CN111578468B - Control method of air conditioning system - Google Patents

Control method of air conditioning system Download PDF

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Publication number
CN111578468B
CN111578468B CN202010398718.6A CN202010398718A CN111578468B CN 111578468 B CN111578468 B CN 111578468B CN 202010398718 A CN202010398718 A CN 202010398718A CN 111578468 B CN111578468 B CN 111578468B
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China
Prior art keywords
humidity
dehumidifying
dehumidification
reduction
mode
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CN202010398718.6A
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Chinese (zh)
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CN111578468A (en
Inventor
罗荣邦
王飞
丁爽
袁俊军
许文明
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Publication of CN111578468A publication Critical patent/CN111578468A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • F24F2110/10—Temperature
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioning system. The invention aims to solve the problems of low dehumidification efficiency and poor user experience of the existing control method. To this end, the control method of the present invention includes: acquiring the indoor environment humidity and the humidity of the solid adsorption component; calculating the difference between the indoor environment humidity and the humidity of the solid adsorption component; comparing the indoor environment humidity with a first humidity threshold value, and comparing the difference value with a first preset difference value; and selectively controlling the dehumidifying device to operate a dehumidifying mode or a regenerating mode based on the comparison result. The control method can effectively judge whether the adsorption capacity of the current solid adsorption component is enough to dehumidify the current indoor space, guarantees the continuity of the dehumidification process, and improves the dehumidification efficiency and the user experience.

Description

Control method of air conditioning system
Technical Field
The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioning system.
Background
The traditional air conditioner mainly realizes humidity adjustment by means of a refrigeration mode, namely, low-temperature refrigerants with the temperature lower than the dew point temperature of air are utilized to exchange heat with indoor air, so that moisture in the air is condensed into liquid and then discharged. However, the above-mentioned dehumidification method not only causes a sudden drop in indoor temperature and a deterioration in user experience, but also significantly increases power consumption, resulting in a waste of energy.
In order to solve the above problems, the prior art generally adopts a technical scheme of separately controlling temperature and humidity to improve user experience and reduce energy consumption of the air conditioner. At present, humidity control is mainly realized by solution dehumidification, the solution dehumidification is realized by absorbing moisture in air in the process that indoor air flows through a moisture absorption solution, and the moisture absorption solution is regenerated by heating when the moisture absorption solution is diluted. However, in the actual dehumidification and regeneration control process, the judgment on the adsorption capacity of the dehumidification solution is lacked, so that the solution regeneration is started as soon as the dehumidification operation is performed, the dehumidification process is interrupted, the dehumidification efficiency is affected, and the user experience is poor.
Accordingly, there is a need in the art for a new control method of an air conditioning system to solve the above-mentioned problems.
Disclosure of Invention
In order to solve at least one of the above problems in the prior art, that is, to solve the problems of low dehumidification efficiency and poor user experience of the existing control method, the present invention provides a control method of an air conditioning system, where the air conditioning system includes: the heat exchange device comprises a compressor, an outdoor heat exchanger, a first throttling element and an indoor heat exchanger which are connected through a refrigerant pipe, wherein the outdoor heat exchanger is provided with an outer fan, and the indoor heat exchanger is provided with an inner fan; a dehumidification device, the dehumidification device comprising: the dehumidifying box is provided with a dehumidifying air inlet, a dehumidifying air outlet, a reducing air inlet and a reducing air outlet which can be opened and closed, the dehumidifying air inlet or the dehumidifying air outlet is provided with a dehumidifying fan, and the reducing air inlet or the reducing air outlet is provided with a reducing fan; the solid adsorption component is fixedly arranged in the dehumidification box; the reduction assembly comprises a reduction coil pipe, the reduction coil pipe is coiled on the solid adsorption assembly, and a heat exchange medium is allowed to flow through the reduction coil pipe; the control method comprises the following steps:
acquiring the indoor environment humidity and the humidity of the solid adsorption component;
calculating a difference between the indoor ambient humidity and the humidity of the solid sorption assembly;
comparing the indoor environment humidity with a first humidity threshold value, and comparing the difference value with a first preset difference value;
and selectively controlling the dehumidifying device to operate a dehumidifying mode or a regenerating mode based on the comparison result.
In an optimal technical solution of the control method of the air conditioning system, the dehumidification air inlet, the dehumidification air outlet, the reduction air inlet and the reduction air outlet are respectively provided with an air valve, and the air conditioning system further includes: the photovoltaic device comprises a photovoltaic panel, a solar controller and an electricity storage component, the photovoltaic panel is connected with the electricity storage component through the solar controller, and the solar controller is respectively connected with the air valve, the dehumidification fan and the reduction fan;
the control method further comprises the following steps:
acquiring the residual capacity of the power storage component;
comparing the residual electric quantity with an electric quantity threshold value;
and when the residual electric quantity is greater than or equal to the electric quantity threshold value and the dehumidifying device operates in the dehumidifying mode or the regenerating mode, controlling the photovoltaic device to supply power to the air valve, the dehumidifying fan and the reducing fan.
In a preferable embodiment of the control method of the air conditioning system, the control method further includes:
when the dehumidification device operates in a dehumidification mode, judging whether the solid adsorption component meets regeneration conditions;
when the regeneration condition is met, controlling the dehumidifying device to operate a regeneration mode;
when the dehumidification device operates in a dehumidification mode, the air valves at the dehumidification air inlet and the dehumidification air outlet are opened, and the dehumidification fan operates;
wherein the regeneration conditions comprise at least one of the following conditions:
the indoor environment humidity is greater than or equal to a second humidity threshold value, and the difference between the indoor environment humidity and the humidity of the solid adsorption component is smaller than a second preset difference;
the indoor environment humidity is greater than or equal to the second humidity threshold and the falling rate of the indoor environment humidity is smaller than a rate threshold;
wherein the first humidity threshold is greater than the second humidity threshold.
In a preferred embodiment of the control method of the air conditioning system, the step of "controlling the dehumidifying device to operate the regeneration mode" further includes:
acquiring the operation mode of the heat exchange device;
judging whether the heat exchange device operates in a refrigeration mode or not;
and controlling the dehumidifying device to operate the regeneration mode based on the judgment result.
In a preferred technical scheme of the control method of the air conditioning system, two ends of the reduction coil are respectively communicated with an exhaust port of the compressor and an inlet of the outdoor heat exchanger, the exhaust port of the compressor is provided with a first electric control valve, the reduction coil is provided with a second electric control valve, and the solar controller is connected with the second electric control valve;
the step of controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result further includes:
when the heat exchange device operates in a refrigeration mode, the air valves of the reduction air inlet and the reduction air outlet are controlled to be opened, the air valves of the dehumidification air inlet and the dehumidification air outlet are controlled to be closed, the reduction fan is controlled to be opened, the dehumidification fan is controlled to be closed, and the second electric control valve is controlled to be opened and the first electric control valve is controlled to be closed.
In a preferred technical solution of the control method of the air conditioning system, an exhaust port of the compressor is provided with a first electronic control valve, and the reduction assembly further includes:
the heat exchange device comprises a reduction water tank, wherein heat exchange liquid is stored in the reduction water tank, a first end and a second end of a reduction coil are respectively communicated with the reduction water tank, a circulating pump is arranged on the reduction coil, and the solar controller is connected with the circulating pump;
a heat exchange coil: the heat exchange coil part is coiled in the reduction water tank, the first end of the heat exchange coil is communicated with the exhaust port of the compressor, and the second end of the heat exchange coil is communicated with the inlet of the outdoor heat exchanger;
the second electric control valve is arranged on the heat exchange coil and positioned between the first end of the heat exchange coil and the reduction water tank, and the solar controller is connected with the second electric control valve;
the second throttling element is arranged on the heat exchange coil and positioned between the reduction water tank and the second end of the heat exchange coil, and the solar controller is connected with the second throttling element;
the step of controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result further includes:
when the heat exchange device operates in a refrigeration mode, the air valves of the reduction air inlet and the reduction air outlet are controlled to be opened, the air valves of the dehumidification air inlet and the dehumidification air outlet are controlled to be closed, the reduction fan and the circulating pump are controlled to be opened, the dehumidification fan is controlled to be closed, and the second electric control valve is controlled to be opened, the first electric control valve is controlled to be closed, and the second throttling element is controlled to be fully opened.
In a preferred embodiment of the control method of an air conditioning system, the step of "controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result" further includes:
when the heat exchange device does not operate in a refrigeration mode, the air valves of the reduction air inlet and the reduction air outlet are controlled to be opened, the air valves of the dehumidification air inlet and the dehumidification air outlet are controlled to be closed, the compressor, the outer fan, the reduction fan and the circulating pump are controlled to be opened, the dehumidification fan is controlled to be closed, the second electric control valve is controlled to be opened, the first electric control valve is controlled to be closed, the first throttling element is controlled to be fully opened, and the second throttling element is controlled to be opened to a set opening degree.
