 sends an instruction for adjusting the opening α = f of the electric control valve 04 to the controller (one) 05, and after receiving the instruction, the controller (one) 05 controls the electric control valve 04 to make the opening f; if T 1Below T0The temperature/humidity sensor 03 sends an instruction to the controller (i) 05 to adjust the opening α = g of the electric control valve 04, and the controller (i) 05 receives the instruction to control the electric control valve 04 to have the opening g. The above steps are repeated and circulated according to the above processes to complete one-time work, and the water supply temperature is adjustable and stabilized at a certain value.
Fig. 3 is a schematic structural diagram of an energy saving control system of a central air conditioner, and as shown in fig. 3, a flow sensor 07 is electrically connected to a controller (ii) 08, and the controller (ii) 08 is electrically connected to a refrigerating unit 09. The return water at the tail ends of the air conditioners in the room A10, the room B11, the room C12 and the room D13 is converged into a main return water pipeline through each tail end return water pipeline, and the flow sensor 07 is used for detecting the flow Q of the main return water pipeline and sending a feedback instruction to the controller (II) 08; the controller (II) 08 receives the feedback instruction and controls the refrigerating unit 09 to adjust the working power P thereof. The specific working process is shown in fig. 4.
FIG. 4 is a logic diagram illustrating the operation of the power conditioning system of the refrigeration unit of the economizer control system, as shown in FIG. 4, with the flow sensor 07 detecting the return water flow Q of the main water return line1And according to the set flow rate Q0Judging the flow range of the flow, if Q 1Greater than Q0If so, the flow sensor 07 sends a command for controlling the working power P = h of the refrigeration unit 09 to the controller (ii) 08, and after receiving the command, the controller (ii) 08 controls the refrigeration unit 09 to make the working power P = h; if Q1Less than Q0The flow sensor 07 gives a command to the controller (ii) 08 to control the operating power P = i of the refrigeration unit 09, and the controller (ii) 08 controls the refrigeration unit 09 to set the operating power P = i after receiving the command. In order to complete one-time work, the process is repeatedly circulated.
The following effects on the energy saving control system of the central air conditioner according to the present invention are described with reference to fig. 1 to 4The mechanism is illustrated as follows: the fluid flows through the tail end water supply pipeline, and the temperature and humidity sensor 03 detects the indoor relative humidity RH at the moment1= a and supply water temperature T of air conditioner end1= d, first, determine whether it reaches the set RH according to the indoor relative humidity a0= (b-c), if RH1Not at RH0If so, the electric regulating valve is in a closed state; if RH1At RH0According to the set water supply temperature T0= e to T1And (6) judging. If T1Greater than T0If so, the temperature and humidity sensor 03 sends an instruction for adjusting the opening α = f of the electric regulating valve 04 to the controller (i) 05, and controls the electric regulating valve 04 to make the opening f; if T 1Lower than T0Then, the temperature and humidity sensor 03 sends an instruction of adjusting the opening α = g of the electric control valve 04 to the controller (i) 05, and controls the electric control valve 04 to make the opening g, thereby controlling the end water supply temperature. Backwater at each tail end is converged into the main pipeline through a tail end backwater pipeline, and the flow sensor 07 detects the backwater flow Q of the main backwater pipeline1According to the set flow rate Q0Judging the flow range of the flow, if Q1Greater than Q0If so, the flow sensor 07 sends an instruction for controlling the working power P = h of the refrigeration unit 09 to the controller (ii) 08, and controls the refrigeration unit 09 to make the working power P = h; if Q1Less than Q0Then, the flow sensor 07 sends an instruction to control the operating power P = i of the refrigeration unit 09 to the controller (ii) 08, and controls the refrigeration unit 09 to set the operating power P = i, thereby reducing energy consumption.
While the embodiments of the invention have been described with reference to the accompanying drawings, it is not limited to the scope of the invention, and it will be understood by those skilled in the art that various changes and modifications in equivalent structure and equivalent flow of the invention may be made without departing from the spirit and scope of the invention, and it is within the scope of the invention that the invention may be applied to other related fields directly or indirectly.
Claims (6)
1. An energy-saving control system of a central air conditioner is characterized by comprising an air conditioner tail end, a tail end water supply and return communicating pipeline, a temperature and humidity sensor, an electric regulating valve, a controller (I), a water return pump, a flow sensor, a controller (II) and a refrigerating unit, wherein the temperature and humidity sensor is used for detecting indoor relative humidity and water supply temperature at the tail end of the air conditioner, and a feedback instruction sends a feedback instruction to the controller (I); the controller (I) is used for receiving a feedback instruction sent by the temperature sensor and controlling the opening of the electric regulating valve; the electric regulating valve is used for controlling the flow of the tail end water supply and return communication pipeline; the flow sensor is positioned between the water return pump and the refrigerating unit and used for detecting the flow of the main water return pipeline and sending a feedback instruction to the controller (II); and the controller (II) is used for receiving a feedback instruction sent by the flow sensor and controlling the operating power of the refrigerating unit.
