CN110986276A - Water multi-connected system anti-freezing control method, computer readable storage medium and air conditioner - Google Patents

Water multi-connected system anti-freezing control method, computer readable storage medium and air conditioner Download PDF

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Publication number
CN110986276A
CN110986276A CN201911214464.1A CN201911214464A CN110986276A CN 110986276 A CN110986276 A CN 110986276A CN 201911214464 A CN201911214464 A CN 201911214464A CN 110986276 A CN110986276 A CN 110986276A
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China
Prior art keywords
water
temperature
freezing
interval
detected
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Pending
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CN201911214464.1A
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Chinese (zh)
Inventor
卢浩贤
李华松
何林
张世航
耿媛媛
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201911214464.1A priority Critical patent/CN110986276A/en
Publication of CN110986276A publication Critical patent/CN110986276A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • 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
    • 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
    • F24F11/85—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 variable-flow pumps
    • 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
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

Abstract

The invention provides a water multi-connected system anti-freezing control method, a computer readable storage medium and an air conditioner, which are characterized in that the state of the current unit operation mode is detected to judge whether an anti-freezing mode needs to be entered, if the current unit operation mode needs to be entered, the temperature interval is distinguished by detecting the environmental temperature, the water inlet temperature of a water inlet at the water side of a cold and hot water generator, the water outlet temperature of a water outlet at the water side of the cold and hot water generator and the anti-freezing temperature inside the water side of the cold and hot water generator are further detected, and the unit is controlled to adjust the relevant operation parameters according to the water inlet. Through multi-condition coupling control of the environment temperature, the water inlet temperature, the water outlet temperature and the anti-freezing temperature, the method is different from the traditional single-condition judgment, can effectively prevent misjudgment in the anti-freezing process, and provides a control idea considering accuracy, comfortableness and energy conservation.