In a preferable embodiment of the control method of the air conditioning system, the control method further includes:
when the dehumidifying device runs in a regeneration mode, judging whether the dehumidifying device meets an exit condition;
when the exit condition is met, controlling the dehumidifying device to exit the regeneration mode;
wherein the exit condition comprises at least one of:
the difference between the indoor environment humidity and the humidity of the solid adsorption component is greater than or equal to a third preset difference;
the operation time of the regeneration mode reaches a first preset time.
In a preferred embodiment of the control method of the air conditioning system, the step of selectively controlling the dehumidifying device to operate in the dehumidifying mode or the regenerating mode based on the comparison result further includes:
when the indoor environment humidity is greater than or equal to a first humidity threshold value and the difference value is greater than or equal to a first preset difference value, controlling the dehumidifying device to operate the dehumidifying mode;
when the indoor environment humidity is larger than or equal to a first humidity threshold value and the difference value is smaller than a first preset difference value, controlling the dehumidifying device to operate the regeneration mode firstly and then operate the dehumidifying mode;
and when the indoor environment humidity is smaller than a first humidity threshold value and the difference value is larger than or equal to the first preset difference value, controlling the dehumidifying device to only operate in the regeneration mode.
In a preferred embodiment of the control method of the air conditioning system, the control method further includes:
judging whether the dehumidifying device meets a stop condition;
when the stop condition is met, controlling the dehumidifying device to stop running;
wherein the stop condition includes:
the indoor ambient humidity is less than a stop humidity threshold;
and the indoor environment humidity is more than or equal to the stop humidity threshold but less than the second humidity threshold, and the running time of the dehumidifying device reaches a second preset time.
The technical scheme includes that whether a dehumidification mode is entered or not is judged by combining indoor environment humidity and humidity of the solid adsorption component, the control method can effectively judge whether adsorption capacity of the current solid adsorption component is enough to dehumidify the current indoor space or not, the indoor space can be dehumidified when the adsorption capacity is sufficient, the solid adsorption component is firstly regenerated and then the indoor space is dehumidified when the adsorption capacity is insufficient, continuity of a dehumidification process is guaranteed, and dehumidification efficiency and user experience are improved.
Furthermore, by arranging the photovoltaic device, the dehumidification device can supply power through the photovoltaic device in the operation process, so that the energy consumption of the air conditioning system is reduced, and the energy-saving control of the air conditioning system is realized.
Further, whether the solid adsorption component meets the regeneration condition or not is judged jointly by combining the indoor environment humidity and the humidity of the solid adsorption component when the dehumidifying device operates in the dehumidifying mode, and the dehumidifying device is controlled to operate in the regenerating mode when the regeneration condition is met, the control method can be used for judging whether the solid adsorption component needs to be regenerated or not by combining the state of the current indoor environment, so that the regeneration opportunity of the solid adsorption component is matched with the current environment humidity, the judgment accuracy of the regeneration opportunity of the solid adsorption component is improved, the regeneration of the solid adsorption component is better, timely and reasonable, the balance of the dehumidifying effect and the regenerating effect is realized, and the dehumidifying efficiency of the air conditioning system is improved.
Furthermore, whether the heat exchange device operates in the refrigeration mode or not is further judged when the regeneration mode is operated, and the control method can reasonably select the regeneration mode of the solid adsorption component based on the current state of the heat exchange device, so that the regeneration energy consumption of the solid adsorption component is low, and the influence on user experience is small.
Furthermore, whether the quitting condition is met or not is judged when the dehumidification device runs the regeneration mode, and the regeneration mode is quitted when the quitting condition is met.
Drawings
A control method of an air conditioning system of the present invention is described below with reference to the accompanying drawings. In the drawings:
fig. 1 is a system diagram of an air conditioning system in a first embodiment of the present invention;
fig. 2 is a main flowchart of a control method of an air conditioning system in a first embodiment of the present invention;
fig. 3 is a flowchart of a preferred embodiment of a control method of an air conditioning system in a first embodiment of the present invention;
fig. 4 is a flowchart of a regeneration mode of a dehumidifying apparatus of an air conditioning system according to a first embodiment of the present invention;
fig. 5 is a flow chart illustrating the operation of the photovoltaic device of the air conditioning system according to the first embodiment of the present invention;
fig. 6 is a system diagram of an air conditioning system in a second embodiment of the present invention;
fig. 7 is a flowchart of a regeneration mode of a dehumidifying apparatus of an air conditioning system according to a second embodiment of the present invention;
fig. 8 is a logic diagram of a control method of an air conditioning system in a second embodiment of the present invention.
List of reference numerals
1. A heat exchange device; 11. a compressor; 111. a first electrically controlled valve; 12. an outdoor heat exchanger; 121. an outer fan; 13. a first throttling element; 14. an indoor heat exchanger; 141. an inner fan; 142. an indoor water pan; 143. a condensate pipe; 16. a chassis;
3. a dehumidifying device; 31. a dehumidification box; 311. a dehumidification air inlet; 312. a dehumidification air outlet; 313. a reduction gas inlet; 314. a reduction gas outlet; 315. a dehumidification fan; 316. a reduction fan; 32. a solid adsorbent assembly; 33. a reduction water tank; 34. reducing the coil pipe; 341. a circulation pump; 342. a cooling heat exchanger; 343. a cooling fan; 35. a heat exchange coil; 351. a second throttling element; 352. a second electrically controlled valve; 36. a cooling water tank; 361. a pipeline;
5. a photovoltaic device; 51. a photovoltaic panel; 52. an electricity storage part; 53. a solar controller; 54. a water collector; 55. a water collecting pipe.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the control method is described in connection with an air conditioning system in a single cooling mode, this is not intended to limit the scope of the present application, and those skilled in the art may apply the control method to other air conditioning systems without departing from the principles of the present application. For example, the control method of the present application can also be applied to an air conditioning system with a four-way valve, and the like.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring first to fig. 1, an air conditioning system of the present invention will be described. Fig. 1 is a system diagram of an air conditioning system according to a first embodiment of the present invention.
As shown in fig. 1, in the present embodiment, an air conditioning system (hereinafter, referred to as a system) includes a heat exchanging device 1, a dehumidifying device 3, and a photovoltaic device 5, and the heat exchanging device 1 mainly includes a compressor 11, an outdoor heat exchanger 12, an outer fan 121, a first throttling element 13, an indoor heat exchanger 14, an inner fan 141, and a general controller (not shown in the figure). The compressor 11, the outdoor heat exchanger 12, the outer fan 121, the first throttling element 13, and the overall controller are disposed in the cabinet 16 of the outdoor unit, and the indoor heat exchanger 14 and the inner fan 141 are disposed in the indoor unit. The compressor 11, the outdoor heat exchanger 12, the first throttling element 13 and the indoor heat exchanger 14 are connected through refrigerant pipes to form a refrigerant cycle, and a first electric control valve 111 is arranged at an exhaust port of the compressor 11. The master controller is respectively connected with the compressor 11, the outer fan 121, the first electric control valve 111, the first throttling element 13 and the inner fan 141, and is used for controlling the operation of the above components. In this embodiment, the first throttling element 13 may be a valve body with controllable opening, such as an electronic expansion valve, and the first electronic control valve 111 may be a valve body capable of opening and closing, such as an electromagnetic valve.
It should be noted that, in the present embodiment, in order to clarify the connection relationship among the above components, the components of the outdoor unit are scattered and then drawn in fig. 1, and it can be understood by those skilled in the art that the installation positions of the components in the drawing are not true installation positions.
With continued reference to fig. 1, the dehumidification apparatus 3 includes a dehumidification tank 31, a solid adsorption module 32, and a reduction module (not shown in the drawings). The dehumidifying tank 31 is provided with an openable dehumidifying air inlet 311, a dehumidifying air outlet 312, a reducing air inlet 313 and a reducing air outlet 314, which are opened and closed by a damper. The dehumidification air inlet 311 and the dehumidification air outlet 312 are respectively communicated with the indoor space, the dehumidification air outlet 312 is provided with a dehumidification fan 315, the reduction air inlet 313 is communicated with the indoor space, the reduction air outlet 314 is communicated with the outdoor space, and the reduction air outlet 314 is provided with a reduction fan 316. The dehumidification box 31 and the solid adsorption module 32 are disposed indoors, such as in an indoor unit or individually disposed indoors, and the reduction water box 33 is disposed outdoors, such as in an outdoor unit casing 16 or individually disposed outdoors.
The solid adsorption component 32 is fixedly arranged in the dehumidification box 31, and the solid adsorption component 32 comprises a solid adsorbent which can be silica gel, a molecular sieve, activated alumina or zeolite. The reduction assembly includes a reduction coil 34, and the reduction coil 34 is partially coiled on the solid adsorbent assembly 32, such as being wound along the outer side of the solid adsorbent assembly 32 or directly coiled inside the solid adsorbent assembly 32. The reducing coil 34 has a first end communicating with the discharge port of the compressor 11 and a second end communicating with the inlet of the outdoor heat exchanger 12, so that the reducing coil 34 allows the refrigerant (i.e., the heat exchange medium) to flow therethrough. In addition, a second electrically controlled valve 352 is provided on the reduction coil 34 adjacent the first end.