2. The energy-saving control system according to claim 1, wherein the temperature and humidity sensor is electrically connected to the controller (I), the controller (I) is electrically connected to the electric control valve, the flow sensor is electrically connected to the controller (II), and the controller (II) is electrically connected to the refrigerating unit.
3. The energy-saving control system according to claim 1, wherein if the indoor relative humidity detected by the temperature and humidity sensor is not within the set indoor relative humidity range, the feedback instruction sent to the controller (one) is to adjust the electric control valve to be in a closed state, that is, the opening degree is 0; and if the temperature is within the set indoor relative humidity range, judging the detected water supply temperature at the tail end of the air conditioner.
4. The energy-saving control system according to claim 3, wherein the temperature and humidity sensor detects the temperature of the water supplied to the air conditioner terminal, and if the temperature is higher than the set terminal water supply temperature, the feedback instruction to the controller (one) is to decrease the opening of the electric control valve; if the temperature is lower than the set terminal water supply temperature, a feedback instruction is sent to the controller I to increase the opening of the electric regulating valve.
5. The energy saving control system according to claims 1 and 4, further characterized in that the flow rate of the tail end water return pipeline flowing into the tail end water supply pipeline through the tail end water supply and return communication pipeline is reduced when the opening of the electric regulating valve is reduced, so that the tail end water supply temperature is reduced; and when the opening of the electric regulating valve is increased, the flow rate of the tail end water return pipeline flowing into the tail end water supply pipeline through the tail end water supply and return communication pipeline is increased, so that the tail end water supply temperature is increased.
6. The energy-saving control system according to claims 1 and 5, wherein the flow rate of the primary water return pipeline detected by the flow rate sensor is higher than the set flow rate of the primary water return pipeline, and a feedback instruction is sent to the controller (II) to adjust the refrigerating unit to operate at a relatively high power; if the flow rate of the water is lower than the set flow rate of the main water return pipeline, a feedback instruction is sent to the controller (II) to adjust the relatively low-power operation of the refrigerating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484257.3A CN114754479A (en) | 2022-05-06 | 2022-05-06 | Energy-saving control system of central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210484257.3A CN114754479A (en) | 2022-05-06 | 2022-05-06 | Energy-saving control system of central air conditioner |
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| CN114754479A true CN114754479A (en) | 2022-07-15 |
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| CN202210484257.3A Pending CN114754479A (en) | 2022-05-06 | 2022-05-06 | Energy-saving control system of central air conditioner |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589058A (en) * | 2011-01-10 | 2012-07-18 | 广东迪奥技术工程有限公司 | Efficient energy-saving air-conditioning system with independently controlled temperature and humidity and adjusting method thereof |
| KR20140023593A (en) * | 2012-08-16 | 2014-02-27 | 주식회사 한성시스코 | Individual heating system and method for controlling the same |
| CN104864546A (en) * | 2014-02-26 | 2015-08-26 | 珠海格力电器股份有限公司 | Control method and controller of combined air conditioning unit and air conditioning unit |
| CN107228428A (en) * | 2017-07-17 | 2017-10-03 | 西安建筑科技大学 | A kind of full air-conditioning system of family formula fresh air purifying |
| CN107588514A (en) * | 2017-09-26 | 2018-01-16 | 湖北中航安智技术有限公司 | A kind of air-conditioning humiture decoupled system and its control method |
| JP2018186479A (en) * | 2017-07-20 | 2018-11-22 | 株式会社ノーリツ | Communication adapter |
| CN213746948U (en) * | 2020-12-10 | 2021-07-20 | 方盛(天津)能源管理有限公司 | Condensation boiler hot water system based on interaction of quality adjustment and quantity adjustment |
-
2022
- 2022-05-06 CN CN202210484257.3A patent/CN114754479A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589058A (en) * | 2011-01-10 | 2012-07-18 | 广东迪奥技术工程有限公司 | Efficient energy-saving air-conditioning system with independently controlled temperature and humidity and adjusting method thereof |
| KR20140023593A (en) * | 2012-08-16 | 2014-02-27 | 주식회사 한성시스코 | Individual heating system and method for controlling the same |
| CN104864546A (en) * | 2014-02-26 | 2015-08-26 | 珠海格力电器股份有限公司 | Control method and controller of combined air conditioning unit and air conditioning unit |
| CN107228428A (en) * | 2017-07-17 | 2017-10-03 | 西安建筑科技大学 | A kind of full air-conditioning system of family formula fresh air purifying |
| JP2018186479A (en) * | 2017-07-20 | 2018-11-22 | 株式会社ノーリツ | Communication adapter |
| CN107588514A (en) * | 2017-09-26 | 2018-01-16 | 湖北中航安智技术有限公司 | A kind of air-conditioning humiture decoupled system and its control method |
| CN213746948U (en) * | 2020-12-10 | 2021-07-20 | 方盛(天津)能源管理有限公司 | Condensation boiler hot water system based on interaction of quality adjustment and quantity adjustment |
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