Description

Water multi-connected system anti-freezing control method, computer readable storage medium and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a water multi-connected system anti-freezing control method, a computer readable storage medium and an air conditioner.
Background
The traditional household water machine has aging functions, the internal machine and the external machine can not be linked, the refrigeration is carried out only by providing a fixed water temperature, the comfort is poor, the indoor refrigeration and heating effects are generally achieved by using a refrigerant as a refrigerant, but the traditional multi-split machine has the characteristics that the air outlet temperature difference is large, the operation process is unscientific, the energy saving performance is poor, and particularly the poor use habit is easy to cause the situations; the indoor air conditioning requirement of a room is used, the water machine with linkage of the indoor machine and the outdoor machine can be realized, the indoor water machine has stronger product competitiveness than the traditional household water machine which cannot be linked, the comfortable air conditioning capacity of the indoor water machine can be matched with a fluorine multi-split air conditioner, the indoor water machine is favored more and more, and the indoor water machine has the advantages of high matching ratio and no excessive dehumidification during refrigeration.
In the existing multi-split water system, a plurality of indoor units are connected with an outdoor unit through a water system. The control system terminal is arranged on the inner machine, the output of the outer machine is controlled according to the requirement of the inner machine, and the most needed water feeding temperature and flow are given to the inner machine; the indoor unit is responsible for adjusting air volume. Therefore, the control operation of the water multi-connected unit is realized. When the household water multi-unit is carried with the wind plate for heating, the running water temperature of the hot water generator is 25-55 ℃. The refrigerant in the hot water generator continuously provides heat for the water system. Compared with the traditional household water machine, the linkage control function of the main machine and the indoor air disc is added, the tail end control is directly carried out, and the main machine does not need to be operated independently. The host machine adopts intelligent variable water temperature control, and automatically adjusts water temperature setting according to indoor real-time load requirements; compared with the constant water temperature output of the traditional household water machine, the water temperature output control device can effectively reduce the running cost of the machine set.
However, the water system freezing problem exists in the process that the water multi-connected system is not started in winter, and the main reason for the phenomenon is that the environmental temperature is lower than the freezing temperature of water when the unit is not operated in winter. The occurrence of the freezing problem not only seriously affects the user experience, but also creates certain hidden danger in the aspect of system safety.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-freezing control method for a water multi-connected system, which can be applied to a household water multi-connected system, can realize comfortable anti-freezing control on the premise of intelligent control and energy-saving control through multi-condition coupling control of environment temperature, water inlet temperature, water outlet temperature and anti-freezing temperature, and can effectively avoid the phenomenon of misjudgment in the anti-freezing process compared with the traditional control idea of controlling the conditions of entering and exiting anti-freezing through a single condition.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water multi-connected system anti-freezing control method comprises the steps of detecting the current unit operation mode state, judging whether an anti-freezing mode needs to be entered, if the anti-freezing mode needs to be entered, distinguishing a temperature interval through detecting the environment temperature, further detecting the water inlet temperature of a water inlet at the water side of a cold and hot water generator, the water outlet temperature of a water outlet at the water side of the cold and hot water generator and the anti-freezing temperature inside the water side of the cold and hot water generator, and analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature to control a. Through multi-condition coupling control of the environment temperature, the water inlet temperature, the water outlet temperature and the anti-freezing temperature, the method is different from the traditional single-condition judgment, can effectively prevent misjudgment in the anti-freezing process, and provides a control idea considering accuracy, comfortableness and energy conservation.
Further, the detecting the current unit operation mode state and judging whether the anti-freezing mode needs to be entered specifically includes: if the unit operation mode is a heating mode, the unit does not enter an anti-freezing mode, and a heating action command is executed; and if the unit operation mode is a refrigeration mode or a standby state, entering an anti-freezing mode. The water side system in the heating mode cannot generate freezing phenomenon, so that a heating action command is preferentially executed, and in the cooling mode, the freezing condition is easy to occur due to the fact that the water temperature of the cold and hot water generator is low, and the freezing condition is easy to occur as the temperature is lower, so that the anti-freezing detection is only carried out in the cooling mode or the standby mode, and the purposes of accurate detection and accurate judgment are achieved.
Further, the temperature interval distinguished by detecting the ambient temperature specifically includes: detecting an environment temperature T environment, and if the T environment is less than or equal to b ℃, judging that the environment temperature is in a first interval; if the temperature b is higher than T and lower than or equal to a ℃, judging that the environmental temperature is in a second interval; and if the T environment is more than a ℃, judging that the environment temperature is in a third interval, wherein a and b are both preset temperature values, the first interval temperature is less than the second interval temperature, and the second interval temperature is less than the third interval temperature. The method comprises the steps of firstly detecting the ambient temperature, distinguishing the temperature range of the ambient temperature, then carrying out targeted detection and judgment according to different temperature ranges, and subdividing judgment conditions to judge the current situation more accurately so as to control the unit to accurately adjust working state parameters.
Further, the analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature so as to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at a low rotating speed S1, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m is less than m, the water pump is controlled to operate at a medium rotating speed S2, wherein m is a preset temperature value, k and h are preset time values, S1 and S2 are preset rotating speed values, and S1 is less than S2. The lower the temperature is, the more easily the freezing is, the temperature is relatively reduced at the moment, the water pump is started, and the low-rotation-speed anti-freezing is started because the temperature is in a preset range. By detecting the temperature difference of inlet and outlet water and the anti-freezing temperature, when the temperature is relatively low, different rotating speed values and different water flow disturbance of water side circulation are different, the temperature of the water side of a room is higher than that of the water side of the outdoor side in the environment of automatic anti-freezing in winter, and the full mixing disturbance of the water on the indoor side of the outdoor side is accelerated to enable the water to be fully mixed and disturbedThe temperature of the water side is increased to be higher than the freezing temperature, and when different water temperatures are detected, the water side circulation is increased by adopting different water pump rotating speeds so as to improve the anti-freezing condition, thereby achieving the effects of effective anti-freezing and energy saving.