Still referring to fig. 1, the photovoltaic apparatus 5 includes a photovoltaic panel 51, an electricity storage part 52 and a solar controller 53, the photovoltaic panel 51 is connected to the electricity storage part 52 through the solar controller 53, and the solar controller 53 is respectively connected to the air valve of the dehumidifying apparatus 3, the dehumidifying fan 315, the reducing fan 316 and the second electric control valve 352 to supply power to the above parts and control the above parts to operate. For example, the solar controller 53 is directly connected to the air valve, the dehumidifying fan 315, the reducing fan 316 and the second electric control valve 352, or indirectly connected to the above components through the general controller. The photovoltaic panel 51 is a plate-shaped unit composed of single crystal silicon or polycrystalline silicon cells, and converts light energy into electric energy by photoelectric effect. The electricity storage component 52 preferably adopts a storage battery pack, the storage battery pack comprises a plurality of storage batteries, and the photovoltaic panel 51 is connected with the storage battery pack through the solar controller 53, so that the storage and utilization of the electric energy after photoelectric conversion are realized, for example, the electric energy after photoelectric conversion is stored in the storage battery pack, and the electric energy in the storage battery pack is used for the operation of each electricity utilization component of the dehumidification device 3. The photovoltaic power generation and the current processing are well known in the art and will not be described herein. The photovoltaic panel 51, the electricity storage component 52, and the solar controller 53 are all disposed outdoors, for example, partially disposed in the outdoor unit casing 16 or all disposed outdoors separately, and the second electronic control valve 352 may be a valve body such as an electromagnetic valve capable of opening and closing in the present embodiment.
The dehumidification control method of the air conditioning system of the present application is described below with reference to fig. 2. Fig. 2 is a main flowchart of a control method of an air conditioning system according to a first embodiment of the present invention.
As shown in fig. 2, in order to solve the problems of low dehumidification efficiency and poor user experience of the existing control method, the control method of the present application mainly includes the following steps:
s101, acquiring the indoor environment humidity and the humidity of the solid adsorption component 32; for example, the humidity of the indoor environment (or referred to as relative humidity, hereinafter the same) is obtained by a humidity sensor disposed at the dehumidification air inlet 311 of the dehumidification box 31 or at any position of the indoor unit, and the humidity of the solid adsorption module 32 is obtained by a humidity sensor disposed inside or at the periphery of the solid adsorption module 32.
S103, calculating the difference between the indoor environment humidity and the humidity of the solid adsorption component 32; for example, after the indoor ambient humidity and the humidity of the solid adsorbing element 32 are obtained, the indoor ambient humidity is used to subtract the humidity of the solid adsorbing element 32, and the difference between the indoor ambient humidity and the humidity is obtained.
S105, comparing the indoor environment humidity with a first humidity threshold value, and comparing the difference value with a first preset difference value; for example, the first humidity threshold is 60%, and the first preset difference value of 10% is, after calculating the difference value between the two values, comparing the indoor ambient humidity with the value of 60%, and comparing the difference value with the value of 10%. Of course, the specific values of the first humidity threshold and the first preset difference are only used as examples in this application, and those skilled in the art can make reasonable adjustments based on the actual situation.
S107, selectively controlling the dehumidifying device 3 to operate a dehumidifying mode or a regenerating mode based on the comparison result; for example, when the first humidity threshold is greater than or equal to 60% and the difference is greater than or equal to 10%, controlling the dehumidifying device 3 to operate the dehumidifying mode; and controlling the dehumidifying device 3 to operate the regeneration mode when the first humidity threshold is less than 60% and the difference is less than 10%.
As will be understood by those skilled in the art, when the humidity of the indoor environment is greater than or equal to the first humidity threshold, it is proved that the humidity of the indoor environment is too high and is not in the comfort zone, and the dehumidification process needs to be performed on the indoor environment. When the difference between the indoor environment humidity and the humidity of the solid adsorption component 32 is greater than or equal to the first preset difference value, it is proved that the difference between the indoor environment humidity and the indoor environment humidity is large, the adsorption capacity is good, and the solid adsorption component can be used for adsorbing indoor moisture. On the contrary, when the indoor environment humidity is smaller than the first humidity threshold, the indoor humidity is proved to be more appropriate, so that the dehumidification treatment is not needed. When the difference between the indoor ambient humidity and the humidity of the solid adsorption element 32 is smaller than the first predetermined difference, it is proved that the adsorption capacity of the solid adsorption element 32 is poor, and therefore, the regeneration process is required.
Whether a dehumidification mode is started or not is judged by combining the indoor environment humidity and the humidity of the solid adsorption component 32, the control method can effectively judge whether the adsorption capacity of the current solid adsorption component 32 is enough to dehumidify the current indoor space or not, and can directly dehumidify the indoor space when the adsorption capacity is enough; when adsorption capacity is not enough, then regenerate solid adsorption component 32 earlier, decide again whether to indoor dehumidification to guarantee dehumidification process's continuity, improve dehumidification efficiency and user experience.
Next, a more preferred embodiment of the control method of the present application will be described with reference to fig. 3 to 5. Fig. 3 is a flowchart of a preferred embodiment of a control method of an air conditioning system according to a first embodiment of the present invention; fig. 4 is a flowchart of a regeneration mode of a dehumidifying apparatus of an air conditioning system according to a first embodiment of the present invention; fig. 5 is a flowchart illustrating an operation of the photovoltaic device of the air conditioning system according to the first embodiment of the present invention.
As shown in fig. 3, in a preferred embodiment, the control method of the air conditioning system of the present application includes the following steps:
s201, acquiring the indoor environment humidity and the humidity of the solid adsorption component 32; for example, the indoor ambient humidity is acquired by a humidity sensor provided at the dehumidification air inlet 311 of the dehumidification tank 31 or at an arbitrary position of the indoor unit, and the humidity of the solid adsorption unit 32 is acquired by a humidity sensor provided inside or outside the solid adsorption unit 32.
S203, calculating the difference between the indoor environment humidity and the humidity of the solid adsorption component 32; for example, after the indoor ambient humidity and the humidity of the solid adsorbing element 32 are obtained, the indoor ambient humidity is used to subtract the humidity of the solid adsorbing element 32, and the difference between the indoor ambient humidity and the humidity is obtained.
S205, comparing the indoor environment humidity with a first humidity threshold value, and comparing the difference value with a first preset difference value; for example, the first humidity threshold is 60%, and the first preset difference value of 10% is, after calculating the difference value between the two values, comparing the indoor ambient humidity with the value of 60%, and comparing the difference value with the value of 10%.
After comparing the indoor ambient humidity with the first humidity threshold and the difference with the first preset difference, the dehumidifying apparatus 3 is selectively controlled to operate in the dehumidifying mode or the regenerating mode based on the comparison result. Specifically, the method comprises the following steps:
(1) when the indoor ambient humidity is greater than the first humidity threshold and the difference between the indoor ambient humidity and the humidity of the solid adsorbing assembly 32 is greater than or equal to the first preset difference, step S211 is executed to control the dehumidifying device 3 to operate the dehumidifying mode. When the indoor environment humidity is greater than or equal to the first humidity threshold, the indoor humidity is proved to be too high at the moment and is not in a comfortable interval, and indoor dehumidification is needed. When the difference between the indoor ambient humidity and the humidity of the solid adsorption component 32 is greater than or equal to the first preset difference, it is proved that the difference between the indoor ambient humidity and the solid adsorption component 32 is larger, the adsorption capacity is better, and the solid adsorption component can be used for adsorbing indoor moisture. Therefore, at this time, the dehumidifying mode of the dehumidifying apparatus 3 can be controlled directly, and the moisture in the room can be adsorbed by the solid adsorption unit 32 to dehumidify the room.
(2) When the indoor ambient humidity is less than the first humidity threshold and the difference between the indoor ambient humidity and the humidity of the solid adsorbing assembly 32 is less than the first preset difference, step S217 is executed to control the dehumidifying apparatus 3 to operate only in the regeneration mode. When the indoor environment humidity is smaller than the first humidity threshold value, the indoor humidity is proved to be appropriate at the moment and is in a comfortable interval, and therefore indoor dehumidification is not needed. When the difference between the indoor environment humidity and the humidity of the solid adsorption element 32 is smaller than the first preset difference, it is proved that the difference between the indoor environment humidity and the solid adsorption element 32 is smaller, and although the difference has a certain adsorption capacity, the difference still has a risk of insufficient adsorption capacity, so that for the sake of safety, the dehumidifying device 3 can be controlled to operate only in the regeneration mode, so that the solid adsorption element 32 maintains a better adsorption capacity after regeneration.
(3) When the indoor ambient humidity is greater than or equal to the first humidity threshold value, but the difference between the indoor ambient humidity and the humidity of the solid adsorption assembly 32 is smaller than the first preset difference value, steps S207 and S211 are executed in sequence, and the dehumidifying device 3 is controlled to operate the regeneration mode first and then operate the dehumidifying mode. When the indoor environment humidity is greater than the first humidity threshold, the indoor humidity is proved to be too high at the moment and is not in a comfortable interval, and indoor dehumidification is needed. When the difference between the indoor environment humidity and the humidity of the solid adsorption component 32 is smaller than the first preset difference, it is proved that the difference between the indoor environment humidity and the indoor environment humidity is small, the adsorption capacity is weak, and the solid adsorption component is not suitable for adsorbing indoor moisture. At this time, the dehumidifying device 3 is controlled to operate the regeneration mode to regenerate the solid adsorption module 32, and then the dehumidifying device 3 is controlled to operate the dehumidifying mode to dehumidify the room by using the solid adsorption module 32.
(4) When the indoor environment humidity is less than the first humidity threshold and the difference between the indoor environment humidity and the humidity of the solid adsorption element 32 is greater than or equal to the first preset difference, the current state is maintained and no operation is performed. When the indoor environment humidity is smaller than the first humidity threshold value, the indoor humidity is proved to be appropriate at the moment and is in a comfortable interval, and therefore indoor dehumidification is not needed. When the difference between the indoor environment humidity and the humidity of the solid adsorption component 32 is greater than or equal to the first preset difference, it is proved that the difference between the indoor environment humidity and the solid adsorption component 32 is large, the adsorption capacity is strong, and therefore, no operation is required, and the dehumidifying device 3 is controlled to keep the current running state.
Whether dehydrating unit 3 gets into the dehumidification mode through the humidity joint judgement that combines indoor environment humidity and solid adsorption component 32, the control method of this application can judge effectively whether current solid adsorption component 32's adsorption efficiency is enough to current indoor dehumidification, effectively dehumidify indoor when adsorption efficiency is enough, when adsorption efficiency is not enough, then regenerate solid adsorption component 32 earlier, dehumidify indoor again, guarantee the continuity of dehumidification process, improve dehumidification efficiency and effect.
With continued reference to fig. 3, when the dehumidifying apparatus 3 operates in the dehumidification mode (step S211), the control method further includes:
s213, judging whether the solid adsorption component 32 meets the regeneration condition; when the regeneration condition is satisfied, returning to step S207, and controlling the dehumidifying apparatus 3 to operate the regeneration mode; otherwise, when the regeneration condition is not satisfied, step S215 is executed to further determine whether the dehumidifying apparatus 3 satisfies the stop condition; when the stop condition is satisfied, executing step S221, controlling the dehumidifying apparatus 3 to stop operating; otherwise, when the stop condition is not satisfied, the process returns to step S211, and the dehumidifying apparatus 3 is controlled to continue to operate in the dehumidifying mode.
It can be understood by those skilled in the art that when the indoor humidity reaches a certain threshold, the dehumidification is required to be performed indoors, at this time, the general controller controls the dehumidification device 3 to operate in a dehumidification mode, that is, controls the dehumidification air inlet 311 and the dehumidification air outlet 312 to be opened, and controls the dehumidification fan 315 to be started, the indoor air enters the dehumidification box 31 from the dehumidification air inlet 311 under the driving of the dehumidification fan 315, and the moisture in the air is adsorbed on the solid adsorbent to become dry air when passing through the solid adsorption component 32, the dry air returns indoors through the dehumidification air outlet 312, and the indoor humidity decreases accordingly. When the dehumidification device 3 operates in the dehumidification mode for a period of time, the adsorption capacity of the solid adsorption component 32 is reduced, and when the adsorption capacity is reduced to a certain degree, the solid adsorption module needs to be regenerated, so that when the dehumidification device 3 operates in the dehumidification mode, whether the solid adsorption component 32 meets the regeneration condition is determined.
More preferably, the regeneration conditions include at least one of the following conditions: the indoor ambient humidity is greater than or equal to the second humidity threshold and the difference between the indoor ambient humidity and the humidity of the solid adsorption assembly 32 is less than the second preset difference. The indoor ambient humidity is greater than or equal to the second humidity threshold and the rate of decrease of the indoor ambient humidity is less than the rate threshold.
For example, the second humidity threshold may be 55%, the second preset difference may be 5%, when the indoor ambient humidity is greater than or equal to 55%, it is proved that the indoor humidity is decreased, but the indoor humidity still does not reach the optimal humidity range, and the difference between the indoor ambient humidity and the humidity of the solid adsorption element 32 is less than 5%, it is proved that the indoor ambient humidity and the humidity of the solid adsorption element 32 are relatively close to each other, and although the dehumidification can be continued, the adsorption capacity of the solid adsorption element 32 is greatly decreased in this state, so that the solid adsorption element 32 needs to be regenerated in time to improve the adsorption capacity thereof, and further improve the dehumidification efficiency of the air conditioning system.
For another example, the second humidity threshold may be 55%, the rate threshold may be 0.5%/min, and when the indoor ambient humidity is greater than or equal to 55%, it is proved that the indoor humidity has not reached the optimal humidity range, and the dehumidification needs to be continued. At this time, the drop speed of the indoor humidity can be calculated by obtaining the humidity value of the indoor environment within a period of time, and when the drop speed is less than 0.5%/min, the drop speed is proved to be slow, although the dehumidification can still be continued, the dehumidification capacity of the solid adsorption component 32 is insufficient, and the regeneration is needed in time to improve the adsorption capacity, so that the dehumidification efficiency of the air conditioning system is improved. Of course, the specific values of the second humidity threshold, the second preset difference and the descending speed are only used as examples in this application, and those skilled in the art can make reasonable adjustments based on the actual situation.
More preferably, the stop condition includes: the indoor environment humidity is less than the stop humidity threshold; the indoor environment humidity is greater than or equal to the stop humidity threshold but less than the second humidity threshold, and the operation duration of the dehumidifying device 3 reaches a second preset duration.
For example, the stop humidity threshold may be 50%, when the indoor environment humidity is less than 50%, it is proved that the indoor humidity has dropped to a better humidity range at this time, and at this time, the dehumidification does not need to be continued, so that the operation of the dehumidification device 3 is controlled to stop; otherwise, the dehumidification mode still needs to be operated to dehumidify the indoor space.
For another example, the second humidity threshold may still be 55%, the second operation time may be 30min, when the indoor ambient humidity is greater than 50% but less than 55%, and the operation time of the dehumidification mode has reached 30min, it is proved that the dehumidification is slow at this time, and the current indoor humidity is not in the humidity range that needs to be regenerated by the solid adsorption component 32, and in this time, for energy saving, although the indoor humidity does not reach the preferred humidity, the current humidity has dropped to an interval close to the humidity, so the dehumidification device 3 may be selected to be turned off. Of course, the specific values of the second humidity threshold, the stop humidity threshold and the second operation time period are only used as examples in this application, and those skilled in the art can make reasonable adjustments based on the actual situations.
Whether the solid adsorption component 32 meets the regeneration condition is judged jointly by combining the indoor environment humidity and the humidity of the solid adsorption component 32 when the dehumidifying device 3 operates in the dehumidifying mode, and the dehumidifying device 3 is controlled to operate in the regenerating mode when the regeneration condition is met, the control method can combine the state of the current indoor environment to judge whether the solid adsorption component 32 needs to be regenerated, so that the regeneration opportunity of the solid adsorption component 32 is matched with the current environment humidity, the regeneration opportunity judgment accuracy of the solid adsorption component 32 is improved, the regeneration of the solid adsorption component 32 is better, timely and reasonable, the balance of the dehumidifying effect and the regenerating effect is realized, and the dehumidifying efficiency of the air conditioning system is improved. By considering the running time length when judging whether the dehumidifying device 3 meets the stop condition, the control method can save energy and effectively avoid unnecessary consumption of electric energy caused by low dehumidifying efficiency.
With continued reference to fig. 3, after step S207 of operating the dehumidification device 3 in the regeneration mode, the control method further includes:
s209, judging whether the dehumidifying device 3 meets an exit condition; when the exit condition is satisfied, executing step S211, controlling the dehumidifying apparatus 3 to exit the regeneration mode and continue to operate the dehumidifying mode; otherwise, when the exit condition is not satisfied, the regeneration mode operation is continuously maintained.
More preferably, the exit condition includes at least one of the following conditions: the difference between the indoor ambient humidity and the humidity of the solid adsorption element 32 is greater than or equal to a third preset difference; the operation time period of the regeneration mode reaches a first preset time period.
For example, the third predetermined difference may be 10%, when the difference between the indoor ambient humidity and the humidity of the solid adsorbing element 32 is greater than 10%, it proves that the difference between the indoor ambient humidity and the indoor humidity is greater, and it also proves that the solid adsorbing element 32 has recovered to the sufficient adsorption capacity, and at this time, the regeneration mode does not need to be continued, but the regeneration mode is exited and the dehumidification mode is operated in time.
For another example, the first preset time period may be 10min, and when the regeneration mode of the solid adsorption element 32 is operated for more than 10min, even if the difference between the indoor ambient humidity and the humidity of the solid adsorption element 32 does not reach the standard of more than 10%, the adsorption capacity of the solid adsorption element 32 is basically enough because the solid adsorption element has been operated in the regeneration mode for a sufficient time, so that the regeneration mode may be timely exited and the dehumidification mode may be operated. Of course, the specific values of the third preset difference and the first preset duration are only used as examples in this application, and those skilled in the art can make reasonable adjustments based on the actual situation.