Further, the analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature so as to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, the water pump is controlled to be started and operated at the middle rotating speed S2, and after the water pump is operated for h min, T is continuously detected by k SInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceAnd (5) controlling the water pump to operate at a high rotating speed S3, wherein S3 is a preset rotating speed value, and S2 is less than S3.
Further, the analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature so as to control the unit to adjust the relevant operation parameters specifically comprises: when the environment temperature is judged to be in the first interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at the middle rotating speed S2, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m, the water pump is controlled to operate at a high speed S3.
Further, the analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature so as to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, the water pump is controlled to be started and operated at a high rotating speed S3, and after the water pump is operated for h min, T is continuously detected by k SInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf the frequency is less than m & lt-2 & gt, the unit is controlled to start a heating mode, and the compressor works at a fixed frequency n hz, wherein n is a preset frequency value. When the water temperature is detected to be lower, the compressor needs to be started to be in a heating mode, which is an ultimate means and is necessary, and the existence of the variable frequency water pump greatly relieves the phenomenon that the compressor is specially started to be heated to prevent freezing.
Further, the analyzing and calculating according to the water inlet temperature, the water outlet temperature and the anti-freezing temperature so as to control the unit to adjust the relevant operation parameters specifically comprises: and when the environment temperature is judged to be in the third interval, the unit continuously detects and feeds back the environment temperature value. Determining ambient temperature, e.g. TEnvironment(s)When the temperature is higher than a ℃, the antifreezing is not judged at the moment. The ambient temperature value is used as a first judgment condition for whether freeze protection is achieved or not, and subsequent further detection and judgment can be facilitated.
A computer-readable storage medium storing a computer program that implements the water multi-connected system antifreeze control method of any one of the above when called by a processor.
An air conditioner comprising a processor and a memory for storing a computer program that, when invoked by the processor, implements the water multi-connected system antifreeze control method of any of the above.
The antifreezing control method for the water multi-connected system, the computer readable storage medium and the air conditioner provided by the invention have the beneficial effects that: the problem that the existing water multi-connection product is frozen due to the fact that a water side heat exchange system is not started in winter is solved, and the problem that energy is not saved due to the existing anti-freezing control is solved; the control method is more intelligent and energy-saving on the basis of ensuring the use safety of users, and simultaneously gives consideration to the accuracy, the comfort and the energy conservation.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example 1: an anti-freezing control method for a water multi-connected system.
As shown in fig. 1, a water multi-connected system anti-freezing control method specifically includes the following steps:
firstly, judging whether the compressor acts:
the compressor is in operation, if the compressor is in a heating mode, the compressor does not enter an anti-freezing command, and preferentially executes a heating action command;
the compressor is in operation, if the compressor is in a refrigeration mode, the environment temperature, the water inlet temperature, the water outlet temperature and the anti-freezing temperature are judged, and a corresponding anti-freezing command is entered;
judging the environment temperature, the water inlet temperature, the water outlet temperature and the anti-freezing temperature if the compressor is not in operation, and respectively entering corresponding anti-freezing commands;
entering an anti-freezing command:
the first step is as follows: when the compressor is not operated:
1) detecting and feeding back ambient temperature value TEnvironment(s)：
A. When b ℃ < T is detectedEnvironment(s)At most a deg.C, if k seconds are continued, detecting TInflow waterNot less than m, or TDischarging waterNot less than m, or TAnti-freezing deviceMore than or equal to m; the unit does not act, and the environmental temperature value is continuously monitored;
if the duration of k seconds is detected TInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at a low rotating speed S1, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m is less than m, controlling the water pump to operate at the middle rotating speed S2;
if the duration of k seconds is detected TInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, the water pump is controlled to be startedRunning at the middle rotating speed S2, and continuously detecting T k S after the water pump runs for h minInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, controlling the water pump to operate at a high rotating speed S3;
B. when b ℃ ≥ T is detectedEnvironment(s)If the time duration of k seconds is detected TInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at the middle rotating speed S2, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m is less than m, controlling the water pump to operate at a high rotating speed S3;
if the duration of k seconds is detected TInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, the water pump is controlled to be started and operated at a high rotating speed S3, and after the water pump is operated for h min, T is continuously detected by k SInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf the frequency is less than m & lt-2 & gt, the unit is controlled to start a heating mode, and the compressor works at a fixed frequency n hz;
C. when T is detectedEnvironment(s)If the temperature is higher than a ℃, continuously detecting and feeding back the ambient temperature value, and returning to the first step to execute a corresponding command;
the second step is that: in the heating operation state, the heating operation command is preferentially executed.
The difference of different rotating speeds is explained here, and by detecting the temperature of inlet and outlet water and the difference of anti-freezing temperature, when the temperature is relatively low, the water flow disturbance of the water side circulation is different in size at different rotating speed values, and the implicit knowledge is that in the environment of automatic anti-freezing in winter, the water side temperature of a room is higher than the water side temperature of the outdoor side, the full mixing disturbance of the water on the indoor side of the outdoor side is accelerated to increase the water side temperature to be higher than the freezing temperature, which is also the energy-saving control point mentioned in the invention, when different water temperatures are detected, the water side circulation is increased by adopting different water pump rotating speeds to improve the anti-freezing condition, if the water temperature is detected to be lower, the compressor is required to be started to be in a heating mode, the ultimate means is also necessary but simultaneously the energy is not saved, therefore, the phenomenon that the compressor is specially started to heat to prevent freezing is relieved to a great extent by the variable frequency water pump.
Example 2: a computer readable storage medium.
A computer-readable storage medium storing a computer program that implements the antifreeze control method of the water multi-connected system according to embodiment 1 when the computer program is called by a processor.
Example 3: an air conditioner.
An air conditioner comprising a processor and a memory, wherein the memory is used for storing a computer program, and the computer program realizes the anti-freezing control method of the water multi-connected system in embodiment 1 when being called by the processor.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.