By judging whether the quitting condition is met or not when the dehumidifying device 3 runs the regeneration mode, and quitting the regeneration mode and continuing to run the dehumidifying mode when the quitting condition is met, the control method can reasonably control the regeneration time based on the current indoor environment state, and gives consideration to the regeneration effect and the dehumidifying efficiency.
Still referring to fig. 3, similarly to the above control manner, when step S217, that is, the step of the dehumidifying apparatus 3 operating the regeneration mode, is performed, the control method further includes:
s219, judging whether the dehumidifying device 3 meets an exit condition; when the exiting condition is satisfied, executing step S221, controlling the dehumidifying apparatus 3 to exit the regeneration mode; otherwise, when the exit condition is not satisfied, the regeneration mode operation is continuously maintained.
For example, the exit condition is the same as the above condition, and when the exit condition is satisfied, it is proved that the adsorption capacity of the solid adsorption element 32 is restored at this time, and thus the regeneration mode is not required to be operated. Step S219 is performed on the premise that the indoor ambient humidity is less than the first humidity threshold, and at this time, no dehumidification is required in the room, so that the operation of the dehumidifying apparatus 3 may be controlled to stop after the regeneration mode is exited.
Referring to fig. 1 and 4, a control method of the regeneration mode of the dehumidifier will be described in detail. As shown in fig. 4, the step (S207 and S217) of operating the regeneration mode of the dehumidifying apparatus 3 specifically includes:
s301, acquiring an operation mode of the heat exchange device 1; for example, in the present embodiment, the operation mode of the heat exchanger 1 includes a cooling mode, an air blowing mode, and the like, and the current operation mode of the heat exchanger 1 may be determined by acquiring operation parameters, determining whether the compressor 11 is operating, and the like.
And S303, judging whether the heat exchange device 1 operates in a refrigeration mode or not, and controlling the dehumidifying device 3 to operate in a regeneration mode based on the judgment result. Specifically, when the heat exchange device 1 operates in the cooling mode, step S305 is executed to control the air valves of the reduction air inlet 313 and the reduction air outlet 314 to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 to be closed, control the reduction fan 316 to be opened, control the dehumidification fan 315 to be closed, control the second electronic control valve 352 to be opened, and control the first electronic control valve 111 to be closed; otherwise, when the heat exchanger 1 does not operate in the cooling mode, step S307 is executed to control the dehumidifier 3 to maintain the state before entering the regeneration mode.
For example, when the heat exchanger 1 operates in the cooling mode, the compressor 11 is in an operating state, and the refrigerant is in a circulating state. At this time, the solid adsorbent 32 may be heated by passing the high-temperature and high-pressure refrigerant discharged from the compressor 11 through the reduction coil 34 to be regenerated. At this time, referring to fig. 1, the second electronic control valve 352 is controlled to be opened, the first electronic control valve 111 is controlled to be closed, and the path of the refrigerant is changed, so that the refrigerant continues to circulate after passing through the recovery coil 34. Then the air valves of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 are controlled to be closed, the reduction fan 316 is controlled to be opened, the dehumidification fan 315 is controlled to be closed, the indoor air is driven by the reduction fan 316 to enter the dehumidification box 31 from the reduction air inlet 313 and to be discharged outdoors from the reduction air outlet 314, the high-temperature and high-pressure gaseous refrigerant discharged by the compressor 11 is firstly circulated to the solid adsorption component 32 through the reduction coil pipe 34 and then continues a conventional refrigeration cycle, the moisture in the solid adsorption component 32 is heated and evaporated into water vapor by the high-temperature and high-pressure refrigerant to be separated out, the separated water vapor is discharged outdoors along with the indoor air, and the solid adsorption component 32 realizes regeneration.
When the heat exchanger 1 is not operated in the cooling mode, the compressor 11 is stopped and the refrigerant is not circulated. At this time, the regeneration of the solid adsorbent 32 cannot be realized by the refrigerant flowing through the reduction coil 34. Since the determination condition for entering the regeneration mode has a certain margin, that is, the solid adsorbent 32 still has a certain adsorption capacity, at this time, the dehumidifying apparatus 3 may be controlled to maintain the state before entering the regeneration mode, that is, if the dehumidifying mode is being operated before, the dehumidifying mode is continuously maintained to operate, and if the dehumidifying mode is being operated before, the stopping state is continuously maintained.
Through when satisfying regeneration condition, further judge heat transfer device 1 whether with the operation of refrigeration mode, the control method of this application can also select solid adsorption component 32's regeneration mode rationally based on heat transfer device 1's current state for solid adsorption component 32's regeneration energy consumption is low, little to user experience influence, avoids the phenomenon of regeneration process to indoor blowing cold wind.
Of course, after referring to the structure shown in fig. 1, those skilled in the art may adjust the present step to operate the dehumidification module in the regeneration mode. For example, the compressor 11 is turned on and keeps operating at a low frequency, and the external fan 121 is controlled to be started, the internal fan 141 is controlled to operate at a low speed, the air deflector of the indoor unit is closed, and the first throttling element 13 is controlled to be opened to a certain opening degree, so that the cooling mode operation of the heat exchanger 1 is realized on the premise that the indoor temperature is not affected as much as possible. And then the second electric control valve 352 is controlled to be opened, the first electric control valve 111 is controlled to be closed, the dehumidifying fan 315 is controlled to be closed, the reducing fan 316 is controlled to be opened, the air valves of the reducing air inlet 313 and the reducing air outlet 314 are controlled to be opened, and the air valves of the dehumidifying air inlet 311 and the dehumidifying air outlet 312 are controlled to be closed, so that the regeneration of the solid adsorption component 32 by the refrigerant passing through the reducing coil pipe 34 is realized.
The operation of the photovoltaic device will now be described in detail with reference to fig. 5.
As shown in fig. 5, the control method of the present application further includes:
s401, acquiring the residual capacity of the power storage component 52; for example, the remaining power of the power storage part 52 is read by the solar controller 53.
S403, comparing the residual electric quantity with the electric quantity threshold value; for example, the power threshold may be any value of 5% to 10% of the total capacity of the power storage part 52, and when the remaining power is acquired, the remaining power is compared with the power threshold. Of course, the magnitude of the charge threshold may be adjusted by one skilled in the art and need not be limited to the ranges set forth herein.
When the remaining power is greater than or equal to the power threshold, it is proved that the power of the power storage part 52 is sufficient at this time, the power storage part 52 can supply power to the dehumidifying apparatus 3, and at this time, step S405 is executed to determine whether the dehumidifying apparatus 3 operates in the dehumidifying mode or the regenerating mode; otherwise, when the remaining power is less than the power threshold, it is proved that the power storage part 52 has a low power and cannot supply power to the dehumidifying device 3, so step S409 is executed to control the photovoltaic panel 51 to charge the power storage part 52.
When the judgment result of the step S405 is that the dehumidifying device 3 is operating in the dehumidifying mode or the regeneration mode, executing a step S407, and controlling the photovoltaic device 5 to supply power to the dehumidifying device 3; for example, if the dehumidifying apparatus 3 is going to or is operating in the dehumidifying mode, the energy storage component is controlled to supply power to the dehumidification air inlet 311 and the dehumidification air outlet 312, and the dehumidification fan 315; if the dehumidifying apparatus 3 is operating in the regeneration mode, the energy storage component is controlled to supply power to the dampers of the reduction inlet 313 and the reduction outlet 314, the reduction fan 316, and the second electrically controlled valve 352. When the determination result of step S405 is that the dehumidifying apparatus 3 is not operating in the dehumidifying mode or the regeneration mode, the process ends or returns to step S401 to continue to acquire the remaining capacity of the electricity storage part 52.
Through setting up photovoltaic device 5 for dehydrating unit 3 can come the power supply through photovoltaic device 5 in the operation process, thereby reduces air conditioning system's energy consumption, realizes air conditioning system's energy-saving control. Of course, since the electric energy converted by the photovoltaic device 5 does not necessarily satisfy the requirement of the dehumidifying device 3, although not shown in the figure, the corresponding commercial power needs to be configured, but the photovoltaic device 5 is preferentially used to supply power to the dehumidifying device 3 in the present embodiment.
Example 2
Next, a second embodiment of the control method of the present application will be described with reference to fig. 6 and 7. Fig. 6 is a system diagram of an air conditioning system according to a second embodiment of the present invention; fig. 7 is a flowchart of a regeneration mode of a dehumidifying apparatus of an air conditioning system according to a second embodiment of the present invention;
as shown in fig. 6 and 7, the present embodiment is different from example 1 in that: the air conditioning system has a different specific configuration and the dehumidification device 3 has a different regeneration mode control method.
Specifically, referring to fig. 6, in the present embodiment, the heat exchanger 1 further includes an indoor water receiving tray 142 and a condensate pipe 143. The indoor water receiving tray 142 is installed in the indoor unit, and one end of the condensed water pipe 143 is communicated with the indoor water receiving tray 142, and the other end is led out of the room.
The reducing component of the dehumidifying device 3 further comprises a reducing water tank 33, a heat exchange coil 35, a cooling water tank 36, a cooling heat exchanger 342 and a cooling fan 343. Wherein, having deposited heat-transfer liquid (being heat transfer medium) in reduction water tank 33, like water or salt solution etc. reduction coil 34 coils and establishes behind solid adsorption component 32, its first end and reduction water tank 33 intercommunication, and the second end communicates with cooling water tank 36, has deposited the coolant liquid in cooling water tank 36, like water or salt solution etc. cooling water tank 36 passes through pipeline 361 and reduction water tank 33 intercommunication to cooling water tank 36 is higher than reduction water tank 33 on setting up the height. The position that is close to first end on reducing coil 34 is provided with circulating pump 341, and the position that is close to the second end is provided with cooling heat exchanger 342, and cooling heat exchanger 342 disposes cooling fan 343, and the preferred plate heat exchanger that adopts of cooling heat exchanger 342. The condensed water pipe 143 is led out of the room and is communicated with the cooling water tank 36.
The heat exchange coil 35 is partially coiled in the reduction water tank 33, and the coiled part in the reduction water tank 33 is S-shaped. After the heat exchange coil 35 is coiled, a first end of the heat exchange coil extends out of the reduction water tank 33 and is communicated with an exhaust port of the compressor 11 of the air conditioning system, and a second end of the heat exchange coil extends out of the reduction water tank 33 and is communicated with an inlet of the outdoor heat exchanger 12 of the air conditioning system. A second electronic control valve 352 is further disposed on the heat exchange coil 35 near the first end, such as a valve body capable of implementing an opening and closing function, for example, an electromagnetic valve, and a second throttling assembly is further disposed on the heat exchange coil 35 near the second end, such as a valve body capable of controlling an opening degree, for example, an electronic expansion valve. The first electrically controlled valve 111 is located on the refrigerant pipe between the first end and the second end of the heat exchanging coil 35.
Photovoltaic device 5 still includes water collector 54 and collector pipe 55, and water collector 54 can be for discoid or leak hopper-shaped, and it sets up in the below of photovoltaic board 51 for collect the rainwater that photovoltaic board 51 was held back, and the first end of collector pipe 55 communicates with water collector 54, and the second end communicates with cooling water tank 36, is used for the rainwater drainage that will collect to cooling water tank 36 in. The solar controller 53 is further connected to the circulation pump 341, the second throttling assembly and the cooling fan 343, respectively, for supplying power to the above components and controlling the above components to operate.
Referring to fig. 7, on the premise of adopting the above setting manner, when the dehumidifying apparatus 3 operates the regeneration mode, the step of the dehumidifying apparatus 3 operating the regeneration mode specifically includes:
s501, acquiring an operation mode of the heat exchange device 1; for example, in the present embodiment, the operation mode of the heat exchanger 1 includes a cooling mode, an air blowing mode, and the like, and the current operation mode of the heat exchanger 1 may be determined by acquiring operation parameters, determining whether the compressor 11 is operating, and the like.
S503, determining whether the heat exchanger 1 is operated in the cooling mode, and controlling the dehumidifier 3 to operate in the regeneration mode based on the determination result. Specifically, when the heat exchange device 1 operates in the cooling mode, step S505 is executed to control the dampers of the reduction air inlet 313 and the reduction air outlet 314 to be opened, the dampers of the dehumidification air inlet 311 and the dehumidification air outlet 312 to be closed, the reduction fan 316, the cooling fan 343, the circulation pump 341 to be opened, the dehumidification fan 315 to be closed, the second electronic control valve 352 to be opened, the first electronic control valve 111 to be closed, and the second throttling element 351 to be fully opened; otherwise, when the heat exchange device 1 does not operate in the cooling mode, step S507 is executed, the air valves of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 are controlled to be closed, the compressor 11, the outer fan 121, the reduction fan 316, the cooling fan 343 and the circulation pump 341 are controlled to be opened, the dehumidification fan 315 is controlled to be closed, the second electronic control valve 352 is controlled to be opened, the first electronic control valve 111 is controlled to be closed, the first throttling element 13 is controlled to be fully opened, and the second throttling element 351 is controlled to be opened to a set opening degree.
For example, when the heat exchanger 1 operates in the cooling mode, the compressor 11 is in an operating state, and the refrigerant is in a circulating state. At this time, the heat-exchange liquid in the reduction water tank 33 can be heated by the high-temperature and high-pressure refrigerant discharged from the compressor 11, and then the solid adsorption assembly 32 is heated by passing the heat-exchange liquid through the reduction coil 34, so as to achieve the regeneration. At this time, referring to fig. 6, the second electronic control valve 352 is controlled to be opened, the first electronic control valve 111 is controlled to be closed, the second throttling element 351 is controlled to be fully opened, and the path of the refrigerant is changed, so that the refrigerant continues to participate in the refrigeration cycle after passing through the heat exchange tube. Then, the air valves of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 are controlled to be closed, and the reduction fan 316, the cooling fan 343 and the circulating pump 341 are controlled to be opened, and the dehumidification fan 315 is controlled to be closed. Indoor air enters the dehumidification box 31 from the reduction air inlet 313 under the driving of the reduction fan 316 and is discharged to the outdoor from the reduction air outlet 314, high-temperature and high-pressure gaseous refrigerants discharged by the compressor 11 enter the reduction water tank 33 through the heat exchange coil 35 and heat exchange liquid in the reduction water tank 33, the circulating pump 341 drives the heat exchange liquid to circulate between the reduction water tank 33 and the cooling water tank 36, when the heat exchange liquid is heated to a higher temperature and circulates to the solid adsorption component 32, moisture in the solid adsorption component 32 is heated and evaporated into water vapor by the heat exchange liquid to be separated out, the separated water vapor is discharged to the outdoor along with the indoor air, and the solid adsorption component 32 realizes regeneration. The heat-exchange liquid entering the reduced temperature water tank 36 exchanges heat with the outdoor air to achieve a temperature reduction when passing through the reduced temperature heat exchanger 342.
When the heat exchanger 1 is not operated in the cooling mode, the compressor 11 is stopped and the refrigerant is not circulated. At this time, the compressor 11 and the external fan 121 are controlled to be opened, the second electronic control valve 352 is opened, the first electronic control valve 111 is closed, the first throttling element 13 is fully opened, the second throttling element 351 is opened to a set opening degree, so that the refrigerant forms a circulation loop, then the air valves of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 are controlled to be closed, and the reduction fan 316, the cooling fan 343 and the circulation pump 341 are controlled to be opened. Under the driving of the reducing fan 316, the indoor air enters the dehumidifying box 31 from the reducing air inlet 313 and is discharged to the outside from the reducing air outlet 314, the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 11 enters the reducing water tank 33 through the heat exchanging coil 35 and is changed into an intermediate-temperature and high-pressure liquid refrigerant after heat exchange with the heat exchanging liquid in the reducing water tank 33, the intermediate-temperature and high-pressure liquid refrigerant is changed into a low-temperature and low-pressure gas-liquid two-phase refrigerant after throttling by the second throttling element 351, the low-temperature and low-pressure gas-liquid two-phase refrigerant enters the outdoor heat exchanger 12 to exchange heat with the outdoor air and is changed into a low-temperature and low-pressure gaseous refrigerant, and the low-temperature and low-pressure gaseous refrigerant returns to the compressor 11 through the air suction port after passing through the indoor heat exchanger 14 to realize the circulation of the refrigerant. The circulating pump 341 drives the heated heat-exchange liquid to circulate between the reduction water tank 33 and the cooling water tank 36, when the heat-exchange liquid is heated to a higher temperature and circulates to the solid adsorption component 32, the moisture in the solid adsorption component 32 is heated by the heat-exchange liquid and evaporated into vapor to be separated out, the separated vapor is discharged to the outside along with the indoor air, and the solid adsorption component 32 realizes regeneration. The heat-exchange liquid entering the reduced temperature water tank 36 exchanges heat with the outdoor air to achieve a temperature reduction when passing through the reduced temperature heat exchanger 342.
In the present embodiment, if the dehumidifying apparatus 3 is operating in the dehumidifying mode, the energy storage component is controlled to supply power to the dehumidification air inlet 311 and the dehumidification air outlet 312, the air valve and the dehumidification fan 315; if the dehumidifying apparatus 3 is operating in the regeneration mode, the energy storage components are controlled to supply power to the dampers of the reduction inlet 313 and the reduction outlet 314, the reduction blower 316, the cooling blower 343, the circulation pump 341, the second throttling element 351, and the second electrically controlled valve 352.
Through when satisfying regeneration conditions, further judge heat transfer device 1 whether with the operation of refrigeration mode, the control method of this application can also rationally select solid adsorption component 32's regeneration mode based on heat transfer device 1's current state for solid adsorption component 32's regeneration energy consumption is low, little to user experience influence, avoids the phenomenon of regeneration process to indoor cold blast. Through setting up reduction water tank 33 and heat exchange coil 35 in the reduction subassembly for when solid adsorption subassembly 32 needs regeneration, can utilize the high temperature refrigerant of air conditioning system operation in-process compressor 11 exhaust to pass through the heat exchange liquid in the heat exchange coil 35 heating reduction water tank 33, then utilize circulating pump 341 drive heat exchange liquid endless mode to realize the heating regeneration to solid adsorption subassembly 32. Through setting up cooling water tank 36 and set up cooling heat exchanger 342 and cooling fan 343 on reduction coil 34, can prevent because the too high and evaporation that leads to of heat transfer liquid temperature is too fast, the condition such as lack of water appears under the prerequisite of guaranteeing that heat transfer liquid is in appropriate heating temperature, improves regeneration stability.