Claims (10)

1. A water multi-connected system anti-freezing control method is characterized in that the current unit operation mode state is detected to judge whether an anti-freezing mode needs to be entered, if the current unit operation mode state needs to be entered, a temperature interval is distinguished through detecting the environment temperature, the water inlet temperature of a water inlet at the water side of a cold and hot water generator, the water outlet temperature of a water outlet at the water side of the cold and hot water generator and the anti-freezing temperature inside the water side of the cold and hot water generator are further detected, and the unit is controlled to adjust relevant operation parameters according to the water inlet temperature, the water outlet temperature and the anti.
2. The anti-freezing control method for the water multi-connected system according to claim 1, wherein the detecting the current unit operation mode state and judging whether the anti-freezing mode needs to be entered specifically comprises: if the unit operation mode is a heating mode, the unit does not enter an anti-freezing mode, and a heating action command is executed; and if the unit operation mode is a refrigeration mode or a standby state, entering an anti-freezing mode.
3. The anti-freezing control method for the water multi-connected system as claimed in claim 1, wherein the temperature interval differentiation by detecting the ambient temperature is specifically: detecting an environment temperature T environment, and if the T environment is less than or equal to b ℃, judging that the environment temperature is in a first interval; if the temperature b is higher than T and lower than or equal to a ℃, judging that the environmental temperature is in a second interval; and if the T environment is more than a ℃, judging that the environment temperature is in a third interval, wherein a and b are both preset temperature values, the first interval temperature is less than the second interval temperature, and the second interval temperature is less than the third interval temperature.
4. The anti-freezing control method for the water multi-connected system as claimed in claim 3, wherein the analyzing and calculating according to the inlet water temperature, the outlet water temperature and the anti-freezing temperature to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at the rotating speed S1, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m is less than m, the water pump is controlled to operate at a rotating speed S2, wherein m is a preset temperature value, k and h are preset time values, S1 and S2 are preset rotating speed values, and S1 is less than S2.
5. The anti-freezing control method for the water multi-connected system as claimed in claim 3, wherein the analyzing and calculating according to the inlet water temperature, the outlet water temperature and the anti-freezing temperature to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, controlling the water pump to be started and to run at the rotating speed S2, and after the water pump runs for h min, continuously detecting T at k SInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf the rotation speed is less than m-2, the water pump is controlled to operate at the rotation speed S3, wherein S3 is a preset rotation speed value, and S2 is less than S3.
6. The anti-freezing control method for the water multi-connected system as claimed in claim 3, wherein the analyzing and calculating according to the inlet water temperature, the outlet water temperature and the anti-freezing temperature to control the unit to adjust the relevant operation parameters specifically comprises: when the environment temperature is judged to be in the first interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m, or TDischarging water< m, or TAnti-freezing deviceIf m is less than m, the water pump is controlled to be started and operated at the rotating speed S2, and m-2 < T is detected to be more than m-2 after the water pump is operated for h min continuously k SInflow water< m, or m-2 < TDischarging water< m, or m-2 < TAnti-freezing deviceIf m, the water pump is controlled to operate at the rotating speed S3.
7. The anti-freezing control method for the water multi-connected system as claimed in claim 3, wherein the analyzing and calculating according to the inlet water temperature, the outlet water temperature and the anti-freezing temperature to control the unit to adjust the relevant operation parameters specifically comprises: when the environmental temperature is judged to be in the second interval, the water inlet temperature T is detectedInflow waterWater outlet temperature TDischarging waterAnd anti-freezing temperature TAnti-freezing deviceIf T is detected continuously k sInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf m-2, controlling the water pump to be started and to run at the rotating speed S3, and after the water pump runs for h min, continuously detecting T at k SInflow water< m-2, or TDischarging water< m-2, or TAnti-freezing deviceIf the frequency is less than m & lt-2 & gt, the unit is controlled to start a heating mode, and the compressor works at a fixed frequency n hz, wherein n is a preset frequency value.
8. The anti-freezing control method for the water multi-connected system as claimed in claim 3, wherein the analyzing and calculating according to the inlet water temperature, the outlet water temperature and the anti-freezing temperature to control the unit to adjust the relevant operation parameters specifically comprises: and when the environment temperature is judged to be in the third interval, the unit continuously detects and feeds back the environment temperature value.
9. A computer-readable storage medium storing a computer program, wherein the computer program, when being invoked by a processor, implements the water multi-connected system antifreeze control method according to any one of claims 1 to 8.
10. An air conditioner comprising a processor and a memory for storing a computer program, wherein the computer program when invoked by the processor implements the water multi-connected system antifreeze control method of any one of claims 1 to 8.
CN201911214464.1A 2019-12-02 2019-12-02 Water multi-connected system anti-freezing control method, computer readable storage medium and air conditioner Pending CN110986276A (en)