In addition, the setting of cooling water tank 36 can also further promote the heat transfer effect of refrigerant, improves the operating efficiency of air conditioner, reduces the operation energy consumption. Through set up water collector 54 and collector pipe 55 below photovoltaic board 51, realize the collection to the rainwater with the help of photovoltaic board 51 ingeniously for the heat transfer liquid in cooling water tank 36 can be provided by the rainwater of collecting, realizes the utilization of natural resources, water economy resource. Through setting up second throttling element 351 for the regeneration process of solid adsorption component 32 can independently operate, needn't realize with the help of the refrigeration mode, avoids the reduction of user experience that leads to along with the reduction of indoor temperature in the regeneration process of solid adsorption component 32.
Referring now to fig. 8, a possible control flow of the second embodiment of the present application will be described. Fig. 8 is a logic diagram of a control method of an air conditioning system according to a second embodiment of the present invention.
As shown in fig. 8, in one possible control procedure, step S601 is first executed to obtain the indoor ambient humidity RH n And humidity RH of solid adsorption component 32 m 。
Then, step S602 is executed to calculate the difference Δ RH between the indoor ambient humidity and the humidity of the solid adsorbing assembly 32 n -RH m 。
Next, step S603 is executed to determine RH n Whether the Δ RH is more than or equal to 60% and more than or equal to 10% is true or not; when the two are established at the same time, the indoor humidity is proved to be too high and the adsorption capacity of the solid adsorption component 32 is proved to be sufficient, at this time, step S604 is executed to control the dehumidifying device to operate the dehumidifying mode, otherwise, when the two are not established at the same time, step S605 is executed to further judge RH n Whether or not 60% or more is true.
When RH is equal to n When the humidity is more than or equal to 60%, the situation that the indoor humidity is too high but the adsorption capacity of the solid adsorption component 32 is insufficient is proved, at this time, step S606 is executed, the dehumidification device is controlled to operate the regeneration mode firstly, and then the dehumidification mode is operated; otherwise, when RH is n If not, step S607 is executed to further determine whether Δ RH is greater than or equal to 10%.
When the Δ RH is greater than or equal to 10%, it is proved that the indoor humidity is suitable but the solid adsorption component 32 has a risk of insufficient adsorption capacity, at this time, step S608 is executed, the dehumidification module is controlled to operate the regeneration mode, and the control is ended when the regeneration mode meets the exit condition; otherwise, when the Δ RH is not greater than 10%, it is verified that the indoor humidity is suitable and the adsorption capacity of the solid adsorption element 32 is strong, and the control is directly ended.
When step S604 is executed, the dehumidifying apparatus operates in the dehumidifying mode, or step S606 is executed until the dehumidifying apparatus operates in the dehumidifying mode, the indoor ambient humidity RH is obtained n And an operating time t 1 And executing the step S609 to judge RH n If < 50% is true; when RH is equal to n If the humidity is less than 50%, the indoor humidity is proved to be reduced to a suitable interval, and then step S610 is executed to control the dehumidifying device to stop running and end the control; otherwise, when RH is n If < 50% is not satisfied, the step S611 is executed to further determine that RH is more than or equal to 50% n < 55% and t 1 Whether the time is more than or equal to 30min or not.
When the ratio of RH is less than or equal to 50% n < 55% and t 1 When the time is more than or equal to 30min, the indoor humidity is proved to be close to the suitable interval and the running time is too long, at the moment, the step S610 is executed, the dehumidification device is controlled to stop running, and the control is ended; otherwise, step S612 is executed, further based on the indoor ambient humidity RH n Calculating the indoor humidity at the set time t 2 Inner falling speed v ═ Δ RH n /t 2 Then, RH is judged n Whether v is more than or equal to 55% and less than 0.5%/min.
When RH is equal to n When the concentration is greater than or equal to 55% and v is less than 0.5%/min, the adsorption capacity of the solid adsorption component 32 is proved to be insufficient, regeneration is needed, and step S613 is executed at this time to further judge whether the heat exchange device is in refrigeration operation; otherwise, when RH is n When the concentration is greater than or equal to 55% and v is less than 0.5%/min, the adsorption capacity of the solid adsorption component 32 is proved to be acceptable, and then the step S604 is executed to control the dehumidification device to continue to operate the dehumidification mode.
When the heat exchange device operates in the cooling mode, step S614 is executed, the dehumidifying device is controlled to operate in the first regeneration sub-mode, that is, the dampers of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the dampers of the dehumidifying air inlet 311 and the dehumidifying air outlet 312 are controlled to be closed, the reduction fan 316, the cooling fan 343 and the circulating pump 341 are controlled to be opened, the dehumidifying fan 315 is controlled to be closed, the second electric control valve 352 is controlled to be opened, the first electric control valve 111 is controlled to be closed, and the second throttling element 351 is controlled to be fully opened; otherwise, when the heat exchange device does not operate in the cooling mode, step S615 is executed, the dehumidification device is controlled to operate in the second regeneration sub-mode, that is, the air valves of the reduction air inlet 313 and the reduction air outlet 314 are controlled to be opened, the air valves of the dehumidification air inlet 311 and the dehumidification air outlet 312 are controlled to be closed, the compressor 11, the outer fan 121, the reduction fan 316, the cooling fan 343 and the circulation pump 341 are controlled to be opened, the dehumidification fan 315 is controlled to be closed, the second electronic control valve 352 is controlled to be opened, the first electronic control valve 111 is controlled to be closed, the first throttling element is fully opened, and the second throttling element 351 is controlled to be opened to a set opening degree.
When the dehumidifying apparatus operates the first regeneration sub-mode, step S616 is performed to calculate the indoor ambient humidity RH n Humidity RH of solid adsorption component 32 m Difference Δ RH, acquisition of operating time t of regeneration mode 3 And judging that the Delta RH is more than or equal to 10 percent or t 3 Whether the time is more than or equal to 5min or not is established; when Δ RH is greater than or equal to 10% or t 3 When the time is more than or equal to 5min, controlling the dehumidifying device to exit the first regeneration sub-mode, returning to execute the step S604, and continuing to operate the dehumidifying mode; otherwise, when Δ RH is greater than or equal to 10% or t 3 And if not, returning to the step S614, and controlling the dehumidifying device to continuously operate the first regeneration sub-mode.
When the dehumidifying apparatus operates the second regeneration sub-mode, step S617 is performed to calculate the indoor ambient humidity RH n Humidity RH of solid adsorption component 32 m Difference Δ RH, acquisition of operating time t of regeneration mode 4 And judging that the Delta RH is more than or equal to 10 percent or t 4 Whether the time is more than or equal to 5min or not is met; when Δ RH is greater than or equal to 10% or t 4 When the time is more than or equal to 5min, controlling the dehumidifying device to exit the second regeneration sub-mode, returning to execute the step S604, and continuing to operate the dehumidifying mode; otherwise, when Δ RH is greater than or equal to 10% or t 4 And if the time is not more than 5min, returning to the step S615, and controlling the dehumidification device to continuously operate the second regeneration sub-mode.
In addition, although not specifically shown in fig. 8, the air conditioning system of the present application further includes the following steps in the control process:
before the air conditioning system performs the dehumidification mode or the regeneration mode, i.e., before performing steps S604, S606, S608, S614, or S615, the solar controller 53 reads the remaining power Q of the power storage part 52 and compares the remaining power Q with the power threshold Q'; when the comparison result is that Q is more than or equal to Q', the power storage part 52 is controlled to supply power to the power utilization part of the dehumidifying device 3 based on the mode to be operated next; otherwise, when the comparison result is Q < Q', the utility power is controlled to supply power to the power-consuming components of the dehumidifying apparatus 3 based on the mode to be operated next.
Although the foregoing embodiments describe the steps in the above sequential order, those skilled in the art will understand that, in order to achieve the effect of the present embodiments, the steps may not be executed in such an order, and may be executed simultaneously (in parallel) or in an inverse order, and these simple variations are within the scope of the present invention. For example, the step of comparing the indoor ambient humidity with the first humidity threshold value, and the step of comparing the difference between the indoor ambient temperature and the humidity of the solid adsorbing assembly 32 with the first preset difference value may be replaced in sequence; for another example, the steps of determining whether the dehumidifying apparatus 3 exits the dehumidifying mode and whether the regenerating mode is operated may be exchanged; as another example, the step of determining whether to use the photovoltaic device 5 to power the dehumidifying device 3 may also be performed once every preset time, instead of determining before performing the dehumidifying mode or the regeneration mode.
It should be noted that, in the above embodiments, the structure of the air conditioning system is only used for illustrating the principle of the present application, and is not intended to limit the protection scope of the present application. Without departing from the principles of the present application, those skilled in the art may adjust the structure of the air conditioning system, so that the present application may be applicable to more specific application scenarios.
For example, in an alternative embodiment, the dehumidification fan 315 and the reduction fan 316 are not disposed at the same location, and may be replaced if the conditions for allowing the indoor air to pass through the solid sorption assembly 32 are satisfied. For example, the dehumidifying fan 315 may be disposed at the dehumidifying air inlet 311, the reducing fan 316 may be disposed at the reducing air inlet 313, and the like.
For another example, in another alternative embodiment, although the above example 2 describes that the reduction coil 34 is combined with a combination of partial coils disposed inside the solid adsorbent assembly 32 and S-shaped coils, the arrangement may be adjusted by those skilled in the art as long as the adjusted arrangement enables the reduction coil 34 to heat the solid adsorbent assembly 32. For example, the reducing coil 34 may be wound along the outer surface of the solid adsorbent assembly 32, or may be helically wound around the inner surface of the solid adsorbent assembly 32.
As another example, in another alternative embodiment, one skilled in the art may selectively omit one or more of the components described below for a particular application to enable the present application to be tailored to different application scenarios. The components include, but are not limited to: the system comprises a cooling water tank 36, a cooling heat exchanger 342, a cooling fan 343, a first electric control valve 111, a second electric control valve 352, a first throttling element 13, an indoor water receiving disc 142 and a condensate pipe 143. Accordingly, only corresponding adjustments need to be made in the control method.
Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.
Those skilled in the art will appreciate that the general controller may also include other known structures such as processors, controllers, memories, etc., wherein the memories include, but are not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, or registers, etc., and the processors include, but are not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc. Such well-known structures are not shown in the drawings in order to not unnecessarily obscure embodiments of the present disclosure.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It should be noted that although the detailed steps of the method of the present invention have been described in detail, those skilled in the art can combine, separate and change the order of the above steps without departing from the basic principle of the present invention, and the modified technical solution does not change the basic concept of the present invention and thus falls into the protection scope of the present invention.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (6)

1. A control method of an air conditioning system, characterized in that the air conditioning system comprises:
the heat exchange device comprises a compressor, an outdoor heat exchanger, a first throttling element and an indoor heat exchanger which are connected through a refrigerant pipe, wherein the outdoor heat exchanger is provided with an outer fan, and the indoor heat exchanger is provided with an inner fan;
a dehumidification device, the dehumidification device comprising:
the dehumidifying box is provided with a dehumidifying air inlet, a dehumidifying air outlet, a reducing air inlet and a reducing air outlet which can be opened and closed, the dehumidifying air inlet or the dehumidifying air outlet is provided with a dehumidifying fan, and the reducing air inlet or the reducing air outlet is provided with a reducing fan;
the solid adsorption component is fixedly arranged in the dehumidification box;
the reduction assembly comprises a reduction coil, the reduction coil is coiled on the solid adsorption assembly, and a heat exchange medium is allowed to flow through the reduction coil;
the gas vent of compressor is provided with first automatically controlled valve, reduction subassembly still includes:
the heat exchange device comprises a reduction water tank, wherein heat exchange liquid is stored in the reduction water tank, a first end and a second end of a reduction coil are respectively communicated with the reduction water tank, and a circulating pump is arranged on the reduction coil;
the heat exchange coil pipe is arranged in the reduction water tank in a coiling manner, the first end of the heat exchange coil pipe extends out of the reduction water tank and is communicated with the exhaust port of the compressor, and the second end of the heat exchange coil pipe extends out of the reduction water tank and is communicated with the inlet of the outdoor heat exchanger;
a second electrical valve disposed on the heat exchange coil and between the first end of the heat exchange coil and the reduction water tank;
a second throttling element disposed on the heat exchange coil between the reduction water tank and the second end of the heat exchange coil;
the first electric control valve is positioned on the refrigerant pipe between the first end and the second end of the heat exchange coil pipe;
the control method comprises the following steps:
acquiring the indoor environment humidity and the humidity of the solid adsorption component;
calculating a difference between the indoor ambient humidity and the humidity of the solid sorption assembly;
comparing the indoor environment humidity with a first humidity threshold value, and comparing the difference value with a first preset difference value;
selectively controlling the dehumidifying device to operate a dehumidifying mode or a regenerating mode based on the comparison result;
the step of selectively controlling the dehumidifying device to operate the dehumidifying mode or the regenerating mode based on the comparison result further includes:
when the indoor environment humidity is greater than or equal to a first humidity threshold value and the difference value is greater than or equal to a first preset difference value, controlling the dehumidifying device to operate the dehumidifying mode;
when the indoor environment humidity is greater than or equal to a first humidity threshold value and the difference value is smaller than a first preset difference value, controlling the dehumidifying device to operate the regeneration mode firstly and then operate the dehumidifying mode;
when the indoor environment humidity is smaller than a first humidity threshold value and the difference value is larger than or equal to the first preset difference value, controlling the dehumidifying device to only operate the regeneration mode;
the step of "controlling the dehumidifying apparatus to operate the regeneration mode" further includes:
acquiring the operation mode of the heat exchange device;
judging whether the heat exchange device operates in a refrigeration mode or not;
controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result;
the step of controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result includes:
when the heat exchange device does not operate in a refrigeration mode, the air valves of the reduction air inlet and the reduction air outlet are controlled to be opened, the air valves of the dehumidification air inlet and the dehumidification air outlet are controlled to be closed, the compressor, the outer fan, the reduction fan and the circulating pump are controlled to be opened, the dehumidification fan is controlled to be closed, the second electric control valve is controlled to be opened, the first electric control valve is controlled to be closed, the first throttling element is controlled to be fully opened, and the second throttling element is controlled to be opened to a set opening degree.
2. The control method of an air conditioning system according to claim 1, wherein blast valves are respectively provided at the dehumidification air inlet, the dehumidification air outlet, the reduction air inlet, and the reduction air outlet, and the air conditioning system further comprises:
the photovoltaic device comprises a photovoltaic panel, a solar controller and an electricity storage component, the photovoltaic panel is connected with the electricity storage component through the solar controller, and the solar controller is respectively connected with the air valve, the dehumidification fan and the reduction fan;
the control method further comprises the following steps:
acquiring the residual capacity of the power storage component;
comparing the residual electric quantity with an electric quantity threshold value;
and when the residual electric quantity is greater than or equal to the electric quantity threshold value and the dehumidifying device operates in the dehumidifying mode or the regenerating mode, controlling the photovoltaic device to supply power to the air valve, the dehumidifying fan and the reducing fan.
3. The control method of an air conditioning system according to claim 2, characterized by further comprising:
when the dehumidification device operates in a dehumidification mode, judging whether the solid adsorption component meets regeneration conditions;
when the regeneration condition is met, controlling the dehumidifying device to operate a regeneration mode;
when the dehumidification device operates in a dehumidification mode, the air valves at the dehumidification air inlet and the dehumidification air outlet are opened, and the dehumidification fan operates;
wherein the regeneration conditions comprise at least one of the following conditions:
the indoor environment humidity is greater than or equal to a second humidity threshold value, and the difference between the indoor environment humidity and the humidity of the solid adsorption component is smaller than a second preset difference;
the indoor environment humidity is greater than or equal to the second humidity threshold and the falling rate of the indoor environment humidity is smaller than a rate threshold;
wherein the first humidity threshold is greater than the second humidity threshold.
4. The control method of an air conditioning system according to claim 2, wherein the solar controller is connected to the circulation pump; the solar controller is connected with the second electric control valve; the solar controller is connected with the second throttling element;
the step of controlling the dehumidifying apparatus to operate the regeneration mode based on the determination result further includes:
when the heat exchange device operates in a refrigeration mode, the air valves of the reduction air inlet and the reduction air outlet are controlled to be opened, the air valves of the dehumidification air inlet and the dehumidification air outlet are controlled to be closed, the reduction fan and the circulating pump are controlled to be opened, the dehumidification fan is controlled to be closed, and the second electric control valve is controlled to be opened, the first electric control valve is controlled to be closed, and the second throttling element is controlled to be fully opened.
5. The control method of an air conditioning system according to claim 1 or 3, characterized by further comprising:
when the dehumidifying device runs in a regeneration mode, judging whether the dehumidifying device meets an exit condition;
when the exit condition is met, controlling the dehumidifying device to exit the regeneration mode;
wherein the exit condition comprises at least one of:
the difference between the indoor environment humidity and the humidity of the solid adsorption component is greater than or equal to a third preset difference;
the operation time of the regeneration mode reaches a first preset time.
6. The control method of an air conditioning system according to claim 3, characterized by further comprising:
judging whether the dehumidifying device meets a stop condition;
when the stop condition is met, controlling the dehumidifying device to stop running;
wherein the stop condition includes:
the indoor ambient humidity is less than a stop humidity threshold;
and the indoor environment humidity is more than or equal to the stop humidity threshold but less than the second humidity threshold, and the running time of the dehumidifying device reaches a second preset time.
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