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CN112630257A (en) * 2020-12-28 2021-04-09 宁波铭瑞中兴电子科技有限公司 Glass water tank monitoring method and system, intelligent terminal and storage medium
CN112902400A (en) * 2020-12-30 2021-06-04 珠海拓芯科技有限公司 Air conditioner water system anti-freezing control method and device and air conditioner
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CN112630257A (en) * 2020-12-28 2021-04-09 宁波铭瑞中兴电子科技有限公司 Glass water tank monitoring method and system, intelligent terminal and storage medium
CN112630257B (en) * 2020-12-28 2024-03-22 宁波铭瑞中兴电子科技有限公司 Glass water tank monitoring method, system, intelligent terminal and storage medium
CN112902400A (en) * 2020-12-30 2021-06-04 珠海拓芯科技有限公司 Air conditioner water system anti-freezing control method and device and air conditioner
CN112984879A (en) * 2021-03-03 2021-06-18 广东芬尼克兹节能设备有限公司 Fluorine road anti-freezing control method, device, equipment and storage medium
CN112984879B (en) * 2021-03-03 2023-02-21 广东芬尼克兹节能设备有限公司 Fluorine road anti-freezing control method, device, equipment and storage medium
CN113654396A (en) * 2021-08-24 2021-11-16 珠海格力电器股份有限公司 Plate heat exchanger anti-freezing control method, plate heat exchanger and air conditioner

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